Migrate to go modules (Go 1.11)

303 files changed, 87 insertions, 76636 deletions

diff --git a/vendor/golang.org/x/crypto/.gitattributes b/vendor/golang.org/x/crypto/.gitattributes
deleted file mode 100644
index d2f212e..0000000
--- a/vendor/golang.org/x/crypto/.gitattributes
+++ /dev/null
@@ -1,10 +0,0 @@
-# Treat all files in this repo as binary, with no git magic updating
-# line endings. Windows users contributing to Go will need to use a
-# modern version of git and editors capable of LF line endings.
-#
-# We'll prevent accidental CRLF line endings from entering the repo
-# via the git-review gofmt checks.
-#
-# See golang.org/issue/9281
-
-* -text
diff --git a/vendor/golang.org/x/crypto/.gitignore b/vendor/golang.org/x/crypto/.gitignore
deleted file mode 100644
index 8339fd6..0000000
--- a/vendor/golang.org/x/crypto/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-# Add no patterns to .hgignore except for files generated by the build.
-last-change
diff --git a/vendor/golang.org/x/crypto/CONTRIBUTING.md b/vendor/golang.org/x/crypto/CONTRIBUTING.md
deleted file mode 100644
index d0485e8..0000000
--- a/vendor/golang.org/x/crypto/CONTRIBUTING.md
+++ /dev/null
@@ -1,26 +0,0 @@
-# Contributing to Go
-
-Go is an open source project.
-
-It is the work of hundreds of contributors. We appreciate your help!
-
-## Filing issues
-
-When [filing an issue](https://golang.org/issue/new), make sure to answer these five questions:
-
-1.  What version of Go are you using (`go version`)?
-2.  What operating system and processor architecture are you using?
-3.  What did you do?
-4.  What did you expect to see?
-5.  What did you see instead?
-
-General questions should go to the [golang-nuts mailing list](https://groups.google.com/group/golang-nuts) instead of the issue tracker.
-The gophers there will answer or ask you to file an issue if you've tripped over a bug.
-
-## Contributing code
-
-Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html)
-before sending patches.
-
-Unless otherwise noted, the Go source files are distributed under
-the BSD-style license found in the LICENSE file.
diff --git a/vendor/golang.org/x/crypto/README.md b/vendor/golang.org/x/crypto/README.md
deleted file mode 100644
index c9d6fec..0000000
--- a/vendor/golang.org/x/crypto/README.md
+++ /dev/null
@@ -1,21 +0,0 @@
-# Go Cryptography
-
-This repository holds supplementary Go cryptography libraries.
-
-## Download/Install
-
-The easiest way to install is to run `go get -u golang.org/x/crypto/...`. You
-can also manually git clone the repository to `$GOPATH/src/golang.org/x/crypto`.
-
-## Report Issues / Send Patches
-
-This repository uses Gerrit for code changes. To learn how to submit changes to
-this repository, see https://golang.org/doc/contribute.html.
-
-The main issue tracker for the crypto repository is located at
-https://github.com/golang/go/issues. Prefix your issue with "x/crypto:" in the
-subject line, so it is easy to find.
-
-Note that contributions to the cryptography package receive additional scrutiny
-due to their sensitive nature. Patches may take longer than normal to receive
-feedback.
diff --git a/vendor/golang.org/x/crypto/acme/acme.go b/vendor/golang.org/x/crypto/acme/acme.go
index 8257ffb..7df6476 100644
--- a/vendor/golang.org/x/crypto/acme/acme.go
+++ b/vendor/golang.org/x/crypto/acme/acme.go
@@ -39,8 +39,18 @@ import (
 	"time"
 )
 
-// LetsEncryptURL is the Directory endpoint of Let's Encrypt CA.
-const LetsEncryptURL = "https://acme-v01.api.letsencrypt.org/directory"
+const (
+	// LetsEncryptURL is the Directory endpoint of Let's Encrypt CA.
+	LetsEncryptURL = "https://acme-v01.api.letsencrypt.org/directory"
+
+	// ALPNProto is the ALPN protocol name used by a CA server when validating
+	// tls-alpn-01 challenges.
+	//
+	// Package users must ensure their servers can negotiate the ACME ALPN in
+	// order for tls-alpn-01 challenge verifications to succeed.
+	// See the crypto/tls package's Config.NextProtos field.
+	ALPNProto = "acme-tls/1"
+)
 
 // idPeACMEIdentifierV1 is the OID for the ACME extension for the TLS-ALPN challenge.
 var idPeACMEIdentifierV1 = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1, 30, 1}
@@ -645,8 +655,9 @@ func (c *Client) doReg(ctx context.Context, url string, typ string, acct *Accoun
 		req.Agreement = acct.AgreedTerms
 	}
 	res, err := c.post(ctx, c.Key, url, req, wantStatus(
-		http.StatusOK,      // updates and deletes
-		http.StatusCreated, // new account creation
+		http.StatusOK,       // updates and deletes
+		http.StatusCreated,  // new account creation
+		http.StatusAccepted, // Let's Encrypt divergent implementation
 	))
 	if err != nil {
 		return nil, err
diff --git a/vendor/golang.org/x/crypto/acme/acme_test.go b/vendor/golang.org/x/crypto/acme/acme_test.go
deleted file mode 100644
index ef1fe47..0000000
--- a/vendor/golang.org/x/crypto/acme/acme_test.go
+++ /dev/null
@@ -1,1313 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package acme
-
-import (
-	"bytes"
-	"context"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/base64"
-	"encoding/hex"
-	"encoding/json"
-	"fmt"
-	"math/big"
-	"net/http"
-	"net/http/httptest"
-	"reflect"
-	"sort"
-	"strings"
-	"testing"
-	"time"
-)
-
-// Decodes a JWS-encoded request and unmarshals the decoded JSON into a provided
-// interface.
-func decodeJWSRequest(t *testing.T, v interface{}, r *http.Request) {
-	// Decode request
-	var req struct{ Payload string }
-	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		t.Fatal(err)
-	}
-	payload, err := base64.RawURLEncoding.DecodeString(req.Payload)
-	if err != nil {
-		t.Fatal(err)
-	}
-	err = json.Unmarshal(payload, v)
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-type jwsHead struct {
-	Alg   string
-	Nonce string
-	JWK   map[string]string `json:"jwk"`
-}
-
-func decodeJWSHead(r *http.Request) (*jwsHead, error) {
-	var req struct{ Protected string }
-	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
-		return nil, err
-	}
-	b, err := base64.RawURLEncoding.DecodeString(req.Protected)
-	if err != nil {
-		return nil, err
-	}
-	var head jwsHead
-	if err := json.Unmarshal(b, &head); err != nil {
-		return nil, err
-	}
-	return &head, nil
-}
-
-func TestDiscover(t *testing.T) {
-	const (
-		reg    = "https://example.com/acme/new-reg"
-		authz  = "https://example.com/acme/new-authz"
-		cert   = "https://example.com/acme/new-cert"
-		revoke = "https://example.com/acme/revoke-cert"
-	)
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "application/json")
-		fmt.Fprintf(w, `{
-			"new-reg": %q,
-			"new-authz": %q,
-			"new-cert": %q,
-			"revoke-cert": %q
-		}`, reg, authz, cert, revoke)
-	}))
-	defer ts.Close()
-	c := Client{DirectoryURL: ts.URL}
-	dir, err := c.Discover(context.Background())
-	if err != nil {
-		t.Fatal(err)
-	}
-	if dir.RegURL != reg {
-		t.Errorf("dir.RegURL = %q; want %q", dir.RegURL, reg)
-	}
-	if dir.AuthzURL != authz {
-		t.Errorf("dir.AuthzURL = %q; want %q", dir.AuthzURL, authz)
-	}
-	if dir.CertURL != cert {
-		t.Errorf("dir.CertURL = %q; want %q", dir.CertURL, cert)
-	}
-	if dir.RevokeURL != revoke {
-		t.Errorf("dir.RevokeURL = %q; want %q", dir.RevokeURL, revoke)
-	}
-}
-
-func TestRegister(t *testing.T) {
-	contacts := []string{"mailto:admin@example.com"}
-
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource  string
-			Contact   []string
-			Agreement string
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "new-reg" {
-			t.Errorf("j.Resource = %q; want new-reg", j.Resource)
-		}
-		if !reflect.DeepEqual(j.Contact, contacts) {
-			t.Errorf("j.Contact = %v; want %v", j.Contact, contacts)
-		}
-
-		w.Header().Set("Location", "https://ca.tld/acme/reg/1")
-		w.Header().Set("Link", `<https://ca.tld/acme/new-authz>;rel="next"`)
-		w.Header().Add("Link", `<https://ca.tld/acme/recover-reg>;rel="recover"`)
-		w.Header().Add("Link", `<https://ca.tld/acme/terms>;rel="terms-of-service"`)
-		w.WriteHeader(http.StatusCreated)
-		b, _ := json.Marshal(contacts)
-		fmt.Fprintf(w, `{"contact": %s}`, b)
-	}))
-	defer ts.Close()
-
-	prompt := func(url string) bool {
-		const terms = "https://ca.tld/acme/terms"
-		if url != terms {
-			t.Errorf("prompt url = %q; want %q", url, terms)
-		}
-		return false
-	}
-
-	c := Client{Key: testKeyEC, dir: &Directory{RegURL: ts.URL}}
-	a := &Account{Contact: contacts}
-	var err error
-	if a, err = c.Register(context.Background(), a, prompt); err != nil {
-		t.Fatal(err)
-	}
-	if a.URI != "https://ca.tld/acme/reg/1" {
-		t.Errorf("a.URI = %q; want https://ca.tld/acme/reg/1", a.URI)
-	}
-	if a.Authz != "https://ca.tld/acme/new-authz" {
-		t.Errorf("a.Authz = %q; want https://ca.tld/acme/new-authz", a.Authz)
-	}
-	if a.CurrentTerms != "https://ca.tld/acme/terms" {
-		t.Errorf("a.CurrentTerms = %q; want https://ca.tld/acme/terms", a.CurrentTerms)
-	}
-	if !reflect.DeepEqual(a.Contact, contacts) {
-		t.Errorf("a.Contact = %v; want %v", a.Contact, contacts)
-	}
-}
-
-func TestUpdateReg(t *testing.T) {
-	const terms = "https://ca.tld/acme/terms"
-	contacts := []string{"mailto:admin@example.com"}
-
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource  string
-			Contact   []string
-			Agreement string
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "reg" {
-			t.Errorf("j.Resource = %q; want reg", j.Resource)
-		}
-		if j.Agreement != terms {
-			t.Errorf("j.Agreement = %q; want %q", j.Agreement, terms)
-		}
-		if !reflect.DeepEqual(j.Contact, contacts) {
-			t.Errorf("j.Contact = %v; want %v", j.Contact, contacts)
-		}
-
-		w.Header().Set("Link", `<https://ca.tld/acme/new-authz>;rel="next"`)
-		w.Header().Add("Link", `<https://ca.tld/acme/recover-reg>;rel="recover"`)
-		w.Header().Add("Link", fmt.Sprintf(`<%s>;rel="terms-of-service"`, terms))
-		w.WriteHeader(http.StatusOK)
-		b, _ := json.Marshal(contacts)
-		fmt.Fprintf(w, `{"contact":%s, "agreement":%q}`, b, terms)
-	}))
-	defer ts.Close()
-
-	c := Client{Key: testKeyEC}
-	a := &Account{URI: ts.URL, Contact: contacts, AgreedTerms: terms}
-	var err error
-	if a, err = c.UpdateReg(context.Background(), a); err != nil {
-		t.Fatal(err)
-	}
-	if a.Authz != "https://ca.tld/acme/new-authz" {
-		t.Errorf("a.Authz = %q; want https://ca.tld/acme/new-authz", a.Authz)
-	}
-	if a.AgreedTerms != terms {
-		t.Errorf("a.AgreedTerms = %q; want %q", a.AgreedTerms, terms)
-	}
-	if a.CurrentTerms != terms {
-		t.Errorf("a.CurrentTerms = %q; want %q", a.CurrentTerms, terms)
-	}
-	if a.URI != ts.URL {
-		t.Errorf("a.URI = %q; want %q", a.URI, ts.URL)
-	}
-}
-
-func TestGetReg(t *testing.T) {
-	const terms = "https://ca.tld/acme/terms"
-	const newTerms = "https://ca.tld/acme/new-terms"
-	contacts := []string{"mailto:admin@example.com"}
-
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource  string
-			Contact   []string
-			Agreement string
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "reg" {
-			t.Errorf("j.Resource = %q; want reg", j.Resource)
-		}
-		if len(j.Contact) != 0 {
-			t.Errorf("j.Contact = %v", j.Contact)
-		}
-		if j.Agreement != "" {
-			t.Errorf("j.Agreement = %q", j.Agreement)
-		}
-
-		w.Header().Set("Link", `<https://ca.tld/acme/new-authz>;rel="next"`)
-		w.Header().Add("Link", `<https://ca.tld/acme/recover-reg>;rel="recover"`)
-		w.Header().Add("Link", fmt.Sprintf(`<%s>;rel="terms-of-service"`, newTerms))
-		w.WriteHeader(http.StatusOK)
-		b, _ := json.Marshal(contacts)
-		fmt.Fprintf(w, `{"contact":%s, "agreement":%q}`, b, terms)
-	}))
-	defer ts.Close()
-
-	c := Client{Key: testKeyEC}
-	a, err := c.GetReg(context.Background(), ts.URL)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if a.Authz != "https://ca.tld/acme/new-authz" {
-		t.Errorf("a.AuthzURL = %q; want https://ca.tld/acme/new-authz", a.Authz)
-	}
-	if a.AgreedTerms != terms {
-		t.Errorf("a.AgreedTerms = %q; want %q", a.AgreedTerms, terms)
-	}
-	if a.CurrentTerms != newTerms {
-		t.Errorf("a.CurrentTerms = %q; want %q", a.CurrentTerms, newTerms)
-	}
-	if a.URI != ts.URL {
-		t.Errorf("a.URI = %q; want %q", a.URI, ts.URL)
-	}
-}
-
-func TestAuthorize(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource   string
-			Identifier struct {
-				Type  string
-				Value string
-			}
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "new-authz" {
-			t.Errorf("j.Resource = %q; want new-authz", j.Resource)
-		}
-		if j.Identifier.Type != "dns" {
-			t.Errorf("j.Identifier.Type = %q; want dns", j.Identifier.Type)
-		}
-		if j.Identifier.Value != "example.com" {
-			t.Errorf("j.Identifier.Value = %q; want example.com", j.Identifier.Value)
-		}
-
-		w.Header().Set("Location", "https://ca.tld/acme/auth/1")
-		w.WriteHeader(http.StatusCreated)
-		fmt.Fprintf(w, `{
-			"identifier": {"type":"dns","value":"example.com"},
-			"status":"pending",
-			"challenges":[
-				{
-					"type":"http-01",
-					"status":"pending",
-					"uri":"https://ca.tld/acme/challenge/publickey/id1",
-					"token":"token1"
-				},
-				{
-					"type":"tls-sni-01",
-					"status":"pending",
-					"uri":"https://ca.tld/acme/challenge/publickey/id2",
-					"token":"token2"
-				}
-			],
-			"combinations":[[0],[1]]}`)
-	}))
-	defer ts.Close()
-
-	cl := Client{Key: testKeyEC, dir: &Directory{AuthzURL: ts.URL}}
-	auth, err := cl.Authorize(context.Background(), "example.com")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if auth.URI != "https://ca.tld/acme/auth/1" {
-		t.Errorf("URI = %q; want https://ca.tld/acme/auth/1", auth.URI)
-	}
-	if auth.Status != "pending" {
-		t.Errorf("Status = %q; want pending", auth.Status)
-	}
-	if auth.Identifier.Type != "dns" {
-		t.Errorf("Identifier.Type = %q; want dns", auth.Identifier.Type)
-	}
-	if auth.Identifier.Value != "example.com" {
-		t.Errorf("Identifier.Value = %q; want example.com", auth.Identifier.Value)
-	}
-
-	if n := len(auth.Challenges); n != 2 {
-		t.Fatalf("len(auth.Challenges) = %d; want 2", n)
-	}
-
-	c := auth.Challenges[0]
-	if c.Type != "http-01" {
-		t.Errorf("c.Type = %q; want http-01", c.Type)
-	}
-	if c.URI != "https://ca.tld/acme/challenge/publickey/id1" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id1", c.URI)
-	}
-	if c.Token != "token1" {
-		t.Errorf("c.Token = %q; want token1", c.Token)
-	}
-
-	c = auth.Challenges[1]
-	if c.Type != "tls-sni-01" {
-		t.Errorf("c.Type = %q; want tls-sni-01", c.Type)
-	}
-	if c.URI != "https://ca.tld/acme/challenge/publickey/id2" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id2", c.URI)
-	}
-	if c.Token != "token2" {
-		t.Errorf("c.Token = %q; want token2", c.Token)
-	}
-
-	combs := [][]int{{0}, {1}}
-	if !reflect.DeepEqual(auth.Combinations, combs) {
-		t.Errorf("auth.Combinations: %+v\nwant: %+v\n", auth.Combinations, combs)
-	}
-}
-
-func TestAuthorizeValid(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "nonce")
-			return
-		}
-		w.WriteHeader(http.StatusCreated)
-		w.Write([]byte(`{"status":"valid"}`))
-	}))
-	defer ts.Close()
-	client := Client{Key: testKey, dir: &Directory{AuthzURL: ts.URL}}
-	_, err := client.Authorize(context.Background(), "example.com")
-	if err != nil {
-		t.Errorf("err = %v", err)
-	}
-}
-
-func TestGetAuthorization(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != "GET" {
-			t.Errorf("r.Method = %q; want GET", r.Method)
-		}
-
-		w.WriteHeader(http.StatusOK)
-		fmt.Fprintf(w, `{
-			"identifier": {"type":"dns","value":"example.com"},
-			"status":"pending",
-			"challenges":[
-				{
-					"type":"http-01",
-					"status":"pending",
-					"uri":"https://ca.tld/acme/challenge/publickey/id1",
-					"token":"token1"
-				},
-				{
-					"type":"tls-sni-01",
-					"status":"pending",
-					"uri":"https://ca.tld/acme/challenge/publickey/id2",
-					"token":"token2"
-				}
-			],
-			"combinations":[[0],[1]]}`)
-	}))
-	defer ts.Close()
-
-	cl := Client{Key: testKeyEC}
-	auth, err := cl.GetAuthorization(context.Background(), ts.URL)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if auth.Status != "pending" {
-		t.Errorf("Status = %q; want pending", auth.Status)
-	}
-	if auth.Identifier.Type != "dns" {
-		t.Errorf("Identifier.Type = %q; want dns", auth.Identifier.Type)
-	}
-	if auth.Identifier.Value != "example.com" {
-		t.Errorf("Identifier.Value = %q; want example.com", auth.Identifier.Value)
-	}
-
-	if n := len(auth.Challenges); n != 2 {
-		t.Fatalf("len(set.Challenges) = %d; want 2", n)
-	}
-
-	c := auth.Challenges[0]
-	if c.Type != "http-01" {
-		t.Errorf("c.Type = %q; want http-01", c.Type)
-	}
-	if c.URI != "https://ca.tld/acme/challenge/publickey/id1" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id1", c.URI)
-	}
-	if c.Token != "token1" {
-		t.Errorf("c.Token = %q; want token1", c.Token)
-	}
-
-	c = auth.Challenges[1]
-	if c.Type != "tls-sni-01" {
-		t.Errorf("c.Type = %q; want tls-sni-01", c.Type)
-	}
-	if c.URI != "https://ca.tld/acme/challenge/publickey/id2" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id2", c.URI)
-	}
-	if c.Token != "token2" {
-		t.Errorf("c.Token = %q; want token2", c.Token)
-	}
-
-	combs := [][]int{{0}, {1}}
-	if !reflect.DeepEqual(auth.Combinations, combs) {
-		t.Errorf("auth.Combinations: %+v\nwant: %+v\n", auth.Combinations, combs)
-	}
-}
-
-func TestWaitAuthorization(t *testing.T) {
-	t.Run("wait loop", func(t *testing.T) {
-		var count int
-		authz, err := runWaitAuthorization(context.Background(), t, func(w http.ResponseWriter, r *http.Request) {
-			count++
-			w.Header().Set("Retry-After", "0")
-			if count > 1 {
-				fmt.Fprintf(w, `{"status":"valid"}`)
-				return
-			}
-			fmt.Fprintf(w, `{"status":"pending"}`)
-		})
-		if err != nil {
-			t.Fatalf("non-nil error: %v", err)
-		}
-		if authz == nil {
-			t.Fatal("authz is nil")
-		}
-	})
-	t.Run("invalid status", func(t *testing.T) {
-		_, err := runWaitAuthorization(context.Background(), t, func(w http.ResponseWriter, r *http.Request) {
-			fmt.Fprintf(w, `{"status":"invalid"}`)
-		})
-		if _, ok := err.(*AuthorizationError); !ok {
-			t.Errorf("err is %v (%T); want non-nil *AuthorizationError", err, err)
-		}
-	})
-	t.Run("non-retriable error", func(t *testing.T) {
-		const code = http.StatusBadRequest
-		_, err := runWaitAuthorization(context.Background(), t, func(w http.ResponseWriter, r *http.Request) {
-			w.WriteHeader(code)
-		})
-		res, ok := err.(*Error)
-		if !ok {
-			t.Fatalf("err is %v (%T); want a non-nil *Error", err, err)
-		}
-		if res.StatusCode != code {
-			t.Errorf("res.StatusCode = %d; want %d", res.StatusCode, code)
-		}
-	})
-	for _, code := range []int{http.StatusTooManyRequests, http.StatusInternalServerError} {
-		t.Run(fmt.Sprintf("retriable %d error", code), func(t *testing.T) {
-			var count int
-			authz, err := runWaitAuthorization(context.Background(), t, func(w http.ResponseWriter, r *http.Request) {
-				count++
-				w.Header().Set("Retry-After", "0")
-				if count > 1 {
-					fmt.Fprintf(w, `{"status":"valid"}`)
-					return
-				}
-				w.WriteHeader(code)
-			})
-			if err != nil {
-				t.Fatalf("non-nil error: %v", err)
-			}
-			if authz == nil {
-				t.Fatal("authz is nil")
-			}
-		})
-	}
-	t.Run("context cancel", func(t *testing.T) {
-		ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
-		defer cancel()
-		_, err := runWaitAuthorization(ctx, t, func(w http.ResponseWriter, r *http.Request) {
-			w.Header().Set("Retry-After", "60")
-			fmt.Fprintf(w, `{"status":"pending"}`)
-		})
-		if err == nil {
-			t.Error("err is nil")
-		}
-	})
-}
-func runWaitAuthorization(ctx context.Context, t *testing.T, h http.HandlerFunc) (*Authorization, error) {
-	t.Helper()
-	ts := httptest.NewServer(h)
-	defer ts.Close()
-	type res struct {
-		authz *Authorization
-		err   error
-	}
-	ch := make(chan res, 1)
-	go func() {
-		var client Client
-		a, err := client.WaitAuthorization(ctx, ts.URL)
-		ch <- res{a, err}
-	}()
-	select {
-	case <-time.After(3 * time.Second):
-		t.Fatal("WaitAuthorization took too long to return")
-	case v := <-ch:
-		return v.authz, v.err
-	}
-	panic("runWaitAuthorization: out of select")
-}
-
-func TestRevokeAuthorization(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "nonce")
-			return
-		}
-		switch r.URL.Path {
-		case "/1":
-			var req struct {
-				Resource string
-				Status   string
-				Delete   bool
-			}
-			decodeJWSRequest(t, &req, r)
-			if req.Resource != "authz" {
-				t.Errorf("req.Resource = %q; want authz", req.Resource)
-			}
-			if req.Status != "deactivated" {
-				t.Errorf("req.Status = %q; want deactivated", req.Status)
-			}
-			if !req.Delete {
-				t.Errorf("req.Delete is false")
-			}
-		case "/2":
-			w.WriteHeader(http.StatusBadRequest)
-		}
-	}))
-	defer ts.Close()
-	client := &Client{Key: testKey}
-	ctx := context.Background()
-	if err := client.RevokeAuthorization(ctx, ts.URL+"/1"); err != nil {
-		t.Errorf("err = %v", err)
-	}
-	if client.RevokeAuthorization(ctx, ts.URL+"/2") == nil {
-		t.Error("nil error")
-	}
-}
-
-func TestPollChallenge(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != "GET" {
-			t.Errorf("r.Method = %q; want GET", r.Method)
-		}
-
-		w.WriteHeader(http.StatusOK)
-		fmt.Fprintf(w, `{
-			"type":"http-01",
-			"status":"pending",
-			"uri":"https://ca.tld/acme/challenge/publickey/id1",
-			"token":"token1"}`)
-	}))
-	defer ts.Close()
-
-	cl := Client{Key: testKeyEC}
-	chall, err := cl.GetChallenge(context.Background(), ts.URL)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if chall.Status != "pending" {
-		t.Errorf("Status = %q; want pending", chall.Status)
-	}
-	if chall.Type != "http-01" {
-		t.Errorf("c.Type = %q; want http-01", chall.Type)
-	}
-	if chall.URI != "https://ca.tld/acme/challenge/publickey/id1" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id1", chall.URI)
-	}
-	if chall.Token != "token1" {
-		t.Errorf("c.Token = %q; want token1", chall.Token)
-	}
-}
-
-func TestAcceptChallenge(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource string
-			Type     string
-			Auth     string `json:"keyAuthorization"`
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "challenge" {
-			t.Errorf(`resource = %q; want "challenge"`, j.Resource)
-		}
-		if j.Type != "http-01" {
-			t.Errorf(`type = %q; want "http-01"`, j.Type)
-		}
-		keyAuth := "token1." + testKeyECThumbprint
-		if j.Auth != keyAuth {
-			t.Errorf(`keyAuthorization = %q; want %q`, j.Auth, keyAuth)
-		}
-
-		// Respond to request
-		w.WriteHeader(http.StatusAccepted)
-		fmt.Fprintf(w, `{
-			"type":"http-01",
-			"status":"pending",
-			"uri":"https://ca.tld/acme/challenge/publickey/id1",
-			"token":"token1",
-			"keyAuthorization":%q
-		}`, keyAuth)
-	}))
-	defer ts.Close()
-
-	cl := Client{Key: testKeyEC}
-	c, err := cl.Accept(context.Background(), &Challenge{
-		URI:   ts.URL,
-		Token: "token1",
-		Type:  "http-01",
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if c.Type != "http-01" {
-		t.Errorf("c.Type = %q; want http-01", c.Type)
-	}
-	if c.URI != "https://ca.tld/acme/challenge/publickey/id1" {
-		t.Errorf("c.URI = %q; want https://ca.tld/acme/challenge/publickey/id1", c.URI)
-	}
-	if c.Token != "token1" {
-		t.Errorf("c.Token = %q; want token1", c.Token)
-	}
-}
-
-func TestNewCert(t *testing.T) {
-	notBefore := time.Now()
-	notAfter := notBefore.AddDate(0, 2, 0)
-	timeNow = func() time.Time { return notBefore }
-
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "test-nonce")
-			return
-		}
-		if r.Method != "POST" {
-			t.Errorf("r.Method = %q; want POST", r.Method)
-		}
-
-		var j struct {
-			Resource  string `json:"resource"`
-			CSR       string `json:"csr"`
-			NotBefore string `json:"notBefore,omitempty"`
-			NotAfter  string `json:"notAfter,omitempty"`
-		}
-		decodeJWSRequest(t, &j, r)
-
-		// Test request
-		if j.Resource != "new-cert" {
-			t.Errorf(`resource = %q; want "new-cert"`, j.Resource)
-		}
-		if j.NotBefore != notBefore.Format(time.RFC3339) {
-			t.Errorf(`notBefore = %q; wanted %q`, j.NotBefore, notBefore.Format(time.RFC3339))
-		}
-		if j.NotAfter != notAfter.Format(time.RFC3339) {
-			t.Errorf(`notAfter = %q; wanted %q`, j.NotAfter, notAfter.Format(time.RFC3339))
-		}
-
-		// Respond to request
-		template := x509.Certificate{
-			SerialNumber: big.NewInt(int64(1)),
-			Subject: pkix.Name{
-				Organization: []string{"goacme"},
-			},
-			NotBefore: notBefore,
-			NotAfter:  notAfter,
-
-			KeyUsage:              x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
-			ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
-			BasicConstraintsValid: true,
-		}
-
-		sampleCert, err := x509.CreateCertificate(rand.Reader, &template, &template, &testKeyEC.PublicKey, testKeyEC)
-		if err != nil {
-			t.Fatalf("Error creating certificate: %v", err)
-		}
-
-		w.Header().Set("Location", "https://ca.tld/acme/cert/1")
-		w.WriteHeader(http.StatusCreated)
-		w.Write(sampleCert)
-	}))
-	defer ts.Close()
-
-	csr := x509.CertificateRequest{
-		Version: 0,
-		Subject: pkix.Name{
-			CommonName:   "example.com",
-			Organization: []string{"goacme"},
-		},
-	}
-	csrb, err := x509.CreateCertificateRequest(rand.Reader, &csr, testKeyEC)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	c := Client{Key: testKeyEC, dir: &Directory{CertURL: ts.URL}}
-	cert, certURL, err := c.CreateCert(context.Background(), csrb, notAfter.Sub(notBefore), false)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if cert == nil {
-		t.Errorf("cert is nil")
-	}
-	if certURL != "https://ca.tld/acme/cert/1" {
-		t.Errorf("certURL = %q; want https://ca.tld/acme/cert/1", certURL)
-	}
-}
-
-func TestFetchCert(t *testing.T) {
-	var count byte
-	var ts *httptest.Server
-	ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		count++
-		if count < 3 {
-			up := fmt.Sprintf("<%s>;rel=up", ts.URL)
-			w.Header().Set("Link", up)
-		}
-		w.Write([]byte{count})
-	}))
-	defer ts.Close()
-	res, err := (&Client{}).FetchCert(context.Background(), ts.URL, true)
-	if err != nil {
-		t.Fatalf("FetchCert: %v", err)
-	}
-	cert := [][]byte{{1}, {2}, {3}}
-	if !reflect.DeepEqual(res, cert) {
-		t.Errorf("res = %v; want %v", res, cert)
-	}
-}
-
-func TestFetchCertRetry(t *testing.T) {
-	var count int
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if count < 1 {
-			w.Header().Set("Retry-After", "0")
-			w.WriteHeader(http.StatusTooManyRequests)
-			count++
-			return
-		}
-		w.Write([]byte{1})
-	}))
-	defer ts.Close()
-	res, err := (&Client{}).FetchCert(context.Background(), ts.URL, false)
-	if err != nil {
-		t.Fatalf("FetchCert: %v", err)
-	}
-	cert := [][]byte{{1}}
-	if !reflect.DeepEqual(res, cert) {
-		t.Errorf("res = %v; want %v", res, cert)
-	}
-}
-
-func TestFetchCertCancel(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Retry-After", "0")
-		w.WriteHeader(http.StatusAccepted)
-	}))
-	defer ts.Close()
-	ctx, cancel := context.WithCancel(context.Background())
-	done := make(chan struct{})
-	var err error
-	go func() {
-		_, err = (&Client{}).FetchCert(ctx, ts.URL, false)
-		close(done)
-	}()
-	cancel()
-	<-done
-	if err != context.Canceled {
-		t.Errorf("err = %v; want %v", err, context.Canceled)
-	}
-}
-
-func TestFetchCertDepth(t *testing.T) {
-	var count byte
-	var ts *httptest.Server
-	ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		count++
-		if count > maxChainLen+1 {
-			t.Errorf("count = %d; want at most %d", count, maxChainLen+1)
-			w.WriteHeader(http.StatusInternalServerError)
-		}
-		w.Header().Set("Link", fmt.Sprintf("<%s>;rel=up", ts.URL))
-		w.Write([]byte{count})
-	}))
-	defer ts.Close()
-	_, err := (&Client{}).FetchCert(context.Background(), ts.URL, true)
-	if err == nil {
-		t.Errorf("err is nil")
-	}
-}
-
-func TestFetchCertBreadth(t *testing.T) {
-	var ts *httptest.Server
-	ts = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		for i := 0; i < maxChainLen+1; i++ {
-			w.Header().Add("Link", fmt.Sprintf("<%s>;rel=up", ts.URL))
-		}
-		w.Write([]byte{1})
-	}))
-	defer ts.Close()
-	_, err := (&Client{}).FetchCert(context.Background(), ts.URL, true)
-	if err == nil {
-		t.Errorf("err is nil")
-	}
-}
-
-func TestFetchCertSize(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		b := bytes.Repeat([]byte{1}, maxCertSize+1)
-		w.Write(b)
-	}))
-	defer ts.Close()
-	_, err := (&Client{}).FetchCert(context.Background(), ts.URL, false)
-	if err == nil {
-		t.Errorf("err is nil")
-	}
-}
-
-func TestRevokeCert(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method == "HEAD" {
-			w.Header().Set("Replay-Nonce", "nonce")
-			return
-		}
-
-		var req struct {
-			Resource    string
-			Certificate string
-			Reason      int
-		}
-		decodeJWSRequest(t, &req, r)
-		if req.Resource != "revoke-cert" {
-			t.Errorf("req.Resource = %q; want revoke-cert", req.Resource)
-		}
-		if req.Reason != 1 {
-			t.Errorf("req.Reason = %d; want 1", req.Reason)
-		}
-		// echo -n cert | base64 | tr -d '=' | tr '/+' '_-'
-		cert := "Y2VydA"
-		if req.Certificate != cert {
-			t.Errorf("req.Certificate = %q; want %q", req.Certificate, cert)
-		}
-	}))
-	defer ts.Close()
-	client := &Client{
-		Key: testKeyEC,
-		dir: &Directory{RevokeURL: ts.URL},
-	}
-	ctx := context.Background()
-	if err := client.RevokeCert(ctx, nil, []byte("cert"), CRLReasonKeyCompromise); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestNonce_add(t *testing.T) {
-	var c Client
-	c.addNonce(http.Header{"Replay-Nonce": {"nonce"}})
-	c.addNonce(http.Header{"Replay-Nonce": {}})
-	c.addNonce(http.Header{"Replay-Nonce": {"nonce"}})
-
-	nonces := map[string]struct{}{"nonce": {}}
-	if !reflect.DeepEqual(c.nonces, nonces) {
-		t.Errorf("c.nonces = %q; want %q", c.nonces, nonces)
-	}
-}
-
-func TestNonce_addMax(t *testing.T) {
-	c := &Client{nonces: make(map[string]struct{})}
-	for i := 0; i < maxNonces; i++ {
-		c.nonces[fmt.Sprintf("%d", i)] = struct{}{}
-	}
-	c.addNonce(http.Header{"Replay-Nonce": {"nonce"}})
-	if n := len(c.nonces); n != maxNonces {
-		t.Errorf("len(c.nonces) = %d; want %d", n, maxNonces)
-	}
-}
-
-func TestNonce_fetch(t *testing.T) {
-	tests := []struct {
-		code  int
-		nonce string
-	}{
-		{http.StatusOK, "nonce1"},
-		{http.StatusBadRequest, "nonce2"},
-		{http.StatusOK, ""},
-	}
-	var i int
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != "HEAD" {
-			t.Errorf("%d: r.Method = %q; want HEAD", i, r.Method)
-		}
-		w.Header().Set("Replay-Nonce", tests[i].nonce)
-		w.WriteHeader(tests[i].code)
-	}))
-	defer ts.Close()
-	for ; i < len(tests); i++ {
-		test := tests[i]
-		c := &Client{}
-		n, err := c.fetchNonce(context.Background(), ts.URL)
-		if n != test.nonce {
-			t.Errorf("%d: n=%q; want %q", i, n, test.nonce)
-		}
-		switch {
-		case err == nil && test.nonce == "":
-			t.Errorf("%d: n=%q, err=%v; want non-nil error", i, n, err)
-		case err != nil && test.nonce != "":
-			t.Errorf("%d: n=%q, err=%v; want %q", i, n, err, test.nonce)
-		}
-	}
-}
-
-func TestNonce_fetchError(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusTooManyRequests)
-	}))
-	defer ts.Close()
-	c := &Client{}
-	_, err := c.fetchNonce(context.Background(), ts.URL)
-	e, ok := err.(*Error)
-	if !ok {
-		t.Fatalf("err is %T; want *Error", err)
-	}
-	if e.StatusCode != http.StatusTooManyRequests {
-		t.Errorf("e.StatusCode = %d; want %d", e.StatusCode, http.StatusTooManyRequests)
-	}
-}
-
-func TestNonce_postJWS(t *testing.T) {
-	var count int
-	seen := make(map[string]bool)
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		count++
-		w.Header().Set("Replay-Nonce", fmt.Sprintf("nonce%d", count))
-		if r.Method == "HEAD" {
-			// We expect the client do a HEAD request
-			// but only to fetch the first nonce.
-			return
-		}
-		// Make client.Authorize happy; we're not testing its result.
-		defer func() {
-			w.WriteHeader(http.StatusCreated)
-			w.Write([]byte(`{"status":"valid"}`))
-		}()
-
-		head, err := decodeJWSHead(r)
-		if err != nil {
-			t.Errorf("decodeJWSHead: %v", err)
-			return
-		}
-		if head.Nonce == "" {
-			t.Error("head.Nonce is empty")
-			return
-		}
-		if seen[head.Nonce] {
-			t.Errorf("nonce is already used: %q", head.Nonce)
-		}
-		seen[head.Nonce] = true
-	}))
-	defer ts.Close()
-
-	client := Client{Key: testKey, dir: &Directory{AuthzURL: ts.URL}}
-	if _, err := client.Authorize(context.Background(), "example.com"); err != nil {
-		t.Errorf("client.Authorize 1: %v", err)
-	}
-	// The second call should not generate another extra HEAD request.
-	if _, err := client.Authorize(context.Background(), "example.com"); err != nil {
-		t.Errorf("client.Authorize 2: %v", err)
-	}
-
-	if count != 3 {
-		t.Errorf("total requests count: %d; want 3", count)
-	}
-	if n := len(client.nonces); n != 1 {
-		t.Errorf("len(client.nonces) = %d; want 1", n)
-	}
-	for k := range seen {
-		if _, exist := client.nonces[k]; exist {
-			t.Errorf("used nonce %q in client.nonces", k)
-		}
-	}
-}
-
-func TestLinkHeader(t *testing.T) {
-	h := http.Header{"Link": {
-		`<https://example.com/acme/new-authz>;rel="next"`,
-		`<https://example.com/acme/recover-reg>; rel=recover`,
-		`<https://example.com/acme/terms>; foo=bar; rel="terms-of-service"`,
-		`<dup>;rel="next"`,
-	}}
-	tests := []struct {
-		rel string
-		out []string
-	}{
-		{"next", []string{"https://example.com/acme/new-authz", "dup"}},
-		{"recover", []string{"https://example.com/acme/recover-reg"}},
-		{"terms-of-service", []string{"https://example.com/acme/terms"}},
-		{"empty", nil},
-	}
-	for i, test := range tests {
-		if v := linkHeader(h, test.rel); !reflect.DeepEqual(v, test.out) {
-			t.Errorf("%d: linkHeader(%q): %v; want %v", i, test.rel, v, test.out)
-		}
-	}
-}
-
-func TestTLSSNI01ChallengeCert(t *testing.T) {
-	const (
-		token = "evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA"
-		// echo -n <token.testKeyECThumbprint> | shasum -a 256
-		san = "dbbd5eefe7b4d06eb9d1d9f5acb4c7cd.a27d320e4b30332f0b6cb441734ad7b0.acme.invalid"
-	)
-
-	client := &Client{Key: testKeyEC}
-	tlscert, name, err := client.TLSSNI01ChallengeCert(token)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if n := len(tlscert.Certificate); n != 1 {
-		t.Fatalf("len(tlscert.Certificate) = %d; want 1", n)
-	}
-	cert, err := x509.ParseCertificate(tlscert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(cert.DNSNames) != 1 || cert.DNSNames[0] != san {
-		t.Fatalf("cert.DNSNames = %v; want %q", cert.DNSNames, san)
-	}
-	if cert.DNSNames[0] != name {
-		t.Errorf("cert.DNSNames[0] != name: %q vs %q", cert.DNSNames[0], name)
-	}
-	if cn := cert.Subject.CommonName; cn != san {
-		t.Errorf("cert.Subject.CommonName = %q; want %q", cn, san)
-	}
-}
-
-func TestTLSSNI02ChallengeCert(t *testing.T) {
-	const (
-		token = "evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA"
-		// echo -n evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA | shasum -a 256
-		sanA = "7ea0aaa69214e71e02cebb18bb867736.09b730209baabf60e43d4999979ff139.token.acme.invalid"
-		// echo -n <token.testKeyECThumbprint> | shasum -a 256
-		sanB = "dbbd5eefe7b4d06eb9d1d9f5acb4c7cd.a27d320e4b30332f0b6cb441734ad7b0.ka.acme.invalid"
-	)
-
-	client := &Client{Key: testKeyEC}
-	tlscert, name, err := client.TLSSNI02ChallengeCert(token)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if n := len(tlscert.Certificate); n != 1 {
-		t.Fatalf("len(tlscert.Certificate) = %d; want 1", n)
-	}
-	cert, err := x509.ParseCertificate(tlscert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	names := []string{sanA, sanB}
-	if !reflect.DeepEqual(cert.DNSNames, names) {
-		t.Fatalf("cert.DNSNames = %v;\nwant %v", cert.DNSNames, names)
-	}
-	sort.Strings(cert.DNSNames)
-	i := sort.SearchStrings(cert.DNSNames, name)
-	if i >= len(cert.DNSNames) || cert.DNSNames[i] != name {
-		t.Errorf("%v doesn't have %q", cert.DNSNames, name)
-	}
-	if cn := cert.Subject.CommonName; cn != sanA {
-		t.Errorf("CommonName = %q; want %q", cn, sanA)
-	}
-}
-
-func TestTLSALPN01ChallengeCert(t *testing.T) {
-	const (
-		token   = "evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA"
-		keyAuth = "evaGxfADs6pSRb2LAv9IZf17Dt3juxGJ-PCt92wr-oA." + testKeyECThumbprint
-		// echo -n <token.testKeyECThumbprint> | shasum -a 256
-		h      = "0420dbbd5eefe7b4d06eb9d1d9f5acb4c7cda27d320e4b30332f0b6cb441734ad7b0"
-		domain = "example.com"
-	)
-
-	extValue, err := hex.DecodeString(h)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	client := &Client{Key: testKeyEC}
-	tlscert, err := client.TLSALPN01ChallengeCert(token, domain)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if n := len(tlscert.Certificate); n != 1 {
-		t.Fatalf("len(tlscert.Certificate) = %d; want 1", n)
-	}
-	cert, err := x509.ParseCertificate(tlscert.Certificate[0])
-	if err != nil {
-		t.Fatal(err)
-	}
-	names := []string{domain}
-	if !reflect.DeepEqual(cert.DNSNames, names) {
-		t.Fatalf("cert.DNSNames = %v;\nwant %v", cert.DNSNames, names)
-	}
-	if cn := cert.Subject.CommonName; cn != domain {
-		t.Errorf("CommonName = %q; want %q", cn, domain)
-	}
-	acmeExts := []pkix.Extension{}
-	for _, ext := range cert.Extensions {
-		if idPeACMEIdentifierV1.Equal(ext.Id) {
-			acmeExts = append(acmeExts, ext)
-		}
-	}
-	if len(acmeExts) != 1 {
-		t.Errorf("acmeExts = %v; want exactly one", acmeExts)
-	}
-	if !acmeExts[0].Critical {
-		t.Errorf("acmeExt.Critical = %v; want true", acmeExts[0].Critical)
-	}
-	if bytes.Compare(acmeExts[0].Value, extValue) != 0 {
-		t.Errorf("acmeExt.Value = %v; want %v", acmeExts[0].Value, extValue)
-	}
-
-}
-
-func TestTLSChallengeCertOpt(t *testing.T) {
-	key, err := rsa.GenerateKey(rand.Reader, 512)
-	if err != nil {
-		t.Fatal(err)
-	}
-	tmpl := &x509.Certificate{
-		SerialNumber: big.NewInt(2),
-		Subject:      pkix.Name{Organization: []string{"Test"}},
-		DNSNames:     []string{"should-be-overwritten"},
-	}
-	opts := []CertOption{WithKey(key), WithTemplate(tmpl)}
-
-	client := &Client{Key: testKeyEC}
-	cert1, _, err := client.TLSSNI01ChallengeCert("token", opts...)
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert2, _, err := client.TLSSNI02ChallengeCert("token", opts...)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for i, tlscert := range []tls.Certificate{cert1, cert2} {
-		// verify generated cert private key
-		tlskey, ok := tlscert.PrivateKey.(*rsa.PrivateKey)
-		if !ok {
-			t.Errorf("%d: tlscert.PrivateKey is %T; want *rsa.PrivateKey", i, tlscert.PrivateKey)
-			continue
-		}
-		if tlskey.D.Cmp(key.D) != 0 {
-			t.Errorf("%d: tlskey.D = %v; want %v", i, tlskey.D, key.D)
-		}
-		// verify generated cert public key
-		x509Cert, err := x509.ParseCertificate(tlscert.Certificate[0])
-		if err != nil {
-			t.Errorf("%d: %v", i, err)
-			continue
-		}
-		tlspub, ok := x509Cert.PublicKey.(*rsa.PublicKey)
-		if !ok {
-			t.Errorf("%d: x509Cert.PublicKey is %T; want *rsa.PublicKey", i, x509Cert.PublicKey)
-			continue
-		}
-		if tlspub.N.Cmp(key.N) != 0 {
-			t.Errorf("%d: tlspub.N = %v; want %v", i, tlspub.N, key.N)
-		}
-		// verify template option
-		sn := big.NewInt(2)
-		if x509Cert.SerialNumber.Cmp(sn) != 0 {
-			t.Errorf("%d: SerialNumber = %v; want %v", i, x509Cert.SerialNumber, sn)
-		}
-		org := []string{"Test"}
-		if !reflect.DeepEqual(x509Cert.Subject.Organization, org) {
-			t.Errorf("%d: Subject.Organization = %+v; want %+v", i, x509Cert.Subject.Organization, org)
-		}
-		for _, v := range x509Cert.DNSNames {
-			if !strings.HasSuffix(v, ".acme.invalid") {
-				t.Errorf("%d: invalid DNSNames element: %q", i, v)
-			}
-		}
-	}
-}
-
-func TestHTTP01Challenge(t *testing.T) {
-	const (
-		token = "xxx"
-		// thumbprint is precomputed for testKeyEC in jws_test.go
-		value   = token + "." + testKeyECThumbprint
-		urlpath = "/.well-known/acme-challenge/" + token
-	)
-	client := &Client{Key: testKeyEC}
-	val, err := client.HTTP01ChallengeResponse(token)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if val != value {
-		t.Errorf("val = %q; want %q", val, value)
-	}
-	if path := client.HTTP01ChallengePath(token); path != urlpath {
-		t.Errorf("path = %q; want %q", path, urlpath)
-	}
-}
-
-func TestDNS01ChallengeRecord(t *testing.T) {
-	// echo -n xxx.<testKeyECThumbprint> | \
-	//      openssl dgst -binary -sha256 | \
-	//      base64 | tr -d '=' | tr '/+' '_-'
-	const value = "8DERMexQ5VcdJ_prpPiA0mVdp7imgbCgjsG4SqqNMIo"
-
-	client := &Client{Key: testKeyEC}
-	val, err := client.DNS01ChallengeRecord("xxx")
-	if err != nil {
-		t.Fatal(err)
-	}
-	if val != value {
-		t.Errorf("val = %q; want %q", val, value)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/autocert/autocert.go b/vendor/golang.org/x/crypto/acme/autocert/autocert.go
index c8fa4e6..4c2fc07 100644
--- a/vendor/golang.org/x/crypto/acme/autocert/autocert.go
+++ b/vendor/golang.org/x/crypto/acme/autocert/autocert.go
@@ -44,7 +44,7 @@ var createCertRetryAfter = time.Minute
 var pseudoRand *lockedMathRand
 
 func init() {
-	src := mathrand.NewSource(timeNow().UnixNano())
+	src := mathrand.NewSource(time.Now().UnixNano())
 	pseudoRand = &lockedMathRand{rnd: mathrand.New(src)}
 }
 
@@ -81,9 +81,9 @@ func defaultHostPolicy(context.Context, string) error {
 }
 
 // Manager is a stateful certificate manager built on top of acme.Client.
-// It obtains and refreshes certificates automatically using "tls-sni-01",
-// "tls-sni-02" and "http-01" challenge types, as well as providing them
-// to a TLS server via tls.Config.
+// It obtains and refreshes certificates automatically using "tls-alpn-01",
+// "tls-sni-01", "tls-sni-02" and "http-01" challenge types,
+// as well as providing them to a TLS server via tls.Config.
 //
 // You must specify a cache implementation, such as DirCache,
 // to reuse obtained certificates across program restarts.
@@ -177,18 +177,22 @@ type Manager struct {
 	// to be provisioned.
 	// The entries are stored for the duration of the authorization flow.
 	httpTokens map[string][]byte
-	// certTokens contains temporary certificates for tls-sni challenges
+	// certTokens contains temporary certificates for tls-sni and tls-alpn challenges
 	// and is keyed by token domain name, which matches server name of ClientHello.
-	// Keys always have ".acme.invalid" suffix.
+	// Keys always have ".acme.invalid" suffix for tls-sni. Otherwise, they are domain names
+	// for tls-alpn.
 	// The entries are stored for the duration of the authorization flow.
 	certTokens map[string]*tls.Certificate
+	// nowFunc, if not nil, returns the current time. This may be set for
+	// testing purposes.
+	nowFunc func() time.Time
 }
 
 // certKey is the key by which certificates are tracked in state, renewal and cache.
 type certKey struct {
 	domain  string // without trailing dot
 	isRSA   bool   // RSA cert for legacy clients (as opposed to default ECDSA)
-	isToken bool   // tls-sni challenge token cert; key type is undefined regardless of isRSA
+	isToken bool   // tls-based challenge token cert; key type is undefined regardless of isRSA
 }
 
 func (c certKey) String() string {
@@ -201,14 +205,32 @@ func (c certKey) String() string {
 	return c.domain
 }
 
+// TLSConfig creates a new TLS config suitable for net/http.Server servers,
+// supporting HTTP/2 and the tls-alpn-01 ACME challenge type.
+func (m *Manager) TLSConfig() *tls.Config {
+	return &tls.Config{
+		GetCertificate: m.GetCertificate,
+		NextProtos: []string{
+			"h2", "http/1.1", // enable HTTP/2
+			acme.ALPNProto, // enable tls-alpn ACME challenges
+		},
+	}
+}
+
 // GetCertificate implements the tls.Config.GetCertificate hook.
 // It provides a TLS certificate for hello.ServerName host, including answering
-// *.acme.invalid (TLS-SNI) challenges. All other fields of hello are ignored.
+// tls-alpn-01 and *.acme.invalid (tls-sni-01 and tls-sni-02) challenges.
+// All other fields of hello are ignored.
 //
 // If m.HostPolicy is non-nil, GetCertificate calls the policy before requesting
 // a new cert. A non-nil error returned from m.HostPolicy halts TLS negotiation.
 // The error is propagated back to the caller of GetCertificate and is user-visible.
 // This does not affect cached certs. See HostPolicy field description for more details.
+//
+// If GetCertificate is used directly, instead of via Manager.TLSConfig, package users will
+// also have to add acme.ALPNProto to NextProtos for tls-alpn-01, or use HTTPHandler
+// for http-01. (The tls-sni-* challenges have been deprecated by popular ACME providers
+// due to security issues in the ecosystem.)
 func (m *Manager) GetCertificate(hello *tls.ClientHelloInfo) (*tls.Certificate, error) {
 	if m.Prompt == nil {
 		return nil, errors.New("acme/autocert: Manager.Prompt not set")
@@ -230,10 +252,13 @@ func (m *Manager) GetCertificate(hello *tls.ClientHelloInfo) (*tls.Certificate,
 	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)
 	defer cancel()
 
-	// check whether this is a token cert requested for TLS-SNI challenge
-	if strings.HasSuffix(name, ".acme.invalid") {
+	// Check whether this is a token cert requested for TLS-SNI or TLS-ALPN challenge.
+	if wantsTokenCert(hello) {
 		m.tokensMu.RLock()
 		defer m.tokensMu.RUnlock()
+		// It's ok to use the same token cert key for both tls-sni and tls-alpn
+		// because there's always at most 1 token cert per on-going domain authorization.
+		// See m.verify for details.
 		if cert := m.certTokens[name]; cert != nil {
 			return cert, nil
 		}
@@ -269,6 +294,17 @@ func (m *Manager) GetCertificate(hello *tls.ClientHelloInfo) (*tls.Certificate,
 	return cert, nil
 }
 
+// wantsTokenCert reports whether a TLS request with SNI is made by a CA server
+// for a challenge verification.
+func wantsTokenCert(hello *tls.ClientHelloInfo) bool {
+	// tls-alpn-01
+	if len(hello.SupportedProtos) == 1 && hello.SupportedProtos[0] == acme.ALPNProto {
+		return true
+	}
+	// tls-sni-xx
+	return strings.HasSuffix(hello.ServerName, ".acme.invalid")
+}
+
 func supportsECDSA(hello *tls.ClientHelloInfo) bool {
 	// The "signature_algorithms" extension, if present, limits the key exchange
 	// algorithms allowed by the cipher suites. See RFC 5246, section 7.4.1.4.1.
@@ -328,8 +364,8 @@ func supportsECDSA(hello *tls.ClientHelloInfo) bool {
 // Because the fallback handler is run with unencrypted port 80 requests,
 // the fallback should not serve TLS-only requests.
 //
-// If HTTPHandler is never called, the Manager will only use TLS SNI
-// challenges for domain verification.
+// If HTTPHandler is never called, the Manager will only use the "tls-alpn-01"
+// challenge for domain verification.
 func (m *Manager) HTTPHandler(fallback http.Handler) http.Handler {
 	m.tokensMu.Lock()
 	defer m.tokensMu.Unlock()
@@ -447,7 +483,7 @@ func (m *Manager) cacheGet(ctx context.Context, ck certKey) (*tls.Certificate, e
 	}
 
 	// verify and create TLS cert
-	leaf, err := validCert(ck, pubDER, privKey)
+	leaf, err := validCert(ck, pubDER, privKey, m.now())
 	if err != nil {
 		return nil, ErrCacheMiss
 	}
@@ -542,7 +578,7 @@ func (m *Manager) createCert(ctx context.Context, ck certKey) (*tls.Certificate,
 			if !ok {
 				return
 			}
-			if _, err := validCert(ck, s.cert, s.key); err == nil {
+			if _, err := validCert(ck, s.cert, s.key, m.now()); err == nil {
 				return
 			}
 			delete(m.state, ck)
@@ -611,7 +647,7 @@ func (m *Manager) authorizedCert(ctx context.Context, key crypto.Signer, ck cert
 	if err != nil {
 		return nil, nil, err
 	}
-	leaf, err = validCert(ck, der, key)
+	leaf, err = validCert(ck, der, key, m.now())
 	if err != nil {
 		return nil, nil, err
 	}
@@ -635,7 +671,7 @@ func (m *Manager) revokePendingAuthz(ctx context.Context, uri []string) {
 func (m *Manager) verify(ctx context.Context, client *acme.Client, domain string) error {
 	// The list of challenge types we'll try to fulfill
 	// in this specific order.
-	challengeTypes := []string{"tls-sni-02", "tls-sni-01"}
+	challengeTypes := []string{"tls-alpn-01", "tls-sni-02", "tls-sni-01"}
 	m.tokensMu.RLock()
 	if m.tryHTTP01 {
 		challengeTypes = append(challengeTypes, "http-01")
@@ -691,7 +727,7 @@ func (m *Manager) verify(ctx context.Context, client *acme.Client, domain string
 			}
 			return errors.New(errorMsg)
 		}
-		cleanup, err := m.fulfill(ctx, client, chal)
+		cleanup, err := m.fulfill(ctx, client, chal, domain)
 		if err != nil {
 			errs[chal] = err
 			continue
@@ -714,8 +750,15 @@ func (m *Manager) verify(ctx context.Context, client *acme.Client, domain string
 
 // fulfill provisions a response to the challenge chal.
 // The cleanup is non-nil only if provisioning succeeded.
-func (m *Manager) fulfill(ctx context.Context, client *acme.Client, chal *acme.Challenge) (cleanup func(), err error) {
+func (m *Manager) fulfill(ctx context.Context, client *acme.Client, chal *acme.Challenge, domain string) (cleanup func(), err error) {
 	switch chal.Type {
+	case "tls-alpn-01":
+		cert, err := client.TLSALPN01ChallengeCert(chal.Token, domain)
+		if err != nil {
+			return nil, err
+		}
+		m.putCertToken(ctx, domain, &cert)
+		return func() { go m.deleteCertToken(domain) }, nil
 	case "tls-sni-01":
 		cert, name, err := client.TLSSNI01ChallengeCert(chal.Token)
 		if err != nil {
@@ -948,6 +991,13 @@ func (m *Manager) renewBefore() time.Duration {
 	return 720 * time.Hour // 30 days
 }
 
+func (m *Manager) now() time.Time {
+	if m.nowFunc != nil {
+		return m.nowFunc()
+	}
+	return time.Now()
+}
+
 // certState is ready when its mutex is unlocked for reading.
 type certState struct {
 	sync.RWMutex
@@ -1014,7 +1064,7 @@ func parsePrivateKey(der []byte) (crypto.Signer, error) {
 // are valid. It doesn't do any revocation checking.
 //
 // The returned value is the verified leaf cert.
-func validCert(ck certKey, der [][]byte, key crypto.Signer) (leaf *x509.Certificate, err error) {
+func validCert(ck certKey, der [][]byte, key crypto.Signer, now time.Time) (leaf *x509.Certificate, err error) {
 	// parse public part(s)
 	var n int
 	for _, b := range der {
@@ -1031,7 +1081,6 @@ func validCert(ck certKey, der [][]byte, key crypto.Signer) (leaf *x509.Certific
 	}
 	// verify the leaf is not expired and matches the domain name
 	leaf = x509Cert[0]
-	now := timeNow()
 	if now.Before(leaf.NotBefore) {
 		return nil, errors.New("acme/autocert: certificate is not valid yet")
 	}
@@ -1085,8 +1134,6 @@ func (r *lockedMathRand) int63n(max int64) int64 {
 
 // For easier testing.
 var (
-	timeNow = time.Now
-
 	// Called when a state is removed.
 	testDidRemoveState = func(certKey) {}
 )
diff --git a/vendor/golang.org/x/crypto/acme/autocert/autocert_test.go b/vendor/golang.org/x/crypto/acme/autocert/autocert_test.go
deleted file mode 100644
index 48ccd35..0000000
--- a/vendor/golang.org/x/crypto/acme/autocert/autocert_test.go
+++ /dev/null
@@ -1,1130 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package autocert
-
-import (
-	"bytes"
-	"context"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"encoding/base64"
-	"encoding/json"
-	"fmt"
-	"html/template"
-	"io"
-	"math/big"
-	"net/http"
-	"net/http/httptest"
-	"reflect"
-	"strings"
-	"sync"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/acme"
-)
-
-var (
-	exampleDomain     = "example.org"
-	exampleCertKey    = certKey{domain: exampleDomain}
-	exampleCertKeyRSA = certKey{domain: exampleDomain, isRSA: true}
-)
-
-var discoTmpl = template.Must(template.New("disco").Parse(`{
-	"new-reg": "{{.}}/new-reg",
-	"new-authz": "{{.}}/new-authz",
-	"new-cert": "{{.}}/new-cert"
-}`))
-
-var authzTmpl = template.Must(template.New("authz").Parse(`{
-	"status": "pending",
-	"challenges": [
-		{
-			"uri": "{{.}}/challenge/1",
-			"type": "tls-sni-01",
-			"token": "token-01"
-		},
-		{
-			"uri": "{{.}}/challenge/2",
-			"type": "tls-sni-02",
-			"token": "token-02"
-		},
-		{
-			"uri": "{{.}}/challenge/dns-01",
-			"type": "dns-01",
-			"token": "token-dns-01"
-		},
-		{
-			"uri": "{{.}}/challenge/http-01",
-			"type": "http-01",
-			"token": "token-http-01"
-		}
-	]
-}`))
-
-type memCache struct {
-	t       *testing.T
-	mu      sync.Mutex
-	keyData map[string][]byte
-}
-
-func (m *memCache) Get(ctx context.Context, key string) ([]byte, error) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	v, ok := m.keyData[key]
-	if !ok {
-		return nil, ErrCacheMiss
-	}
-	return v, nil
-}
-
-// filenameSafe returns whether all characters in s are printable ASCII
-// and safe to use in a filename on most filesystems.
-func filenameSafe(s string) bool {
-	for _, c := range s {
-		if c < 0x20 || c > 0x7E {
-			return false
-		}
-		switch c {
-		case '\\', '/', ':', '*', '?', '"', '<', '>', '|':
-			return false
-		}
-	}
-	return true
-}
-
-func (m *memCache) Put(ctx context.Context, key string, data []byte) error {
-	if !filenameSafe(key) {
-		m.t.Errorf("invalid characters in cache key %q", key)
-	}
-
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	m.keyData[key] = data
-	return nil
-}
-
-func (m *memCache) Delete(ctx context.Context, key string) error {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	delete(m.keyData, key)
-	return nil
-}
-
-func newMemCache(t *testing.T) *memCache {
-	return &memCache{
-		t:       t,
-		keyData: make(map[string][]byte),
-	}
-}
-
-func (m *memCache) numCerts() int {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-
-	res := 0
-	for key := range m.keyData {
-		if strings.HasSuffix(key, "+token") ||
-			strings.HasSuffix(key, "+key") ||
-			strings.HasSuffix(key, "+http-01") {
-			continue
-		}
-		res++
-	}
-	return res
-}
-
-func dummyCert(pub interface{}, san ...string) ([]byte, error) {
-	return dateDummyCert(pub, time.Now(), time.Now().Add(90*24*time.Hour), san...)
-}
-
-func dateDummyCert(pub interface{}, start, end time.Time, san ...string) ([]byte, error) {
-	// use EC key to run faster on 386
-	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		return nil, err
-	}
-	t := &x509.Certificate{
-		SerialNumber:          big.NewInt(1),
-		NotBefore:             start,
-		NotAfter:              end,
-		BasicConstraintsValid: true,
-		KeyUsage:              x509.KeyUsageKeyEncipherment,
-		DNSNames:              san,
-	}
-	if pub == nil {
-		pub = &key.PublicKey
-	}
-	return x509.CreateCertificate(rand.Reader, t, t, pub, key)
-}
-
-func decodePayload(v interface{}, r io.Reader) error {
-	var req struct{ Payload string }
-	if err := json.NewDecoder(r).Decode(&req); err != nil {
-		return err
-	}
-	payload, err := base64.RawURLEncoding.DecodeString(req.Payload)
-	if err != nil {
-		return err
-	}
-	return json.Unmarshal(payload, v)
-}
-
-func clientHelloInfo(sni string, ecdsaSupport bool) *tls.ClientHelloInfo {
-	hello := &tls.ClientHelloInfo{
-		ServerName:   sni,
-		CipherSuites: []uint16{tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305},
-	}
-	if ecdsaSupport {
-		hello.CipherSuites = append(hello.CipherSuites, tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305)
-	}
-	return hello
-}
-
-func TestGetCertificate(t *testing.T) {
-	man := &Manager{Prompt: AcceptTOS}
-	defer man.stopRenew()
-	hello := clientHelloInfo("example.org", true)
-	testGetCertificate(t, man, "example.org", hello)
-}
-
-func TestGetCertificate_trailingDot(t *testing.T) {
-	man := &Manager{Prompt: AcceptTOS}
-	defer man.stopRenew()
-	hello := clientHelloInfo("example.org.", true)
-	testGetCertificate(t, man, "example.org", hello)
-}
-
-func TestGetCertificate_ForceRSA(t *testing.T) {
-	man := &Manager{
-		Prompt:   AcceptTOS,
-		Cache:    newMemCache(t),
-		ForceRSA: true,
-	}
-	defer man.stopRenew()
-	hello := clientHelloInfo(exampleDomain, true)
-	testGetCertificate(t, man, exampleDomain, hello)
-
-	// ForceRSA was deprecated and is now ignored.
-	cert, err := man.cacheGet(context.Background(), exampleCertKey)
-	if err != nil {
-		t.Fatalf("man.cacheGet: %v", err)
-	}
-	if _, ok := cert.PrivateKey.(*ecdsa.PrivateKey); !ok {
-		t.Errorf("cert.PrivateKey is %T; want *ecdsa.PrivateKey", cert.PrivateKey)
-	}
-}
-
-func TestGetCertificate_nilPrompt(t *testing.T) {
-	man := &Manager{}
-	defer man.stopRenew()
-	url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), "example.org")
-	defer finish()
-	man.Client = &acme.Client{DirectoryURL: url}
-	hello := clientHelloInfo("example.org", true)
-	if _, err := man.GetCertificate(hello); err == nil {
-		t.Error("got certificate for example.org; wanted error")
-	}
-}
-
-func TestGetCertificate_expiredCache(t *testing.T) {
-	// Make an expired cert and cache it.
-	pk, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	tmpl := &x509.Certificate{
-		SerialNumber: big.NewInt(1),
-		Subject:      pkix.Name{CommonName: exampleDomain},
-		NotAfter:     time.Now(),
-	}
-	pub, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, &pk.PublicKey, pk)
-	if err != nil {
-		t.Fatal(err)
-	}
-	tlscert := &tls.Certificate{
-		Certificate: [][]byte{pub},
-		PrivateKey:  pk,
-	}
-
-	man := &Manager{Prompt: AcceptTOS, Cache: newMemCache(t)}
-	defer man.stopRenew()
-	if err := man.cachePut(context.Background(), exampleCertKey, tlscert); err != nil {
-		t.Fatalf("man.cachePut: %v", err)
-	}
-
-	// The expired cached cert should trigger a new cert issuance
-	// and return without an error.
-	hello := clientHelloInfo(exampleDomain, true)
-	testGetCertificate(t, man, exampleDomain, hello)
-}
-
-func TestGetCertificate_failedAttempt(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.WriteHeader(http.StatusBadRequest)
-	}))
-	defer ts.Close()
-
-	d := createCertRetryAfter
-	f := testDidRemoveState
-	defer func() {
-		createCertRetryAfter = d
-		testDidRemoveState = f
-	}()
-	createCertRetryAfter = 0
-	done := make(chan struct{})
-	testDidRemoveState = func(ck certKey) {
-		if ck != exampleCertKey {
-			t.Errorf("testDidRemoveState: domain = %v; want %v", ck, exampleCertKey)
-		}
-		close(done)
-	}
-
-	man := &Manager{
-		Prompt: AcceptTOS,
-		Client: &acme.Client{
-			DirectoryURL: ts.URL,
-		},
-	}
-	defer man.stopRenew()
-	hello := clientHelloInfo(exampleDomain, true)
-	if _, err := man.GetCertificate(hello); err == nil {
-		t.Error("GetCertificate: err is nil")
-	}
-	select {
-	case <-time.After(5 * time.Second):
-		t.Errorf("took too long to remove the %q state", exampleCertKey)
-	case <-done:
-		man.stateMu.Lock()
-		defer man.stateMu.Unlock()
-		if v, exist := man.state[exampleCertKey]; exist {
-			t.Errorf("state exists for %v: %+v", exampleCertKey, v)
-		}
-	}
-}
-
-// testGetCertificate_tokenCache tests the fallback of token certificate fetches
-// to cache when Manager.certTokens misses. ecdsaSupport refers to the CA when
-// verifying the certificate token.
-func testGetCertificate_tokenCache(t *testing.T, ecdsaSupport bool) {
-	man1 := &Manager{
-		Cache:  newMemCache(t),
-		Prompt: AcceptTOS,
-	}
-	defer man1.stopRenew()
-	man2 := &Manager{
-		Cache:  man1.Cache,
-		Prompt: AcceptTOS,
-	}
-	defer man2.stopRenew()
-
-	// Send the verification request to a different Manager from the one that
-	// initiated the authorization, when they share caches.
-	url, finish := startACMEServerStub(t, getCertificateFromManager(man2, ecdsaSupport), "example.org")
-	defer finish()
-	man1.Client = &acme.Client{DirectoryURL: url}
-	hello := clientHelloInfo("example.org", true)
-	if _, err := man1.GetCertificate(hello); err != nil {
-		t.Error(err)
-	}
-	if _, err := man2.GetCertificate(hello); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestGetCertificate_tokenCache(t *testing.T) {
-	t.Run("ecdsaSupport=true", func(t *testing.T) {
-		testGetCertificate_tokenCache(t, true)
-	})
-	t.Run("ecdsaSupport=false", func(t *testing.T) {
-		testGetCertificate_tokenCache(t, false)
-	})
-}
-
-func TestGetCertificate_ecdsaVsRSA(t *testing.T) {
-	cache := newMemCache(t)
-	man := &Manager{Prompt: AcceptTOS, Cache: cache}
-	defer man.stopRenew()
-	url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), "example.org")
-	defer finish()
-	man.Client = &acme.Client{DirectoryURL: url}
-
-	cert, err := man.GetCertificate(clientHelloInfo("example.org", true))
-	if err != nil {
-		t.Error(err)
-	}
-	if _, ok := cert.Leaf.PublicKey.(*ecdsa.PublicKey); !ok {
-		t.Error("an ECDSA client was served a non-ECDSA certificate")
-	}
-
-	cert, err = man.GetCertificate(clientHelloInfo("example.org", false))
-	if err != nil {
-		t.Error(err)
-	}
-	if _, ok := cert.Leaf.PublicKey.(*rsa.PublicKey); !ok {
-		t.Error("a RSA client was served a non-RSA certificate")
-	}
-
-	if _, err := man.GetCertificate(clientHelloInfo("example.org", true)); err != nil {
-		t.Error(err)
-	}
-	if _, err := man.GetCertificate(clientHelloInfo("example.org", false)); err != nil {
-		t.Error(err)
-	}
-	if numCerts := cache.numCerts(); numCerts != 2 {
-		t.Errorf("found %d certificates in cache; want %d", numCerts, 2)
-	}
-}
-
-func TestGetCertificate_wrongCacheKeyType(t *testing.T) {
-	cache := newMemCache(t)
-	man := &Manager{Prompt: AcceptTOS, Cache: cache}
-	defer man.stopRenew()
-	url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), exampleDomain)
-	defer finish()
-	man.Client = &acme.Client{DirectoryURL: url}
-
-	// Make an RSA cert and cache it without suffix.
-	pk, err := rsa.GenerateKey(rand.Reader, 512)
-	if err != nil {
-		t.Fatal(err)
-	}
-	tmpl := &x509.Certificate{
-		SerialNumber: big.NewInt(1),
-		Subject:      pkix.Name{CommonName: exampleDomain},
-		NotAfter:     time.Now().Add(90 * 24 * time.Hour),
-	}
-	pub, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, &pk.PublicKey, pk)
-	if err != nil {
-		t.Fatal(err)
-	}
-	rsaCert := &tls.Certificate{
-		Certificate: [][]byte{pub},
-		PrivateKey:  pk,
-	}
-	if err := man.cachePut(context.Background(), exampleCertKey, rsaCert); err != nil {
-		t.Fatalf("man.cachePut: %v", err)
-	}
-
-	// The RSA cached cert should be silently ignored and replaced.
-	cert, err := man.GetCertificate(clientHelloInfo(exampleDomain, true))
-	if err != nil {
-		t.Error(err)
-	}
-	if _, ok := cert.Leaf.PublicKey.(*ecdsa.PublicKey); !ok {
-		t.Error("an ECDSA client was served a non-ECDSA certificate")
-	}
-	if numCerts := cache.numCerts(); numCerts != 1 {
-		t.Errorf("found %d certificates in cache; want %d", numCerts, 1)
-	}
-}
-
-func getCertificateFromManager(man *Manager, ecdsaSupport bool) func(string) error {
-	return func(sni string) error {
-		_, err := man.GetCertificate(clientHelloInfo(sni, ecdsaSupport))
-		return err
-	}
-}
-
-// startACMEServerStub runs an ACME server
-// The domain argument is the expected domain name of a certificate request.
-func startACMEServerStub(t *testing.T, getCertificate func(string) error, domain string) (url string, finish func()) {
-	// echo token-02 | shasum -a 256
-	// then divide result in 2 parts separated by dot
-	tokenCertName := "4e8eb87631187e9ff2153b56b13a4dec.13a35d002e485d60ff37354b32f665d9.token.acme.invalid"
-	verifyTokenCert := func() {
-		if err := getCertificate(tokenCertName); err != nil {
-			t.Errorf("verifyTokenCert: GetCertificate(%q): %v", tokenCertName, err)
-			return
-		}
-	}
-
-	// ACME CA server stub
-	var ca *httptest.Server
-	ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "nonce")
-		if r.Method == "HEAD" {
-			// a nonce request
-			return
-		}
-
-		switch r.URL.Path {
-		// discovery
-		case "/":
-			if err := discoTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("discoTmpl: %v", err)
-			}
-		// client key registration
-		case "/new-reg":
-			w.Write([]byte("{}"))
-		// domain authorization
-		case "/new-authz":
-			w.Header().Set("Location", ca.URL+"/authz/1")
-			w.WriteHeader(http.StatusCreated)
-			if err := authzTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("authzTmpl: %v", err)
-			}
-		// accept tls-sni-02 challenge
-		case "/challenge/2":
-			verifyTokenCert()
-			w.Write([]byte("{}"))
-		// authorization status
-		case "/authz/1":
-			w.Write([]byte(`{"status": "valid"}`))
-		// cert request
-		case "/new-cert":
-			var req struct {
-				CSR string `json:"csr"`
-			}
-			decodePayload(&req, r.Body)
-			b, _ := base64.RawURLEncoding.DecodeString(req.CSR)
-			csr, err := x509.ParseCertificateRequest(b)
-			if err != nil {
-				t.Errorf("new-cert: CSR: %v", err)
-			}
-			if csr.Subject.CommonName != domain {
-				t.Errorf("CommonName in CSR = %q; want %q", csr.Subject.CommonName, domain)
-			}
-			der, err := dummyCert(csr.PublicKey, domain)
-			if err != nil {
-				t.Errorf("new-cert: dummyCert: %v", err)
-			}
-			chainUp := fmt.Sprintf("<%s/ca-cert>; rel=up", ca.URL)
-			w.Header().Set("Link", chainUp)
-			w.WriteHeader(http.StatusCreated)
-			w.Write(der)
-		// CA chain cert
-		case "/ca-cert":
-			der, err := dummyCert(nil, "ca")
-			if err != nil {
-				t.Errorf("ca-cert: dummyCert: %v", err)
-			}
-			w.Write(der)
-		default:
-			t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
-		}
-	}))
-	finish = func() {
-		ca.Close()
-
-		// make sure token cert was removed
-		cancel := make(chan struct{})
-		done := make(chan struct{})
-		go func() {
-			defer close(done)
-			tick := time.NewTicker(100 * time.Millisecond)
-			defer tick.Stop()
-			for {
-				if err := getCertificate(tokenCertName); err != nil {
-					return
-				}
-				select {
-				case <-tick.C:
-				case <-cancel:
-					return
-				}
-			}
-		}()
-		select {
-		case <-done:
-		case <-time.After(5 * time.Second):
-			close(cancel)
-			t.Error("token cert was not removed")
-			<-done
-		}
-	}
-	return ca.URL, finish
-}
-
-// tests man.GetCertificate flow using the provided hello argument.
-// The domain argument is the expected domain name of a certificate request.
-func testGetCertificate(t *testing.T, man *Manager, domain string, hello *tls.ClientHelloInfo) {
-	url, finish := startACMEServerStub(t, getCertificateFromManager(man, true), domain)
-	defer finish()
-	man.Client = &acme.Client{DirectoryURL: url}
-
-	// simulate tls.Config.GetCertificate
-	var tlscert *tls.Certificate
-	var err error
-	done := make(chan struct{})
-	go func() {
-		tlscert, err = man.GetCertificate(hello)
-		close(done)
-	}()
-	select {
-	case <-time.After(time.Minute):
-		t.Fatal("man.GetCertificate took too long to return")
-	case <-done:
-	}
-	if err != nil {
-		t.Fatalf("man.GetCertificate: %v", err)
-	}
-
-	// verify the tlscert is the same we responded with from the CA stub
-	if len(tlscert.Certificate) == 0 {
-		t.Fatal("len(tlscert.Certificate) is 0")
-	}
-	cert, err := x509.ParseCertificate(tlscert.Certificate[0])
-	if err != nil {
-		t.Fatalf("x509.ParseCertificate: %v", err)
-	}
-	if len(cert.DNSNames) == 0 || cert.DNSNames[0] != domain {
-		t.Errorf("cert.DNSNames = %v; want %q", cert.DNSNames, domain)
-	}
-
-}
-
-func TestVerifyHTTP01(t *testing.T) {
-	var (
-		http01 http.Handler
-
-		authzCount      int // num. of created authorizations
-		didAcceptHTTP01 bool
-	)
-
-	verifyHTTPToken := func() {
-		r := httptest.NewRequest("GET", "/.well-known/acme-challenge/token-http-01", nil)
-		w := httptest.NewRecorder()
-		http01.ServeHTTP(w, r)
-		if w.Code != http.StatusOK {
-			t.Errorf("http token: w.Code = %d; want %d", w.Code, http.StatusOK)
-		}
-		if v := w.Body.String(); !strings.HasPrefix(v, "token-http-01.") {
-			t.Errorf("http token value = %q; want 'token-http-01.' prefix", v)
-		}
-	}
-
-	// ACME CA server stub, only the needed bits.
-	// TODO: Merge this with startACMEServerStub, making it a configurable CA for testing.
-	var ca *httptest.Server
-	ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "nonce")
-		if r.Method == "HEAD" {
-			// a nonce request
-			return
-		}
-
-		switch r.URL.Path {
-		// Discovery.
-		case "/":
-			if err := discoTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("discoTmpl: %v", err)
-			}
-		// Client key registration.
-		case "/new-reg":
-			w.Write([]byte("{}"))
-		// New domain authorization.
-		case "/new-authz":
-			authzCount++
-			w.Header().Set("Location", fmt.Sprintf("%s/authz/%d", ca.URL, authzCount))
-			w.WriteHeader(http.StatusCreated)
-			if err := authzTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("authzTmpl: %v", err)
-			}
-		// Accept tls-sni-02.
-		case "/challenge/2":
-			w.Write([]byte("{}"))
-		// Reject tls-sni-01.
-		case "/challenge/1":
-			http.Error(w, "won't accept tls-sni-01", http.StatusBadRequest)
-		// Should not accept dns-01.
-		case "/challenge/dns-01":
-			t.Errorf("dns-01 challenge was accepted")
-			http.Error(w, "won't accept dns-01", http.StatusBadRequest)
-		// Accept http-01.
-		case "/challenge/http-01":
-			didAcceptHTTP01 = true
-			verifyHTTPToken()
-			w.Write([]byte("{}"))
-		// Authorization statuses.
-		// Make tls-sni-xxx invalid.
-		case "/authz/1", "/authz/2":
-			w.Write([]byte(`{"status": "invalid"}`))
-		case "/authz/3", "/authz/4":
-			w.Write([]byte(`{"status": "valid"}`))
-		default:
-			http.NotFound(w, r)
-			t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
-		}
-	}))
-	defer ca.Close()
-
-	m := &Manager{
-		Client: &acme.Client{
-			DirectoryURL: ca.URL,
-		},
-	}
-	http01 = m.HTTPHandler(nil)
-	ctx := context.Background()
-	client, err := m.acmeClient(ctx)
-	if err != nil {
-		t.Fatalf("m.acmeClient: %v", err)
-	}
-	if err := m.verify(ctx, client, "example.org"); err != nil {
-		t.Errorf("m.verify: %v", err)
-	}
-	// Only tls-sni-01, tls-sni-02 and http-01 must be accepted
-	// The dns-01 challenge is unsupported.
-	if authzCount != 3 {
-		t.Errorf("authzCount = %d; want 3", authzCount)
-	}
-	if !didAcceptHTTP01 {
-		t.Error("did not accept http-01 challenge")
-	}
-}
-
-func TestRevokeFailedAuthz(t *testing.T) {
-	// Prefill authorization URIs expected to be revoked.
-	// The challenges are selected in a specific order,
-	// each tried within a newly created authorization.
-	// This means each authorization URI corresponds to a different challenge type.
-	revokedAuthz := map[string]bool{
-		"/authz/0": false, // tls-sni-02
-		"/authz/1": false, // tls-sni-01
-		"/authz/2": false, // no viable challenge, but authz is created
-	}
-
-	var authzCount int          // num. of created authorizations
-	var revokeCount int         // num. of revoked authorizations
-	done := make(chan struct{}) // closed when revokeCount is 3
-
-	// ACME CA server stub, only the needed bits.
-	// TODO: Merge this with startACMEServerStub, making it a configurable CA for testing.
-	var ca *httptest.Server
-	ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "nonce")
-		if r.Method == "HEAD" {
-			// a nonce request
-			return
-		}
-
-		switch r.URL.Path {
-		// Discovery.
-		case "/":
-			if err := discoTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("discoTmpl: %v", err)
-			}
-		// Client key registration.
-		case "/new-reg":
-			w.Write([]byte("{}"))
-		// New domain authorization.
-		case "/new-authz":
-			w.Header().Set("Location", fmt.Sprintf("%s/authz/%d", ca.URL, authzCount))
-			w.WriteHeader(http.StatusCreated)
-			if err := authzTmpl.Execute(w, ca.URL); err != nil {
-				t.Errorf("authzTmpl: %v", err)
-			}
-			authzCount++
-		// tls-sni-02 challenge "accept" request.
-		case "/challenge/2":
-			// Refuse.
-			http.Error(w, "won't accept tls-sni-02 challenge", http.StatusBadRequest)
-		// tls-sni-01 challenge "accept" request.
-		case "/challenge/1":
-			// Accept but the authorization will be "expired".
-			w.Write([]byte("{}"))
-		// Authorization requests.
-		case "/authz/0", "/authz/1", "/authz/2":
-			// Revocation requests.
-			if r.Method == "POST" {
-				var req struct{ Status string }
-				if err := decodePayload(&req, r.Body); err != nil {
-					t.Errorf("%s: decodePayload: %v", r.URL, err)
-				}
-				switch req.Status {
-				case "deactivated":
-					revokedAuthz[r.URL.Path] = true
-					revokeCount++
-					if revokeCount >= 3 {
-						// Last authorization is revoked.
-						defer close(done)
-					}
-				default:
-					t.Errorf("%s: req.Status = %q; want 'deactivated'", r.URL, req.Status)
-				}
-				w.Write([]byte(`{"status": "invalid"}`))
-				return
-			}
-			// Authorization status requests.
-			// Simulate abandoned authorization, deleted by the CA.
-			w.WriteHeader(http.StatusNotFound)
-		default:
-			http.NotFound(w, r)
-			t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
-		}
-	}))
-	defer ca.Close()
-
-	m := &Manager{
-		Client: &acme.Client{DirectoryURL: ca.URL},
-	}
-	// Should fail and revoke 3 authorizations.
-	// The first 2 are tsl-sni-02 and tls-sni-01 challenges.
-	// The third time an authorization is created but no viable challenge is found.
-	// See revokedAuthz above for more explanation.
-	if _, err := m.createCert(context.Background(), exampleCertKey); err == nil {
-		t.Errorf("m.createCert returned nil error")
-	}
-	select {
-	case <-time.After(3 * time.Second):
-		t.Error("revocations took too long")
-	case <-done:
-		// revokeCount is at least 3.
-	}
-	for uri, ok := range revokedAuthz {
-		if !ok {
-			t.Errorf("%q authorization was not revoked", uri)
-		}
-	}
-}
-
-func TestHTTPHandlerDefaultFallback(t *testing.T) {
-	tt := []struct {
-		method, url  string
-		wantCode     int
-		wantLocation string
-	}{
-		{"GET", "http://example.org", 302, "https://example.org/"},
-		{"GET", "http://example.org/foo", 302, "https://example.org/foo"},
-		{"GET", "http://example.org/foo/bar/", 302, "https://example.org/foo/bar/"},
-		{"GET", "http://example.org/?a=b", 302, "https://example.org/?a=b"},
-		{"GET", "http://example.org/foo?a=b", 302, "https://example.org/foo?a=b"},
-		{"GET", "http://example.org:80/foo?a=b", 302, "https://example.org:443/foo?a=b"},
-		{"GET", "http://example.org:80/foo%20bar", 302, "https://example.org:443/foo%20bar"},
-		{"GET", "http://[2602:d1:xxxx::c60a]:1234", 302, "https://[2602:d1:xxxx::c60a]:443/"},
-		{"GET", "http://[2602:d1:xxxx::c60a]", 302, "https://[2602:d1:xxxx::c60a]/"},
-		{"GET", "http://[2602:d1:xxxx::c60a]/foo?a=b", 302, "https://[2602:d1:xxxx::c60a]/foo?a=b"},
-		{"HEAD", "http://example.org", 302, "https://example.org/"},
-		{"HEAD", "http://example.org/foo", 302, "https://example.org/foo"},
-		{"HEAD", "http://example.org/foo/bar/", 302, "https://example.org/foo/bar/"},
-		{"HEAD", "http://example.org/?a=b", 302, "https://example.org/?a=b"},
-		{"HEAD", "http://example.org/foo?a=b", 302, "https://example.org/foo?a=b"},
-		{"POST", "http://example.org", 400, ""},
-		{"PUT", "http://example.org", 400, ""},
-		{"GET", "http://example.org/.well-known/acme-challenge/x", 404, ""},
-	}
-	var m Manager
-	h := m.HTTPHandler(nil)
-	for i, test := range tt {
-		r := httptest.NewRequest(test.method, test.url, nil)
-		w := httptest.NewRecorder()
-		h.ServeHTTP(w, r)
-		if w.Code != test.wantCode {
-			t.Errorf("%d: w.Code = %d; want %d", i, w.Code, test.wantCode)
-			t.Errorf("%d: body: %s", i, w.Body.Bytes())
-		}
-		if v := w.Header().Get("Location"); v != test.wantLocation {
-			t.Errorf("%d: Location = %q; want %q", i, v, test.wantLocation)
-		}
-	}
-}
-
-func TestAccountKeyCache(t *testing.T) {
-	m := Manager{Cache: newMemCache(t)}
-	ctx := context.Background()
-	k1, err := m.accountKey(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	k2, err := m.accountKey(ctx)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !reflect.DeepEqual(k1, k2) {
-		t.Errorf("account keys don't match: k1 = %#v; k2 = %#v", k1, k2)
-	}
-}
-
-func TestCache(t *testing.T) {
-	ecdsaKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert, err := dummyCert(ecdsaKey.Public(), exampleDomain)
-	if err != nil {
-		t.Fatal(err)
-	}
-	ecdsaCert := &tls.Certificate{
-		Certificate: [][]byte{cert},
-		PrivateKey:  ecdsaKey,
-	}
-
-	rsaKey, err := rsa.GenerateKey(rand.Reader, 512)
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert, err = dummyCert(rsaKey.Public(), exampleDomain)
-	if err != nil {
-		t.Fatal(err)
-	}
-	rsaCert := &tls.Certificate{
-		Certificate: [][]byte{cert},
-		PrivateKey:  rsaKey,
-	}
-
-	man := &Manager{Cache: newMemCache(t)}
-	defer man.stopRenew()
-	ctx := context.Background()
-
-	if err := man.cachePut(ctx, exampleCertKey, ecdsaCert); err != nil {
-		t.Fatalf("man.cachePut: %v", err)
-	}
-	if err := man.cachePut(ctx, exampleCertKeyRSA, rsaCert); err != nil {
-		t.Fatalf("man.cachePut: %v", err)
-	}
-
-	res, err := man.cacheGet(ctx, exampleCertKey)
-	if err != nil {
-		t.Fatalf("man.cacheGet: %v", err)
-	}
-	if res == nil || !bytes.Equal(res.Certificate[0], ecdsaCert.Certificate[0]) {
-		t.Errorf("man.cacheGet = %+v; want %+v", res, ecdsaCert)
-	}
-
-	res, err = man.cacheGet(ctx, exampleCertKeyRSA)
-	if err != nil {
-		t.Fatalf("man.cacheGet: %v", err)
-	}
-	if res == nil || !bytes.Equal(res.Certificate[0], rsaCert.Certificate[0]) {
-		t.Errorf("man.cacheGet = %+v; want %+v", res, rsaCert)
-	}
-}
-
-func TestHostWhitelist(t *testing.T) {
-	policy := HostWhitelist("example.com", "example.org", "*.example.net")
-	tt := []struct {
-		host  string
-		allow bool
-	}{
-		{"example.com", true},
-		{"example.org", true},
-		{"one.example.com", false},
-		{"two.example.org", false},
-		{"three.example.net", false},
-		{"dummy", false},
-	}
-	for i, test := range tt {
-		err := policy(nil, test.host)
-		if err != nil && test.allow {
-			t.Errorf("%d: policy(%q): %v; want nil", i, test.host, err)
-		}
-		if err == nil && !test.allow {
-			t.Errorf("%d: policy(%q): nil; want an error", i, test.host)
-		}
-	}
-}
-
-func TestValidCert(t *testing.T) {
-	key1, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	key2, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	key3, err := rsa.GenerateKey(rand.Reader, 512)
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert1, err := dummyCert(key1.Public(), "example.org")
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert2, err := dummyCert(key2.Public(), "example.org")
-	if err != nil {
-		t.Fatal(err)
-	}
-	cert3, err := dummyCert(key3.Public(), "example.org")
-	if err != nil {
-		t.Fatal(err)
-	}
-	now := time.Now()
-	early, err := dateDummyCert(key1.Public(), now.Add(time.Hour), now.Add(2*time.Hour), "example.org")
-	if err != nil {
-		t.Fatal(err)
-	}
-	expired, err := dateDummyCert(key1.Public(), now.Add(-2*time.Hour), now.Add(-time.Hour), "example.org")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	tt := []struct {
-		ck   certKey
-		key  crypto.Signer
-		cert [][]byte
-		ok   bool
-	}{
-		{certKey{domain: "example.org"}, key1, [][]byte{cert1}, true},
-		{certKey{domain: "example.org", isRSA: true}, key3, [][]byte{cert3}, true},
-		{certKey{domain: "example.org"}, key1, [][]byte{cert1, cert2, cert3}, true},
-		{certKey{domain: "example.org"}, key1, [][]byte{cert1, {1}}, false},
-		{certKey{domain: "example.org"}, key1, [][]byte{{1}}, false},
-		{certKey{domain: "example.org"}, key1, [][]byte{cert2}, false},
-		{certKey{domain: "example.org"}, key2, [][]byte{cert1}, false},
-		{certKey{domain: "example.org"}, key1, [][]byte{cert3}, false},
-		{certKey{domain: "example.org"}, key3, [][]byte{cert1}, false},
-		{certKey{domain: "example.net"}, key1, [][]byte{cert1}, false},
-		{certKey{domain: "example.org"}, key1, [][]byte{early}, false},
-		{certKey{domain: "example.org"}, key1, [][]byte{expired}, false},
-		{certKey{domain: "example.org", isRSA: true}, key1, [][]byte{cert1}, false},
-		{certKey{domain: "example.org"}, key3, [][]byte{cert3}, false},
-	}
-	for i, test := range tt {
-		leaf, err := validCert(test.ck, test.cert, test.key)
-		if err != nil && test.ok {
-			t.Errorf("%d: err = %v", i, err)
-		}
-		if err == nil && !test.ok {
-			t.Errorf("%d: err is nil", i)
-		}
-		if err == nil && test.ok && leaf == nil {
-			t.Errorf("%d: leaf is nil", i)
-		}
-	}
-}
-
-type cacheGetFunc func(ctx context.Context, key string) ([]byte, error)
-
-func (f cacheGetFunc) Get(ctx context.Context, key string) ([]byte, error) {
-	return f(ctx, key)
-}
-
-func (f cacheGetFunc) Put(ctx context.Context, key string, data []byte) error {
-	return fmt.Errorf("unsupported Put of %q = %q", key, data)
-}
-
-func (f cacheGetFunc) Delete(ctx context.Context, key string) error {
-	return fmt.Errorf("unsupported Delete of %q", key)
-}
-
-func TestManagerGetCertificateBogusSNI(t *testing.T) {
-	m := Manager{
-		Prompt: AcceptTOS,
-		Cache: cacheGetFunc(func(ctx context.Context, key string) ([]byte, error) {
-			return nil, fmt.Errorf("cache.Get of %s", key)
-		}),
-	}
-	tests := []struct {
-		name    string
-		wantErr string
-	}{
-		{"foo.com", "cache.Get of foo.com"},
-		{"foo.com.", "cache.Get of foo.com"},
-		{`a\b.com`, "acme/autocert: server name contains invalid character"},
-		{`a/b.com`, "acme/autocert: server name contains invalid character"},
-		{"", "acme/autocert: missing server name"},
-		{"foo", "acme/autocert: server name component count invalid"},
-		{".foo", "acme/autocert: server name component count invalid"},
-		{"foo.", "acme/autocert: server name component count invalid"},
-		{"fo.o", "cache.Get of fo.o"},
-	}
-	for _, tt := range tests {
-		_, err := m.GetCertificate(clientHelloInfo(tt.name, true))
-		got := fmt.Sprint(err)
-		if got != tt.wantErr {
-			t.Errorf("GetCertificate(SNI = %q) = %q; want %q", tt.name, got, tt.wantErr)
-		}
-	}
-}
-
-func TestCertRequest(t *testing.T) {
-	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	// An extension from RFC7633. Any will do.
-	ext := pkix.Extension{
-		Id:    asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 1},
-		Value: []byte("dummy"),
-	}
-	b, err := certRequest(key, "example.org", []pkix.Extension{ext}, "san.example.org")
-	if err != nil {
-		t.Fatalf("certRequest: %v", err)
-	}
-	r, err := x509.ParseCertificateRequest(b)
-	if err != nil {
-		t.Fatalf("ParseCertificateRequest: %v", err)
-	}
-	var found bool
-	for _, v := range r.Extensions {
-		if v.Id.Equal(ext.Id) {
-			found = true
-			break
-		}
-	}
-	if !found {
-		t.Errorf("want %v in Extensions: %v", ext, r.Extensions)
-	}
-}
-
-func TestSupportsECDSA(t *testing.T) {
-	tests := []struct {
-		CipherSuites     []uint16
-		SignatureSchemes []tls.SignatureScheme
-		SupportedCurves  []tls.CurveID
-		ecdsaOk          bool
-	}{
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-		}, nil, nil, false},
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		}, nil, nil, true},
-
-		// SignatureSchemes limits, not extends, CipherSuites
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-		}, []tls.SignatureScheme{
-			tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
-		}, nil, false},
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		}, []tls.SignatureScheme{
-			tls.PKCS1WithSHA256,
-		}, nil, false},
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		}, []tls.SignatureScheme{
-			tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
-		}, nil, true},
-
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		}, []tls.SignatureScheme{
-			tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
-		}, []tls.CurveID{
-			tls.CurveP521,
-		}, false},
-		{[]uint16{
-			tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-		}, []tls.SignatureScheme{
-			tls.PKCS1WithSHA256, tls.ECDSAWithP256AndSHA256,
-		}, []tls.CurveID{
-			tls.CurveP256,
-			tls.CurveP521,
-		}, true},
-	}
-	for i, tt := range tests {
-		result := supportsECDSA(&tls.ClientHelloInfo{
-			CipherSuites:     tt.CipherSuites,
-			SignatureSchemes: tt.SignatureSchemes,
-			SupportedCurves:  tt.SupportedCurves,
-		})
-		if result != tt.ecdsaOk {
-			t.Errorf("%d: supportsECDSA = %v; want %v", i, result, tt.ecdsaOk)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/autocert/cache_test.go b/vendor/golang.org/x/crypto/acme/autocert/cache_test.go
deleted file mode 100644
index 653b05b..0000000
--- a/vendor/golang.org/x/crypto/acme/autocert/cache_test.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package autocert
-
-import (
-	"context"
-	"io/ioutil"
-	"os"
-	"path/filepath"
-	"reflect"
-	"testing"
-)
-
-// make sure DirCache satisfies Cache interface
-var _ Cache = DirCache("/")
-
-func TestDirCache(t *testing.T) {
-	dir, err := ioutil.TempDir("", "autocert")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.RemoveAll(dir)
-	dir = filepath.Join(dir, "certs") // a nonexistent dir
-	cache := DirCache(dir)
-	ctx := context.Background()
-
-	// test cache miss
-	if _, err := cache.Get(ctx, "nonexistent"); err != ErrCacheMiss {
-		t.Errorf("get: %v; want ErrCacheMiss", err)
-	}
-
-	// test put/get
-	b1 := []byte{1}
-	if err := cache.Put(ctx, "dummy", b1); err != nil {
-		t.Fatalf("put: %v", err)
-	}
-	b2, err := cache.Get(ctx, "dummy")
-	if err != nil {
-		t.Fatalf("get: %v", err)
-	}
-	if !reflect.DeepEqual(b1, b2) {
-		t.Errorf("b1 = %v; want %v", b1, b2)
-	}
-	name := filepath.Join(dir, "dummy")
-	if _, err := os.Stat(name); err != nil {
-		t.Error(err)
-	}
-
-	// test delete
-	if err := cache.Delete(ctx, "dummy"); err != nil {
-		t.Fatalf("delete: %v", err)
-	}
-	if _, err := cache.Get(ctx, "dummy"); err != ErrCacheMiss {
-		t.Errorf("get: %v; want ErrCacheMiss", err)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/autocert/example_test.go b/vendor/golang.org/x/crypto/acme/autocert/example_test.go
deleted file mode 100644
index 552a625..0000000
--- a/vendor/golang.org/x/crypto/acme/autocert/example_test.go
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package autocert_test
-
-import (
-	"crypto/tls"
-	"fmt"
-	"log"
-	"net/http"
-
-	"golang.org/x/crypto/acme/autocert"
-)
-
-func ExampleNewListener() {
-	mux := http.NewServeMux()
-	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		fmt.Fprintf(w, "Hello, TLS user! Your config: %+v", r.TLS)
-	})
-	log.Fatal(http.Serve(autocert.NewListener("example.com"), mux))
-}
-
-func ExampleManager() {
-	m := &autocert.Manager{
-		Cache:      autocert.DirCache("secret-dir"),
-		Prompt:     autocert.AcceptTOS,
-		HostPolicy: autocert.HostWhitelist("example.org"),
-	}
-	go http.ListenAndServe(":http", m.HTTPHandler(nil))
-	s := &http.Server{
-		Addr:      ":https",
-		TLSConfig: &tls.Config{GetCertificate: m.GetCertificate},
-	}
-	s.ListenAndServeTLS("", "")
-}
diff --git a/vendor/golang.org/x/crypto/acme/autocert/listener.go b/vendor/golang.org/x/crypto/acme/autocert/listener.go
index d744df0..1e06981 100644
--- a/vendor/golang.org/x/crypto/acme/autocert/listener.go
+++ b/vendor/golang.org/x/crypto/acme/autocert/listener.go
@@ -72,11 +72,8 @@ func NewListener(domains ...string) net.Listener {
 // the Manager m's Prompt, Cache, HostPolicy, and other desired options.
 func (m *Manager) Listener() net.Listener {
 	ln := &listener{
-		m: m,
-		conf: &tls.Config{
-			GetCertificate: m.GetCertificate,           // bonus: panic on nil m
-			NextProtos:     []string{"h2", "http/1.1"}, // Enable HTTP/2
-		},
+		m:    m,
+		conf: m.TLSConfig(),
 	}
 	ln.tcpListener, ln.tcpListenErr = net.Listen("tcp", ":443")
 	return ln
diff --git a/vendor/golang.org/x/crypto/acme/autocert/renewal.go b/vendor/golang.org/x/crypto/acme/autocert/renewal.go
index ef3e44e..665f870 100644
--- a/vendor/golang.org/x/crypto/acme/autocert/renewal.go
+++ b/vendor/golang.org/x/crypto/acme/autocert/renewal.go
@@ -128,7 +128,7 @@ func (dr *domainRenewal) do(ctx context.Context) (time.Duration, error) {
 }
 
 func (dr *domainRenewal) next(expiry time.Time) time.Duration {
-	d := expiry.Sub(timeNow()) - dr.m.renewBefore()
+	d := expiry.Sub(dr.m.now()) - dr.m.renewBefore()
 	// add a bit of randomness to renew deadline
 	n := pseudoRand.int63n(int64(renewJitter))
 	d -= time.Duration(n)
diff --git a/vendor/golang.org/x/crypto/acme/autocert/renewal_test.go b/vendor/golang.org/x/crypto/acme/autocert/renewal_test.go
deleted file mode 100644
index 634305a..0000000
--- a/vendor/golang.org/x/crypto/acme/autocert/renewal_test.go
+++ /dev/null
@@ -1,329 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package autocert
-
-import (
-	"context"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/base64"
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/acme"
-)
-
-func TestRenewalNext(t *testing.T) {
-	now := time.Now()
-	timeNow = func() time.Time { return now }
-	defer func() { timeNow = time.Now }()
-
-	man := &Manager{RenewBefore: 7 * 24 * time.Hour}
-	defer man.stopRenew()
-	tt := []struct {
-		expiry   time.Time
-		min, max time.Duration
-	}{
-		{now.Add(90 * 24 * time.Hour), 83*24*time.Hour - renewJitter, 83 * 24 * time.Hour},
-		{now.Add(time.Hour), 0, 1},
-		{now, 0, 1},
-		{now.Add(-time.Hour), 0, 1},
-	}
-
-	dr := &domainRenewal{m: man}
-	for i, test := range tt {
-		next := dr.next(test.expiry)
-		if next < test.min || test.max < next {
-			t.Errorf("%d: next = %v; want between %v and %v", i, next, test.min, test.max)
-		}
-	}
-}
-
-func TestRenewFromCache(t *testing.T) {
-	// ACME CA server stub
-	var ca *httptest.Server
-	ca = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "nonce")
-		if r.Method == "HEAD" {
-			// a nonce request
-			return
-		}
-
-		switch r.URL.Path {
-		// discovery
-		case "/":
-			if err := discoTmpl.Execute(w, ca.URL); err != nil {
-				t.Fatalf("discoTmpl: %v", err)
-			}
-		// client key registration
-		case "/new-reg":
-			w.Write([]byte("{}"))
-		// domain authorization
-		case "/new-authz":
-			w.Header().Set("Location", ca.URL+"/authz/1")
-			w.WriteHeader(http.StatusCreated)
-			w.Write([]byte(`{"status": "valid"}`))
-		// cert request
-		case "/new-cert":
-			var req struct {
-				CSR string `json:"csr"`
-			}
-			decodePayload(&req, r.Body)
-			b, _ := base64.RawURLEncoding.DecodeString(req.CSR)
-			csr, err := x509.ParseCertificateRequest(b)
-			if err != nil {
-				t.Fatalf("new-cert: CSR: %v", err)
-			}
-			der, err := dummyCert(csr.PublicKey, exampleDomain)
-			if err != nil {
-				t.Fatalf("new-cert: dummyCert: %v", err)
-			}
-			chainUp := fmt.Sprintf("<%s/ca-cert>; rel=up", ca.URL)
-			w.Header().Set("Link", chainUp)
-			w.WriteHeader(http.StatusCreated)
-			w.Write(der)
-		// CA chain cert
-		case "/ca-cert":
-			der, err := dummyCert(nil, "ca")
-			if err != nil {
-				t.Fatalf("ca-cert: dummyCert: %v", err)
-			}
-			w.Write(der)
-		default:
-			t.Errorf("unrecognized r.URL.Path: %s", r.URL.Path)
-		}
-	}))
-	defer ca.Close()
-
-	man := &Manager{
-		Prompt:      AcceptTOS,
-		Cache:       newMemCache(t),
-		RenewBefore: 24 * time.Hour,
-		Client: &acme.Client{
-			DirectoryURL: ca.URL,
-		},
-	}
-	defer man.stopRenew()
-
-	// cache an almost expired cert
-	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	now := time.Now()
-	cert, err := dateDummyCert(key.Public(), now.Add(-2*time.Hour), now.Add(time.Minute), exampleDomain)
-	if err != nil {
-		t.Fatal(err)
-	}
-	tlscert := &tls.Certificate{PrivateKey: key, Certificate: [][]byte{cert}}
-	if err := man.cachePut(context.Background(), exampleCertKey, tlscert); err != nil {
-		t.Fatal(err)
-	}
-
-	// veriy the renewal happened
-	defer func() {
-		testDidRenewLoop = func(next time.Duration, err error) {}
-	}()
-	done := make(chan struct{})
-	testDidRenewLoop = func(next time.Duration, err error) {
-		defer close(done)
-		if err != nil {
-			t.Errorf("testDidRenewLoop: %v", err)
-		}
-		// Next should be about 90 days:
-		// dummyCert creates 90days expiry + account for man.RenewBefore.
-		// Previous expiration was within 1 min.
-		future := 88 * 24 * time.Hour
-		if next < future {
-			t.Errorf("testDidRenewLoop: next = %v; want >= %v", next, future)
-		}
-
-		// ensure the new cert is cached
-		after := time.Now().Add(future)
-		tlscert, err := man.cacheGet(context.Background(), exampleCertKey)
-		if err != nil {
-			t.Fatalf("man.cacheGet: %v", err)
-		}
-		if !tlscert.Leaf.NotAfter.After(after) {
-			t.Errorf("cache leaf.NotAfter = %v; want > %v", tlscert.Leaf.NotAfter, after)
-		}
-
-		// verify the old cert is also replaced in memory
-		man.stateMu.Lock()
-		defer man.stateMu.Unlock()
-		s := man.state[exampleCertKey]
-		if s == nil {
-			t.Fatalf("m.state[%q] is nil", exampleCertKey)
-		}
-		tlscert, err = s.tlscert()
-		if err != nil {
-			t.Fatalf("s.tlscert: %v", err)
-		}
-		if !tlscert.Leaf.NotAfter.After(after) {
-			t.Errorf("state leaf.NotAfter = %v; want > %v", tlscert.Leaf.NotAfter, after)
-		}
-	}
-
-	// trigger renew
-	hello := clientHelloInfo(exampleDomain, true)
-	if _, err := man.GetCertificate(hello); err != nil {
-		t.Fatal(err)
-	}
-
-	// wait for renew loop
-	select {
-	case <-time.After(10 * time.Second):
-		t.Fatal("renew took too long to occur")
-	case <-done:
-	}
-}
-
-func TestRenewFromCacheAlreadyRenewed(t *testing.T) {
-	man := &Manager{
-		Prompt:      AcceptTOS,
-		Cache:       newMemCache(t),
-		RenewBefore: 24 * time.Hour,
-		Client: &acme.Client{
-			DirectoryURL: "invalid",
-		},
-	}
-	defer man.stopRenew()
-
-	// cache a recently renewed cert with a different private key
-	newKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	now := time.Now()
-	newCert, err := dateDummyCert(newKey.Public(), now.Add(-2*time.Hour), now.Add(time.Hour*24*90), exampleDomain)
-	if err != nil {
-		t.Fatal(err)
-	}
-	newLeaf, err := validCert(exampleCertKey, [][]byte{newCert}, newKey)
-	if err != nil {
-		t.Fatal(err)
-	}
-	newTLSCert := &tls.Certificate{PrivateKey: newKey, Certificate: [][]byte{newCert}, Leaf: newLeaf}
-	if err := man.cachePut(context.Background(), exampleCertKey, newTLSCert); err != nil {
-		t.Fatal(err)
-	}
-
-	// set internal state to an almost expired cert
-	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-	oldCert, err := dateDummyCert(key.Public(), now.Add(-2*time.Hour), now.Add(time.Minute), exampleDomain)
-	if err != nil {
-		t.Fatal(err)
-	}
-	oldLeaf, err := validCert(exampleCertKey, [][]byte{oldCert}, key)
-	if err != nil {
-		t.Fatal(err)
-	}
-	man.stateMu.Lock()
-	if man.state == nil {
-		man.state = make(map[certKey]*certState)
-	}
-	s := &certState{
-		key:  key,
-		cert: [][]byte{oldCert},
-		leaf: oldLeaf,
-	}
-	man.state[exampleCertKey] = s
-	man.stateMu.Unlock()
-
-	// veriy the renewal accepted the newer cached cert
-	defer func() {
-		testDidRenewLoop = func(next time.Duration, err error) {}
-	}()
-	done := make(chan struct{})
-	testDidRenewLoop = func(next time.Duration, err error) {
-		defer close(done)
-		if err != nil {
-			t.Errorf("testDidRenewLoop: %v", err)
-		}
-		// Next should be about 90 days
-		// Previous expiration was within 1 min.
-		future := 88 * 24 * time.Hour
-		if next < future {
-			t.Errorf("testDidRenewLoop: next = %v; want >= %v", next, future)
-		}
-
-		// ensure the cached cert was not modified
-		tlscert, err := man.cacheGet(context.Background(), exampleCertKey)
-		if err != nil {
-			t.Fatalf("man.cacheGet: %v", err)
-		}
-		if !tlscert.Leaf.NotAfter.Equal(newLeaf.NotAfter) {
-			t.Errorf("cache leaf.NotAfter = %v; want == %v", tlscert.Leaf.NotAfter, newLeaf.NotAfter)
-		}
-
-		// verify the old cert is also replaced in memory
-		man.stateMu.Lock()
-		defer man.stateMu.Unlock()
-		s := man.state[exampleCertKey]
-		if s == nil {
-			t.Fatalf("m.state[%q] is nil", exampleCertKey)
-		}
-		stateKey := s.key.Public().(*ecdsa.PublicKey)
-		if stateKey.X.Cmp(newKey.X) != 0 || stateKey.Y.Cmp(newKey.Y) != 0 {
-			t.Fatalf("state key was not updated from cache x: %v y: %v; want x: %v y: %v", stateKey.X, stateKey.Y, newKey.X, newKey.Y)
-		}
-		tlscert, err = s.tlscert()
-		if err != nil {
-			t.Fatalf("s.tlscert: %v", err)
-		}
-		if !tlscert.Leaf.NotAfter.Equal(newLeaf.NotAfter) {
-			t.Errorf("state leaf.NotAfter = %v; want == %v", tlscert.Leaf.NotAfter, newLeaf.NotAfter)
-		}
-
-		// verify the private key is replaced in the renewal state
-		r := man.renewal[exampleCertKey]
-		if r == nil {
-			t.Fatalf("m.renewal[%q] is nil", exampleCertKey)
-		}
-		renewalKey := r.key.Public().(*ecdsa.PublicKey)
-		if renewalKey.X.Cmp(newKey.X) != 0 || renewalKey.Y.Cmp(newKey.Y) != 0 {
-			t.Fatalf("renewal private key was not updated from cache x: %v y: %v; want x: %v y: %v", renewalKey.X, renewalKey.Y, newKey.X, newKey.Y)
-		}
-
-	}
-
-	// assert the expiring cert is returned from state
-	hello := clientHelloInfo(exampleDomain, true)
-	tlscert, err := man.GetCertificate(hello)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if !oldLeaf.NotAfter.Equal(tlscert.Leaf.NotAfter) {
-		t.Errorf("state leaf.NotAfter = %v; want == %v", tlscert.Leaf.NotAfter, oldLeaf.NotAfter)
-	}
-
-	// trigger renew
-	go man.renew(exampleCertKey, s.key, s.leaf.NotAfter)
-
-	// wait for renew loop
-	select {
-	case <-time.After(10 * time.Second):
-		t.Fatal("renew took too long to occur")
-	case <-done:
-		// assert the new cert is returned from state after renew
-		hello := clientHelloInfo(exampleDomain, true)
-		tlscert, err := man.GetCertificate(hello)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if !newTLSCert.Leaf.NotAfter.Equal(tlscert.Leaf.NotAfter) {
-			t.Errorf("state leaf.NotAfter = %v; want == %v", tlscert.Leaf.NotAfter, newTLSCert.Leaf.NotAfter)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/http_test.go b/vendor/golang.org/x/crypto/acme/http_test.go
deleted file mode 100644
index 15e401b..0000000
--- a/vendor/golang.org/x/crypto/acme/http_test.go
+++ /dev/null
@@ -1,209 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package acme
-
-import (
-	"context"
-	"fmt"
-	"io/ioutil"
-	"net/http"
-	"net/http/httptest"
-	"reflect"
-	"strings"
-	"testing"
-	"time"
-)
-
-func TestDefaultBackoff(t *testing.T) {
-	tt := []struct {
-		nretry     int
-		retryAfter string        // Retry-After header
-		out        time.Duration // expected min; max = min + jitter
-	}{
-		{-1, "", time.Second},       // verify the lower bound is 1
-		{0, "", time.Second},        // verify the lower bound is 1
-		{100, "", 10 * time.Second}, // verify the ceiling
-		{1, "3600", time.Hour},      // verify the header value is used
-		{1, "", 1 * time.Second},
-		{2, "", 2 * time.Second},
-		{3, "", 4 * time.Second},
-		{4, "", 8 * time.Second},
-	}
-	for i, test := range tt {
-		r := httptest.NewRequest("GET", "/", nil)
-		resp := &http.Response{Header: http.Header{}}
-		if test.retryAfter != "" {
-			resp.Header.Set("Retry-After", test.retryAfter)
-		}
-		d := defaultBackoff(test.nretry, r, resp)
-		max := test.out + time.Second // + max jitter
-		if d < test.out || max < d {
-			t.Errorf("%d: defaultBackoff(%v) = %v; want between %v and %v", i, test.nretry, d, test.out, max)
-		}
-	}
-}
-
-func TestErrorResponse(t *testing.T) {
-	s := `{
-		"status": 400,
-		"type": "urn:acme:error:xxx",
-		"detail": "text"
-	}`
-	res := &http.Response{
-		StatusCode: 400,
-		Status:     "400 Bad Request",
-		Body:       ioutil.NopCloser(strings.NewReader(s)),
-		Header:     http.Header{"X-Foo": {"bar"}},
-	}
-	err := responseError(res)
-	v, ok := err.(*Error)
-	if !ok {
-		t.Fatalf("err = %+v (%T); want *Error type", err, err)
-	}
-	if v.StatusCode != 400 {
-		t.Errorf("v.StatusCode = %v; want 400", v.StatusCode)
-	}
-	if v.ProblemType != "urn:acme:error:xxx" {
-		t.Errorf("v.ProblemType = %q; want urn:acme:error:xxx", v.ProblemType)
-	}
-	if v.Detail != "text" {
-		t.Errorf("v.Detail = %q; want text", v.Detail)
-	}
-	if !reflect.DeepEqual(v.Header, res.Header) {
-		t.Errorf("v.Header = %+v; want %+v", v.Header, res.Header)
-	}
-}
-
-func TestPostWithRetries(t *testing.T) {
-	var count int
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		count++
-		w.Header().Set("Replay-Nonce", fmt.Sprintf("nonce%d", count))
-		if r.Method == "HEAD" {
-			// We expect the client to do 2 head requests to fetch
-			// nonces, one to start and another after getting badNonce
-			return
-		}
-
-		head, err := decodeJWSHead(r)
-		switch {
-		case err != nil:
-			t.Errorf("decodeJWSHead: %v", err)
-		case head.Nonce == "":
-			t.Error("head.Nonce is empty")
-		case head.Nonce == "nonce1":
-			// Return a badNonce error to force the call to retry.
-			w.Header().Set("Retry-After", "0")
-			w.WriteHeader(http.StatusBadRequest)
-			w.Write([]byte(`{"type":"urn:ietf:params:acme:error:badNonce"}`))
-			return
-		}
-		// Make client.Authorize happy; we're not testing its result.
-		w.WriteHeader(http.StatusCreated)
-		w.Write([]byte(`{"status":"valid"}`))
-	}))
-	defer ts.Close()
-
-	client := &Client{Key: testKey, dir: &Directory{AuthzURL: ts.URL}}
-	// This call will fail with badNonce, causing a retry
-	if _, err := client.Authorize(context.Background(), "example.com"); err != nil {
-		t.Errorf("client.Authorize 1: %v", err)
-	}
-	if count != 4 {
-		t.Errorf("total requests count: %d; want 4", count)
-	}
-}
-
-func TestRetryErrorType(t *testing.T) {
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "nonce")
-		w.WriteHeader(http.StatusTooManyRequests)
-		w.Write([]byte(`{"type":"rateLimited"}`))
-	}))
-	defer ts.Close()
-
-	client := &Client{
-		Key: testKey,
-		RetryBackoff: func(n int, r *http.Request, res *http.Response) time.Duration {
-			// Do no retries.
-			return 0
-		},
-		dir: &Directory{AuthzURL: ts.URL},
-	}
-
-	t.Run("post", func(t *testing.T) {
-		testRetryErrorType(t, func() error {
-			_, err := client.Authorize(context.Background(), "example.com")
-			return err
-		})
-	})
-	t.Run("get", func(t *testing.T) {
-		testRetryErrorType(t, func() error {
-			_, err := client.GetAuthorization(context.Background(), ts.URL)
-			return err
-		})
-	})
-}
-
-func testRetryErrorType(t *testing.T, callClient func() error) {
-	t.Helper()
-	err := callClient()
-	if err == nil {
-		t.Fatal("client.Authorize returned nil error")
-	}
-	acmeErr, ok := err.(*Error)
-	if !ok {
-		t.Fatalf("err is %v (%T); want *Error", err, err)
-	}
-	if acmeErr.StatusCode != http.StatusTooManyRequests {
-		t.Errorf("acmeErr.StatusCode = %d; want %d", acmeErr.StatusCode, http.StatusTooManyRequests)
-	}
-	if acmeErr.ProblemType != "rateLimited" {
-		t.Errorf("acmeErr.ProblemType = %q; want 'rateLimited'", acmeErr.ProblemType)
-	}
-}
-
-func TestRetryBackoffArgs(t *testing.T) {
-	const resCode = http.StatusInternalServerError
-	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Replay-Nonce", "test-nonce")
-		w.WriteHeader(resCode)
-	}))
-	defer ts.Close()
-
-	// Canceled in backoff.
-	ctx, cancel := context.WithCancel(context.Background())
-
-	var nretry int
-	backoff := func(n int, r *http.Request, res *http.Response) time.Duration {
-		nretry++
-		if n != nretry {
-			t.Errorf("n = %d; want %d", n, nretry)
-		}
-		if nretry == 3 {
-			cancel()
-		}
-
-		if r == nil {
-			t.Error("r is nil")
-		}
-		if res.StatusCode != resCode {
-			t.Errorf("res.StatusCode = %d; want %d", res.StatusCode, resCode)
-		}
-		return time.Millisecond
-	}
-
-	client := &Client{
-		Key:          testKey,
-		RetryBackoff: backoff,
-		dir:          &Directory{AuthzURL: ts.URL},
-	}
-	if _, err := client.Authorize(ctx, "example.com"); err == nil {
-		t.Error("err is nil")
-	}
-	if nretry != 3 {
-		t.Errorf("nretry = %d; want 3", nretry)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/jws_test.go b/vendor/golang.org/x/crypto/acme/jws_test.go
deleted file mode 100644
index 0ff0fb5..0000000
--- a/vendor/golang.org/x/crypto/acme/jws_test.go
+++ /dev/null
@@ -1,319 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package acme
-
-import (
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/base64"
-	"encoding/json"
-	"encoding/pem"
-	"fmt"
-	"math/big"
-	"testing"
-)
-
-const (
-	testKeyPEM = `
------BEGIN RSA PRIVATE KEY-----
-MIIEowIBAAKCAQEA4xgZ3eRPkwoRvy7qeRUbmMDe0V+xH9eWLdu0iheeLlrmD2mq
-WXfP9IeSKApbn34g8TuAS9g5zhq8ELQ3kmjr+KV86GAMgI6VAcGlq3QrzpTCf/30
-Ab7+zawrfRaFONa1HwEzPY1KHnGVkxJc85gNkwYI9SY2RHXtvln3zs5wITNrdosq
-EXeaIkVYBEhbhNu54pp3kxo6TuWLi9e6pXeWetEwmlBwtWZlPoib2j3TxLBksKZf
-oyFyek380mHgJAumQ/I2fjj98/97mk3ihOY4AgVdCDj1z/GCoZkG5Rq7nbCGyosy
-KWyDX00Zs+nNqVhoLeIvXC4nnWdJMZ6rogxyQQIDAQABAoIBACIEZTOI1Kao9nmV
-9IeIsuaR1Y61b9neOF/MLmIVIZu+AAJFCMB4Iw11FV6sFodwpEyeZhx2WkpWVN+H
-r19eGiLX3zsL0DOdqBJoSIHDWCCMxgnYJ6nvS0nRxX3qVrBp8R2g12Ub+gNPbmFm
-ecf/eeERIVxfifd9VsyRu34eDEvcmKFuLYbElFcPh62xE3x12UZvV/sN7gXbawpP
-G+w255vbE5MoaKdnnO83cTFlcHvhn24M/78qP7Te5OAeelr1R89kYxQLpuGe4fbS
-zc6E3ym5Td6urDetGGrSY1Eu10/8sMusX+KNWkm+RsBRbkyKq72ks/qKpOxOa+c6
-9gm+Y8ECgYEA/iNUyg1ubRdH11p82l8KHtFC1DPE0V1gSZsX29TpM5jS4qv46K+s
-8Ym1zmrORM8x+cynfPx1VQZQ34EYeCMIX212ryJ+zDATl4NE0I4muMvSiH9vx6Xc
-7FmhNnaYzPsBL5Tm9nmtQuP09YEn8poiOJFiDs/4olnD5ogA5O4THGkCgYEA5MIL
-qWYBUuqbEWLRtMruUtpASclrBqNNsJEsMGbeqBJmoMxdHeSZckbLOrqm7GlMyNRJ
-Ne/5uWRGSzaMYuGmwsPpERzqEvYFnSrpjW5YtXZ+JtxFXNVfm9Z1gLLgvGpOUCIU
-RbpoDckDe1vgUuk3y5+DjZihs+rqIJ45XzXTzBkCgYBWuf3segruJZy5rEKhTv+o
-JqeUvRn0jNYYKFpLBeyTVBrbie6GkbUGNIWbrK05pC+c3K9nosvzuRUOQQL1tJbd
-4gA3oiD9U4bMFNr+BRTHyZ7OQBcIXdz3t1qhuHVKtnngIAN1p25uPlbRFUNpshnt
-jgeVoHlsBhApcs5DUc+pyQKBgDzeHPg/+g4z+nrPznjKnktRY1W+0El93kgi+J0Q
-YiJacxBKEGTJ1MKBb8X6sDurcRDm22wMpGfd9I5Cv2v4GsUsF7HD/cx5xdih+G73
-c4clNj/k0Ff5Nm1izPUno4C+0IOl7br39IPmfpSuR6wH/h6iHQDqIeybjxyKvT1G
-N0rRAoGBAKGD+4ZI/E1MoJ5CXB8cDDMHagbE3cq/DtmYzE2v1DFpQYu5I4PCm5c7
-EQeIP6dZtv8IMgtGIb91QX9pXvP0aznzQKwYIA8nZgoENCPfiMTPiEDT9e/0lObO
-9XWsXpbSTsRPj0sv1rB+UzBJ0PgjK4q2zOF0sNo7b1+6nlM3BWPx
------END RSA PRIVATE KEY-----
-`
-
-	// This thumbprint is for the testKey defined above.
-	testKeyThumbprint = "6nicxzh6WETQlrvdchkz-U3e3DOQZ4heJKU63rfqMqQ"
-
-	// openssl ecparam -name secp256k1 -genkey -noout
-	testKeyECPEM = `
------BEGIN EC PRIVATE KEY-----
-MHcCAQEEIK07hGLr0RwyUdYJ8wbIiBS55CjnkMD23DWr+ccnypWLoAoGCCqGSM49
-AwEHoUQDQgAE5lhEug5xK4xBDZ2nAbaxLtaLiv85bxJ7ePd1dkO23HThqIrvawF5
-QAaS/RNouybCiRhRjI3EaxLkQwgrCw0gqQ==
------END EC PRIVATE KEY-----
-`
-	// openssl ecparam -name secp384r1 -genkey -noout
-	testKeyEC384PEM = `
------BEGIN EC PRIVATE KEY-----
-MIGkAgEBBDAQ4lNtXRORWr1bgKR1CGysr9AJ9SyEk4jiVnlUWWUChmSNL+i9SLSD
-Oe/naPqXJ6CgBwYFK4EEACKhZANiAAQzKtj+Ms0vHoTX5dzv3/L5YMXOWuI5UKRj
-JigpahYCqXD2BA1j0E/2xt5vlPf+gm0PL+UHSQsCokGnIGuaHCsJAp3ry0gHQEke
-WYXapUUFdvaK1R2/2hn5O+eiQM8YzCg=
------END EC PRIVATE KEY-----
-`
-	// openssl ecparam -name secp521r1 -genkey -noout
-	testKeyEC512PEM = `
------BEGIN EC PRIVATE KEY-----
-MIHcAgEBBEIBSNZKFcWzXzB/aJClAb305ibalKgtDA7+70eEkdPt28/3LZMM935Z
-KqYHh/COcxuu3Kt8azRAUz3gyr4zZKhlKUSgBwYFK4EEACOhgYkDgYYABAHUNKbx
-7JwC7H6pa2sV0tERWhHhB3JmW+OP6SUgMWryvIKajlx73eS24dy4QPGrWO9/ABsD
-FqcRSkNVTXnIv6+0mAF25knqIBIg5Q8M9BnOu9GGAchcwt3O7RDHmqewnJJDrbjd
-GGnm6rb+NnWR9DIopM0nKNkToWoF/hzopxu4Ae/GsQ==
------END EC PRIVATE KEY-----
-`
-	// 1. openssl ec -in key.pem -noout -text
-	// 2. remove first byte, 04 (the header); the rest is X and Y
-	// 3. convert each with: echo <val> | xxd -r -p | base64 -w 100 | tr -d '=' | tr '/+' '_-'
-	testKeyECPubX    = "5lhEug5xK4xBDZ2nAbaxLtaLiv85bxJ7ePd1dkO23HQ"
-	testKeyECPubY    = "4aiK72sBeUAGkv0TaLsmwokYUYyNxGsS5EMIKwsNIKk"
-	testKeyEC384PubX = "MyrY_jLNLx6E1-Xc79_y-WDFzlriOVCkYyYoKWoWAqlw9gQNY9BP9sbeb5T3_oJt"
-	testKeyEC384PubY = "Dy_lB0kLAqJBpyBrmhwrCQKd68tIB0BJHlmF2qVFBXb2itUdv9oZ-TvnokDPGMwo"
-	testKeyEC512PubX = "AdQ0pvHsnALsfqlraxXS0RFaEeEHcmZb44_pJSAxavK8gpqOXHvd5Lbh3LhA8atY738AGwMWpxFKQ1VNeci_r7SY"
-	testKeyEC512PubY = "AXbmSeogEiDlDwz0Gc670YYByFzC3c7tEMeap7CckkOtuN0Yaebqtv42dZH0MiikzSco2ROhagX-HOinG7gB78ax"
-
-	// echo -n '{"crv":"P-256","kty":"EC","x":"<testKeyECPubX>","y":"<testKeyECPubY>"}' | \
-	// openssl dgst -binary -sha256 | base64 | tr -d '=' | tr '/+' '_-'
-	testKeyECThumbprint = "zedj-Bd1Zshp8KLePv2MB-lJ_Hagp7wAwdkA0NUTniU"
-)
-
-var (
-	testKey      *rsa.PrivateKey
-	testKeyEC    *ecdsa.PrivateKey
-	testKeyEC384 *ecdsa.PrivateKey
-	testKeyEC512 *ecdsa.PrivateKey
-)
-
-func init() {
-	testKey = parseRSA(testKeyPEM, "testKeyPEM")
-	testKeyEC = parseEC(testKeyECPEM, "testKeyECPEM")
-	testKeyEC384 = parseEC(testKeyEC384PEM, "testKeyEC384PEM")
-	testKeyEC512 = parseEC(testKeyEC512PEM, "testKeyEC512PEM")
-}
-
-func decodePEM(s, name string) []byte {
-	d, _ := pem.Decode([]byte(s))
-	if d == nil {
-		panic("no block found in " + name)
-	}
-	return d.Bytes
-}
-
-func parseRSA(s, name string) *rsa.PrivateKey {
-	b := decodePEM(s, name)
-	k, err := x509.ParsePKCS1PrivateKey(b)
-	if err != nil {
-		panic(fmt.Sprintf("%s: %v", name, err))
-	}
-	return k
-}
-
-func parseEC(s, name string) *ecdsa.PrivateKey {
-	b := decodePEM(s, name)
-	k, err := x509.ParseECPrivateKey(b)
-	if err != nil {
-		panic(fmt.Sprintf("%s: %v", name, err))
-	}
-	return k
-}
-
-func TestJWSEncodeJSON(t *testing.T) {
-	claims := struct{ Msg string }{"Hello JWS"}
-	// JWS signed with testKey and "nonce" as the nonce value
-	// JSON-serialized JWS fields are split for easier testing
-	const (
-		// {"alg":"RS256","jwk":{"e":"AQAB","kty":"RSA","n":"..."},"nonce":"nonce"}
-		protected = "eyJhbGciOiJSUzI1NiIsImp3ayI6eyJlIjoiQVFBQiIsImt0eSI6" +
-			"IlJTQSIsIm4iOiI0eGdaM2VSUGt3b1J2eTdxZVJVYm1NRGUwVi14" +
-			"SDllV0xkdTBpaGVlTGxybUQybXFXWGZQOUllU0tBcGJuMzRnOFR1" +
-			"QVM5ZzV6aHE4RUxRM2ttanItS1Y4NkdBTWdJNlZBY0dscTNRcnpw" +
-			"VENmXzMwQWI3LXphd3JmUmFGT05hMUh3RXpQWTFLSG5HVmt4SmM4" +
-			"NWdOa3dZSTlTWTJSSFh0dmxuM3pzNXdJVE5yZG9zcUVYZWFJa1ZZ" +
-			"QkVoYmhOdTU0cHAza3hvNlR1V0xpOWU2cFhlV2V0RXdtbEJ3dFda" +
-			"bFBvaWIyajNUeExCa3NLWmZveUZ5ZWszODBtSGdKQXVtUV9JMmZq" +
-			"ajk4Xzk3bWszaWhPWTRBZ1ZkQ0RqMXpfR0NvWmtHNVJxN25iQ0d5" +
-			"b3N5S1d5RFgwMFpzLW5OcVZob0xlSXZYQzRubldkSk1aNnJvZ3h5" +
-			"UVEifSwibm9uY2UiOiJub25jZSJ9"
-		// {"Msg":"Hello JWS"}
-		payload   = "eyJNc2ciOiJIZWxsbyBKV1MifQ"
-		signature = "eAGUikStX_UxyiFhxSLMyuyBcIB80GeBkFROCpap2sW3EmkU_ggF" +
-			"knaQzxrTfItICSAXsCLIquZ5BbrSWA_4vdEYrwWtdUj7NqFKjHRa" +
-			"zpLHcoR7r1rEHvkoP1xj49lS5fc3Wjjq8JUhffkhGbWZ8ZVkgPdC" +
-			"4tMBWiQDoth-x8jELP_3LYOB_ScUXi2mETBawLgOT2K8rA0Vbbmx" +
-			"hWNlOWuUf-8hL5YX4IOEwsS8JK_TrTq5Zc9My0zHJmaieqDV0UlP" +
-			"k0onFjPFkGm7MrPSgd0MqRG-4vSAg2O4hDo7rKv4n8POjjXlNQvM" +
-			"9IPLr8qZ7usYBKhEGwX3yq_eicAwBw"
-	)
-
-	b, err := jwsEncodeJSON(claims, testKey, "nonce")
-	if err != nil {
-		t.Fatal(err)
-	}
-	var jws struct{ Protected, Payload, Signature string }
-	if err := json.Unmarshal(b, &jws); err != nil {
-		t.Fatal(err)
-	}
-	if jws.Protected != protected {
-		t.Errorf("protected:\n%s\nwant:\n%s", jws.Protected, protected)
-	}
-	if jws.Payload != payload {
-		t.Errorf("payload:\n%s\nwant:\n%s", jws.Payload, payload)
-	}
-	if jws.Signature != signature {
-		t.Errorf("signature:\n%s\nwant:\n%s", jws.Signature, signature)
-	}
-}
-
-func TestJWSEncodeJSONEC(t *testing.T) {
-	tt := []struct {
-		key      *ecdsa.PrivateKey
-		x, y     string
-		alg, crv string
-	}{
-		{testKeyEC, testKeyECPubX, testKeyECPubY, "ES256", "P-256"},
-		{testKeyEC384, testKeyEC384PubX, testKeyEC384PubY, "ES384", "P-384"},
-		{testKeyEC512, testKeyEC512PubX, testKeyEC512PubY, "ES512", "P-521"},
-	}
-	for i, test := range tt {
-		claims := struct{ Msg string }{"Hello JWS"}
-		b, err := jwsEncodeJSON(claims, test.key, "nonce")
-		if err != nil {
-			t.Errorf("%d: %v", i, err)
-			continue
-		}
-		var jws struct{ Protected, Payload, Signature string }
-		if err := json.Unmarshal(b, &jws); err != nil {
-			t.Errorf("%d: %v", i, err)
-			continue
-		}
-
-		b, err = base64.RawURLEncoding.DecodeString(jws.Protected)
-		if err != nil {
-			t.Errorf("%d: jws.Protected: %v", i, err)
-		}
-		var head struct {
-			Alg   string
-			Nonce string
-			JWK   struct {
-				Crv string
-				Kty string
-				X   string
-				Y   string
-			} `json:"jwk"`
-		}
-		if err := json.Unmarshal(b, &head); err != nil {
-			t.Errorf("%d: jws.Protected: %v", i, err)
-		}
-		if head.Alg != test.alg {
-			t.Errorf("%d: head.Alg = %q; want %q", i, head.Alg, test.alg)
-		}
-		if head.Nonce != "nonce" {
-			t.Errorf("%d: head.Nonce = %q; want nonce", i, head.Nonce)
-		}
-		if head.JWK.Crv != test.crv {
-			t.Errorf("%d: head.JWK.Crv = %q; want %q", i, head.JWK.Crv, test.crv)
-		}
-		if head.JWK.Kty != "EC" {
-			t.Errorf("%d: head.JWK.Kty = %q; want EC", i, head.JWK.Kty)
-		}
-		if head.JWK.X != test.x {
-			t.Errorf("%d: head.JWK.X = %q; want %q", i, head.JWK.X, test.x)
-		}
-		if head.JWK.Y != test.y {
-			t.Errorf("%d: head.JWK.Y = %q; want %q", i, head.JWK.Y, test.y)
-		}
-	}
-}
-
-func TestJWKThumbprintRSA(t *testing.T) {
-	// Key example from RFC 7638
-	const base64N = "0vx7agoebGcQSuuPiLJXZptN9nndrQmbXEps2aiAFbWhM78LhWx4cbbfAAt" +
-		"VT86zwu1RK7aPFFxuhDR1L6tSoc_BJECPebWKRXjBZCiFV4n3oknjhMstn6" +
-		"4tZ_2W-5JsGY4Hc5n9yBXArwl93lqt7_RN5w6Cf0h4QyQ5v-65YGjQR0_FD" +
-		"W2QvzqY368QQMicAtaSqzs8KJZgnYb9c7d0zgdAZHzu6qMQvRL5hajrn1n9" +
-		"1CbOpbISD08qNLyrdkt-bFTWhAI4vMQFh6WeZu0fM4lFd2NcRwr3XPksINH" +
-		"aQ-G_xBniIqbw0Ls1jF44-csFCur-kEgU8awapJzKnqDKgw"
-	const base64E = "AQAB"
-	const expected = "NzbLsXh8uDCcd-6MNwXF4W_7noWXFZAfHkxZsRGC9Xs"
-
-	b, err := base64.RawURLEncoding.DecodeString(base64N)
-	if err != nil {
-		t.Fatalf("Error parsing example key N: %v", err)
-	}
-	n := new(big.Int).SetBytes(b)
-
-	b, err = base64.RawURLEncoding.DecodeString(base64E)
-	if err != nil {
-		t.Fatalf("Error parsing example key E: %v", err)
-	}
-	e := new(big.Int).SetBytes(b)
-
-	pub := &rsa.PublicKey{N: n, E: int(e.Uint64())}
-	th, err := JWKThumbprint(pub)
-	if err != nil {
-		t.Error(err)
-	}
-	if th != expected {
-		t.Errorf("thumbprint = %q; want %q", th, expected)
-	}
-}
-
-func TestJWKThumbprintEC(t *testing.T) {
-	// Key example from RFC 7520
-	// expected was computed with
-	// echo -n '{"crv":"P-521","kty":"EC","x":"<base64X>","y":"<base64Y>"}' | \
-	// openssl dgst -binary -sha256 | \
-	// base64 | \
-	// tr -d '=' | tr '/+' '_-'
-	const (
-		base64X = "AHKZLLOsCOzz5cY97ewNUajB957y-C-U88c3v13nmGZx6sYl_oJXu9A5RkT" +
-			"KqjqvjyekWF-7ytDyRXYgCF5cj0Kt"
-		base64Y = "AdymlHvOiLxXkEhayXQnNCvDX4h9htZaCJN34kfmC6pV5OhQHiraVySsUda" +
-			"QkAgDPrwQrJmbnX9cwlGfP-HqHZR1"
-		expected = "dHri3SADZkrush5HU_50AoRhcKFryN-PI6jPBtPL55M"
-	)
-
-	b, err := base64.RawURLEncoding.DecodeString(base64X)
-	if err != nil {
-		t.Fatalf("Error parsing example key X: %v", err)
-	}
-	x := new(big.Int).SetBytes(b)
-
-	b, err = base64.RawURLEncoding.DecodeString(base64Y)
-	if err != nil {
-		t.Fatalf("Error parsing example key Y: %v", err)
-	}
-	y := new(big.Int).SetBytes(b)
-
-	pub := &ecdsa.PublicKey{Curve: elliptic.P521(), X: x, Y: y}
-	th, err := JWKThumbprint(pub)
-	if err != nil {
-		t.Error(err)
-	}
-	if th != expected {
-		t.Errorf("thumbprint = %q; want %q", th, expected)
-	}
-}
-
-func TestJWKThumbprintErrUnsupportedKey(t *testing.T) {
-	_, err := JWKThumbprint(struct{}{})
-	if err != ErrUnsupportedKey {
-		t.Errorf("err = %q; want %q", err, ErrUnsupportedKey)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/acme/types_test.go b/vendor/golang.org/x/crypto/acme/types_test.go
deleted file mode 100644
index a7553e6..0000000
--- a/vendor/golang.org/x/crypto/acme/types_test.go
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package acme
-
-import (
-	"errors"
-	"net/http"
-	"testing"
-	"time"
-)
-
-func TestRateLimit(t *testing.T) {
-	now := time.Date(2017, 04, 27, 10, 0, 0, 0, time.UTC)
-	f := timeNow
-	defer func() { timeNow = f }()
-	timeNow = func() time.Time { return now }
-
-	h120, hTime := http.Header{}, http.Header{}
-	h120.Set("Retry-After", "120")
-	hTime.Set("Retry-After", "Tue Apr 27 11:00:00 2017")
-
-	err1 := &Error{
-		ProblemType: "urn:ietf:params:acme:error:nolimit",
-		Header:      h120,
-	}
-	err2 := &Error{
-		ProblemType: "urn:ietf:params:acme:error:rateLimited",
-		Header:      h120,
-	}
-	err3 := &Error{
-		ProblemType: "urn:ietf:params:acme:error:rateLimited",
-		Header:      nil,
-	}
-	err4 := &Error{
-		ProblemType: "urn:ietf:params:acme:error:rateLimited",
-		Header:      hTime,
-	}
-
-	tt := []struct {
-		err error
-		res time.Duration
-		ok  bool
-	}{
-		{nil, 0, false},
-		{errors.New("dummy"), 0, false},
-		{err1, 0, false},
-		{err2, 2 * time.Minute, true},
-		{err3, 0, true},
-		{err4, time.Hour, true},
-	}
-	for i, test := range tt {
-		res, ok := RateLimit(test.err)
-		if ok != test.ok {
-			t.Errorf("%d: RateLimit(%+v): ok = %v; want %v", i, test.err, ok, test.ok)
-			continue
-		}
-		if res != test.res {
-			t.Errorf("%d: RateLimit(%+v) = %v; want %v", i, test.err, res, test.res)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/argon2/argon2.go b/vendor/golang.org/x/crypto/argon2/argon2.go
deleted file mode 100644
index b423fea..0000000
--- a/vendor/golang.org/x/crypto/argon2/argon2.go
+++ /dev/null
@@ -1,285 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package argon2 implements the key derivation function Argon2.
-// Argon2 was selected as the winner of the Password Hashing Competition and can
-// be used to derive cryptographic keys from passwords.
-//
-// For a detailed specification of Argon2 see [1].
-//
-// If you aren't sure which function you need, use Argon2id (IDKey) and
-// the parameter recommendations for your scenario.
-//
-//
-// Argon2i
-//
-// Argon2i (implemented by Key) is the side-channel resistant version of Argon2.
-// It uses data-independent memory access, which is preferred for password
-// hashing and password-based key derivation. Argon2i requires more passes over
-// memory than Argon2id to protect from trade-off attacks. The recommended
-// parameters (taken from [2]) for non-interactive operations are time=3 and to
-// use the maximum available memory.
-//
-//
-// Argon2id
-//
-// Argon2id (implemented by IDKey) is a hybrid version of Argon2 combining
-// Argon2i and Argon2d. It uses data-independent memory access for the first
-// half of the first iteration over the memory and data-dependent memory access
-// for the rest. Argon2id is side-channel resistant and provides better brute-
-// force cost savings due to time-memory tradeoffs than Argon2i. The recommended
-// parameters for non-interactive operations (taken from [2]) are time=1 and to
-// use the maximum available memory.
-//
-// [1] https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
-// [2] https://tools.ietf.org/html/draft-irtf-cfrg-argon2-03#section-9.3
-package argon2
-
-import (
-	"encoding/binary"
-	"sync"
-
-	"golang.org/x/crypto/blake2b"
-)
-
-// The Argon2 version implemented by this package.
-const Version = 0x13
-
-const (
-	argon2d = iota
-	argon2i
-	argon2id
-)
-
-// Key derives a key from the password, salt, and cost parameters using Argon2i
-// returning a byte slice of length keyLen that can be used as cryptographic
-// key. The CPU cost and parallelism degree must be greater than zero.
-//
-// For example, you can get a derived key for e.g. AES-256 (which needs a
-// 32-byte key) by doing:
-//
-//      key := argon2.Key([]byte("some password"), salt, 3, 32*1024, 4, 32)
-//
-// The draft RFC recommends[2] time=3, and memory=32*1024 is a sensible number.
-// If using that amount of memory (32 MB) is not possible in some contexts then
-// the time parameter can be increased to compensate.
-//
-// The time parameter specifies the number of passes over the memory and the
-// memory parameter specifies the size of the memory in KiB. For example
-// memory=32*1024 sets the memory cost to ~32 MB. The number of threads can be
-// adjusted to the number of available CPUs. The cost parameters should be
-// increased as memory latency and CPU parallelism increases. Remember to get a
-// good random salt.
-func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
-	return deriveKey(argon2i, password, salt, nil, nil, time, memory, threads, keyLen)
-}
-
-// IDKey derives a key from the password, salt, and cost parameters using
-// Argon2id returning a byte slice of length keyLen that can be used as
-// cryptographic key. The CPU cost and parallelism degree must be greater than
-// zero.
-//
-// For example, you can get a derived key for e.g. AES-256 (which needs a
-// 32-byte key) by doing:
-//
-//      key := argon2.IDKey([]byte("some password"), salt, 1, 64*1024, 4, 32)
-//
-// The draft RFC recommends[2] time=1, and memory=64*1024 is a sensible number.
-// If using that amount of memory (64 MB) is not possible in some contexts then
-// the time parameter can be increased to compensate.
-//
-// The time parameter specifies the number of passes over the memory and the
-// memory parameter specifies the size of the memory in KiB. For example
-// memory=64*1024 sets the memory cost to ~64 MB. The number of threads can be
-// adjusted to the numbers of available CPUs. The cost parameters should be
-// increased as memory latency and CPU parallelism increases. Remember to get a
-// good random salt.
-func IDKey(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
-	return deriveKey(argon2id, password, salt, nil, nil, time, memory, threads, keyLen)
-}
-
-func deriveKey(mode int, password, salt, secret, data []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
-	if time < 1 {
-		panic("argon2: number of rounds too small")
-	}
-	if threads < 1 {
-		panic("argon2: parallelism degree too low")
-	}
-	h0 := initHash(password, salt, secret, data, time, memory, uint32(threads), keyLen, mode)
-
-	memory = memory / (syncPoints * uint32(threads)) * (syncPoints * uint32(threads))
-	if memory < 2*syncPoints*uint32(threads) {
-		memory = 2 * syncPoints * uint32(threads)
-	}
-	B := initBlocks(&h0, memory, uint32(threads))
-	processBlocks(B, time, memory, uint32(threads), mode)
-	return extractKey(B, memory, uint32(threads), keyLen)
-}
-
-const (
-	blockLength = 128
-	syncPoints  = 4
-)
-
-type block [blockLength]uint64
-
-func initHash(password, salt, key, data []byte, time, memory, threads, keyLen uint32, mode int) [blake2b.Size + 8]byte {
-	var (
-		h0     [blake2b.Size + 8]byte
-		params [24]byte
-		tmp    [4]byte
-	)
-
-	b2, _ := blake2b.New512(nil)
-	binary.LittleEndian.PutUint32(params[0:4], threads)
-	binary.LittleEndian.PutUint32(params[4:8], keyLen)
-	binary.LittleEndian.PutUint32(params[8:12], memory)
-	binary.LittleEndian.PutUint32(params[12:16], time)
-	binary.LittleEndian.PutUint32(params[16:20], uint32(Version))
-	binary.LittleEndian.PutUint32(params[20:24], uint32(mode))
-	b2.Write(params[:])
-	binary.LittleEndian.PutUint32(tmp[:], uint32(len(password)))
-	b2.Write(tmp[:])
-	b2.Write(password)
-	binary.LittleEndian.PutUint32(tmp[:], uint32(len(salt)))
-	b2.Write(tmp[:])
-	b2.Write(salt)
-	binary.LittleEndian.PutUint32(tmp[:], uint32(len(key)))
-	b2.Write(tmp[:])
-	b2.Write(key)
-	binary.LittleEndian.PutUint32(tmp[:], uint32(len(data)))
-	b2.Write(tmp[:])
-	b2.Write(data)
-	b2.Sum(h0[:0])
-	return h0
-}
-
-func initBlocks(h0 *[blake2b.Size + 8]byte, memory, threads uint32) []block {
-	var block0 [1024]byte
-	B := make([]block, memory)
-	for lane := uint32(0); lane < threads; lane++ {
-		j := lane * (memory / threads)
-		binary.LittleEndian.PutUint32(h0[blake2b.Size+4:], lane)
-
-		binary.LittleEndian.PutUint32(h0[blake2b.Size:], 0)
-		blake2bHash(block0[:], h0[:])
-		for i := range B[j+0] {
-			B[j+0][i] = binary.LittleEndian.Uint64(block0[i*8:])
-		}
-
-		binary.LittleEndian.PutUint32(h0[blake2b.Size:], 1)
-		blake2bHash(block0[:], h0[:])
-		for i := range B[j+1] {
-			B[j+1][i] = binary.LittleEndian.Uint64(block0[i*8:])
-		}
-	}
-	return B
-}
-
-func processBlocks(B []block, time, memory, threads uint32, mode int) {
-	lanes := memory / threads
-	segments := lanes / syncPoints
-
-	processSegment := func(n, slice, lane uint32, wg *sync.WaitGroup) {
-		var addresses, in, zero block
-		if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
-			in[0] = uint64(n)
-			in[1] = uint64(lane)
-			in[2] = uint64(slice)
-			in[3] = uint64(memory)
-			in[4] = uint64(time)
-			in[5] = uint64(mode)
-		}
-
-		index := uint32(0)
-		if n == 0 && slice == 0 {
-			index = 2 // we have already generated the first two blocks
-			if mode == argon2i || mode == argon2id {
-				in[6]++
-				processBlock(&addresses, &in, &zero)
-				processBlock(&addresses, &addresses, &zero)
-			}
-		}
-
-		offset := lane*lanes + slice*segments + index
-		var random uint64
-		for index < segments {
-			prev := offset - 1
-			if index == 0 && slice == 0 {
-				prev += lanes // last block in lane
-			}
-			if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
-				if index%blockLength == 0 {
-					in[6]++
-					processBlock(&addresses, &in, &zero)
-					processBlock(&addresses, &addresses, &zero)
-				}
-				random = addresses[index%blockLength]
-			} else {
-				random = B[prev][0]
-			}
-			newOffset := indexAlpha(random, lanes, segments, threads, n, slice, lane, index)
-			processBlockXOR(&B[offset], &B[prev], &B[newOffset])
-			index, offset = index+1, offset+1
-		}
-		wg.Done()
-	}
-
-	for n := uint32(0); n < time; n++ {
-		for slice := uint32(0); slice < syncPoints; slice++ {
-			var wg sync.WaitGroup
-			for lane := uint32(0); lane < threads; lane++ {
-				wg.Add(1)
-				go processSegment(n, slice, lane, &wg)
-			}
-			wg.Wait()
-		}
-	}
-
-}
-
-func extractKey(B []block, memory, threads, keyLen uint32) []byte {
-	lanes := memory / threads
-	for lane := uint32(0); lane < threads-1; lane++ {
-		for i, v := range B[(lane*lanes)+lanes-1] {
-			B[memory-1][i] ^= v
-		}
-	}
-
-	var block [1024]byte
-	for i, v := range B[memory-1] {
-		binary.LittleEndian.PutUint64(block[i*8:], v)
-	}
-	key := make([]byte, keyLen)
-	blake2bHash(key, block[:])
-	return key
-}
-
-func indexAlpha(rand uint64, lanes, segments, threads, n, slice, lane, index uint32) uint32 {
-	refLane := uint32(rand>>32) % threads
-	if n == 0 && slice == 0 {
-		refLane = lane
-	}
-	m, s := 3*segments, ((slice+1)%syncPoints)*segments
-	if lane == refLane {
-		m += index
-	}
-	if n == 0 {
-		m, s = slice*segments, 0
-		if slice == 0 || lane == refLane {
-			m += index
-		}
-	}
-	if index == 0 || lane == refLane {
-		m--
-	}
-	return phi(rand, uint64(m), uint64(s), refLane, lanes)
-}
-
-func phi(rand, m, s uint64, lane, lanes uint32) uint32 {
-	p := rand & 0xFFFFFFFF
-	p = (p * p) >> 32
-	p = (p * m) >> 32
-	return lane*lanes + uint32((s+m-(p+1))%uint64(lanes))
-}
diff --git a/vendor/golang.org/x/crypto/argon2/argon2_test.go b/vendor/golang.org/x/crypto/argon2/argon2_test.go
deleted file mode 100644
index 775b97a..0000000
--- a/vendor/golang.org/x/crypto/argon2/argon2_test.go
+++ /dev/null
@@ -1,233 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package argon2
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-var (
-	genKatPassword = []byte{
-		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-		0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	}
-	genKatSalt   = []byte{0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02}
-	genKatSecret = []byte{0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03}
-	genKatAAD    = []byte{0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04}
-)
-
-func TestArgon2(t *testing.T) {
-	defer func(sse4 bool) { useSSE4 = sse4 }(useSSE4)
-
-	if useSSE4 {
-		t.Log("SSE4.1 version")
-		testArgon2i(t)
-		testArgon2d(t)
-		testArgon2id(t)
-		useSSE4 = false
-	}
-	t.Log("generic version")
-	testArgon2i(t)
-	testArgon2d(t)
-	testArgon2id(t)
-}
-
-func testArgon2d(t *testing.T) {
-	want := []byte{
-		0x51, 0x2b, 0x39, 0x1b, 0x6f, 0x11, 0x62, 0x97,
-		0x53, 0x71, 0xd3, 0x09, 0x19, 0x73, 0x42, 0x94,
-		0xf8, 0x68, 0xe3, 0xbe, 0x39, 0x84, 0xf3, 0xc1,
-		0xa1, 0x3a, 0x4d, 0xb9, 0xfa, 0xbe, 0x4a, 0xcb,
-	}
-	hash := deriveKey(argon2d, genKatPassword, genKatSalt, genKatSecret, genKatAAD, 3, 32, 4, 32)
-	if !bytes.Equal(hash, want) {
-		t.Errorf("derived key does not match - got: %s , want: %s", hex.EncodeToString(hash), hex.EncodeToString(want))
-	}
-}
-
-func testArgon2i(t *testing.T) {
-	want := []byte{
-		0xc8, 0x14, 0xd9, 0xd1, 0xdc, 0x7f, 0x37, 0xaa,
-		0x13, 0xf0, 0xd7, 0x7f, 0x24, 0x94, 0xbd, 0xa1,
-		0xc8, 0xde, 0x6b, 0x01, 0x6d, 0xd3, 0x88, 0xd2,
-		0x99, 0x52, 0xa4, 0xc4, 0x67, 0x2b, 0x6c, 0xe8,
-	}
-	hash := deriveKey(argon2i, genKatPassword, genKatSalt, genKatSecret, genKatAAD, 3, 32, 4, 32)
-	if !bytes.Equal(hash, want) {
-		t.Errorf("derived key does not match - got: %s , want: %s", hex.EncodeToString(hash), hex.EncodeToString(want))
-	}
-}
-
-func testArgon2id(t *testing.T) {
-	want := []byte{
-		0x0d, 0x64, 0x0d, 0xf5, 0x8d, 0x78, 0x76, 0x6c,
-		0x08, 0xc0, 0x37, 0xa3, 0x4a, 0x8b, 0x53, 0xc9,
-		0xd0, 0x1e, 0xf0, 0x45, 0x2d, 0x75, 0xb6, 0x5e,
-		0xb5, 0x25, 0x20, 0xe9, 0x6b, 0x01, 0xe6, 0x59,
-	}
-	hash := deriveKey(argon2id, genKatPassword, genKatSalt, genKatSecret, genKatAAD, 3, 32, 4, 32)
-	if !bytes.Equal(hash, want) {
-		t.Errorf("derived key does not match - got: %s , want: %s", hex.EncodeToString(hash), hex.EncodeToString(want))
-	}
-}
-
-func TestVectors(t *testing.T) {
-	password, salt := []byte("password"), []byte("somesalt")
-	for i, v := range testVectors {
-		want, err := hex.DecodeString(v.hash)
-		if err != nil {
-			t.Fatalf("Test %d: failed to decode hash: %v", i, err)
-		}
-		hash := deriveKey(v.mode, password, salt, nil, nil, v.time, v.memory, v.threads, uint32(len(want)))
-		if !bytes.Equal(hash, want) {
-			t.Errorf("Test %d - got: %s want: %s", i, hex.EncodeToString(hash), hex.EncodeToString(want))
-		}
-	}
-}
-
-func benchmarkArgon2(mode int, time, memory uint32, threads uint8, keyLen uint32, b *testing.B) {
-	password := []byte("password")
-	salt := []byte("choosing random salts is hard")
-	b.ReportAllocs()
-	for i := 0; i < b.N; i++ {
-		deriveKey(mode, password, salt, nil, nil, time, memory, threads, keyLen)
-	}
-}
-
-func BenchmarkArgon2i(b *testing.B) {
-	b.Run(" Time: 3 Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2i, 3, 32*1024, 1, 32, b) })
-	b.Run(" Time: 4 Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2i, 4, 32*1024, 1, 32, b) })
-	b.Run(" Time: 5 Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2i, 5, 32*1024, 1, 32, b) })
-	b.Run(" Time: 3 Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2i, 3, 64*1024, 4, 32, b) })
-	b.Run(" Time: 4 Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2i, 4, 64*1024, 4, 32, b) })
-	b.Run(" Time: 5 Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2i, 5, 64*1024, 4, 32, b) })
-}
-
-func BenchmarkArgon2d(b *testing.B) {
-	b.Run(" Time: 3, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2d, 3, 32*1024, 1, 32, b) })
-	b.Run(" Time: 4, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2d, 4, 32*1024, 1, 32, b) })
-	b.Run(" Time: 5, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2d, 5, 32*1024, 1, 32, b) })
-	b.Run(" Time: 3, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2d, 3, 64*1024, 4, 32, b) })
-	b.Run(" Time: 4, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2d, 4, 64*1024, 4, 32, b) })
-	b.Run(" Time: 5, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2d, 5, 64*1024, 4, 32, b) })
-}
-
-func BenchmarkArgon2id(b *testing.B) {
-	b.Run(" Time: 3, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2id, 3, 32*1024, 1, 32, b) })
-	b.Run(" Time: 4, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2id, 4, 32*1024, 1, 32, b) })
-	b.Run(" Time: 5, Memory: 32 MB, Threads: 1", func(b *testing.B) { benchmarkArgon2(argon2id, 5, 32*1024, 1, 32, b) })
-	b.Run(" Time: 3, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2id, 3, 64*1024, 4, 32, b) })
-	b.Run(" Time: 4, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2id, 4, 64*1024, 4, 32, b) })
-	b.Run(" Time: 5, Memory: 64 MB, Threads: 4", func(b *testing.B) { benchmarkArgon2(argon2id, 5, 64*1024, 4, 32, b) })
-}
-
-// Generated with the CLI of https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
-var testVectors = []struct {
-	mode         int
-	time, memory uint32
-	threads      uint8
-	hash         string
-}{
-	{
-		mode: argon2i, time: 1, memory: 64, threads: 1,
-		hash: "b9c401d1844a67d50eae3967dc28870b22e508092e861a37",
-	},
-	{
-		mode: argon2d, time: 1, memory: 64, threads: 1,
-		hash: "8727405fd07c32c78d64f547f24150d3f2e703a89f981a19",
-	},
-	{
-		mode: argon2id, time: 1, memory: 64, threads: 1,
-		hash: "655ad15eac652dc59f7170a7332bf49b8469be1fdb9c28bb",
-	},
-	{
-		mode: argon2i, time: 2, memory: 64, threads: 1,
-		hash: "8cf3d8f76a6617afe35fac48eb0b7433a9a670ca4a07ed64",
-	},
-	{
-		mode: argon2d, time: 2, memory: 64, threads: 1,
-		hash: "3be9ec79a69b75d3752acb59a1fbb8b295a46529c48fbb75",
-	},
-	{
-		mode: argon2id, time: 2, memory: 64, threads: 1,
-		hash: "068d62b26455936aa6ebe60060b0a65870dbfa3ddf8d41f7",
-	},
-	{
-		mode: argon2i, time: 2, memory: 64, threads: 2,
-		hash: "2089f3e78a799720f80af806553128f29b132cafe40d059f",
-	},
-	{
-		mode: argon2d, time: 2, memory: 64, threads: 2,
-		hash: "68e2462c98b8bc6bb60ec68db418ae2c9ed24fc6748a40e9",
-	},
-	{
-		mode: argon2id, time: 2, memory: 64, threads: 2,
-		hash: "350ac37222f436ccb5c0972f1ebd3bf6b958bf2071841362",
-	},
-	{
-		mode: argon2i, time: 3, memory: 256, threads: 2,
-		hash: "f5bbf5d4c3836af13193053155b73ec7476a6a2eb93fd5e6",
-	},
-	{
-		mode: argon2d, time: 3, memory: 256, threads: 2,
-		hash: "f4f0669218eaf3641f39cc97efb915721102f4b128211ef2",
-	},
-	{
-		mode: argon2id, time: 3, memory: 256, threads: 2,
-		hash: "4668d30ac4187e6878eedeacf0fd83c5a0a30db2cc16ef0b",
-	},
-	{
-		mode: argon2i, time: 4, memory: 4096, threads: 4,
-		hash: "a11f7b7f3f93f02ad4bddb59ab62d121e278369288a0d0e7",
-	},
-	{
-		mode: argon2d, time: 4, memory: 4096, threads: 4,
-		hash: "935598181aa8dc2b720914aa6435ac8d3e3a4210c5b0fb2d",
-	},
-	{
-		mode: argon2id, time: 4, memory: 4096, threads: 4,
-		hash: "145db9733a9f4ee43edf33c509be96b934d505a4efb33c5a",
-	},
-	{
-		mode: argon2i, time: 4, memory: 1024, threads: 8,
-		hash: "0cdd3956aa35e6b475a7b0c63488822f774f15b43f6e6e17",
-	},
-	{
-		mode: argon2d, time: 4, memory: 1024, threads: 8,
-		hash: "83604fc2ad0589b9d055578f4d3cc55bc616df3578a896e9",
-	},
-	{
-		mode: argon2id, time: 4, memory: 1024, threads: 8,
-		hash: "8dafa8e004f8ea96bf7c0f93eecf67a6047476143d15577f",
-	},
-	{
-		mode: argon2i, time: 2, memory: 64, threads: 3,
-		hash: "5cab452fe6b8479c8661def8cd703b611a3905a6d5477fe6",
-	},
-	{
-		mode: argon2d, time: 2, memory: 64, threads: 3,
-		hash: "22474a423bda2ccd36ec9afd5119e5c8949798cadf659f51",
-	},
-	{
-		mode: argon2id, time: 2, memory: 64, threads: 3,
-		hash: "4a15b31aec7c2590b87d1f520be7d96f56658172deaa3079",
-	},
-	{
-		mode: argon2i, time: 3, memory: 1024, threads: 6,
-		hash: "d236b29c2b2a09babee842b0dec6aa1e83ccbdea8023dced",
-	},
-	{
-		mode: argon2d, time: 3, memory: 1024, threads: 6,
-		hash: "a3351b0319a53229152023d9206902f4ef59661cdca89481",
-	},
-	{
-		mode: argon2id, time: 3, memory: 1024, threads: 6,
-		hash: "1640b932f4b60e272f5d2207b9a9c626ffa1bd88d2349016",
-	},
-}
diff --git a/vendor/golang.org/x/crypto/argon2/blake2b.go b/vendor/golang.org/x/crypto/argon2/blake2b.go
deleted file mode 100644
index 10f4694..0000000
--- a/vendor/golang.org/x/crypto/argon2/blake2b.go
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package argon2
-
-import (
-	"encoding/binary"
-	"hash"
-
-	"golang.org/x/crypto/blake2b"
-)
-
-// blake2bHash computes an arbitrary long hash value of in
-// and writes the hash to out.
-func blake2bHash(out []byte, in []byte) {
-	var b2 hash.Hash
-	if n := len(out); n < blake2b.Size {
-		b2, _ = blake2b.New(n, nil)
-	} else {
-		b2, _ = blake2b.New512(nil)
-	}
-
-	var buffer [blake2b.Size]byte
-	binary.LittleEndian.PutUint32(buffer[:4], uint32(len(out)))
-	b2.Write(buffer[:4])
-	b2.Write(in)
-
-	if len(out) <= blake2b.Size {
-		b2.Sum(out[:0])
-		return
-	}
-
-	outLen := len(out)
-	b2.Sum(buffer[:0])
-	b2.Reset()
-	copy(out, buffer[:32])
-	out = out[32:]
-	for len(out) > blake2b.Size {
-		b2.Write(buffer[:])
-		b2.Sum(buffer[:0])
-		copy(out, buffer[:32])
-		out = out[32:]
-		b2.Reset()
-	}
-
-	if outLen%blake2b.Size > 0 { // outLen > 64
-		r := ((outLen + 31) / 32) - 2 // ⌈τ /32⌉-2
-		b2, _ = blake2b.New(outLen-32*r, nil)
-	}
-	b2.Write(buffer[:])
-	b2.Sum(out[:0])
-}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_amd64.go b/vendor/golang.org/x/crypto/argon2/blamka_amd64.go
deleted file mode 100644
index 2fc1ec0..0000000
--- a/vendor/golang.org/x/crypto/argon2/blamka_amd64.go
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-package argon2
-
-import "golang.org/x/sys/cpu"
-
-func init() {
-	useSSE4 = cpu.X86.HasSSE41
-}
-
-//go:noescape
-func mixBlocksSSE2(out, a, b, c *block)
-
-//go:noescape
-func xorBlocksSSE2(out, a, b, c *block)
-
-//go:noescape
-func blamkaSSE4(b *block)
-
-func processBlockSSE(out, in1, in2 *block, xor bool) {
-	var t block
-	mixBlocksSSE2(&t, in1, in2, &t)
-	if useSSE4 {
-		blamkaSSE4(&t)
-	} else {
-		for i := 0; i < blockLength; i += 16 {
-			blamkaGeneric(
-				&t[i+0], &t[i+1], &t[i+2], &t[i+3],
-				&t[i+4], &t[i+5], &t[i+6], &t[i+7],
-				&t[i+8], &t[i+9], &t[i+10], &t[i+11],
-				&t[i+12], &t[i+13], &t[i+14], &t[i+15],
-			)
-		}
-		for i := 0; i < blockLength/8; i += 2 {
-			blamkaGeneric(
-				&t[i], &t[i+1], &t[16+i], &t[16+i+1],
-				&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
-				&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
-				&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
-			)
-		}
-	}
-	if xor {
-		xorBlocksSSE2(out, in1, in2, &t)
-	} else {
-		mixBlocksSSE2(out, in1, in2, &t)
-	}
-}
-
-func processBlock(out, in1, in2 *block) {
-	processBlockSSE(out, in1, in2, false)
-}
-
-func processBlockXOR(out, in1, in2 *block) {
-	processBlockSSE(out, in1, in2, true)
-}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_amd64.s b/vendor/golang.org/x/crypto/argon2/blamka_amd64.s
deleted file mode 100644
index 74a6e73..0000000
--- a/vendor/golang.org/x/crypto/argon2/blamka_amd64.s
+++ /dev/null
@@ -1,243 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-#include "textflag.h"
-
-DATA ·c40<>+0x00(SB)/8, $0x0201000706050403
-DATA ·c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
-GLOBL ·c40<>(SB), (NOPTR+RODATA), $16
-
-DATA ·c48<>+0x00(SB)/8, $0x0100070605040302
-DATA ·c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
-GLOBL ·c48<>(SB), (NOPTR+RODATA), $16
-
-#define SHUFFLE(v2, v3, v4, v5, v6, v7, t1, t2) \
-	MOVO       v4, t1; \
-	MOVO       v5, v4; \
-	MOVO       t1, v5; \
-	MOVO       v6, t1; \
-	PUNPCKLQDQ v6, t2; \
-	PUNPCKHQDQ v7, v6; \
-	PUNPCKHQDQ t2, v6; \
-	PUNPCKLQDQ v7, t2; \
-	MOVO       t1, v7; \
-	MOVO       v2, t1; \
-	PUNPCKHQDQ t2, v7; \
-	PUNPCKLQDQ v3, t2; \
-	PUNPCKHQDQ t2, v2; \
-	PUNPCKLQDQ t1, t2; \
-	PUNPCKHQDQ t2, v3
-
-#define SHUFFLE_INV(v2, v3, v4, v5, v6, v7, t1, t2) \
-	MOVO       v4, t1; \
-	MOVO       v5, v4; \
-	MOVO       t1, v5; \
-	MOVO       v2, t1; \
-	PUNPCKLQDQ v2, t2; \
-	PUNPCKHQDQ v3, v2; \
-	PUNPCKHQDQ t2, v2; \
-	PUNPCKLQDQ v3, t2; \
-	MOVO       t1, v3; \
-	MOVO       v6, t1; \
-	PUNPCKHQDQ t2, v3; \
-	PUNPCKLQDQ v7, t2; \
-	PUNPCKHQDQ t2, v6; \
-	PUNPCKLQDQ t1, t2; \
-	PUNPCKHQDQ t2, v7
-
-#define HALF_ROUND(v0, v1, v2, v3, v4, v5, v6, v7, t0, c40, c48) \
-	MOVO    v0, t0;        \
-	PMULULQ v2, t0;        \
-	PADDQ   v2, v0;        \
-	PADDQ   t0, v0;        \
-	PADDQ   t0, v0;        \
-	PXOR    v0, v6;        \
-	PSHUFD  $0xB1, v6, v6; \
-	MOVO    v4, t0;        \
-	PMULULQ v6, t0;        \
-	PADDQ   v6, v4;        \
-	PADDQ   t0, v4;        \
-	PADDQ   t0, v4;        \
-	PXOR    v4, v2;        \
-	PSHUFB  c40, v2;       \
-	MOVO    v0, t0;        \
-	PMULULQ v2, t0;        \
-	PADDQ   v2, v0;        \
-	PADDQ   t0, v0;        \
-	PADDQ   t0, v0;        \
-	PXOR    v0, v6;        \
-	PSHUFB  c48, v6;       \
-	MOVO    v4, t0;        \
-	PMULULQ v6, t0;        \
-	PADDQ   v6, v4;        \
-	PADDQ   t0, v4;        \
-	PADDQ   t0, v4;        \
-	PXOR    v4, v2;        \
-	MOVO    v2, t0;        \
-	PADDQ   v2, t0;        \
-	PSRLQ   $63, v2;       \
-	PXOR    t0, v2;        \
-	MOVO    v1, t0;        \
-	PMULULQ v3, t0;        \
-	PADDQ   v3, v1;        \
-	PADDQ   t0, v1;        \
-	PADDQ   t0, v1;        \
-	PXOR    v1, v7;        \
-	PSHUFD  $0xB1, v7, v7; \
-	MOVO    v5, t0;        \
-	PMULULQ v7, t0;        \
-	PADDQ   v7, v5;        \
-	PADDQ   t0, v5;        \
-	PADDQ   t0, v5;        \
-	PXOR    v5, v3;        \
-	PSHUFB  c40, v3;       \
-	MOVO    v1, t0;        \
-	PMULULQ v3, t0;        \
-	PADDQ   v3, v1;        \
-	PADDQ   t0, v1;        \
-	PADDQ   t0, v1;        \
-	PXOR    v1, v7;        \
-	PSHUFB  c48, v7;       \
-	MOVO    v5, t0;        \
-	PMULULQ v7, t0;        \
-	PADDQ   v7, v5;        \
-	PADDQ   t0, v5;        \
-	PADDQ   t0, v5;        \
-	PXOR    v5, v3;        \
-	MOVO    v3, t0;        \
-	PADDQ   v3, t0;        \
-	PSRLQ   $63, v3;       \
-	PXOR    t0, v3
-
-#define LOAD_MSG_0(block, off) \
-	MOVOU 8*(off+0)(block), X0;  \
-	MOVOU 8*(off+2)(block), X1;  \
-	MOVOU 8*(off+4)(block), X2;  \
-	MOVOU 8*(off+6)(block), X3;  \
-	MOVOU 8*(off+8)(block), X4;  \
-	MOVOU 8*(off+10)(block), X5; \
-	MOVOU 8*(off+12)(block), X6; \
-	MOVOU 8*(off+14)(block), X7
-
-#define STORE_MSG_0(block, off) \
-	MOVOU X0, 8*(off+0)(block);  \
-	MOVOU X1, 8*(off+2)(block);  \
-	MOVOU X2, 8*(off+4)(block);  \
-	MOVOU X3, 8*(off+6)(block);  \
-	MOVOU X4, 8*(off+8)(block);  \
-	MOVOU X5, 8*(off+10)(block); \
-	MOVOU X6, 8*(off+12)(block); \
-	MOVOU X7, 8*(off+14)(block)
-
-#define LOAD_MSG_1(block, off) \
-	MOVOU 8*off+0*8(block), X0;  \
-	MOVOU 8*off+16*8(block), X1; \
-	MOVOU 8*off+32*8(block), X2; \
-	MOVOU 8*off+48*8(block), X3; \
-	MOVOU 8*off+64*8(block), X4; \
-	MOVOU 8*off+80*8(block), X5; \
-	MOVOU 8*off+96*8(block), X6; \
-	MOVOU 8*off+112*8(block), X7
-
-#define STORE_MSG_1(block, off) \
-	MOVOU X0, 8*off+0*8(block);  \
-	MOVOU X1, 8*off+16*8(block); \
-	MOVOU X2, 8*off+32*8(block); \
-	MOVOU X3, 8*off+48*8(block); \
-	MOVOU X4, 8*off+64*8(block); \
-	MOVOU X5, 8*off+80*8(block); \
-	MOVOU X6, 8*off+96*8(block); \
-	MOVOU X7, 8*off+112*8(block)
-
-#define BLAMKA_ROUND_0(block, off, t0, t1, c40, c48) \
-	LOAD_MSG_0(block, off);                                   \
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
-	SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1);                  \
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1);              \
-	STORE_MSG_0(block, off)
-
-#define BLAMKA_ROUND_1(block, off, t0, t1, c40, c48) \
-	LOAD_MSG_1(block, off);                                   \
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
-	SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1);                  \
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1);              \
-	STORE_MSG_1(block, off)
-
-// func blamkaSSE4(b *block)
-TEXT ·blamkaSSE4(SB), 4, $0-8
-	MOVQ b+0(FP), AX
-
-	MOVOU ·c40<>(SB), X10
-	MOVOU ·c48<>(SB), X11
-
-	BLAMKA_ROUND_0(AX, 0, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 16, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 32, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 48, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 64, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 80, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 96, X8, X9, X10, X11)
-	BLAMKA_ROUND_0(AX, 112, X8, X9, X10, X11)
-
-	BLAMKA_ROUND_1(AX, 0, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 2, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 4, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 6, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 8, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 10, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 12, X8, X9, X10, X11)
-	BLAMKA_ROUND_1(AX, 14, X8, X9, X10, X11)
-	RET
-
-// func mixBlocksSSE2(out, a, b, c *block)
-TEXT ·mixBlocksSSE2(SB), 4, $0-32
-	MOVQ out+0(FP), DX
-	MOVQ a+8(FP), AX
-	MOVQ b+16(FP), BX
-	MOVQ a+24(FP), CX
-	MOVQ $128, BP
-
-loop:
-	MOVOU 0(AX), X0
-	MOVOU 0(BX), X1
-	MOVOU 0(CX), X2
-	PXOR  X1, X0
-	PXOR  X2, X0
-	MOVOU X0, 0(DX)
-	ADDQ  $16, AX
-	ADDQ  $16, BX
-	ADDQ  $16, CX
-	ADDQ  $16, DX
-	SUBQ  $2, BP
-	JA    loop
-	RET
-
-// func xorBlocksSSE2(out, a, b, c *block)
-TEXT ·xorBlocksSSE2(SB), 4, $0-32
-	MOVQ out+0(FP), DX
-	MOVQ a+8(FP), AX
-	MOVQ b+16(FP), BX
-	MOVQ a+24(FP), CX
-	MOVQ $128, BP
-
-loop:
-	MOVOU 0(AX), X0
-	MOVOU 0(BX), X1
-	MOVOU 0(CX), X2
-	MOVOU 0(DX), X3
-	PXOR  X1, X0
-	PXOR  X2, X0
-	PXOR  X3, X0
-	MOVOU X0, 0(DX)
-	ADDQ  $16, AX
-	ADDQ  $16, BX
-	ADDQ  $16, CX
-	ADDQ  $16, DX
-	SUBQ  $2, BP
-	JA    loop
-	RET
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_generic.go b/vendor/golang.org/x/crypto/argon2/blamka_generic.go
deleted file mode 100644
index a481b22..0000000
--- a/vendor/golang.org/x/crypto/argon2/blamka_generic.go
+++ /dev/null
@@ -1,163 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package argon2
-
-var useSSE4 bool
-
-func processBlockGeneric(out, in1, in2 *block, xor bool) {
-	var t block
-	for i := range t {
-		t[i] = in1[i] ^ in2[i]
-	}
-	for i := 0; i < blockLength; i += 16 {
-		blamkaGeneric(
-			&t[i+0], &t[i+1], &t[i+2], &t[i+3],
-			&t[i+4], &t[i+5], &t[i+6], &t[i+7],
-			&t[i+8], &t[i+9], &t[i+10], &t[i+11],
-			&t[i+12], &t[i+13], &t[i+14], &t[i+15],
-		)
-	}
-	for i := 0; i < blockLength/8; i += 2 {
-		blamkaGeneric(
-			&t[i], &t[i+1], &t[16+i], &t[16+i+1],
-			&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
-			&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
-			&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
-		)
-	}
-	if xor {
-		for i := range t {
-			out[i] ^= in1[i] ^ in2[i] ^ t[i]
-		}
-	} else {
-		for i := range t {
-			out[i] = in1[i] ^ in2[i] ^ t[i]
-		}
-	}
-}
-
-func blamkaGeneric(t00, t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15 *uint64) {
-	v00, v01, v02, v03 := *t00, *t01, *t02, *t03
-	v04, v05, v06, v07 := *t04, *t05, *t06, *t07
-	v08, v09, v10, v11 := *t08, *t09, *t10, *t11
-	v12, v13, v14, v15 := *t12, *t13, *t14, *t15
-
-	v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
-	v12 ^= v00
-	v12 = v12>>32 | v12<<32
-	v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
-	v04 ^= v08
-	v04 = v04>>24 | v04<<40
-
-	v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
-	v12 ^= v00
-	v12 = v12>>16 | v12<<48
-	v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
-	v04 ^= v08
-	v04 = v04>>63 | v04<<1
-
-	v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
-	v13 ^= v01
-	v13 = v13>>32 | v13<<32
-	v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
-	v05 ^= v09
-	v05 = v05>>24 | v05<<40
-
-	v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
-	v13 ^= v01
-	v13 = v13>>16 | v13<<48
-	v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
-	v05 ^= v09
-	v05 = v05>>63 | v05<<1
-
-	v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
-	v14 ^= v02
-	v14 = v14>>32 | v14<<32
-	v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
-	v06 ^= v10
-	v06 = v06>>24 | v06<<40
-
-	v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
-	v14 ^= v02
-	v14 = v14>>16 | v14<<48
-	v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
-	v06 ^= v10
-	v06 = v06>>63 | v06<<1
-
-	v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
-	v15 ^= v03
-	v15 = v15>>32 | v15<<32
-	v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
-	v07 ^= v11
-	v07 = v07>>24 | v07<<40
-
-	v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
-	v15 ^= v03
-	v15 = v15>>16 | v15<<48
-	v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
-	v07 ^= v11
-	v07 = v07>>63 | v07<<1
-
-	v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
-	v15 ^= v00
-	v15 = v15>>32 | v15<<32
-	v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
-	v05 ^= v10
-	v05 = v05>>24 | v05<<40
-
-	v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
-	v15 ^= v00
-	v15 = v15>>16 | v15<<48
-	v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
-	v05 ^= v10
-	v05 = v05>>63 | v05<<1
-
-	v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
-	v12 ^= v01
-	v12 = v12>>32 | v12<<32
-	v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
-	v06 ^= v11
-	v06 = v06>>24 | v06<<40
-
-	v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
-	v12 ^= v01
-	v12 = v12>>16 | v12<<48
-	v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
-	v06 ^= v11
-	v06 = v06>>63 | v06<<1
-
-	v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
-	v13 ^= v02
-	v13 = v13>>32 | v13<<32
-	v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
-	v07 ^= v08
-	v07 = v07>>24 | v07<<40
-
-	v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
-	v13 ^= v02
-	v13 = v13>>16 | v13<<48
-	v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
-	v07 ^= v08
-	v07 = v07>>63 | v07<<1
-
-	v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
-	v14 ^= v03
-	v14 = v14>>32 | v14<<32
-	v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
-	v04 ^= v09
-	v04 = v04>>24 | v04<<40
-
-	v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
-	v14 ^= v03
-	v14 = v14>>16 | v14<<48
-	v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
-	v04 ^= v09
-	v04 = v04>>63 | v04<<1
-
-	*t00, *t01, *t02, *t03 = v00, v01, v02, v03
-	*t04, *t05, *t06, *t07 = v04, v05, v06, v07
-	*t08, *t09, *t10, *t11 = v08, v09, v10, v11
-	*t12, *t13, *t14, *t15 = v12, v13, v14, v15
-}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_ref.go b/vendor/golang.org/x/crypto/argon2/blamka_ref.go
deleted file mode 100644
index baf7b55..0000000
--- a/vendor/golang.org/x/crypto/argon2/blamka_ref.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64 appengine gccgo
-
-package argon2
-
-func processBlock(out, in1, in2 *block) {
-	processBlockGeneric(out, in1, in2, false)
-}
-
-func processBlockXOR(out, in1, in2 *block) {
-	processBlockGeneric(out, in1, in2, true)
-}
diff --git a/vendor/golang.org/x/crypto/bcrypt/bcrypt_test.go b/vendor/golang.org/x/crypto/bcrypt/bcrypt_test.go
deleted file mode 100644
index aecf759..0000000
--- a/vendor/golang.org/x/crypto/bcrypt/bcrypt_test.go
+++ /dev/null
@@ -1,243 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bcrypt
-
-import (
-	"bytes"
-	"fmt"
-	"testing"
-)
-
-func TestBcryptingIsEasy(t *testing.T) {
-	pass := []byte("mypassword")
-	hp, err := GenerateFromPassword(pass, 0)
-	if err != nil {
-		t.Fatalf("GenerateFromPassword error: %s", err)
-	}
-
-	if CompareHashAndPassword(hp, pass) != nil {
-		t.Errorf("%v should hash %s correctly", hp, pass)
-	}
-
-	notPass := "notthepass"
-	err = CompareHashAndPassword(hp, []byte(notPass))
-	if err != ErrMismatchedHashAndPassword {
-		t.Errorf("%v and %s should be mismatched", hp, notPass)
-	}
-}
-
-func TestBcryptingIsCorrect(t *testing.T) {
-	pass := []byte("allmine")
-	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
-	expectedHash := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
-
-	hash, err := bcrypt(pass, 10, salt)
-	if err != nil {
-		t.Fatalf("bcrypt blew up: %v", err)
-	}
-	if !bytes.HasSuffix(expectedHash, hash) {
-		t.Errorf("%v should be the suffix of %v", hash, expectedHash)
-	}
-
-	h, err := newFromHash(expectedHash)
-	if err != nil {
-		t.Errorf("Unable to parse %s: %v", string(expectedHash), err)
-	}
-
-	// This is not the safe way to compare these hashes. We do this only for
-	// testing clarity. Use bcrypt.CompareHashAndPassword()
-	if err == nil && !bytes.Equal(expectedHash, h.Hash()) {
-		t.Errorf("Parsed hash %v should equal %v", h.Hash(), expectedHash)
-	}
-}
-
-func TestVeryShortPasswords(t *testing.T) {
-	key := []byte("k")
-	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
-	_, err := bcrypt(key, 10, salt)
-	if err != nil {
-		t.Errorf("One byte key resulted in error: %s", err)
-	}
-}
-
-func TestTooLongPasswordsWork(t *testing.T) {
-	salt := []byte("XajjQvNhvvRt5GSeFk1xFe")
-	// One byte over the usual 56 byte limit that blowfish has
-	tooLongPass := []byte("012345678901234567890123456789012345678901234567890123456")
-	tooLongExpected := []byte("$2a$10$XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C")
-	hash, err := bcrypt(tooLongPass, 10, salt)
-	if err != nil {
-		t.Fatalf("bcrypt blew up on long password: %v", err)
-	}
-	if !bytes.HasSuffix(tooLongExpected, hash) {
-		t.Errorf("%v should be the suffix of %v", hash, tooLongExpected)
-	}
-}
-
-type InvalidHashTest struct {
-	err  error
-	hash []byte
-}
-
-var invalidTests = []InvalidHashTest{
-	{ErrHashTooShort, []byte("$2a$10$fooo")},
-	{ErrHashTooShort, []byte("$2a")},
-	{HashVersionTooNewError('3'), []byte("$3a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
-	{InvalidHashPrefixError('%'), []byte("%2a$10$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
-	{InvalidCostError(32), []byte("$2a$32$sssssssssssssssssssssshhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh")},
-}
-
-func TestInvalidHashErrors(t *testing.T) {
-	check := func(name string, expected, err error) {
-		if err == nil {
-			t.Errorf("%s: Should have returned an error", name)
-		}
-		if err != nil && err != expected {
-			t.Errorf("%s gave err %v but should have given %v", name, err, expected)
-		}
-	}
-	for _, iht := range invalidTests {
-		_, err := newFromHash(iht.hash)
-		check("newFromHash", iht.err, err)
-		err = CompareHashAndPassword(iht.hash, []byte("anything"))
-		check("CompareHashAndPassword", iht.err, err)
-	}
-}
-
-func TestUnpaddedBase64Encoding(t *testing.T) {
-	original := []byte{101, 201, 101, 75, 19, 227, 199, 20, 239, 236, 133, 32, 30, 109, 243, 30}
-	encodedOriginal := []byte("XajjQvNhvvRt5GSeFk1xFe")
-
-	encoded := base64Encode(original)
-
-	if !bytes.Equal(encodedOriginal, encoded) {
-		t.Errorf("Encoded %v should have equaled %v", encoded, encodedOriginal)
-	}
-
-	decoded, err := base64Decode(encodedOriginal)
-	if err != nil {
-		t.Fatalf("base64Decode blew up: %s", err)
-	}
-
-	if !bytes.Equal(decoded, original) {
-		t.Errorf("Decoded %v should have equaled %v", decoded, original)
-	}
-}
-
-func TestCost(t *testing.T) {
-	suffix := "XajjQvNhvvRt5GSeFk1xFe5l47dONXg781AmZtd869sO8zfsHuw7C"
-	for _, vers := range []string{"2a", "2"} {
-		for _, cost := range []int{4, 10} {
-			s := fmt.Sprintf("$%s$%02d$%s", vers, cost, suffix)
-			h := []byte(s)
-			actual, err := Cost(h)
-			if err != nil {
-				t.Errorf("Cost, error: %s", err)
-				continue
-			}
-			if actual != cost {
-				t.Errorf("Cost, expected: %d, actual: %d", cost, actual)
-			}
-		}
-	}
-	_, err := Cost([]byte("$a$a$" + suffix))
-	if err == nil {
-		t.Errorf("Cost, malformed but no error returned")
-	}
-}
-
-func TestCostValidationInHash(t *testing.T) {
-	if testing.Short() {
-		return
-	}
-
-	pass := []byte("mypassword")
-
-	for c := 0; c < MinCost; c++ {
-		p, _ := newFromPassword(pass, c)
-		if p.cost != DefaultCost {
-			t.Errorf("newFromPassword should default costs below %d to %d, but was %d", MinCost, DefaultCost, p.cost)
-		}
-	}
-
-	p, _ := newFromPassword(pass, 14)
-	if p.cost != 14 {
-		t.Errorf("newFromPassword should default cost to 14, but was %d", p.cost)
-	}
-
-	hp, _ := newFromHash(p.Hash())
-	if p.cost != hp.cost {
-		t.Errorf("newFromHash should maintain the cost at %d, but was %d", p.cost, hp.cost)
-	}
-
-	_, err := newFromPassword(pass, 32)
-	if err == nil {
-		t.Fatalf("newFromPassword: should return a cost error")
-	}
-	if err != InvalidCostError(32) {
-		t.Errorf("newFromPassword: should return cost error, got %#v", err)
-	}
-}
-
-func TestCostReturnsWithLeadingZeroes(t *testing.T) {
-	hp, _ := newFromPassword([]byte("abcdefgh"), 7)
-	cost := hp.Hash()[4:7]
-	expected := []byte("07$")
-
-	if !bytes.Equal(expected, cost) {
-		t.Errorf("single digit costs in hash should have leading zeros: was %v instead of %v", cost, expected)
-	}
-}
-
-func TestMinorNotRequired(t *testing.T) {
-	noMinorHash := []byte("$2$10$XajjQvNhvvRt5GSeFk1xFeyqRrsxkhBkUiQeg0dt.wU1qD4aFDcga")
-	h, err := newFromHash(noMinorHash)
-	if err != nil {
-		t.Fatalf("No minor hash blew up: %s", err)
-	}
-	if h.minor != 0 {
-		t.Errorf("Should leave minor version at 0, but was %d", h.minor)
-	}
-
-	if !bytes.Equal(noMinorHash, h.Hash()) {
-		t.Errorf("Should generate hash %v, but created %v", noMinorHash, h.Hash())
-	}
-}
-
-func BenchmarkEqual(b *testing.B) {
-	b.StopTimer()
-	passwd := []byte("somepasswordyoulike")
-	hash, _ := GenerateFromPassword(passwd, 10)
-	b.StartTimer()
-	for i := 0; i < b.N; i++ {
-		CompareHashAndPassword(hash, passwd)
-	}
-}
-
-func BenchmarkGeneration(b *testing.B) {
-	b.StopTimer()
-	passwd := []byte("mylongpassword1234")
-	b.StartTimer()
-	for i := 0; i < b.N; i++ {
-		GenerateFromPassword(passwd, 10)
-	}
-}
-
-// See Issue https://github.com/golang/go/issues/20425.
-func TestNoSideEffectsFromCompare(t *testing.T) {
-	source := []byte("passw0rd123456")
-	password := source[:len(source)-6]
-	token := source[len(source)-6:]
-	want := make([]byte, len(source))
-	copy(want, source)
-
-	wantHash := []byte("$2a$10$LK9XRuhNxHHCvjX3tdkRKei1QiCDUKrJRhZv7WWZPuQGRUM92rOUa")
-	_ = CompareHashAndPassword(wantHash, password)
-
-	got := bytes.Join([][]byte{password, token}, []byte(""))
-	if !bytes.Equal(got, want) {
-		t.Errorf("got=%q want=%q", got, want)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b.go b/vendor/golang.org/x/crypto/blake2b/blake2b.go
deleted file mode 100644
index 58ea875..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b.go
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package blake2b implements the BLAKE2b hash algorithm defined by RFC 7693
-// and the extendable output function (XOF) BLAKE2Xb.
-//
-// For a detailed specification of BLAKE2b see https://blake2.net/blake2.pdf
-// and for BLAKE2Xb see https://blake2.net/blake2x.pdf
-//
-// If you aren't sure which function you need, use BLAKE2b (Sum512 or New512).
-// If you need a secret-key MAC (message authentication code), use the New512
-// function with a non-nil key.
-//
-// BLAKE2X is a construction to compute hash values larger than 64 bytes. It
-// can produce hash values between 0 and 4 GiB.
-package blake2b
-
-import (
-	"encoding/binary"
-	"errors"
-	"hash"
-)
-
-const (
-	// The blocksize of BLAKE2b in bytes.
-	BlockSize = 128
-	// The hash size of BLAKE2b-512 in bytes.
-	Size = 64
-	// The hash size of BLAKE2b-384 in bytes.
-	Size384 = 48
-	// The hash size of BLAKE2b-256 in bytes.
-	Size256 = 32
-)
-
-var (
-	useAVX2 bool
-	useAVX  bool
-	useSSE4 bool
-)
-
-var (
-	errKeySize  = errors.New("blake2b: invalid key size")
-	errHashSize = errors.New("blake2b: invalid hash size")
-)
-
-var iv = [8]uint64{
-	0x6a09e667f3bcc908, 0xbb67ae8584caa73b, 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1,
-	0x510e527fade682d1, 0x9b05688c2b3e6c1f, 0x1f83d9abfb41bd6b, 0x5be0cd19137e2179,
-}
-
-// Sum512 returns the BLAKE2b-512 checksum of the data.
-func Sum512(data []byte) [Size]byte {
-	var sum [Size]byte
-	checkSum(&sum, Size, data)
-	return sum
-}
-
-// Sum384 returns the BLAKE2b-384 checksum of the data.
-func Sum384(data []byte) [Size384]byte {
-	var sum [Size]byte
-	var sum384 [Size384]byte
-	checkSum(&sum, Size384, data)
-	copy(sum384[:], sum[:Size384])
-	return sum384
-}
-
-// Sum256 returns the BLAKE2b-256 checksum of the data.
-func Sum256(data []byte) [Size256]byte {
-	var sum [Size]byte
-	var sum256 [Size256]byte
-	checkSum(&sum, Size256, data)
-	copy(sum256[:], sum[:Size256])
-	return sum256
-}
-
-// New512 returns a new hash.Hash computing the BLAKE2b-512 checksum. A non-nil
-// key turns the hash into a MAC. The key must between zero and 64 bytes long.
-func New512(key []byte) (hash.Hash, error) { return newDigest(Size, key) }
-
-// New384 returns a new hash.Hash computing the BLAKE2b-384 checksum. A non-nil
-// key turns the hash into a MAC. The key must between zero and 64 bytes long.
-func New384(key []byte) (hash.Hash, error) { return newDigest(Size384, key) }
-
-// New256 returns a new hash.Hash computing the BLAKE2b-256 checksum. A non-nil
-// key turns the hash into a MAC. The key must between zero and 64 bytes long.
-func New256(key []byte) (hash.Hash, error) { return newDigest(Size256, key) }
-
-// New returns a new hash.Hash computing the BLAKE2b checksum with a custom length.
-// A non-nil key turns the hash into a MAC. The key must between zero and 64 bytes long.
-// The hash size can be a value between 1 and 64 but it is highly recommended to use
-// values equal or greater than:
-// - 32 if BLAKE2b is used as a hash function (The key is zero bytes long).
-// - 16 if BLAKE2b is used as a MAC function (The key is at least 16 bytes long).
-// When the key is nil, the returned hash.Hash implements BinaryMarshaler
-// and BinaryUnmarshaler for state (de)serialization as documented by hash.Hash.
-func New(size int, key []byte) (hash.Hash, error) { return newDigest(size, key) }
-
-func newDigest(hashSize int, key []byte) (*digest, error) {
-	if hashSize < 1 || hashSize > Size {
-		return nil, errHashSize
-	}
-	if len(key) > Size {
-		return nil, errKeySize
-	}
-	d := &digest{
-		size:   hashSize,
-		keyLen: len(key),
-	}
-	copy(d.key[:], key)
-	d.Reset()
-	return d, nil
-}
-
-func checkSum(sum *[Size]byte, hashSize int, data []byte) {
-	h := iv
-	h[0] ^= uint64(hashSize) | (1 << 16) | (1 << 24)
-	var c [2]uint64
-
-	if length := len(data); length > BlockSize {
-		n := length &^ (BlockSize - 1)
-		if length == n {
-			n -= BlockSize
-		}
-		hashBlocks(&h, &c, 0, data[:n])
-		data = data[n:]
-	}
-
-	var block [BlockSize]byte
-	offset := copy(block[:], data)
-	remaining := uint64(BlockSize - offset)
-	if c[0] < remaining {
-		c[1]--
-	}
-	c[0] -= remaining
-
-	hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:])
-
-	for i, v := range h[:(hashSize+7)/8] {
-		binary.LittleEndian.PutUint64(sum[8*i:], v)
-	}
-}
-
-type digest struct {
-	h      [8]uint64
-	c      [2]uint64
-	size   int
-	block  [BlockSize]byte
-	offset int
-
-	key    [BlockSize]byte
-	keyLen int
-}
-
-const (
-	magic         = "b2b"
-	marshaledSize = len(magic) + 8*8 + 2*8 + 1 + BlockSize + 1
-)
-
-func (d *digest) MarshalBinary() ([]byte, error) {
-	if d.keyLen != 0 {
-		return nil, errors.New("crypto/blake2b: cannot marshal MACs")
-	}
-	b := make([]byte, 0, marshaledSize)
-	b = append(b, magic...)
-	for i := 0; i < 8; i++ {
-		b = appendUint64(b, d.h[i])
-	}
-	b = appendUint64(b, d.c[0])
-	b = appendUint64(b, d.c[1])
-	// Maximum value for size is 64
-	b = append(b, byte(d.size))
-	b = append(b, d.block[:]...)
-	b = append(b, byte(d.offset))
-	return b, nil
-}
-
-func (d *digest) UnmarshalBinary(b []byte) error {
-	if len(b) < len(magic) || string(b[:len(magic)]) != magic {
-		return errors.New("crypto/blake2b: invalid hash state identifier")
-	}
-	if len(b) != marshaledSize {
-		return errors.New("crypto/blake2b: invalid hash state size")
-	}
-	b = b[len(magic):]
-	for i := 0; i < 8; i++ {
-		b, d.h[i] = consumeUint64(b)
-	}
-	b, d.c[0] = consumeUint64(b)
-	b, d.c[1] = consumeUint64(b)
-	d.size = int(b[0])
-	b = b[1:]
-	copy(d.block[:], b[:BlockSize])
-	b = b[BlockSize:]
-	d.offset = int(b[0])
-	return nil
-}
-
-func (d *digest) BlockSize() int { return BlockSize }
-
-func (d *digest) Size() int { return d.size }
-
-func (d *digest) Reset() {
-	d.h = iv
-	d.h[0] ^= uint64(d.size) | (uint64(d.keyLen) << 8) | (1 << 16) | (1 << 24)
-	d.offset, d.c[0], d.c[1] = 0, 0, 0
-	if d.keyLen > 0 {
-		d.block = d.key
-		d.offset = BlockSize
-	}
-}
-
-func (d *digest) Write(p []byte) (n int, err error) {
-	n = len(p)
-
-	if d.offset > 0 {
-		remaining := BlockSize - d.offset
-		if n <= remaining {
-			d.offset += copy(d.block[d.offset:], p)
-			return
-		}
-		copy(d.block[d.offset:], p[:remaining])
-		hashBlocks(&d.h, &d.c, 0, d.block[:])
-		d.offset = 0
-		p = p[remaining:]
-	}
-
-	if length := len(p); length > BlockSize {
-		nn := length &^ (BlockSize - 1)
-		if length == nn {
-			nn -= BlockSize
-		}
-		hashBlocks(&d.h, &d.c, 0, p[:nn])
-		p = p[nn:]
-	}
-
-	if len(p) > 0 {
-		d.offset += copy(d.block[:], p)
-	}
-
-	return
-}
-
-func (d *digest) Sum(sum []byte) []byte {
-	var hash [Size]byte
-	d.finalize(&hash)
-	return append(sum, hash[:d.size]...)
-}
-
-func (d *digest) finalize(hash *[Size]byte) {
-	var block [BlockSize]byte
-	copy(block[:], d.block[:d.offset])
-	remaining := uint64(BlockSize - d.offset)
-
-	c := d.c
-	if c[0] < remaining {
-		c[1]--
-	}
-	c[0] -= remaining
-
-	h := d.h
-	hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:])
-
-	for i, v := range h {
-		binary.LittleEndian.PutUint64(hash[8*i:], v)
-	}
-}
-
-func appendUint64(b []byte, x uint64) []byte {
-	var a [8]byte
-	binary.BigEndian.PutUint64(a[:], x)
-	return append(b, a[:]...)
-}
-
-func appendUint32(b []byte, x uint32) []byte {
-	var a [4]byte
-	binary.BigEndian.PutUint32(a[:], x)
-	return append(b, a[:]...)
-}
-
-func consumeUint64(b []byte) ([]byte, uint64) {
-	x := binary.BigEndian.Uint64(b)
-	return b[8:], x
-}
-
-func consumeUint32(b []byte) ([]byte, uint32) {
-	x := binary.BigEndian.Uint32(b)
-	return b[4:], x
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go b/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go
deleted file mode 100644
index 4d31dd0..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.go
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7,amd64,!gccgo,!appengine
-
-package blake2b
-
-import "golang.org/x/sys/cpu"
-
-func init() {
-	useAVX2 = cpu.X86.HasAVX2
-	useAVX = cpu.X86.HasAVX
-	useSSE4 = cpu.X86.HasSSE41
-}
-
-//go:noescape
-func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-
-//go:noescape
-func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-
-//go:noescape
-func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-
-func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
-	switch {
-	case useAVX2:
-		hashBlocksAVX2(h, c, flag, blocks)
-	case useAVX:
-		hashBlocksAVX(h, c, flag, blocks)
-	case useSSE4:
-		hashBlocksSSE4(h, c, flag, blocks)
-	default:
-		hashBlocksGeneric(h, c, flag, blocks)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.s b/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.s
deleted file mode 100644
index 5593b1b..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2bAVX2_amd64.s
+++ /dev/null
@@ -1,750 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7,amd64,!gccgo,!appengine
-
-#include "textflag.h"
-
-DATA ·AVX2_iv0<>+0x00(SB)/8, $0x6a09e667f3bcc908
-DATA ·AVX2_iv0<>+0x08(SB)/8, $0xbb67ae8584caa73b
-DATA ·AVX2_iv0<>+0x10(SB)/8, $0x3c6ef372fe94f82b
-DATA ·AVX2_iv0<>+0x18(SB)/8, $0xa54ff53a5f1d36f1
-GLOBL ·AVX2_iv0<>(SB), (NOPTR+RODATA), $32
-
-DATA ·AVX2_iv1<>+0x00(SB)/8, $0x510e527fade682d1
-DATA ·AVX2_iv1<>+0x08(SB)/8, $0x9b05688c2b3e6c1f
-DATA ·AVX2_iv1<>+0x10(SB)/8, $0x1f83d9abfb41bd6b
-DATA ·AVX2_iv1<>+0x18(SB)/8, $0x5be0cd19137e2179
-GLOBL ·AVX2_iv1<>(SB), (NOPTR+RODATA), $32
-
-DATA ·AVX2_c40<>+0x00(SB)/8, $0x0201000706050403
-DATA ·AVX2_c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
-DATA ·AVX2_c40<>+0x10(SB)/8, $0x0201000706050403
-DATA ·AVX2_c40<>+0x18(SB)/8, $0x0a09080f0e0d0c0b
-GLOBL ·AVX2_c40<>(SB), (NOPTR+RODATA), $32
-
-DATA ·AVX2_c48<>+0x00(SB)/8, $0x0100070605040302
-DATA ·AVX2_c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
-DATA ·AVX2_c48<>+0x10(SB)/8, $0x0100070605040302
-DATA ·AVX2_c48<>+0x18(SB)/8, $0x09080f0e0d0c0b0a
-GLOBL ·AVX2_c48<>(SB), (NOPTR+RODATA), $32
-
-DATA ·AVX_iv0<>+0x00(SB)/8, $0x6a09e667f3bcc908
-DATA ·AVX_iv0<>+0x08(SB)/8, $0xbb67ae8584caa73b
-GLOBL ·AVX_iv0<>(SB), (NOPTR+RODATA), $16
-
-DATA ·AVX_iv1<>+0x00(SB)/8, $0x3c6ef372fe94f82b
-DATA ·AVX_iv1<>+0x08(SB)/8, $0xa54ff53a5f1d36f1
-GLOBL ·AVX_iv1<>(SB), (NOPTR+RODATA), $16
-
-DATA ·AVX_iv2<>+0x00(SB)/8, $0x510e527fade682d1
-DATA ·AVX_iv2<>+0x08(SB)/8, $0x9b05688c2b3e6c1f
-GLOBL ·AVX_iv2<>(SB), (NOPTR+RODATA), $16
-
-DATA ·AVX_iv3<>+0x00(SB)/8, $0x1f83d9abfb41bd6b
-DATA ·AVX_iv3<>+0x08(SB)/8, $0x5be0cd19137e2179
-GLOBL ·AVX_iv3<>(SB), (NOPTR+RODATA), $16
-
-DATA ·AVX_c40<>+0x00(SB)/8, $0x0201000706050403
-DATA ·AVX_c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
-GLOBL ·AVX_c40<>(SB), (NOPTR+RODATA), $16
-
-DATA ·AVX_c48<>+0x00(SB)/8, $0x0100070605040302
-DATA ·AVX_c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
-GLOBL ·AVX_c48<>(SB), (NOPTR+RODATA), $16
-
-#define VPERMQ_0x39_Y1_Y1 BYTE $0xc4; BYTE $0xe3; BYTE $0xfd; BYTE $0x00; BYTE $0xc9; BYTE $0x39
-#define VPERMQ_0x93_Y1_Y1 BYTE $0xc4; BYTE $0xe3; BYTE $0xfd; BYTE $0x00; BYTE $0xc9; BYTE $0x93
-#define VPERMQ_0x4E_Y2_Y2 BYTE $0xc4; BYTE $0xe3; BYTE $0xfd; BYTE $0x00; BYTE $0xd2; BYTE $0x4e
-#define VPERMQ_0x93_Y3_Y3 BYTE $0xc4; BYTE $0xe3; BYTE $0xfd; BYTE $0x00; BYTE $0xdb; BYTE $0x93
-#define VPERMQ_0x39_Y3_Y3 BYTE $0xc4; BYTE $0xe3; BYTE $0xfd; BYTE $0x00; BYTE $0xdb; BYTE $0x39
-
-#define ROUND_AVX2(m0, m1, m2, m3, t, c40, c48) \
-	VPADDQ  m0, Y0, Y0;   \
-	VPADDQ  Y1, Y0, Y0;   \
-	VPXOR   Y0, Y3, Y3;   \
-	VPSHUFD $-79, Y3, Y3; \
-	VPADDQ  Y3, Y2, Y2;   \
-	VPXOR   Y2, Y1, Y1;   \
-	VPSHUFB c40, Y1, Y1;  \
-	VPADDQ  m1, Y0, Y0;   \
-	VPADDQ  Y1, Y0, Y0;   \
-	VPXOR   Y0, Y3, Y3;   \
-	VPSHUFB c48, Y3, Y3;  \
-	VPADDQ  Y3, Y2, Y2;   \
-	VPXOR   Y2, Y1, Y1;   \
-	VPADDQ  Y1, Y1, t;    \
-	VPSRLQ  $63, Y1, Y1;  \
-	VPXOR   t, Y1, Y1;    \
-	VPERMQ_0x39_Y1_Y1;    \
-	VPERMQ_0x4E_Y2_Y2;    \
-	VPERMQ_0x93_Y3_Y3;    \
-	VPADDQ  m2, Y0, Y0;   \
-	VPADDQ  Y1, Y0, Y0;   \
-	VPXOR   Y0, Y3, Y3;   \
-	VPSHUFD $-79, Y3, Y3; \
-	VPADDQ  Y3, Y2, Y2;   \
-	VPXOR   Y2, Y1, Y1;   \
-	VPSHUFB c40, Y1, Y1;  \
-	VPADDQ  m3, Y0, Y0;   \
-	VPADDQ  Y1, Y0, Y0;   \
-	VPXOR   Y0, Y3, Y3;   \
-	VPSHUFB c48, Y3, Y3;  \
-	VPADDQ  Y3, Y2, Y2;   \
-	VPXOR   Y2, Y1, Y1;   \
-	VPADDQ  Y1, Y1, t;    \
-	VPSRLQ  $63, Y1, Y1;  \
-	VPXOR   t, Y1, Y1;    \
-	VPERMQ_0x39_Y3_Y3;    \
-	VPERMQ_0x4E_Y2_Y2;    \
-	VPERMQ_0x93_Y1_Y1
-
-#define VMOVQ_SI_X11_0 BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x1E
-#define VMOVQ_SI_X12_0 BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x26
-#define VMOVQ_SI_X13_0 BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x2E
-#define VMOVQ_SI_X14_0 BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x36
-#define VMOVQ_SI_X15_0 BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x3E
-
-#define VMOVQ_SI_X11(n) BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x5E; BYTE $n
-#define VMOVQ_SI_X12(n) BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x66; BYTE $n
-#define VMOVQ_SI_X13(n) BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x6E; BYTE $n
-#define VMOVQ_SI_X14(n) BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x76; BYTE $n
-#define VMOVQ_SI_X15(n) BYTE $0xC5; BYTE $0x7A; BYTE $0x7E; BYTE $0x7E; BYTE $n
-
-#define VPINSRQ_1_SI_X11_0 BYTE $0xC4; BYTE $0x63; BYTE $0xA1; BYTE $0x22; BYTE $0x1E; BYTE $0x01
-#define VPINSRQ_1_SI_X12_0 BYTE $0xC4; BYTE $0x63; BYTE $0x99; BYTE $0x22; BYTE $0x26; BYTE $0x01
-#define VPINSRQ_1_SI_X13_0 BYTE $0xC4; BYTE $0x63; BYTE $0x91; BYTE $0x22; BYTE $0x2E; BYTE $0x01
-#define VPINSRQ_1_SI_X14_0 BYTE $0xC4; BYTE $0x63; BYTE $0x89; BYTE $0x22; BYTE $0x36; BYTE $0x01
-#define VPINSRQ_1_SI_X15_0 BYTE $0xC4; BYTE $0x63; BYTE $0x81; BYTE $0x22; BYTE $0x3E; BYTE $0x01
-
-#define VPINSRQ_1_SI_X11(n) BYTE $0xC4; BYTE $0x63; BYTE $0xA1; BYTE $0x22; BYTE $0x5E; BYTE $n; BYTE $0x01
-#define VPINSRQ_1_SI_X12(n) BYTE $0xC4; BYTE $0x63; BYTE $0x99; BYTE $0x22; BYTE $0x66; BYTE $n; BYTE $0x01
-#define VPINSRQ_1_SI_X13(n) BYTE $0xC4; BYTE $0x63; BYTE $0x91; BYTE $0x22; BYTE $0x6E; BYTE $n; BYTE $0x01
-#define VPINSRQ_1_SI_X14(n) BYTE $0xC4; BYTE $0x63; BYTE $0x89; BYTE $0x22; BYTE $0x76; BYTE $n; BYTE $0x01
-#define VPINSRQ_1_SI_X15(n) BYTE $0xC4; BYTE $0x63; BYTE $0x81; BYTE $0x22; BYTE $0x7E; BYTE $n; BYTE $0x01
-
-#define VMOVQ_R8_X15 BYTE $0xC4; BYTE $0x41; BYTE $0xF9; BYTE $0x6E; BYTE $0xF8
-#define VPINSRQ_1_R9_X15 BYTE $0xC4; BYTE $0x43; BYTE $0x81; BYTE $0x22; BYTE $0xF9; BYTE $0x01
-
-// load msg: Y12 = (i0, i1, i2, i3)
-// i0, i1, i2, i3 must not be 0
-#define LOAD_MSG_AVX2_Y12(i0, i1, i2, i3) \
-	VMOVQ_SI_X12(i0*8);           \
-	VMOVQ_SI_X11(i2*8);           \
-	VPINSRQ_1_SI_X12(i1*8);       \
-	VPINSRQ_1_SI_X11(i3*8);       \
-	VINSERTI128 $1, X11, Y12, Y12
-
-// load msg: Y13 = (i0, i1, i2, i3)
-// i0, i1, i2, i3 must not be 0
-#define LOAD_MSG_AVX2_Y13(i0, i1, i2, i3) \
-	VMOVQ_SI_X13(i0*8);           \
-	VMOVQ_SI_X11(i2*8);           \
-	VPINSRQ_1_SI_X13(i1*8);       \
-	VPINSRQ_1_SI_X11(i3*8);       \
-	VINSERTI128 $1, X11, Y13, Y13
-
-// load msg: Y14 = (i0, i1, i2, i3)
-// i0, i1, i2, i3 must not be 0
-#define LOAD_MSG_AVX2_Y14(i0, i1, i2, i3) \
-	VMOVQ_SI_X14(i0*8);           \
-	VMOVQ_SI_X11(i2*8);           \
-	VPINSRQ_1_SI_X14(i1*8);       \
-	VPINSRQ_1_SI_X11(i3*8);       \
-	VINSERTI128 $1, X11, Y14, Y14
-
-// load msg: Y15 = (i0, i1, i2, i3)
-// i0, i1, i2, i3 must not be 0
-#define LOAD_MSG_AVX2_Y15(i0, i1, i2, i3) \
-	VMOVQ_SI_X15(i0*8);           \
-	VMOVQ_SI_X11(i2*8);           \
-	VPINSRQ_1_SI_X15(i1*8);       \
-	VPINSRQ_1_SI_X11(i3*8);       \
-	VINSERTI128 $1, X11, Y15, Y15
-
-#define LOAD_MSG_AVX2_0_2_4_6_1_3_5_7_8_10_12_14_9_11_13_15() \
-	VMOVQ_SI_X12_0;                   \
-	VMOVQ_SI_X11(4*8);                \
-	VPINSRQ_1_SI_X12(2*8);            \
-	VPINSRQ_1_SI_X11(6*8);            \
-	VINSERTI128 $1, X11, Y12, Y12;    \
-	LOAD_MSG_AVX2_Y13(1, 3, 5, 7);    \
-	LOAD_MSG_AVX2_Y14(8, 10, 12, 14); \
-	LOAD_MSG_AVX2_Y15(9, 11, 13, 15)
-
-#define LOAD_MSG_AVX2_14_4_9_13_10_8_15_6_1_0_11_5_12_2_7_3() \
-	LOAD_MSG_AVX2_Y12(14, 4, 9, 13); \
-	LOAD_MSG_AVX2_Y13(10, 8, 15, 6); \
-	VMOVQ_SI_X11(11*8);              \
-	VPSHUFD     $0x4E, 0*8(SI), X14; \
-	VPINSRQ_1_SI_X11(5*8);           \
-	VINSERTI128 $1, X11, Y14, Y14;   \
-	LOAD_MSG_AVX2_Y15(12, 2, 7, 3)
-
-#define LOAD_MSG_AVX2_11_12_5_15_8_0_2_13_10_3_7_9_14_6_1_4() \
-	VMOVQ_SI_X11(5*8);              \
-	VMOVDQU     11*8(SI), X12;      \
-	VPINSRQ_1_SI_X11(15*8);         \
-	VINSERTI128 $1, X11, Y12, Y12;  \
-	VMOVQ_SI_X13(8*8);              \
-	VMOVQ_SI_X11(2*8);              \
-	VPINSRQ_1_SI_X13_0;             \
-	VPINSRQ_1_SI_X11(13*8);         \
-	VINSERTI128 $1, X11, Y13, Y13;  \
-	LOAD_MSG_AVX2_Y14(10, 3, 7, 9); \
-	LOAD_MSG_AVX2_Y15(14, 6, 1, 4)
-
-#define LOAD_MSG_AVX2_7_3_13_11_9_1_12_14_2_5_4_15_6_10_0_8() \
-	LOAD_MSG_AVX2_Y12(7, 3, 13, 11); \
-	LOAD_MSG_AVX2_Y13(9, 1, 12, 14); \
-	LOAD_MSG_AVX2_Y14(2, 5, 4, 15);  \
-	VMOVQ_SI_X15(6*8);               \
-	VMOVQ_SI_X11_0;                  \
-	VPINSRQ_1_SI_X15(10*8);          \
-	VPINSRQ_1_SI_X11(8*8);           \
-	VINSERTI128 $1, X11, Y15, Y15
-
-#define LOAD_MSG_AVX2_9_5_2_10_0_7_4_15_14_11_6_3_1_12_8_13() \
-	LOAD_MSG_AVX2_Y12(9, 5, 2, 10);  \
-	VMOVQ_SI_X13_0;                  \
-	VMOVQ_SI_X11(4*8);               \
-	VPINSRQ_1_SI_X13(7*8);           \
-	VPINSRQ_1_SI_X11(15*8);          \
-	VINSERTI128 $1, X11, Y13, Y13;   \
-	LOAD_MSG_AVX2_Y14(14, 11, 6, 3); \
-	LOAD_MSG_AVX2_Y15(1, 12, 8, 13)
-
-#define LOAD_MSG_AVX2_2_6_0_8_12_10_11_3_4_7_15_1_13_5_14_9() \
-	VMOVQ_SI_X12(2*8);                \
-	VMOVQ_SI_X11_0;                   \
-	VPINSRQ_1_SI_X12(6*8);            \
-	VPINSRQ_1_SI_X11(8*8);            \
-	VINSERTI128 $1, X11, Y12, Y12;    \
-	LOAD_MSG_AVX2_Y13(12, 10, 11, 3); \
-	LOAD_MSG_AVX2_Y14(4, 7, 15, 1);   \
-	LOAD_MSG_AVX2_Y15(13, 5, 14, 9)
-
-#define LOAD_MSG_AVX2_12_1_14_4_5_15_13_10_0_6_9_8_7_3_2_11() \
-	LOAD_MSG_AVX2_Y12(12, 1, 14, 4);  \
-	LOAD_MSG_AVX2_Y13(5, 15, 13, 10); \
-	VMOVQ_SI_X14_0;                   \
-	VPSHUFD     $0x4E, 8*8(SI), X11;  \
-	VPINSRQ_1_SI_X14(6*8);            \
-	VINSERTI128 $1, X11, Y14, Y14;    \
-	LOAD_MSG_AVX2_Y15(7, 3, 2, 11)
-
-#define LOAD_MSG_AVX2_13_7_12_3_11_14_1_9_5_15_8_2_0_4_6_10() \
-	LOAD_MSG_AVX2_Y12(13, 7, 12, 3); \
-	LOAD_MSG_AVX2_Y13(11, 14, 1, 9); \
-	LOAD_MSG_AVX2_Y14(5, 15, 8, 2);  \
-	VMOVQ_SI_X15_0;                  \
-	VMOVQ_SI_X11(6*8);               \
-	VPINSRQ_1_SI_X15(4*8);           \
-	VPINSRQ_1_SI_X11(10*8);          \
-	VINSERTI128 $1, X11, Y15, Y15
-
-#define LOAD_MSG_AVX2_6_14_11_0_15_9_3_8_12_13_1_10_2_7_4_5() \
-	VMOVQ_SI_X12(6*8);              \
-	VMOVQ_SI_X11(11*8);             \
-	VPINSRQ_1_SI_X12(14*8);         \
-	VPINSRQ_1_SI_X11_0;             \
-	VINSERTI128 $1, X11, Y12, Y12;  \
-	LOAD_MSG_AVX2_Y13(15, 9, 3, 8); \
-	VMOVQ_SI_X11(1*8);              \
-	VMOVDQU     12*8(SI), X14;      \
-	VPINSRQ_1_SI_X11(10*8);         \
-	VINSERTI128 $1, X11, Y14, Y14;  \
-	VMOVQ_SI_X15(2*8);              \
-	VMOVDQU     4*8(SI), X11;       \
-	VPINSRQ_1_SI_X15(7*8);          \
-	VINSERTI128 $1, X11, Y15, Y15
-
-#define LOAD_MSG_AVX2_10_8_7_1_2_4_6_5_15_9_3_13_11_14_12_0() \
-	LOAD_MSG_AVX2_Y12(10, 8, 7, 1);  \
-	VMOVQ_SI_X13(2*8);               \
-	VPSHUFD     $0x4E, 5*8(SI), X11; \
-	VPINSRQ_1_SI_X13(4*8);           \
-	VINSERTI128 $1, X11, Y13, Y13;   \
-	LOAD_MSG_AVX2_Y14(15, 9, 3, 13); \
-	VMOVQ_SI_X15(11*8);              \
-	VMOVQ_SI_X11(12*8);              \
-	VPINSRQ_1_SI_X15(14*8);          \
-	VPINSRQ_1_SI_X11_0;              \
-	VINSERTI128 $1, X11, Y15, Y15
-
-// func hashBlocksAVX2(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-TEXT ·hashBlocksAVX2(SB), 4, $320-48 // frame size = 288 + 32 byte alignment
-	MOVQ h+0(FP), AX
-	MOVQ c+8(FP), BX
-	MOVQ flag+16(FP), CX
-	MOVQ blocks_base+24(FP), SI
-	MOVQ blocks_len+32(FP), DI
-
-	MOVQ SP, DX
-	MOVQ SP, R9
-	ADDQ $31, R9
-	ANDQ $~31, R9
-	MOVQ R9, SP
-
-	MOVQ CX, 16(SP)
-	XORQ CX, CX
-	MOVQ CX, 24(SP)
-
-	VMOVDQU ·AVX2_c40<>(SB), Y4
-	VMOVDQU ·AVX2_c48<>(SB), Y5
-
-	VMOVDQU 0(AX), Y8
-	VMOVDQU 32(AX), Y9
-	VMOVDQU ·AVX2_iv0<>(SB), Y6
-	VMOVDQU ·AVX2_iv1<>(SB), Y7
-
-	MOVQ 0(BX), R8
-	MOVQ 8(BX), R9
-	MOVQ R9, 8(SP)
-
-loop:
-	ADDQ $128, R8
-	MOVQ R8, 0(SP)
-	CMPQ R8, $128
-	JGE  noinc
-	INCQ R9
-	MOVQ R9, 8(SP)
-
-noinc:
-	VMOVDQA Y8, Y0
-	VMOVDQA Y9, Y1
-	VMOVDQA Y6, Y2
-	VPXOR   0(SP), Y7, Y3
-
-	LOAD_MSG_AVX2_0_2_4_6_1_3_5_7_8_10_12_14_9_11_13_15()
-	VMOVDQA Y12, 32(SP)
-	VMOVDQA Y13, 64(SP)
-	VMOVDQA Y14, 96(SP)
-	VMOVDQA Y15, 128(SP)
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_14_4_9_13_10_8_15_6_1_0_11_5_12_2_7_3()
-	VMOVDQA Y12, 160(SP)
-	VMOVDQA Y13, 192(SP)
-	VMOVDQA Y14, 224(SP)
-	VMOVDQA Y15, 256(SP)
-
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_11_12_5_15_8_0_2_13_10_3_7_9_14_6_1_4()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_7_3_13_11_9_1_12_14_2_5_4_15_6_10_0_8()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_9_5_2_10_0_7_4_15_14_11_6_3_1_12_8_13()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_2_6_0_8_12_10_11_3_4_7_15_1_13_5_14_9()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_12_1_14_4_5_15_13_10_0_6_9_8_7_3_2_11()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_13_7_12_3_11_14_1_9_5_15_8_2_0_4_6_10()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_6_14_11_0_15_9_3_8_12_13_1_10_2_7_4_5()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-	LOAD_MSG_AVX2_10_8_7_1_2_4_6_5_15_9_3_13_11_14_12_0()
-	ROUND_AVX2(Y12, Y13, Y14, Y15, Y10, Y4, Y5)
-
-	ROUND_AVX2(32(SP), 64(SP), 96(SP), 128(SP), Y10, Y4, Y5)
-	ROUND_AVX2(160(SP), 192(SP), 224(SP), 256(SP), Y10, Y4, Y5)
-
-	VPXOR Y0, Y8, Y8
-	VPXOR Y1, Y9, Y9
-	VPXOR Y2, Y8, Y8
-	VPXOR Y3, Y9, Y9
-
-	LEAQ 128(SI), SI
-	SUBQ $128, DI
-	JNE  loop
-
-	MOVQ R8, 0(BX)
-	MOVQ R9, 8(BX)
-
-	VMOVDQU Y8, 0(AX)
-	VMOVDQU Y9, 32(AX)
-	VZEROUPPER
-
-	MOVQ DX, SP
-	RET
-
-#define VPUNPCKLQDQ_X2_X2_X15 BYTE $0xC5; BYTE $0x69; BYTE $0x6C; BYTE $0xFA
-#define VPUNPCKLQDQ_X3_X3_X15 BYTE $0xC5; BYTE $0x61; BYTE $0x6C; BYTE $0xFB
-#define VPUNPCKLQDQ_X7_X7_X15 BYTE $0xC5; BYTE $0x41; BYTE $0x6C; BYTE $0xFF
-#define VPUNPCKLQDQ_X13_X13_X15 BYTE $0xC4; BYTE $0x41; BYTE $0x11; BYTE $0x6C; BYTE $0xFD
-#define VPUNPCKLQDQ_X14_X14_X15 BYTE $0xC4; BYTE $0x41; BYTE $0x09; BYTE $0x6C; BYTE $0xFE
-
-#define VPUNPCKHQDQ_X15_X2_X2 BYTE $0xC4; BYTE $0xC1; BYTE $0x69; BYTE $0x6D; BYTE $0xD7
-#define VPUNPCKHQDQ_X15_X3_X3 BYTE $0xC4; BYTE $0xC1; BYTE $0x61; BYTE $0x6D; BYTE $0xDF
-#define VPUNPCKHQDQ_X15_X6_X6 BYTE $0xC4; BYTE $0xC1; BYTE $0x49; BYTE $0x6D; BYTE $0xF7
-#define VPUNPCKHQDQ_X15_X7_X7 BYTE $0xC4; BYTE $0xC1; BYTE $0x41; BYTE $0x6D; BYTE $0xFF
-#define VPUNPCKHQDQ_X15_X3_X2 BYTE $0xC4; BYTE $0xC1; BYTE $0x61; BYTE $0x6D; BYTE $0xD7
-#define VPUNPCKHQDQ_X15_X7_X6 BYTE $0xC4; BYTE $0xC1; BYTE $0x41; BYTE $0x6D; BYTE $0xF7
-#define VPUNPCKHQDQ_X15_X13_X3 BYTE $0xC4; BYTE $0xC1; BYTE $0x11; BYTE $0x6D; BYTE $0xDF
-#define VPUNPCKHQDQ_X15_X13_X7 BYTE $0xC4; BYTE $0xC1; BYTE $0x11; BYTE $0x6D; BYTE $0xFF
-
-#define SHUFFLE_AVX() \
-	VMOVDQA X6, X13;         \
-	VMOVDQA X2, X14;         \
-	VMOVDQA X4, X6;          \
-	VPUNPCKLQDQ_X13_X13_X15; \
-	VMOVDQA X5, X4;          \
-	VMOVDQA X6, X5;          \
-	VPUNPCKHQDQ_X15_X7_X6;   \
-	VPUNPCKLQDQ_X7_X7_X15;   \
-	VPUNPCKHQDQ_X15_X13_X7;  \
-	VPUNPCKLQDQ_X3_X3_X15;   \
-	VPUNPCKHQDQ_X15_X2_X2;   \
-	VPUNPCKLQDQ_X14_X14_X15; \
-	VPUNPCKHQDQ_X15_X3_X3;   \
-
-#define SHUFFLE_AVX_INV() \
-	VMOVDQA X2, X13;         \
-	VMOVDQA X4, X14;         \
-	VPUNPCKLQDQ_X2_X2_X15;   \
-	VMOVDQA X5, X4;          \
-	VPUNPCKHQDQ_X15_X3_X2;   \
-	VMOVDQA X14, X5;         \
-	VPUNPCKLQDQ_X3_X3_X15;   \
-	VMOVDQA X6, X14;         \
-	VPUNPCKHQDQ_X15_X13_X3;  \
-	VPUNPCKLQDQ_X7_X7_X15;   \
-	VPUNPCKHQDQ_X15_X6_X6;   \
-	VPUNPCKLQDQ_X14_X14_X15; \
-	VPUNPCKHQDQ_X15_X7_X7;   \
-
-#define HALF_ROUND_AVX(v0, v1, v2, v3, v4, v5, v6, v7, m0, m1, m2, m3, t0, c40, c48) \
-	VPADDQ  m0, v0, v0;   \
-	VPADDQ  v2, v0, v0;   \
-	VPADDQ  m1, v1, v1;   \
-	VPADDQ  v3, v1, v1;   \
-	VPXOR   v0, v6, v6;   \
-	VPXOR   v1, v7, v7;   \
-	VPSHUFD $-79, v6, v6; \
-	VPSHUFD $-79, v7, v7; \
-	VPADDQ  v6, v4, v4;   \
-	VPADDQ  v7, v5, v5;   \
-	VPXOR   v4, v2, v2;   \
-	VPXOR   v5, v3, v3;   \
-	VPSHUFB c40, v2, v2;  \
-	VPSHUFB c40, v3, v3;  \
-	VPADDQ  m2, v0, v0;   \
-	VPADDQ  v2, v0, v0;   \
-	VPADDQ  m3, v1, v1;   \
-	VPADDQ  v3, v1, v1;   \
-	VPXOR   v0, v6, v6;   \
-	VPXOR   v1, v7, v7;   \
-	VPSHUFB c48, v6, v6;  \
-	VPSHUFB c48, v7, v7;  \
-	VPADDQ  v6, v4, v4;   \
-	VPADDQ  v7, v5, v5;   \
-	VPXOR   v4, v2, v2;   \
-	VPXOR   v5, v3, v3;   \
-	VPADDQ  v2, v2, t0;   \
-	VPSRLQ  $63, v2, v2;  \
-	VPXOR   t0, v2, v2;   \
-	VPADDQ  v3, v3, t0;   \
-	VPSRLQ  $63, v3, v3;  \
-	VPXOR   t0, v3, v3
-
-// load msg: X12 = (i0, i1), X13 = (i2, i3), X14 = (i4, i5), X15 = (i6, i7)
-// i0, i1, i2, i3, i4, i5, i6, i7 must not be 0
-#define LOAD_MSG_AVX(i0, i1, i2, i3, i4, i5, i6, i7) \
-	VMOVQ_SI_X12(i0*8);     \
-	VMOVQ_SI_X13(i2*8);     \
-	VMOVQ_SI_X14(i4*8);     \
-	VMOVQ_SI_X15(i6*8);     \
-	VPINSRQ_1_SI_X12(i1*8); \
-	VPINSRQ_1_SI_X13(i3*8); \
-	VPINSRQ_1_SI_X14(i5*8); \
-	VPINSRQ_1_SI_X15(i7*8)
-
-// load msg: X12 = (0, 2), X13 = (4, 6), X14 = (1, 3), X15 = (5, 7)
-#define LOAD_MSG_AVX_0_2_4_6_1_3_5_7() \
-	VMOVQ_SI_X12_0;        \
-	VMOVQ_SI_X13(4*8);     \
-	VMOVQ_SI_X14(1*8);     \
-	VMOVQ_SI_X15(5*8);     \
-	VPINSRQ_1_SI_X12(2*8); \
-	VPINSRQ_1_SI_X13(6*8); \
-	VPINSRQ_1_SI_X14(3*8); \
-	VPINSRQ_1_SI_X15(7*8)
-
-// load msg: X12 = (1, 0), X13 = (11, 5), X14 = (12, 2), X15 = (7, 3)
-#define LOAD_MSG_AVX_1_0_11_5_12_2_7_3() \
-	VPSHUFD $0x4E, 0*8(SI), X12; \
-	VMOVQ_SI_X13(11*8);          \
-	VMOVQ_SI_X14(12*8);          \
-	VMOVQ_SI_X15(7*8);           \
-	VPINSRQ_1_SI_X13(5*8);       \
-	VPINSRQ_1_SI_X14(2*8);       \
-	VPINSRQ_1_SI_X15(3*8)
-
-// load msg: X12 = (11, 12), X13 = (5, 15), X14 = (8, 0), X15 = (2, 13)
-#define LOAD_MSG_AVX_11_12_5_15_8_0_2_13() \
-	VMOVDQU 11*8(SI), X12;  \
-	VMOVQ_SI_X13(5*8);      \
-	VMOVQ_SI_X14(8*8);      \
-	VMOVQ_SI_X15(2*8);      \
-	VPINSRQ_1_SI_X13(15*8); \
-	VPINSRQ_1_SI_X14_0;     \
-	VPINSRQ_1_SI_X15(13*8)
-
-// load msg: X12 = (2, 5), X13 = (4, 15), X14 = (6, 10), X15 = (0, 8)
-#define LOAD_MSG_AVX_2_5_4_15_6_10_0_8() \
-	VMOVQ_SI_X12(2*8);      \
-	VMOVQ_SI_X13(4*8);      \
-	VMOVQ_SI_X14(6*8);      \
-	VMOVQ_SI_X15_0;         \
-	VPINSRQ_1_SI_X12(5*8);  \
-	VPINSRQ_1_SI_X13(15*8); \
-	VPINSRQ_1_SI_X14(10*8); \
-	VPINSRQ_1_SI_X15(8*8)
-
-// load msg: X12 = (9, 5), X13 = (2, 10), X14 = (0, 7), X15 = (4, 15)
-#define LOAD_MSG_AVX_9_5_2_10_0_7_4_15() \
-	VMOVQ_SI_X12(9*8);      \
-	VMOVQ_SI_X13(2*8);      \
-	VMOVQ_SI_X14_0;         \
-	VMOVQ_SI_X15(4*8);      \
-	VPINSRQ_1_SI_X12(5*8);  \
-	VPINSRQ_1_SI_X13(10*8); \
-	VPINSRQ_1_SI_X14(7*8);  \
-	VPINSRQ_1_SI_X15(15*8)
-
-// load msg: X12 = (2, 6), X13 = (0, 8), X14 = (12, 10), X15 = (11, 3)
-#define LOAD_MSG_AVX_2_6_0_8_12_10_11_3() \
-	VMOVQ_SI_X12(2*8);      \
-	VMOVQ_SI_X13_0;         \
-	VMOVQ_SI_X14(12*8);     \
-	VMOVQ_SI_X15(11*8);     \
-	VPINSRQ_1_SI_X12(6*8);  \
-	VPINSRQ_1_SI_X13(8*8);  \
-	VPINSRQ_1_SI_X14(10*8); \
-	VPINSRQ_1_SI_X15(3*8)
-
-// load msg: X12 = (0, 6), X13 = (9, 8), X14 = (7, 3), X15 = (2, 11)
-#define LOAD_MSG_AVX_0_6_9_8_7_3_2_11() \
-	MOVQ    0*8(SI), X12;        \
-	VPSHUFD $0x4E, 8*8(SI), X13; \
-	MOVQ    7*8(SI), X14;        \
-	MOVQ    2*8(SI), X15;        \
-	VPINSRQ_1_SI_X12(6*8);       \
-	VPINSRQ_1_SI_X14(3*8);       \
-	VPINSRQ_1_SI_X15(11*8)
-
-// load msg: X12 = (6, 14), X13 = (11, 0), X14 = (15, 9), X15 = (3, 8)
-#define LOAD_MSG_AVX_6_14_11_0_15_9_3_8() \
-	MOVQ 6*8(SI), X12;      \
-	MOVQ 11*8(SI), X13;     \
-	MOVQ 15*8(SI), X14;     \
-	MOVQ 3*8(SI), X15;      \
-	VPINSRQ_1_SI_X12(14*8); \
-	VPINSRQ_1_SI_X13_0;     \
-	VPINSRQ_1_SI_X14(9*8);  \
-	VPINSRQ_1_SI_X15(8*8)
-
-// load msg: X12 = (5, 15), X13 = (8, 2), X14 = (0, 4), X15 = (6, 10)
-#define LOAD_MSG_AVX_5_15_8_2_0_4_6_10() \
-	MOVQ 5*8(SI), X12;      \
-	MOVQ 8*8(SI), X13;      \
-	MOVQ 0*8(SI), X14;      \
-	MOVQ 6*8(SI), X15;      \
-	VPINSRQ_1_SI_X12(15*8); \
-	VPINSRQ_1_SI_X13(2*8);  \
-	VPINSRQ_1_SI_X14(4*8);  \
-	VPINSRQ_1_SI_X15(10*8)
-
-// load msg: X12 = (12, 13), X13 = (1, 10), X14 = (2, 7), X15 = (4, 5)
-#define LOAD_MSG_AVX_12_13_1_10_2_7_4_5() \
-	VMOVDQU 12*8(SI), X12;  \
-	MOVQ    1*8(SI), X13;   \
-	MOVQ    2*8(SI), X14;   \
-	VPINSRQ_1_SI_X13(10*8); \
-	VPINSRQ_1_SI_X14(7*8);  \
-	VMOVDQU 4*8(SI), X15
-
-// load msg: X12 = (15, 9), X13 = (3, 13), X14 = (11, 14), X15 = (12, 0)
-#define LOAD_MSG_AVX_15_9_3_13_11_14_12_0() \
-	MOVQ 15*8(SI), X12;     \
-	MOVQ 3*8(SI), X13;      \
-	MOVQ 11*8(SI), X14;     \
-	MOVQ 12*8(SI), X15;     \
-	VPINSRQ_1_SI_X12(9*8);  \
-	VPINSRQ_1_SI_X13(13*8); \
-	VPINSRQ_1_SI_X14(14*8); \
-	VPINSRQ_1_SI_X15_0
-
-// func hashBlocksAVX(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-TEXT ·hashBlocksAVX(SB), 4, $288-48 // frame size = 272 + 16 byte alignment
-	MOVQ h+0(FP), AX
-	MOVQ c+8(FP), BX
-	MOVQ flag+16(FP), CX
-	MOVQ blocks_base+24(FP), SI
-	MOVQ blocks_len+32(FP), DI
-
-	MOVQ SP, BP
-	MOVQ SP, R9
-	ADDQ $15, R9
-	ANDQ $~15, R9
-	MOVQ R9, SP
-
-	VMOVDQU ·AVX_c40<>(SB), X0
-	VMOVDQU ·AVX_c48<>(SB), X1
-	VMOVDQA X0, X8
-	VMOVDQA X1, X9
-
-	VMOVDQU ·AVX_iv3<>(SB), X0
-	VMOVDQA X0, 0(SP)
-	XORQ    CX, 0(SP)          // 0(SP) = ·AVX_iv3 ^ (CX || 0)
-
-	VMOVDQU 0(AX), X10
-	VMOVDQU 16(AX), X11
-	VMOVDQU 32(AX), X2
-	VMOVDQU 48(AX), X3
-
-	MOVQ 0(BX), R8
-	MOVQ 8(BX), R9
-
-loop:
-	ADDQ $128, R8
-	CMPQ R8, $128
-	JGE  noinc
-	INCQ R9
-
-noinc:
-	VMOVQ_R8_X15
-	VPINSRQ_1_R9_X15
-
-	VMOVDQA X10, X0
-	VMOVDQA X11, X1
-	VMOVDQU ·AVX_iv0<>(SB), X4
-	VMOVDQU ·AVX_iv1<>(SB), X5
-	VMOVDQU ·AVX_iv2<>(SB), X6
-
-	VPXOR   X15, X6, X6
-	VMOVDQA 0(SP), X7
-
-	LOAD_MSG_AVX_0_2_4_6_1_3_5_7()
-	VMOVDQA X12, 16(SP)
-	VMOVDQA X13, 32(SP)
-	VMOVDQA X14, 48(SP)
-	VMOVDQA X15, 64(SP)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX(8, 10, 12, 14, 9, 11, 13, 15)
-	VMOVDQA X12, 80(SP)
-	VMOVDQA X13, 96(SP)
-	VMOVDQA X14, 112(SP)
-	VMOVDQA X15, 128(SP)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX(14, 4, 9, 13, 10, 8, 15, 6)
-	VMOVDQA X12, 144(SP)
-	VMOVDQA X13, 160(SP)
-	VMOVDQA X14, 176(SP)
-	VMOVDQA X15, 192(SP)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_1_0_11_5_12_2_7_3()
-	VMOVDQA X12, 208(SP)
-	VMOVDQA X13, 224(SP)
-	VMOVDQA X14, 240(SP)
-	VMOVDQA X15, 256(SP)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX_11_12_5_15_8_0_2_13()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX(10, 3, 7, 9, 14, 6, 1, 4)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX(7, 3, 13, 11, 9, 1, 12, 14)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_2_5_4_15_6_10_0_8()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX_9_5_2_10_0_7_4_15()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX(14, 11, 6, 3, 1, 12, 8, 13)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX_2_6_0_8_12_10_11_3()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX(4, 7, 15, 1, 13, 5, 14, 9)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX(12, 1, 14, 4, 5, 15, 13, 10)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_0_6_9_8_7_3_2_11()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX(13, 7, 12, 3, 11, 14, 1, 9)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_5_15_8_2_0_4_6_10()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX_6_14_11_0_15_9_3_8()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_12_13_1_10_2_7_4_5()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	LOAD_MSG_AVX(10, 8, 7, 1, 2, 4, 6, 5)
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX()
-	LOAD_MSG_AVX_15_9_3_13_11_14_12_0()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, X12, X13, X14, X15, X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X15, X8, X9)
-	SHUFFLE_AVX()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 80(SP), 96(SP), 112(SP), 128(SP), X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 144(SP), 160(SP), 176(SP), 192(SP), X15, X8, X9)
-	SHUFFLE_AVX()
-	HALF_ROUND_AVX(X0, X1, X2, X3, X4, X5, X6, X7, 208(SP), 224(SP), 240(SP), 256(SP), X15, X8, X9)
-	SHUFFLE_AVX_INV()
-
-	VMOVDQU 32(AX), X14
-	VMOVDQU 48(AX), X15
-	VPXOR   X0, X10, X10
-	VPXOR   X1, X11, X11
-	VPXOR   X2, X14, X14
-	VPXOR   X3, X15, X15
-	VPXOR   X4, X10, X10
-	VPXOR   X5, X11, X11
-	VPXOR   X6, X14, X2
-	VPXOR   X7, X15, X3
-	VMOVDQU X2, 32(AX)
-	VMOVDQU X3, 48(AX)
-
-	LEAQ 128(SI), SI
-	SUBQ $128, DI
-	JNE  loop
-
-	VMOVDQU X10, 0(AX)
-	VMOVDQU X11, 16(AX)
-
-	MOVQ R8, 0(BX)
-	MOVQ R9, 8(BX)
-	VZEROUPPER
-
-	MOVQ BP, SP
-	RET
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.go b/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.go
deleted file mode 100644
index 30e2fcd..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.go
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !go1.7,amd64,!gccgo,!appengine
-
-package blake2b
-
-import "golang.org/x/sys/cpu"
-
-func init() {
-	useSSE4 = cpu.X86.HasSSE41
-}
-
-//go:noescape
-func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-
-func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
-	if useSSE4 {
-		hashBlocksSSE4(h, c, flag, blocks)
-	} else {
-		hashBlocksGeneric(h, c, flag, blocks)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.s b/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.s
deleted file mode 100644
index 578e947..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b_amd64.s
+++ /dev/null
@@ -1,281 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-#include "textflag.h"
-
-DATA ·iv0<>+0x00(SB)/8, $0x6a09e667f3bcc908
-DATA ·iv0<>+0x08(SB)/8, $0xbb67ae8584caa73b
-GLOBL ·iv0<>(SB), (NOPTR+RODATA), $16
-
-DATA ·iv1<>+0x00(SB)/8, $0x3c6ef372fe94f82b
-DATA ·iv1<>+0x08(SB)/8, $0xa54ff53a5f1d36f1
-GLOBL ·iv1<>(SB), (NOPTR+RODATA), $16
-
-DATA ·iv2<>+0x00(SB)/8, $0x510e527fade682d1
-DATA ·iv2<>+0x08(SB)/8, $0x9b05688c2b3e6c1f
-GLOBL ·iv2<>(SB), (NOPTR+RODATA), $16
-
-DATA ·iv3<>+0x00(SB)/8, $0x1f83d9abfb41bd6b
-DATA ·iv3<>+0x08(SB)/8, $0x5be0cd19137e2179
-GLOBL ·iv3<>(SB), (NOPTR+RODATA), $16
-
-DATA ·c40<>+0x00(SB)/8, $0x0201000706050403
-DATA ·c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
-GLOBL ·c40<>(SB), (NOPTR+RODATA), $16
-
-DATA ·c48<>+0x00(SB)/8, $0x0100070605040302
-DATA ·c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
-GLOBL ·c48<>(SB), (NOPTR+RODATA), $16
-
-#define SHUFFLE(v2, v3, v4, v5, v6, v7, t1, t2) \
-	MOVO       v4, t1; \
-	MOVO       v5, v4; \
-	MOVO       t1, v5; \
-	MOVO       v6, t1; \
-	PUNPCKLQDQ v6, t2; \
-	PUNPCKHQDQ v7, v6; \
-	PUNPCKHQDQ t2, v6; \
-	PUNPCKLQDQ v7, t2; \
-	MOVO       t1, v7; \
-	MOVO       v2, t1; \
-	PUNPCKHQDQ t2, v7; \
-	PUNPCKLQDQ v3, t2; \
-	PUNPCKHQDQ t2, v2; \
-	PUNPCKLQDQ t1, t2; \
-	PUNPCKHQDQ t2, v3
-
-#define SHUFFLE_INV(v2, v3, v4, v5, v6, v7, t1, t2) \
-	MOVO       v4, t1; \
-	MOVO       v5, v4; \
-	MOVO       t1, v5; \
-	MOVO       v2, t1; \
-	PUNPCKLQDQ v2, t2; \
-	PUNPCKHQDQ v3, v2; \
-	PUNPCKHQDQ t2, v2; \
-	PUNPCKLQDQ v3, t2; \
-	MOVO       t1, v3; \
-	MOVO       v6, t1; \
-	PUNPCKHQDQ t2, v3; \
-	PUNPCKLQDQ v7, t2; \
-	PUNPCKHQDQ t2, v6; \
-	PUNPCKLQDQ t1, t2; \
-	PUNPCKHQDQ t2, v7
-
-#define HALF_ROUND(v0, v1, v2, v3, v4, v5, v6, v7, m0, m1, m2, m3, t0, c40, c48) \
-	PADDQ  m0, v0;        \
-	PADDQ  m1, v1;        \
-	PADDQ  v2, v0;        \
-	PADDQ  v3, v1;        \
-	PXOR   v0, v6;        \
-	PXOR   v1, v7;        \
-	PSHUFD $0xB1, v6, v6; \
-	PSHUFD $0xB1, v7, v7; \
-	PADDQ  v6, v4;        \
-	PADDQ  v7, v5;        \
-	PXOR   v4, v2;        \
-	PXOR   v5, v3;        \
-	PSHUFB c40, v2;       \
-	PSHUFB c40, v3;       \
-	PADDQ  m2, v0;        \
-	PADDQ  m3, v1;        \
-	PADDQ  v2, v0;        \
-	PADDQ  v3, v1;        \
-	PXOR   v0, v6;        \
-	PXOR   v1, v7;        \
-	PSHUFB c48, v6;       \
-	PSHUFB c48, v7;       \
-	PADDQ  v6, v4;        \
-	PADDQ  v7, v5;        \
-	PXOR   v4, v2;        \
-	PXOR   v5, v3;        \
-	MOVOU  v2, t0;        \
-	PADDQ  v2, t0;        \
-	PSRLQ  $63, v2;       \
-	PXOR   t0, v2;        \
-	MOVOU  v3, t0;        \
-	PADDQ  v3, t0;        \
-	PSRLQ  $63, v3;       \
-	PXOR   t0, v3
-
-#define LOAD_MSG(m0, m1, m2, m3, src, i0, i1, i2, i3, i4, i5, i6, i7) \
-	MOVQ   i0*8(src), m0;     \
-	PINSRQ $1, i1*8(src), m0; \
-	MOVQ   i2*8(src), m1;     \
-	PINSRQ $1, i3*8(src), m1; \
-	MOVQ   i4*8(src), m2;     \
-	PINSRQ $1, i5*8(src), m2; \
-	MOVQ   i6*8(src), m3;     \
-	PINSRQ $1, i7*8(src), m3
-
-// func hashBlocksSSE4(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte)
-TEXT ·hashBlocksSSE4(SB), 4, $288-48 // frame size = 272 + 16 byte alignment
-	MOVQ h+0(FP), AX
-	MOVQ c+8(FP), BX
-	MOVQ flag+16(FP), CX
-	MOVQ blocks_base+24(FP), SI
-	MOVQ blocks_len+32(FP), DI
-
-	MOVQ SP, BP
-	MOVQ SP, R9
-	ADDQ $15, R9
-	ANDQ $~15, R9
-	MOVQ R9, SP
-
-	MOVOU ·iv3<>(SB), X0
-	MOVO  X0, 0(SP)
-	XORQ  CX, 0(SP)     // 0(SP) = ·iv3 ^ (CX || 0)
-
-	MOVOU ·c40<>(SB), X13
-	MOVOU ·c48<>(SB), X14
-
-	MOVOU 0(AX), X12
-	MOVOU 16(AX), X15
-
-	MOVQ 0(BX), R8
-	MOVQ 8(BX), R9
-
-loop:
-	ADDQ $128, R8
-	CMPQ R8, $128
-	JGE  noinc
-	INCQ R9
-
-noinc:
-	MOVQ R8, X8
-	PINSRQ $1, R9, X8
-
-	MOVO X12, X0
-	MOVO X15, X1
-	MOVOU 32(AX), X2
-	MOVOU 48(AX), X3
-	MOVOU ·iv0<>(SB), X4
-	MOVOU ·iv1<>(SB), X5
-	MOVOU ·iv2<>(SB), X6
-
-	PXOR X8, X6
-	MOVO 0(SP), X7
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 0, 2, 4, 6, 1, 3, 5, 7)
-	MOVO X8, 16(SP)
-	MOVO X9, 32(SP)
-	MOVO X10, 48(SP)
-	MOVO X11, 64(SP)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 8, 10, 12, 14, 9, 11, 13, 15)
-	MOVO X8, 80(SP)
-	MOVO X9, 96(SP)
-	MOVO X10, 112(SP)
-	MOVO X11, 128(SP)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 14, 4, 9, 13, 10, 8, 15, 6)
-	MOVO X8, 144(SP)
-	MOVO X9, 160(SP)
-	MOVO X10, 176(SP)
-	MOVO X11, 192(SP)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 1, 0, 11, 5, 12, 2, 7, 3)
-	MOVO X8, 208(SP)
-	MOVO X9, 224(SP)
-	MOVO X10, 240(SP)
-	MOVO X11, 256(SP)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 11, 12, 5, 15, 8, 0, 2, 13)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 10, 3, 7, 9, 14, 6, 1, 4)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 7, 3, 13, 11, 9, 1, 12, 14)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 2, 5, 4, 15, 6, 10, 0, 8)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 9, 5, 2, 10, 0, 7, 4, 15)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 14, 11, 6, 3, 1, 12, 8, 13)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 2, 6, 0, 8, 12, 10, 11, 3)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 4, 7, 15, 1, 13, 5, 14, 9)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 12, 1, 14, 4, 5, 15, 13, 10)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 0, 6, 9, 8, 7, 3, 2, 11)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 13, 7, 12, 3, 11, 14, 1, 9)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 5, 15, 8, 2, 0, 4, 6, 10)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 6, 14, 11, 0, 15, 9, 3, 8)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 12, 13, 1, 10, 2, 7, 4, 5)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	LOAD_MSG(X8, X9, X10, X11, SI, 10, 8, 7, 1, 2, 4, 6, 5)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	LOAD_MSG(X8, X9, X10, X11, SI, 15, 9, 3, 13, 11, 14, 12, 0)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, X8, X9, X10, X11, X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 80(SP), 96(SP), 112(SP), 128(SP), X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 144(SP), 160(SP), 176(SP), 192(SP), X11, X13, X14)
-	SHUFFLE(X2, X3, X4, X5, X6, X7, X8, X9)
-	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, 208(SP), 224(SP), 240(SP), 256(SP), X11, X13, X14)
-	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, X8, X9)
-
-	MOVOU 32(AX), X10
-	MOVOU 48(AX), X11
-	PXOR  X0, X12
-	PXOR  X1, X15
-	PXOR  X2, X10
-	PXOR  X3, X11
-	PXOR  X4, X12
-	PXOR  X5, X15
-	PXOR  X6, X10
-	PXOR  X7, X11
-	MOVOU X10, 32(AX)
-	MOVOU X11, 48(AX)
-
-	LEAQ 128(SI), SI
-	SUBQ $128, DI
-	JNE  loop
-
-	MOVOU X12, 0(AX)
-	MOVOU X15, 16(AX)
-
-	MOVQ R8, 0(BX)
-	MOVQ R9, 8(BX)
-
-	MOVQ BP, SP
-	RET
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b_generic.go b/vendor/golang.org/x/crypto/blake2b/blake2b_generic.go
deleted file mode 100644
index 4bd2abc..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b_generic.go
+++ /dev/null
@@ -1,179 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2b
-
-import "encoding/binary"
-
-// the precomputed values for BLAKE2b
-// there are 12 16-byte arrays - one for each round
-// the entries are calculated from the sigma constants.
-var precomputed = [12][16]byte{
-	{0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15},
-	{14, 4, 9, 13, 10, 8, 15, 6, 1, 0, 11, 5, 12, 2, 7, 3},
-	{11, 12, 5, 15, 8, 0, 2, 13, 10, 3, 7, 9, 14, 6, 1, 4},
-	{7, 3, 13, 11, 9, 1, 12, 14, 2, 5, 4, 15, 6, 10, 0, 8},
-	{9, 5, 2, 10, 0, 7, 4, 15, 14, 11, 6, 3, 1, 12, 8, 13},
-	{2, 6, 0, 8, 12, 10, 11, 3, 4, 7, 15, 1, 13, 5, 14, 9},
-	{12, 1, 14, 4, 5, 15, 13, 10, 0, 6, 9, 8, 7, 3, 2, 11},
-	{13, 7, 12, 3, 11, 14, 1, 9, 5, 15, 8, 2, 0, 4, 6, 10},
-	{6, 14, 11, 0, 15, 9, 3, 8, 12, 13, 1, 10, 2, 7, 4, 5},
-	{10, 8, 7, 1, 2, 4, 6, 5, 15, 9, 3, 13, 11, 14, 12, 0},
-	{0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15}, // equal to the first
-	{14, 4, 9, 13, 10, 8, 15, 6, 1, 0, 11, 5, 12, 2, 7, 3}, // equal to the second
-}
-
-func hashBlocksGeneric(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
-	var m [16]uint64
-	c0, c1 := c[0], c[1]
-
-	for i := 0; i < len(blocks); {
-		c0 += BlockSize
-		if c0 < BlockSize {
-			c1++
-		}
-
-		v0, v1, v2, v3, v4, v5, v6, v7 := h[0], h[1], h[2], h[3], h[4], h[5], h[6], h[7]
-		v8, v9, v10, v11, v12, v13, v14, v15 := iv[0], iv[1], iv[2], iv[3], iv[4], iv[5], iv[6], iv[7]
-		v12 ^= c0
-		v13 ^= c1
-		v14 ^= flag
-
-		for j := range m {
-			m[j] = binary.LittleEndian.Uint64(blocks[i:])
-			i += 8
-		}
-
-		for j := range precomputed {
-			s := &(precomputed[j])
-
-			v0 += m[s[0]]
-			v0 += v4
-			v12 ^= v0
-			v12 = v12<<(64-32) | v12>>32
-			v8 += v12
-			v4 ^= v8
-			v4 = v4<<(64-24) | v4>>24
-			v1 += m[s[1]]
-			v1 += v5
-			v13 ^= v1
-			v13 = v13<<(64-32) | v13>>32
-			v9 += v13
-			v5 ^= v9
-			v5 = v5<<(64-24) | v5>>24
-			v2 += m[s[2]]
-			v2 += v6
-			v14 ^= v2
-			v14 = v14<<(64-32) | v14>>32
-			v10 += v14
-			v6 ^= v10
-			v6 = v6<<(64-24) | v6>>24
-			v3 += m[s[3]]
-			v3 += v7
-			v15 ^= v3
-			v15 = v15<<(64-32) | v15>>32
-			v11 += v15
-			v7 ^= v11
-			v7 = v7<<(64-24) | v7>>24
-
-			v0 += m[s[4]]
-			v0 += v4
-			v12 ^= v0
-			v12 = v12<<(64-16) | v12>>16
-			v8 += v12
-			v4 ^= v8
-			v4 = v4<<(64-63) | v4>>63
-			v1 += m[s[5]]
-			v1 += v5
-			v13 ^= v1
-			v13 = v13<<(64-16) | v13>>16
-			v9 += v13
-			v5 ^= v9
-			v5 = v5<<(64-63) | v5>>63
-			v2 += m[s[6]]
-			v2 += v6
-			v14 ^= v2
-			v14 = v14<<(64-16) | v14>>16
-			v10 += v14
-			v6 ^= v10
-			v6 = v6<<(64-63) | v6>>63
-			v3 += m[s[7]]
-			v3 += v7
-			v15 ^= v3
-			v15 = v15<<(64-16) | v15>>16
-			v11 += v15
-			v7 ^= v11
-			v7 = v7<<(64-63) | v7>>63
-
-			v0 += m[s[8]]
-			v0 += v5
-			v15 ^= v0
-			v15 = v15<<(64-32) | v15>>32
-			v10 += v15
-			v5 ^= v10
-			v5 = v5<<(64-24) | v5>>24
-			v1 += m[s[9]]
-			v1 += v6
-			v12 ^= v1
-			v12 = v12<<(64-32) | v12>>32
-			v11 += v12
-			v6 ^= v11
-			v6 = v6<<(64-24) | v6>>24
-			v2 += m[s[10]]
-			v2 += v7
-			v13 ^= v2
-			v13 = v13<<(64-32) | v13>>32
-			v8 += v13
-			v7 ^= v8
-			v7 = v7<<(64-24) | v7>>24
-			v3 += m[s[11]]
-			v3 += v4
-			v14 ^= v3
-			v14 = v14<<(64-32) | v14>>32
-			v9 += v14
-			v4 ^= v9
-			v4 = v4<<(64-24) | v4>>24
-
-			v0 += m[s[12]]
-			v0 += v5
-			v15 ^= v0
-			v15 = v15<<(64-16) | v15>>16
-			v10 += v15
-			v5 ^= v10
-			v5 = v5<<(64-63) | v5>>63
-			v1 += m[s[13]]
-			v1 += v6
-			v12 ^= v1
-			v12 = v12<<(64-16) | v12>>16
-			v11 += v12
-			v6 ^= v11
-			v6 = v6<<(64-63) | v6>>63
-			v2 += m[s[14]]
-			v2 += v7
-			v13 ^= v2
-			v13 = v13<<(64-16) | v13>>16
-			v8 += v13
-			v7 ^= v8
-			v7 = v7<<(64-63) | v7>>63
-			v3 += m[s[15]]
-			v3 += v4
-			v14 ^= v3
-			v14 = v14<<(64-16) | v14>>16
-			v9 += v14
-			v4 ^= v9
-			v4 = v4<<(64-63) | v4>>63
-
-		}
-
-		h[0] ^= v0 ^ v8
-		h[1] ^= v1 ^ v9
-		h[2] ^= v2 ^ v10
-		h[3] ^= v3 ^ v11
-		h[4] ^= v4 ^ v12
-		h[5] ^= v5 ^ v13
-		h[6] ^= v6 ^ v14
-		h[7] ^= v7 ^ v15
-	}
-	c[0], c[1] = c0, c1
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b_ref.go b/vendor/golang.org/x/crypto/blake2b/blake2b_ref.go
deleted file mode 100644
index da156a1..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b_ref.go
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64 appengine gccgo
-
-package blake2b
-
-func hashBlocks(h *[8]uint64, c *[2]uint64, flag uint64, blocks []byte) {
-	hashBlocksGeneric(h, c, flag, blocks)
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b_test.go b/vendor/golang.org/x/crypto/blake2b/blake2b_test.go
deleted file mode 100644
index 723327a..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2b_test.go
+++ /dev/null
@@ -1,847 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2b
-
-import (
-	"bytes"
-	"encoding"
-	"encoding/hex"
-	"fmt"
-	"hash"
-	"io"
-	"testing"
-)
-
-func fromHex(s string) []byte {
-	b, err := hex.DecodeString(s)
-	if err != nil {
-		panic(err)
-	}
-	return b
-}
-
-func TestHashes(t *testing.T) {
-	defer func(sse4, avx, avx2 bool) {
-		useSSE4, useAVX, useAVX2 = sse4, avx, avx2
-	}(useSSE4, useAVX, useAVX2)
-
-	if useAVX2 {
-		t.Log("AVX2 version")
-		testHashes(t)
-		useAVX2 = false
-	}
-	if useAVX {
-		t.Log("AVX version")
-		testHashes(t)
-		useAVX = false
-	}
-	if useSSE4 {
-		t.Log("SSE4 version")
-		testHashes(t)
-		useSSE4 = false
-	}
-	t.Log("generic version")
-	testHashes(t)
-}
-
-func TestHashes2X(t *testing.T) {
-	defer func(sse4, avx, avx2 bool) {
-		useSSE4, useAVX, useAVX2 = sse4, avx, avx2
-	}(useSSE4, useAVX, useAVX2)
-
-	if useAVX2 {
-		t.Log("AVX2 version")
-		testHashes2X(t)
-		useAVX2 = false
-	}
-	if useAVX {
-		t.Log("AVX version")
-		testHashes2X(t)
-		useAVX = false
-	}
-	if useSSE4 {
-		t.Log("SSE4 version")
-		testHashes2X(t)
-		useSSE4 = false
-	}
-	t.Log("generic version")
-	testHashes2X(t)
-}
-
-func TestMarshal(t *testing.T) {
-	input := make([]byte, 255)
-	for i := range input {
-		input[i] = byte(i)
-	}
-	for _, size := range []int{Size, Size256, Size384, 12, 25, 63} {
-		for i := 0; i < 256; i++ {
-			h, err := New(size, nil)
-			if err != nil {
-				t.Fatalf("size=%d, len(input)=%d: error from New(%v, nil): %v", size, i, size, err)
-			}
-			h2, err := New(size, nil)
-			if err != nil {
-				t.Fatalf("size=%d, len(input)=%d: error from New(%v, nil): %v", size, i, size, err)
-			}
-
-			h.Write(input[:i/2])
-			halfstate, err := h.(encoding.BinaryMarshaler).MarshalBinary()
-			if err != nil {
-				t.Fatalf("size=%d, len(input)=%d: could not marshal: %v", size, i, err)
-			}
-			err = h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(halfstate)
-			if err != nil {
-				t.Fatalf("size=%d, len(input)=%d: could not unmarshal: %v", size, i, err)
-			}
-
-			h.Write(input[i/2 : i])
-			sum := h.Sum(nil)
-			h2.Write(input[i/2 : i])
-			sum2 := h2.Sum(nil)
-
-			if !bytes.Equal(sum, sum2) {
-				t.Fatalf("size=%d, len(input)=%d: results do not match; sum = %v, sum2 = %v", size, i, sum, sum2)
-			}
-
-			h3, err := New(size, nil)
-			if err != nil {
-				t.Fatalf("size=%d, len(input)=%d: error from New(%v, nil): %v", size, i, size, err)
-			}
-			h3.Write(input[:i])
-			sum3 := h3.Sum(nil)
-			if !bytes.Equal(sum, sum3) {
-				t.Fatalf("size=%d, len(input)=%d: sum = %v, want %v", size, i, sum, sum3)
-			}
-		}
-	}
-}
-
-func testHashes(t *testing.T) {
-	key, _ := hex.DecodeString("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f")
-
-	input := make([]byte, 255)
-	for i := range input {
-		input[i] = byte(i)
-	}
-
-	for i, expectedHex := range hashes {
-		h, err := New512(key)
-		if err != nil {
-			t.Fatalf("#%d: error from New512: %v", i, err)
-		}
-
-		h.Write(input[:i])
-		sum := h.Sum(nil)
-
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (single write): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-
-		h.Reset()
-		for j := 0; j < i; j++ {
-			h.Write(input[j : j+1])
-		}
-
-		sum = h.Sum(sum[:0])
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (byte-by-byte): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-	}
-}
-
-func testHashes2X(t *testing.T) {
-	key, _ := hex.DecodeString("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f")
-
-	input := make([]byte, 256)
-	for i := range input {
-		input[i] = byte(i)
-	}
-
-	for i, expectedHex := range hashes2X {
-		length := uint32(len(expectedHex) / 2)
-		sum := make([]byte, int(length))
-
-		h, err := NewXOF(length, key)
-		if err != nil {
-			t.Fatalf("#%d: error from NewXOF: %v", i, err)
-		}
-
-		if _, err := h.Write(input); err != nil {
-			t.Fatalf("#%d (single write): error from Write: %v", i, err)
-		}
-		if _, err := h.Read(sum); err != nil {
-			t.Fatalf("#%d (single write): error from Read: %v", i, err)
-		}
-		if n, err := h.Read(sum); n != 0 || err != io.EOF {
-			t.Fatalf("#%d (single write): Read did not return (0, io.EOF) after exhaustion, got (%v, %v)", i, n, err)
-		}
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (single write): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-
-		h.Reset()
-		for j := 0; j < len(input); j++ {
-			h.Write(input[j : j+1])
-		}
-		for j := 0; j < len(sum); j++ {
-			h = h.Clone()
-			if _, err := h.Read(sum[j : j+1]); err != nil {
-				t.Fatalf("#%d (byte-by-byte) - Read %d: error from Read: %v", i, j, err)
-			}
-		}
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (byte-by-byte): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-	}
-
-	h, err := NewXOF(OutputLengthUnknown, key)
-	if err != nil {
-		t.Fatalf("#unknown length: error from NewXOF: %v", err)
-	}
-	if _, err := h.Write(input); err != nil {
-		t.Fatalf("#unknown length: error from Write: %v", err)
-	}
-
-	var result [64]byte
-	if n, err := h.Read(result[:]); err != nil {
-		t.Fatalf("#unknown length: error from Read: %v", err)
-	} else if n != len(result) {
-		t.Fatalf("#unknown length: Read returned %d bytes, want %d", n, len(result))
-	}
-
-	const expected = "3dbba8516da76bf7330055c66ea36cf1005e92714262b24d9710f51d9e126406e1bcd6497059f9331f1091c3634b695428d475ed432f987040575520a1c29f5e"
-	if fmt.Sprintf("%x", result) != expected {
-		t.Fatalf("#unknown length: bad result %x, wanted %s", result, expected)
-	}
-}
-
-func generateSequence(out []byte, seed uint32) {
-	a := 0xDEAD4BAD * seed // prime
-	b := uint32(1)
-
-	for i := range out { // fill the buf
-		a, b = b, a+b
-		out[i] = byte(b >> 24)
-	}
-}
-
-func computeMAC(msg []byte, hashSize int, key []byte) (sum []byte) {
-	var h hash.Hash
-	switch hashSize {
-	case Size:
-		h, _ = New512(key)
-	case Size384:
-		h, _ = New384(key)
-	case Size256:
-		h, _ = New256(key)
-	case 20:
-		h, _ = newDigest(20, key)
-	default:
-		panic("unexpected hashSize")
-	}
-
-	h.Write(msg)
-	return h.Sum(sum)
-}
-
-func computeHash(msg []byte, hashSize int) (sum []byte) {
-	switch hashSize {
-	case Size:
-		hash := Sum512(msg)
-		return hash[:]
-	case Size384:
-		hash := Sum384(msg)
-		return hash[:]
-	case Size256:
-		hash := Sum256(msg)
-		return hash[:]
-	case 20:
-		var hash [64]byte
-		checkSum(&hash, 20, msg)
-		return hash[:20]
-	default:
-		panic("unexpected hashSize")
-	}
-}
-
-// Test function from RFC 7693.
-func TestSelfTest(t *testing.T) {
-	hashLens := [4]int{20, 32, 48, 64}
-	msgLens := [6]int{0, 3, 128, 129, 255, 1024}
-
-	msg := make([]byte, 1024)
-	key := make([]byte, 64)
-
-	h, _ := New256(nil)
-	for _, hashSize := range hashLens {
-		for _, msgLength := range msgLens {
-			generateSequence(msg[:msgLength], uint32(msgLength)) // unkeyed hash
-
-			md := computeHash(msg[:msgLength], hashSize)
-			h.Write(md)
-
-			generateSequence(key[:], uint32(hashSize)) // keyed hash
-			md = computeMAC(msg[:msgLength], hashSize, key[:hashSize])
-			h.Write(md)
-		}
-	}
-
-	sum := h.Sum(nil)
-	expected := [32]byte{
-		0xc2, 0x3a, 0x78, 0x00, 0xd9, 0x81, 0x23, 0xbd,
-		0x10, 0xf5, 0x06, 0xc6, 0x1e, 0x29, 0xda, 0x56,
-		0x03, 0xd7, 0x63, 0xb8, 0xbb, 0xad, 0x2e, 0x73,
-		0x7f, 0x5e, 0x76, 0x5a, 0x7b, 0xcc, 0xd4, 0x75,
-	}
-	if !bytes.Equal(sum, expected[:]) {
-		t.Fatalf("got %x, wanted %x", sum, expected)
-	}
-}
-
-// Benchmarks
-
-func benchmarkSum(b *testing.B, size int) {
-	data := make([]byte, size)
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Sum512(data)
-	}
-}
-
-func benchmarkWrite(b *testing.B, size int) {
-	data := make([]byte, size)
-	h, _ := New512(nil)
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		h.Write(data)
-	}
-}
-
-func BenchmarkWrite128(b *testing.B) { benchmarkWrite(b, 128) }
-func BenchmarkWrite1K(b *testing.B)  { benchmarkWrite(b, 1024) }
-
-func BenchmarkSum128(b *testing.B) { benchmarkSum(b, 128) }
-func BenchmarkSum1K(b *testing.B)  { benchmarkSum(b, 1024) }
-
-// These values were taken from https://blake2.net/blake2b-test.txt.
-var hashes = []string{
-	"10ebb67700b1868efb4417987acf4690ae9d972fb7a590c2f02871799aaa4786b5e996e8f0f4eb981fc214b005f42d2ff4233499391653df7aefcbc13fc51568",
-	"961f6dd1e4dd30f63901690c512e78e4b45e4742ed197c3c5e45c549fd25f2e4187b0bc9fe30492b16b0d0bc4ef9b0f34c7003fac09a5ef1532e69430234cebd",
-	"da2cfbe2d8409a0f38026113884f84b50156371ae304c4430173d08a99d9fb1b983164a3770706d537f49e0c916d9f32b95cc37a95b99d857436f0232c88a965",
-	"33d0825dddf7ada99b0e7e307104ad07ca9cfd9692214f1561356315e784f3e5a17e364ae9dbb14cb2036df932b77f4b292761365fb328de7afdc6d8998f5fc1",
-	"beaa5a3d08f3807143cf621d95cd690514d0b49efff9c91d24b59241ec0eefa5f60196d407048bba8d2146828ebcb0488d8842fd56bb4f6df8e19c4b4daab8ac",
-	"098084b51fd13deae5f4320de94a688ee07baea2800486689a8636117b46c1f4c1f6af7f74ae7c857600456a58a3af251dc4723a64cc7c0a5ab6d9cac91c20bb",
-	"6044540d560853eb1c57df0077dd381094781cdb9073e5b1b3d3f6c7829e12066bbaca96d989a690de72ca3133a83652ba284a6d62942b271ffa2620c9e75b1f",
-	"7a8cfe9b90f75f7ecb3acc053aaed6193112b6f6a4aeeb3f65d3de541942deb9e2228152a3c4bbbe72fc3b12629528cfbb09fe630f0474339f54abf453e2ed52",
-	"380beaf6ea7cc9365e270ef0e6f3a64fb902acae51dd5512f84259ad2c91f4bc4108db73192a5bbfb0cbcf71e46c3e21aee1c5e860dc96e8eb0b7b8426e6abe9",
-	"60fe3c4535e1b59d9a61ea8500bfac41a69dffb1ceadd9aca323e9a625b64da5763bad7226da02b9c8c4f1a5de140ac5a6c1124e4f718ce0b28ea47393aa6637",
-	"4fe181f54ad63a2983feaaf77d1e7235c2beb17fa328b6d9505bda327df19fc37f02c4b6f0368ce23147313a8e5738b5fa2a95b29de1c7f8264eb77b69f585cd",
-	"f228773ce3f3a42b5f144d63237a72d99693adb8837d0e112a8a0f8ffff2c362857ac49c11ec740d1500749dac9b1f4548108bf3155794dcc9e4082849e2b85b",
-	"962452a8455cc56c8511317e3b1f3b2c37df75f588e94325fdd77070359cf63a9ae6e930936fdf8e1e08ffca440cfb72c28f06d89a2151d1c46cd5b268ef8563",
-	"43d44bfa18768c59896bf7ed1765cb2d14af8c260266039099b25a603e4ddc5039d6ef3a91847d1088d401c0c7e847781a8a590d33a3c6cb4df0fab1c2f22355",
-	"dcffa9d58c2a4ca2cdbb0c7aa4c4c1d45165190089f4e983bb1c2cab4aaeff1fa2b5ee516fecd780540240bf37e56c8bcca7fab980e1e61c9400d8a9a5b14ac6",
-	"6fbf31b45ab0c0b8dad1c0f5f4061379912dde5aa922099a030b725c73346c524291adef89d2f6fd8dfcda6d07dad811a9314536c2915ed45da34947e83de34e",
-	"a0c65bddde8adef57282b04b11e7bc8aab105b99231b750c021f4a735cb1bcfab87553bba3abb0c3e64a0b6955285185a0bd35fb8cfde557329bebb1f629ee93",
-	"f99d815550558e81eca2f96718aed10d86f3f1cfb675cce06b0eff02f617c5a42c5aa760270f2679da2677c5aeb94f1142277f21c7f79f3c4f0cce4ed8ee62b1",
-	"95391da8fc7b917a2044b3d6f5374e1ca072b41454d572c7356c05fd4bc1e0f40b8bb8b4a9f6bce9be2c4623c399b0dca0dab05cb7281b71a21b0ebcd9e55670",
-	"04b9cd3d20d221c09ac86913d3dc63041989a9a1e694f1e639a3ba7e451840f750c2fc191d56ad61f2e7936bc0ac8e094b60caeed878c18799045402d61ceaf9",
-	"ec0e0ef707e4ed6c0c66f9e089e4954b058030d2dd86398fe84059631f9ee591d9d77375355149178c0cf8f8e7c49ed2a5e4f95488a2247067c208510fadc44c",
-	"9a37cce273b79c09913677510eaf7688e89b3314d3532fd2764c39de022a2945b5710d13517af8ddc0316624e73bec1ce67df15228302036f330ab0cb4d218dd",
-	"4cf9bb8fb3d4de8b38b2f262d3c40f46dfe747e8fc0a414c193d9fcf753106ce47a18f172f12e8a2f1c26726545358e5ee28c9e2213a8787aafbc516d2343152",
-	"64e0c63af9c808fd893137129867fd91939d53f2af04be4fa268006100069b2d69daa5c5d8ed7fddcb2a70eeecdf2b105dd46a1e3b7311728f639ab489326bc9",
-	"5e9c93158d659b2def06b0c3c7565045542662d6eee8a96a89b78ade09fe8b3dcc096d4fe48815d88d8f82620156602af541955e1f6ca30dce14e254c326b88f",
-	"7775dff889458dd11aef417276853e21335eb88e4dec9cfb4e9edb49820088551a2ca60339f12066101169f0dfe84b098fddb148d9da6b3d613df263889ad64b",
-	"f0d2805afbb91f743951351a6d024f9353a23c7ce1fc2b051b3a8b968c233f46f50f806ecb1568ffaa0b60661e334b21dde04f8fa155ac740eeb42e20b60d764",
-	"86a2af316e7d7754201b942e275364ac12ea8962ab5bd8d7fb276dc5fbffc8f9a28cae4e4867df6780d9b72524160927c855da5b6078e0b554aa91e31cb9ca1d",
-	"10bdf0caa0802705e706369baf8a3f79d72c0a03a80675a7bbb00be3a45e516424d1ee88efb56f6d5777545ae6e27765c3a8f5e493fc308915638933a1dfee55",
-	"b01781092b1748459e2e4ec178696627bf4ebafebba774ecf018b79a68aeb84917bf0b84bb79d17b743151144cd66b7b33a4b9e52c76c4e112050ff5385b7f0b",
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-	"f4d84ed3e564c102600a795eaa9b1eaf4ad12f1a4deca1d042a0a2750ddf6201db03073d8bf553cb9dde48a1b0083827a609f7242b86584cc180964ae794b12ce55661e00e36a6ba4dbc389e6a5a85f1b45df9af7ead1b0a54db56e68639b9d438a91504e82c35d40c7bc7e048a53ac0b04accd0dadf4ac9884b0ca0e3cb5ba4336e3581be4c4760a553823ffa283a1120d4e145af56a59f2533903650f0b9e9ad9fe2e8a3c3c3dd03a1fcb709032c8835324839c735b0c051d0cbd8b5d867617c11023432e4bd275d3d0eb98a0b6cf58071a5b712922f2bc751ac7c2588c447444cde2f37a8ea5ec126425bf517e0d17c9e2999f52fee14b3",
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-	"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",
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-	"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",
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/blake2x.go b/vendor/golang.org/x/crypto/blake2b/blake2x.go
deleted file mode 100644
index c814496..0000000
--- a/vendor/golang.org/x/crypto/blake2b/blake2x.go
+++ /dev/null
@@ -1,177 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2b
-
-import (
-	"encoding/binary"
-	"errors"
-	"io"
-)
-
-// XOF defines the interface to hash functions that
-// support arbitrary-length output.
-type XOF interface {
-	// Write absorbs more data into the hash's state. It panics if called
-	// after Read.
-	io.Writer
-
-	// Read reads more output from the hash. It returns io.EOF if the limit
-	// has been reached.
-	io.Reader
-
-	// Clone returns a copy of the XOF in its current state.
-	Clone() XOF
-
-	// Reset resets the XOF to its initial state.
-	Reset()
-}
-
-// OutputLengthUnknown can be used as the size argument to NewXOF to indicate
-// the the length of the output is not known in advance.
-const OutputLengthUnknown = 0
-
-// magicUnknownOutputLength is a magic value for the output size that indicates
-// an unknown number of output bytes.
-const magicUnknownOutputLength = (1 << 32) - 1
-
-// maxOutputLength is the absolute maximum number of bytes to produce when the
-// number of output bytes is unknown.
-const maxOutputLength = (1 << 32) * 64
-
-// NewXOF creates a new variable-output-length hash. The hash either produce a
-// known number of bytes (1 <= size < 2**32-1), or an unknown number of bytes
-// (size == OutputLengthUnknown). In the latter case, an absolute limit of
-// 256GiB applies.
-//
-// A non-nil key turns the hash into a MAC. The key must between
-// zero and 32 bytes long.
-func NewXOF(size uint32, key []byte) (XOF, error) {
-	if len(key) > Size {
-		return nil, errKeySize
-	}
-	if size == magicUnknownOutputLength {
-		// 2^32-1 indicates an unknown number of bytes and thus isn't a
-		// valid length.
-		return nil, errors.New("blake2b: XOF length too large")
-	}
-	if size == OutputLengthUnknown {
-		size = magicUnknownOutputLength
-	}
-	x := &xof{
-		d: digest{
-			size:   Size,
-			keyLen: len(key),
-		},
-		length: size,
-	}
-	copy(x.d.key[:], key)
-	x.Reset()
-	return x, nil
-}
-
-type xof struct {
-	d                digest
-	length           uint32
-	remaining        uint64
-	cfg, root, block [Size]byte
-	offset           int
-	nodeOffset       uint32
-	readMode         bool
-}
-
-func (x *xof) Write(p []byte) (n int, err error) {
-	if x.readMode {
-		panic("blake2b: write to XOF after read")
-	}
-	return x.d.Write(p)
-}
-
-func (x *xof) Clone() XOF {
-	clone := *x
-	return &clone
-}
-
-func (x *xof) Reset() {
-	x.cfg[0] = byte(Size)
-	binary.LittleEndian.PutUint32(x.cfg[4:], uint32(Size)) // leaf length
-	binary.LittleEndian.PutUint32(x.cfg[12:], x.length)    // XOF length
-	x.cfg[17] = byte(Size)                                 // inner hash size
-
-	x.d.Reset()
-	x.d.h[1] ^= uint64(x.length) << 32
-
-	x.remaining = uint64(x.length)
-	if x.remaining == magicUnknownOutputLength {
-		x.remaining = maxOutputLength
-	}
-	x.offset, x.nodeOffset = 0, 0
-	x.readMode = false
-}
-
-func (x *xof) Read(p []byte) (n int, err error) {
-	if !x.readMode {
-		x.d.finalize(&x.root)
-		x.readMode = true
-	}
-
-	if x.remaining == 0 {
-		return 0, io.EOF
-	}
-
-	n = len(p)
-	if uint64(n) > x.remaining {
-		n = int(x.remaining)
-		p = p[:n]
-	}
-
-	if x.offset > 0 {
-		blockRemaining := Size - x.offset
-		if n < blockRemaining {
-			x.offset += copy(p, x.block[x.offset:])
-			x.remaining -= uint64(n)
-			return
-		}
-		copy(p, x.block[x.offset:])
-		p = p[blockRemaining:]
-		x.offset = 0
-		x.remaining -= uint64(blockRemaining)
-	}
-
-	for len(p) >= Size {
-		binary.LittleEndian.PutUint32(x.cfg[8:], x.nodeOffset)
-		x.nodeOffset++
-
-		x.d.initConfig(&x.cfg)
-		x.d.Write(x.root[:])
-		x.d.finalize(&x.block)
-
-		copy(p, x.block[:])
-		p = p[Size:]
-		x.remaining -= uint64(Size)
-	}
-
-	if todo := len(p); todo > 0 {
-		if x.remaining < uint64(Size) {
-			x.cfg[0] = byte(x.remaining)
-		}
-		binary.LittleEndian.PutUint32(x.cfg[8:], x.nodeOffset)
-		x.nodeOffset++
-
-		x.d.initConfig(&x.cfg)
-		x.d.Write(x.root[:])
-		x.d.finalize(&x.block)
-
-		x.offset = copy(p, x.block[:todo])
-		x.remaining -= uint64(todo)
-	}
-	return
-}
-
-func (d *digest) initConfig(cfg *[Size]byte) {
-	d.offset, d.c[0], d.c[1] = 0, 0, 0
-	for i := range d.h {
-		d.h[i] = iv[i] ^ binary.LittleEndian.Uint64(cfg[i*8:])
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2b/register.go b/vendor/golang.org/x/crypto/blake2b/register.go
deleted file mode 100644
index efd689a..0000000
--- a/vendor/golang.org/x/crypto/blake2b/register.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.9
-
-package blake2b
-
-import (
-	"crypto"
-	"hash"
-)
-
-func init() {
-	newHash256 := func() hash.Hash {
-		h, _ := New256(nil)
-		return h
-	}
-	newHash384 := func() hash.Hash {
-		h, _ := New384(nil)
-		return h
-	}
-
-	newHash512 := func() hash.Hash {
-		h, _ := New512(nil)
-		return h
-	}
-
-	crypto.RegisterHash(crypto.BLAKE2b_256, newHash256)
-	crypto.RegisterHash(crypto.BLAKE2b_384, newHash384)
-	crypto.RegisterHash(crypto.BLAKE2b_512, newHash512)
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s.go b/vendor/golang.org/x/crypto/blake2s/blake2s.go
deleted file mode 100644
index 5fb4a9e..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s.go
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package blake2s implements the BLAKE2s hash algorithm defined by RFC 7693
-// and the extendable output function (XOF) BLAKE2Xs.
-//
-// For a detailed specification of BLAKE2s see https://blake2.net/blake2.pdf
-// and for BLAKE2Xs see https://blake2.net/blake2x.pdf
-//
-// If you aren't sure which function you need, use BLAKE2s (Sum256 or New256).
-// If you need a secret-key MAC (message authentication code), use the New256
-// function with a non-nil key.
-//
-// BLAKE2X is a construction to compute hash values larger than 32 bytes. It
-// can produce hash values between 0 and 65535 bytes.
-package blake2s // import "golang.org/x/crypto/blake2s"
-
-import (
-	"encoding/binary"
-	"errors"
-	"hash"
-)
-
-const (
-	// The blocksize of BLAKE2s in bytes.
-	BlockSize = 64
-
-	// The hash size of BLAKE2s-256 in bytes.
-	Size = 32
-
-	// The hash size of BLAKE2s-128 in bytes.
-	Size128 = 16
-)
-
-var errKeySize = errors.New("blake2s: invalid key size")
-
-var iv = [8]uint32{
-	0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
-	0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
-}
-
-// Sum256 returns the BLAKE2s-256 checksum of the data.
-func Sum256(data []byte) [Size]byte {
-	var sum [Size]byte
-	checkSum(&sum, Size, data)
-	return sum
-}
-
-// New256 returns a new hash.Hash computing the BLAKE2s-256 checksum. A non-nil
-// key turns the hash into a MAC. The key must between zero and 32 bytes long.
-// When the key is nil, the returned hash.Hash implements BinaryMarshaler
-// and BinaryUnmarshaler for state (de)serialization as documented by hash.Hash.
-func New256(key []byte) (hash.Hash, error) { return newDigest(Size, key) }
-
-// New128 returns a new hash.Hash computing the BLAKE2s-128 checksum given a
-// non-empty key. Note that a 128-bit digest is too small to be secure as a
-// cryptographic hash and should only be used as a MAC, thus the key argument
-// is not optional.
-func New128(key []byte) (hash.Hash, error) {
-	if len(key) == 0 {
-		return nil, errors.New("blake2s: a key is required for a 128-bit hash")
-	}
-	return newDigest(Size128, key)
-}
-
-func newDigest(hashSize int, key []byte) (*digest, error) {
-	if len(key) > Size {
-		return nil, errKeySize
-	}
-	d := &digest{
-		size:   hashSize,
-		keyLen: len(key),
-	}
-	copy(d.key[:], key)
-	d.Reset()
-	return d, nil
-}
-
-func checkSum(sum *[Size]byte, hashSize int, data []byte) {
-	var (
-		h [8]uint32
-		c [2]uint32
-	)
-
-	h = iv
-	h[0] ^= uint32(hashSize) | (1 << 16) | (1 << 24)
-
-	if length := len(data); length > BlockSize {
-		n := length &^ (BlockSize - 1)
-		if length == n {
-			n -= BlockSize
-		}
-		hashBlocks(&h, &c, 0, data[:n])
-		data = data[n:]
-	}
-
-	var block [BlockSize]byte
-	offset := copy(block[:], data)
-	remaining := uint32(BlockSize - offset)
-
-	if c[0] < remaining {
-		c[1]--
-	}
-	c[0] -= remaining
-
-	hashBlocks(&h, &c, 0xFFFFFFFF, block[:])
-
-	for i, v := range h {
-		binary.LittleEndian.PutUint32(sum[4*i:], v)
-	}
-}
-
-type digest struct {
-	h      [8]uint32
-	c      [2]uint32
-	size   int
-	block  [BlockSize]byte
-	offset int
-
-	key    [BlockSize]byte
-	keyLen int
-}
-
-const (
-	magic         = "b2s"
-	marshaledSize = len(magic) + 8*4 + 2*4 + 1 + BlockSize + 1
-)
-
-func (d *digest) MarshalBinary() ([]byte, error) {
-	if d.keyLen != 0 {
-		return nil, errors.New("crypto/blake2s: cannot marshal MACs")
-	}
-	b := make([]byte, 0, marshaledSize)
-	b = append(b, magic...)
-	for i := 0; i < 8; i++ {
-		b = appendUint32(b, d.h[i])
-	}
-	b = appendUint32(b, d.c[0])
-	b = appendUint32(b, d.c[1])
-	// Maximum value for size is 32
-	b = append(b, byte(d.size))
-	b = append(b, d.block[:]...)
-	b = append(b, byte(d.offset))
-	return b, nil
-}
-
-func (d *digest) UnmarshalBinary(b []byte) error {
-	if len(b) < len(magic) || string(b[:len(magic)]) != magic {
-		return errors.New("crypto/blake2s: invalid hash state identifier")
-	}
-	if len(b) != marshaledSize {
-		return errors.New("crypto/blake2s: invalid hash state size")
-	}
-	b = b[len(magic):]
-	for i := 0; i < 8; i++ {
-		b, d.h[i] = consumeUint32(b)
-	}
-	b, d.c[0] = consumeUint32(b)
-	b, d.c[1] = consumeUint32(b)
-	d.size = int(b[0])
-	b = b[1:]
-	copy(d.block[:], b[:BlockSize])
-	b = b[BlockSize:]
-	d.offset = int(b[0])
-	return nil
-}
-
-func (d *digest) BlockSize() int { return BlockSize }
-
-func (d *digest) Size() int { return d.size }
-
-func (d *digest) Reset() {
-	d.h = iv
-	d.h[0] ^= uint32(d.size) | (uint32(d.keyLen) << 8) | (1 << 16) | (1 << 24)
-	d.offset, d.c[0], d.c[1] = 0, 0, 0
-	if d.keyLen > 0 {
-		d.block = d.key
-		d.offset = BlockSize
-	}
-}
-
-func (d *digest) Write(p []byte) (n int, err error) {
-	n = len(p)
-
-	if d.offset > 0 {
-		remaining := BlockSize - d.offset
-		if n <= remaining {
-			d.offset += copy(d.block[d.offset:], p)
-			return
-		}
-		copy(d.block[d.offset:], p[:remaining])
-		hashBlocks(&d.h, &d.c, 0, d.block[:])
-		d.offset = 0
-		p = p[remaining:]
-	}
-
-	if length := len(p); length > BlockSize {
-		nn := length &^ (BlockSize - 1)
-		if length == nn {
-			nn -= BlockSize
-		}
-		hashBlocks(&d.h, &d.c, 0, p[:nn])
-		p = p[nn:]
-	}
-
-	d.offset += copy(d.block[:], p)
-	return
-}
-
-func (d *digest) Sum(sum []byte) []byte {
-	var hash [Size]byte
-	d.finalize(&hash)
-	return append(sum, hash[:d.size]...)
-}
-
-func (d *digest) finalize(hash *[Size]byte) {
-	var block [BlockSize]byte
-	h := d.h
-	c := d.c
-
-	copy(block[:], d.block[:d.offset])
-	remaining := uint32(BlockSize - d.offset)
-	if c[0] < remaining {
-		c[1]--
-	}
-	c[0] -= remaining
-
-	hashBlocks(&h, &c, 0xFFFFFFFF, block[:])
-	for i, v := range h {
-		binary.LittleEndian.PutUint32(hash[4*i:], v)
-	}
-}
-
-func appendUint32(b []byte, x uint32) []byte {
-	var a [4]byte
-	binary.BigEndian.PutUint32(a[:], x)
-	return append(b, a[:]...)
-}
-
-func consumeUint32(b []byte) ([]byte, uint32) {
-	x := binary.BigEndian.Uint32(b)
-	return b[4:], x
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_386.go b/vendor/golang.org/x/crypto/blake2s/blake2s_386.go
deleted file mode 100644
index d8f9cea..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_386.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386,!gccgo,!appengine
-
-package blake2s
-
-import "golang.org/x/sys/cpu"
-
-var (
-	useSSE4  = false
-	useSSSE3 = cpu.X86.HasSSSE3
-	useSSE2  = cpu.X86.HasSSE2
-)
-
-//go:noescape
-func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-
-//go:noescape
-func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-
-func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
-	switch {
-	case useSSSE3:
-		hashBlocksSSSE3(h, c, flag, blocks)
-	case useSSE2:
-		hashBlocksSSE2(h, c, flag, blocks)
-	default:
-		hashBlocksGeneric(h, c, flag, blocks)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_386.s b/vendor/golang.org/x/crypto/blake2s/blake2s_386.s
deleted file mode 100644
index c123e5d..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_386.s
+++ /dev/null
@@ -1,435 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build 386,!gccgo,!appengine
-
-#include "textflag.h"
-
-DATA iv0<>+0x00(SB)/4, $0x6a09e667
-DATA iv0<>+0x04(SB)/4, $0xbb67ae85
-DATA iv0<>+0x08(SB)/4, $0x3c6ef372
-DATA iv0<>+0x0c(SB)/4, $0xa54ff53a
-GLOBL iv0<>(SB), (NOPTR+RODATA), $16
-
-DATA iv1<>+0x00(SB)/4, $0x510e527f
-DATA iv1<>+0x04(SB)/4, $0x9b05688c
-DATA iv1<>+0x08(SB)/4, $0x1f83d9ab
-DATA iv1<>+0x0c(SB)/4, $0x5be0cd19
-GLOBL iv1<>(SB), (NOPTR+RODATA), $16
-
-DATA rol16<>+0x00(SB)/8, $0x0504070601000302
-DATA rol16<>+0x08(SB)/8, $0x0D0C0F0E09080B0A
-GLOBL rol16<>(SB), (NOPTR+RODATA), $16
-
-DATA rol8<>+0x00(SB)/8, $0x0407060500030201
-DATA rol8<>+0x08(SB)/8, $0x0C0F0E0D080B0A09
-GLOBL rol8<>(SB), (NOPTR+RODATA), $16
-
-DATA counter<>+0x00(SB)/8, $0x40
-DATA counter<>+0x08(SB)/8, $0x0
-GLOBL counter<>(SB), (NOPTR+RODATA), $16
-
-#define ROTL_SSE2(n, t, v) \
-	MOVO  v, t;       \
-	PSLLL $n, t;      \
-	PSRLL $(32-n), v; \
-	PXOR  t, v
-
-#define ROTL_SSSE3(c, v) \
-	PSHUFB c, v
-
-#define ROUND_SSE2(v0, v1, v2, v3, m0, m1, m2, m3, t) \
-	PADDL  m0, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(16, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m1, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(24, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v1, v1; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v3, v3; \
-	PADDL  m2, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(16, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m3, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(24, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v3, v3; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v1, v1
-
-#define ROUND_SSSE3(v0, v1, v2, v3, m0, m1, m2, m3, t, c16, c8) \
-	PADDL  m0, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c16, v3);  \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m1, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c8, v3);   \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v1, v1; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v3, v3; \
-	PADDL  m2, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c16, v3);  \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m3, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c8, v3);   \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v3, v3; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v1, v1
-
-#define PRECOMPUTE(dst, off, src, t) \
-	MOVL 0*4(src), t;          \
-	MOVL t, 0*4+off+0(dst);    \
-	MOVL t, 9*4+off+64(dst);   \
-	MOVL t, 5*4+off+128(dst);  \
-	MOVL t, 14*4+off+192(dst); \
-	MOVL t, 4*4+off+256(dst);  \
-	MOVL t, 2*4+off+320(dst);  \
-	MOVL t, 8*4+off+384(dst);  \
-	MOVL t, 12*4+off+448(dst); \
-	MOVL t, 3*4+off+512(dst);  \
-	MOVL t, 15*4+off+576(dst); \
-	MOVL 1*4(src), t;          \
-	MOVL t, 4*4+off+0(dst);    \
-	MOVL t, 8*4+off+64(dst);   \
-	MOVL t, 14*4+off+128(dst); \
-	MOVL t, 5*4+off+192(dst);  \
-	MOVL t, 12*4+off+256(dst); \
-	MOVL t, 11*4+off+320(dst); \
-	MOVL t, 1*4+off+384(dst);  \
-	MOVL t, 6*4+off+448(dst);  \
-	MOVL t, 10*4+off+512(dst); \
-	MOVL t, 3*4+off+576(dst);  \
-	MOVL 2*4(src), t;          \
-	MOVL t, 1*4+off+0(dst);    \
-	MOVL t, 13*4+off+64(dst);  \
-	MOVL t, 6*4+off+128(dst);  \
-	MOVL t, 8*4+off+192(dst);  \
-	MOVL t, 2*4+off+256(dst);  \
-	MOVL t, 0*4+off+320(dst);  \
-	MOVL t, 14*4+off+384(dst); \
-	MOVL t, 11*4+off+448(dst); \
-	MOVL t, 12*4+off+512(dst); \
-	MOVL t, 4*4+off+576(dst);  \
-	MOVL 3*4(src), t;          \
-	MOVL t, 5*4+off+0(dst);    \
-	MOVL t, 15*4+off+64(dst);  \
-	MOVL t, 9*4+off+128(dst);  \
-	MOVL t, 1*4+off+192(dst);  \
-	MOVL t, 11*4+off+256(dst); \
-	MOVL t, 7*4+off+320(dst);  \
-	MOVL t, 13*4+off+384(dst); \
-	MOVL t, 3*4+off+448(dst);  \
-	MOVL t, 6*4+off+512(dst);  \
-	MOVL t, 10*4+off+576(dst); \
-	MOVL 4*4(src), t;          \
-	MOVL t, 2*4+off+0(dst);    \
-	MOVL t, 1*4+off+64(dst);   \
-	MOVL t, 15*4+off+128(dst); \
-	MOVL t, 10*4+off+192(dst); \
-	MOVL t, 6*4+off+256(dst);  \
-	MOVL t, 8*4+off+320(dst);  \
-	MOVL t, 3*4+off+384(dst);  \
-	MOVL t, 13*4+off+448(dst); \
-	MOVL t, 14*4+off+512(dst); \
-	MOVL t, 5*4+off+576(dst);  \
-	MOVL 5*4(src), t;          \
-	MOVL t, 6*4+off+0(dst);    \
-	MOVL t, 11*4+off+64(dst);  \
-	MOVL t, 2*4+off+128(dst);  \
-	MOVL t, 9*4+off+192(dst);  \
-	MOVL t, 1*4+off+256(dst);  \
-	MOVL t, 13*4+off+320(dst); \
-	MOVL t, 4*4+off+384(dst);  \
-	MOVL t, 8*4+off+448(dst);  \
-	MOVL t, 15*4+off+512(dst); \
-	MOVL t, 7*4+off+576(dst);  \
-	MOVL 6*4(src), t;          \
-	MOVL t, 3*4+off+0(dst);    \
-	MOVL t, 7*4+off+64(dst);   \
-	MOVL t, 13*4+off+128(dst); \
-	MOVL t, 12*4+off+192(dst); \
-	MOVL t, 10*4+off+256(dst); \
-	MOVL t, 1*4+off+320(dst);  \
-	MOVL t, 9*4+off+384(dst);  \
-	MOVL t, 14*4+off+448(dst); \
-	MOVL t, 0*4+off+512(dst);  \
-	MOVL t, 6*4+off+576(dst);  \
-	MOVL 7*4(src), t;          \
-	MOVL t, 7*4+off+0(dst);    \
-	MOVL t, 14*4+off+64(dst);  \
-	MOVL t, 10*4+off+128(dst); \
-	MOVL t, 0*4+off+192(dst);  \
-	MOVL t, 5*4+off+256(dst);  \
-	MOVL t, 9*4+off+320(dst);  \
-	MOVL t, 12*4+off+384(dst); \
-	MOVL t, 1*4+off+448(dst);  \
-	MOVL t, 13*4+off+512(dst); \
-	MOVL t, 2*4+off+576(dst);  \
-	MOVL 8*4(src), t;          \
-	MOVL t, 8*4+off+0(dst);    \
-	MOVL t, 5*4+off+64(dst);   \
-	MOVL t, 4*4+off+128(dst);  \
-	MOVL t, 15*4+off+192(dst); \
-	MOVL t, 14*4+off+256(dst); \
-	MOVL t, 3*4+off+320(dst);  \
-	MOVL t, 11*4+off+384(dst); \
-	MOVL t, 10*4+off+448(dst); \
-	MOVL t, 7*4+off+512(dst);  \
-	MOVL t, 1*4+off+576(dst);  \
-	MOVL 9*4(src), t;          \
-	MOVL t, 12*4+off+0(dst);   \
-	MOVL t, 2*4+off+64(dst);   \
-	MOVL t, 11*4+off+128(dst); \
-	MOVL t, 4*4+off+192(dst);  \
-	MOVL t, 0*4+off+256(dst);  \
-	MOVL t, 15*4+off+320(dst); \
-	MOVL t, 10*4+off+384(dst); \
-	MOVL t, 7*4+off+448(dst);  \
-	MOVL t, 5*4+off+512(dst);  \
-	MOVL t, 9*4+off+576(dst);  \
-	MOVL 10*4(src), t;         \
-	MOVL t, 9*4+off+0(dst);    \
-	MOVL t, 4*4+off+64(dst);   \
-	MOVL t, 8*4+off+128(dst);  \
-	MOVL t, 13*4+off+192(dst); \
-	MOVL t, 3*4+off+256(dst);  \
-	MOVL t, 5*4+off+320(dst);  \
-	MOVL t, 7*4+off+384(dst);  \
-	MOVL t, 15*4+off+448(dst); \
-	MOVL t, 11*4+off+512(dst); \
-	MOVL t, 0*4+off+576(dst);  \
-	MOVL 11*4(src), t;         \
-	MOVL t, 13*4+off+0(dst);   \
-	MOVL t, 10*4+off+64(dst);  \
-	MOVL t, 0*4+off+128(dst);  \
-	MOVL t, 3*4+off+192(dst);  \
-	MOVL t, 9*4+off+256(dst);  \
-	MOVL t, 6*4+off+320(dst);  \
-	MOVL t, 15*4+off+384(dst); \
-	MOVL t, 4*4+off+448(dst);  \
-	MOVL t, 2*4+off+512(dst);  \
-	MOVL t, 12*4+off+576(dst); \
-	MOVL 12*4(src), t;         \
-	MOVL t, 10*4+off+0(dst);   \
-	MOVL t, 12*4+off+64(dst);  \
-	MOVL t, 1*4+off+128(dst);  \
-	MOVL t, 6*4+off+192(dst);  \
-	MOVL t, 13*4+off+256(dst); \
-	MOVL t, 4*4+off+320(dst);  \
-	MOVL t, 0*4+off+384(dst);  \
-	MOVL t, 2*4+off+448(dst);  \
-	MOVL t, 8*4+off+512(dst);  \
-	MOVL t, 14*4+off+576(dst); \
-	MOVL 13*4(src), t;         \
-	MOVL t, 14*4+off+0(dst);   \
-	MOVL t, 3*4+off+64(dst);   \
-	MOVL t, 7*4+off+128(dst);  \
-	MOVL t, 2*4+off+192(dst);  \
-	MOVL t, 15*4+off+256(dst); \
-	MOVL t, 12*4+off+320(dst); \
-	MOVL t, 6*4+off+384(dst);  \
-	MOVL t, 0*4+off+448(dst);  \
-	MOVL t, 9*4+off+512(dst);  \
-	MOVL t, 11*4+off+576(dst); \
-	MOVL 14*4(src), t;         \
-	MOVL t, 11*4+off+0(dst);   \
-	MOVL t, 0*4+off+64(dst);   \
-	MOVL t, 12*4+off+128(dst); \
-	MOVL t, 7*4+off+192(dst);  \
-	MOVL t, 8*4+off+256(dst);  \
-	MOVL t, 14*4+off+320(dst); \
-	MOVL t, 2*4+off+384(dst);  \
-	MOVL t, 5*4+off+448(dst);  \
-	MOVL t, 1*4+off+512(dst);  \
-	MOVL t, 13*4+off+576(dst); \
-	MOVL 15*4(src), t;         \
-	MOVL t, 15*4+off+0(dst);   \
-	MOVL t, 6*4+off+64(dst);   \
-	MOVL t, 3*4+off+128(dst);  \
-	MOVL t, 11*4+off+192(dst); \
-	MOVL t, 7*4+off+256(dst);  \
-	MOVL t, 10*4+off+320(dst); \
-	MOVL t, 5*4+off+384(dst);  \
-	MOVL t, 9*4+off+448(dst);  \
-	MOVL t, 4*4+off+512(dst);  \
-	MOVL t, 8*4+off+576(dst)
-
-// func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-TEXT ·hashBlocksSSE2(SB), 0, $672-24 // frame = 656 + 16 byte alignment
-	MOVL h+0(FP), AX
-	MOVL c+4(FP), BX
-	MOVL flag+8(FP), CX
-	MOVL blocks_base+12(FP), SI
-	MOVL blocks_len+16(FP), DX
-
-	MOVL SP, BP
-	MOVL SP, DI
-	ADDL $15, DI
-	ANDL $~15, DI
-	MOVL DI, SP
-
-	MOVL CX, 8(SP)
-	MOVL 0(BX), CX
-	MOVL CX, 0(SP)
-	MOVL 4(BX), CX
-	MOVL CX, 4(SP)
-	XORL CX, CX
-	MOVL CX, 12(SP)
-
-	MOVOU 0(AX), X0
-	MOVOU 16(AX), X1
-	MOVOU counter<>(SB), X2
-
-loop:
-	MOVO  X0, X4
-	MOVO  X1, X5
-	MOVOU iv0<>(SB), X6
-	MOVOU iv1<>(SB), X7
-
-	MOVO  0(SP), X3
-	PADDQ X2, X3
-	PXOR  X3, X7
-	MOVO  X3, 0(SP)
-
-	PRECOMPUTE(SP, 16, SI, CX)
-	ROUND_SSE2(X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+64(SP), 32+64(SP), 48+64(SP), 64+64(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+128(SP), 32+128(SP), 48+128(SP), 64+128(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+192(SP), 32+192(SP), 48+192(SP), 64+192(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+256(SP), 32+256(SP), 48+256(SP), 64+256(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+320(SP), 32+320(SP), 48+320(SP), 64+320(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+384(SP), 32+384(SP), 48+384(SP), 64+384(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+448(SP), 32+448(SP), 48+448(SP), 64+448(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+512(SP), 32+512(SP), 48+512(SP), 64+512(SP), X3)
-	ROUND_SSE2(X4, X5, X6, X7, 16+576(SP), 32+576(SP), 48+576(SP), 64+576(SP), X3)
-
-	PXOR X4, X0
-	PXOR X5, X1
-	PXOR X6, X0
-	PXOR X7, X1
-
-	LEAL 64(SI), SI
-	SUBL $64, DX
-	JNE  loop
-
-	MOVL 0(SP), CX
-	MOVL CX, 0(BX)
-	MOVL 4(SP), CX
-	MOVL CX, 4(BX)
-
-	MOVOU X0, 0(AX)
-	MOVOU X1, 16(AX)
-
-	MOVL BP, SP
-	RET
-
-// func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-TEXT ·hashBlocksSSSE3(SB), 0, $704-24 // frame = 688 + 16 byte alignment
-	MOVL h+0(FP), AX
-	MOVL c+4(FP), BX
-	MOVL flag+8(FP), CX
-	MOVL blocks_base+12(FP), SI
-	MOVL blocks_len+16(FP), DX
-
-	MOVL SP, BP
-	MOVL SP, DI
-	ADDL $15, DI
-	ANDL $~15, DI
-	MOVL DI, SP
-
-	MOVL CX, 8(SP)
-	MOVL 0(BX), CX
-	MOVL CX, 0(SP)
-	MOVL 4(BX), CX
-	MOVL CX, 4(SP)
-	XORL CX, CX
-	MOVL CX, 12(SP)
-
-	MOVOU 0(AX), X0
-	MOVOU 16(AX), X1
-	MOVOU counter<>(SB), X2
-
-loop:
-	MOVO  X0, 656(SP)
-	MOVO  X1, 672(SP)
-	MOVO  X0, X4
-	MOVO  X1, X5
-	MOVOU iv0<>(SB), X6
-	MOVOU iv1<>(SB), X7
-
-	MOVO  0(SP), X3
-	PADDQ X2, X3
-	PXOR  X3, X7
-	MOVO  X3, 0(SP)
-
-	MOVOU rol16<>(SB), X0
-	MOVOU rol8<>(SB), X1
-
-	PRECOMPUTE(SP, 16, SI, CX)
-	ROUND_SSSE3(X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+64(SP), 32+64(SP), 48+64(SP), 64+64(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+128(SP), 32+128(SP), 48+128(SP), 64+128(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+192(SP), 32+192(SP), 48+192(SP), 64+192(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+256(SP), 32+256(SP), 48+256(SP), 64+256(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+320(SP), 32+320(SP), 48+320(SP), 64+320(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+384(SP), 32+384(SP), 48+384(SP), 64+384(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+448(SP), 32+448(SP), 48+448(SP), 64+448(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+512(SP), 32+512(SP), 48+512(SP), 64+512(SP), X3, X0, X1)
-	ROUND_SSSE3(X4, X5, X6, X7, 16+576(SP), 32+576(SP), 48+576(SP), 64+576(SP), X3, X0, X1)
-
-	MOVO 656(SP), X0
-	MOVO 672(SP), X1
-	PXOR X4, X0
-	PXOR X5, X1
-	PXOR X6, X0
-	PXOR X7, X1
-
-	LEAL 64(SI), SI
-	SUBL $64, DX
-	JNE  loop
-
-	MOVL 0(SP), CX
-	MOVL CX, 0(BX)
-	MOVL 4(SP), CX
-	MOVL CX, 4(BX)
-
-	MOVOU X0, 0(AX)
-	MOVOU X1, 16(AX)
-
-	MOVL BP, SP
-	RET
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.go b/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.go
deleted file mode 100644
index 4e8d2d7..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.go
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-package blake2s
-
-import "golang.org/x/sys/cpu"
-
-var (
-	useSSE4  = cpu.X86.HasSSE41
-	useSSSE3 = cpu.X86.HasSSSE3
-	useSSE2  = cpu.X86.HasSSE2
-)
-
-//go:noescape
-func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-
-//go:noescape
-func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-
-//go:noescape
-func hashBlocksSSE4(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-
-func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
-	switch {
-	case useSSE4:
-		hashBlocksSSE4(h, c, flag, blocks)
-	case useSSSE3:
-		hashBlocksSSSE3(h, c, flag, blocks)
-	case useSSE2:
-		hashBlocksSSE2(h, c, flag, blocks)
-	default:
-		hashBlocksGeneric(h, c, flag, blocks)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.s b/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.s
deleted file mode 100644
index 8da2802..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_amd64.s
+++ /dev/null
@@ -1,438 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-#include "textflag.h"
-
-DATA iv0<>+0x00(SB)/4, $0x6a09e667
-DATA iv0<>+0x04(SB)/4, $0xbb67ae85
-DATA iv0<>+0x08(SB)/4, $0x3c6ef372
-DATA iv0<>+0x0c(SB)/4, $0xa54ff53a
-GLOBL iv0<>(SB), (NOPTR+RODATA), $16
-
-DATA iv1<>+0x00(SB)/4, $0x510e527f
-DATA iv1<>+0x04(SB)/4, $0x9b05688c
-DATA iv1<>+0x08(SB)/4, $0x1f83d9ab
-DATA iv1<>+0x0c(SB)/4, $0x5be0cd19
-GLOBL iv1<>(SB), (NOPTR+RODATA), $16
-
-DATA rol16<>+0x00(SB)/8, $0x0504070601000302
-DATA rol16<>+0x08(SB)/8, $0x0D0C0F0E09080B0A
-GLOBL rol16<>(SB), (NOPTR+RODATA), $16
-
-DATA rol8<>+0x00(SB)/8, $0x0407060500030201
-DATA rol8<>+0x08(SB)/8, $0x0C0F0E0D080B0A09
-GLOBL rol8<>(SB), (NOPTR+RODATA), $16
-
-DATA counter<>+0x00(SB)/8, $0x40
-DATA counter<>+0x08(SB)/8, $0x0
-GLOBL counter<>(SB), (NOPTR+RODATA), $16
-
-#define ROTL_SSE2(n, t, v) \
-	MOVO  v, t;       \
-	PSLLL $n, t;      \
-	PSRLL $(32-n), v; \
-	PXOR  t, v
-
-#define ROTL_SSSE3(c, v) \
-	PSHUFB c, v
-
-#define ROUND_SSE2(v0, v1, v2, v3, m0, m1, m2, m3, t) \
-	PADDL  m0, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(16, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m1, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(24, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v1, v1; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v3, v3; \
-	PADDL  m2, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(16, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m3, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSE2(24, t, v3); \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v3, v3; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v1, v1
-
-#define ROUND_SSSE3(v0, v1, v2, v3, m0, m1, m2, m3, t, c16, c8) \
-	PADDL  m0, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c16, v3);  \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m1, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c8, v3);   \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v1, v1; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v3, v3; \
-	PADDL  m2, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c16, v3);  \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(20, t, v1); \
-	PADDL  m3, v0;        \
-	PADDL  v1, v0;        \
-	PXOR   v0, v3;        \
-	ROTL_SSSE3(c8, v3);   \
-	PADDL  v3, v2;        \
-	PXOR   v2, v1;        \
-	ROTL_SSE2(25, t, v1); \
-	PSHUFL $0x39, v3, v3; \
-	PSHUFL $0x4E, v2, v2; \
-	PSHUFL $0x93, v1, v1
-
-
-#define LOAD_MSG_SSE4(m0, m1, m2, m3, src, i0, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, i11, i12, i13, i14, i15) \
-	MOVL   i0*4(src), m0;      \
-	PINSRD $1, i1*4(src), m0;  \
-	PINSRD $2, i2*4(src), m0;  \
-	PINSRD $3, i3*4(src), m0;  \
-	MOVL   i4*4(src), m1;      \
-	PINSRD $1, i5*4(src), m1;  \
-	PINSRD $2, i6*4(src), m1;  \
-	PINSRD $3, i7*4(src), m1;  \
-	MOVL   i8*4(src), m2;      \
-	PINSRD $1, i9*4(src), m2;  \
-	PINSRD $2, i10*4(src), m2; \
-	PINSRD $3, i11*4(src), m2; \
-	MOVL   i12*4(src), m3;     \
-	PINSRD $1, i13*4(src), m3; \
-	PINSRD $2, i14*4(src), m3; \
-	PINSRD $3, i15*4(src), m3
-
-#define PRECOMPUTE_MSG(dst, off, src, R8, R9, R10, R11, R12, R13, R14, R15) \
-	MOVQ 0*4(src), R8;           \
-	MOVQ 2*4(src), R9;           \
-	MOVQ 4*4(src), R10;          \
-	MOVQ 6*4(src), R11;          \
-	MOVQ 8*4(src), R12;          \
-	MOVQ 10*4(src), R13;         \
-	MOVQ 12*4(src), R14;         \
-	MOVQ 14*4(src), R15;         \
-	                             \
-	MOVL R8, 0*4+off+0(dst);     \
-	MOVL R8, 9*4+off+64(dst);    \
-	MOVL R8, 5*4+off+128(dst);   \
-	MOVL R8, 14*4+off+192(dst);  \
-	MOVL R8, 4*4+off+256(dst);   \
-	MOVL R8, 2*4+off+320(dst);   \
-	MOVL R8, 8*4+off+384(dst);   \
-	MOVL R8, 12*4+off+448(dst);  \
-	MOVL R8, 3*4+off+512(dst);   \
-	MOVL R8, 15*4+off+576(dst);  \
-	SHRQ $32, R8;                \
-	MOVL R8, 4*4+off+0(dst);     \
-	MOVL R8, 8*4+off+64(dst);    \
-	MOVL R8, 14*4+off+128(dst);  \
-	MOVL R8, 5*4+off+192(dst);   \
-	MOVL R8, 12*4+off+256(dst);  \
-	MOVL R8, 11*4+off+320(dst);  \
-	MOVL R8, 1*4+off+384(dst);   \
-	MOVL R8, 6*4+off+448(dst);   \
-	MOVL R8, 10*4+off+512(dst);  \
-	MOVL R8, 3*4+off+576(dst);   \
-	                             \
-	MOVL R9, 1*4+off+0(dst);     \
-	MOVL R9, 13*4+off+64(dst);   \
-	MOVL R9, 6*4+off+128(dst);   \
-	MOVL R9, 8*4+off+192(dst);   \
-	MOVL R9, 2*4+off+256(dst);   \
-	MOVL R9, 0*4+off+320(dst);   \
-	MOVL R9, 14*4+off+384(dst);  \
-	MOVL R9, 11*4+off+448(dst);  \
-	MOVL R9, 12*4+off+512(dst);  \
-	MOVL R9, 4*4+off+576(dst);   \
-	SHRQ $32, R9;                \
-	MOVL R9, 5*4+off+0(dst);     \
-	MOVL R9, 15*4+off+64(dst);   \
-	MOVL R9, 9*4+off+128(dst);   \
-	MOVL R9, 1*4+off+192(dst);   \
-	MOVL R9, 11*4+off+256(dst);  \
-	MOVL R9, 7*4+off+320(dst);   \
-	MOVL R9, 13*4+off+384(dst);  \
-	MOVL R9, 3*4+off+448(dst);   \
-	MOVL R9, 6*4+off+512(dst);   \
-	MOVL R9, 10*4+off+576(dst);  \
-	                             \
-	MOVL R10, 2*4+off+0(dst);    \
-	MOVL R10, 1*4+off+64(dst);   \
-	MOVL R10, 15*4+off+128(dst); \
-	MOVL R10, 10*4+off+192(dst); \
-	MOVL R10, 6*4+off+256(dst);  \
-	MOVL R10, 8*4+off+320(dst);  \
-	MOVL R10, 3*4+off+384(dst);  \
-	MOVL R10, 13*4+off+448(dst); \
-	MOVL R10, 14*4+off+512(dst); \
-	MOVL R10, 5*4+off+576(dst);  \
-	SHRQ $32, R10;               \
-	MOVL R10, 6*4+off+0(dst);    \
-	MOVL R10, 11*4+off+64(dst);  \
-	MOVL R10, 2*4+off+128(dst);  \
-	MOVL R10, 9*4+off+192(dst);  \
-	MOVL R10, 1*4+off+256(dst);  \
-	MOVL R10, 13*4+off+320(dst); \
-	MOVL R10, 4*4+off+384(dst);  \
-	MOVL R10, 8*4+off+448(dst);  \
-	MOVL R10, 15*4+off+512(dst); \
-	MOVL R10, 7*4+off+576(dst);  \
-	                             \
-	MOVL R11, 3*4+off+0(dst);    \
-	MOVL R11, 7*4+off+64(dst);   \
-	MOVL R11, 13*4+off+128(dst); \
-	MOVL R11, 12*4+off+192(dst); \
-	MOVL R11, 10*4+off+256(dst); \
-	MOVL R11, 1*4+off+320(dst);  \
-	MOVL R11, 9*4+off+384(dst);  \
-	MOVL R11, 14*4+off+448(dst); \
-	MOVL R11, 0*4+off+512(dst);  \
-	MOVL R11, 6*4+off+576(dst);  \
-	SHRQ $32, R11;               \
-	MOVL R11, 7*4+off+0(dst);    \
-	MOVL R11, 14*4+off+64(dst);  \
-	MOVL R11, 10*4+off+128(dst); \
-	MOVL R11, 0*4+off+192(dst);  \
-	MOVL R11, 5*4+off+256(dst);  \
-	MOVL R11, 9*4+off+320(dst);  \
-	MOVL R11, 12*4+off+384(dst); \
-	MOVL R11, 1*4+off+448(dst);  \
-	MOVL R11, 13*4+off+512(dst); \
-	MOVL R11, 2*4+off+576(dst);  \
-	                             \
-	MOVL R12, 8*4+off+0(dst);    \
-	MOVL R12, 5*4+off+64(dst);   \
-	MOVL R12, 4*4+off+128(dst);  \
-	MOVL R12, 15*4+off+192(dst); \
-	MOVL R12, 14*4+off+256(dst); \
-	MOVL R12, 3*4+off+320(dst);  \
-	MOVL R12, 11*4+off+384(dst); \
-	MOVL R12, 10*4+off+448(dst); \
-	MOVL R12, 7*4+off+512(dst);  \
-	MOVL R12, 1*4+off+576(dst);  \
-	SHRQ $32, R12;               \
-	MOVL R12, 12*4+off+0(dst);   \
-	MOVL R12, 2*4+off+64(dst);   \
-	MOVL R12, 11*4+off+128(dst); \
-	MOVL R12, 4*4+off+192(dst);  \
-	MOVL R12, 0*4+off+256(dst);  \
-	MOVL R12, 15*4+off+320(dst); \
-	MOVL R12, 10*4+off+384(dst); \
-	MOVL R12, 7*4+off+448(dst);  \
-	MOVL R12, 5*4+off+512(dst);  \
-	MOVL R12, 9*4+off+576(dst);  \
-	                             \
-	MOVL R13, 9*4+off+0(dst);    \
-	MOVL R13, 4*4+off+64(dst);   \
-	MOVL R13, 8*4+off+128(dst);  \
-	MOVL R13, 13*4+off+192(dst); \
-	MOVL R13, 3*4+off+256(dst);  \
-	MOVL R13, 5*4+off+320(dst);  \
-	MOVL R13, 7*4+off+384(dst);  \
-	MOVL R13, 15*4+off+448(dst); \
-	MOVL R13, 11*4+off+512(dst); \
-	MOVL R13, 0*4+off+576(dst);  \
-	SHRQ $32, R13;               \
-	MOVL R13, 13*4+off+0(dst);   \
-	MOVL R13, 10*4+off+64(dst);  \
-	MOVL R13, 0*4+off+128(dst);  \
-	MOVL R13, 3*4+off+192(dst);  \
-	MOVL R13, 9*4+off+256(dst);  \
-	MOVL R13, 6*4+off+320(dst);  \
-	MOVL R13, 15*4+off+384(dst); \
-	MOVL R13, 4*4+off+448(dst);  \
-	MOVL R13, 2*4+off+512(dst);  \
-	MOVL R13, 12*4+off+576(dst); \
-	                             \
-	MOVL R14, 10*4+off+0(dst);   \
-	MOVL R14, 12*4+off+64(dst);  \
-	MOVL R14, 1*4+off+128(dst);  \
-	MOVL R14, 6*4+off+192(dst);  \
-	MOVL R14, 13*4+off+256(dst); \
-	MOVL R14, 4*4+off+320(dst);  \
-	MOVL R14, 0*4+off+384(dst);  \
-	MOVL R14, 2*4+off+448(dst);  \
-	MOVL R14, 8*4+off+512(dst);  \
-	MOVL R14, 14*4+off+576(dst); \
-	SHRQ $32, R14;               \
-	MOVL R14, 14*4+off+0(dst);   \
-	MOVL R14, 3*4+off+64(dst);   \
-	MOVL R14, 7*4+off+128(dst);  \
-	MOVL R14, 2*4+off+192(dst);  \
-	MOVL R14, 15*4+off+256(dst); \
-	MOVL R14, 12*4+off+320(dst); \
-	MOVL R14, 6*4+off+384(dst);  \
-	MOVL R14, 0*4+off+448(dst);  \
-	MOVL R14, 9*4+off+512(dst);  \
-	MOVL R14, 11*4+off+576(dst); \
-	                             \
-	MOVL R15, 11*4+off+0(dst);   \
-	MOVL R15, 0*4+off+64(dst);   \
-	MOVL R15, 12*4+off+128(dst); \
-	MOVL R15, 7*4+off+192(dst);  \
-	MOVL R15, 8*4+off+256(dst);  \
-	MOVL R15, 14*4+off+320(dst); \
-	MOVL R15, 2*4+off+384(dst);  \
-	MOVL R15, 5*4+off+448(dst);  \
-	MOVL R15, 1*4+off+512(dst);  \
-	MOVL R15, 13*4+off+576(dst); \
-	SHRQ $32, R15;               \
-	MOVL R15, 15*4+off+0(dst);   \
-	MOVL R15, 6*4+off+64(dst);   \
-	MOVL R15, 3*4+off+128(dst);  \
-	MOVL R15, 11*4+off+192(dst); \
-	MOVL R15, 7*4+off+256(dst);  \
-	MOVL R15, 10*4+off+320(dst); \
-	MOVL R15, 5*4+off+384(dst);  \
-	MOVL R15, 9*4+off+448(dst);  \
-	MOVL R15, 4*4+off+512(dst);  \
-	MOVL R15, 8*4+off+576(dst)
-
-#define BLAKE2s_SSE2() \
-	PRECOMPUTE_MSG(SP, 16, SI, R8, R9, R10, R11, R12, R13, R14, R15);               \
-	ROUND_SSE2(X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X8);                 \
-	ROUND_SSE2(X4, X5, X6, X7, 16+64(SP), 32+64(SP), 48+64(SP), 64+64(SP), X8);     \
-	ROUND_SSE2(X4, X5, X6, X7, 16+128(SP), 32+128(SP), 48+128(SP), 64+128(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+192(SP), 32+192(SP), 48+192(SP), 64+192(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+256(SP), 32+256(SP), 48+256(SP), 64+256(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+320(SP), 32+320(SP), 48+320(SP), 64+320(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+384(SP), 32+384(SP), 48+384(SP), 64+384(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+448(SP), 32+448(SP), 48+448(SP), 64+448(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+512(SP), 32+512(SP), 48+512(SP), 64+512(SP), X8); \
-	ROUND_SSE2(X4, X5, X6, X7, 16+576(SP), 32+576(SP), 48+576(SP), 64+576(SP), X8)
-
-#define BLAKE2s_SSSE3() \
-	PRECOMPUTE_MSG(SP, 16, SI, R8, R9, R10, R11, R12, R13, R14, R15);                          \
-	ROUND_SSSE3(X4, X5, X6, X7, 16(SP), 32(SP), 48(SP), 64(SP), X8, X13, X14);                 \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+64(SP), 32+64(SP), 48+64(SP), 64+64(SP), X8, X13, X14);     \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+128(SP), 32+128(SP), 48+128(SP), 64+128(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+192(SP), 32+192(SP), 48+192(SP), 64+192(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+256(SP), 32+256(SP), 48+256(SP), 64+256(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+320(SP), 32+320(SP), 48+320(SP), 64+320(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+384(SP), 32+384(SP), 48+384(SP), 64+384(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+448(SP), 32+448(SP), 48+448(SP), 64+448(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+512(SP), 32+512(SP), 48+512(SP), 64+512(SP), X8, X13, X14); \
-	ROUND_SSSE3(X4, X5, X6, X7, 16+576(SP), 32+576(SP), 48+576(SP), 64+576(SP), X8, X13, X14)
-
-#define BLAKE2s_SSE4() \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 14, 4, 9, 13, 10, 8, 15, 6, 1, 0, 11, 5, 12, 2, 7, 3); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 11, 12, 5, 15, 8, 0, 2, 13, 10, 3, 7, 9, 14, 6, 1, 4); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 7, 3, 13, 11, 9, 1, 12, 14, 2, 5, 4, 15, 6, 10, 0, 8); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 9, 5, 2, 10, 0, 7, 4, 15, 14, 11, 6, 3, 1, 12, 8, 13); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 2, 6, 0, 8, 12, 10, 11, 3, 4, 7, 15, 1, 13, 5, 14, 9); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 12, 1, 14, 4, 5, 15, 13, 10, 0, 6, 9, 8, 7, 3, 2, 11); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 13, 7, 12, 3, 11, 14, 1, 9, 5, 15, 8, 2, 0, 4, 6, 10); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 6, 14, 11, 0, 15, 9, 3, 8, 12, 13, 1, 10, 2, 7, 4, 5); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14);                               \
-	LOAD_MSG_SSE4(X8, X9, X10, X11, SI, 10, 8, 7, 1, 2, 4, 6, 5, 15, 9, 3, 13, 11, 14, 12, 0); \
-	ROUND_SSSE3(X4, X5, X6, X7, X8, X9, X10, X11, X8, X13, X14)
-
-#define HASH_BLOCKS(h, c, flag, blocks_base, blocks_len, BLAKE2s_FUNC) \
-	MOVQ  h, AX;                   \
-	MOVQ  c, BX;                   \
-	MOVL  flag, CX;                \
-	MOVQ  blocks_base, SI;         \
-	MOVQ  blocks_len, DX;          \
-	                               \
-	MOVQ  SP, BP;                  \
-	MOVQ  SP, R9;                  \
-	ADDQ  $15, R9;                 \
-	ANDQ  $~15, R9;                \
-	MOVQ  R9, SP;                  \
-	                               \
-	MOVQ  0(BX), R9;               \
-	MOVQ  R9, 0(SP);               \
-	XORQ  R9, R9;                  \
-	MOVQ  R9, 8(SP);               \
-	MOVL  CX, 8(SP);               \
-	                               \
-	MOVOU 0(AX), X0;               \
-	MOVOU 16(AX), X1;              \
-	MOVOU iv0<>(SB), X2;           \
-	MOVOU iv1<>(SB), X3            \
-	                               \
-	MOVOU counter<>(SB), X12;      \
-	MOVOU rol16<>(SB), X13;        \
-	MOVOU rol8<>(SB), X14;         \
-	MOVO  0(SP), X15;              \
-	                               \
-	loop:                          \
-	MOVO  X0, X4;                  \
-	MOVO  X1, X5;                  \
-	MOVO  X2, X6;                  \
-	MOVO  X3, X7;                  \
-	                               \
-	PADDQ X12, X15;                \
-	PXOR  X15, X7;                 \
-	                               \
-	BLAKE2s_FUNC();                \
-	                               \
-	PXOR  X4, X0;                  \
-	PXOR  X5, X1;                  \
-	PXOR  X6, X0;                  \
-	PXOR  X7, X1;                  \
-	                               \
-	LEAQ  64(SI), SI;              \
-	SUBQ  $64, DX;                 \
-	JNE   loop;                    \
-	                               \
-	MOVO  X15, 0(SP);              \
-	MOVQ  0(SP), R9;               \
-	MOVQ  R9, 0(BX);               \
-	                               \
-	MOVOU X0, 0(AX);               \
-	MOVOU X1, 16(AX);              \
-	                               \
-	MOVQ  BP, SP
-
-// func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-TEXT ·hashBlocksSSE2(SB), 0, $672-48 // frame = 656 + 16 byte alignment
-	HASH_BLOCKS(h+0(FP), c+8(FP), flag+16(FP), blocks_base+24(FP), blocks_len+32(FP), BLAKE2s_SSE2)
-	RET
-
-// func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-TEXT ·hashBlocksSSSE3(SB), 0, $672-48 // frame = 656 + 16 byte alignment
-	HASH_BLOCKS(h+0(FP), c+8(FP), flag+16(FP), blocks_base+24(FP), blocks_len+32(FP), BLAKE2s_SSSE3)
-	RET
-
-// func hashBlocksSSE4(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
-TEXT ·hashBlocksSSE4(SB), 0, $32-48 // frame = 16 + 16 byte alignment
-	HASH_BLOCKS(h+0(FP), c+8(FP), flag+16(FP), blocks_base+24(FP), blocks_len+32(FP), BLAKE2s_SSE4)
-	RET
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_generic.go b/vendor/golang.org/x/crypto/blake2s/blake2s_generic.go
deleted file mode 100644
index f7e0653..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_generic.go
+++ /dev/null
@@ -1,174 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2s
-
-// the precomputed values for BLAKE2s
-// there are 10 16-byte arrays - one for each round
-// the entries are calculated from the sigma constants.
-var precomputed = [10][16]byte{
-	{0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15},
-	{14, 4, 9, 13, 10, 8, 15, 6, 1, 0, 11, 5, 12, 2, 7, 3},
-	{11, 12, 5, 15, 8, 0, 2, 13, 10, 3, 7, 9, 14, 6, 1, 4},
-	{7, 3, 13, 11, 9, 1, 12, 14, 2, 5, 4, 15, 6, 10, 0, 8},
-	{9, 5, 2, 10, 0, 7, 4, 15, 14, 11, 6, 3, 1, 12, 8, 13},
-	{2, 6, 0, 8, 12, 10, 11, 3, 4, 7, 15, 1, 13, 5, 14, 9},
-	{12, 1, 14, 4, 5, 15, 13, 10, 0, 6, 9, 8, 7, 3, 2, 11},
-	{13, 7, 12, 3, 11, 14, 1, 9, 5, 15, 8, 2, 0, 4, 6, 10},
-	{6, 14, 11, 0, 15, 9, 3, 8, 12, 13, 1, 10, 2, 7, 4, 5},
-	{10, 8, 7, 1, 2, 4, 6, 5, 15, 9, 3, 13, 11, 14, 12, 0},
-}
-
-func hashBlocksGeneric(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
-	var m [16]uint32
-	c0, c1 := c[0], c[1]
-
-	for i := 0; i < len(blocks); {
-		c0 += BlockSize
-		if c0 < BlockSize {
-			c1++
-		}
-
-		v0, v1, v2, v3, v4, v5, v6, v7 := h[0], h[1], h[2], h[3], h[4], h[5], h[6], h[7]
-		v8, v9, v10, v11, v12, v13, v14, v15 := iv[0], iv[1], iv[2], iv[3], iv[4], iv[5], iv[6], iv[7]
-		v12 ^= c0
-		v13 ^= c1
-		v14 ^= flag
-
-		for j := range m {
-			m[j] = uint32(blocks[i]) | uint32(blocks[i+1])<<8 | uint32(blocks[i+2])<<16 | uint32(blocks[i+3])<<24
-			i += 4
-		}
-
-		for k := range precomputed {
-			s := &(precomputed[k])
-
-			v0 += m[s[0]]
-			v0 += v4
-			v12 ^= v0
-			v12 = v12<<(32-16) | v12>>16
-			v8 += v12
-			v4 ^= v8
-			v4 = v4<<(32-12) | v4>>12
-			v1 += m[s[1]]
-			v1 += v5
-			v13 ^= v1
-			v13 = v13<<(32-16) | v13>>16
-			v9 += v13
-			v5 ^= v9
-			v5 = v5<<(32-12) | v5>>12
-			v2 += m[s[2]]
-			v2 += v6
-			v14 ^= v2
-			v14 = v14<<(32-16) | v14>>16
-			v10 += v14
-			v6 ^= v10
-			v6 = v6<<(32-12) | v6>>12
-			v3 += m[s[3]]
-			v3 += v7
-			v15 ^= v3
-			v15 = v15<<(32-16) | v15>>16
-			v11 += v15
-			v7 ^= v11
-			v7 = v7<<(32-12) | v7>>12
-
-			v0 += m[s[4]]
-			v0 += v4
-			v12 ^= v0
-			v12 = v12<<(32-8) | v12>>8
-			v8 += v12
-			v4 ^= v8
-			v4 = v4<<(32-7) | v4>>7
-			v1 += m[s[5]]
-			v1 += v5
-			v13 ^= v1
-			v13 = v13<<(32-8) | v13>>8
-			v9 += v13
-			v5 ^= v9
-			v5 = v5<<(32-7) | v5>>7
-			v2 += m[s[6]]
-			v2 += v6
-			v14 ^= v2
-			v14 = v14<<(32-8) | v14>>8
-			v10 += v14
-			v6 ^= v10
-			v6 = v6<<(32-7) | v6>>7
-			v3 += m[s[7]]
-			v3 += v7
-			v15 ^= v3
-			v15 = v15<<(32-8) | v15>>8
-			v11 += v15
-			v7 ^= v11
-			v7 = v7<<(32-7) | v7>>7
-
-			v0 += m[s[8]]
-			v0 += v5
-			v15 ^= v0
-			v15 = v15<<(32-16) | v15>>16
-			v10 += v15
-			v5 ^= v10
-			v5 = v5<<(32-12) | v5>>12
-			v1 += m[s[9]]
-			v1 += v6
-			v12 ^= v1
-			v12 = v12<<(32-16) | v12>>16
-			v11 += v12
-			v6 ^= v11
-			v6 = v6<<(32-12) | v6>>12
-			v2 += m[s[10]]
-			v2 += v7
-			v13 ^= v2
-			v13 = v13<<(32-16) | v13>>16
-			v8 += v13
-			v7 ^= v8
-			v7 = v7<<(32-12) | v7>>12
-			v3 += m[s[11]]
-			v3 += v4
-			v14 ^= v3
-			v14 = v14<<(32-16) | v14>>16
-			v9 += v14
-			v4 ^= v9
-			v4 = v4<<(32-12) | v4>>12
-
-			v0 += m[s[12]]
-			v0 += v5
-			v15 ^= v0
-			v15 = v15<<(32-8) | v15>>8
-			v10 += v15
-			v5 ^= v10
-			v5 = v5<<(32-7) | v5>>7
-			v1 += m[s[13]]
-			v1 += v6
-			v12 ^= v1
-			v12 = v12<<(32-8) | v12>>8
-			v11 += v12
-			v6 ^= v11
-			v6 = v6<<(32-7) | v6>>7
-			v2 += m[s[14]]
-			v2 += v7
-			v13 ^= v2
-			v13 = v13<<(32-8) | v13>>8
-			v8 += v13
-			v7 ^= v8
-			v7 = v7<<(32-7) | v7>>7
-			v3 += m[s[15]]
-			v3 += v4
-			v14 ^= v3
-			v14 = v14<<(32-8) | v14>>8
-			v9 += v14
-			v4 ^= v9
-			v4 = v4<<(32-7) | v4>>7
-		}
-
-		h[0] ^= v0 ^ v8
-		h[1] ^= v1 ^ v9
-		h[2] ^= v2 ^ v10
-		h[3] ^= v3 ^ v11
-		h[4] ^= v4 ^ v12
-		h[5] ^= v5 ^ v13
-		h[6] ^= v6 ^ v14
-		h[7] ^= v7 ^ v15
-	}
-	c[0], c[1] = c0, c1
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_ref.go b/vendor/golang.org/x/crypto/blake2s/blake2s_ref.go
deleted file mode 100644
index a311273..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_ref.go
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64,!386 gccgo appengine
-
-package blake2s
-
-var (
-	useSSE4  = false
-	useSSSE3 = false
-	useSSE2  = false
-)
-
-func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
-	hashBlocksGeneric(h, c, flag, blocks)
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2s_test.go b/vendor/golang.org/x/crypto/blake2s/blake2s_test.go
deleted file mode 100644
index cde79fb..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2s_test.go
+++ /dev/null
@@ -1,1050 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2s
-
-import (
-	"bytes"
-	"encoding"
-	"encoding/hex"
-	"fmt"
-	"testing"
-)
-
-func TestHashes(t *testing.T) {
-	defer func(sse2, ssse3, sse4 bool) {
-		useSSE2, useSSSE3, useSSE4 = sse2, ssse3, sse4
-	}(useSSE2, useSSSE3, useSSE4)
-
-	if useSSE4 {
-		t.Log("SSE4 version")
-		testHashes(t)
-		testHashes128(t)
-		useSSE4 = false
-	}
-	if useSSSE3 {
-		t.Log("SSSE3 version")
-		testHashes(t)
-		testHashes128(t)
-		useSSSE3 = false
-	}
-	if useSSE2 {
-		t.Log("SSE2 version")
-		testHashes(t)
-		testHashes128(t)
-		useSSE2 = false
-	}
-
-	t.Log("generic version")
-	testHashes(t)
-	testHashes128(t)
-}
-
-func TestHashes2X(t *testing.T) {
-	defer func(sse2, ssse3, sse4 bool) {
-		useSSE2, useSSSE3, useSSE4 = sse2, ssse3, sse4
-	}(useSSE2, useSSSE3, useSSE4)
-
-	if useSSE4 {
-		t.Log("SSE4 version")
-		testHashes2X(t)
-		useSSE4 = false
-	}
-	if useSSSE3 {
-		t.Log("SSSE3 version")
-		testHashes2X(t)
-		useSSSE3 = false
-	}
-	if useSSE2 {
-		t.Log("SSE2 version")
-		testHashes2X(t)
-		useSSE2 = false
-	}
-
-	t.Log("generic version")
-	testHashes2X(t)
-}
-
-func TestMarshal(t *testing.T) {
-	input := make([]byte, 255)
-	for i := range input {
-		input[i] = byte(i)
-	}
-	for i := 0; i < 256; i++ {
-		h, err := New256(nil)
-		if err != nil {
-			t.Fatalf("len(input)=%d: error from New256(nil): %v", i, err)
-		}
-		h2, err := New256(nil)
-		if err != nil {
-			t.Fatalf("len(input)=%d: error from New256(nil): %v", i, err)
-		}
-
-		h.Write(input[:i/2])
-		halfstate, err := h.(encoding.BinaryMarshaler).MarshalBinary()
-		if err != nil {
-			t.Fatalf("len(input)=%d: could not marshal: %v", i, err)
-		}
-		err = h2.(encoding.BinaryUnmarshaler).UnmarshalBinary(halfstate)
-		if err != nil {
-			t.Fatalf("len(input)=%d: could not unmarshal: %v", i, err)
-		}
-
-		h.Write(input[i/2 : i])
-		sum := h.Sum(nil)
-		h2.Write(input[i/2 : i])
-		sum2 := h2.Sum(nil)
-
-		if !bytes.Equal(sum, sum2) {
-			t.Fatalf("len(input)=%d: results do not match; sum = %v, sum2 = %v", i, sum, sum2)
-		}
-
-		h3, err := New256(nil)
-		if err != nil {
-			t.Fatalf("len(input)=%d: error from New256(nil): %v", i, err)
-		}
-		h3.Write(input[:i])
-		sum3 := h3.Sum(nil)
-		if !bytes.Equal(sum, sum3) {
-			t.Fatalf("len(input)=%d: sum = %v, want %v", i, sum, sum3)
-		}
-	}
-}
-
-func testHashes(t *testing.T) {
-	key, _ := hex.DecodeString("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f")
-
-	input := make([]byte, 255)
-	for i := range input {
-		input[i] = byte(i)
-	}
-
-	for i, expectedHex := range hashes {
-		h, err := New256(key)
-		if err != nil {
-			t.Fatalf("#%d: error from New256: %v", i, err)
-		}
-
-		h.Write(input[:i])
-		sum := h.Sum(nil)
-
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (single write): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-
-		h.Reset()
-		for j := 0; j < i; j++ {
-			h.Write(input[j : j+1])
-		}
-
-		sum = h.Sum(sum[:0])
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (byte-by-byte): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-	}
-}
-
-func testHashes128(t *testing.T) {
-	key, _ := hex.DecodeString("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f")
-
-	input := make([]byte, 255)
-	for i := range input {
-		input[i] = byte(i)
-	}
-
-	for i, expectedHex := range hashes128 {
-		h, err := New128(key)
-		if err != nil {
-			t.Fatalf("#%d: error from New128: %v", i, err)
-		}
-
-		h.Write(input[:i])
-		sum := h.Sum(nil)
-
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (single write): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-
-		h.Reset()
-		for j := 0; j < i; j++ {
-			h.Write(input[j : j+1])
-		}
-
-		sum = h.Sum(sum[:0])
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (byte-by-byte): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-	}
-}
-
-func testHashes2X(t *testing.T) {
-	key, _ := hex.DecodeString("000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f")
-
-	input := make([]byte, 256)
-	for i := range input {
-		input[i] = byte(i)
-	}
-
-	for i, expectedHex := range hashes2X {
-		length := uint16(len(expectedHex) / 2)
-		sum := make([]byte, int(length))
-
-		h, err := NewXOF(length, key)
-		if err != nil {
-			t.Fatalf("#%d: error from NewXOF: %v", i, err)
-		}
-
-		if _, err := h.Write(input); err != nil {
-			t.Fatalf("#%d (single write): error from Write: %v", i, err)
-		}
-		if _, err := h.Read(sum); err != nil {
-			t.Fatalf("#%d (single write): error from Read: %v", i, err)
-		}
-
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (single write): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-
-		h.Reset()
-		for j := 0; j < len(input); j++ {
-			h.Write(input[j : j+1])
-		}
-		for j := 0; j < len(sum); j++ {
-			h = h.Clone()
-			if _, err := h.Read(sum[j : j+1]); err != nil {
-				t.Fatalf("#%d (byte-by-byte) - Read %d: error from Read: %v", i, j, err)
-			}
-		}
-		if gotHex := fmt.Sprintf("%x", sum); gotHex != expectedHex {
-			t.Fatalf("#%d (byte-by-byte): got %s, wanted %s", i, gotHex, expectedHex)
-		}
-	}
-
-	h, err := NewXOF(OutputLengthUnknown, key)
-	if err != nil {
-		t.Fatalf("#unknown length: error from NewXOF: %v", err)
-	}
-	if _, err := h.Write(input); err != nil {
-		t.Fatalf("#unknown length: error from Write: %v", err)
-	}
-
-	var result [64]byte
-	if n, err := h.Read(result[:]); err != nil {
-		t.Fatalf("#unknown length: error from Read: %v", err)
-	} else if n != len(result) {
-		t.Fatalf("#unknown length: Read returned %d bytes, want %d", n, len(result))
-	}
-
-	const expected = "2a9a6977d915a2c4dd07dbcafe1918bf1682e56d9c8e567ecd19bfd7cd93528833c764d12b34a5e2a219c9fd463dab45e972c5574d73f45de5b2e23af72530d8"
-	if fmt.Sprintf("%x", result) != expected {
-		t.Fatalf("#unknown length: bad result %x, wanted %s", result, expected)
-	}
-}
-
-// Benchmarks
-
-func benchmarkSum(b *testing.B, size int) {
-	data := make([]byte, size)
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Sum256(data)
-	}
-}
-
-func benchmarkWrite(b *testing.B, size int) {
-	data := make([]byte, size)
-	h, _ := New256(nil)
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		h.Write(data)
-	}
-}
-
-func BenchmarkWrite64(b *testing.B) { benchmarkWrite(b, 64) }
-func BenchmarkWrite1K(b *testing.B) { benchmarkWrite(b, 1024) }
-
-func BenchmarkSum64(b *testing.B) { benchmarkSum(b, 64) }
-func BenchmarkSum1K(b *testing.B) { benchmarkSum(b, 1024) }
-
-// hashes is taken from https://blake2.net/blake2s-test.txt
-var hashes = []string{
-	"48a8997da407876b3d79c0d92325ad3b89cbb754d86ab71aee047ad345fd2c49",
-	"40d15fee7c328830166ac3f918650f807e7e01e177258cdc0a39b11f598066f1",
-	"6bb71300644cd3991b26ccd4d274acd1adeab8b1d7914546c1198bbe9fc9d803",
-	"1d220dbe2ee134661fdf6d9e74b41704710556f2f6e5a091b227697445dbea6b",
-	"f6c3fbadb4cc687a0064a5be6e791bec63b868ad62fba61b3757ef9ca52e05b2",
-	"49c1f21188dfd769aea0e911dd6b41f14dab109d2b85977aa3088b5c707e8598",
-	"fdd8993dcd43f696d44f3cea0ff35345234ec8ee083eb3cada017c7f78c17143",
-	"e6c8125637438d0905b749f46560ac89fd471cf8692e28fab982f73f019b83a9",
-	"19fc8ca6979d60e6edd3b4541e2f967ced740df6ec1eaebbfe813832e96b2974",
-	"a6ad777ce881b52bb5a4421ab6cdd2dfba13e963652d4d6d122aee46548c14a7",
-	"f5c4b2ba1a00781b13aba0425242c69cb1552f3f71a9a3bb22b4a6b4277b46dd",
-	"e33c4c9bd0cc7e45c80e65c77fa5997fec7002738541509e68a9423891e822a3",
-	"fba16169b2c3ee105be6e1e650e5cbf40746b6753d036ab55179014ad7ef6651",
-	"f5c4bec6d62fc608bf41cc115f16d61c7efd3ff6c65692bbe0afffb1fede7475",
-	"a4862e76db847f05ba17ede5da4e7f91b5925cf1ad4ba12732c3995742a5cd6e",
-	"65f4b860cd15b38ef814a1a804314a55be953caa65fd758ad989ff34a41c1eea",
-	"19ba234f0a4f38637d1839f9d9f76ad91c8522307143c97d5f93f69274cec9a7",
-	"1a67186ca4a5cb8e65fca0e2ecbc5ddc14ae381bb8bffeb9e0a103449e3ef03c",
-	"afbea317b5a2e89c0bd90ccf5d7fd0ed57fe585e4be3271b0a6bf0f5786b0f26",
-	"f1b01558ce541262f5ec34299d6fb4090009e3434be2f49105cf46af4d2d4124",
-	"13a0a0c86335635eaa74ca2d5d488c797bbb4f47dc07105015ed6a1f3309efce",
-	"1580afeebebb346f94d59fe62da0b79237ead7b1491f5667a90e45edf6ca8b03",
-	"20be1a875b38c573dd7faaa0de489d655c11efb6a552698e07a2d331b5f655c3",
-	"be1fe3c4c04018c54c4a0f6b9a2ed3c53abe3a9f76b4d26de56fc9ae95059a99",
-	"e3e3ace537eb3edd8463d9ad3582e13cf86533ffde43d668dd2e93bbdbd7195a",
-	"110c50c0bf2c6e7aeb7e435d92d132ab6655168e78a2decdec3330777684d9c1",
-	"e9ba8f505c9c80c08666a701f3367e6cc665f34b22e73c3c0417eb1c2206082f",
-	"26cd66fca02379c76df12317052bcafd6cd8c3a7b890d805f36c49989782433a",
-	"213f3596d6e3a5d0e9932cd2159146015e2abc949f4729ee2632fe1edb78d337",
-	"1015d70108e03be1c702fe97253607d14aee591f2413ea6787427b6459ff219a",
-	"3ca989de10cfe609909472c8d35610805b2f977734cf652cc64b3bfc882d5d89",
-	"b6156f72d380ee9ea6acd190464f2307a5c179ef01fd71f99f2d0f7a57360aea",
-	"c03bc642b20959cbe133a0303e0c1abff3e31ec8e1a328ec8565c36decff5265",
-	"2c3e08176f760c6264c3a2cd66fec6c3d78de43fc192457b2a4a660a1e0eb22b",
-	"f738c02f3c1b190c512b1a32deabf353728e0e9ab034490e3c3409946a97aeec",
-	"8b1880df301cc963418811088964839287ff7fe31c49ea6ebd9e48bdeee497c5",
-	"1e75cb21c60989020375f1a7a242839f0b0b68973a4c2a05cf7555ed5aaec4c1",
-	"62bf8a9c32a5bccf290b6c474d75b2a2a4093f1a9e27139433a8f2b3bce7b8d7",
-	"166c8350d3173b5e702b783dfd33c66ee0432742e9b92b997fd23c60dc6756ca",
-	"044a14d822a90cacf2f5a101428adc8f4109386ccb158bf905c8618b8ee24ec3",
-	"387d397ea43a994be84d2d544afbe481a2000f55252696bba2c50c8ebd101347",
-	"56f8ccf1f86409b46ce36166ae9165138441577589db08cbc5f66ca29743b9fd",
-	"9706c092b04d91f53dff91fa37b7493d28b576b5d710469df79401662236fc03",
-	"877968686c068ce2f7e2adcff68bf8748edf3cf862cfb4d3947a3106958054e3",
-	"8817e5719879acf7024787eccdb271035566cfa333e049407c0178ccc57a5b9f",
-	"8938249e4b50cadaccdf5b18621326cbb15253e33a20f5636e995d72478de472",
-	"f164abba4963a44d107257e3232d90aca5e66a1408248c51741e991db5227756",
-	"d05563e2b1cba0c4a2a1e8bde3a1a0d9f5b40c85a070d6f5fb21066ead5d0601",
-	"03fbb16384f0a3866f4c3117877666efbf124597564b293d4aab0d269fabddfa",
-	"5fa8486ac0e52964d1881bbe338eb54be2f719549224892057b4da04ba8b3475",
-	"cdfabcee46911111236a31708b2539d71fc211d9b09c0d8530a11e1dbf6eed01",
-	"4f82de03b9504793b82a07a0bdcdff314d759e7b62d26b784946b0d36f916f52",
-	"259ec7f173bcc76a0994c967b4f5f024c56057fb79c965c4fae41875f06a0e4c",
-	"193cc8e7c3e08bb30f5437aa27ade1f142369b246a675b2383e6da9b49a9809e",
-	"5c10896f0e2856b2a2eee0fe4a2c1633565d18f0e93e1fab26c373e8f829654d",
-	"f16012d93f28851a1eb989f5d0b43f3f39ca73c9a62d5181bff237536bd348c3",
-	"2966b3cfae1e44ea996dc5d686cf25fa053fb6f67201b9e46eade85d0ad6b806",
-	"ddb8782485e900bc60bcf4c33a6fd585680cc683d516efa03eb9985fad8715fb",
-	"4c4d6e71aea05786413148fc7a786b0ecaf582cff1209f5a809fba8504ce662c",
-	"fb4c5e86d7b2229b99b8ba6d94c247ef964aa3a2bae8edc77569f28dbbff2d4e",
-	"e94f526de9019633ecd54ac6120f23958d7718f1e7717bf329211a4faeed4e6d",
-	"cbd6660a10db3f23f7a03d4b9d4044c7932b2801ac89d60bc9eb92d65a46c2a0",
-	"8818bbd3db4dc123b25cbba5f54c2bc4b3fcf9bf7d7a7709f4ae588b267c4ece",
-	"c65382513f07460da39833cb666c5ed82e61b9e998f4b0c4287cee56c3cc9bcd",
-	"8975b0577fd35566d750b362b0897a26c399136df07bababbde6203ff2954ed4",
-	"21fe0ceb0052be7fb0f004187cacd7de67fa6eb0938d927677f2398c132317a8",
-	"2ef73f3c26f12d93889f3c78b6a66c1d52b649dc9e856e2c172ea7c58ac2b5e3",
-	"388a3cd56d73867abb5f8401492b6e2681eb69851e767fd84210a56076fb3dd3",
-	"af533e022fc9439e4e3cb838ecd18692232adf6fe9839526d3c3dd1b71910b1a",
-	"751c09d41a9343882a81cd13ee40818d12eb44c6c7f40df16e4aea8fab91972a",
-	"5b73ddb68d9d2b0aa265a07988d6b88ae9aac582af83032f8a9b21a2e1b7bf18",
-	"3da29126c7c5d7f43e64242a79feaa4ef3459cdeccc898ed59a97f6ec93b9dab",
-	"566dc920293da5cb4fe0aa8abda8bbf56f552313bff19046641e3615c1e3ed3f",
-	"4115bea02f73f97f629e5c5590720c01e7e449ae2a6697d4d2783321303692f9",
-	"4ce08f4762468a7670012164878d68340c52a35e66c1884d5c864889abc96677",
-	"81ea0b7804124e0c22ea5fc71104a2afcb52a1fa816f3ecb7dcb5d9dea1786d0",
-	"fe362733b05f6bedaf9379d7f7936ede209b1f8323c3922549d9e73681b5db7b",
-	"eff37d30dfd20359be4e73fdf40d27734b3df90a97a55ed745297294ca85d09f",
-	"172ffc67153d12e0ca76a8b6cd5d4731885b39ce0cac93a8972a18006c8b8baf",
-	"c47957f1cc88e83ef9445839709a480a036bed5f88ac0fcc8e1e703ffaac132c",
-	"30f3548370cfdceda5c37b569b6175e799eef1a62aaa943245ae7669c227a7b5",
-	"c95dcb3cf1f27d0eef2f25d2413870904a877c4a56c2de1e83e2bc2ae2e46821",
-	"d5d0b5d705434cd46b185749f66bfb5836dcdf6ee549a2b7a4aee7f58007caaf",
-	"bbc124a712f15d07c300e05b668389a439c91777f721f8320c1c9078066d2c7e",
-	"a451b48c35a6c7854cfaae60262e76990816382ac0667e5a5c9e1b46c4342ddf",
-	"b0d150fb55e778d01147f0b5d89d99ecb20ff07e5e6760d6b645eb5b654c622b",
-	"34f737c0ab219951eee89a9f8dac299c9d4c38f33fa494c5c6eefc92b6db08bc",
-	"1a62cc3a00800dcbd99891080c1e098458193a8cc9f970ea99fbeff00318c289",
-	"cfce55ebafc840d7ae48281c7fd57ec8b482d4b704437495495ac414cf4a374b",
-	"6746facf71146d999dabd05d093ae586648d1ee28e72617b99d0f0086e1e45bf",
-	"571ced283b3f23b4e750bf12a2caf1781847bd890e43603cdc5976102b7bb11b",
-	"cfcb765b048e35022c5d089d26e85a36b005a2b80493d03a144e09f409b6afd1",
-	"4050c7a27705bb27f42089b299f3cbe5054ead68727e8ef9318ce6f25cd6f31d",
-	"184070bd5d265fbdc142cd1c5cd0d7e414e70369a266d627c8fba84fa5e84c34",
-	"9edda9a4443902a9588c0d0ccc62b930218479a6841e6fe7d43003f04b1fd643",
-	"e412feef7908324a6da1841629f35d3d358642019310ec57c614836b63d30763",
-	"1a2b8edff3f9acc1554fcbae3cf1d6298c6462e22e5eb0259684f835012bd13f",
-	"288c4ad9b9409762ea07c24a41f04f69a7d74bee2d95435374bde946d7241c7b",
-	"805691bb286748cfb591d3aebe7e6f4e4dc6e2808c65143cc004e4eb6fd09d43",
-	"d4ac8d3a0afc6cfa7b460ae3001baeb36dadb37da07d2e8ac91822df348aed3d",
-	"c376617014d20158bced3d3ba552b6eccf84e62aa3eb650e90029c84d13eea69",
-	"c41f09f43cecae7293d6007ca0a357087d5ae59be500c1cd5b289ee810c7b082",
-	"03d1ced1fba5c39155c44b7765cb760c78708dcfc80b0bd8ade3a56da8830b29",
-	"09bde6f152218dc92c41d7f45387e63e5869d807ec70b821405dbd884b7fcf4b",
-	"71c9036e18179b90b37d39e9f05eb89cc5fc341fd7c477d0d7493285faca08a4",
-	"5916833ebb05cd919ca7fe83b692d3205bef72392b2cf6bb0a6d43f994f95f11",
-	"f63aab3ec641b3b024964c2b437c04f6043c4c7e0279239995401958f86bbe54",
-	"f172b180bfb09740493120b6326cbdc561e477def9bbcfd28cc8c1c5e3379a31",
-	"cb9b89cc18381dd9141ade588654d4e6a231d5bf49d4d59ac27d869cbe100cf3",
-	"7bd8815046fdd810a923e1984aaebdcdf84d87c8992d68b5eeb460f93eb3c8d7",
-	"607be66862fd08ee5b19facac09dfdbcd40c312101d66e6ebd2b841f1b9a9325",
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-	"8850d16d7b614d3268ccfa009d33c7fc",
-	"aa98a2b6176ea86415b9aff3268c6f6d",
-	"ec3e1efa5ed195eff667e16b1af1e39e",
-	"e40787dca57411d2630db2de699beb08",
-	"554835890735babd06318de23d31e78a",
-	"493957feecddc302ee2bb2086b6ebfd3",
-	"f6069709ad5b0139163717e9ce1114ab",
-	"ba5ed386098da284484b211555505a01",
-	"9244c8dfad8cbb68c118fa51465b3ae4",
-	"51e309a5008eb1f5185e5cc007cfb36f",
-	"6ce9ff712121b4f6087955f4911eafd4",
-	"59b51d8dcda031218ccdd7c760828155",
-	"0012878767a3d4f1c8194458cf1f8832",
-	"82900708afd5b6582dc16f008c655edd",
-	"21302c7e39b5a4cdf1d6f86b4f00c9b4",
-	"e894c7431591eab8d1ce0fe2aa1f01df",
-	"b67e1c40ee9d988226d605621854d955",
-	"6237bdafa34137cbbec6be43ea9bd22c",
-	"4172a8e19b0dcb09b978bb9eff7af52b",
-	"5714abb55bd4448a5a6ad09fbd872fdf",
-	"7ce1700bef423e1f958a94a77a94d44a",
-	"3742ec50cded528527775833453e0b26",
-	"5d41b135724c7c9c689495324b162f18",
-	"85c523333c6442c202e9e6e0f1185f93",
-	"5c71f5222d40ff5d90e7570e71ab2d30",
-	"6e18912e83d012efb4c66250ced6f0d9",
-	"4add4448c2e35e0b138a0bac7b4b1775",
-	"c0376c6bc5e7b8b9d2108ec25d2aab53",
-	"f72261d5ed156765c977751c8a13fcc1",
-	"cff4156c48614b6ceed3dd6b9058f17e",
-	"36bfb513f76c15f514bcb593419835aa",
-	"166bf48c6bffaf8291e6fdf63854bef4",
-	"0b67d33f8b859c3157fbabd9e6e47ed0",
-	"e4da659ca76c88e73a9f9f10f3d51789",
-	"33c1ae2a86b3f51c0642e6ed5b5aa1f1",
-	"27469b56aca2334449c1cf4970dcd969",
-	"b7117b2e363378aa0901b0d6a9f6ddc0",
-	"a9578233b09e5cd5231943fdb12cd90d",
-	"486d7d75253598b716a068243c1c3e89",
-	"66f6b02d682b78ffdc85e9ec86852489",
-	"38a07b9a4b228fbcc305476e4d2e05d2",
-	"aedb61c7970e7d05bf9002dae3c6858c",
-	"c03ef441f7dd30fdb61ad2d4d8e4c7da",
-	"7f45cc1eea9a00cb6aeb2dd748361190",
-	"a59538b358459132e55160899e47bd65",
-	"137010fef72364411820c3fbed15c8df",
-	"d8362b93fc504500dbd33ac74e1b4d70",
-	"a7e49f12c8f47e3b29cf8c0889b0a9c8",
-	"072e94ffbfc684bd8ab2a1b9dade2fd5",
-	"5ab438584bd2229e452052e002631a5f",
-	"f233d14221097baef57d3ec205c9e086",
-	"3a95db000c4a8ff98dc5c89631a7f162",
-	"0544f18c2994ab4ddf1728f66041ff16",
-	"0bc02116c60a3cc331928d6c9d3ba37e",
-	"b189dca6cb5b813c74200834fba97f29",
-	"ac8aaab075b4a5bc24419da239212650",
-	"1e9f19323dc71c29ae99c479dc7e8df9",
-	"12d944c3fa7caa1b3d62adfc492274dd",
-	"b4c68f1fffe8f0030e9b18aad8c9dc96",
-	"25887fab1422700d7fa3edc0b20206e2",
-	"8c09f698d03eaf88abf69f8147865ef6",
-	"5c363ae42a5bec26fbc5e996428d9bd7",
-	"7fdfc2e854fbb3928150d5e3abcf56d6",
-	"f0c944023f714df115f9e4f25bcdb89b",
-	"6d19534b4c332741c8ddd79a9644de2d",
-	"32595eb23764fbfc2ee7822649f74a12",
-	"5a51391aab33c8d575019b6e76ae052a",
-	"98b861ce2c620f10f913af5d704a5afd",
-	"b7fe2fc8b77fb1ce434f8465c7ddf793",
-	"0e8406e0cf8e9cc840668ece2a0fc64e",
-	"b89922db99c58f6a128ccffe19b6ce60",
-	"e1be9af665f0932b77d7f5631a511db7",
-	"74b96f20f58de8dc9ff5e31f91828523",
-	"36a4cfef5a2a7d8548db6710e50b3009",
-	"007e95e8d3b91948a1dedb91f75de76b",
-	"a87a702ce08f5745edf765bfcd5fbe0d",
-	"847e69a388a749a9c507354d0dddfe09",
-	"07176eefbc107a78f058f3d424ca6a54",
-	"ad7e80682333b68296f6cb2b4a8e446d",
-	"53c4aba43896ae422e5de5b9edbd46bf",
-	"33bd6c20ca2a7ab916d6e98003c6c5f8",
-	"060d088ea94aa093f9981a79df1dfcc8",
-	"5617b214b9df08d4f11e58f5e76d9a56",
-	"ca3a60ee85bd971e1daf9f7db059d909",
-	"cd2b7754505d8c884eddf736f1ec613e",
-	"f496163b252f1439e7e113ba2ecabd8e",
-	"5719c7dcf9d9f756d6213354acb7d5cf",
-	"6f7dd40b245c54411e7a9be83ae5701c",
-	"c8994dd9fdeb077a45ea04a30358b637",
-	"4b1184f1e35458c1c747817d527a252f",
-	"fc7df674afeac7a3fd994183f4c67a74",
-	"4f68e05ce4dcc533acf9c7c01d95711e",
-	"d4ebc59e918400720035dfc88e0c486a",
-	"d3105dd6fa123e543b0b3a6e0eeaea9e",
-	"874196128ed443f5bdb2800ca048fcad",
-	"01645f134978dc8f9cf0abc93b53780e",
-	"5b8b64caa257873a0ffd47c981ef6c3f",
-	"4ee208fc50ba0a6e65c5b58cec44c923",
-	"53f409a52427b3b7ffabb057ca088428",
-	"c1d6cd616f5341a93d921e356e5887a9",
-	"e85c20fea67fa7320dc23379181183c8",
-	"7912b6409489df001b7372bc94aebde7",
-	"e559f761ec866a87f1f331767fafc60f",
-	"20a6f5a36bc37043d977ed7708465ef8",
-	"6a72f526965ab120826640dd784c6cc4",
-	"bf486d92ad68e87c613689dd370d001b",
-	"d339fd0eb35edf3abd6419c8d857acaf",
-	"9521cd7f32306d969ddabc4e6a617f52",
-	"a1cd9f3e81520842f3cf6cc301cb0021",
-	"18e879b6f154492d593edd3f4554e237",
-	"66e2329c1f5137589e051592587e521e",
-	"e899566dd6c3e82cbc83958e69feb590",
-	"8a4b41d7c47e4e80659d77b4e4bfc9ae",
-	"f1944f6fcfc17803405a1101998c57dd",
-	"f6bcec07567b4f72851b307139656b18",
-	"22e7bb256918fe9924dce9093e2d8a27",
-	"dd25b925815fe7b50b7079f5f65a3970",
-	"0457f10f299acf0c230dd4007612e58f",
-	"ecb420c19efd93814fae2964d69b54af",
-	"14eb47b06dff685d88751c6e32789db4",
-	"e8f072dbb50d1ab6654aa162604a892d",
-	"69cff9c62092332f03a166c7b0034469",
-	"d3619f98970b798ca32c6c14cd25af91",
-	"2246d423774ee9d51a551e89c0539d9e",
-	"75e5d1a1e374a04a699247dad827b6cf",
-	"6d087dd1d4cd15bf47db07c7a96b1db8",
-	"967e4c055ac51b4b2a3e506cebd5826f",
-	"7417aa79247e473401bfa92a25b62e2a",
-	"24f3f4956da34b5c533d9a551ccd7b16",
-	"0c40382de693a5304e2331eb951cc962",
-	"9436f949d51b347db5c8e6258dafaaac",
-	"d2084297fe84c4ba6e04e4fb73d734fe",
-	"42a6f8ff590af21b512e9e088257aa34",
-	"c484ad06b1cdb3a54f3f6464a7a2a6fd",
-	"1b8ac860f5ceb4365400a201ed2917aa",
-	"c43eadabbe7b7473f3f837fc52650f54",
-	"0e5d3205406126b1f838875deb150d6a",
-	"6bf4946f8ec8a9c417f50cd1e67565be",
-	"42f09a2522314799c95b3fc121a0e3e8",
-	"06b8f1487f691a3f7c3f74e133d55870",
-	"1a70a65fb4f314dcf6a31451a9d2704f",
-	"7d4acdd0823279fd28a1e48b49a04669",
-	"09545cc8822a5dfc93bbab708fd69174",
-	"efc063db625013a83c9a426d39a9bddb",
-	"213bbf89b3f5be0ffdb14854bbcb2588",
-	"b69624d89fe2774df9a6f43695d755d4",
-	"c0f9ff9ded82bd73c512e365a894774d",
-	"d1b68507ed89c17ead6f69012982db71",
-	"14cf16db04648978e35c44850855d1b0",
-	"9f254d4eccab74cd91d694df863650a8",
-	"8f8946e2967baa4a814d36ff01d20813",
-	"6b9dc4d24ecba166cb2915d7a6cba43b",
-	"eb35a80418a0042b850e294db7898d4d",
-	"f55f925d280c637d54055c9df088ef5f",
-	"f48427a04f67e33f3ba0a17f7c9704a7",
-	"4a9f5bfcc0321aea2eced896cee65894",
-	"8723a67d1a1df90f1cef96e6fe81e702",
-	"c166c343ee25998f80bad4067960d3fd",
-	"dab67288d16702e676a040fd42344d73",
-	"c8e9e0d80841eb2c116dd14c180e006c",
-	"92294f546bacf0dea9042c93ecba8b34",
-	"013705b1502b37369ad22fe8237d444e",
-	"9b97f8837d5f2ebab0768fc9a6446b93",
-	"7e7e5236b05ec35f89edf8bf655498e7",
-	"7be8f2362c174c776fb9432fe93bf259",
-	"2422e80420276d2df5702c6470879b01",
-	"df645795db778bcce23bbe819a76ba48",
-	"3f97a4ac87dfc58761cda1782d749074",
-	"50e3f45df21ebfa1b706b9c0a1c245a8",
-	"7879541c7ff612c7ddf17cb8f7260183",
-	"67f6542b903b7ba1945eba1a85ee6b1c",
-	"b34b73d36ab6234b8d3f5494d251138e",
-	"0aea139641fdba59ab1103479a96e05f",
-	"02776815a87b8ba878453666d42afe3c",
-	"5929ab0a90459ebac5a16e2fb37c847e",
-	"c244def5b20ce0468f2b5012d04ac7fd",
-	"12116add6fefce36ed8a0aeccce9b6d3",
-	"3cd743841e9d8b878f34d91b793b4fad",
-	"45e87510cf5705262185f46905fae35f",
-	"276047016b0bfb501b2d4fc748165793",
-	"ddd245df5a799417d350bd7f4e0b0b7e",
-	"d34d917a54a2983f3fdbc4b14caae382",
-	"7730fbc09d0c1fb1939a8fc436f6b995",
-	"eb4899ef257a1711cc9270a19702e5b5",
-	"8a30932014bce35bba620895d374df7a",
-	"1924aabf9c50aa00bee5e1f95b5d9e12",
-	"1758d6f8b982aec9fbe50f20e3082b46",
-	"cd075928ab7e6883e697fe7fd3ac43ee",
-}
-
-// hashes2X is taken from
-// https://github.com/BLAKE2/BLAKE2/blob/master/testvectors/blake2-kat.json
-var hashes2X = []string{
-	"0e",
-	"5196",
-	"ad6bad",
-	"d8e4b32f",
-	"8eb89056f3",
-	"410497c2ed72",
-	"f0de771b375c90",
-	"8662db8685033611",
-	"9ef9f1eed88a3f52ca",
-	"08225082df0d2b0a815e",
-	"0f6e84a17439f1bc97c299",
-	"895ec39c78d3556cefdbfabc",
-	"2b396b3fa90ab556079a79b44d",
-	"abae26501c4c1d6123c0f2289111",
-	"bca098df9099b3f785a37ba40fce5f",
-	"19b827f054b67a120f11efb0d690be70",
-	"b88d32a338fd60b58570fda228a121113b",
-	"3f30143af1cad33f9b794576e078cc79062e",
-	"ffddb58d9aa8d38086fcdae07e6653e8f31dfc",
-	"abb99c2e74a74556919040ca0cd857c95ec985e9",
-	"71f13f89af55ba936f8a7188ee93d2e8fb0cf2a720",
-	"99734fdf0eef4838a7515426f4c59b800854e2fcdc1c",
-	"579b1652aa1f5779d2b0e61868af856855020bdd44d7a7",
-	"1383d4ab4a6d8672b4075d421a159f69380ff47e4bb518d5",
-	"d3fa1412712dbbab71d4c6265dc1585c8dcc73380cf807f76a",
-	"1d57868a71e7245667780455d9aaa9e0683baf08fbaf946091c2",
-	"ef80418fe7049c6251ed7960a6b0e9def0da2749781994b24593a0",
-	"ef91cb81e4bfb50231e89475e251e2ef2fde59357551cd227588b63f",
-	"d7f398a5d21c3139cff0562a84f154b6953c7bc18a5f4b60491c196b6d",
-	"0a2abc6d38f30aef253579a4088c5b9aec64391f37d576eb06a300c193a5",
-	"02dd758fa23113a14fd94830e50e0f6b86faec4e551e808b0ca8d00fef2a15",
-	"a4fe2bd0f96a215fa7164ae1a405f4030a586c12b0c29806a099d7d7fdd8dd72",
-	"7dce710a20f42ab687ec6ea83b53faaa418229ce0d5a2ff2a5e66defb0b65c03c9",
-	"0320c40b5eea641d0bc25420b7545ac1d796b61563728a4dc451207f1addeedcf860",
-	"460539415f2baeb626fad748dee0eb3e9f27221661160e13edf39d1b5d476ee0672400",
-	"02de8ffa5b9c748164f99ed9d678b02e53f4ae88fb26c6d94a8cefc328725a692eae78c2",
-	"348a61a0136436136910262ad67ef20644b32c15456d5fad6b1679386d0bea87cc1a2e2b5e",
-	"24c32966c803434d48d2283482ee8f404f598cf7a17961748125d2ed1da987039b1ce00f2ba7",
-	"bd07cb16121d3b47adf03b96c41c947beadc01e40548e0d0773e61780d48d33a0e2a675ca681a6",
-	"a35844e34c20b4b9371b6c52fac412afe5d80a4c1e40aa3a0e5a729dc3d41c2c3719d096f616f0ba",
-	"6df1efbb4567747fe98d218935612f8835852dde2ce3dec767792d7f1d876cdae0056fef085245449d",
-	"48d6094af78bd38d8f4b39c54279b80ef617bc6ad21def0b2c62113b656c5d6a55aea2e3fde94a254b92",
-	"cd6e684759d2f19083164712c2aca0038442efb5b646594396b1fccdbd21203290f44cfdecca0373b3801b",
-	"155dfbf26103c8354362663677fa27d0e1ce3487a821a2a7171014c1bd5dd071f4974df272b1374765b8f2e1",
-	"15b11067f311efa4ee813dbca48d690dc92780656bc4d4c56510523190a240180867c829a8b8b9844175a8aa23",
-	"9bc27953a17fb84d5eabe95b4ea6bc03ea450274abccfb6f3938ded8560fb59662459a11a86b0e0f32fbea6bb1f8",
-	"03b78fb0b34fb8662accdf350a6be75ace9789653ee4375d351e871f6a98ac5e782ca4b4a717665d25e49a5ae25d81",
-	"687e9a6fda6e2ce0e40e4d30fef38c31e3513d2892bbe85c991fc3715947e42bc49bcd079a40ed061c2c3665efe555ab",
-	"f3886027d2049a8909e26545bd202d6a6fa2a6f815d31c7d520f705a81fa606dd695369c37aee4fa77dc645e9b05813ceb",
-	"e4a412ccd20b97797d91ccc286904fcd17c5afe8bed0618f1af333c052c473cd327637d951c32e4af047106036a3bc8c1c45",
-	"92f4b8c240a28b6238bc2eabadaf2ff3c4bfe0e6c61268ace6aebdeb0691450caea4287db8b329bde96af8cdb8a0fe2f57ef2d",
-	"e506834b3445e1a9a9b7bae844e91e0834512a06c0dc75fa4604e3b903c4e23616f2e0c78b5cc496660b4a13064bb1138edef4ff",
-	"27031955a40d8dbd1591f26e3c26e367a3c68f8204a396c6a4ba34b89672896d11276966a42bd516716f35ed63e442e116dbcf35da",
-	"646b1635c68d2328dddd5ac26eb9877c24c28390a45753a65044c3136ae2fe4fb40d09bf555271646d3dceb1ab1b7c8d8e421f553f94",
-	"f6171f8d833743bdee7cc8f8b29c38614e1d2d8d6a5fff68bec2c0f4dd463d7941ff5c368e2683d8f1dc97119bde2b73ca412718bc8cb1",
-	"45db1c478b040aa2e23fb4427017079810775c62abe737e82ec0ef8dcd0fc51f521f29fe6412fff7eac9beb7bcf75f483f3f8b971e42454b",
-	"500dab14687db3ca3dde9304af5f54194b37bdf475628af46b07bfbf6bc2b64ecef284b17f9d1d9be41794699bc0e76c2878b3a55730f7142d",
-	"31bba2efc7b3f415c3f031d4c06bb590ae40085ad157370af30238e03e25a359c9e133212ed34b7a006f839173b577e7015a87fdff2270fafddb",
-	"0600b3fb4b5e1ed0c8b2698ac1d9905e67e027390764821f963ad8d2b33cbc378b9c25c3ee422992d22b760222ed5697be0576d73938ae9d634ed7",
-	"4c0ca4f177d132594a4c613bad68da24c564efa3b4da0d0a903f26534a2e09f8d799d10e78f48ccdb0203954a36c5cf1bf24c076632c2b022b041200",
-	"97aacf2e1b013677b2e14084f097cb1e64d7b3fa36f097e189d86dc4a263bcc46817cd1ee6ff0c7ccd9acef63201cdc0e36254e19204a7388643bb571f",
-	"71fd6846ce7adb0843d6063546a16b79b54ad6c0f018a479a45817624fa221f63525084860559d1a0679c8d89a80701c62743ec2da8419d503f8f0cd7946",
-	"f73dfb046def3362d6de36077dae2cee2587fe95fe0800548bb7d99737897096ba59052e0dadcc1fb0ccb5535391875328637a0376a43a4d89366758dfe3e2",
-	"ec470d0aa932c78c5bcf86203ec0014314114765fa679c3daef214f883a17e1b4ca12f44433772a6e4ef685c904b2fc35586c6bd88f325b965968b06d808d73f",
-	"cf601753ffa09fe48a8a84c37769991e96290e200bbaf1910c57760f989bd0c72e6128e294528ee861ad7eee70d589de3cf4a0c35f7197e1925a64d0133628d87d",
-	"f15413f7d6fc54bb55829f698da92ee42fcf58dde1aa1bd07d438ecdc32ad6bf2bcdbecc99f18ed43e81b33065af5a4ca29960ae50553e610c0bbf4153d580e73dbb",
-	"84b1738adb9757fb9402ef7113581291136184d7ae35fe0b6a738da6acb0889d4d5bac7a957024e3709fa80c77d3859871ed1aa25cf488e438a2d24cfadce6008761dd",
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-}
diff --git a/vendor/golang.org/x/crypto/blake2s/blake2x.go b/vendor/golang.org/x/crypto/blake2s/blake2x.go
deleted file mode 100644
index eaff2a7..0000000
--- a/vendor/golang.org/x/crypto/blake2s/blake2x.go
+++ /dev/null
@@ -1,178 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blake2s
-
-import (
-	"encoding/binary"
-	"errors"
-	"io"
-)
-
-// XOF defines the interface to hash functions that
-// support arbitrary-length output.
-type XOF interface {
-	// Write absorbs more data into the hash's state. It panics if called
-	// after Read.
-	io.Writer
-
-	// Read reads more output from the hash. It returns io.EOF if the limit
-	// has been reached.
-	io.Reader
-
-	// Clone returns a copy of the XOF in its current state.
-	Clone() XOF
-
-	// Reset resets the XOF to its initial state.
-	Reset()
-}
-
-// OutputLengthUnknown can be used as the size argument to NewXOF to indicate
-// the the length of the output is not known in advance.
-const OutputLengthUnknown = 0
-
-// magicUnknownOutputLength is a magic value for the output size that indicates
-// an unknown number of output bytes.
-const magicUnknownOutputLength = 65535
-
-// maxOutputLength is the absolute maximum number of bytes to produce when the
-// number of output bytes is unknown.
-const maxOutputLength = (1 << 32) * 32
-
-// NewXOF creates a new variable-output-length hash. The hash either produce a
-// known number of bytes (1 <= size < 65535), or an unknown number of bytes
-// (size == OutputLengthUnknown). In the latter case, an absolute limit of
-// 128GiB applies.
-//
-// A non-nil key turns the hash into a MAC. The key must between
-// zero and 32 bytes long.
-func NewXOF(size uint16, key []byte) (XOF, error) {
-	if len(key) > Size {
-		return nil, errKeySize
-	}
-	if size == magicUnknownOutputLength {
-		// 2^16-1 indicates an unknown number of bytes and thus isn't a
-		// valid length.
-		return nil, errors.New("blake2s: XOF length too large")
-	}
-	if size == OutputLengthUnknown {
-		size = magicUnknownOutputLength
-	}
-	x := &xof{
-		d: digest{
-			size:   Size,
-			keyLen: len(key),
-		},
-		length: size,
-	}
-	copy(x.d.key[:], key)
-	x.Reset()
-	return x, nil
-}
-
-type xof struct {
-	d                digest
-	length           uint16
-	remaining        uint64
-	cfg, root, block [Size]byte
-	offset           int
-	nodeOffset       uint32
-	readMode         bool
-}
-
-func (x *xof) Write(p []byte) (n int, err error) {
-	if x.readMode {
-		panic("blake2s: write to XOF after read")
-	}
-	return x.d.Write(p)
-}
-
-func (x *xof) Clone() XOF {
-	clone := *x
-	return &clone
-}
-
-func (x *xof) Reset() {
-	x.cfg[0] = byte(Size)
-	binary.LittleEndian.PutUint32(x.cfg[4:], uint32(Size)) // leaf length
-	binary.LittleEndian.PutUint16(x.cfg[12:], x.length)    // XOF length
-	x.cfg[15] = byte(Size)                                 // inner hash size
-
-	x.d.Reset()
-	x.d.h[3] ^= uint32(x.length)
-
-	x.remaining = uint64(x.length)
-	if x.remaining == magicUnknownOutputLength {
-		x.remaining = maxOutputLength
-	}
-	x.offset, x.nodeOffset = 0, 0
-	x.readMode = false
-}
-
-func (x *xof) Read(p []byte) (n int, err error) {
-	if !x.readMode {
-		x.d.finalize(&x.root)
-		x.readMode = true
-	}
-
-	if x.remaining == 0 {
-		return 0, io.EOF
-	}
-
-	n = len(p)
-	if uint64(n) > x.remaining {
-		n = int(x.remaining)
-		p = p[:n]
-	}
-
-	if x.offset > 0 {
-		blockRemaining := Size - x.offset
-		if n < blockRemaining {
-			x.offset += copy(p, x.block[x.offset:])
-			x.remaining -= uint64(n)
-			return
-		}
-		copy(p, x.block[x.offset:])
-		p = p[blockRemaining:]
-		x.offset = 0
-		x.remaining -= uint64(blockRemaining)
-	}
-
-	for len(p) >= Size {
-		binary.LittleEndian.PutUint32(x.cfg[8:], x.nodeOffset)
-		x.nodeOffset++
-
-		x.d.initConfig(&x.cfg)
-		x.d.Write(x.root[:])
-		x.d.finalize(&x.block)
-
-		copy(p, x.block[:])
-		p = p[Size:]
-		x.remaining -= uint64(Size)
-	}
-
-	if todo := len(p); todo > 0 {
-		if x.remaining < uint64(Size) {
-			x.cfg[0] = byte(x.remaining)
-		}
-		binary.LittleEndian.PutUint32(x.cfg[8:], x.nodeOffset)
-		x.nodeOffset++
-
-		x.d.initConfig(&x.cfg)
-		x.d.Write(x.root[:])
-		x.d.finalize(&x.block)
-
-		x.offset = copy(p, x.block[:todo])
-		x.remaining -= uint64(todo)
-	}
-
-	return
-}
-
-func (d *digest) initConfig(cfg *[Size]byte) {
-	d.offset, d.c[0], d.c[1] = 0, 0, 0
-	for i := range d.h {
-		d.h[i] = iv[i] ^ binary.LittleEndian.Uint32(cfg[i*4:])
-	}
-}
diff --git a/vendor/golang.org/x/crypto/blake2s/register.go b/vendor/golang.org/x/crypto/blake2s/register.go
deleted file mode 100644
index d277459..0000000
--- a/vendor/golang.org/x/crypto/blake2s/register.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.9
-
-package blake2s
-
-import (
-	"crypto"
-	"hash"
-)
-
-func init() {
-	newHash256 := func() hash.Hash {
-		h, _ := New256(nil)
-		return h
-	}
-
-	crypto.RegisterHash(crypto.BLAKE2s_256, newHash256)
-}
diff --git a/vendor/golang.org/x/crypto/blowfish/blowfish_test.go b/vendor/golang.org/x/crypto/blowfish/blowfish_test.go
deleted file mode 100644
index 368ba87..0000000
--- a/vendor/golang.org/x/crypto/blowfish/blowfish_test.go
+++ /dev/null
@@ -1,274 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package blowfish
-
-import "testing"
-
-type CryptTest struct {
-	key []byte
-	in  []byte
-	out []byte
-}
-
-// Test vector values are from https://www.schneier.com/code/vectors.txt.
-var encryptTests = []CryptTest{
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
-	{
-		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
-		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
-		[]byte{0x51, 0x86, 0x6F, 0xD5, 0xB8, 0x5E, 0xCB, 0x8A}},
-	{
-		[]byte{0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
-		[]byte{0x7D, 0x85, 0x6F, 0x9A, 0x61, 0x30, 0x63, 0xF2}},
-	{
-		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
-		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
-		[]byte{0x24, 0x66, 0xDD, 0x87, 0x8B, 0x96, 0x3C, 0x9D}},
-
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
-		[]byte{0x61, 0xF9, 0xC3, 0x80, 0x22, 0x81, 0xB0, 0x96}},
-	{
-		[]byte{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0x7D, 0x0C, 0xC6, 0x30, 0xAF, 0xDA, 0x1E, 0xC7}},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x4E, 0xF9, 0x97, 0x45, 0x61, 0x98, 0xDD, 0x78}},
-	{
-		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0x0A, 0xCE, 0xAB, 0x0F, 0xC6, 0xA0, 0xA2, 0x8D}},
-	{
-		[]byte{0x7C, 0xA1, 0x10, 0x45, 0x4A, 0x1A, 0x6E, 0x57},
-		[]byte{0x01, 0xA1, 0xD6, 0xD0, 0x39, 0x77, 0x67, 0x42},
-		[]byte{0x59, 0xC6, 0x82, 0x45, 0xEB, 0x05, 0x28, 0x2B}},
-	{
-		[]byte{0x01, 0x31, 0xD9, 0x61, 0x9D, 0xC1, 0x37, 0x6E},
-		[]byte{0x5C, 0xD5, 0x4C, 0xA8, 0x3D, 0xEF, 0x57, 0xDA},
-		[]byte{0xB1, 0xB8, 0xCC, 0x0B, 0x25, 0x0F, 0x09, 0xA0}},
-	{
-		[]byte{0x07, 0xA1, 0x13, 0x3E, 0x4A, 0x0B, 0x26, 0x86},
-		[]byte{0x02, 0x48, 0xD4, 0x38, 0x06, 0xF6, 0x71, 0x72},
-		[]byte{0x17, 0x30, 0xE5, 0x77, 0x8B, 0xEA, 0x1D, 0xA4}},
-	{
-		[]byte{0x38, 0x49, 0x67, 0x4C, 0x26, 0x02, 0x31, 0x9E},
-		[]byte{0x51, 0x45, 0x4B, 0x58, 0x2D, 0xDF, 0x44, 0x0A},
-		[]byte{0xA2, 0x5E, 0x78, 0x56, 0xCF, 0x26, 0x51, 0xEB}},
-	{
-		[]byte{0x04, 0xB9, 0x15, 0xBA, 0x43, 0xFE, 0xB5, 0xB6},
-		[]byte{0x42, 0xFD, 0x44, 0x30, 0x59, 0x57, 0x7F, 0xA2},
-		[]byte{0x35, 0x38, 0x82, 0xB1, 0x09, 0xCE, 0x8F, 0x1A}},
-	{
-		[]byte{0x01, 0x13, 0xB9, 0x70, 0xFD, 0x34, 0xF2, 0xCE},
-		[]byte{0x05, 0x9B, 0x5E, 0x08, 0x51, 0xCF, 0x14, 0x3A},
-		[]byte{0x48, 0xF4, 0xD0, 0x88, 0x4C, 0x37, 0x99, 0x18}},
-	{
-		[]byte{0x01, 0x70, 0xF1, 0x75, 0x46, 0x8F, 0xB5, 0xE6},
-		[]byte{0x07, 0x56, 0xD8, 0xE0, 0x77, 0x47, 0x61, 0xD2},
-		[]byte{0x43, 0x21, 0x93, 0xB7, 0x89, 0x51, 0xFC, 0x98}},
-	{
-		[]byte{0x43, 0x29, 0x7F, 0xAD, 0x38, 0xE3, 0x73, 0xFE},
-		[]byte{0x76, 0x25, 0x14, 0xB8, 0x29, 0xBF, 0x48, 0x6A},
-		[]byte{0x13, 0xF0, 0x41, 0x54, 0xD6, 0x9D, 0x1A, 0xE5}},
-	{
-		[]byte{0x07, 0xA7, 0x13, 0x70, 0x45, 0xDA, 0x2A, 0x16},
-		[]byte{0x3B, 0xDD, 0x11, 0x90, 0x49, 0x37, 0x28, 0x02},
-		[]byte{0x2E, 0xED, 0xDA, 0x93, 0xFF, 0xD3, 0x9C, 0x79}},
-	{
-		[]byte{0x04, 0x68, 0x91, 0x04, 0xC2, 0xFD, 0x3B, 0x2F},
-		[]byte{0x26, 0x95, 0x5F, 0x68, 0x35, 0xAF, 0x60, 0x9A},
-		[]byte{0xD8, 0x87, 0xE0, 0x39, 0x3C, 0x2D, 0xA6, 0xE3}},
-	{
-		[]byte{0x37, 0xD0, 0x6B, 0xB5, 0x16, 0xCB, 0x75, 0x46},
-		[]byte{0x16, 0x4D, 0x5E, 0x40, 0x4F, 0x27, 0x52, 0x32},
-		[]byte{0x5F, 0x99, 0xD0, 0x4F, 0x5B, 0x16, 0x39, 0x69}},
-	{
-		[]byte{0x1F, 0x08, 0x26, 0x0D, 0x1A, 0xC2, 0x46, 0x5E},
-		[]byte{0x6B, 0x05, 0x6E, 0x18, 0x75, 0x9F, 0x5C, 0xCA},
-		[]byte{0x4A, 0x05, 0x7A, 0x3B, 0x24, 0xD3, 0x97, 0x7B}},
-	{
-		[]byte{0x58, 0x40, 0x23, 0x64, 0x1A, 0xBA, 0x61, 0x76},
-		[]byte{0x00, 0x4B, 0xD6, 0xEF, 0x09, 0x17, 0x60, 0x62},
-		[]byte{0x45, 0x20, 0x31, 0xC1, 0xE4, 0xFA, 0xDA, 0x8E}},
-	{
-		[]byte{0x02, 0x58, 0x16, 0x16, 0x46, 0x29, 0xB0, 0x07},
-		[]byte{0x48, 0x0D, 0x39, 0x00, 0x6E, 0xE7, 0x62, 0xF2},
-		[]byte{0x75, 0x55, 0xAE, 0x39, 0xF5, 0x9B, 0x87, 0xBD}},
-	{
-		[]byte{0x49, 0x79, 0x3E, 0xBC, 0x79, 0xB3, 0x25, 0x8F},
-		[]byte{0x43, 0x75, 0x40, 0xC8, 0x69, 0x8F, 0x3C, 0xFA},
-		[]byte{0x53, 0xC5, 0x5F, 0x9C, 0xB4, 0x9F, 0xC0, 0x19}},
-	{
-		[]byte{0x4F, 0xB0, 0x5E, 0x15, 0x15, 0xAB, 0x73, 0xA7},
-		[]byte{0x07, 0x2D, 0x43, 0xA0, 0x77, 0x07, 0x52, 0x92},
-		[]byte{0x7A, 0x8E, 0x7B, 0xFA, 0x93, 0x7E, 0x89, 0xA3}},
-	{
-		[]byte{0x49, 0xE9, 0x5D, 0x6D, 0x4C, 0xA2, 0x29, 0xBF},
-		[]byte{0x02, 0xFE, 0x55, 0x77, 0x81, 0x17, 0xF1, 0x2A},
-		[]byte{0xCF, 0x9C, 0x5D, 0x7A, 0x49, 0x86, 0xAD, 0xB5}},
-	{
-		[]byte{0x01, 0x83, 0x10, 0xDC, 0x40, 0x9B, 0x26, 0xD6},
-		[]byte{0x1D, 0x9D, 0x5C, 0x50, 0x18, 0xF7, 0x28, 0xC2},
-		[]byte{0xD1, 0xAB, 0xB2, 0x90, 0x65, 0x8B, 0xC7, 0x78}},
-	{
-		[]byte{0x1C, 0x58, 0x7F, 0x1C, 0x13, 0x92, 0x4F, 0xEF},
-		[]byte{0x30, 0x55, 0x32, 0x28, 0x6D, 0x6F, 0x29, 0x5A},
-		[]byte{0x55, 0xCB, 0x37, 0x74, 0xD1, 0x3E, 0xF2, 0x01}},
-	{
-		[]byte{0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01},
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0xFA, 0x34, 0xEC, 0x48, 0x47, 0xB2, 0x68, 0xB2}},
-	{
-		[]byte{0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E},
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0xA7, 0x90, 0x79, 0x51, 0x08, 0xEA, 0x3C, 0xAE}},
-	{
-		[]byte{0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE},
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0xC3, 0x9E, 0x07, 0x2D, 0x9F, 0xAC, 0x63, 0x1D}},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
-		[]byte{0x01, 0x49, 0x33, 0xE0, 0xCD, 0xAF, 0xF6, 0xE4}},
-	{
-		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0xF2, 0x1E, 0x9A, 0x77, 0xB7, 0x1C, 0x49, 0xBC}},
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x24, 0x59, 0x46, 0x88, 0x57, 0x54, 0x36, 0x9A}},
-	{
-		[]byte{0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10},
-		[]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
-		[]byte{0x6B, 0x5C, 0x5A, 0x9C, 0x5D, 0x9E, 0x0A, 0x5A}},
-}
-
-func TestCipherEncrypt(t *testing.T) {
-	for i, tt := range encryptTests {
-		c, err := NewCipher(tt.key)
-		if err != nil {
-			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
-			continue
-		}
-		ct := make([]byte, len(tt.out))
-		c.Encrypt(ct, tt.in)
-		for j, v := range ct {
-			if v != tt.out[j] {
-				t.Errorf("Cipher.Encrypt, test vector #%d: cipher-text[%d] = %#x, expected %#x", i, j, v, tt.out[j])
-				break
-			}
-		}
-	}
-}
-
-func TestCipherDecrypt(t *testing.T) {
-	for i, tt := range encryptTests {
-		c, err := NewCipher(tt.key)
-		if err != nil {
-			t.Errorf("NewCipher(%d bytes) = %s", len(tt.key), err)
-			continue
-		}
-		pt := make([]byte, len(tt.in))
-		c.Decrypt(pt, tt.out)
-		for j, v := range pt {
-			if v != tt.in[j] {
-				t.Errorf("Cipher.Decrypt, test vector #%d: plain-text[%d] = %#x, expected %#x", i, j, v, tt.in[j])
-				break
-			}
-		}
-	}
-}
-
-func TestSaltedCipherKeyLength(t *testing.T) {
-	if _, err := NewSaltedCipher(nil, []byte{'a'}); err != KeySizeError(0) {
-		t.Errorf("NewSaltedCipher with short key, gave error %#v, expected %#v", err, KeySizeError(0))
-	}
-
-	// A 57-byte key. One over the typical blowfish restriction.
-	key := []byte("012345678901234567890123456789012345678901234567890123456")
-	if _, err := NewSaltedCipher(key, []byte{'a'}); err != nil {
-		t.Errorf("NewSaltedCipher with long key, gave error %#v", err)
-	}
-}
-
-// Test vectors generated with Blowfish from OpenSSH.
-var saltedVectors = [][8]byte{
-	{0x0c, 0x82, 0x3b, 0x7b, 0x8d, 0x01, 0x4b, 0x7e},
-	{0xd1, 0xe1, 0x93, 0xf0, 0x70, 0xa6, 0xdb, 0x12},
-	{0xfc, 0x5e, 0xba, 0xde, 0xcb, 0xf8, 0x59, 0xad},
-	{0x8a, 0x0c, 0x76, 0xe7, 0xdd, 0x2c, 0xd3, 0xa8},
-	{0x2c, 0xcb, 0x7b, 0xee, 0xac, 0x7b, 0x7f, 0xf8},
-	{0xbb, 0xf6, 0x30, 0x6f, 0xe1, 0x5d, 0x62, 0xbf},
-	{0x97, 0x1e, 0xc1, 0x3d, 0x3d, 0xe0, 0x11, 0xe9},
-	{0x06, 0xd7, 0x4d, 0xb1, 0x80, 0xa3, 0xb1, 0x38},
-	{0x67, 0xa1, 0xa9, 0x75, 0x0e, 0x5b, 0xc6, 0xb4},
-	{0x51, 0x0f, 0x33, 0x0e, 0x4f, 0x67, 0xd2, 0x0c},
-	{0xf1, 0x73, 0x7e, 0xd8, 0x44, 0xea, 0xdb, 0xe5},
-	{0x14, 0x0e, 0x16, 0xce, 0x7f, 0x4a, 0x9c, 0x7b},
-	{0x4b, 0xfe, 0x43, 0xfd, 0xbf, 0x36, 0x04, 0x47},
-	{0xb1, 0xeb, 0x3e, 0x15, 0x36, 0xa7, 0xbb, 0xe2},
-	{0x6d, 0x0b, 0x41, 0xdd, 0x00, 0x98, 0x0b, 0x19},
-	{0xd3, 0xce, 0x45, 0xce, 0x1d, 0x56, 0xb7, 0xfc},
-	{0xd9, 0xf0, 0xfd, 0xda, 0xc0, 0x23, 0xb7, 0x93},
-	{0x4c, 0x6f, 0xa1, 0xe4, 0x0c, 0xa8, 0xca, 0x57},
-	{0xe6, 0x2f, 0x28, 0xa7, 0x0c, 0x94, 0x0d, 0x08},
-	{0x8f, 0xe3, 0xf0, 0xb6, 0x29, 0xe3, 0x44, 0x03},
-	{0xff, 0x98, 0xdd, 0x04, 0x45, 0xb4, 0x6d, 0x1f},
-	{0x9e, 0x45, 0x4d, 0x18, 0x40, 0x53, 0xdb, 0xef},
-	{0xb7, 0x3b, 0xef, 0x29, 0xbe, 0xa8, 0x13, 0x71},
-	{0x02, 0x54, 0x55, 0x41, 0x8e, 0x04, 0xfc, 0xad},
-	{0x6a, 0x0a, 0xee, 0x7c, 0x10, 0xd9, 0x19, 0xfe},
-	{0x0a, 0x22, 0xd9, 0x41, 0xcc, 0x23, 0x87, 0x13},
-	{0x6e, 0xff, 0x1f, 0xff, 0x36, 0x17, 0x9c, 0xbe},
-	{0x79, 0xad, 0xb7, 0x40, 0xf4, 0x9f, 0x51, 0xa6},
-	{0x97, 0x81, 0x99, 0xa4, 0xde, 0x9e, 0x9f, 0xb6},
-	{0x12, 0x19, 0x7a, 0x28, 0xd0, 0xdc, 0xcc, 0x92},
-	{0x81, 0xda, 0x60, 0x1e, 0x0e, 0xdd, 0x65, 0x56},
-	{0x7d, 0x76, 0x20, 0xb2, 0x73, 0xc9, 0x9e, 0xee},
-}
-
-func TestSaltedCipher(t *testing.T) {
-	var key, salt [32]byte
-	for i := range key {
-		key[i] = byte(i)
-		salt[i] = byte(i + 32)
-	}
-	for i, v := range saltedVectors {
-		c, err := NewSaltedCipher(key[:], salt[:i])
-		if err != nil {
-			t.Fatal(err)
-		}
-		var buf [8]byte
-		c.Encrypt(buf[:], buf[:])
-		if v != buf {
-			t.Errorf("%d: expected %x, got %x", i, v, buf)
-		}
-	}
-}
-
-func BenchmarkExpandKeyWithSalt(b *testing.B) {
-	key := make([]byte, 32)
-	salt := make([]byte, 16)
-	c, _ := NewCipher(key)
-	for i := 0; i < b.N; i++ {
-		expandKeyWithSalt(key, salt, c)
-	}
-}
-
-func BenchmarkExpandKey(b *testing.B) {
-	key := make([]byte, 32)
-	c, _ := NewCipher(key)
-	for i := 0; i < b.N; i++ {
-		ExpandKey(key, c)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/bn256/bn256.go b/vendor/golang.org/x/crypto/bn256/bn256.go
deleted file mode 100644
index ff27feb..0000000
--- a/vendor/golang.org/x/crypto/bn256/bn256.go
+++ /dev/null
@@ -1,416 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package bn256 implements a particular bilinear group.
-//
-// Bilinear groups are the basis of many of the new cryptographic protocols
-// that have been proposed over the past decade. They consist of a triplet of
-// groups (G₁, G₂ and GT) such that there exists a function e(g₁ˣ,g₂ʸ)=gTˣʸ
-// (where gₓ is a generator of the respective group). That function is called
-// a pairing function.
-//
-// This package specifically implements the Optimal Ate pairing over a 256-bit
-// Barreto-Naehrig curve as described in
-// http://cryptojedi.org/papers/dclxvi-20100714.pdf. Its output is compatible
-// with the implementation described in that paper.
-//
-// (This package previously claimed to operate at a 128-bit security level.
-// However, recent improvements in attacks mean that is no longer true. See
-// https://moderncrypto.org/mail-archive/curves/2016/000740.html.)
-package bn256 // import "golang.org/x/crypto/bn256"
-
-import (
-	"crypto/rand"
-	"io"
-	"math/big"
-)
-
-// BUG(agl): this implementation is not constant time.
-// TODO(agl): keep GF(p²) elements in Mongomery form.
-
-// G1 is an abstract cyclic group. The zero value is suitable for use as the
-// output of an operation, but cannot be used as an input.
-type G1 struct {
-	p *curvePoint
-}
-
-// RandomG1 returns x and g₁ˣ where x is a random, non-zero number read from r.
-func RandomG1(r io.Reader) (*big.Int, *G1, error) {
-	var k *big.Int
-	var err error
-
-	for {
-		k, err = rand.Int(r, Order)
-		if err != nil {
-			return nil, nil, err
-		}
-		if k.Sign() > 0 {
-			break
-		}
-	}
-
-	return k, new(G1).ScalarBaseMult(k), nil
-}
-
-func (e *G1) String() string {
-	return "bn256.G1" + e.p.String()
-}
-
-// ScalarBaseMult sets e to g*k where g is the generator of the group and
-// then returns e.
-func (e *G1) ScalarBaseMult(k *big.Int) *G1 {
-	if e.p == nil {
-		e.p = newCurvePoint(nil)
-	}
-	e.p.Mul(curveGen, k, new(bnPool))
-	return e
-}
-
-// ScalarMult sets e to a*k and then returns e.
-func (e *G1) ScalarMult(a *G1, k *big.Int) *G1 {
-	if e.p == nil {
-		e.p = newCurvePoint(nil)
-	}
-	e.p.Mul(a.p, k, new(bnPool))
-	return e
-}
-
-// Add sets e to a+b and then returns e.
-// BUG(agl): this function is not complete: a==b fails.
-func (e *G1) Add(a, b *G1) *G1 {
-	if e.p == nil {
-		e.p = newCurvePoint(nil)
-	}
-	e.p.Add(a.p, b.p, new(bnPool))
-	return e
-}
-
-// Neg sets e to -a and then returns e.
-func (e *G1) Neg(a *G1) *G1 {
-	if e.p == nil {
-		e.p = newCurvePoint(nil)
-	}
-	e.p.Negative(a.p)
-	return e
-}
-
-// Marshal converts n to a byte slice.
-func (e *G1) Marshal() []byte {
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	if e.p.IsInfinity() {
-		return make([]byte, numBytes*2)
-	}
-
-	e.p.MakeAffine(nil)
-
-	xBytes := new(big.Int).Mod(e.p.x, p).Bytes()
-	yBytes := new(big.Int).Mod(e.p.y, p).Bytes()
-
-	ret := make([]byte, numBytes*2)
-	copy(ret[1*numBytes-len(xBytes):], xBytes)
-	copy(ret[2*numBytes-len(yBytes):], yBytes)
-
-	return ret
-}
-
-// Unmarshal sets e to the result of converting the output of Marshal back into
-// a group element and then returns e.
-func (e *G1) Unmarshal(m []byte) (*G1, bool) {
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	if len(m) != 2*numBytes {
-		return nil, false
-	}
-
-	if e.p == nil {
-		e.p = newCurvePoint(nil)
-	}
-
-	e.p.x.SetBytes(m[0*numBytes : 1*numBytes])
-	e.p.y.SetBytes(m[1*numBytes : 2*numBytes])
-
-	if e.p.x.Sign() == 0 && e.p.y.Sign() == 0 {
-		// This is the point at infinity.
-		e.p.y.SetInt64(1)
-		e.p.z.SetInt64(0)
-		e.p.t.SetInt64(0)
-	} else {
-		e.p.z.SetInt64(1)
-		e.p.t.SetInt64(1)
-
-		if !e.p.IsOnCurve() {
-			return nil, false
-		}
-	}
-
-	return e, true
-}
-
-// G2 is an abstract cyclic group. The zero value is suitable for use as the
-// output of an operation, but cannot be used as an input.
-type G2 struct {
-	p *twistPoint
-}
-
-// RandomG1 returns x and g₂ˣ where x is a random, non-zero number read from r.
-func RandomG2(r io.Reader) (*big.Int, *G2, error) {
-	var k *big.Int
-	var err error
-
-	for {
-		k, err = rand.Int(r, Order)
-		if err != nil {
-			return nil, nil, err
-		}
-		if k.Sign() > 0 {
-			break
-		}
-	}
-
-	return k, new(G2).ScalarBaseMult(k), nil
-}
-
-func (e *G2) String() string {
-	return "bn256.G2" + e.p.String()
-}
-
-// ScalarBaseMult sets e to g*k where g is the generator of the group and
-// then returns out.
-func (e *G2) ScalarBaseMult(k *big.Int) *G2 {
-	if e.p == nil {
-		e.p = newTwistPoint(nil)
-	}
-	e.p.Mul(twistGen, k, new(bnPool))
-	return e
-}
-
-// ScalarMult sets e to a*k and then returns e.
-func (e *G2) ScalarMult(a *G2, k *big.Int) *G2 {
-	if e.p == nil {
-		e.p = newTwistPoint(nil)
-	}
-	e.p.Mul(a.p, k, new(bnPool))
-	return e
-}
-
-// Add sets e to a+b and then returns e.
-// BUG(agl): this function is not complete: a==b fails.
-func (e *G2) Add(a, b *G2) *G2 {
-	if e.p == nil {
-		e.p = newTwistPoint(nil)
-	}
-	e.p.Add(a.p, b.p, new(bnPool))
-	return e
-}
-
-// Marshal converts n into a byte slice.
-func (n *G2) Marshal() []byte {
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	if n.p.IsInfinity() {
-		return make([]byte, numBytes*4)
-	}
-
-	n.p.MakeAffine(nil)
-
-	xxBytes := new(big.Int).Mod(n.p.x.x, p).Bytes()
-	xyBytes := new(big.Int).Mod(n.p.x.y, p).Bytes()
-	yxBytes := new(big.Int).Mod(n.p.y.x, p).Bytes()
-	yyBytes := new(big.Int).Mod(n.p.y.y, p).Bytes()
-
-	ret := make([]byte, numBytes*4)
-	copy(ret[1*numBytes-len(xxBytes):], xxBytes)
-	copy(ret[2*numBytes-len(xyBytes):], xyBytes)
-	copy(ret[3*numBytes-len(yxBytes):], yxBytes)
-	copy(ret[4*numBytes-len(yyBytes):], yyBytes)
-
-	return ret
-}
-
-// Unmarshal sets e to the result of converting the output of Marshal back into
-// a group element and then returns e.
-func (e *G2) Unmarshal(m []byte) (*G2, bool) {
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	if len(m) != 4*numBytes {
-		return nil, false
-	}
-
-	if e.p == nil {
-		e.p = newTwistPoint(nil)
-	}
-
-	e.p.x.x.SetBytes(m[0*numBytes : 1*numBytes])
-	e.p.x.y.SetBytes(m[1*numBytes : 2*numBytes])
-	e.p.y.x.SetBytes(m[2*numBytes : 3*numBytes])
-	e.p.y.y.SetBytes(m[3*numBytes : 4*numBytes])
-
-	if e.p.x.x.Sign() == 0 &&
-		e.p.x.y.Sign() == 0 &&
-		e.p.y.x.Sign() == 0 &&
-		e.p.y.y.Sign() == 0 {
-		// This is the point at infinity.
-		e.p.y.SetOne()
-		e.p.z.SetZero()
-		e.p.t.SetZero()
-	} else {
-		e.p.z.SetOne()
-		e.p.t.SetOne()
-
-		if !e.p.IsOnCurve() {
-			return nil, false
-		}
-	}
-
-	return e, true
-}
-
-// GT is an abstract cyclic group. The zero value is suitable for use as the
-// output of an operation, but cannot be used as an input.
-type GT struct {
-	p *gfP12
-}
-
-func (g *GT) String() string {
-	return "bn256.GT" + g.p.String()
-}
-
-// ScalarMult sets e to a*k and then returns e.
-func (e *GT) ScalarMult(a *GT, k *big.Int) *GT {
-	if e.p == nil {
-		e.p = newGFp12(nil)
-	}
-	e.p.Exp(a.p, k, new(bnPool))
-	return e
-}
-
-// Add sets e to a+b and then returns e.
-func (e *GT) Add(a, b *GT) *GT {
-	if e.p == nil {
-		e.p = newGFp12(nil)
-	}
-	e.p.Mul(a.p, b.p, new(bnPool))
-	return e
-}
-
-// Neg sets e to -a and then returns e.
-func (e *GT) Neg(a *GT) *GT {
-	if e.p == nil {
-		e.p = newGFp12(nil)
-	}
-	e.p.Invert(a.p, new(bnPool))
-	return e
-}
-
-// Marshal converts n into a byte slice.
-func (n *GT) Marshal() []byte {
-	n.p.Minimal()
-
-	xxxBytes := n.p.x.x.x.Bytes()
-	xxyBytes := n.p.x.x.y.Bytes()
-	xyxBytes := n.p.x.y.x.Bytes()
-	xyyBytes := n.p.x.y.y.Bytes()
-	xzxBytes := n.p.x.z.x.Bytes()
-	xzyBytes := n.p.x.z.y.Bytes()
-	yxxBytes := n.p.y.x.x.Bytes()
-	yxyBytes := n.p.y.x.y.Bytes()
-	yyxBytes := n.p.y.y.x.Bytes()
-	yyyBytes := n.p.y.y.y.Bytes()
-	yzxBytes := n.p.y.z.x.Bytes()
-	yzyBytes := n.p.y.z.y.Bytes()
-
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	ret := make([]byte, numBytes*12)
-	copy(ret[1*numBytes-len(xxxBytes):], xxxBytes)
-	copy(ret[2*numBytes-len(xxyBytes):], xxyBytes)
-	copy(ret[3*numBytes-len(xyxBytes):], xyxBytes)
-	copy(ret[4*numBytes-len(xyyBytes):], xyyBytes)
-	copy(ret[5*numBytes-len(xzxBytes):], xzxBytes)
-	copy(ret[6*numBytes-len(xzyBytes):], xzyBytes)
-	copy(ret[7*numBytes-len(yxxBytes):], yxxBytes)
-	copy(ret[8*numBytes-len(yxyBytes):], yxyBytes)
-	copy(ret[9*numBytes-len(yyxBytes):], yyxBytes)
-	copy(ret[10*numBytes-len(yyyBytes):], yyyBytes)
-	copy(ret[11*numBytes-len(yzxBytes):], yzxBytes)
-	copy(ret[12*numBytes-len(yzyBytes):], yzyBytes)
-
-	return ret
-}
-
-// Unmarshal sets e to the result of converting the output of Marshal back into
-// a group element and then returns e.
-func (e *GT) Unmarshal(m []byte) (*GT, bool) {
-	// Each value is a 256-bit number.
-	const numBytes = 256 / 8
-
-	if len(m) != 12*numBytes {
-		return nil, false
-	}
-
-	if e.p == nil {
-		e.p = newGFp12(nil)
-	}
-
-	e.p.x.x.x.SetBytes(m[0*numBytes : 1*numBytes])
-	e.p.x.x.y.SetBytes(m[1*numBytes : 2*numBytes])
-	e.p.x.y.x.SetBytes(m[2*numBytes : 3*numBytes])
-	e.p.x.y.y.SetBytes(m[3*numBytes : 4*numBytes])
-	e.p.x.z.x.SetBytes(m[4*numBytes : 5*numBytes])
-	e.p.x.z.y.SetBytes(m[5*numBytes : 6*numBytes])
-	e.p.y.x.x.SetBytes(m[6*numBytes : 7*numBytes])
-	e.p.y.x.y.SetBytes(m[7*numBytes : 8*numBytes])
-	e.p.y.y.x.SetBytes(m[8*numBytes : 9*numBytes])
-	e.p.y.y.y.SetBytes(m[9*numBytes : 10*numBytes])
-	e.p.y.z.x.SetBytes(m[10*numBytes : 11*numBytes])
-	e.p.y.z.y.SetBytes(m[11*numBytes : 12*numBytes])
-
-	return e, true
-}
-
-// Pair calculates an Optimal Ate pairing.
-func Pair(g1 *G1, g2 *G2) *GT {
-	return &GT{optimalAte(g2.p, g1.p, new(bnPool))}
-}
-
-// bnPool implements a tiny cache of *big.Int objects that's used to reduce the
-// number of allocations made during processing.
-type bnPool struct {
-	bns   []*big.Int
-	count int
-}
-
-func (pool *bnPool) Get() *big.Int {
-	if pool == nil {
-		return new(big.Int)
-	}
-
-	pool.count++
-	l := len(pool.bns)
-	if l == 0 {
-		return new(big.Int)
-	}
-
-	bn := pool.bns[l-1]
-	pool.bns = pool.bns[:l-1]
-	return bn
-}
-
-func (pool *bnPool) Put(bn *big.Int) {
-	if pool == nil {
-		return
-	}
-	pool.bns = append(pool.bns, bn)
-	pool.count--
-}
-
-func (pool *bnPool) Count() int {
-	return pool.count
-}
diff --git a/vendor/golang.org/x/crypto/bn256/bn256_test.go b/vendor/golang.org/x/crypto/bn256/bn256_test.go
deleted file mode 100644
index 1cec388..0000000
--- a/vendor/golang.org/x/crypto/bn256/bn256_test.go
+++ /dev/null
@@ -1,304 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-import (
-	"bytes"
-	"crypto/rand"
-	"math/big"
-	"testing"
-)
-
-func TestGFp2Invert(t *testing.T) {
-	pool := new(bnPool)
-
-	a := newGFp2(pool)
-	a.x.SetString("23423492374", 10)
-	a.y.SetString("12934872398472394827398470", 10)
-
-	inv := newGFp2(pool)
-	inv.Invert(a, pool)
-
-	b := newGFp2(pool).Mul(inv, a, pool)
-	if b.x.Int64() != 0 || b.y.Int64() != 1 {
-		t.Fatalf("bad result for a^-1*a: %s %s", b.x, b.y)
-	}
-
-	a.Put(pool)
-	b.Put(pool)
-	inv.Put(pool)
-
-	if c := pool.Count(); c > 0 {
-		t.Errorf("Pool count non-zero: %d\n", c)
-	}
-}
-
-func isZero(n *big.Int) bool {
-	return new(big.Int).Mod(n, p).Int64() == 0
-}
-
-func isOne(n *big.Int) bool {
-	return new(big.Int).Mod(n, p).Int64() == 1
-}
-
-func TestGFp6Invert(t *testing.T) {
-	pool := new(bnPool)
-
-	a := newGFp6(pool)
-	a.x.x.SetString("239487238491", 10)
-	a.x.y.SetString("2356249827341", 10)
-	a.y.x.SetString("082659782", 10)
-	a.y.y.SetString("182703523765", 10)
-	a.z.x.SetString("978236549263", 10)
-	a.z.y.SetString("64893242", 10)
-
-	inv := newGFp6(pool)
-	inv.Invert(a, pool)
-
-	b := newGFp6(pool).Mul(inv, a, pool)
-	if !isZero(b.x.x) ||
-		!isZero(b.x.y) ||
-		!isZero(b.y.x) ||
-		!isZero(b.y.y) ||
-		!isZero(b.z.x) ||
-		!isOne(b.z.y) {
-		t.Fatalf("bad result for a^-1*a: %s", b)
-	}
-
-	a.Put(pool)
-	b.Put(pool)
-	inv.Put(pool)
-
-	if c := pool.Count(); c > 0 {
-		t.Errorf("Pool count non-zero: %d\n", c)
-	}
-}
-
-func TestGFp12Invert(t *testing.T) {
-	pool := new(bnPool)
-
-	a := newGFp12(pool)
-	a.x.x.x.SetString("239846234862342323958623", 10)
-	a.x.x.y.SetString("2359862352529835623", 10)
-	a.x.y.x.SetString("928836523", 10)
-	a.x.y.y.SetString("9856234", 10)
-	a.x.z.x.SetString("235635286", 10)
-	a.x.z.y.SetString("5628392833", 10)
-	a.y.x.x.SetString("252936598265329856238956532167968", 10)
-	a.y.x.y.SetString("23596239865236954178968", 10)
-	a.y.y.x.SetString("95421692834", 10)
-	a.y.y.y.SetString("236548", 10)
-	a.y.z.x.SetString("924523", 10)
-	a.y.z.y.SetString("12954623", 10)
-
-	inv := newGFp12(pool)
-	inv.Invert(a, pool)
-
-	b := newGFp12(pool).Mul(inv, a, pool)
-	if !isZero(b.x.x.x) ||
-		!isZero(b.x.x.y) ||
-		!isZero(b.x.y.x) ||
-		!isZero(b.x.y.y) ||
-		!isZero(b.x.z.x) ||
-		!isZero(b.x.z.y) ||
-		!isZero(b.y.x.x) ||
-		!isZero(b.y.x.y) ||
-		!isZero(b.y.y.x) ||
-		!isZero(b.y.y.y) ||
-		!isZero(b.y.z.x) ||
-		!isOne(b.y.z.y) {
-		t.Fatalf("bad result for a^-1*a: %s", b)
-	}
-
-	a.Put(pool)
-	b.Put(pool)
-	inv.Put(pool)
-
-	if c := pool.Count(); c > 0 {
-		t.Errorf("Pool count non-zero: %d\n", c)
-	}
-}
-
-func TestCurveImpl(t *testing.T) {
-	pool := new(bnPool)
-
-	g := &curvePoint{
-		pool.Get().SetInt64(1),
-		pool.Get().SetInt64(-2),
-		pool.Get().SetInt64(1),
-		pool.Get().SetInt64(0),
-	}
-
-	x := pool.Get().SetInt64(32498273234)
-	X := newCurvePoint(pool).Mul(g, x, pool)
-
-	y := pool.Get().SetInt64(98732423523)
-	Y := newCurvePoint(pool).Mul(g, y, pool)
-
-	s1 := newCurvePoint(pool).Mul(X, y, pool).MakeAffine(pool)
-	s2 := newCurvePoint(pool).Mul(Y, x, pool).MakeAffine(pool)
-
-	if s1.x.Cmp(s2.x) != 0 ||
-		s2.x.Cmp(s1.x) != 0 {
-		t.Errorf("DH points don't match: (%s, %s) (%s, %s)", s1.x, s1.y, s2.x, s2.y)
-	}
-
-	pool.Put(x)
-	X.Put(pool)
-	pool.Put(y)
-	Y.Put(pool)
-	s1.Put(pool)
-	s2.Put(pool)
-	g.Put(pool)
-
-	if c := pool.Count(); c > 0 {
-		t.Errorf("Pool count non-zero: %d\n", c)
-	}
-}
-
-func TestOrderG1(t *testing.T) {
-	g := new(G1).ScalarBaseMult(Order)
-	if !g.p.IsInfinity() {
-		t.Error("G1 has incorrect order")
-	}
-
-	one := new(G1).ScalarBaseMult(new(big.Int).SetInt64(1))
-	g.Add(g, one)
-	g.p.MakeAffine(nil)
-	if g.p.x.Cmp(one.p.x) != 0 || g.p.y.Cmp(one.p.y) != 0 {
-		t.Errorf("1+0 != 1 in G1")
-	}
-}
-
-func TestOrderG2(t *testing.T) {
-	g := new(G2).ScalarBaseMult(Order)
-	if !g.p.IsInfinity() {
-		t.Error("G2 has incorrect order")
-	}
-
-	one := new(G2).ScalarBaseMult(new(big.Int).SetInt64(1))
-	g.Add(g, one)
-	g.p.MakeAffine(nil)
-	if g.p.x.x.Cmp(one.p.x.x) != 0 ||
-		g.p.x.y.Cmp(one.p.x.y) != 0 ||
-		g.p.y.x.Cmp(one.p.y.x) != 0 ||
-		g.p.y.y.Cmp(one.p.y.y) != 0 {
-		t.Errorf("1+0 != 1 in G2")
-	}
-}
-
-func TestOrderGT(t *testing.T) {
-	gt := Pair(&G1{curveGen}, &G2{twistGen})
-	g := new(GT).ScalarMult(gt, Order)
-	if !g.p.IsOne() {
-		t.Error("GT has incorrect order")
-	}
-}
-
-func TestBilinearity(t *testing.T) {
-	for i := 0; i < 2; i++ {
-		a, p1, _ := RandomG1(rand.Reader)
-		b, p2, _ := RandomG2(rand.Reader)
-		e1 := Pair(p1, p2)
-
-		e2 := Pair(&G1{curveGen}, &G2{twistGen})
-		e2.ScalarMult(e2, a)
-		e2.ScalarMult(e2, b)
-
-		minusE2 := new(GT).Neg(e2)
-		e1.Add(e1, minusE2)
-
-		if !e1.p.IsOne() {
-			t.Fatalf("bad pairing result: %s", e1)
-		}
-	}
-}
-
-func TestG1Marshal(t *testing.T) {
-	g := new(G1).ScalarBaseMult(new(big.Int).SetInt64(1))
-	form := g.Marshal()
-	_, ok := new(G1).Unmarshal(form)
-	if !ok {
-		t.Fatalf("failed to unmarshal")
-	}
-
-	g.ScalarBaseMult(Order)
-	form = g.Marshal()
-	g2, ok := new(G1).Unmarshal(form)
-	if !ok {
-		t.Fatalf("failed to unmarshal ∞")
-	}
-	if !g2.p.IsInfinity() {
-		t.Fatalf("∞ unmarshaled incorrectly")
-	}
-}
-
-func TestG2Marshal(t *testing.T) {
-	g := new(G2).ScalarBaseMult(new(big.Int).SetInt64(1))
-	form := g.Marshal()
-	_, ok := new(G2).Unmarshal(form)
-	if !ok {
-		t.Fatalf("failed to unmarshal")
-	}
-
-	g.ScalarBaseMult(Order)
-	form = g.Marshal()
-	g2, ok := new(G2).Unmarshal(form)
-	if !ok {
-		t.Fatalf("failed to unmarshal ∞")
-	}
-	if !g2.p.IsInfinity() {
-		t.Fatalf("∞ unmarshaled incorrectly")
-	}
-}
-
-func TestG1Identity(t *testing.T) {
-	g := new(G1).ScalarBaseMult(new(big.Int).SetInt64(0))
-	if !g.p.IsInfinity() {
-		t.Error("failure")
-	}
-}
-
-func TestG2Identity(t *testing.T) {
-	g := new(G2).ScalarBaseMult(new(big.Int).SetInt64(0))
-	if !g.p.IsInfinity() {
-		t.Error("failure")
-	}
-}
-
-func TestTripartiteDiffieHellman(t *testing.T) {
-	a, _ := rand.Int(rand.Reader, Order)
-	b, _ := rand.Int(rand.Reader, Order)
-	c, _ := rand.Int(rand.Reader, Order)
-
-	pa, _ := new(G1).Unmarshal(new(G1).ScalarBaseMult(a).Marshal())
-	qa, _ := new(G2).Unmarshal(new(G2).ScalarBaseMult(a).Marshal())
-	pb, _ := new(G1).Unmarshal(new(G1).ScalarBaseMult(b).Marshal())
-	qb, _ := new(G2).Unmarshal(new(G2).ScalarBaseMult(b).Marshal())
-	pc, _ := new(G1).Unmarshal(new(G1).ScalarBaseMult(c).Marshal())
-	qc, _ := new(G2).Unmarshal(new(G2).ScalarBaseMult(c).Marshal())
-
-	k1 := Pair(pb, qc)
-	k1.ScalarMult(k1, a)
-	k1Bytes := k1.Marshal()
-
-	k2 := Pair(pc, qa)
-	k2.ScalarMult(k2, b)
-	k2Bytes := k2.Marshal()
-
-	k3 := Pair(pa, qb)
-	k3.ScalarMult(k3, c)
-	k3Bytes := k3.Marshal()
-
-	if !bytes.Equal(k1Bytes, k2Bytes) || !bytes.Equal(k2Bytes, k3Bytes) {
-		t.Errorf("keys didn't agree")
-	}
-}
-
-func BenchmarkPairing(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		Pair(&G1{curveGen}, &G2{twistGen})
-	}
-}
diff --git a/vendor/golang.org/x/crypto/bn256/constants.go b/vendor/golang.org/x/crypto/bn256/constants.go
deleted file mode 100644
index 1ccefc4..0000000
--- a/vendor/golang.org/x/crypto/bn256/constants.go
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-import (
-	"math/big"
-)
-
-func bigFromBase10(s string) *big.Int {
-	n, _ := new(big.Int).SetString(s, 10)
-	return n
-}
-
-// u is the BN parameter that determines the prime: 1868033³.
-var u = bigFromBase10("6518589491078791937")
-
-// p is a prime over which we form a basic field: 36u⁴+36u³+24u²+6u+1.
-var p = bigFromBase10("65000549695646603732796438742359905742825358107623003571877145026864184071783")
-
-// Order is the number of elements in both G₁ and G₂: 36u⁴+36u³+18u²+6u+1.
-var Order = bigFromBase10("65000549695646603732796438742359905742570406053903786389881062969044166799969")
-
-// xiToPMinus1Over6 is ξ^((p-1)/6) where ξ = i+3.
-var xiToPMinus1Over6 = &gfP2{bigFromBase10("8669379979083712429711189836753509758585994370025260553045152614783263110636"), bigFromBase10("19998038925833620163537568958541907098007303196759855091367510456613536016040")}
-
-// xiToPMinus1Over3 is ξ^((p-1)/3) where ξ = i+3.
-var xiToPMinus1Over3 = &gfP2{bigFromBase10("26098034838977895781559542626833399156321265654106457577426020397262786167059"), bigFromBase10("15931493369629630809226283458085260090334794394361662678240713231519278691715")}
-
-// xiToPMinus1Over2 is ξ^((p-1)/2) where ξ = i+3.
-var xiToPMinus1Over2 = &gfP2{bigFromBase10("50997318142241922852281555961173165965672272825141804376761836765206060036244"), bigFromBase10("38665955945962842195025998234511023902832543644254935982879660597356748036009")}
-
-// xiToPSquaredMinus1Over3 is ξ^((p²-1)/3) where ξ = i+3.
-var xiToPSquaredMinus1Over3 = bigFromBase10("65000549695646603727810655408050771481677621702948236658134783353303381437752")
-
-// xiTo2PSquaredMinus2Over3 is ξ^((2p²-2)/3) where ξ = i+3 (a cubic root of unity, mod p).
-var xiTo2PSquaredMinus2Over3 = bigFromBase10("4985783334309134261147736404674766913742361673560802634030")
-
-// xiToPSquaredMinus1Over6 is ξ^((1p²-1)/6) where ξ = i+3 (a cubic root of -1, mod p).
-var xiToPSquaredMinus1Over6 = bigFromBase10("65000549695646603727810655408050771481677621702948236658134783353303381437753")
-
-// xiTo2PMinus2Over3 is ξ^((2p-2)/3) where ξ = i+3.
-var xiTo2PMinus2Over3 = &gfP2{bigFromBase10("19885131339612776214803633203834694332692106372356013117629940868870585019582"), bigFromBase10("21645619881471562101905880913352894726728173167203616652430647841922248593627")}
diff --git a/vendor/golang.org/x/crypto/bn256/curve.go b/vendor/golang.org/x/crypto/bn256/curve.go
deleted file mode 100644
index 63c052b..0000000
--- a/vendor/golang.org/x/crypto/bn256/curve.go
+++ /dev/null
@@ -1,287 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-import (
-	"math/big"
-)
-
-// curvePoint implements the elliptic curve y²=x³+3. Points are kept in
-// Jacobian form and t=z² when valid. G₁ is the set of points of this curve on
-// GF(p).
-type curvePoint struct {
-	x, y, z, t *big.Int
-}
-
-var curveB = new(big.Int).SetInt64(3)
-
-// curveGen is the generator of G₁.
-var curveGen = &curvePoint{
-	new(big.Int).SetInt64(1),
-	new(big.Int).SetInt64(-2),
-	new(big.Int).SetInt64(1),
-	new(big.Int).SetInt64(1),
-}
-
-func newCurvePoint(pool *bnPool) *curvePoint {
-	return &curvePoint{
-		pool.Get(),
-		pool.Get(),
-		pool.Get(),
-		pool.Get(),
-	}
-}
-
-func (c *curvePoint) String() string {
-	c.MakeAffine(new(bnPool))
-	return "(" + c.x.String() + ", " + c.y.String() + ")"
-}
-
-func (c *curvePoint) Put(pool *bnPool) {
-	pool.Put(c.x)
-	pool.Put(c.y)
-	pool.Put(c.z)
-	pool.Put(c.t)
-}
-
-func (c *curvePoint) Set(a *curvePoint) {
-	c.x.Set(a.x)
-	c.y.Set(a.y)
-	c.z.Set(a.z)
-	c.t.Set(a.t)
-}
-
-// IsOnCurve returns true iff c is on the curve where c must be in affine form.
-func (c *curvePoint) IsOnCurve() bool {
-	yy := new(big.Int).Mul(c.y, c.y)
-	xxx := new(big.Int).Mul(c.x, c.x)
-	xxx.Mul(xxx, c.x)
-	yy.Sub(yy, xxx)
-	yy.Sub(yy, curveB)
-	if yy.Sign() < 0 || yy.Cmp(p) >= 0 {
-		yy.Mod(yy, p)
-	}
-	return yy.Sign() == 0
-}
-
-func (c *curvePoint) SetInfinity() {
-	c.z.SetInt64(0)
-}
-
-func (c *curvePoint) IsInfinity() bool {
-	return c.z.Sign() == 0
-}
-
-func (c *curvePoint) Add(a, b *curvePoint, pool *bnPool) {
-	if a.IsInfinity() {
-		c.Set(b)
-		return
-	}
-	if b.IsInfinity() {
-		c.Set(a)
-		return
-	}
-
-	// See http://hyperelliptic.org/EFD/g1p/auto-code/shortw/jacobian-0/addition/add-2007-bl.op3
-
-	// Normalize the points by replacing a = [x1:y1:z1] and b = [x2:y2:z2]
-	// by [u1:s1:z1·z2] and [u2:s2:z1·z2]
-	// where u1 = x1·z2², s1 = y1·z2³ and u1 = x2·z1², s2 = y2·z1³
-	z1z1 := pool.Get().Mul(a.z, a.z)
-	z1z1.Mod(z1z1, p)
-	z2z2 := pool.Get().Mul(b.z, b.z)
-	z2z2.Mod(z2z2, p)
-	u1 := pool.Get().Mul(a.x, z2z2)
-	u1.Mod(u1, p)
-	u2 := pool.Get().Mul(b.x, z1z1)
-	u2.Mod(u2, p)
-
-	t := pool.Get().Mul(b.z, z2z2)
-	t.Mod(t, p)
-	s1 := pool.Get().Mul(a.y, t)
-	s1.Mod(s1, p)
-
-	t.Mul(a.z, z1z1)
-	t.Mod(t, p)
-	s2 := pool.Get().Mul(b.y, t)
-	s2.Mod(s2, p)
-
-	// Compute x = (2h)²(s²-u1-u2)
-	// where s = (s2-s1)/(u2-u1) is the slope of the line through
-	// (u1,s1) and (u2,s2). The extra factor 2h = 2(u2-u1) comes from the value of z below.
-	// This is also:
-	// 4(s2-s1)² - 4h²(u1+u2) = 4(s2-s1)² - 4h³ - 4h²(2u1)
-	//                        = r² - j - 2v
-	// with the notations below.
-	h := pool.Get().Sub(u2, u1)
-	xEqual := h.Sign() == 0
-
-	t.Add(h, h)
-	// i = 4h²
-	i := pool.Get().Mul(t, t)
-	i.Mod(i, p)
-	// j = 4h³
-	j := pool.Get().Mul(h, i)
-	j.Mod(j, p)
-
-	t.Sub(s2, s1)
-	yEqual := t.Sign() == 0
-	if xEqual && yEqual {
-		c.Double(a, pool)
-		return
-	}
-	r := pool.Get().Add(t, t)
-
-	v := pool.Get().Mul(u1, i)
-	v.Mod(v, p)
-
-	// t4 = 4(s2-s1)²
-	t4 := pool.Get().Mul(r, r)
-	t4.Mod(t4, p)
-	t.Add(v, v)
-	t6 := pool.Get().Sub(t4, j)
-	c.x.Sub(t6, t)
-
-	// Set y = -(2h)³(s1 + s*(x/4h²-u1))
-	// This is also
-	// y = - 2·s1·j - (s2-s1)(2x - 2i·u1) = r(v-x) - 2·s1·j
-	t.Sub(v, c.x) // t7
-	t4.Mul(s1, j) // t8
-	t4.Mod(t4, p)
-	t6.Add(t4, t4) // t9
-	t4.Mul(r, t)   // t10
-	t4.Mod(t4, p)
-	c.y.Sub(t4, t6)
-
-	// Set z = 2(u2-u1)·z1·z2 = 2h·z1·z2
-	t.Add(a.z, b.z) // t11
-	t4.Mul(t, t)    // t12
-	t4.Mod(t4, p)
-	t.Sub(t4, z1z1) // t13
-	t4.Sub(t, z2z2) // t14
-	c.z.Mul(t4, h)
-	c.z.Mod(c.z, p)
-
-	pool.Put(z1z1)
-	pool.Put(z2z2)
-	pool.Put(u1)
-	pool.Put(u2)
-	pool.Put(t)
-	pool.Put(s1)
-	pool.Put(s2)
-	pool.Put(h)
-	pool.Put(i)
-	pool.Put(j)
-	pool.Put(r)
-	pool.Put(v)
-	pool.Put(t4)
-	pool.Put(t6)
-}
-
-func (c *curvePoint) Double(a *curvePoint, pool *bnPool) {
-	// See http://hyperelliptic.org/EFD/g1p/auto-code/shortw/jacobian-0/doubling/dbl-2009-l.op3
-	A := pool.Get().Mul(a.x, a.x)
-	A.Mod(A, p)
-	B := pool.Get().Mul(a.y, a.y)
-	B.Mod(B, p)
-	C := pool.Get().Mul(B, B)
-	C.Mod(C, p)
-
-	t := pool.Get().Add(a.x, B)
-	t2 := pool.Get().Mul(t, t)
-	t2.Mod(t2, p)
-	t.Sub(t2, A)
-	t2.Sub(t, C)
-	d := pool.Get().Add(t2, t2)
-	t.Add(A, A)
-	e := pool.Get().Add(t, A)
-	f := pool.Get().Mul(e, e)
-	f.Mod(f, p)
-
-	t.Add(d, d)
-	c.x.Sub(f, t)
-
-	t.Add(C, C)
-	t2.Add(t, t)
-	t.Add(t2, t2)
-	c.y.Sub(d, c.x)
-	t2.Mul(e, c.y)
-	t2.Mod(t2, p)
-	c.y.Sub(t2, t)
-
-	t.Mul(a.y, a.z)
-	t.Mod(t, p)
-	c.z.Add(t, t)
-
-	pool.Put(A)
-	pool.Put(B)
-	pool.Put(C)
-	pool.Put(t)
-	pool.Put(t2)
-	pool.Put(d)
-	pool.Put(e)
-	pool.Put(f)
-}
-
-func (c *curvePoint) Mul(a *curvePoint, scalar *big.Int, pool *bnPool) *curvePoint {
-	sum := newCurvePoint(pool)
-	sum.SetInfinity()
-	t := newCurvePoint(pool)
-
-	for i := scalar.BitLen(); i >= 0; i-- {
-		t.Double(sum, pool)
-		if scalar.Bit(i) != 0 {
-			sum.Add(t, a, pool)
-		} else {
-			sum.Set(t)
-		}
-	}
-
-	c.Set(sum)
-	sum.Put(pool)
-	t.Put(pool)
-	return c
-}
-
-// MakeAffine converts c to affine form and returns c. If c is ∞, then it sets
-// c to 0 : 1 : 0.
-func (c *curvePoint) MakeAffine(pool *bnPool) *curvePoint {
-	if words := c.z.Bits(); len(words) == 1 && words[0] == 1 {
-		return c
-	}
-	if c.IsInfinity() {
-		c.x.SetInt64(0)
-		c.y.SetInt64(1)
-		c.z.SetInt64(0)
-		c.t.SetInt64(0)
-		return c
-	}
-
-	zInv := pool.Get().ModInverse(c.z, p)
-	t := pool.Get().Mul(c.y, zInv)
-	t.Mod(t, p)
-	zInv2 := pool.Get().Mul(zInv, zInv)
-	zInv2.Mod(zInv2, p)
-	c.y.Mul(t, zInv2)
-	c.y.Mod(c.y, p)
-	t.Mul(c.x, zInv2)
-	t.Mod(t, p)
-	c.x.Set(t)
-	c.z.SetInt64(1)
-	c.t.SetInt64(1)
-
-	pool.Put(zInv)
-	pool.Put(t)
-	pool.Put(zInv2)
-
-	return c
-}
-
-func (c *curvePoint) Negative(a *curvePoint) {
-	c.x.Set(a.x)
-	c.y.Neg(a.y)
-	c.z.Set(a.z)
-	c.t.SetInt64(0)
-}
diff --git a/vendor/golang.org/x/crypto/bn256/example_test.go b/vendor/golang.org/x/crypto/bn256/example_test.go
deleted file mode 100644
index b2d1980..0000000
--- a/vendor/golang.org/x/crypto/bn256/example_test.go
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-import (
-	"crypto/rand"
-)
-
-func ExamplePair() {
-	// This implements the tripartite Diffie-Hellman algorithm from "A One
-	// Round Protocol for Tripartite Diffie-Hellman", A. Joux.
-	// http://www.springerlink.com/content/cddc57yyva0hburb/fulltext.pdf
-
-	// Each of three parties, a, b and c, generate a private value.
-	a, _ := rand.Int(rand.Reader, Order)
-	b, _ := rand.Int(rand.Reader, Order)
-	c, _ := rand.Int(rand.Reader, Order)
-
-	// Then each party calculates g₁ and g₂ times their private value.
-	pa := new(G1).ScalarBaseMult(a)
-	qa := new(G2).ScalarBaseMult(a)
-
-	pb := new(G1).ScalarBaseMult(b)
-	qb := new(G2).ScalarBaseMult(b)
-
-	pc := new(G1).ScalarBaseMult(c)
-	qc := new(G2).ScalarBaseMult(c)
-
-	// Now each party exchanges its public values with the other two and
-	// all parties can calculate the shared key.
-	k1 := Pair(pb, qc)
-	k1.ScalarMult(k1, a)
-
-	k2 := Pair(pc, qa)
-	k2.ScalarMult(k2, b)
-
-	k3 := Pair(pa, qb)
-	k3.ScalarMult(k3, c)
-
-	// k1, k2 and k3 will all be equal.
-}
diff --git a/vendor/golang.org/x/crypto/bn256/gfp12.go b/vendor/golang.org/x/crypto/bn256/gfp12.go
deleted file mode 100644
index f084edd..0000000
--- a/vendor/golang.org/x/crypto/bn256/gfp12.go
+++ /dev/null
@@ -1,200 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-// For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
-// http://eprint.iacr.org/2006/471.pdf.
-
-import (
-	"math/big"
-)
-
-// gfP12 implements the field of size p¹² as a quadratic extension of gfP6
-// where ω²=τ.
-type gfP12 struct {
-	x, y *gfP6 // value is xω + y
-}
-
-func newGFp12(pool *bnPool) *gfP12 {
-	return &gfP12{newGFp6(pool), newGFp6(pool)}
-}
-
-func (e *gfP12) String() string {
-	return "(" + e.x.String() + "," + e.y.String() + ")"
-}
-
-func (e *gfP12) Put(pool *bnPool) {
-	e.x.Put(pool)
-	e.y.Put(pool)
-}
-
-func (e *gfP12) Set(a *gfP12) *gfP12 {
-	e.x.Set(a.x)
-	e.y.Set(a.y)
-	return e
-}
-
-func (e *gfP12) SetZero() *gfP12 {
-	e.x.SetZero()
-	e.y.SetZero()
-	return e
-}
-
-func (e *gfP12) SetOne() *gfP12 {
-	e.x.SetZero()
-	e.y.SetOne()
-	return e
-}
-
-func (e *gfP12) Minimal() {
-	e.x.Minimal()
-	e.y.Minimal()
-}
-
-func (e *gfP12) IsZero() bool {
-	e.Minimal()
-	return e.x.IsZero() && e.y.IsZero()
-}
-
-func (e *gfP12) IsOne() bool {
-	e.Minimal()
-	return e.x.IsZero() && e.y.IsOne()
-}
-
-func (e *gfP12) Conjugate(a *gfP12) *gfP12 {
-	e.x.Negative(a.x)
-	e.y.Set(a.y)
-	return a
-}
-
-func (e *gfP12) Negative(a *gfP12) *gfP12 {
-	e.x.Negative(a.x)
-	e.y.Negative(a.y)
-	return e
-}
-
-// Frobenius computes (xω+y)^p = x^p ω·ξ^((p-1)/6) + y^p
-func (e *gfP12) Frobenius(a *gfP12, pool *bnPool) *gfP12 {
-	e.x.Frobenius(a.x, pool)
-	e.y.Frobenius(a.y, pool)
-	e.x.MulScalar(e.x, xiToPMinus1Over6, pool)
-	return e
-}
-
-// FrobeniusP2 computes (xω+y)^p² = x^p² ω·ξ^((p²-1)/6) + y^p²
-func (e *gfP12) FrobeniusP2(a *gfP12, pool *bnPool) *gfP12 {
-	e.x.FrobeniusP2(a.x)
-	e.x.MulGFP(e.x, xiToPSquaredMinus1Over6)
-	e.y.FrobeniusP2(a.y)
-	return e
-}
-
-func (e *gfP12) Add(a, b *gfP12) *gfP12 {
-	e.x.Add(a.x, b.x)
-	e.y.Add(a.y, b.y)
-	return e
-}
-
-func (e *gfP12) Sub(a, b *gfP12) *gfP12 {
-	e.x.Sub(a.x, b.x)
-	e.y.Sub(a.y, b.y)
-	return e
-}
-
-func (e *gfP12) Mul(a, b *gfP12, pool *bnPool) *gfP12 {
-	tx := newGFp6(pool)
-	tx.Mul(a.x, b.y, pool)
-	t := newGFp6(pool)
-	t.Mul(b.x, a.y, pool)
-	tx.Add(tx, t)
-
-	ty := newGFp6(pool)
-	ty.Mul(a.y, b.y, pool)
-	t.Mul(a.x, b.x, pool)
-	t.MulTau(t, pool)
-	e.y.Add(ty, t)
-	e.x.Set(tx)
-
-	tx.Put(pool)
-	ty.Put(pool)
-	t.Put(pool)
-	return e
-}
-
-func (e *gfP12) MulScalar(a *gfP12, b *gfP6, pool *bnPool) *gfP12 {
-	e.x.Mul(e.x, b, pool)
-	e.y.Mul(e.y, b, pool)
-	return e
-}
-
-func (c *gfP12) Exp(a *gfP12, power *big.Int, pool *bnPool) *gfP12 {
-	sum := newGFp12(pool)
-	sum.SetOne()
-	t := newGFp12(pool)
-
-	for i := power.BitLen() - 1; i >= 0; i-- {
-		t.Square(sum, pool)
-		if power.Bit(i) != 0 {
-			sum.Mul(t, a, pool)
-		} else {
-			sum.Set(t)
-		}
-	}
-
-	c.Set(sum)
-
-	sum.Put(pool)
-	t.Put(pool)
-
-	return c
-}
-
-func (e *gfP12) Square(a *gfP12, pool *bnPool) *gfP12 {
-	// Complex squaring algorithm
-	v0 := newGFp6(pool)
-	v0.Mul(a.x, a.y, pool)
-
-	t := newGFp6(pool)
-	t.MulTau(a.x, pool)
-	t.Add(a.y, t)
-	ty := newGFp6(pool)
-	ty.Add(a.x, a.y)
-	ty.Mul(ty, t, pool)
-	ty.Sub(ty, v0)
-	t.MulTau(v0, pool)
-	ty.Sub(ty, t)
-
-	e.y.Set(ty)
-	e.x.Double(v0)
-
-	v0.Put(pool)
-	t.Put(pool)
-	ty.Put(pool)
-
-	return e
-}
-
-func (e *gfP12) Invert(a *gfP12, pool *bnPool) *gfP12 {
-	// See "Implementing cryptographic pairings", M. Scott, section 3.2.
-	// ftp://136.206.11.249/pub/crypto/pairings.pdf
-	t1 := newGFp6(pool)
-	t2 := newGFp6(pool)
-
-	t1.Square(a.x, pool)
-	t2.Square(a.y, pool)
-	t1.MulTau(t1, pool)
-	t1.Sub(t2, t1)
-	t2.Invert(t1, pool)
-
-	e.x.Negative(a.x)
-	e.y.Set(a.y)
-	e.MulScalar(e, t2, pool)
-
-	t1.Put(pool)
-	t2.Put(pool)
-
-	return e
-}
diff --git a/vendor/golang.org/x/crypto/bn256/gfp2.go b/vendor/golang.org/x/crypto/bn256/gfp2.go
deleted file mode 100644
index 97f3f1f..0000000
--- a/vendor/golang.org/x/crypto/bn256/gfp2.go
+++ /dev/null
@@ -1,219 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-// For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
-// http://eprint.iacr.org/2006/471.pdf.
-
-import (
-	"math/big"
-)
-
-// gfP2 implements a field of size p² as a quadratic extension of the base
-// field where i²=-1.
-type gfP2 struct {
-	x, y *big.Int // value is xi+y.
-}
-
-func newGFp2(pool *bnPool) *gfP2 {
-	return &gfP2{pool.Get(), pool.Get()}
-}
-
-func (e *gfP2) String() string {
-	x := new(big.Int).Mod(e.x, p)
-	y := new(big.Int).Mod(e.y, p)
-	return "(" + x.String() + "," + y.String() + ")"
-}
-
-func (e *gfP2) Put(pool *bnPool) {
-	pool.Put(e.x)
-	pool.Put(e.y)
-}
-
-func (e *gfP2) Set(a *gfP2) *gfP2 {
-	e.x.Set(a.x)
-	e.y.Set(a.y)
-	return e
-}
-
-func (e *gfP2) SetZero() *gfP2 {
-	e.x.SetInt64(0)
-	e.y.SetInt64(0)
-	return e
-}
-
-func (e *gfP2) SetOne() *gfP2 {
-	e.x.SetInt64(0)
-	e.y.SetInt64(1)
-	return e
-}
-
-func (e *gfP2) Minimal() {
-	if e.x.Sign() < 0 || e.x.Cmp(p) >= 0 {
-		e.x.Mod(e.x, p)
-	}
-	if e.y.Sign() < 0 || e.y.Cmp(p) >= 0 {
-		e.y.Mod(e.y, p)
-	}
-}
-
-func (e *gfP2) IsZero() bool {
-	return e.x.Sign() == 0 && e.y.Sign() == 0
-}
-
-func (e *gfP2) IsOne() bool {
-	if e.x.Sign() != 0 {
-		return false
-	}
-	words := e.y.Bits()
-	return len(words) == 1 && words[0] == 1
-}
-
-func (e *gfP2) Conjugate(a *gfP2) *gfP2 {
-	e.y.Set(a.y)
-	e.x.Neg(a.x)
-	return e
-}
-
-func (e *gfP2) Negative(a *gfP2) *gfP2 {
-	e.x.Neg(a.x)
-	e.y.Neg(a.y)
-	return e
-}
-
-func (e *gfP2) Add(a, b *gfP2) *gfP2 {
-	e.x.Add(a.x, b.x)
-	e.y.Add(a.y, b.y)
-	return e
-}
-
-func (e *gfP2) Sub(a, b *gfP2) *gfP2 {
-	e.x.Sub(a.x, b.x)
-	e.y.Sub(a.y, b.y)
-	return e
-}
-
-func (e *gfP2) Double(a *gfP2) *gfP2 {
-	e.x.Lsh(a.x, 1)
-	e.y.Lsh(a.y, 1)
-	return e
-}
-
-func (c *gfP2) Exp(a *gfP2, power *big.Int, pool *bnPool) *gfP2 {
-	sum := newGFp2(pool)
-	sum.SetOne()
-	t := newGFp2(pool)
-
-	for i := power.BitLen() - 1; i >= 0; i-- {
-		t.Square(sum, pool)
-		if power.Bit(i) != 0 {
-			sum.Mul(t, a, pool)
-		} else {
-			sum.Set(t)
-		}
-	}
-
-	c.Set(sum)
-
-	sum.Put(pool)
-	t.Put(pool)
-
-	return c
-}
-
-// See "Multiplication and Squaring in Pairing-Friendly Fields",
-// http://eprint.iacr.org/2006/471.pdf
-func (e *gfP2) Mul(a, b *gfP2, pool *bnPool) *gfP2 {
-	tx := pool.Get().Mul(a.x, b.y)
-	t := pool.Get().Mul(b.x, a.y)
-	tx.Add(tx, t)
-	tx.Mod(tx, p)
-
-	ty := pool.Get().Mul(a.y, b.y)
-	t.Mul(a.x, b.x)
-	ty.Sub(ty, t)
-	e.y.Mod(ty, p)
-	e.x.Set(tx)
-
-	pool.Put(tx)
-	pool.Put(ty)
-	pool.Put(t)
-
-	return e
-}
-
-func (e *gfP2) MulScalar(a *gfP2, b *big.Int) *gfP2 {
-	e.x.Mul(a.x, b)
-	e.y.Mul(a.y, b)
-	return e
-}
-
-// MulXi sets e=ξa where ξ=i+3 and then returns e.
-func (e *gfP2) MulXi(a *gfP2, pool *bnPool) *gfP2 {
-	// (xi+y)(i+3) = (3x+y)i+(3y-x)
-	tx := pool.Get().Lsh(a.x, 1)
-	tx.Add(tx, a.x)
-	tx.Add(tx, a.y)
-
-	ty := pool.Get().Lsh(a.y, 1)
-	ty.Add(ty, a.y)
-	ty.Sub(ty, a.x)
-
-	e.x.Set(tx)
-	e.y.Set(ty)
-
-	pool.Put(tx)
-	pool.Put(ty)
-
-	return e
-}
-
-func (e *gfP2) Square(a *gfP2, pool *bnPool) *gfP2 {
-	// Complex squaring algorithm:
-	// (xi+b)² = (x+y)(y-x) + 2*i*x*y
-	t1 := pool.Get().Sub(a.y, a.x)
-	t2 := pool.Get().Add(a.x, a.y)
-	ty := pool.Get().Mul(t1, t2)
-	ty.Mod(ty, p)
-
-	t1.Mul(a.x, a.y)
-	t1.Lsh(t1, 1)
-
-	e.x.Mod(t1, p)
-	e.y.Set(ty)
-
-	pool.Put(t1)
-	pool.Put(t2)
-	pool.Put(ty)
-
-	return e
-}
-
-func (e *gfP2) Invert(a *gfP2, pool *bnPool) *gfP2 {
-	// See "Implementing cryptographic pairings", M. Scott, section 3.2.
-	// ftp://136.206.11.249/pub/crypto/pairings.pdf
-	t := pool.Get()
-	t.Mul(a.y, a.y)
-	t2 := pool.Get()
-	t2.Mul(a.x, a.x)
-	t.Add(t, t2)
-
-	inv := pool.Get()
-	inv.ModInverse(t, p)
-
-	e.x.Neg(a.x)
-	e.x.Mul(e.x, inv)
-	e.x.Mod(e.x, p)
-
-	e.y.Mul(a.y, inv)
-	e.y.Mod(e.y, p)
-
-	pool.Put(t)
-	pool.Put(t2)
-	pool.Put(inv)
-
-	return e
-}
diff --git a/vendor/golang.org/x/crypto/bn256/gfp6.go b/vendor/golang.org/x/crypto/bn256/gfp6.go
deleted file mode 100644
index f98ae78..0000000
--- a/vendor/golang.org/x/crypto/bn256/gfp6.go
+++ /dev/null
@@ -1,296 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-// For details of the algorithms used, see "Multiplication and Squaring on
-// Pairing-Friendly Fields, Devegili et al.
-// http://eprint.iacr.org/2006/471.pdf.
-
-import (
-	"math/big"
-)
-
-// gfP6 implements the field of size p⁶ as a cubic extension of gfP2 where τ³=ξ
-// and ξ=i+3.
-type gfP6 struct {
-	x, y, z *gfP2 // value is xτ² + yτ + z
-}
-
-func newGFp6(pool *bnPool) *gfP6 {
-	return &gfP6{newGFp2(pool), newGFp2(pool), newGFp2(pool)}
-}
-
-func (e *gfP6) String() string {
-	return "(" + e.x.String() + "," + e.y.String() + "," + e.z.String() + ")"
-}
-
-func (e *gfP6) Put(pool *bnPool) {
-	e.x.Put(pool)
-	e.y.Put(pool)
-	e.z.Put(pool)
-}
-
-func (e *gfP6) Set(a *gfP6) *gfP6 {
-	e.x.Set(a.x)
-	e.y.Set(a.y)
-	e.z.Set(a.z)
-	return e
-}
-
-func (e *gfP6) SetZero() *gfP6 {
-	e.x.SetZero()
-	e.y.SetZero()
-	e.z.SetZero()
-	return e
-}
-
-func (e *gfP6) SetOne() *gfP6 {
-	e.x.SetZero()
-	e.y.SetZero()
-	e.z.SetOne()
-	return e
-}
-
-func (e *gfP6) Minimal() {
-	e.x.Minimal()
-	e.y.Minimal()
-	e.z.Minimal()
-}
-
-func (e *gfP6) IsZero() bool {
-	return e.x.IsZero() && e.y.IsZero() && e.z.IsZero()
-}
-
-func (e *gfP6) IsOne() bool {
-	return e.x.IsZero() && e.y.IsZero() && e.z.IsOne()
-}
-
-func (e *gfP6) Negative(a *gfP6) *gfP6 {
-	e.x.Negative(a.x)
-	e.y.Negative(a.y)
-	e.z.Negative(a.z)
-	return e
-}
-
-func (e *gfP6) Frobenius(a *gfP6, pool *bnPool) *gfP6 {
-	e.x.Conjugate(a.x)
-	e.y.Conjugate(a.y)
-	e.z.Conjugate(a.z)
-
-	e.x.Mul(e.x, xiTo2PMinus2Over3, pool)
-	e.y.Mul(e.y, xiToPMinus1Over3, pool)
-	return e
-}
-
-// FrobeniusP2 computes (xτ²+yτ+z)^(p²) = xτ^(2p²) + yτ^(p²) + z
-func (e *gfP6) FrobeniusP2(a *gfP6) *gfP6 {
-	// τ^(2p²) = τ²τ^(2p²-2) = τ²ξ^((2p²-2)/3)
-	e.x.MulScalar(a.x, xiTo2PSquaredMinus2Over3)
-	// τ^(p²) = ττ^(p²-1) = τξ^((p²-1)/3)
-	e.y.MulScalar(a.y, xiToPSquaredMinus1Over3)
-	e.z.Set(a.z)
-	return e
-}
-
-func (e *gfP6) Add(a, b *gfP6) *gfP6 {
-	e.x.Add(a.x, b.x)
-	e.y.Add(a.y, b.y)
-	e.z.Add(a.z, b.z)
-	return e
-}
-
-func (e *gfP6) Sub(a, b *gfP6) *gfP6 {
-	e.x.Sub(a.x, b.x)
-	e.y.Sub(a.y, b.y)
-	e.z.Sub(a.z, b.z)
-	return e
-}
-
-func (e *gfP6) Double(a *gfP6) *gfP6 {
-	e.x.Double(a.x)
-	e.y.Double(a.y)
-	e.z.Double(a.z)
-	return e
-}
-
-func (e *gfP6) Mul(a, b *gfP6, pool *bnPool) *gfP6 {
-	// "Multiplication and Squaring on Pairing-Friendly Fields"
-	// Section 4, Karatsuba method.
-	// http://eprint.iacr.org/2006/471.pdf
-
-	v0 := newGFp2(pool)
-	v0.Mul(a.z, b.z, pool)
-	v1 := newGFp2(pool)
-	v1.Mul(a.y, b.y, pool)
-	v2 := newGFp2(pool)
-	v2.Mul(a.x, b.x, pool)
-
-	t0 := newGFp2(pool)
-	t0.Add(a.x, a.y)
-	t1 := newGFp2(pool)
-	t1.Add(b.x, b.y)
-	tz := newGFp2(pool)
-	tz.Mul(t0, t1, pool)
-
-	tz.Sub(tz, v1)
-	tz.Sub(tz, v2)
-	tz.MulXi(tz, pool)
-	tz.Add(tz, v0)
-
-	t0.Add(a.y, a.z)
-	t1.Add(b.y, b.z)
-	ty := newGFp2(pool)
-	ty.Mul(t0, t1, pool)
-	ty.Sub(ty, v0)
-	ty.Sub(ty, v1)
-	t0.MulXi(v2, pool)
-	ty.Add(ty, t0)
-
-	t0.Add(a.x, a.z)
-	t1.Add(b.x, b.z)
-	tx := newGFp2(pool)
-	tx.Mul(t0, t1, pool)
-	tx.Sub(tx, v0)
-	tx.Add(tx, v1)
-	tx.Sub(tx, v2)
-
-	e.x.Set(tx)
-	e.y.Set(ty)
-	e.z.Set(tz)
-
-	t0.Put(pool)
-	t1.Put(pool)
-	tx.Put(pool)
-	ty.Put(pool)
-	tz.Put(pool)
-	v0.Put(pool)
-	v1.Put(pool)
-	v2.Put(pool)
-	return e
-}
-
-func (e *gfP6) MulScalar(a *gfP6, b *gfP2, pool *bnPool) *gfP6 {
-	e.x.Mul(a.x, b, pool)
-	e.y.Mul(a.y, b, pool)
-	e.z.Mul(a.z, b, pool)
-	return e
-}
-
-func (e *gfP6) MulGFP(a *gfP6, b *big.Int) *gfP6 {
-	e.x.MulScalar(a.x, b)
-	e.y.MulScalar(a.y, b)
-	e.z.MulScalar(a.z, b)
-	return e
-}
-
-// MulTau computes τ·(aτ²+bτ+c) = bτ²+cτ+aξ
-func (e *gfP6) MulTau(a *gfP6, pool *bnPool) {
-	tz := newGFp2(pool)
-	tz.MulXi(a.x, pool)
-	ty := newGFp2(pool)
-	ty.Set(a.y)
-	e.y.Set(a.z)
-	e.x.Set(ty)
-	e.z.Set(tz)
-	tz.Put(pool)
-	ty.Put(pool)
-}
-
-func (e *gfP6) Square(a *gfP6, pool *bnPool) *gfP6 {
-	v0 := newGFp2(pool).Square(a.z, pool)
-	v1 := newGFp2(pool).Square(a.y, pool)
-	v2 := newGFp2(pool).Square(a.x, pool)
-
-	c0 := newGFp2(pool).Add(a.x, a.y)
-	c0.Square(c0, pool)
-	c0.Sub(c0, v1)
-	c0.Sub(c0, v2)
-	c0.MulXi(c0, pool)
-	c0.Add(c0, v0)
-
-	c1 := newGFp2(pool).Add(a.y, a.z)
-	c1.Square(c1, pool)
-	c1.Sub(c1, v0)
-	c1.Sub(c1, v1)
-	xiV2 := newGFp2(pool).MulXi(v2, pool)
-	c1.Add(c1, xiV2)
-
-	c2 := newGFp2(pool).Add(a.x, a.z)
-	c2.Square(c2, pool)
-	c2.Sub(c2, v0)
-	c2.Add(c2, v1)
-	c2.Sub(c2, v2)
-
-	e.x.Set(c2)
-	e.y.Set(c1)
-	e.z.Set(c0)
-
-	v0.Put(pool)
-	v1.Put(pool)
-	v2.Put(pool)
-	c0.Put(pool)
-	c1.Put(pool)
-	c2.Put(pool)
-	xiV2.Put(pool)
-
-	return e
-}
-
-func (e *gfP6) Invert(a *gfP6, pool *bnPool) *gfP6 {
-	// See "Implementing cryptographic pairings", M. Scott, section 3.2.
-	// ftp://136.206.11.249/pub/crypto/pairings.pdf
-
-	// Here we can give a short explanation of how it works: let j be a cubic root of
-	// unity in GF(p²) so that 1+j+j²=0.
-	// Then (xτ² + yτ + z)(xj²τ² + yjτ + z)(xjτ² + yj²τ + z)
-	// = (xτ² + yτ + z)(Cτ²+Bτ+A)
-	// = (x³ξ²+y³ξ+z³-3ξxyz) = F is an element of the base field (the norm).
-	//
-	// On the other hand (xj²τ² + yjτ + z)(xjτ² + yj²τ + z)
-	// = τ²(y²-ξxz) + τ(ξx²-yz) + (z²-ξxy)
-	//
-	// So that's why A = (z²-ξxy), B = (ξx²-yz), C = (y²-ξxz)
-	t1 := newGFp2(pool)
-
-	A := newGFp2(pool)
-	A.Square(a.z, pool)
-	t1.Mul(a.x, a.y, pool)
-	t1.MulXi(t1, pool)
-	A.Sub(A, t1)
-
-	B := newGFp2(pool)
-	B.Square(a.x, pool)
-	B.MulXi(B, pool)
-	t1.Mul(a.y, a.z, pool)
-	B.Sub(B, t1)
-
-	C := newGFp2(pool)
-	C.Square(a.y, pool)
-	t1.Mul(a.x, a.z, pool)
-	C.Sub(C, t1)
-
-	F := newGFp2(pool)
-	F.Mul(C, a.y, pool)
-	F.MulXi(F, pool)
-	t1.Mul(A, a.z, pool)
-	F.Add(F, t1)
-	t1.Mul(B, a.x, pool)
-	t1.MulXi(t1, pool)
-	F.Add(F, t1)
-
-	F.Invert(F, pool)
-
-	e.x.Mul(C, F, pool)
-	e.y.Mul(B, F, pool)
-	e.z.Mul(A, F, pool)
-
-	t1.Put(pool)
-	A.Put(pool)
-	B.Put(pool)
-	C.Put(pool)
-	F.Put(pool)
-
-	return e
-}
diff --git a/vendor/golang.org/x/crypto/bn256/optate.go b/vendor/golang.org/x/crypto/bn256/optate.go
deleted file mode 100644
index 7ae0746..0000000
--- a/vendor/golang.org/x/crypto/bn256/optate.go
+++ /dev/null
@@ -1,395 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-func lineFunctionAdd(r, p *twistPoint, q *curvePoint, r2 *gfP2, pool *bnPool) (a, b, c *gfP2, rOut *twistPoint) {
-	// See the mixed addition algorithm from "Faster Computation of the
-	// Tate Pairing", http://arxiv.org/pdf/0904.0854v3.pdf
-
-	B := newGFp2(pool).Mul(p.x, r.t, pool)
-
-	D := newGFp2(pool).Add(p.y, r.z)
-	D.Square(D, pool)
-	D.Sub(D, r2)
-	D.Sub(D, r.t)
-	D.Mul(D, r.t, pool)
-
-	H := newGFp2(pool).Sub(B, r.x)
-	I := newGFp2(pool).Square(H, pool)
-
-	E := newGFp2(pool).Add(I, I)
-	E.Add(E, E)
-
-	J := newGFp2(pool).Mul(H, E, pool)
-
-	L1 := newGFp2(pool).Sub(D, r.y)
-	L1.Sub(L1, r.y)
-
-	V := newGFp2(pool).Mul(r.x, E, pool)
-
-	rOut = newTwistPoint(pool)
-	rOut.x.Square(L1, pool)
-	rOut.x.Sub(rOut.x, J)
-	rOut.x.Sub(rOut.x, V)
-	rOut.x.Sub(rOut.x, V)
-
-	rOut.z.Add(r.z, H)
-	rOut.z.Square(rOut.z, pool)
-	rOut.z.Sub(rOut.z, r.t)
-	rOut.z.Sub(rOut.z, I)
-
-	t := newGFp2(pool).Sub(V, rOut.x)
-	t.Mul(t, L1, pool)
-	t2 := newGFp2(pool).Mul(r.y, J, pool)
-	t2.Add(t2, t2)
-	rOut.y.Sub(t, t2)
-
-	rOut.t.Square(rOut.z, pool)
-
-	t.Add(p.y, rOut.z)
-	t.Square(t, pool)
-	t.Sub(t, r2)
-	t.Sub(t, rOut.t)
-
-	t2.Mul(L1, p.x, pool)
-	t2.Add(t2, t2)
-	a = newGFp2(pool)
-	a.Sub(t2, t)
-
-	c = newGFp2(pool)
-	c.MulScalar(rOut.z, q.y)
-	c.Add(c, c)
-
-	b = newGFp2(pool)
-	b.SetZero()
-	b.Sub(b, L1)
-	b.MulScalar(b, q.x)
-	b.Add(b, b)
-
-	B.Put(pool)
-	D.Put(pool)
-	H.Put(pool)
-	I.Put(pool)
-	E.Put(pool)
-	J.Put(pool)
-	L1.Put(pool)
-	V.Put(pool)
-	t.Put(pool)
-	t2.Put(pool)
-
-	return
-}
-
-func lineFunctionDouble(r *twistPoint, q *curvePoint, pool *bnPool) (a, b, c *gfP2, rOut *twistPoint) {
-	// See the doubling algorithm for a=0 from "Faster Computation of the
-	// Tate Pairing", http://arxiv.org/pdf/0904.0854v3.pdf
-
-	A := newGFp2(pool).Square(r.x, pool)
-	B := newGFp2(pool).Square(r.y, pool)
-	C := newGFp2(pool).Square(B, pool)
-
-	D := newGFp2(pool).Add(r.x, B)
-	D.Square(D, pool)
-	D.Sub(D, A)
-	D.Sub(D, C)
-	D.Add(D, D)
-
-	E := newGFp2(pool).Add(A, A)
-	E.Add(E, A)
-
-	G := newGFp2(pool).Square(E, pool)
-
-	rOut = newTwistPoint(pool)
-	rOut.x.Sub(G, D)
-	rOut.x.Sub(rOut.x, D)
-
-	rOut.z.Add(r.y, r.z)
-	rOut.z.Square(rOut.z, pool)
-	rOut.z.Sub(rOut.z, B)
-	rOut.z.Sub(rOut.z, r.t)
-
-	rOut.y.Sub(D, rOut.x)
-	rOut.y.Mul(rOut.y, E, pool)
-	t := newGFp2(pool).Add(C, C)
-	t.Add(t, t)
-	t.Add(t, t)
-	rOut.y.Sub(rOut.y, t)
-
-	rOut.t.Square(rOut.z, pool)
-
-	t.Mul(E, r.t, pool)
-	t.Add(t, t)
-	b = newGFp2(pool)
-	b.SetZero()
-	b.Sub(b, t)
-	b.MulScalar(b, q.x)
-
-	a = newGFp2(pool)
-	a.Add(r.x, E)
-	a.Square(a, pool)
-	a.Sub(a, A)
-	a.Sub(a, G)
-	t.Add(B, B)
-	t.Add(t, t)
-	a.Sub(a, t)
-
-	c = newGFp2(pool)
-	c.Mul(rOut.z, r.t, pool)
-	c.Add(c, c)
-	c.MulScalar(c, q.y)
-
-	A.Put(pool)
-	B.Put(pool)
-	C.Put(pool)
-	D.Put(pool)
-	E.Put(pool)
-	G.Put(pool)
-	t.Put(pool)
-
-	return
-}
-
-func mulLine(ret *gfP12, a, b, c *gfP2, pool *bnPool) {
-	a2 := newGFp6(pool)
-	a2.x.SetZero()
-	a2.y.Set(a)
-	a2.z.Set(b)
-	a2.Mul(a2, ret.x, pool)
-	t3 := newGFp6(pool).MulScalar(ret.y, c, pool)
-
-	t := newGFp2(pool)
-	t.Add(b, c)
-	t2 := newGFp6(pool)
-	t2.x.SetZero()
-	t2.y.Set(a)
-	t2.z.Set(t)
-	ret.x.Add(ret.x, ret.y)
-
-	ret.y.Set(t3)
-
-	ret.x.Mul(ret.x, t2, pool)
-	ret.x.Sub(ret.x, a2)
-	ret.x.Sub(ret.x, ret.y)
-	a2.MulTau(a2, pool)
-	ret.y.Add(ret.y, a2)
-
-	a2.Put(pool)
-	t3.Put(pool)
-	t2.Put(pool)
-	t.Put(pool)
-}
-
-// sixuPlus2NAF is 6u+2 in non-adjacent form.
-var sixuPlus2NAF = []int8{0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, -1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 1}
-
-// miller implements the Miller loop for calculating the Optimal Ate pairing.
-// See algorithm 1 from http://cryptojedi.org/papers/dclxvi-20100714.pdf
-func miller(q *twistPoint, p *curvePoint, pool *bnPool) *gfP12 {
-	ret := newGFp12(pool)
-	ret.SetOne()
-
-	aAffine := newTwistPoint(pool)
-	aAffine.Set(q)
-	aAffine.MakeAffine(pool)
-
-	bAffine := newCurvePoint(pool)
-	bAffine.Set(p)
-	bAffine.MakeAffine(pool)
-
-	minusA := newTwistPoint(pool)
-	minusA.Negative(aAffine, pool)
-
-	r := newTwistPoint(pool)
-	r.Set(aAffine)
-
-	r2 := newGFp2(pool)
-	r2.Square(aAffine.y, pool)
-
-	for i := len(sixuPlus2NAF) - 1; i > 0; i-- {
-		a, b, c, newR := lineFunctionDouble(r, bAffine, pool)
-		if i != len(sixuPlus2NAF)-1 {
-			ret.Square(ret, pool)
-		}
-
-		mulLine(ret, a, b, c, pool)
-		a.Put(pool)
-		b.Put(pool)
-		c.Put(pool)
-		r.Put(pool)
-		r = newR
-
-		switch sixuPlus2NAF[i-1] {
-		case 1:
-			a, b, c, newR = lineFunctionAdd(r, aAffine, bAffine, r2, pool)
-		case -1:
-			a, b, c, newR = lineFunctionAdd(r, minusA, bAffine, r2, pool)
-		default:
-			continue
-		}
-
-		mulLine(ret, a, b, c, pool)
-		a.Put(pool)
-		b.Put(pool)
-		c.Put(pool)
-		r.Put(pool)
-		r = newR
-	}
-
-	// In order to calculate Q1 we have to convert q from the sextic twist
-	// to the full GF(p^12) group, apply the Frobenius there, and convert
-	// back.
-	//
-	// The twist isomorphism is (x', y') -> (xω², yω³). If we consider just
-	// x for a moment, then after applying the Frobenius, we have x̄ω^(2p)
-	// where x̄ is the conjugate of x. If we are going to apply the inverse
-	// isomorphism we need a value with a single coefficient of ω² so we
-	// rewrite this as x̄ω^(2p-2)ω². ξ⁶ = ω and, due to the construction of
-	// p, 2p-2 is a multiple of six. Therefore we can rewrite as
-	// x̄ξ^((p-1)/3)ω² and applying the inverse isomorphism eliminates the
-	// ω².
-	//
-	// A similar argument can be made for the y value.
-
-	q1 := newTwistPoint(pool)
-	q1.x.Conjugate(aAffine.x)
-	q1.x.Mul(q1.x, xiToPMinus1Over3, pool)
-	q1.y.Conjugate(aAffine.y)
-	q1.y.Mul(q1.y, xiToPMinus1Over2, pool)
-	q1.z.SetOne()
-	q1.t.SetOne()
-
-	// For Q2 we are applying the p² Frobenius. The two conjugations cancel
-	// out and we are left only with the factors from the isomorphism. In
-	// the case of x, we end up with a pure number which is why
-	// xiToPSquaredMinus1Over3 is ∈ GF(p). With y we get a factor of -1. We
-	// ignore this to end up with -Q2.
-
-	minusQ2 := newTwistPoint(pool)
-	minusQ2.x.MulScalar(aAffine.x, xiToPSquaredMinus1Over3)
-	minusQ2.y.Set(aAffine.y)
-	minusQ2.z.SetOne()
-	minusQ2.t.SetOne()
-
-	r2.Square(q1.y, pool)
-	a, b, c, newR := lineFunctionAdd(r, q1, bAffine, r2, pool)
-	mulLine(ret, a, b, c, pool)
-	a.Put(pool)
-	b.Put(pool)
-	c.Put(pool)
-	r.Put(pool)
-	r = newR
-
-	r2.Square(minusQ2.y, pool)
-	a, b, c, newR = lineFunctionAdd(r, minusQ2, bAffine, r2, pool)
-	mulLine(ret, a, b, c, pool)
-	a.Put(pool)
-	b.Put(pool)
-	c.Put(pool)
-	r.Put(pool)
-	r = newR
-
-	aAffine.Put(pool)
-	bAffine.Put(pool)
-	minusA.Put(pool)
-	r.Put(pool)
-	r2.Put(pool)
-
-	return ret
-}
-
-// finalExponentiation computes the (p¹²-1)/Order-th power of an element of
-// GF(p¹²) to obtain an element of GT (steps 13-15 of algorithm 1 from
-// http://cryptojedi.org/papers/dclxvi-20100714.pdf)
-func finalExponentiation(in *gfP12, pool *bnPool) *gfP12 {
-	t1 := newGFp12(pool)
-
-	// This is the p^6-Frobenius
-	t1.x.Negative(in.x)
-	t1.y.Set(in.y)
-
-	inv := newGFp12(pool)
-	inv.Invert(in, pool)
-	t1.Mul(t1, inv, pool)
-
-	t2 := newGFp12(pool).FrobeniusP2(t1, pool)
-	t1.Mul(t1, t2, pool)
-
-	fp := newGFp12(pool).Frobenius(t1, pool)
-	fp2 := newGFp12(pool).FrobeniusP2(t1, pool)
-	fp3 := newGFp12(pool).Frobenius(fp2, pool)
-
-	fu, fu2, fu3 := newGFp12(pool), newGFp12(pool), newGFp12(pool)
-	fu.Exp(t1, u, pool)
-	fu2.Exp(fu, u, pool)
-	fu3.Exp(fu2, u, pool)
-
-	y3 := newGFp12(pool).Frobenius(fu, pool)
-	fu2p := newGFp12(pool).Frobenius(fu2, pool)
-	fu3p := newGFp12(pool).Frobenius(fu3, pool)
-	y2 := newGFp12(pool).FrobeniusP2(fu2, pool)
-
-	y0 := newGFp12(pool)
-	y0.Mul(fp, fp2, pool)
-	y0.Mul(y0, fp3, pool)
-
-	y1, y4, y5 := newGFp12(pool), newGFp12(pool), newGFp12(pool)
-	y1.Conjugate(t1)
-	y5.Conjugate(fu2)
-	y3.Conjugate(y3)
-	y4.Mul(fu, fu2p, pool)
-	y4.Conjugate(y4)
-
-	y6 := newGFp12(pool)
-	y6.Mul(fu3, fu3p, pool)
-	y6.Conjugate(y6)
-
-	t0 := newGFp12(pool)
-	t0.Square(y6, pool)
-	t0.Mul(t0, y4, pool)
-	t0.Mul(t0, y5, pool)
-	t1.Mul(y3, y5, pool)
-	t1.Mul(t1, t0, pool)
-	t0.Mul(t0, y2, pool)
-	t1.Square(t1, pool)
-	t1.Mul(t1, t0, pool)
-	t1.Square(t1, pool)
-	t0.Mul(t1, y1, pool)
-	t1.Mul(t1, y0, pool)
-	t0.Square(t0, pool)
-	t0.Mul(t0, t1, pool)
-
-	inv.Put(pool)
-	t1.Put(pool)
-	t2.Put(pool)
-	fp.Put(pool)
-	fp2.Put(pool)
-	fp3.Put(pool)
-	fu.Put(pool)
-	fu2.Put(pool)
-	fu3.Put(pool)
-	fu2p.Put(pool)
-	fu3p.Put(pool)
-	y0.Put(pool)
-	y1.Put(pool)
-	y2.Put(pool)
-	y3.Put(pool)
-	y4.Put(pool)
-	y5.Put(pool)
-	y6.Put(pool)
-
-	return t0
-}
-
-func optimalAte(a *twistPoint, b *curvePoint, pool *bnPool) *gfP12 {
-	e := miller(a, b, pool)
-	ret := finalExponentiation(e, pool)
-	e.Put(pool)
-
-	if a.IsInfinity() || b.IsInfinity() {
-		ret.SetOne()
-	}
-
-	return ret
-}
diff --git a/vendor/golang.org/x/crypto/bn256/twist.go b/vendor/golang.org/x/crypto/bn256/twist.go
deleted file mode 100644
index 056d80f..0000000
--- a/vendor/golang.org/x/crypto/bn256/twist.go
+++ /dev/null
@@ -1,258 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package bn256
-
-import (
-	"math/big"
-)
-
-// twistPoint implements the elliptic curve y²=x³+3/ξ over GF(p²). Points are
-// kept in Jacobian form and t=z² when valid. The group G₂ is the set of
-// n-torsion points of this curve over GF(p²) (where n = Order)
-type twistPoint struct {
-	x, y, z, t *gfP2
-}
-
-var twistB = &gfP2{
-	bigFromBase10("6500054969564660373279643874235990574282535810762300357187714502686418407178"),
-	bigFromBase10("45500384786952622612957507119651934019977750675336102500314001518804928850249"),
-}
-
-// twistGen is the generator of group G₂.
-var twistGen = &twistPoint{
-	&gfP2{
-		bigFromBase10("21167961636542580255011770066570541300993051739349375019639421053990175267184"),
-		bigFromBase10("64746500191241794695844075326670126197795977525365406531717464316923369116492"),
-	},
-	&gfP2{
-		bigFromBase10("20666913350058776956210519119118544732556678129809273996262322366050359951122"),
-		bigFromBase10("17778617556404439934652658462602675281523610326338642107814333856843981424549"),
-	},
-	&gfP2{
-		bigFromBase10("0"),
-		bigFromBase10("1"),
-	},
-	&gfP2{
-		bigFromBase10("0"),
-		bigFromBase10("1"),
-	},
-}
-
-func newTwistPoint(pool *bnPool) *twistPoint {
-	return &twistPoint{
-		newGFp2(pool),
-		newGFp2(pool),
-		newGFp2(pool),
-		newGFp2(pool),
-	}
-}
-
-func (c *twistPoint) String() string {
-	return "(" + c.x.String() + ", " + c.y.String() + ", " + c.z.String() + ")"
-}
-
-func (c *twistPoint) Put(pool *bnPool) {
-	c.x.Put(pool)
-	c.y.Put(pool)
-	c.z.Put(pool)
-	c.t.Put(pool)
-}
-
-func (c *twistPoint) Set(a *twistPoint) {
-	c.x.Set(a.x)
-	c.y.Set(a.y)
-	c.z.Set(a.z)
-	c.t.Set(a.t)
-}
-
-// IsOnCurve returns true iff c is on the curve where c must be in affine form.
-func (c *twistPoint) IsOnCurve() bool {
-	pool := new(bnPool)
-	yy := newGFp2(pool).Square(c.y, pool)
-	xxx := newGFp2(pool).Square(c.x, pool)
-	xxx.Mul(xxx, c.x, pool)
-	yy.Sub(yy, xxx)
-	yy.Sub(yy, twistB)
-	yy.Minimal()
-	return yy.x.Sign() == 0 && yy.y.Sign() == 0
-}
-
-func (c *twistPoint) SetInfinity() {
-	c.z.SetZero()
-}
-
-func (c *twistPoint) IsInfinity() bool {
-	return c.z.IsZero()
-}
-
-func (c *twistPoint) Add(a, b *twistPoint, pool *bnPool) {
-	// For additional comments, see the same function in curve.go.
-
-	if a.IsInfinity() {
-		c.Set(b)
-		return
-	}
-	if b.IsInfinity() {
-		c.Set(a)
-		return
-	}
-
-	// See http://hyperelliptic.org/EFD/g1p/auto-code/shortw/jacobian-0/addition/add-2007-bl.op3
-	z1z1 := newGFp2(pool).Square(a.z, pool)
-	z2z2 := newGFp2(pool).Square(b.z, pool)
-	u1 := newGFp2(pool).Mul(a.x, z2z2, pool)
-	u2 := newGFp2(pool).Mul(b.x, z1z1, pool)
-
-	t := newGFp2(pool).Mul(b.z, z2z2, pool)
-	s1 := newGFp2(pool).Mul(a.y, t, pool)
-
-	t.Mul(a.z, z1z1, pool)
-	s2 := newGFp2(pool).Mul(b.y, t, pool)
-
-	h := newGFp2(pool).Sub(u2, u1)
-	xEqual := h.IsZero()
-
-	t.Add(h, h)
-	i := newGFp2(pool).Square(t, pool)
-	j := newGFp2(pool).Mul(h, i, pool)
-
-	t.Sub(s2, s1)
-	yEqual := t.IsZero()
-	if xEqual && yEqual {
-		c.Double(a, pool)
-		return
-	}
-	r := newGFp2(pool).Add(t, t)
-
-	v := newGFp2(pool).Mul(u1, i, pool)
-
-	t4 := newGFp2(pool).Square(r, pool)
-	t.Add(v, v)
-	t6 := newGFp2(pool).Sub(t4, j)
-	c.x.Sub(t6, t)
-
-	t.Sub(v, c.x)       // t7
-	t4.Mul(s1, j, pool) // t8
-	t6.Add(t4, t4)      // t9
-	t4.Mul(r, t, pool)  // t10
-	c.y.Sub(t4, t6)
-
-	t.Add(a.z, b.z)    // t11
-	t4.Square(t, pool) // t12
-	t.Sub(t4, z1z1)    // t13
-	t4.Sub(t, z2z2)    // t14
-	c.z.Mul(t4, h, pool)
-
-	z1z1.Put(pool)
-	z2z2.Put(pool)
-	u1.Put(pool)
-	u2.Put(pool)
-	t.Put(pool)
-	s1.Put(pool)
-	s2.Put(pool)
-	h.Put(pool)
-	i.Put(pool)
-	j.Put(pool)
-	r.Put(pool)
-	v.Put(pool)
-	t4.Put(pool)
-	t6.Put(pool)
-}
-
-func (c *twistPoint) Double(a *twistPoint, pool *bnPool) {
-	// See http://hyperelliptic.org/EFD/g1p/auto-code/shortw/jacobian-0/doubling/dbl-2009-l.op3
-	A := newGFp2(pool).Square(a.x, pool)
-	B := newGFp2(pool).Square(a.y, pool)
-	C := newGFp2(pool).Square(B, pool)
-
-	t := newGFp2(pool).Add(a.x, B)
-	t2 := newGFp2(pool).Square(t, pool)
-	t.Sub(t2, A)
-	t2.Sub(t, C)
-	d := newGFp2(pool).Add(t2, t2)
-	t.Add(A, A)
-	e := newGFp2(pool).Add(t, A)
-	f := newGFp2(pool).Square(e, pool)
-
-	t.Add(d, d)
-	c.x.Sub(f, t)
-
-	t.Add(C, C)
-	t2.Add(t, t)
-	t.Add(t2, t2)
-	c.y.Sub(d, c.x)
-	t2.Mul(e, c.y, pool)
-	c.y.Sub(t2, t)
-
-	t.Mul(a.y, a.z, pool)
-	c.z.Add(t, t)
-
-	A.Put(pool)
-	B.Put(pool)
-	C.Put(pool)
-	t.Put(pool)
-	t2.Put(pool)
-	d.Put(pool)
-	e.Put(pool)
-	f.Put(pool)
-}
-
-func (c *twistPoint) Mul(a *twistPoint, scalar *big.Int, pool *bnPool) *twistPoint {
-	sum := newTwistPoint(pool)
-	sum.SetInfinity()
-	t := newTwistPoint(pool)
-
-	for i := scalar.BitLen(); i >= 0; i-- {
-		t.Double(sum, pool)
-		if scalar.Bit(i) != 0 {
-			sum.Add(t, a, pool)
-		} else {
-			sum.Set(t)
-		}
-	}
-
-	c.Set(sum)
-	sum.Put(pool)
-	t.Put(pool)
-	return c
-}
-
-// MakeAffine converts c to affine form and returns c. If c is ∞, then it sets
-// c to 0 : 1 : 0.
-func (c *twistPoint) MakeAffine(pool *bnPool) *twistPoint {
-	if c.z.IsOne() {
-		return c
-	}
-	if c.IsInfinity() {
-		c.x.SetZero()
-		c.y.SetOne()
-		c.z.SetZero()
-		c.t.SetZero()
-		return c
-	}
-
-	zInv := newGFp2(pool).Invert(c.z, pool)
-	t := newGFp2(pool).Mul(c.y, zInv, pool)
-	zInv2 := newGFp2(pool).Square(zInv, pool)
-	c.y.Mul(t, zInv2, pool)
-	t.Mul(c.x, zInv2, pool)
-	c.x.Set(t)
-	c.z.SetOne()
-	c.t.SetOne()
-
-	zInv.Put(pool)
-	t.Put(pool)
-	zInv2.Put(pool)
-
-	return c
-}
-
-func (c *twistPoint) Negative(a *twistPoint, pool *bnPool) {
-	c.x.Set(a.x)
-	c.y.SetZero()
-	c.y.Sub(c.y, a.y)
-	c.z.Set(a.z)
-	c.t.SetZero()
-}
diff --git a/vendor/golang.org/x/crypto/cast5/cast5.go b/vendor/golang.org/x/crypto/cast5/cast5.go
deleted file mode 100644
index 0b4af37..0000000
--- a/vendor/golang.org/x/crypto/cast5/cast5.go
+++ /dev/null
@@ -1,526 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package cast5 implements CAST5, as defined in RFC 2144. CAST5 is a common
-// OpenPGP cipher.
-package cast5 // import "golang.org/x/crypto/cast5"
-
-import "errors"
-
-const BlockSize = 8
-const KeySize = 16
-
-type Cipher struct {
-	masking [16]uint32
-	rotate  [16]uint8
-}
-
-func NewCipher(key []byte) (c *Cipher, err error) {
-	if len(key) != KeySize {
-		return nil, errors.New("CAST5: keys must be 16 bytes")
-	}
-
-	c = new(Cipher)
-	c.keySchedule(key)
-	return
-}
-
-func (c *Cipher) BlockSize() int {
-	return BlockSize
-}
-
-func (c *Cipher) Encrypt(dst, src []byte) {
-	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
-	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
-
-	l, r = r, l^f1(r, c.masking[0], c.rotate[0])
-	l, r = r, l^f2(r, c.masking[1], c.rotate[1])
-	l, r = r, l^f3(r, c.masking[2], c.rotate[2])
-	l, r = r, l^f1(r, c.masking[3], c.rotate[3])
-
-	l, r = r, l^f2(r, c.masking[4], c.rotate[4])
-	l, r = r, l^f3(r, c.masking[5], c.rotate[5])
-	l, r = r, l^f1(r, c.masking[6], c.rotate[6])
-	l, r = r, l^f2(r, c.masking[7], c.rotate[7])
-
-	l, r = r, l^f3(r, c.masking[8], c.rotate[8])
-	l, r = r, l^f1(r, c.masking[9], c.rotate[9])
-	l, r = r, l^f2(r, c.masking[10], c.rotate[10])
-	l, r = r, l^f3(r, c.masking[11], c.rotate[11])
-
-	l, r = r, l^f1(r, c.masking[12], c.rotate[12])
-	l, r = r, l^f2(r, c.masking[13], c.rotate[13])
-	l, r = r, l^f3(r, c.masking[14], c.rotate[14])
-	l, r = r, l^f1(r, c.masking[15], c.rotate[15])
-
-	dst[0] = uint8(r >> 24)
-	dst[1] = uint8(r >> 16)
-	dst[2] = uint8(r >> 8)
-	dst[3] = uint8(r)
-	dst[4] = uint8(l >> 24)
-	dst[5] = uint8(l >> 16)
-	dst[6] = uint8(l >> 8)
-	dst[7] = uint8(l)
-}
-
-func (c *Cipher) Decrypt(dst, src []byte) {
-	l := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
-	r := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
-
-	l, r = r, l^f1(r, c.masking[15], c.rotate[15])
-	l, r = r, l^f3(r, c.masking[14], c.rotate[14])
-	l, r = r, l^f2(r, c.masking[13], c.rotate[13])
-	l, r = r, l^f1(r, c.masking[12], c.rotate[12])
-
-	l, r = r, l^f3(r, c.masking[11], c.rotate[11])
-	l, r = r, l^f2(r, c.masking[10], c.rotate[10])
-	l, r = r, l^f1(r, c.masking[9], c.rotate[9])
-	l, r = r, l^f3(r, c.masking[8], c.rotate[8])
-
-	l, r = r, l^f2(r, c.masking[7], c.rotate[7])
-	l, r = r, l^f1(r, c.masking[6], c.rotate[6])
-	l, r = r, l^f3(r, c.masking[5], c.rotate[5])
-	l, r = r, l^f2(r, c.masking[4], c.rotate[4])
-
-	l, r = r, l^f1(r, c.masking[3], c.rotate[3])
-	l, r = r, l^f3(r, c.masking[2], c.rotate[2])
-	l, r = r, l^f2(r, c.masking[1], c.rotate[1])
-	l, r = r, l^f1(r, c.masking[0], c.rotate[0])
-
-	dst[0] = uint8(r >> 24)
-	dst[1] = uint8(r >> 16)
-	dst[2] = uint8(r >> 8)
-	dst[3] = uint8(r)
-	dst[4] = uint8(l >> 24)
-	dst[5] = uint8(l >> 16)
-	dst[6] = uint8(l >> 8)
-	dst[7] = uint8(l)
-}
-
-type keyScheduleA [4][7]uint8
-type keyScheduleB [4][5]uint8
-
-// keyScheduleRound contains the magic values for a round of the key schedule.
-// The keyScheduleA deals with the lines like:
-//   z0z1z2z3 = x0x1x2x3 ^ S5[xD] ^ S6[xF] ^ S7[xC] ^ S8[xE] ^ S7[x8]
-// Conceptually, both x and z are in the same array, x first. The first
-// element describes which word of this array gets written to and the
-// second, which word gets read. So, for the line above, it's "4, 0", because
-// it's writing to the first word of z, which, being after x, is word 4, and
-// reading from the first word of x: word 0.
-//
-// Next are the indexes into the S-boxes. Now the array is treated as bytes. So
-// "xD" is 0xd. The first byte of z is written as "16 + 0", just to be clear
-// that it's z that we're indexing.
-//
-// keyScheduleB deals with lines like:
-//   K1 = S5[z8] ^ S6[z9] ^ S7[z7] ^ S8[z6] ^ S5[z2]
-// "K1" is ignored because key words are always written in order. So the five
-// elements are the S-box indexes. They use the same form as in keyScheduleA,
-// above.
-
-type keyScheduleRound struct{}
-type keySchedule []keyScheduleRound
-
-var schedule = []struct {
-	a keyScheduleA
-	b keyScheduleB
-}{
-	{
-		keyScheduleA{
-			{4, 0, 0xd, 0xf, 0xc, 0xe, 0x8},
-			{5, 2, 16 + 0, 16 + 2, 16 + 1, 16 + 3, 0xa},
-			{6, 3, 16 + 7, 16 + 6, 16 + 5, 16 + 4, 9},
-			{7, 1, 16 + 0xa, 16 + 9, 16 + 0xb, 16 + 8, 0xb},
-		},
-		keyScheduleB{
-			{16 + 8, 16 + 9, 16 + 7, 16 + 6, 16 + 2},
-			{16 + 0xa, 16 + 0xb, 16 + 5, 16 + 4, 16 + 6},
-			{16 + 0xc, 16 + 0xd, 16 + 3, 16 + 2, 16 + 9},
-			{16 + 0xe, 16 + 0xf, 16 + 1, 16 + 0, 16 + 0xc},
-		},
-	},
-	{
-		keyScheduleA{
-			{0, 6, 16 + 5, 16 + 7, 16 + 4, 16 + 6, 16 + 0},
-			{1, 4, 0, 2, 1, 3, 16 + 2},
-			{2, 5, 7, 6, 5, 4, 16 + 1},
-			{3, 7, 0xa, 9, 0xb, 8, 16 + 3},
-		},
-		keyScheduleB{
-			{3, 2, 0xc, 0xd, 8},
-			{1, 0, 0xe, 0xf, 0xd},
-			{7, 6, 8, 9, 3},
-			{5, 4, 0xa, 0xb, 7},
-		},
-	},
-	{
-		keyScheduleA{
-			{4, 0, 0xd, 0xf, 0xc, 0xe, 8},
-			{5, 2, 16 + 0, 16 + 2, 16 + 1, 16 + 3, 0xa},
-			{6, 3, 16 + 7, 16 + 6, 16 + 5, 16 + 4, 9},
-			{7, 1, 16 + 0xa, 16 + 9, 16 + 0xb, 16 + 8, 0xb},
-		},
-		keyScheduleB{
-			{16 + 3, 16 + 2, 16 + 0xc, 16 + 0xd, 16 + 9},
-			{16 + 1, 16 + 0, 16 + 0xe, 16 + 0xf, 16 + 0xc},
-			{16 + 7, 16 + 6, 16 + 8, 16 + 9, 16 + 2},
-			{16 + 5, 16 + 4, 16 + 0xa, 16 + 0xb, 16 + 6},
-		},
-	},
-	{
-		keyScheduleA{
-			{0, 6, 16 + 5, 16 + 7, 16 + 4, 16 + 6, 16 + 0},
-			{1, 4, 0, 2, 1, 3, 16 + 2},
-			{2, 5, 7, 6, 5, 4, 16 + 1},
-			{3, 7, 0xa, 9, 0xb, 8, 16 + 3},
-		},
-		keyScheduleB{
-			{8, 9, 7, 6, 3},
-			{0xa, 0xb, 5, 4, 7},
-			{0xc, 0xd, 3, 2, 8},
-			{0xe, 0xf, 1, 0, 0xd},
-		},
-	},
-}
-
-func (c *Cipher) keySchedule(in []byte) {
-	var t [8]uint32
-	var k [32]uint32
-
-	for i := 0; i < 4; i++ {
-		j := i * 4
-		t[i] = uint32(in[j])<<24 | uint32(in[j+1])<<16 | uint32(in[j+2])<<8 | uint32(in[j+3])
-	}
-
-	x := []byte{6, 7, 4, 5}
-	ki := 0
-
-	for half := 0; half < 2; half++ {
-		for _, round := range schedule {
-			for j := 0; j < 4; j++ {
-				var a [7]uint8
-				copy(a[:], round.a[j][:])
-				w := t[a[1]]
-				w ^= sBox[4][(t[a[2]>>2]>>(24-8*(a[2]&3)))&0xff]
-				w ^= sBox[5][(t[a[3]>>2]>>(24-8*(a[3]&3)))&0xff]
-				w ^= sBox[6][(t[a[4]>>2]>>(24-8*(a[4]&3)))&0xff]
-				w ^= sBox[7][(t[a[5]>>2]>>(24-8*(a[5]&3)))&0xff]
-				w ^= sBox[x[j]][(t[a[6]>>2]>>(24-8*(a[6]&3)))&0xff]
-				t[a[0]] = w
-			}
-
-			for j := 0; j < 4; j++ {
-				var b [5]uint8
-				copy(b[:], round.b[j][:])
-				w := sBox[4][(t[b[0]>>2]>>(24-8*(b[0]&3)))&0xff]
-				w ^= sBox[5][(t[b[1]>>2]>>(24-8*(b[1]&3)))&0xff]
-				w ^= sBox[6][(t[b[2]>>2]>>(24-8*(b[2]&3)))&0xff]
-				w ^= sBox[7][(t[b[3]>>2]>>(24-8*(b[3]&3)))&0xff]
-				w ^= sBox[4+j][(t[b[4]>>2]>>(24-8*(b[4]&3)))&0xff]
-				k[ki] = w
-				ki++
-			}
-		}
-	}
-
-	for i := 0; i < 16; i++ {
-		c.masking[i] = k[i]
-		c.rotate[i] = uint8(k[16+i] & 0x1f)
-	}
-}
-
-// These are the three 'f' functions. See RFC 2144, section 2.2.
-func f1(d, m uint32, r uint8) uint32 {
-	t := m + d
-	I := (t << r) | (t >> (32 - r))
-	return ((sBox[0][I>>24] ^ sBox[1][(I>>16)&0xff]) - sBox[2][(I>>8)&0xff]) + sBox[3][I&0xff]
-}
-
-func f2(d, m uint32, r uint8) uint32 {
-	t := m ^ d
-	I := (t << r) | (t >> (32 - r))
-	return ((sBox[0][I>>24] - sBox[1][(I>>16)&0xff]) + sBox[2][(I>>8)&0xff]) ^ sBox[3][I&0xff]
-}
-
-func f3(d, m uint32, r uint8) uint32 {
-	t := m - d
-	I := (t << r) | (t >> (32 - r))
-	return ((sBox[0][I>>24] + sBox[1][(I>>16)&0xff]) ^ sBox[2][(I>>8)&0xff]) - sBox[3][I&0xff]
-}
-
-var sBox = [8][256]uint32{
-	{
-		0x30fb40d4, 0x9fa0ff0b, 0x6beccd2f, 0x3f258c7a, 0x1e213f2f, 0x9c004dd3, 0x6003e540, 0xcf9fc949,
-		0xbfd4af27, 0x88bbbdb5, 0xe2034090, 0x98d09675, 0x6e63a0e0, 0x15c361d2, 0xc2e7661d, 0x22d4ff8e,
-		0x28683b6f, 0xc07fd059, 0xff2379c8, 0x775f50e2, 0x43c340d3, 0xdf2f8656, 0x887ca41a, 0xa2d2bd2d,
-		0xa1c9e0d6, 0x346c4819, 0x61b76d87, 0x22540f2f, 0x2abe32e1, 0xaa54166b, 0x22568e3a, 0xa2d341d0,
-		0x66db40c8, 0xa784392f, 0x004dff2f, 0x2db9d2de, 0x97943fac, 0x4a97c1d8, 0x527644b7, 0xb5f437a7,
-		0xb82cbaef, 0xd751d159, 0x6ff7f0ed, 0x5a097a1f, 0x827b68d0, 0x90ecf52e, 0x22b0c054, 0xbc8e5935,
-		0x4b6d2f7f, 0x50bb64a2, 0xd2664910, 0xbee5812d, 0xb7332290, 0xe93b159f, 0xb48ee411, 0x4bff345d,
-		0xfd45c240, 0xad31973f, 0xc4f6d02e, 0x55fc8165, 0xd5b1caad, 0xa1ac2dae, 0xa2d4b76d, 0xc19b0c50,
-		0x882240f2, 0x0c6e4f38, 0xa4e4bfd7, 0x4f5ba272, 0x564c1d2f, 0xc59c5319, 0xb949e354, 0xb04669fe,
-		0xb1b6ab8a, 0xc71358dd, 0x6385c545, 0x110f935d, 0x57538ad5, 0x6a390493, 0xe63d37e0, 0x2a54f6b3,
-		0x3a787d5f, 0x6276a0b5, 0x19a6fcdf, 0x7a42206a, 0x29f9d4d5, 0xf61b1891, 0xbb72275e, 0xaa508167,
-		0x38901091, 0xc6b505eb, 0x84c7cb8c, 0x2ad75a0f, 0x874a1427, 0xa2d1936b, 0x2ad286af, 0xaa56d291,
-		0xd7894360, 0x425c750d, 0x93b39e26, 0x187184c9, 0x6c00b32d, 0x73e2bb14, 0xa0bebc3c, 0x54623779,
-		0x64459eab, 0x3f328b82, 0x7718cf82, 0x59a2cea6, 0x04ee002e, 0x89fe78e6, 0x3fab0950, 0x325ff6c2,
-		0x81383f05, 0x6963c5c8, 0x76cb5ad6, 0xd49974c9, 0xca180dcf, 0x380782d5, 0xc7fa5cf6, 0x8ac31511,
-		0x35e79e13, 0x47da91d0, 0xf40f9086, 0xa7e2419e, 0x31366241, 0x051ef495, 0xaa573b04, 0x4a805d8d,
-		0x548300d0, 0x00322a3c, 0xbf64cddf, 0xba57a68e, 0x75c6372b, 0x50afd341, 0xa7c13275, 0x915a0bf5,
-		0x6b54bfab, 0x2b0b1426, 0xab4cc9d7, 0x449ccd82, 0xf7fbf265, 0xab85c5f3, 0x1b55db94, 0xaad4e324,
-		0xcfa4bd3f, 0x2deaa3e2, 0x9e204d02, 0xc8bd25ac, 0xeadf55b3, 0xd5bd9e98, 0xe31231b2, 0x2ad5ad6c,
-		0x954329de, 0xadbe4528, 0xd8710f69, 0xaa51c90f, 0xaa786bf6, 0x22513f1e, 0xaa51a79b, 0x2ad344cc,
-		0x7b5a41f0, 0xd37cfbad, 0x1b069505, 0x41ece491, 0xb4c332e6, 0x032268d4, 0xc9600acc, 0xce387e6d,
-		0xbf6bb16c, 0x6a70fb78, 0x0d03d9c9, 0xd4df39de, 0xe01063da, 0x4736f464, 0x5ad328d8, 0xb347cc96,
-		0x75bb0fc3, 0x98511bfb, 0x4ffbcc35, 0xb58bcf6a, 0xe11f0abc, 0xbfc5fe4a, 0xa70aec10, 0xac39570a,
-		0x3f04442f, 0x6188b153, 0xe0397a2e, 0x5727cb79, 0x9ceb418f, 0x1cacd68d, 0x2ad37c96, 0x0175cb9d,
-		0xc69dff09, 0xc75b65f0, 0xd9db40d8, 0xec0e7779, 0x4744ead4, 0xb11c3274, 0xdd24cb9e, 0x7e1c54bd,
-		0xf01144f9, 0xd2240eb1, 0x9675b3fd, 0xa3ac3755, 0xd47c27af, 0x51c85f4d, 0x56907596, 0xa5bb15e6,
-		0x580304f0, 0xca042cf1, 0x011a37ea, 0x8dbfaadb, 0x35ba3e4a, 0x3526ffa0, 0xc37b4d09, 0xbc306ed9,
-		0x98a52666, 0x5648f725, 0xff5e569d, 0x0ced63d0, 0x7c63b2cf, 0x700b45e1, 0xd5ea50f1, 0x85a92872,
-		0xaf1fbda7, 0xd4234870, 0xa7870bf3, 0x2d3b4d79, 0x42e04198, 0x0cd0ede7, 0x26470db8, 0xf881814c,
-		0x474d6ad7, 0x7c0c5e5c, 0xd1231959, 0x381b7298, 0xf5d2f4db, 0xab838653, 0x6e2f1e23, 0x83719c9e,
-		0xbd91e046, 0x9a56456e, 0xdc39200c, 0x20c8c571, 0x962bda1c, 0xe1e696ff, 0xb141ab08, 0x7cca89b9,
-		0x1a69e783, 0x02cc4843, 0xa2f7c579, 0x429ef47d, 0x427b169c, 0x5ac9f049, 0xdd8f0f00, 0x5c8165bf,
-	},
-	{
-		0x1f201094, 0xef0ba75b, 0x69e3cf7e, 0x393f4380, 0xfe61cf7a, 0xeec5207a, 0x55889c94, 0x72fc0651,
-		0xada7ef79, 0x4e1d7235, 0xd55a63ce, 0xde0436ba, 0x99c430ef, 0x5f0c0794, 0x18dcdb7d, 0xa1d6eff3,
-		0xa0b52f7b, 0x59e83605, 0xee15b094, 0xe9ffd909, 0xdc440086, 0xef944459, 0xba83ccb3, 0xe0c3cdfb,
-		0xd1da4181, 0x3b092ab1, 0xf997f1c1, 0xa5e6cf7b, 0x01420ddb, 0xe4e7ef5b, 0x25a1ff41, 0xe180f806,
-		0x1fc41080, 0x179bee7a, 0xd37ac6a9, 0xfe5830a4, 0x98de8b7f, 0x77e83f4e, 0x79929269, 0x24fa9f7b,
-		0xe113c85b, 0xacc40083, 0xd7503525, 0xf7ea615f, 0x62143154, 0x0d554b63, 0x5d681121, 0xc866c359,
-		0x3d63cf73, 0xcee234c0, 0xd4d87e87, 0x5c672b21, 0x071f6181, 0x39f7627f, 0x361e3084, 0xe4eb573b,
-		0x602f64a4, 0xd63acd9c, 0x1bbc4635, 0x9e81032d, 0x2701f50c, 0x99847ab4, 0xa0e3df79, 0xba6cf38c,
-		0x10843094, 0x2537a95e, 0xf46f6ffe, 0xa1ff3b1f, 0x208cfb6a, 0x8f458c74, 0xd9e0a227, 0x4ec73a34,
-		0xfc884f69, 0x3e4de8df, 0xef0e0088, 0x3559648d, 0x8a45388c, 0x1d804366, 0x721d9bfd, 0xa58684bb,
-		0xe8256333, 0x844e8212, 0x128d8098, 0xfed33fb4, 0xce280ae1, 0x27e19ba5, 0xd5a6c252, 0xe49754bd,
-		0xc5d655dd, 0xeb667064, 0x77840b4d, 0xa1b6a801, 0x84db26a9, 0xe0b56714, 0x21f043b7, 0xe5d05860,
-		0x54f03084, 0x066ff472, 0xa31aa153, 0xdadc4755, 0xb5625dbf, 0x68561be6, 0x83ca6b94, 0x2d6ed23b,
-		0xeccf01db, 0xa6d3d0ba, 0xb6803d5c, 0xaf77a709, 0x33b4a34c, 0x397bc8d6, 0x5ee22b95, 0x5f0e5304,
-		0x81ed6f61, 0x20e74364, 0xb45e1378, 0xde18639b, 0x881ca122, 0xb96726d1, 0x8049a7e8, 0x22b7da7b,
-		0x5e552d25, 0x5272d237, 0x79d2951c, 0xc60d894c, 0x488cb402, 0x1ba4fe5b, 0xa4b09f6b, 0x1ca815cf,
-		0xa20c3005, 0x8871df63, 0xb9de2fcb, 0x0cc6c9e9, 0x0beeff53, 0xe3214517, 0xb4542835, 0x9f63293c,
-		0xee41e729, 0x6e1d2d7c, 0x50045286, 0x1e6685f3, 0xf33401c6, 0x30a22c95, 0x31a70850, 0x60930f13,
-		0x73f98417, 0xa1269859, 0xec645c44, 0x52c877a9, 0xcdff33a6, 0xa02b1741, 0x7cbad9a2, 0x2180036f,
-		0x50d99c08, 0xcb3f4861, 0xc26bd765, 0x64a3f6ab, 0x80342676, 0x25a75e7b, 0xe4e6d1fc, 0x20c710e6,
-		0xcdf0b680, 0x17844d3b, 0x31eef84d, 0x7e0824e4, 0x2ccb49eb, 0x846a3bae, 0x8ff77888, 0xee5d60f6,
-		0x7af75673, 0x2fdd5cdb, 0xa11631c1, 0x30f66f43, 0xb3faec54, 0x157fd7fa, 0xef8579cc, 0xd152de58,
-		0xdb2ffd5e, 0x8f32ce19, 0x306af97a, 0x02f03ef8, 0x99319ad5, 0xc242fa0f, 0xa7e3ebb0, 0xc68e4906,
-		0xb8da230c, 0x80823028, 0xdcdef3c8, 0xd35fb171, 0x088a1bc8, 0xbec0c560, 0x61a3c9e8, 0xbca8f54d,
-		0xc72feffa, 0x22822e99, 0x82c570b4, 0xd8d94e89, 0x8b1c34bc, 0x301e16e6, 0x273be979, 0xb0ffeaa6,
-		0x61d9b8c6, 0x00b24869, 0xb7ffce3f, 0x08dc283b, 0x43daf65a, 0xf7e19798, 0x7619b72f, 0x8f1c9ba4,
-		0xdc8637a0, 0x16a7d3b1, 0x9fc393b7, 0xa7136eeb, 0xc6bcc63e, 0x1a513742, 0xef6828bc, 0x520365d6,
-		0x2d6a77ab, 0x3527ed4b, 0x821fd216, 0x095c6e2e, 0xdb92f2fb, 0x5eea29cb, 0x145892f5, 0x91584f7f,
-		0x5483697b, 0x2667a8cc, 0x85196048, 0x8c4bacea, 0x833860d4, 0x0d23e0f9, 0x6c387e8a, 0x0ae6d249,
-		0xb284600c, 0xd835731d, 0xdcb1c647, 0xac4c56ea, 0x3ebd81b3, 0x230eabb0, 0x6438bc87, 0xf0b5b1fa,
-		0x8f5ea2b3, 0xfc184642, 0x0a036b7a, 0x4fb089bd, 0x649da589, 0xa345415e, 0x5c038323, 0x3e5d3bb9,
-		0x43d79572, 0x7e6dd07c, 0x06dfdf1e, 0x6c6cc4ef, 0x7160a539, 0x73bfbe70, 0x83877605, 0x4523ecf1,
-	},
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-		0xbeb1f9bf, 0xeefbcaea, 0xe8cf1950, 0x51df07ae, 0x920e8806, 0xf0ad0548, 0xe13c8d83, 0x927010d5,
-		0x11107d9f, 0x07647db9, 0xb2e3e4d4, 0x3d4f285e, 0xb9afa820, 0xfade82e0, 0xa067268b, 0x8272792e,
-		0x553fb2c0, 0x489ae22b, 0xd4ef9794, 0x125e3fbc, 0x21fffcee, 0x825b1bfd, 0x9255c5ed, 0x1257a240,
-		0x4e1a8302, 0xbae07fff, 0x528246e7, 0x8e57140e, 0x3373f7bf, 0x8c9f8188, 0xa6fc4ee8, 0xc982b5a5,
-		0xa8c01db7, 0x579fc264, 0x67094f31, 0xf2bd3f5f, 0x40fff7c1, 0x1fb78dfc, 0x8e6bd2c1, 0x437be59b,
-		0x99b03dbf, 0xb5dbc64b, 0x638dc0e6, 0x55819d99, 0xa197c81c, 0x4a012d6e, 0xc5884a28, 0xccc36f71,
-		0xb843c213, 0x6c0743f1, 0x8309893c, 0x0feddd5f, 0x2f7fe850, 0xd7c07f7e, 0x02507fbf, 0x5afb9a04,
-		0xa747d2d0, 0x1651192e, 0xaf70bf3e, 0x58c31380, 0x5f98302e, 0x727cc3c4, 0x0a0fb402, 0x0f7fef82,
-		0x8c96fdad, 0x5d2c2aae, 0x8ee99a49, 0x50da88b8, 0x8427f4a0, 0x1eac5790, 0x796fb449, 0x8252dc15,
-		0xefbd7d9b, 0xa672597d, 0xada840d8, 0x45f54504, 0xfa5d7403, 0xe83ec305, 0x4f91751a, 0x925669c2,
-		0x23efe941, 0xa903f12e, 0x60270df2, 0x0276e4b6, 0x94fd6574, 0x927985b2, 0x8276dbcb, 0x02778176,
-		0xf8af918d, 0x4e48f79e, 0x8f616ddf, 0xe29d840e, 0x842f7d83, 0x340ce5c8, 0x96bbb682, 0x93b4b148,
-		0xef303cab, 0x984faf28, 0x779faf9b, 0x92dc560d, 0x224d1e20, 0x8437aa88, 0x7d29dc96, 0x2756d3dc,
-		0x8b907cee, 0xb51fd240, 0xe7c07ce3, 0xe566b4a1, 0xc3e9615e, 0x3cf8209d, 0x6094d1e3, 0xcd9ca341,
-		0x5c76460e, 0x00ea983b, 0xd4d67881, 0xfd47572c, 0xf76cedd9, 0xbda8229c, 0x127dadaa, 0x438a074e,
-		0x1f97c090, 0x081bdb8a, 0x93a07ebe, 0xb938ca15, 0x97b03cff, 0x3dc2c0f8, 0x8d1ab2ec, 0x64380e51,
-		0x68cc7bfb, 0xd90f2788, 0x12490181, 0x5de5ffd4, 0xdd7ef86a, 0x76a2e214, 0xb9a40368, 0x925d958f,
-		0x4b39fffa, 0xba39aee9, 0xa4ffd30b, 0xfaf7933b, 0x6d498623, 0x193cbcfa, 0x27627545, 0x825cf47a,
-		0x61bd8ba0, 0xd11e42d1, 0xcead04f4, 0x127ea392, 0x10428db7, 0x8272a972, 0x9270c4a8, 0x127de50b,
-		0x285ba1c8, 0x3c62f44f, 0x35c0eaa5, 0xe805d231, 0x428929fb, 0xb4fcdf82, 0x4fb66a53, 0x0e7dc15b,
-		0x1f081fab, 0x108618ae, 0xfcfd086d, 0xf9ff2889, 0x694bcc11, 0x236a5cae, 0x12deca4d, 0x2c3f8cc5,
-		0xd2d02dfe, 0xf8ef5896, 0xe4cf52da, 0x95155b67, 0x494a488c, 0xb9b6a80c, 0x5c8f82bc, 0x89d36b45,
-		0x3a609437, 0xec00c9a9, 0x44715253, 0x0a874b49, 0xd773bc40, 0x7c34671c, 0x02717ef6, 0x4feb5536,
-		0xa2d02fff, 0xd2bf60c4, 0xd43f03c0, 0x50b4ef6d, 0x07478cd1, 0x006e1888, 0xa2e53f55, 0xb9e6d4bc,
-		0xa2048016, 0x97573833, 0xd7207d67, 0xde0f8f3d, 0x72f87b33, 0xabcc4f33, 0x7688c55d, 0x7b00a6b0,
-		0x947b0001, 0x570075d2, 0xf9bb88f8, 0x8942019e, 0x4264a5ff, 0x856302e0, 0x72dbd92b, 0xee971b69,
-		0x6ea22fde, 0x5f08ae2b, 0xaf7a616d, 0xe5c98767, 0xcf1febd2, 0x61efc8c2, 0xf1ac2571, 0xcc8239c2,
-		0x67214cb8, 0xb1e583d1, 0xb7dc3e62, 0x7f10bdce, 0xf90a5c38, 0x0ff0443d, 0x606e6dc6, 0x60543a49,
-		0x5727c148, 0x2be98a1d, 0x8ab41738, 0x20e1be24, 0xaf96da0f, 0x68458425, 0x99833be5, 0x600d457d,
-		0x282f9350, 0x8334b362, 0xd91d1120, 0x2b6d8da0, 0x642b1e31, 0x9c305a00, 0x52bce688, 0x1b03588a,
-		0xf7baefd5, 0x4142ed9c, 0xa4315c11, 0x83323ec5, 0xdfef4636, 0xa133c501, 0xe9d3531c, 0xee353783,
-	},
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-		0x9db30420, 0x1fb6e9de, 0xa7be7bef, 0xd273a298, 0x4a4f7bdb, 0x64ad8c57, 0x85510443, 0xfa020ed1,
-		0x7e287aff, 0xe60fb663, 0x095f35a1, 0x79ebf120, 0xfd059d43, 0x6497b7b1, 0xf3641f63, 0x241e4adf,
-		0x28147f5f, 0x4fa2b8cd, 0xc9430040, 0x0cc32220, 0xfdd30b30, 0xc0a5374f, 0x1d2d00d9, 0x24147b15,
-		0xee4d111a, 0x0fca5167, 0x71ff904c, 0x2d195ffe, 0x1a05645f, 0x0c13fefe, 0x081b08ca, 0x05170121,
-		0x80530100, 0xe83e5efe, 0xac9af4f8, 0x7fe72701, 0xd2b8ee5f, 0x06df4261, 0xbb9e9b8a, 0x7293ea25,
-		0xce84ffdf, 0xf5718801, 0x3dd64b04, 0xa26f263b, 0x7ed48400, 0x547eebe6, 0x446d4ca0, 0x6cf3d6f5,
-		0x2649abdf, 0xaea0c7f5, 0x36338cc1, 0x503f7e93, 0xd3772061, 0x11b638e1, 0x72500e03, 0xf80eb2bb,
-		0xabe0502e, 0xec8d77de, 0x57971e81, 0xe14f6746, 0xc9335400, 0x6920318f, 0x081dbb99, 0xffc304a5,
-		0x4d351805, 0x7f3d5ce3, 0xa6c866c6, 0x5d5bcca9, 0xdaec6fea, 0x9f926f91, 0x9f46222f, 0x3991467d,
-		0xa5bf6d8e, 0x1143c44f, 0x43958302, 0xd0214eeb, 0x022083b8, 0x3fb6180c, 0x18f8931e, 0x281658e6,
-		0x26486e3e, 0x8bd78a70, 0x7477e4c1, 0xb506e07c, 0xf32d0a25, 0x79098b02, 0xe4eabb81, 0x28123b23,
-		0x69dead38, 0x1574ca16, 0xdf871b62, 0x211c40b7, 0xa51a9ef9, 0x0014377b, 0x041e8ac8, 0x09114003,
-		0xbd59e4d2, 0xe3d156d5, 0x4fe876d5, 0x2f91a340, 0x557be8de, 0x00eae4a7, 0x0ce5c2ec, 0x4db4bba6,
-		0xe756bdff, 0xdd3369ac, 0xec17b035, 0x06572327, 0x99afc8b0, 0x56c8c391, 0x6b65811c, 0x5e146119,
-		0x6e85cb75, 0xbe07c002, 0xc2325577, 0x893ff4ec, 0x5bbfc92d, 0xd0ec3b25, 0xb7801ab7, 0x8d6d3b24,
-		0x20c763ef, 0xc366a5fc, 0x9c382880, 0x0ace3205, 0xaac9548a, 0xeca1d7c7, 0x041afa32, 0x1d16625a,
-		0x6701902c, 0x9b757a54, 0x31d477f7, 0x9126b031, 0x36cc6fdb, 0xc70b8b46, 0xd9e66a48, 0x56e55a79,
-		0x026a4ceb, 0x52437eff, 0x2f8f76b4, 0x0df980a5, 0x8674cde3, 0xedda04eb, 0x17a9be04, 0x2c18f4df,
-		0xb7747f9d, 0xab2af7b4, 0xefc34d20, 0x2e096b7c, 0x1741a254, 0xe5b6a035, 0x213d42f6, 0x2c1c7c26,
-		0x61c2f50f, 0x6552daf9, 0xd2c231f8, 0x25130f69, 0xd8167fa2, 0x0418f2c8, 0x001a96a6, 0x0d1526ab,
-		0x63315c21, 0x5e0a72ec, 0x49bafefd, 0x187908d9, 0x8d0dbd86, 0x311170a7, 0x3e9b640c, 0xcc3e10d7,
-		0xd5cad3b6, 0x0caec388, 0xf73001e1, 0x6c728aff, 0x71eae2a1, 0x1f9af36e, 0xcfcbd12f, 0xc1de8417,
-		0xac07be6b, 0xcb44a1d8, 0x8b9b0f56, 0x013988c3, 0xb1c52fca, 0xb4be31cd, 0xd8782806, 0x12a3a4e2,
-		0x6f7de532, 0x58fd7eb6, 0xd01ee900, 0x24adffc2, 0xf4990fc5, 0x9711aac5, 0x001d7b95, 0x82e5e7d2,
-		0x109873f6, 0x00613096, 0xc32d9521, 0xada121ff, 0x29908415, 0x7fbb977f, 0xaf9eb3db, 0x29c9ed2a,
-		0x5ce2a465, 0xa730f32c, 0xd0aa3fe8, 0x8a5cc091, 0xd49e2ce7, 0x0ce454a9, 0xd60acd86, 0x015f1919,
-		0x77079103, 0xdea03af6, 0x78a8565e, 0xdee356df, 0x21f05cbe, 0x8b75e387, 0xb3c50651, 0xb8a5c3ef,
-		0xd8eeb6d2, 0xe523be77, 0xc2154529, 0x2f69efdf, 0xafe67afb, 0xf470c4b2, 0xf3e0eb5b, 0xd6cc9876,
-		0x39e4460c, 0x1fda8538, 0x1987832f, 0xca007367, 0xa99144f8, 0x296b299e, 0x492fc295, 0x9266beab,
-		0xb5676e69, 0x9bd3ddda, 0xdf7e052f, 0xdb25701c, 0x1b5e51ee, 0xf65324e6, 0x6afce36c, 0x0316cc04,
-		0x8644213e, 0xb7dc59d0, 0x7965291f, 0xccd6fd43, 0x41823979, 0x932bcdf6, 0xb657c34d, 0x4edfd282,
-		0x7ae5290c, 0x3cb9536b, 0x851e20fe, 0x9833557e, 0x13ecf0b0, 0xd3ffb372, 0x3f85c5c1, 0x0aef7ed2,
-	},
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-		0x08fbf1fa, 0xe7f511cc, 0xd2051b00, 0x735aba00, 0x2ab722d8, 0x386381cb, 0xacf6243a, 0x69befd7a,
-		0xe6a2e77f, 0xf0c720cd, 0xc4494816, 0xccf5c180, 0x38851640, 0x15b0a848, 0xe68b18cb, 0x4caadeff,
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-		0x1a550a04, 0xba8f65cb, 0x7251f4e7, 0x95a51725, 0xc106ecd7, 0x97a5980a, 0xc539b9aa, 0x4d79fe6a,
-		0xf2f3f763, 0x68af8040, 0xed0c9e56, 0x11b4958b, 0xe1eb5a88, 0x8709e6b0, 0xd7e07156, 0x4e29fea7,
-		0x6366e52d, 0x02d1c000, 0xc4ac8e05, 0x9377f571, 0x0c05372a, 0x578535f2, 0x2261be02, 0xd642a0c9,
-		0xdf13a280, 0x74b55bd2, 0x682199c0, 0xd421e5ec, 0x53fb3ce8, 0xc8adedb3, 0x28a87fc9, 0x3d959981,
-		0x5c1ff900, 0xfe38d399, 0x0c4eff0b, 0x062407ea, 0xaa2f4fb1, 0x4fb96976, 0x90c79505, 0xb0a8a774,
-		0xef55a1ff, 0xe59ca2c2, 0xa6b62d27, 0xe66a4263, 0xdf65001f, 0x0ec50966, 0xdfdd55bc, 0x29de0655,
-		0x911e739a, 0x17af8975, 0x32c7911c, 0x89f89468, 0x0d01e980, 0x524755f4, 0x03b63cc9, 0x0cc844b2,
-		0xbcf3f0aa, 0x87ac36e9, 0xe53a7426, 0x01b3d82b, 0x1a9e7449, 0x64ee2d7e, 0xcddbb1da, 0x01c94910,
-		0xb868bf80, 0x0d26f3fd, 0x9342ede7, 0x04a5c284, 0x636737b6, 0x50f5b616, 0xf24766e3, 0x8eca36c1,
-		0x136e05db, 0xfef18391, 0xfb887a37, 0xd6e7f7d4, 0xc7fb7dc9, 0x3063fcdf, 0xb6f589de, 0xec2941da,
-		0x26e46695, 0xb7566419, 0xf654efc5, 0xd08d58b7, 0x48925401, 0xc1bacb7f, 0xe5ff550f, 0xb6083049,
-		0x5bb5d0e8, 0x87d72e5a, 0xab6a6ee1, 0x223a66ce, 0xc62bf3cd, 0x9e0885f9, 0x68cb3e47, 0x086c010f,
-		0xa21de820, 0xd18b69de, 0xf3f65777, 0xfa02c3f6, 0x407edac3, 0xcbb3d550, 0x1793084d, 0xb0d70eba,
-		0x0ab378d5, 0xd951fb0c, 0xded7da56, 0x4124bbe4, 0x94ca0b56, 0x0f5755d1, 0xe0e1e56e, 0x6184b5be,
-		0x580a249f, 0x94f74bc0, 0xe327888e, 0x9f7b5561, 0xc3dc0280, 0x05687715, 0x646c6bd7, 0x44904db3,
-		0x66b4f0a3, 0xc0f1648a, 0x697ed5af, 0x49e92ff6, 0x309e374f, 0x2cb6356a, 0x85808573, 0x4991f840,
-		0x76f0ae02, 0x083be84d, 0x28421c9a, 0x44489406, 0x736e4cb8, 0xc1092910, 0x8bc95fc6, 0x7d869cf4,
-		0x134f616f, 0x2e77118d, 0xb31b2be1, 0xaa90b472, 0x3ca5d717, 0x7d161bba, 0x9cad9010, 0xaf462ba2,
-		0x9fe459d2, 0x45d34559, 0xd9f2da13, 0xdbc65487, 0xf3e4f94e, 0x176d486f, 0x097c13ea, 0x631da5c7,
-		0x445f7382, 0x175683f4, 0xcdc66a97, 0x70be0288, 0xb3cdcf72, 0x6e5dd2f3, 0x20936079, 0x459b80a5,
-		0xbe60e2db, 0xa9c23101, 0xeba5315c, 0x224e42f2, 0x1c5c1572, 0xf6721b2c, 0x1ad2fff3, 0x8c25404e,
-		0x324ed72f, 0x4067b7fd, 0x0523138e, 0x5ca3bc78, 0xdc0fd66e, 0x75922283, 0x784d6b17, 0x58ebb16e,
-		0x44094f85, 0x3f481d87, 0xfcfeae7b, 0x77b5ff76, 0x8c2302bf, 0xaaf47556, 0x5f46b02a, 0x2b092801,
-		0x3d38f5f7, 0x0ca81f36, 0x52af4a8a, 0x66d5e7c0, 0xdf3b0874, 0x95055110, 0x1b5ad7a8, 0xf61ed5ad,
-		0x6cf6e479, 0x20758184, 0xd0cefa65, 0x88f7be58, 0x4a046826, 0x0ff6f8f3, 0xa09c7f70, 0x5346aba0,
-		0x5ce96c28, 0xe176eda3, 0x6bac307f, 0x376829d2, 0x85360fa9, 0x17e3fe2a, 0x24b79767, 0xf5a96b20,
-		0xd6cd2595, 0x68ff1ebf, 0x7555442c, 0xf19f06be, 0xf9e0659a, 0xeeb9491d, 0x34010718, 0xbb30cab8,
-		0xe822fe15, 0x88570983, 0x750e6249, 0xda627e55, 0x5e76ffa8, 0xb1534546, 0x6d47de08, 0xefe9e7d4,
-	},
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-		0xf6fa8f9d, 0x2cac6ce1, 0x4ca34867, 0xe2337f7c, 0x95db08e7, 0x016843b4, 0xeced5cbc, 0x325553ac,
-		0xbf9f0960, 0xdfa1e2ed, 0x83f0579d, 0x63ed86b9, 0x1ab6a6b8, 0xde5ebe39, 0xf38ff732, 0x8989b138,
-		0x33f14961, 0xc01937bd, 0xf506c6da, 0xe4625e7e, 0xa308ea99, 0x4e23e33c, 0x79cbd7cc, 0x48a14367,
-		0xa3149619, 0xfec94bd5, 0xa114174a, 0xeaa01866, 0xa084db2d, 0x09a8486f, 0xa888614a, 0x2900af98,
-		0x01665991, 0xe1992863, 0xc8f30c60, 0x2e78ef3c, 0xd0d51932, 0xcf0fec14, 0xf7ca07d2, 0xd0a82072,
-		0xfd41197e, 0x9305a6b0, 0xe86be3da, 0x74bed3cd, 0x372da53c, 0x4c7f4448, 0xdab5d440, 0x6dba0ec3,
-		0x083919a7, 0x9fbaeed9, 0x49dbcfb0, 0x4e670c53, 0x5c3d9c01, 0x64bdb941, 0x2c0e636a, 0xba7dd9cd,
-		0xea6f7388, 0xe70bc762, 0x35f29adb, 0x5c4cdd8d, 0xf0d48d8c, 0xb88153e2, 0x08a19866, 0x1ae2eac8,
-		0x284caf89, 0xaa928223, 0x9334be53, 0x3b3a21bf, 0x16434be3, 0x9aea3906, 0xefe8c36e, 0xf890cdd9,
-		0x80226dae, 0xc340a4a3, 0xdf7e9c09, 0xa694a807, 0x5b7c5ecc, 0x221db3a6, 0x9a69a02f, 0x68818a54,
-		0xceb2296f, 0x53c0843a, 0xfe893655, 0x25bfe68a, 0xb4628abc, 0xcf222ebf, 0x25ac6f48, 0xa9a99387,
-		0x53bddb65, 0xe76ffbe7, 0xe967fd78, 0x0ba93563, 0x8e342bc1, 0xe8a11be9, 0x4980740d, 0xc8087dfc,
-		0x8de4bf99, 0xa11101a0, 0x7fd37975, 0xda5a26c0, 0xe81f994f, 0x9528cd89, 0xfd339fed, 0xb87834bf,
-		0x5f04456d, 0x22258698, 0xc9c4c83b, 0x2dc156be, 0x4f628daa, 0x57f55ec5, 0xe2220abe, 0xd2916ebf,
-		0x4ec75b95, 0x24f2c3c0, 0x42d15d99, 0xcd0d7fa0, 0x7b6e27ff, 0xa8dc8af0, 0x7345c106, 0xf41e232f,
-		0x35162386, 0xe6ea8926, 0x3333b094, 0x157ec6f2, 0x372b74af, 0x692573e4, 0xe9a9d848, 0xf3160289,
-		0x3a62ef1d, 0xa787e238, 0xf3a5f676, 0x74364853, 0x20951063, 0x4576698d, 0xb6fad407, 0x592af950,
-		0x36f73523, 0x4cfb6e87, 0x7da4cec0, 0x6c152daa, 0xcb0396a8, 0xc50dfe5d, 0xfcd707ab, 0x0921c42f,
-		0x89dff0bb, 0x5fe2be78, 0x448f4f33, 0x754613c9, 0x2b05d08d, 0x48b9d585, 0xdc049441, 0xc8098f9b,
-		0x7dede786, 0xc39a3373, 0x42410005, 0x6a091751, 0x0ef3c8a6, 0x890072d6, 0x28207682, 0xa9a9f7be,
-		0xbf32679d, 0xd45b5b75, 0xb353fd00, 0xcbb0e358, 0x830f220a, 0x1f8fb214, 0xd372cf08, 0xcc3c4a13,
-		0x8cf63166, 0x061c87be, 0x88c98f88, 0x6062e397, 0x47cf8e7a, 0xb6c85283, 0x3cc2acfb, 0x3fc06976,
-		0x4e8f0252, 0x64d8314d, 0xda3870e3, 0x1e665459, 0xc10908f0, 0x513021a5, 0x6c5b68b7, 0x822f8aa0,
-		0x3007cd3e, 0x74719eef, 0xdc872681, 0x073340d4, 0x7e432fd9, 0x0c5ec241, 0x8809286c, 0xf592d891,
-		0x08a930f6, 0x957ef305, 0xb7fbffbd, 0xc266e96f, 0x6fe4ac98, 0xb173ecc0, 0xbc60b42a, 0x953498da,
-		0xfba1ae12, 0x2d4bd736, 0x0f25faab, 0xa4f3fceb, 0xe2969123, 0x257f0c3d, 0x9348af49, 0x361400bc,
-		0xe8816f4a, 0x3814f200, 0xa3f94043, 0x9c7a54c2, 0xbc704f57, 0xda41e7f9, 0xc25ad33a, 0x54f4a084,
-		0xb17f5505, 0x59357cbe, 0xedbd15c8, 0x7f97c5ab, 0xba5ac7b5, 0xb6f6deaf, 0x3a479c3a, 0x5302da25,
-		0x653d7e6a, 0x54268d49, 0x51a477ea, 0x5017d55b, 0xd7d25d88, 0x44136c76, 0x0404a8c8, 0xb8e5a121,
-		0xb81a928a, 0x60ed5869, 0x97c55b96, 0xeaec991b, 0x29935913, 0x01fdb7f1, 0x088e8dfa, 0x9ab6f6f5,
-		0x3b4cbf9f, 0x4a5de3ab, 0xe6051d35, 0xa0e1d855, 0xd36b4cf1, 0xf544edeb, 0xb0e93524, 0xbebb8fbd,
-		0xa2d762cf, 0x49c92f54, 0x38b5f331, 0x7128a454, 0x48392905, 0xa65b1db8, 0x851c97bd, 0xd675cf2f,
-	},
-	{
-		0x85e04019, 0x332bf567, 0x662dbfff, 0xcfc65693, 0x2a8d7f6f, 0xab9bc912, 0xde6008a1, 0x2028da1f,
-		0x0227bce7, 0x4d642916, 0x18fac300, 0x50f18b82, 0x2cb2cb11, 0xb232e75c, 0x4b3695f2, 0xb28707de,
-		0xa05fbcf6, 0xcd4181e9, 0xe150210c, 0xe24ef1bd, 0xb168c381, 0xfde4e789, 0x5c79b0d8, 0x1e8bfd43,
-		0x4d495001, 0x38be4341, 0x913cee1d, 0x92a79c3f, 0x089766be, 0xbaeeadf4, 0x1286becf, 0xb6eacb19,
-		0x2660c200, 0x7565bde4, 0x64241f7a, 0x8248dca9, 0xc3b3ad66, 0x28136086, 0x0bd8dfa8, 0x356d1cf2,
-		0x107789be, 0xb3b2e9ce, 0x0502aa8f, 0x0bc0351e, 0x166bf52a, 0xeb12ff82, 0xe3486911, 0xd34d7516,
-		0x4e7b3aff, 0x5f43671b, 0x9cf6e037, 0x4981ac83, 0x334266ce, 0x8c9341b7, 0xd0d854c0, 0xcb3a6c88,
-		0x47bc2829, 0x4725ba37, 0xa66ad22b, 0x7ad61f1e, 0x0c5cbafa, 0x4437f107, 0xb6e79962, 0x42d2d816,
-		0x0a961288, 0xe1a5c06e, 0x13749e67, 0x72fc081a, 0xb1d139f7, 0xf9583745, 0xcf19df58, 0xbec3f756,
-		0xc06eba30, 0x07211b24, 0x45c28829, 0xc95e317f, 0xbc8ec511, 0x38bc46e9, 0xc6e6fa14, 0xbae8584a,
-		0xad4ebc46, 0x468f508b, 0x7829435f, 0xf124183b, 0x821dba9f, 0xaff60ff4, 0xea2c4e6d, 0x16e39264,
-		0x92544a8b, 0x009b4fc3, 0xaba68ced, 0x9ac96f78, 0x06a5b79a, 0xb2856e6e, 0x1aec3ca9, 0xbe838688,
-		0x0e0804e9, 0x55f1be56, 0xe7e5363b, 0xb3a1f25d, 0xf7debb85, 0x61fe033c, 0x16746233, 0x3c034c28,
-		0xda6d0c74, 0x79aac56c, 0x3ce4e1ad, 0x51f0c802, 0x98f8f35a, 0x1626a49f, 0xeed82b29, 0x1d382fe3,
-		0x0c4fb99a, 0xbb325778, 0x3ec6d97b, 0x6e77a6a9, 0xcb658b5c, 0xd45230c7, 0x2bd1408b, 0x60c03eb7,
-		0xb9068d78, 0xa33754f4, 0xf430c87d, 0xc8a71302, 0xb96d8c32, 0xebd4e7be, 0xbe8b9d2d, 0x7979fb06,
-		0xe7225308, 0x8b75cf77, 0x11ef8da4, 0xe083c858, 0x8d6b786f, 0x5a6317a6, 0xfa5cf7a0, 0x5dda0033,
-		0xf28ebfb0, 0xf5b9c310, 0xa0eac280, 0x08b9767a, 0xa3d9d2b0, 0x79d34217, 0x021a718d, 0x9ac6336a,
-		0x2711fd60, 0x438050e3, 0x069908a8, 0x3d7fedc4, 0x826d2bef, 0x4eeb8476, 0x488dcf25, 0x36c9d566,
-		0x28e74e41, 0xc2610aca, 0x3d49a9cf, 0xbae3b9df, 0xb65f8de6, 0x92aeaf64, 0x3ac7d5e6, 0x9ea80509,
-		0xf22b017d, 0xa4173f70, 0xdd1e16c3, 0x15e0d7f9, 0x50b1b887, 0x2b9f4fd5, 0x625aba82, 0x6a017962,
-		0x2ec01b9c, 0x15488aa9, 0xd716e740, 0x40055a2c, 0x93d29a22, 0xe32dbf9a, 0x058745b9, 0x3453dc1e,
-		0xd699296e, 0x496cff6f, 0x1c9f4986, 0xdfe2ed07, 0xb87242d1, 0x19de7eae, 0x053e561a, 0x15ad6f8c,
-		0x66626c1c, 0x7154c24c, 0xea082b2a, 0x93eb2939, 0x17dcb0f0, 0x58d4f2ae, 0x9ea294fb, 0x52cf564c,
-		0x9883fe66, 0x2ec40581, 0x763953c3, 0x01d6692e, 0xd3a0c108, 0xa1e7160e, 0xe4f2dfa6, 0x693ed285,
-		0x74904698, 0x4c2b0edd, 0x4f757656, 0x5d393378, 0xa132234f, 0x3d321c5d, 0xc3f5e194, 0x4b269301,
-		0xc79f022f, 0x3c997e7e, 0x5e4f9504, 0x3ffafbbd, 0x76f7ad0e, 0x296693f4, 0x3d1fce6f, 0xc61e45be,
-		0xd3b5ab34, 0xf72bf9b7, 0x1b0434c0, 0x4e72b567, 0x5592a33d, 0xb5229301, 0xcfd2a87f, 0x60aeb767,
-		0x1814386b, 0x30bcc33d, 0x38a0c07d, 0xfd1606f2, 0xc363519b, 0x589dd390, 0x5479f8e6, 0x1cb8d647,
-		0x97fd61a9, 0xea7759f4, 0x2d57539d, 0x569a58cf, 0xe84e63ad, 0x462e1b78, 0x6580f87e, 0xf3817914,
-		0x91da55f4, 0x40a230f3, 0xd1988f35, 0xb6e318d2, 0x3ffa50bc, 0x3d40f021, 0xc3c0bdae, 0x4958c24c,
-		0x518f36b2, 0x84b1d370, 0x0fedce83, 0x878ddada, 0xf2a279c7, 0x94e01be8, 0x90716f4b, 0x954b8aa3,
-	},
-	{
-		0xe216300d, 0xbbddfffc, 0xa7ebdabd, 0x35648095, 0x7789f8b7, 0xe6c1121b, 0x0e241600, 0x052ce8b5,
-		0x11a9cfb0, 0xe5952f11, 0xece7990a, 0x9386d174, 0x2a42931c, 0x76e38111, 0xb12def3a, 0x37ddddfc,
-		0xde9adeb1, 0x0a0cc32c, 0xbe197029, 0x84a00940, 0xbb243a0f, 0xb4d137cf, 0xb44e79f0, 0x049eedfd,
-		0x0b15a15d, 0x480d3168, 0x8bbbde5a, 0x669ded42, 0xc7ece831, 0x3f8f95e7, 0x72df191b, 0x7580330d,
-		0x94074251, 0x5c7dcdfa, 0xabbe6d63, 0xaa402164, 0xb301d40a, 0x02e7d1ca, 0x53571dae, 0x7a3182a2,
-		0x12a8ddec, 0xfdaa335d, 0x176f43e8, 0x71fb46d4, 0x38129022, 0xce949ad4, 0xb84769ad, 0x965bd862,
-		0x82f3d055, 0x66fb9767, 0x15b80b4e, 0x1d5b47a0, 0x4cfde06f, 0xc28ec4b8, 0x57e8726e, 0x647a78fc,
-		0x99865d44, 0x608bd593, 0x6c200e03, 0x39dc5ff6, 0x5d0b00a3, 0xae63aff2, 0x7e8bd632, 0x70108c0c,
-		0xbbd35049, 0x2998df04, 0x980cf42a, 0x9b6df491, 0x9e7edd53, 0x06918548, 0x58cb7e07, 0x3b74ef2e,
-		0x522fffb1, 0xd24708cc, 0x1c7e27cd, 0xa4eb215b, 0x3cf1d2e2, 0x19b47a38, 0x424f7618, 0x35856039,
-		0x9d17dee7, 0x27eb35e6, 0xc9aff67b, 0x36baf5b8, 0x09c467cd, 0xc18910b1, 0xe11dbf7b, 0x06cd1af8,
-		0x7170c608, 0x2d5e3354, 0xd4de495a, 0x64c6d006, 0xbcc0c62c, 0x3dd00db3, 0x708f8f34, 0x77d51b42,
-		0x264f620f, 0x24b8d2bf, 0x15c1b79e, 0x46a52564, 0xf8d7e54e, 0x3e378160, 0x7895cda5, 0x859c15a5,
-		0xe6459788, 0xc37bc75f, 0xdb07ba0c, 0x0676a3ab, 0x7f229b1e, 0x31842e7b, 0x24259fd7, 0xf8bef472,
-		0x835ffcb8, 0x6df4c1f2, 0x96f5b195, 0xfd0af0fc, 0xb0fe134c, 0xe2506d3d, 0x4f9b12ea, 0xf215f225,
-		0xa223736f, 0x9fb4c428, 0x25d04979, 0x34c713f8, 0xc4618187, 0xea7a6e98, 0x7cd16efc, 0x1436876c,
-		0xf1544107, 0xbedeee14, 0x56e9af27, 0xa04aa441, 0x3cf7c899, 0x92ecbae6, 0xdd67016d, 0x151682eb,
-		0xa842eedf, 0xfdba60b4, 0xf1907b75, 0x20e3030f, 0x24d8c29e, 0xe139673b, 0xefa63fb8, 0x71873054,
-		0xb6f2cf3b, 0x9f326442, 0xcb15a4cc, 0xb01a4504, 0xf1e47d8d, 0x844a1be5, 0xbae7dfdc, 0x42cbda70,
-		0xcd7dae0a, 0x57e85b7a, 0xd53f5af6, 0x20cf4d8c, 0xcea4d428, 0x79d130a4, 0x3486ebfb, 0x33d3cddc,
-		0x77853b53, 0x37effcb5, 0xc5068778, 0xe580b3e6, 0x4e68b8f4, 0xc5c8b37e, 0x0d809ea2, 0x398feb7c,
-		0x132a4f94, 0x43b7950e, 0x2fee7d1c, 0x223613bd, 0xdd06caa2, 0x37df932b, 0xc4248289, 0xacf3ebc3,
-		0x5715f6b7, 0xef3478dd, 0xf267616f, 0xc148cbe4, 0x9052815e, 0x5e410fab, 0xb48a2465, 0x2eda7fa4,
-		0xe87b40e4, 0xe98ea084, 0x5889e9e1, 0xefd390fc, 0xdd07d35b, 0xdb485694, 0x38d7e5b2, 0x57720101,
-		0x730edebc, 0x5b643113, 0x94917e4f, 0x503c2fba, 0x646f1282, 0x7523d24a, 0xe0779695, 0xf9c17a8f,
-		0x7a5b2121, 0xd187b896, 0x29263a4d, 0xba510cdf, 0x81f47c9f, 0xad1163ed, 0xea7b5965, 0x1a00726e,
-		0x11403092, 0x00da6d77, 0x4a0cdd61, 0xad1f4603, 0x605bdfb0, 0x9eedc364, 0x22ebe6a8, 0xcee7d28a,
-		0xa0e736a0, 0x5564a6b9, 0x10853209, 0xc7eb8f37, 0x2de705ca, 0x8951570f, 0xdf09822b, 0xbd691a6c,
-		0xaa12e4f2, 0x87451c0f, 0xe0f6a27a, 0x3ada4819, 0x4cf1764f, 0x0d771c2b, 0x67cdb156, 0x350d8384,
-		0x5938fa0f, 0x42399ef3, 0x36997b07, 0x0e84093d, 0x4aa93e61, 0x8360d87b, 0x1fa98b0c, 0x1149382c,
-		0xe97625a5, 0x0614d1b7, 0x0e25244b, 0x0c768347, 0x589e8d82, 0x0d2059d1, 0xa466bb1e, 0xf8da0a82,
-		0x04f19130, 0xba6e4ec0, 0x99265164, 0x1ee7230d, 0x50b2ad80, 0xeaee6801, 0x8db2a283, 0xea8bf59e,
-	},
-}
diff --git a/vendor/golang.org/x/crypto/cast5/cast5_test.go b/vendor/golang.org/x/crypto/cast5/cast5_test.go
deleted file mode 100644
index 778b272..0000000
--- a/vendor/golang.org/x/crypto/cast5/cast5_test.go
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cast5
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-// This test vector is taken from RFC 2144, App B.1.
-// Since the other two test vectors are for reduced-round variants, we can't
-// use them.
-var basicTests = []struct {
-	key, plainText, cipherText string
-}{
-	{
-		"0123456712345678234567893456789a",
-		"0123456789abcdef",
-		"238b4fe5847e44b2",
-	},
-}
-
-func TestBasic(t *testing.T) {
-	for i, test := range basicTests {
-		key, _ := hex.DecodeString(test.key)
-		plainText, _ := hex.DecodeString(test.plainText)
-		expected, _ := hex.DecodeString(test.cipherText)
-
-		c, err := NewCipher(key)
-		if err != nil {
-			t.Errorf("#%d: failed to create Cipher: %s", i, err)
-			continue
-		}
-		var cipherText [BlockSize]byte
-		c.Encrypt(cipherText[:], plainText)
-		if !bytes.Equal(cipherText[:], expected) {
-			t.Errorf("#%d: got:%x want:%x", i, cipherText, expected)
-		}
-
-		var plainTextAgain [BlockSize]byte
-		c.Decrypt(plainTextAgain[:], cipherText[:])
-		if !bytes.Equal(plainTextAgain[:], plainText) {
-			t.Errorf("#%d: got:%x want:%x", i, plainTextAgain, plainText)
-		}
-	}
-}
-
-// TestFull performs the test specified in RFC 2144, App B.2.
-// However, due to the length of time taken, it's disabled here and a more
-// limited version is included, below.
-func TestFull(t *testing.T) {
-	if testing.Short() {
-		// This is too slow for normal testing
-		return
-	}
-
-	a, b := iterate(1000000)
-
-	const expectedA = "eea9d0a249fd3ba6b3436fb89d6dca92"
-	const expectedB = "b2c95eb00c31ad7180ac05b8e83d696e"
-
-	if hex.EncodeToString(a) != expectedA {
-		t.Errorf("a: got:%x want:%s", a, expectedA)
-	}
-	if hex.EncodeToString(b) != expectedB {
-		t.Errorf("b: got:%x want:%s", b, expectedB)
-	}
-}
-
-func iterate(iterations int) ([]byte, []byte) {
-	const initValueHex = "0123456712345678234567893456789a"
-
-	initValue, _ := hex.DecodeString(initValueHex)
-
-	var a, b [16]byte
-	copy(a[:], initValue)
-	copy(b[:], initValue)
-
-	for i := 0; i < iterations; i++ {
-		c, _ := NewCipher(b[:])
-		c.Encrypt(a[:8], a[:8])
-		c.Encrypt(a[8:], a[8:])
-		c, _ = NewCipher(a[:])
-		c.Encrypt(b[:8], b[:8])
-		c.Encrypt(b[8:], b[8:])
-	}
-
-	return a[:], b[:]
-}
-
-func TestLimited(t *testing.T) {
-	a, b := iterate(1000)
-
-	const expectedA = "23f73b14b02a2ad7dfb9f2c35644798d"
-	const expectedB = "e5bf37eff14c456a40b21ce369370a9f"
-
-	if hex.EncodeToString(a) != expectedA {
-		t.Errorf("a: got:%x want:%s", a, expectedA)
-	}
-	if hex.EncodeToString(b) != expectedB {
-		t.Errorf("b: got:%x want:%s", b, expectedB)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go
deleted file mode 100644
index e28f49d..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539.
-package chacha20poly1305 // import "golang.org/x/crypto/chacha20poly1305"
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-	"errors"
-)
-
-const (
-	// KeySize is the size of the key used by this AEAD, in bytes.
-	KeySize = 32
-	// NonceSize is the size of the nonce used with this AEAD, in bytes.
-	NonceSize = 12
-)
-
-type chacha20poly1305 struct {
-	key [8]uint32
-}
-
-// New returns a ChaCha20-Poly1305 AEAD that uses the given, 256-bit key.
-func New(key []byte) (cipher.AEAD, error) {
-	if len(key) != KeySize {
-		return nil, errors.New("chacha20poly1305: bad key length")
-	}
-	ret := new(chacha20poly1305)
-	ret.key[0] = binary.LittleEndian.Uint32(key[0:4])
-	ret.key[1] = binary.LittleEndian.Uint32(key[4:8])
-	ret.key[2] = binary.LittleEndian.Uint32(key[8:12])
-	ret.key[3] = binary.LittleEndian.Uint32(key[12:16])
-	ret.key[4] = binary.LittleEndian.Uint32(key[16:20])
-	ret.key[5] = binary.LittleEndian.Uint32(key[20:24])
-	ret.key[6] = binary.LittleEndian.Uint32(key[24:28])
-	ret.key[7] = binary.LittleEndian.Uint32(key[28:32])
-	return ret, nil
-}
-
-func (c *chacha20poly1305) NonceSize() int {
-	return NonceSize
-}
-
-func (c *chacha20poly1305) Overhead() int {
-	return 16
-}
-
-func (c *chacha20poly1305) Seal(dst, nonce, plaintext, additionalData []byte) []byte {
-	if len(nonce) != NonceSize {
-		panic("chacha20poly1305: bad nonce length passed to Seal")
-	}
-
-	if uint64(len(plaintext)) > (1<<38)-64 {
-		panic("chacha20poly1305: plaintext too large")
-	}
-
-	return c.seal(dst, nonce, plaintext, additionalData)
-}
-
-var errOpen = errors.New("chacha20poly1305: message authentication failed")
-
-func (c *chacha20poly1305) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	if len(nonce) != NonceSize {
-		panic("chacha20poly1305: bad nonce length passed to Open")
-	}
-	if len(ciphertext) < 16 {
-		return nil, errOpen
-	}
-	if uint64(len(ciphertext)) > (1<<38)-48 {
-		panic("chacha20poly1305: ciphertext too large")
-	}
-
-	return c.open(dst, nonce, ciphertext, additionalData)
-}
-
-// sliceForAppend takes a slice and a requested number of bytes. It returns a
-// slice with the contents of the given slice followed by that many bytes and a
-// second slice that aliases into it and contains only the extra bytes. If the
-// original slice has sufficient capacity then no allocation is performed.
-func sliceForAppend(in []byte, n int) (head, tail []byte) {
-	if total := len(in) + n; cap(in) >= total {
-		head = in[:total]
-	} else {
-		head = make([]byte, total)
-		copy(head, in)
-	}
-	tail = head[len(in):]
-	return
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go
deleted file mode 100644
index ec13d13..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.go
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7,amd64,!gccgo,!appengine
-
-package chacha20poly1305
-
-import (
-	"encoding/binary"
-
-	"golang.org/x/crypto/internal/subtle"
-	"golang.org/x/sys/cpu"
-)
-
-//go:noescape
-func chacha20Poly1305Open(dst []byte, key []uint32, src, ad []byte) bool
-
-//go:noescape
-func chacha20Poly1305Seal(dst []byte, key []uint32, src, ad []byte)
-
-var (
-	useASM  = cpu.X86.HasSSSE3
-	useAVX2 = cpu.X86.HasAVX2 && cpu.X86.HasBMI2
-)
-
-// setupState writes a ChaCha20 input matrix to state. See
-// https://tools.ietf.org/html/rfc7539#section-2.3.
-func setupState(state *[16]uint32, key *[8]uint32, nonce []byte) {
-	state[0] = 0x61707865
-	state[1] = 0x3320646e
-	state[2] = 0x79622d32
-	state[3] = 0x6b206574
-
-	state[4] = key[0]
-	state[5] = key[1]
-	state[6] = key[2]
-	state[7] = key[3]
-	state[8] = key[4]
-	state[9] = key[5]
-	state[10] = key[6]
-	state[11] = key[7]
-
-	state[12] = 0
-	state[13] = binary.LittleEndian.Uint32(nonce[:4])
-	state[14] = binary.LittleEndian.Uint32(nonce[4:8])
-	state[15] = binary.LittleEndian.Uint32(nonce[8:12])
-}
-
-func (c *chacha20poly1305) seal(dst, nonce, plaintext, additionalData []byte) []byte {
-	if !useASM {
-		return c.sealGeneric(dst, nonce, plaintext, additionalData)
-	}
-
-	var state [16]uint32
-	setupState(&state, &c.key, nonce)
-
-	ret, out := sliceForAppend(dst, len(plaintext)+16)
-	if subtle.InexactOverlap(out, plaintext) {
-		panic("chacha20poly1305: invalid buffer overlap")
-	}
-	chacha20Poly1305Seal(out[:], state[:], plaintext, additionalData)
-	return ret
-}
-
-func (c *chacha20poly1305) open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	if !useASM {
-		return c.openGeneric(dst, nonce, ciphertext, additionalData)
-	}
-
-	var state [16]uint32
-	setupState(&state, &c.key, nonce)
-
-	ciphertext = ciphertext[:len(ciphertext)-16]
-	ret, out := sliceForAppend(dst, len(ciphertext))
-	if subtle.InexactOverlap(out, ciphertext) {
-		panic("chacha20poly1305: invalid buffer overlap")
-	}
-	if !chacha20Poly1305Open(out, state[:], ciphertext, additionalData) {
-		for i := range out {
-			out[i] = 0
-		}
-		return nil, errOpen
-	}
-
-	return ret, nil
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.s b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.s
deleted file mode 100644
index af76bbc..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_amd64.s
+++ /dev/null
@@ -1,2695 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file was originally from https://golang.org/cl/24717 by Vlad Krasnov of CloudFlare.
-
-// +build go1.7,amd64,!gccgo,!appengine
-
-#include "textflag.h"
-// General register allocation
-#define oup DI
-#define inp SI
-#define inl BX
-#define adp CX // free to reuse, after we hash the additional data
-#define keyp R8 // free to reuse, when we copy the key to stack
-#define itr2 R9 // general iterator
-#define itr1 CX // general iterator
-#define acc0 R10
-#define acc1 R11
-#define acc2 R12
-#define t0 R13
-#define t1 R14
-#define t2 R15
-#define t3 R8
-// Register and stack allocation for the SSE code
-#define rStore (0*16)(BP)
-#define sStore (1*16)(BP)
-#define state1Store (2*16)(BP)
-#define state2Store (3*16)(BP)
-#define tmpStore (4*16)(BP)
-#define ctr0Store (5*16)(BP)
-#define ctr1Store (6*16)(BP)
-#define ctr2Store (7*16)(BP)
-#define ctr3Store (8*16)(BP)
-#define A0 X0
-#define A1 X1
-#define A2 X2
-#define B0 X3
-#define B1 X4
-#define B2 X5
-#define C0 X6
-#define C1 X7
-#define C2 X8
-#define D0 X9
-#define D1 X10
-#define D2 X11
-#define T0 X12
-#define T1 X13
-#define T2 X14
-#define T3 X15
-#define A3 T0
-#define B3 T1
-#define C3 T2
-#define D3 T3
-// Register and stack allocation for the AVX2 code
-#define rsStoreAVX2 (0*32)(BP)
-#define state1StoreAVX2 (1*32)(BP)
-#define state2StoreAVX2 (2*32)(BP)
-#define ctr0StoreAVX2 (3*32)(BP)
-#define ctr1StoreAVX2 (4*32)(BP)
-#define ctr2StoreAVX2 (5*32)(BP)
-#define ctr3StoreAVX2 (6*32)(BP)
-#define tmpStoreAVX2 (7*32)(BP) // 256 bytes on stack
-#define AA0 Y0
-#define AA1 Y5
-#define AA2 Y6
-#define AA3 Y7
-#define BB0 Y14
-#define BB1 Y9
-#define BB2 Y10
-#define BB3 Y11
-#define CC0 Y12
-#define CC1 Y13
-#define CC2 Y8
-#define CC3 Y15
-#define DD0 Y4
-#define DD1 Y1
-#define DD2 Y2
-#define DD3 Y3
-#define TT0 DD3
-#define TT1 AA3
-#define TT2 BB3
-#define TT3 CC3
-// ChaCha20 constants
-DATA ·chacha20Constants<>+0x00(SB)/4, $0x61707865
-DATA ·chacha20Constants<>+0x04(SB)/4, $0x3320646e
-DATA ·chacha20Constants<>+0x08(SB)/4, $0x79622d32
-DATA ·chacha20Constants<>+0x0c(SB)/4, $0x6b206574
-DATA ·chacha20Constants<>+0x10(SB)/4, $0x61707865
-DATA ·chacha20Constants<>+0x14(SB)/4, $0x3320646e
-DATA ·chacha20Constants<>+0x18(SB)/4, $0x79622d32
-DATA ·chacha20Constants<>+0x1c(SB)/4, $0x6b206574
-// <<< 16 with PSHUFB
-DATA ·rol16<>+0x00(SB)/8, $0x0504070601000302
-DATA ·rol16<>+0x08(SB)/8, $0x0D0C0F0E09080B0A
-DATA ·rol16<>+0x10(SB)/8, $0x0504070601000302
-DATA ·rol16<>+0x18(SB)/8, $0x0D0C0F0E09080B0A
-// <<< 8 with PSHUFB
-DATA ·rol8<>+0x00(SB)/8, $0x0605040702010003
-DATA ·rol8<>+0x08(SB)/8, $0x0E0D0C0F0A09080B
-DATA ·rol8<>+0x10(SB)/8, $0x0605040702010003
-DATA ·rol8<>+0x18(SB)/8, $0x0E0D0C0F0A09080B
-
-DATA ·avx2InitMask<>+0x00(SB)/8, $0x0
-DATA ·avx2InitMask<>+0x08(SB)/8, $0x0
-DATA ·avx2InitMask<>+0x10(SB)/8, $0x1
-DATA ·avx2InitMask<>+0x18(SB)/8, $0x0
-
-DATA ·avx2IncMask<>+0x00(SB)/8, $0x2
-DATA ·avx2IncMask<>+0x08(SB)/8, $0x0
-DATA ·avx2IncMask<>+0x10(SB)/8, $0x2
-DATA ·avx2IncMask<>+0x18(SB)/8, $0x0
-// Poly1305 key clamp
-DATA ·polyClampMask<>+0x00(SB)/8, $0x0FFFFFFC0FFFFFFF
-DATA ·polyClampMask<>+0x08(SB)/8, $0x0FFFFFFC0FFFFFFC
-DATA ·polyClampMask<>+0x10(SB)/8, $0xFFFFFFFFFFFFFFFF
-DATA ·polyClampMask<>+0x18(SB)/8, $0xFFFFFFFFFFFFFFFF
-
-DATA ·sseIncMask<>+0x00(SB)/8, $0x1
-DATA ·sseIncMask<>+0x08(SB)/8, $0x0
-// To load/store the last < 16 bytes in a buffer
-DATA ·andMask<>+0x00(SB)/8, $0x00000000000000ff
-DATA ·andMask<>+0x08(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x10(SB)/8, $0x000000000000ffff
-DATA ·andMask<>+0x18(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x20(SB)/8, $0x0000000000ffffff
-DATA ·andMask<>+0x28(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x30(SB)/8, $0x00000000ffffffff
-DATA ·andMask<>+0x38(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x40(SB)/8, $0x000000ffffffffff
-DATA ·andMask<>+0x48(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x50(SB)/8, $0x0000ffffffffffff
-DATA ·andMask<>+0x58(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x60(SB)/8, $0x00ffffffffffffff
-DATA ·andMask<>+0x68(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x70(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0x78(SB)/8, $0x0000000000000000
-DATA ·andMask<>+0x80(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0x88(SB)/8, $0x00000000000000ff
-DATA ·andMask<>+0x90(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0x98(SB)/8, $0x000000000000ffff
-DATA ·andMask<>+0xa0(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0xa8(SB)/8, $0x0000000000ffffff
-DATA ·andMask<>+0xb0(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0xb8(SB)/8, $0x00000000ffffffff
-DATA ·andMask<>+0xc0(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0xc8(SB)/8, $0x000000ffffffffff
-DATA ·andMask<>+0xd0(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0xd8(SB)/8, $0x0000ffffffffffff
-DATA ·andMask<>+0xe0(SB)/8, $0xffffffffffffffff
-DATA ·andMask<>+0xe8(SB)/8, $0x00ffffffffffffff
-
-GLOBL ·chacha20Constants<>(SB), (NOPTR+RODATA), $32
-GLOBL ·rol16<>(SB), (NOPTR+RODATA), $32
-GLOBL ·rol8<>(SB), (NOPTR+RODATA), $32
-GLOBL ·sseIncMask<>(SB), (NOPTR+RODATA), $16
-GLOBL ·avx2IncMask<>(SB), (NOPTR+RODATA), $32
-GLOBL ·avx2InitMask<>(SB), (NOPTR+RODATA), $32
-GLOBL ·polyClampMask<>(SB), (NOPTR+RODATA), $32
-GLOBL ·andMask<>(SB), (NOPTR+RODATA), $240
-// No PALIGNR in Go ASM yet (but VPALIGNR is present).
-#define shiftB0Left BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xdb; BYTE $0x04 // PALIGNR $4, X3, X3
-#define shiftB1Left BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xe4; BYTE $0x04 // PALIGNR $4, X4, X4
-#define shiftB2Left BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xed; BYTE $0x04 // PALIGNR $4, X5, X5
-#define shiftB3Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xed; BYTE $0x04 // PALIGNR $4, X13, X13
-#define shiftC0Left BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xf6; BYTE $0x08 // PALIGNR $8, X6, X6
-#define shiftC1Left BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xff; BYTE $0x08 // PALIGNR $8, X7, X7
-#define shiftC2Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xc0; BYTE $0x08 // PALIGNR $8, X8, X8
-#define shiftC3Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xf6; BYTE $0x08 // PALIGNR $8, X14, X14
-#define shiftD0Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xc9; BYTE $0x0c // PALIGNR $12, X9, X9
-#define shiftD1Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xd2; BYTE $0x0c // PALIGNR $12, X10, X10
-#define shiftD2Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xdb; BYTE $0x0c // PALIGNR $12, X11, X11
-#define shiftD3Left BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xff; BYTE $0x0c // PALIGNR $12, X15, X15
-#define shiftB0Right BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xdb; BYTE $0x0c // PALIGNR $12, X3, X3
-#define shiftB1Right BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xe4; BYTE $0x0c // PALIGNR $12, X4, X4
-#define shiftB2Right BYTE $0x66; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xed; BYTE $0x0c // PALIGNR $12, X5, X5
-#define shiftB3Right BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xed; BYTE $0x0c // PALIGNR $12, X13, X13
-#define shiftC0Right shiftC0Left
-#define shiftC1Right shiftC1Left
-#define shiftC2Right shiftC2Left
-#define shiftC3Right shiftC3Left
-#define shiftD0Right BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xc9; BYTE $0x04 // PALIGNR $4, X9, X9
-#define shiftD1Right BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xd2; BYTE $0x04 // PALIGNR $4, X10, X10
-#define shiftD2Right BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xdb; BYTE $0x04 // PALIGNR $4, X11, X11
-#define shiftD3Right BYTE $0x66; BYTE $0x45; BYTE $0x0f; BYTE $0x3a; BYTE $0x0f; BYTE $0xff; BYTE $0x04 // PALIGNR $4, X15, X15
-// Some macros
-#define chachaQR(A, B, C, D, T) \
-	PADDD B, A; PXOR A, D; PSHUFB ·rol16<>(SB), D                            \
-	PADDD D, C; PXOR C, B; MOVO B, T; PSLLL $12, T; PSRLL $20, B; PXOR T, B \
-	PADDD B, A; PXOR A, D; PSHUFB ·rol8<>(SB), D                             \
-	PADDD D, C; PXOR C, B; MOVO B, T; PSLLL $7, T; PSRLL $25, B; PXOR T, B
-
-#define chachaQR_AVX2(A, B, C, D, T) \
-	VPADDD B, A, A; VPXOR A, D, D; VPSHUFB ·rol16<>(SB), D, D                         \
-	VPADDD D, C, C; VPXOR C, B, B; VPSLLD $12, B, T; VPSRLD $20, B, B; VPXOR T, B, B \
-	VPADDD B, A, A; VPXOR A, D, D; VPSHUFB ·rol8<>(SB), D, D                          \
-	VPADDD D, C, C; VPXOR C, B, B; VPSLLD $7, B, T; VPSRLD $25, B, B; VPXOR T, B, B
-
-#define polyAdd(S) ADDQ S, acc0; ADCQ 8+S, acc1; ADCQ $1, acc2
-#define polyMulStage1 MOVQ (0*8)(BP), AX; MOVQ AX, t2; MULQ acc0; MOVQ AX, t0; MOVQ DX, t1; MOVQ (0*8)(BP), AX; MULQ acc1; IMULQ acc2, t2; ADDQ AX, t1; ADCQ DX, t2
-#define polyMulStage2 MOVQ (1*8)(BP), AX; MOVQ AX, t3; MULQ acc0; ADDQ AX, t1; ADCQ $0, DX; MOVQ DX, acc0; MOVQ (1*8)(BP), AX; MULQ acc1; ADDQ AX, t2; ADCQ $0, DX
-#define polyMulStage3 IMULQ acc2, t3; ADDQ acc0, t2; ADCQ DX, t3
-#define polyMulReduceStage MOVQ t0, acc0; MOVQ t1, acc1; MOVQ t2, acc2; ANDQ $3, acc2; MOVQ t2, t0; ANDQ $-4, t0; MOVQ t3, t1; SHRQ $2, t2:t3; SHRQ $2, t3; ADDQ t0, acc0; ADCQ t1, acc1; ADCQ $0, acc2; ADDQ t2, acc0; ADCQ t3, acc1; ADCQ $0, acc2
-
-#define polyMulStage1_AVX2 MOVQ (0*8)(BP), DX; MOVQ DX, t2; MULXQ acc0, t0, t1; IMULQ acc2, t2; MULXQ acc1, AX, DX; ADDQ AX, t1; ADCQ DX, t2
-#define polyMulStage2_AVX2 MOVQ (1*8)(BP), DX; MULXQ acc0, acc0, AX; ADDQ acc0, t1; MULXQ acc1, acc1, t3; ADCQ acc1, t2; ADCQ $0, t3
-#define polyMulStage3_AVX2 IMULQ acc2, DX; ADDQ AX, t2; ADCQ DX, t3
-
-#define polyMul polyMulStage1; polyMulStage2; polyMulStage3; polyMulReduceStage
-#define polyMulAVX2 polyMulStage1_AVX2; polyMulStage2_AVX2; polyMulStage3_AVX2; polyMulReduceStage
-// ----------------------------------------------------------------------------
-TEXT polyHashADInternal<>(SB), NOSPLIT, $0
-	// adp points to beginning of additional data
-	// itr2 holds ad length
-	XORQ acc0, acc0
-	XORQ acc1, acc1
-	XORQ acc2, acc2
-	CMPQ itr2, $13
-	JNE  hashADLoop
-
-openFastTLSAD:
-	// Special treatment for the TLS case of 13 bytes
-	MOVQ (adp), acc0
-	MOVQ 5(adp), acc1
-	SHRQ $24, acc1
-	MOVQ $1, acc2
-	polyMul
-	RET
-
-hashADLoop:
-	// Hash in 16 byte chunks
-	CMPQ itr2, $16
-	JB   hashADTail
-	polyAdd(0(adp))
-	LEAQ (1*16)(adp), adp
-	SUBQ $16, itr2
-	polyMul
-	JMP  hashADLoop
-
-hashADTail:
-	CMPQ itr2, $0
-	JE   hashADDone
-
-	// Hash last < 16 byte tail
-	XORQ t0, t0
-	XORQ t1, t1
-	XORQ t2, t2
-	ADDQ itr2, adp
-
-hashADTailLoop:
-	SHLQ $8, t1:t0
-	SHLQ $8, t0
-	MOVB -1(adp), t2
-	XORQ t2, t0
-	DECQ adp
-	DECQ itr2
-	JNE  hashADTailLoop
-
-hashADTailFinish:
-	ADDQ t0, acc0; ADCQ t1, acc1; ADCQ $1, acc2
-	polyMul
-
-	// Finished AD
-hashADDone:
-	RET
-
-// ----------------------------------------------------------------------------
-// func chacha20Poly1305Open(dst, key, src, ad []byte) bool
-TEXT ·chacha20Poly1305Open(SB), 0, $288-97
-	// For aligned stack access
-	MOVQ SP, BP
-	ADDQ $32, BP
-	ANDQ $-32, BP
-	MOVQ dst+0(FP), oup
-	MOVQ key+24(FP), keyp
-	MOVQ src+48(FP), inp
-	MOVQ src_len+56(FP), inl
-	MOVQ ad+72(FP), adp
-
-	// Check for AVX2 support
-	CMPB ·useAVX2(SB), $1
-	JE   chacha20Poly1305Open_AVX2
-
-	// Special optimization, for very short buffers
-	CMPQ inl, $128
-	JBE  openSSE128 // About 16% faster
-
-	// For long buffers, prepare the poly key first
-	MOVOU ·chacha20Constants<>(SB), A0
-	MOVOU (1*16)(keyp), B0
-	MOVOU (2*16)(keyp), C0
-	MOVOU (3*16)(keyp), D0
-	MOVO  D0, T1
-
-	// Store state on stack for future use
-	MOVO B0, state1Store
-	MOVO C0, state2Store
-	MOVO D0, ctr3Store
-	MOVQ $10, itr2
-
-openSSEPreparePolyKey:
-	chachaQR(A0, B0, C0, D0, T0)
-	shiftB0Left;  shiftC0Left; shiftD0Left
-	chachaQR(A0, B0, C0, D0, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-	DECQ          itr2
-	JNE           openSSEPreparePolyKey
-
-	// A0|B0 hold the Poly1305 32-byte key, C0,D0 can be discarded
-	PADDL ·chacha20Constants<>(SB), A0; PADDL state1Store, B0
-
-	// Clamp and store the key
-	PAND ·polyClampMask<>(SB), A0
-	MOVO A0, rStore; MOVO B0, sStore
-
-	// Hash AAD
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-
-openSSEMainLoop:
-	CMPQ inl, $256
-	JB   openSSEMainLoopDone
-
-	// Load state, increment counter blocks
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO A2, A3; MOVO B2, B3; MOVO C2, C3; MOVO D2, D3; PADDL ·sseIncMask<>(SB), D3
-
-	// Store counters
-	MOVO D0, ctr0Store; MOVO D1, ctr1Store; MOVO D2, ctr2Store; MOVO D3, ctr3Store
-
-	// There are 10 ChaCha20 iterations of 2QR each, so for 6 iterations we hash 2 blocks, and for the remaining 4 only 1 block - for a total of 16
-	MOVQ $4, itr1
-	MOVQ inp, itr2
-
-openSSEInternalLoop:
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	polyAdd(0(itr2))
-	shiftB0Left;  shiftB1Left; shiftB2Left; shiftB3Left
-	shiftC0Left;  shiftC1Left; shiftC2Left; shiftC3Left
-	shiftD0Left;  shiftD1Left; shiftD2Left; shiftD3Left
-	polyMulStage1
-	polyMulStage2
-	LEAQ          (2*8)(itr2), itr2
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	polyMulStage3
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	polyMulReduceStage
-	shiftB0Right; shiftB1Right; shiftB2Right; shiftB3Right
-	shiftC0Right; shiftC1Right; shiftC2Right; shiftC3Right
-	shiftD0Right; shiftD1Right; shiftD2Right; shiftD3Right
-	DECQ          itr1
-	JGE           openSSEInternalLoop
-
-	polyAdd(0(itr2))
-	polyMul
-	LEAQ (2*8)(itr2), itr2
-
-	CMPQ itr1, $-6
-	JG   openSSEInternalLoop
-
-	// Add in the state
-	PADDD ·chacha20Constants<>(SB), A0; PADDD ·chacha20Constants<>(SB), A1; PADDD ·chacha20Constants<>(SB), A2; PADDD ·chacha20Constants<>(SB), A3
-	PADDD state1Store, B0; PADDD state1Store, B1; PADDD state1Store, B2; PADDD state1Store, B3
-	PADDD state2Store, C0; PADDD state2Store, C1; PADDD state2Store, C2; PADDD state2Store, C3
-	PADDD ctr0Store, D0; PADDD ctr1Store, D1; PADDD ctr2Store, D2; PADDD ctr3Store, D3
-
-	// Load - xor - store
-	MOVO  D3, tmpStore
-	MOVOU (0*16)(inp), D3; PXOR D3, A0; MOVOU A0, (0*16)(oup)
-	MOVOU (1*16)(inp), D3; PXOR D3, B0; MOVOU B0, (1*16)(oup)
-	MOVOU (2*16)(inp), D3; PXOR D3, C0; MOVOU C0, (2*16)(oup)
-	MOVOU (3*16)(inp), D3; PXOR D3, D0; MOVOU D0, (3*16)(oup)
-	MOVOU (4*16)(inp), D0; PXOR D0, A1; MOVOU A1, (4*16)(oup)
-	MOVOU (5*16)(inp), D0; PXOR D0, B1; MOVOU B1, (5*16)(oup)
-	MOVOU (6*16)(inp), D0; PXOR D0, C1; MOVOU C1, (6*16)(oup)
-	MOVOU (7*16)(inp), D0; PXOR D0, D1; MOVOU D1, (7*16)(oup)
-	MOVOU (8*16)(inp), D0; PXOR D0, A2; MOVOU A2, (8*16)(oup)
-	MOVOU (9*16)(inp), D0; PXOR D0, B2; MOVOU B2, (9*16)(oup)
-	MOVOU (10*16)(inp), D0; PXOR D0, C2; MOVOU C2, (10*16)(oup)
-	MOVOU (11*16)(inp), D0; PXOR D0, D2; MOVOU D2, (11*16)(oup)
-	MOVOU (12*16)(inp), D0; PXOR D0, A3; MOVOU A3, (12*16)(oup)
-	MOVOU (13*16)(inp), D0; PXOR D0, B3; MOVOU B3, (13*16)(oup)
-	MOVOU (14*16)(inp), D0; PXOR D0, C3; MOVOU C3, (14*16)(oup)
-	MOVOU (15*16)(inp), D0; PXOR tmpStore, D0; MOVOU D0, (15*16)(oup)
-	LEAQ  256(inp), inp
-	LEAQ  256(oup), oup
-	SUBQ  $256, inl
-	JMP   openSSEMainLoop
-
-openSSEMainLoopDone:
-	// Handle the various tail sizes efficiently
-	TESTQ inl, inl
-	JE    openSSEFinalize
-	CMPQ  inl, $64
-	JBE   openSSETail64
-	CMPQ  inl, $128
-	JBE   openSSETail128
-	CMPQ  inl, $192
-	JBE   openSSETail192
-	JMP   openSSETail256
-
-openSSEFinalize:
-	// Hash in the PT, AAD lengths
-	ADDQ ad_len+80(FP), acc0; ADCQ src_len+56(FP), acc1; ADCQ $1, acc2
-	polyMul
-
-	// Final reduce
-	MOVQ    acc0, t0
-	MOVQ    acc1, t1
-	MOVQ    acc2, t2
-	SUBQ    $-5, acc0
-	SBBQ    $-1, acc1
-	SBBQ    $3, acc2
-	CMOVQCS t0, acc0
-	CMOVQCS t1, acc1
-	CMOVQCS t2, acc2
-
-	// Add in the "s" part of the key
-	ADDQ 0+sStore, acc0
-	ADCQ 8+sStore, acc1
-
-	// Finally, constant time compare to the tag at the end of the message
-	XORQ    AX, AX
-	MOVQ    $1, DX
-	XORQ    (0*8)(inp), acc0
-	XORQ    (1*8)(inp), acc1
-	ORQ     acc1, acc0
-	CMOVQEQ DX, AX
-
-	// Return true iff tags are equal
-	MOVB AX, ret+96(FP)
-	RET
-
-// ----------------------------------------------------------------------------
-// Special optimization for buffers smaller than 129 bytes
-openSSE128:
-	// For up to 128 bytes of ciphertext and 64 bytes for the poly key, we require to process three blocks
-	MOVOU ·chacha20Constants<>(SB), A0; MOVOU (1*16)(keyp), B0; MOVOU (2*16)(keyp), C0; MOVOU (3*16)(keyp), D0
-	MOVO  A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO  A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO  B0, T1; MOVO C0, T2; MOVO D1, T3
-	MOVQ  $10, itr2
-
-openSSE128InnerCipherLoop:
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Left;  shiftB1Left; shiftB2Left
-	shiftC0Left;  shiftC1Left; shiftC2Left
-	shiftD0Left;  shiftD1Left; shiftD2Left
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Right; shiftB1Right; shiftB2Right
-	shiftC0Right; shiftC1Right; shiftC2Right
-	shiftD0Right; shiftD1Right; shiftD2Right
-	DECQ          itr2
-	JNE           openSSE128InnerCipherLoop
-
-	// A0|B0 hold the Poly1305 32-byte key, C0,D0 can be discarded
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1; PADDL ·chacha20Constants<>(SB), A2
-	PADDL T1, B0; PADDL T1, B1; PADDL T1, B2
-	PADDL T2, C1; PADDL T2, C2
-	PADDL T3, D1; PADDL ·sseIncMask<>(SB), T3; PADDL T3, D2
-
-	// Clamp and store the key
-	PAND  ·polyClampMask<>(SB), A0
-	MOVOU A0, rStore; MOVOU B0, sStore
-
-	// Hash
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-
-openSSE128Open:
-	CMPQ inl, $16
-	JB   openSSETail16
-	SUBQ $16, inl
-
-	// Load for hashing
-	polyAdd(0(inp))
-
-	// Load for decryption
-	MOVOU (inp), T0; PXOR T0, A1; MOVOU A1, (oup)
-	LEAQ  (1*16)(inp), inp
-	LEAQ  (1*16)(oup), oup
-	polyMul
-
-	// Shift the stream "left"
-	MOVO B1, A1
-	MOVO C1, B1
-	MOVO D1, C1
-	MOVO A2, D1
-	MOVO B2, A2
-	MOVO C2, B2
-	MOVO D2, C2
-	JMP  openSSE128Open
-
-openSSETail16:
-	TESTQ inl, inl
-	JE    openSSEFinalize
-
-	// We can safely load the CT from the end, because it is padded with the MAC
-	MOVQ   inl, itr2
-	SHLQ   $4, itr2
-	LEAQ   ·andMask<>(SB), t0
-	MOVOU  (inp), T0
-	ADDQ   inl, inp
-	PAND   -16(t0)(itr2*1), T0
-	MOVO   T0, 0+tmpStore
-	MOVQ   T0, t0
-	MOVQ   8+tmpStore, t1
-	PXOR   A1, T0
-
-	// We can only store one byte at a time, since plaintext can be shorter than 16 bytes
-openSSETail16Store:
-	MOVQ T0, t3
-	MOVB t3, (oup)
-	PSRLDQ $1, T0
-	INCQ   oup
-	DECQ   inl
-	JNE    openSSETail16Store
-	ADDQ   t0, acc0; ADCQ t1, acc1; ADCQ $1, acc2
-	polyMul
-	JMP    openSSEFinalize
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 64 bytes of ciphertext
-openSSETail64:
-	// Need to decrypt up to 64 bytes - prepare single block
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0; MOVO D0, ctr0Store
-	XORQ itr2, itr2
-	MOVQ inl, itr1
-	CMPQ itr1, $16
-	JB   openSSETail64LoopB
-
-openSSETail64LoopA:
-	// Perform ChaCha rounds, while hashing the remaining input
-	polyAdd(0(inp)(itr2*1))
-	polyMul
-	SUBQ $16, itr1
-
-openSSETail64LoopB:
-	ADDQ          $16, itr2
-	chachaQR(A0, B0, C0, D0, T0)
-	shiftB0Left;  shiftC0Left; shiftD0Left
-	chachaQR(A0, B0, C0, D0, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-
-	CMPQ itr1, $16
-	JAE  openSSETail64LoopA
-
-	CMPQ itr2, $160
-	JNE  openSSETail64LoopB
-
-	PADDL ·chacha20Constants<>(SB), A0; PADDL state1Store, B0; PADDL state2Store, C0; PADDL ctr0Store, D0
-
-openSSETail64DecLoop:
-	CMPQ  inl, $16
-	JB    openSSETail64DecLoopDone
-	SUBQ  $16, inl
-	MOVOU (inp), T0
-	PXOR  T0, A0
-	MOVOU A0, (oup)
-	LEAQ  16(inp), inp
-	LEAQ  16(oup), oup
-	MOVO  B0, A0
-	MOVO  C0, B0
-	MOVO  D0, C0
-	JMP   openSSETail64DecLoop
-
-openSSETail64DecLoopDone:
-	MOVO A0, A1
-	JMP  openSSETail16
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 128 bytes of ciphertext
-openSSETail128:
-	// Need to decrypt up to 128 bytes - prepare two blocks
-	MOVO ·chacha20Constants<>(SB), A1; MOVO state1Store, B1; MOVO state2Store, C1; MOVO ctr3Store, D1; PADDL ·sseIncMask<>(SB), D1; MOVO D1, ctr0Store
-	MOVO A1, A0; MOVO B1, B0; MOVO C1, C0; MOVO D1, D0; PADDL ·sseIncMask<>(SB), D0; MOVO D0, ctr1Store
-	XORQ itr2, itr2
-	MOVQ inl, itr1
-	ANDQ $-16, itr1
-
-openSSETail128LoopA:
-	// Perform ChaCha rounds, while hashing the remaining input
-	polyAdd(0(inp)(itr2*1))
-	polyMul
-
-openSSETail128LoopB:
-	ADDQ          $16, itr2
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0)
-	shiftB0Left;  shiftC0Left; shiftD0Left
-	shiftB1Left;  shiftC1Left; shiftD1Left
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-	shiftB1Right; shiftC1Right; shiftD1Right
-
-	CMPQ itr2, itr1
-	JB   openSSETail128LoopA
-
-	CMPQ itr2, $160
-	JNE  openSSETail128LoopB
-
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1
-	PADDL state1Store, B0; PADDL state1Store, B1
-	PADDL state2Store, C0; PADDL state2Store, C1
-	PADDL ctr1Store, D0; PADDL ctr0Store, D1
-
-	MOVOU (0*16)(inp), T0; MOVOU (1*16)(inp), T1; MOVOU (2*16)(inp), T2; MOVOU (3*16)(inp), T3
-	PXOR  T0, A1; PXOR T1, B1; PXOR T2, C1; PXOR T3, D1
-	MOVOU A1, (0*16)(oup); MOVOU B1, (1*16)(oup); MOVOU C1, (2*16)(oup); MOVOU D1, (3*16)(oup)
-
-	SUBQ $64, inl
-	LEAQ 64(inp), inp
-	LEAQ 64(oup), oup
-	JMP  openSSETail64DecLoop
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 192 bytes of ciphertext
-openSSETail192:
-	// Need to decrypt up to 192 bytes - prepare three blocks
-	MOVO ·chacha20Constants<>(SB), A2; MOVO state1Store, B2; MOVO state2Store, C2; MOVO ctr3Store, D2; PADDL ·sseIncMask<>(SB), D2; MOVO D2, ctr0Store
-	MOVO A2, A1; MOVO B2, B1; MOVO C2, C1; MOVO D2, D1; PADDL ·sseIncMask<>(SB), D1; MOVO D1, ctr1Store
-	MOVO A1, A0; MOVO B1, B0; MOVO C1, C0; MOVO D1, D0; PADDL ·sseIncMask<>(SB), D0; MOVO D0, ctr2Store
-
-	MOVQ    inl, itr1
-	MOVQ    $160, itr2
-	CMPQ    itr1, $160
-	CMOVQGT itr2, itr1
-	ANDQ    $-16, itr1
-	XORQ    itr2, itr2
-
-openSSLTail192LoopA:
-	// Perform ChaCha rounds, while hashing the remaining input
-	polyAdd(0(inp)(itr2*1))
-	polyMul
-
-openSSLTail192LoopB:
-	ADDQ         $16, itr2
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Left; shiftC0Left; shiftD0Left
-	shiftB1Left; shiftC1Left; shiftD1Left
-	shiftB2Left; shiftC2Left; shiftD2Left
-
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-	shiftB1Right; shiftC1Right; shiftD1Right
-	shiftB2Right; shiftC2Right; shiftD2Right
-
-	CMPQ itr2, itr1
-	JB   openSSLTail192LoopA
-
-	CMPQ itr2, $160
-	JNE  openSSLTail192LoopB
-
-	CMPQ inl, $176
-	JB   openSSLTail192Store
-
-	polyAdd(160(inp))
-	polyMul
-
-	CMPQ inl, $192
-	JB   openSSLTail192Store
-
-	polyAdd(176(inp))
-	polyMul
-
-openSSLTail192Store:
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1; PADDL ·chacha20Constants<>(SB), A2
-	PADDL state1Store, B0; PADDL state1Store, B1; PADDL state1Store, B2
-	PADDL state2Store, C0; PADDL state2Store, C1; PADDL state2Store, C2
-	PADDL ctr2Store, D0; PADDL ctr1Store, D1; PADDL ctr0Store, D2
-
-	MOVOU (0*16)(inp), T0; MOVOU (1*16)(inp), T1; MOVOU (2*16)(inp), T2; MOVOU (3*16)(inp), T3
-	PXOR  T0, A2; PXOR T1, B2; PXOR T2, C2; PXOR T3, D2
-	MOVOU A2, (0*16)(oup); MOVOU B2, (1*16)(oup); MOVOU C2, (2*16)(oup); MOVOU D2, (3*16)(oup)
-
-	MOVOU (4*16)(inp), T0; MOVOU (5*16)(inp), T1; MOVOU (6*16)(inp), T2; MOVOU (7*16)(inp), T3
-	PXOR  T0, A1; PXOR T1, B1; PXOR T2, C1; PXOR T3, D1
-	MOVOU A1, (4*16)(oup); MOVOU B1, (5*16)(oup); MOVOU C1, (6*16)(oup); MOVOU D1, (7*16)(oup)
-
-	SUBQ $128, inl
-	LEAQ 128(inp), inp
-	LEAQ 128(oup), oup
-	JMP  openSSETail64DecLoop
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 256 bytes of ciphertext
-openSSETail256:
-	// Need to decrypt up to 256 bytes - prepare four blocks
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO A2, A3; MOVO B2, B3; MOVO C2, C3; MOVO D2, D3; PADDL ·sseIncMask<>(SB), D3
-
-	// Store counters
-	MOVO D0, ctr0Store; MOVO D1, ctr1Store; MOVO D2, ctr2Store; MOVO D3, ctr3Store
-	XORQ itr2, itr2
-
-openSSETail256Loop:
-	// This loop inteleaves 8 ChaCha quarter rounds with 1 poly multiplication
-	polyAdd(0(inp)(itr2*1))
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	shiftB0Left;  shiftB1Left; shiftB2Left; shiftB3Left
-	shiftC0Left;  shiftC1Left; shiftC2Left; shiftC3Left
-	shiftD0Left;  shiftD1Left; shiftD2Left; shiftD3Left
-	polyMulStage1
-	polyMulStage2
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	polyMulStage3
-	polyMulReduceStage
-	shiftB0Right; shiftB1Right; shiftB2Right; shiftB3Right
-	shiftC0Right; shiftC1Right; shiftC2Right; shiftC3Right
-	shiftD0Right; shiftD1Right; shiftD2Right; shiftD3Right
-	ADDQ          $2*8, itr2
-	CMPQ          itr2, $160
-	JB            openSSETail256Loop
-	MOVQ          inl, itr1
-	ANDQ          $-16, itr1
-
-openSSETail256HashLoop:
-	polyAdd(0(inp)(itr2*1))
-	polyMul
-	ADDQ $2*8, itr2
-	CMPQ itr2, itr1
-	JB   openSSETail256HashLoop
-
-	// Add in the state
-	PADDD ·chacha20Constants<>(SB), A0; PADDD ·chacha20Constants<>(SB), A1; PADDD ·chacha20Constants<>(SB), A2; PADDD ·chacha20Constants<>(SB), A3
-	PADDD state1Store, B0; PADDD state1Store, B1; PADDD state1Store, B2; PADDD state1Store, B3
-	PADDD state2Store, C0; PADDD state2Store, C1; PADDD state2Store, C2; PADDD state2Store, C3
-	PADDD ctr0Store, D0; PADDD ctr1Store, D1; PADDD ctr2Store, D2; PADDD ctr3Store, D3
-	MOVO  D3, tmpStore
-
-	// Load - xor - store
-	MOVOU (0*16)(inp), D3; PXOR D3, A0
-	MOVOU (1*16)(inp), D3; PXOR D3, B0
-	MOVOU (2*16)(inp), D3; PXOR D3, C0
-	MOVOU (3*16)(inp), D3; PXOR D3, D0
-	MOVOU A0, (0*16)(oup)
-	MOVOU B0, (1*16)(oup)
-	MOVOU C0, (2*16)(oup)
-	MOVOU D0, (3*16)(oup)
-	MOVOU (4*16)(inp), A0; MOVOU (5*16)(inp), B0; MOVOU (6*16)(inp), C0; MOVOU (7*16)(inp), D0
-	PXOR  A0, A1; PXOR B0, B1; PXOR C0, C1; PXOR D0, D1
-	MOVOU A1, (4*16)(oup); MOVOU B1, (5*16)(oup); MOVOU C1, (6*16)(oup); MOVOU D1, (7*16)(oup)
-	MOVOU (8*16)(inp), A0; MOVOU (9*16)(inp), B0; MOVOU (10*16)(inp), C0; MOVOU (11*16)(inp), D0
-	PXOR  A0, A2; PXOR B0, B2; PXOR C0, C2; PXOR D0, D2
-	MOVOU A2, (8*16)(oup); MOVOU B2, (9*16)(oup); MOVOU C2, (10*16)(oup); MOVOU D2, (11*16)(oup)
-	LEAQ  192(inp), inp
-	LEAQ  192(oup), oup
-	SUBQ  $192, inl
-	MOVO  A3, A0
-	MOVO  B3, B0
-	MOVO  C3, C0
-	MOVO  tmpStore, D0
-
-	JMP openSSETail64DecLoop
-
-// ----------------------------------------------------------------------------
-// ------------------------- AVX2 Code ----------------------------------------
-chacha20Poly1305Open_AVX2:
-	VZEROUPPER
-	VMOVDQU ·chacha20Constants<>(SB), AA0
-	BYTE    $0xc4; BYTE $0x42; BYTE $0x7d; BYTE $0x5a; BYTE $0x70; BYTE $0x10 // broadcasti128 16(r8), ymm14
-	BYTE    $0xc4; BYTE $0x42; BYTE $0x7d; BYTE $0x5a; BYTE $0x60; BYTE $0x20 // broadcasti128 32(r8), ymm12
-	BYTE    $0xc4; BYTE $0xc2; BYTE $0x7d; BYTE $0x5a; BYTE $0x60; BYTE $0x30 // broadcasti128 48(r8), ymm4
-	VPADDD  ·avx2InitMask<>(SB), DD0, DD0
-
-	// Special optimization, for very short buffers
-	CMPQ inl, $192
-	JBE  openAVX2192
-	CMPQ inl, $320
-	JBE  openAVX2320
-
-	// For the general key prepare the key first - as a byproduct we have 64 bytes of cipher stream
-	VMOVDQA BB0, state1StoreAVX2
-	VMOVDQA CC0, state2StoreAVX2
-	VMOVDQA DD0, ctr3StoreAVX2
-	MOVQ    $10, itr2
-
-openAVX2PreparePolyKey:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0)
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $12, DD0, DD0, DD0
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0)
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $4, DD0, DD0, DD0
-	DECQ     itr2
-	JNE      openAVX2PreparePolyKey
-
-	VPADDD ·chacha20Constants<>(SB), AA0, AA0
-	VPADDD state1StoreAVX2, BB0, BB0
-	VPADDD state2StoreAVX2, CC0, CC0
-	VPADDD ctr3StoreAVX2, DD0, DD0
-
-	VPERM2I128 $0x02, AA0, BB0, TT0
-
-	// Clamp and store poly key
-	VPAND   ·polyClampMask<>(SB), TT0, TT0
-	VMOVDQA TT0, rsStoreAVX2
-
-	// Stream for the first 64 bytes
-	VPERM2I128 $0x13, AA0, BB0, AA0
-	VPERM2I128 $0x13, CC0, DD0, BB0
-
-	// Hash AD + first 64 bytes
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-	XORQ itr1, itr1
-
-openAVX2InitialHash64:
-	polyAdd(0(inp)(itr1*1))
-	polyMulAVX2
-	ADDQ $16, itr1
-	CMPQ itr1, $64
-	JNE  openAVX2InitialHash64
-
-	// Decrypt the first 64 bytes
-	VPXOR   (0*32)(inp), AA0, AA0
-	VPXOR   (1*32)(inp), BB0, BB0
-	VMOVDQU AA0, (0*32)(oup)
-	VMOVDQU BB0, (1*32)(oup)
-	LEAQ    (2*32)(inp), inp
-	LEAQ    (2*32)(oup), oup
-	SUBQ    $64, inl
-
-openAVX2MainLoop:
-	CMPQ inl, $512
-	JB   openAVX2MainLoopDone
-
-	// Load state, increment counter blocks, store the incremented counters
-	VMOVDQU ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3
-	VMOVDQA ctr3StoreAVX2, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2; VPADDD ·avx2IncMask<>(SB), DD2, DD3
-	VMOVDQA DD0, ctr0StoreAVX2; VMOVDQA DD1, ctr1StoreAVX2; VMOVDQA DD2, ctr2StoreAVX2; VMOVDQA DD3, ctr3StoreAVX2
-	XORQ    itr1, itr1
-
-openAVX2InternalLoop:
-	// Lets just say this spaghetti loop interleaves 2 quarter rounds with 3 poly multiplications
-	// Effectively per 512 bytes of stream we hash 480 bytes of ciphertext
-	polyAdd(0*8(inp)(itr1*1))
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	polyMulStage1_AVX2
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	polyMulStage2_AVX2
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyMulStage3_AVX2
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulReduceStage
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	polyAdd(2*8(inp)(itr1*1))
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	polyMulStage1_AVX2
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulStage2_AVX2
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $4, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2; VPALIGNR $12, DD3, DD3, DD3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	polyMulStage3_AVX2
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	polyMulReduceStage
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyAdd(4*8(inp)(itr1*1))
-	LEAQ     (6*8)(itr1), itr1
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulStage1_AVX2
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	polyMulStage2_AVX2
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	polyMulStage3_AVX2
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulReduceStage
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $12, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2; VPALIGNR $4, DD3, DD3, DD3
-	CMPQ     itr1, $480
-	JNE      openAVX2InternalLoop
-
-	VPADDD  ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2; VPADDD ·chacha20Constants<>(SB), AA3, AA3
-	VPADDD  state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2; VPADDD state1StoreAVX2, BB3, BB3
-	VPADDD  state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2; VPADDD state2StoreAVX2, CC3, CC3
-	VPADDD  ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2; VPADDD ctr3StoreAVX2, DD3, DD3
-	VMOVDQA CC3, tmpStoreAVX2
-
-	// We only hashed 480 of the 512 bytes available - hash the remaining 32 here
-	polyAdd(480(inp))
-	polyMulAVX2
-	VPERM2I128 $0x02, AA0, BB0, CC3; VPERM2I128 $0x13, AA0, BB0, BB0; VPERM2I128 $0x02, CC0, DD0, AA0; VPERM2I128 $0x13, CC0, DD0, CC0
-	VPXOR      (0*32)(inp), CC3, CC3; VPXOR (1*32)(inp), AA0, AA0; VPXOR (2*32)(inp), BB0, BB0; VPXOR (3*32)(inp), CC0, CC0
-	VMOVDQU    CC3, (0*32)(oup); VMOVDQU AA0, (1*32)(oup); VMOVDQU BB0, (2*32)(oup); VMOVDQU CC0, (3*32)(oup)
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-	VPXOR      (4*32)(inp), AA0, AA0; VPXOR (5*32)(inp), BB0, BB0; VPXOR (6*32)(inp), CC0, CC0; VPXOR (7*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (4*32)(oup); VMOVDQU BB0, (5*32)(oup); VMOVDQU CC0, (6*32)(oup); VMOVDQU DD0, (7*32)(oup)
-
-	// and here
-	polyAdd(496(inp))
-	polyMulAVX2
-	VPERM2I128 $0x02, AA2, BB2, AA0; VPERM2I128 $0x02, CC2, DD2, BB0; VPERM2I128 $0x13, AA2, BB2, CC0; VPERM2I128 $0x13, CC2, DD2, DD0
-	VPXOR      (8*32)(inp), AA0, AA0; VPXOR (9*32)(inp), BB0, BB0; VPXOR (10*32)(inp), CC0, CC0; VPXOR (11*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (8*32)(oup); VMOVDQU BB0, (9*32)(oup); VMOVDQU CC0, (10*32)(oup); VMOVDQU DD0, (11*32)(oup)
-	VPERM2I128 $0x02, AA3, BB3, AA0; VPERM2I128 $0x02, tmpStoreAVX2, DD3, BB0; VPERM2I128 $0x13, AA3, BB3, CC0; VPERM2I128 $0x13, tmpStoreAVX2, DD3, DD0
-	VPXOR      (12*32)(inp), AA0, AA0; VPXOR (13*32)(inp), BB0, BB0; VPXOR (14*32)(inp), CC0, CC0; VPXOR (15*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (12*32)(oup); VMOVDQU BB0, (13*32)(oup); VMOVDQU CC0, (14*32)(oup); VMOVDQU DD0, (15*32)(oup)
-	LEAQ       (32*16)(inp), inp
-	LEAQ       (32*16)(oup), oup
-	SUBQ       $(32*16), inl
-	JMP        openAVX2MainLoop
-
-openAVX2MainLoopDone:
-	// Handle the various tail sizes efficiently
-	TESTQ inl, inl
-	JE    openSSEFinalize
-	CMPQ  inl, $128
-	JBE   openAVX2Tail128
-	CMPQ  inl, $256
-	JBE   openAVX2Tail256
-	CMPQ  inl, $384
-	JBE   openAVX2Tail384
-	JMP   openAVX2Tail512
-
-// ----------------------------------------------------------------------------
-// Special optimization for buffers smaller than 193 bytes
-openAVX2192:
-	// For up to 192 bytes of ciphertext and 64 bytes for the poly key, we process four blocks
-	VMOVDQA AA0, AA1
-	VMOVDQA BB0, BB1
-	VMOVDQA CC0, CC1
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA AA0, AA2
-	VMOVDQA BB0, BB2
-	VMOVDQA CC0, CC2
-	VMOVDQA DD0, DD2
-	VMOVDQA DD1, TT3
-	MOVQ    $10, itr2
-
-openAVX2192InnerCipherLoop:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR   $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1
-	VPALIGNR   $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR   $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR   $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1
-	VPALIGNR   $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR   $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1
-	DECQ       itr2
-	JNE        openAVX2192InnerCipherLoop
-	VPADDD     AA2, AA0, AA0; VPADDD AA2, AA1, AA1
-	VPADDD     BB2, BB0, BB0; VPADDD BB2, BB1, BB1
-	VPADDD     CC2, CC0, CC0; VPADDD CC2, CC1, CC1
-	VPADDD     DD2, DD0, DD0; VPADDD TT3, DD1, DD1
-	VPERM2I128 $0x02, AA0, BB0, TT0
-
-	// Clamp and store poly key
-	VPAND   ·polyClampMask<>(SB), TT0, TT0
-	VMOVDQA TT0, rsStoreAVX2
-
-	// Stream for up to 192 bytes
-	VPERM2I128 $0x13, AA0, BB0, AA0
-	VPERM2I128 $0x13, CC0, DD0, BB0
-	VPERM2I128 $0x02, AA1, BB1, CC0
-	VPERM2I128 $0x02, CC1, DD1, DD0
-	VPERM2I128 $0x13, AA1, BB1, AA1
-	VPERM2I128 $0x13, CC1, DD1, BB1
-
-openAVX2ShortOpen:
-	// Hash
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-
-openAVX2ShortOpenLoop:
-	CMPQ inl, $32
-	JB   openAVX2ShortTail32
-	SUBQ $32, inl
-
-	// Load for hashing
-	polyAdd(0*8(inp))
-	polyMulAVX2
-	polyAdd(2*8(inp))
-	polyMulAVX2
-
-	// Load for decryption
-	VPXOR   (inp), AA0, AA0
-	VMOVDQU AA0, (oup)
-	LEAQ    (1*32)(inp), inp
-	LEAQ    (1*32)(oup), oup
-
-	// Shift stream left
-	VMOVDQA BB0, AA0
-	VMOVDQA CC0, BB0
-	VMOVDQA DD0, CC0
-	VMOVDQA AA1, DD0
-	VMOVDQA BB1, AA1
-	VMOVDQA CC1, BB1
-	VMOVDQA DD1, CC1
-	VMOVDQA AA2, DD1
-	VMOVDQA BB2, AA2
-	JMP     openAVX2ShortOpenLoop
-
-openAVX2ShortTail32:
-	CMPQ    inl, $16
-	VMOVDQA A0, A1
-	JB      openAVX2ShortDone
-
-	SUBQ $16, inl
-
-	// Load for hashing
-	polyAdd(0*8(inp))
-	polyMulAVX2
-
-	// Load for decryption
-	VPXOR      (inp), A0, T0
-	VMOVDQU    T0, (oup)
-	LEAQ       (1*16)(inp), inp
-	LEAQ       (1*16)(oup), oup
-	VPERM2I128 $0x11, AA0, AA0, AA0
-	VMOVDQA    A0, A1
-
-openAVX2ShortDone:
-	VZEROUPPER
-	JMP openSSETail16
-
-// ----------------------------------------------------------------------------
-// Special optimization for buffers smaller than 321 bytes
-openAVX2320:
-	// For up to 320 bytes of ciphertext and 64 bytes for the poly key, we process six blocks
-	VMOVDQA AA0, AA1; VMOVDQA BB0, BB1; VMOVDQA CC0, CC1; VPADDD ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA AA0, AA2; VMOVDQA BB0, BB2; VMOVDQA CC0, CC2; VPADDD ·avx2IncMask<>(SB), DD1, DD2
-	VMOVDQA BB0, TT1; VMOVDQA CC0, TT2; VMOVDQA DD0, TT3
-	MOVQ    $10, itr2
-
-openAVX2320InnerCipherLoop:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2
-	DECQ     itr2
-	JNE      openAVX2320InnerCipherLoop
-
-	VMOVDQA ·chacha20Constants<>(SB), TT0
-	VPADDD  TT0, AA0, AA0; VPADDD TT0, AA1, AA1; VPADDD TT0, AA2, AA2
-	VPADDD  TT1, BB0, BB0; VPADDD TT1, BB1, BB1; VPADDD TT1, BB2, BB2
-	VPADDD  TT2, CC0, CC0; VPADDD TT2, CC1, CC1; VPADDD TT2, CC2, CC2
-	VMOVDQA ·avx2IncMask<>(SB), TT0
-	VPADDD  TT3, DD0, DD0; VPADDD TT0, TT3, TT3
-	VPADDD  TT3, DD1, DD1; VPADDD TT0, TT3, TT3
-	VPADDD  TT3, DD2, DD2
-
-	// Clamp and store poly key
-	VPERM2I128 $0x02, AA0, BB0, TT0
-	VPAND      ·polyClampMask<>(SB), TT0, TT0
-	VMOVDQA    TT0, rsStoreAVX2
-
-	// Stream for up to 320 bytes
-	VPERM2I128 $0x13, AA0, BB0, AA0
-	VPERM2I128 $0x13, CC0, DD0, BB0
-	VPERM2I128 $0x02, AA1, BB1, CC0
-	VPERM2I128 $0x02, CC1, DD1, DD0
-	VPERM2I128 $0x13, AA1, BB1, AA1
-	VPERM2I128 $0x13, CC1, DD1, BB1
-	VPERM2I128 $0x02, AA2, BB2, CC1
-	VPERM2I128 $0x02, CC2, DD2, DD1
-	VPERM2I128 $0x13, AA2, BB2, AA2
-	VPERM2I128 $0x13, CC2, DD2, BB2
-	JMP        openAVX2ShortOpen
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 128 bytes of ciphertext
-openAVX2Tail128:
-	// Need to decrypt up to 128 bytes - prepare two blocks
-	VMOVDQA ·chacha20Constants<>(SB), AA1
-	VMOVDQA state1StoreAVX2, BB1
-	VMOVDQA state2StoreAVX2, CC1
-	VMOVDQA ctr3StoreAVX2, DD1
-	VPADDD  ·avx2IncMask<>(SB), DD1, DD1
-	VMOVDQA DD1, DD0
-
-	XORQ  itr2, itr2
-	MOVQ  inl, itr1
-	ANDQ  $-16, itr1
-	TESTQ itr1, itr1
-	JE    openAVX2Tail128LoopB
-
-openAVX2Tail128LoopA:
-	// Perform ChaCha rounds, while hashing the remaining input
-	polyAdd(0(inp)(itr2*1))
-	polyMulAVX2
-
-openAVX2Tail128LoopB:
-	ADDQ     $16, itr2
-	chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR $4, BB1, BB1, BB1
-	VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $12, DD1, DD1, DD1
-	chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR $12, BB1, BB1, BB1
-	VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $4, DD1, DD1, DD1
-	CMPQ     itr2, itr1
-	JB       openAVX2Tail128LoopA
-	CMPQ     itr2, $160
-	JNE      openAVX2Tail128LoopB
-
-	VPADDD     ·chacha20Constants<>(SB), AA1, AA1
-	VPADDD     state1StoreAVX2, BB1, BB1
-	VPADDD     state2StoreAVX2, CC1, CC1
-	VPADDD     DD0, DD1, DD1
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-
-openAVX2TailLoop:
-	CMPQ inl, $32
-	JB   openAVX2Tail
-	SUBQ $32, inl
-
-	// Load for decryption
-	VPXOR   (inp), AA0, AA0
-	VMOVDQU AA0, (oup)
-	LEAQ    (1*32)(inp), inp
-	LEAQ    (1*32)(oup), oup
-	VMOVDQA BB0, AA0
-	VMOVDQA CC0, BB0
-	VMOVDQA DD0, CC0
-	JMP     openAVX2TailLoop
-
-openAVX2Tail:
-	CMPQ    inl, $16
-	VMOVDQA A0, A1
-	JB      openAVX2TailDone
-	SUBQ    $16, inl
-
-	// Load for decryption
-	VPXOR      (inp), A0, T0
-	VMOVDQU    T0, (oup)
-	LEAQ       (1*16)(inp), inp
-	LEAQ       (1*16)(oup), oup
-	VPERM2I128 $0x11, AA0, AA0, AA0
-	VMOVDQA    A0, A1
-
-openAVX2TailDone:
-	VZEROUPPER
-	JMP openSSETail16
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 256 bytes of ciphertext
-openAVX2Tail256:
-	// Need to decrypt up to 256 bytes - prepare four blocks
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA DD0, TT1
-	VMOVDQA DD1, TT2
-
-	// Compute the number of iterations that will hash data
-	MOVQ    inl, tmpStoreAVX2
-	MOVQ    inl, itr1
-	SUBQ    $128, itr1
-	SHRQ    $4, itr1
-	MOVQ    $10, itr2
-	CMPQ    itr1, $10
-	CMOVQGT itr2, itr1
-	MOVQ    inp, inl
-	XORQ    itr2, itr2
-
-openAVX2Tail256LoopA:
-	polyAdd(0(inl))
-	polyMulAVX2
-	LEAQ 16(inl), inl
-
-	// Perform ChaCha rounds, while hashing the remaining input
-openAVX2Tail256LoopB:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1
-	INCQ     itr2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1
-	CMPQ     itr2, itr1
-	JB       openAVX2Tail256LoopA
-
-	CMPQ itr2, $10
-	JNE  openAVX2Tail256LoopB
-
-	MOVQ inl, itr2
-	SUBQ inp, inl
-	MOVQ inl, itr1
-	MOVQ tmpStoreAVX2, inl
-
-	// Hash the remainder of data (if any)
-openAVX2Tail256Hash:
-	ADDQ $16, itr1
-	CMPQ itr1, inl
-	JGT  openAVX2Tail256HashEnd
-	polyAdd (0(itr2))
-	polyMulAVX2
-	LEAQ 16(itr2), itr2
-	JMP  openAVX2Tail256Hash
-
-// Store 128 bytes safely, then go to store loop
-openAVX2Tail256HashEnd:
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1
-	VPADDD     TT1, DD0, DD0; VPADDD TT2, DD1, DD1
-	VPERM2I128 $0x02, AA0, BB0, AA2; VPERM2I128 $0x02, CC0, DD0, BB2; VPERM2I128 $0x13, AA0, BB0, CC2; VPERM2I128 $0x13, CC0, DD0, DD2
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-
-	VPXOR   (0*32)(inp), AA2, AA2; VPXOR (1*32)(inp), BB2, BB2; VPXOR (2*32)(inp), CC2, CC2; VPXOR (3*32)(inp), DD2, DD2
-	VMOVDQU AA2, (0*32)(oup); VMOVDQU BB2, (1*32)(oup); VMOVDQU CC2, (2*32)(oup); VMOVDQU DD2, (3*32)(oup)
-	LEAQ    (4*32)(inp), inp
-	LEAQ    (4*32)(oup), oup
-	SUBQ    $4*32, inl
-
-	JMP openAVX2TailLoop
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 384 bytes of ciphertext
-openAVX2Tail384:
-	// Need to decrypt up to 384 bytes - prepare six blocks
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1
-	VPADDD  ·avx2IncMask<>(SB), DD1, DD2
-	VMOVDQA DD0, ctr0StoreAVX2
-	VMOVDQA DD1, ctr1StoreAVX2
-	VMOVDQA DD2, ctr2StoreAVX2
-
-	// Compute the number of iterations that will hash two blocks of data
-	MOVQ    inl, tmpStoreAVX2
-	MOVQ    inl, itr1
-	SUBQ    $256, itr1
-	SHRQ    $4, itr1
-	ADDQ    $6, itr1
-	MOVQ    $10, itr2
-	CMPQ    itr1, $10
-	CMOVQGT itr2, itr1
-	MOVQ    inp, inl
-	XORQ    itr2, itr2
-
-	// Perform ChaCha rounds, while hashing the remaining input
-openAVX2Tail384LoopB:
-	polyAdd(0(inl))
-	polyMulAVX2
-	LEAQ 16(inl), inl
-
-openAVX2Tail384LoopA:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2
-	polyAdd(0(inl))
-	polyMulAVX2
-	LEAQ     16(inl), inl
-	INCQ     itr2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2
-
-	CMPQ itr2, itr1
-	JB   openAVX2Tail384LoopB
-
-	CMPQ itr2, $10
-	JNE  openAVX2Tail384LoopA
-
-	MOVQ inl, itr2
-	SUBQ inp, inl
-	MOVQ inl, itr1
-	MOVQ tmpStoreAVX2, inl
-
-openAVX2Tail384Hash:
-	ADDQ $16, itr1
-	CMPQ itr1, inl
-	JGT  openAVX2Tail384HashEnd
-	polyAdd(0(itr2))
-	polyMulAVX2
-	LEAQ 16(itr2), itr2
-	JMP  openAVX2Tail384Hash
-
-// Store 256 bytes safely, then go to store loop
-openAVX2Tail384HashEnd:
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2
-	VPADDD     ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2
-	VPERM2I128 $0x02, AA0, BB0, TT0; VPERM2I128 $0x02, CC0, DD0, TT1; VPERM2I128 $0x13, AA0, BB0, TT2; VPERM2I128 $0x13, CC0, DD0, TT3
-	VPXOR      (0*32)(inp), TT0, TT0; VPXOR (1*32)(inp), TT1, TT1; VPXOR (2*32)(inp), TT2, TT2; VPXOR (3*32)(inp), TT3, TT3
-	VMOVDQU    TT0, (0*32)(oup); VMOVDQU TT1, (1*32)(oup); VMOVDQU TT2, (2*32)(oup); VMOVDQU TT3, (3*32)(oup)
-	VPERM2I128 $0x02, AA1, BB1, TT0; VPERM2I128 $0x02, CC1, DD1, TT1; VPERM2I128 $0x13, AA1, BB1, TT2; VPERM2I128 $0x13, CC1, DD1, TT3
-	VPXOR      (4*32)(inp), TT0, TT0; VPXOR (5*32)(inp), TT1, TT1; VPXOR (6*32)(inp), TT2, TT2; VPXOR (7*32)(inp), TT3, TT3
-	VMOVDQU    TT0, (4*32)(oup); VMOVDQU TT1, (5*32)(oup); VMOVDQU TT2, (6*32)(oup); VMOVDQU TT3, (7*32)(oup)
-	VPERM2I128 $0x02, AA2, BB2, AA0; VPERM2I128 $0x02, CC2, DD2, BB0; VPERM2I128 $0x13, AA2, BB2, CC0; VPERM2I128 $0x13, CC2, DD2, DD0
-	LEAQ       (8*32)(inp), inp
-	LEAQ       (8*32)(oup), oup
-	SUBQ       $8*32, inl
-	JMP        openAVX2TailLoop
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 512 bytes of ciphertext
-openAVX2Tail512:
-	VMOVDQU ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3
-	VMOVDQA ctr3StoreAVX2, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2; VPADDD ·avx2IncMask<>(SB), DD2, DD3
-	VMOVDQA DD0, ctr0StoreAVX2; VMOVDQA DD1, ctr1StoreAVX2; VMOVDQA DD2, ctr2StoreAVX2; VMOVDQA DD3, ctr3StoreAVX2
-	XORQ    itr1, itr1
-	MOVQ    inp, itr2
-
-openAVX2Tail512LoopB:
-	polyAdd(0(itr2))
-	polyMulAVX2
-	LEAQ (2*8)(itr2), itr2
-
-openAVX2Tail512LoopA:
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyAdd(0*8(itr2))
-	polyMulAVX2
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $4, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2; VPALIGNR $12, DD3, DD3, DD3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyAdd(2*8(itr2))
-	polyMulAVX2
-	LEAQ     (4*8)(itr2), itr2
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $12, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2; VPALIGNR $4, DD3, DD3, DD3
-	INCQ     itr1
-	CMPQ     itr1, $4
-	JLT      openAVX2Tail512LoopB
-
-	CMPQ itr1, $10
-	JNE  openAVX2Tail512LoopA
-
-	MOVQ inl, itr1
-	SUBQ $384, itr1
-	ANDQ $-16, itr1
-
-openAVX2Tail512HashLoop:
-	TESTQ itr1, itr1
-	JE    openAVX2Tail512HashEnd
-	polyAdd(0(itr2))
-	polyMulAVX2
-	LEAQ  16(itr2), itr2
-	SUBQ  $16, itr1
-	JMP   openAVX2Tail512HashLoop
-
-openAVX2Tail512HashEnd:
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2; VPADDD ·chacha20Constants<>(SB), AA3, AA3
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2; VPADDD state1StoreAVX2, BB3, BB3
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2; VPADDD state2StoreAVX2, CC3, CC3
-	VPADDD     ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2; VPADDD ctr3StoreAVX2, DD3, DD3
-	VMOVDQA    CC3, tmpStoreAVX2
-	VPERM2I128 $0x02, AA0, BB0, CC3; VPERM2I128 $0x13, AA0, BB0, BB0; VPERM2I128 $0x02, CC0, DD0, AA0; VPERM2I128 $0x13, CC0, DD0, CC0
-	VPXOR      (0*32)(inp), CC3, CC3; VPXOR (1*32)(inp), AA0, AA0; VPXOR (2*32)(inp), BB0, BB0; VPXOR (3*32)(inp), CC0, CC0
-	VMOVDQU    CC3, (0*32)(oup); VMOVDQU AA0, (1*32)(oup); VMOVDQU BB0, (2*32)(oup); VMOVDQU CC0, (3*32)(oup)
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-	VPXOR      (4*32)(inp), AA0, AA0; VPXOR (5*32)(inp), BB0, BB0; VPXOR (6*32)(inp), CC0, CC0; VPXOR (7*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (4*32)(oup); VMOVDQU BB0, (5*32)(oup); VMOVDQU CC0, (6*32)(oup); VMOVDQU DD0, (7*32)(oup)
-	VPERM2I128 $0x02, AA2, BB2, AA0; VPERM2I128 $0x02, CC2, DD2, BB0; VPERM2I128 $0x13, AA2, BB2, CC0; VPERM2I128 $0x13, CC2, DD2, DD0
-	VPXOR      (8*32)(inp), AA0, AA0; VPXOR (9*32)(inp), BB0, BB0; VPXOR (10*32)(inp), CC0, CC0; VPXOR (11*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (8*32)(oup); VMOVDQU BB0, (9*32)(oup); VMOVDQU CC0, (10*32)(oup); VMOVDQU DD0, (11*32)(oup)
-	VPERM2I128 $0x02, AA3, BB3, AA0; VPERM2I128 $0x02, tmpStoreAVX2, DD3, BB0; VPERM2I128 $0x13, AA3, BB3, CC0; VPERM2I128 $0x13, tmpStoreAVX2, DD3, DD0
-
-	LEAQ (12*32)(inp), inp
-	LEAQ (12*32)(oup), oup
-	SUBQ $12*32, inl
-
-	JMP openAVX2TailLoop
-
-// ----------------------------------------------------------------------------
-// ----------------------------------------------------------------------------
-// func chacha20Poly1305Seal(dst, key, src, ad []byte)
-TEXT ·chacha20Poly1305Seal(SB), 0, $288-96
-	// For aligned stack access
-	MOVQ SP, BP
-	ADDQ $32, BP
-	ANDQ $-32, BP
-	MOVQ dst+0(FP), oup
-	MOVQ key+24(FP), keyp
-	MOVQ src+48(FP), inp
-	MOVQ src_len+56(FP), inl
-	MOVQ ad+72(FP), adp
-
-	CMPB ·useAVX2(SB), $1
-	JE   chacha20Poly1305Seal_AVX2
-
-	// Special optimization, for very short buffers
-	CMPQ inl, $128
-	JBE  sealSSE128 // About 15% faster
-
-	// In the seal case - prepare the poly key + 3 blocks of stream in the first iteration
-	MOVOU ·chacha20Constants<>(SB), A0
-	MOVOU (1*16)(keyp), B0
-	MOVOU (2*16)(keyp), C0
-	MOVOU (3*16)(keyp), D0
-
-	// Store state on stack for future use
-	MOVO B0, state1Store
-	MOVO C0, state2Store
-
-	// Load state, increment counter blocks
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO A2, A3; MOVO B2, B3; MOVO C2, C3; MOVO D2, D3; PADDL ·sseIncMask<>(SB), D3
-
-	// Store counters
-	MOVO D0, ctr0Store; MOVO D1, ctr1Store; MOVO D2, ctr2Store; MOVO D3, ctr3Store
-	MOVQ $10, itr2
-
-sealSSEIntroLoop:
-	MOVO         C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO         tmpStore, C3
-	MOVO         C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO         tmpStore, C1
-	shiftB0Left; shiftB1Left; shiftB2Left; shiftB3Left
-	shiftC0Left; shiftC1Left; shiftC2Left; shiftC3Left
-	shiftD0Left; shiftD1Left; shiftD2Left; shiftD3Left
-
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	shiftB0Right; shiftB1Right; shiftB2Right; shiftB3Right
-	shiftC0Right; shiftC1Right; shiftC2Right; shiftC3Right
-	shiftD0Right; shiftD1Right; shiftD2Right; shiftD3Right
-	DECQ          itr2
-	JNE           sealSSEIntroLoop
-
-	// Add in the state
-	PADDD ·chacha20Constants<>(SB), A0; PADDD ·chacha20Constants<>(SB), A1; PADDD ·chacha20Constants<>(SB), A2; PADDD ·chacha20Constants<>(SB), A3
-	PADDD state1Store, B0; PADDD state1Store, B1; PADDD state1Store, B2; PADDD state1Store, B3
-	PADDD state2Store, C1; PADDD state2Store, C2; PADDD state2Store, C3
-	PADDD ctr1Store, D1; PADDD ctr2Store, D2; PADDD ctr3Store, D3
-
-	// Clamp and store the key
-	PAND ·polyClampMask<>(SB), A0
-	MOVO A0, rStore
-	MOVO B0, sStore
-
-	// Hash AAD
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-
-	MOVOU (0*16)(inp), A0; MOVOU (1*16)(inp), B0; MOVOU (2*16)(inp), C0; MOVOU (3*16)(inp), D0
-	PXOR  A0, A1; PXOR B0, B1; PXOR C0, C1; PXOR D0, D1
-	MOVOU A1, (0*16)(oup); MOVOU B1, (1*16)(oup); MOVOU C1, (2*16)(oup); MOVOU D1, (3*16)(oup)
-	MOVOU (4*16)(inp), A0; MOVOU (5*16)(inp), B0; MOVOU (6*16)(inp), C0; MOVOU (7*16)(inp), D0
-	PXOR  A0, A2; PXOR B0, B2; PXOR C0, C2; PXOR D0, D2
-	MOVOU A2, (4*16)(oup); MOVOU B2, (5*16)(oup); MOVOU C2, (6*16)(oup); MOVOU D2, (7*16)(oup)
-
-	MOVQ $128, itr1
-	SUBQ $128, inl
-	LEAQ 128(inp), inp
-
-	MOVO A3, A1; MOVO B3, B1; MOVO C3, C1; MOVO D3, D1
-
-	CMPQ inl, $64
-	JBE  sealSSE128SealHash
-
-	MOVOU (0*16)(inp), A0; MOVOU (1*16)(inp), B0; MOVOU (2*16)(inp), C0; MOVOU (3*16)(inp), D0
-	PXOR  A0, A3; PXOR B0, B3; PXOR C0, C3; PXOR D0, D3
-	MOVOU A3, (8*16)(oup); MOVOU B3, (9*16)(oup); MOVOU C3, (10*16)(oup); MOVOU D3, (11*16)(oup)
-
-	ADDQ $64, itr1
-	SUBQ $64, inl
-	LEAQ 64(inp), inp
-
-	MOVQ $2, itr1
-	MOVQ $8, itr2
-
-	CMPQ inl, $64
-	JBE  sealSSETail64
-	CMPQ inl, $128
-	JBE  sealSSETail128
-	CMPQ inl, $192
-	JBE  sealSSETail192
-
-sealSSEMainLoop:
-	// Load state, increment counter blocks
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO A2, A3; MOVO B2, B3; MOVO C2, C3; MOVO D2, D3; PADDL ·sseIncMask<>(SB), D3
-
-	// Store counters
-	MOVO D0, ctr0Store; MOVO D1, ctr1Store; MOVO D2, ctr2Store; MOVO D3, ctr3Store
-
-sealSSEInnerLoop:
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	polyAdd(0(oup))
-	shiftB0Left;  shiftB1Left; shiftB2Left; shiftB3Left
-	shiftC0Left;  shiftC1Left; shiftC2Left; shiftC3Left
-	shiftD0Left;  shiftD1Left; shiftD2Left; shiftD3Left
-	polyMulStage1
-	polyMulStage2
-	LEAQ          (2*8)(oup), oup
-	MOVO          C3, tmpStore
-	chachaQR(A0, B0, C0, D0, C3); chachaQR(A1, B1, C1, D1, C3); chachaQR(A2, B2, C2, D2, C3)
-	MOVO          tmpStore, C3
-	MOVO          C1, tmpStore
-	polyMulStage3
-	chachaQR(A3, B3, C3, D3, C1)
-	MOVO          tmpStore, C1
-	polyMulReduceStage
-	shiftB0Right; shiftB1Right; shiftB2Right; shiftB3Right
-	shiftC0Right; shiftC1Right; shiftC2Right; shiftC3Right
-	shiftD0Right; shiftD1Right; shiftD2Right; shiftD3Right
-	DECQ          itr2
-	JGE           sealSSEInnerLoop
-	polyAdd(0(oup))
-	polyMul
-	LEAQ          (2*8)(oup), oup
-	DECQ          itr1
-	JG            sealSSEInnerLoop
-
-	// Add in the state
-	PADDD ·chacha20Constants<>(SB), A0; PADDD ·chacha20Constants<>(SB), A1; PADDD ·chacha20Constants<>(SB), A2; PADDD ·chacha20Constants<>(SB), A3
-	PADDD state1Store, B0; PADDD state1Store, B1; PADDD state1Store, B2; PADDD state1Store, B3
-	PADDD state2Store, C0; PADDD state2Store, C1; PADDD state2Store, C2; PADDD state2Store, C3
-	PADDD ctr0Store, D0; PADDD ctr1Store, D1; PADDD ctr2Store, D2; PADDD ctr3Store, D3
-	MOVO  D3, tmpStore
-
-	// Load - xor - store
-	MOVOU (0*16)(inp), D3; PXOR D3, A0
-	MOVOU (1*16)(inp), D3; PXOR D3, B0
-	MOVOU (2*16)(inp), D3; PXOR D3, C0
-	MOVOU (3*16)(inp), D3; PXOR D3, D0
-	MOVOU A0, (0*16)(oup)
-	MOVOU B0, (1*16)(oup)
-	MOVOU C0, (2*16)(oup)
-	MOVOU D0, (3*16)(oup)
-	MOVO  tmpStore, D3
-
-	MOVOU (4*16)(inp), A0; MOVOU (5*16)(inp), B0; MOVOU (6*16)(inp), C0; MOVOU (7*16)(inp), D0
-	PXOR  A0, A1; PXOR B0, B1; PXOR C0, C1; PXOR D0, D1
-	MOVOU A1, (4*16)(oup); MOVOU B1, (5*16)(oup); MOVOU C1, (6*16)(oup); MOVOU D1, (7*16)(oup)
-	MOVOU (8*16)(inp), A0; MOVOU (9*16)(inp), B0; MOVOU (10*16)(inp), C0; MOVOU (11*16)(inp), D0
-	PXOR  A0, A2; PXOR B0, B2; PXOR C0, C2; PXOR D0, D2
-	MOVOU A2, (8*16)(oup); MOVOU B2, (9*16)(oup); MOVOU C2, (10*16)(oup); MOVOU D2, (11*16)(oup)
-	ADDQ  $192, inp
-	MOVQ  $192, itr1
-	SUBQ  $192, inl
-	MOVO  A3, A1
-	MOVO  B3, B1
-	MOVO  C3, C1
-	MOVO  D3, D1
-	CMPQ  inl, $64
-	JBE   sealSSE128SealHash
-	MOVOU (0*16)(inp), A0; MOVOU (1*16)(inp), B0; MOVOU (2*16)(inp), C0; MOVOU (3*16)(inp), D0
-	PXOR  A0, A3; PXOR B0, B3; PXOR C0, C3; PXOR D0, D3
-	MOVOU A3, (12*16)(oup); MOVOU B3, (13*16)(oup); MOVOU C3, (14*16)(oup); MOVOU D3, (15*16)(oup)
-	LEAQ  64(inp), inp
-	SUBQ  $64, inl
-	MOVQ  $6, itr1
-	MOVQ  $4, itr2
-	CMPQ  inl, $192
-	JG    sealSSEMainLoop
-
-	MOVQ  inl, itr1
-	TESTQ inl, inl
-	JE    sealSSE128SealHash
-	MOVQ  $6, itr1
-	CMPQ  inl, $64
-	JBE   sealSSETail64
-	CMPQ  inl, $128
-	JBE   sealSSETail128
-	JMP   sealSSETail192
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 64 bytes of plaintext
-sealSSETail64:
-	// Need to encrypt up to 64 bytes - prepare single block, hash 192 or 256 bytes
-	MOVO  ·chacha20Constants<>(SB), A1
-	MOVO  state1Store, B1
-	MOVO  state2Store, C1
-	MOVO  ctr3Store, D1
-	PADDL ·sseIncMask<>(SB), D1
-	MOVO  D1, ctr0Store
-
-sealSSETail64LoopA:
-	// Perform ChaCha rounds, while hashing the previously encrypted ciphertext
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealSSETail64LoopB:
-	chachaQR(A1, B1, C1, D1, T1)
-	shiftB1Left;  shiftC1Left; shiftD1Left
-	chachaQR(A1, B1, C1, D1, T1)
-	shiftB1Right; shiftC1Right; shiftD1Right
-	polyAdd(0(oup))
-	polyMul
-	LEAQ          16(oup), oup
-
-	DECQ itr1
-	JG   sealSSETail64LoopA
-
-	DECQ  itr2
-	JGE   sealSSETail64LoopB
-	PADDL ·chacha20Constants<>(SB), A1
-	PADDL state1Store, B1
-	PADDL state2Store, C1
-	PADDL ctr0Store, D1
-
-	JMP sealSSE128Seal
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 128 bytes of plaintext
-sealSSETail128:
-	// Need to encrypt up to 128 bytes - prepare two blocks, hash 192 or 256 bytes
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0; MOVO D0, ctr0Store
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1; MOVO D1, ctr1Store
-
-sealSSETail128LoopA:
-	// Perform ChaCha rounds, while hashing the previously encrypted ciphertext
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealSSETail128LoopB:
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0)
-	shiftB0Left;  shiftC0Left; shiftD0Left
-	shiftB1Left;  shiftC1Left; shiftD1Left
-	polyAdd(0(oup))
-	polyMul
-	LEAQ          16(oup), oup
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-	shiftB1Right; shiftC1Right; shiftD1Right
-
-	DECQ itr1
-	JG   sealSSETail128LoopA
-
-	DECQ itr2
-	JGE  sealSSETail128LoopB
-
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1
-	PADDL state1Store, B0; PADDL state1Store, B1
-	PADDL state2Store, C0; PADDL state2Store, C1
-	PADDL ctr0Store, D0; PADDL ctr1Store, D1
-
-	MOVOU (0*16)(inp), T0; MOVOU (1*16)(inp), T1; MOVOU (2*16)(inp), T2; MOVOU (3*16)(inp), T3
-	PXOR  T0, A0; PXOR T1, B0; PXOR T2, C0; PXOR T3, D0
-	MOVOU A0, (0*16)(oup); MOVOU B0, (1*16)(oup); MOVOU C0, (2*16)(oup); MOVOU D0, (3*16)(oup)
-
-	MOVQ $64, itr1
-	LEAQ 64(inp), inp
-	SUBQ $64, inl
-
-	JMP sealSSE128SealHash
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 192 bytes of plaintext
-sealSSETail192:
-	// Need to encrypt up to 192 bytes - prepare three blocks, hash 192 or 256 bytes
-	MOVO ·chacha20Constants<>(SB), A0; MOVO state1Store, B0; MOVO state2Store, C0; MOVO ctr3Store, D0; PADDL ·sseIncMask<>(SB), D0; MOVO D0, ctr0Store
-	MOVO A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1; MOVO D1, ctr1Store
-	MOVO A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2; MOVO D2, ctr2Store
-
-sealSSETail192LoopA:
-	// Perform ChaCha rounds, while hashing the previously encrypted ciphertext
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealSSETail192LoopB:
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Left; shiftC0Left; shiftD0Left
-	shiftB1Left; shiftC1Left; shiftD1Left
-	shiftB2Left; shiftC2Left; shiftD2Left
-
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Right; shiftC0Right; shiftD0Right
-	shiftB1Right; shiftC1Right; shiftD1Right
-	shiftB2Right; shiftC2Right; shiftD2Right
-
-	DECQ itr1
-	JG   sealSSETail192LoopA
-
-	DECQ itr2
-	JGE  sealSSETail192LoopB
-
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1; PADDL ·chacha20Constants<>(SB), A2
-	PADDL state1Store, B0; PADDL state1Store, B1; PADDL state1Store, B2
-	PADDL state2Store, C0; PADDL state2Store, C1; PADDL state2Store, C2
-	PADDL ctr0Store, D0; PADDL ctr1Store, D1; PADDL ctr2Store, D2
-
-	MOVOU (0*16)(inp), T0; MOVOU (1*16)(inp), T1; MOVOU (2*16)(inp), T2; MOVOU (3*16)(inp), T3
-	PXOR  T0, A0; PXOR T1, B0; PXOR T2, C0; PXOR T3, D0
-	MOVOU A0, (0*16)(oup); MOVOU B0, (1*16)(oup); MOVOU C0, (2*16)(oup); MOVOU D0, (3*16)(oup)
-	MOVOU (4*16)(inp), T0; MOVOU (5*16)(inp), T1; MOVOU (6*16)(inp), T2; MOVOU (7*16)(inp), T3
-	PXOR  T0, A1; PXOR T1, B1; PXOR T2, C1; PXOR T3, D1
-	MOVOU A1, (4*16)(oup); MOVOU B1, (5*16)(oup); MOVOU C1, (6*16)(oup); MOVOU D1, (7*16)(oup)
-
-	MOVO A2, A1
-	MOVO B2, B1
-	MOVO C2, C1
-	MOVO D2, D1
-	MOVQ $128, itr1
-	LEAQ 128(inp), inp
-	SUBQ $128, inl
-
-	JMP sealSSE128SealHash
-
-// ----------------------------------------------------------------------------
-// Special seal optimization for buffers smaller than 129 bytes
-sealSSE128:
-	// For up to 128 bytes of ciphertext and 64 bytes for the poly key, we require to process three blocks
-	MOVOU ·chacha20Constants<>(SB), A0; MOVOU (1*16)(keyp), B0; MOVOU (2*16)(keyp), C0; MOVOU (3*16)(keyp), D0
-	MOVO  A0, A1; MOVO B0, B1; MOVO C0, C1; MOVO D0, D1; PADDL ·sseIncMask<>(SB), D1
-	MOVO  A1, A2; MOVO B1, B2; MOVO C1, C2; MOVO D1, D2; PADDL ·sseIncMask<>(SB), D2
-	MOVO  B0, T1; MOVO C0, T2; MOVO D1, T3
-	MOVQ  $10, itr2
-
-sealSSE128InnerCipherLoop:
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Left;  shiftB1Left; shiftB2Left
-	shiftC0Left;  shiftC1Left; shiftC2Left
-	shiftD0Left;  shiftD1Left; shiftD2Left
-	chachaQR(A0, B0, C0, D0, T0); chachaQR(A1, B1, C1, D1, T0); chachaQR(A2, B2, C2, D2, T0)
-	shiftB0Right; shiftB1Right; shiftB2Right
-	shiftC0Right; shiftC1Right; shiftC2Right
-	shiftD0Right; shiftD1Right; shiftD2Right
-	DECQ          itr2
-	JNE           sealSSE128InnerCipherLoop
-
-	// A0|B0 hold the Poly1305 32-byte key, C0,D0 can be discarded
-	PADDL ·chacha20Constants<>(SB), A0; PADDL ·chacha20Constants<>(SB), A1; PADDL ·chacha20Constants<>(SB), A2
-	PADDL T1, B0; PADDL T1, B1; PADDL T1, B2
-	PADDL T2, C1; PADDL T2, C2
-	PADDL T3, D1; PADDL ·sseIncMask<>(SB), T3; PADDL T3, D2
-	PAND  ·polyClampMask<>(SB), A0
-	MOVOU A0, rStore
-	MOVOU B0, sStore
-
-	// Hash
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-	XORQ itr1, itr1
-
-sealSSE128SealHash:
-	// itr1 holds the number of bytes encrypted but not yet hashed
-	CMPQ itr1, $16
-	JB   sealSSE128Seal
-	polyAdd(0(oup))
-	polyMul
-
-	SUBQ $16, itr1
-	ADDQ $16, oup
-
-	JMP sealSSE128SealHash
-
-sealSSE128Seal:
-	CMPQ inl, $16
-	JB   sealSSETail
-	SUBQ $16, inl
-
-	// Load for decryption
-	MOVOU (inp), T0
-	PXOR  T0, A1
-	MOVOU A1, (oup)
-	LEAQ  (1*16)(inp), inp
-	LEAQ  (1*16)(oup), oup
-
-	// Extract for hashing
-	MOVQ   A1, t0
-	PSRLDQ $8, A1
-	MOVQ A1, t1
-	ADDQ   t0, acc0; ADCQ t1, acc1; ADCQ $1, acc2
-	polyMul
-
-	// Shift the stream "left"
-	MOVO B1, A1
-	MOVO C1, B1
-	MOVO D1, C1
-	MOVO A2, D1
-	MOVO B2, A2
-	MOVO C2, B2
-	MOVO D2, C2
-	JMP  sealSSE128Seal
-
-sealSSETail:
-	TESTQ inl, inl
-	JE    sealSSEFinalize
-
-	// We can only load the PT one byte at a time to avoid read after end of buffer
-	MOVQ inl, itr2
-	SHLQ $4, itr2
-	LEAQ ·andMask<>(SB), t0
-	MOVQ inl, itr1
-	LEAQ -1(inp)(inl*1), inp
-	XORQ t2, t2
-	XORQ t3, t3
-	XORQ AX, AX
-
-sealSSETailLoadLoop:
-	SHLQ $8, t2, t3
-	SHLQ $8, t2
-	MOVB (inp), AX
-	XORQ AX, t2
-	LEAQ   -1(inp), inp
-	DECQ   itr1
-	JNE    sealSSETailLoadLoop
-	MOVQ t2, 0+tmpStore
-	MOVQ t3, 8+tmpStore
-	PXOR 0+tmpStore, A1
-	MOVOU  A1, (oup)
-	MOVOU  -16(t0)(itr2*1), T0
-	PAND   T0, A1
-	MOVQ   A1, t0
-	PSRLDQ $8, A1
-	MOVQ   A1, t1
-	ADDQ   t0, acc0; ADCQ t1, acc1; ADCQ $1, acc2
-	polyMul
-
-	ADDQ inl, oup
-
-sealSSEFinalize:
-	// Hash in the buffer lengths
-	ADDQ ad_len+80(FP), acc0
-	ADCQ src_len+56(FP), acc1
-	ADCQ $1, acc2
-	polyMul
-
-	// Final reduce
-	MOVQ    acc0, t0
-	MOVQ    acc1, t1
-	MOVQ    acc2, t2
-	SUBQ    $-5, acc0
-	SBBQ    $-1, acc1
-	SBBQ    $3, acc2
-	CMOVQCS t0, acc0
-	CMOVQCS t1, acc1
-	CMOVQCS t2, acc2
-
-	// Add in the "s" part of the key
-	ADDQ 0+sStore, acc0
-	ADCQ 8+sStore, acc1
-
-	// Finally store the tag at the end of the message
-	MOVQ acc0, (0*8)(oup)
-	MOVQ acc1, (1*8)(oup)
-	RET
-
-// ----------------------------------------------------------------------------
-// ------------------------- AVX2 Code ----------------------------------------
-chacha20Poly1305Seal_AVX2:
-	VZEROUPPER
-	VMOVDQU ·chacha20Constants<>(SB), AA0
-	BYTE    $0xc4; BYTE $0x42; BYTE $0x7d; BYTE $0x5a; BYTE $0x70; BYTE $0x10 // broadcasti128 16(r8), ymm14
-	BYTE    $0xc4; BYTE $0x42; BYTE $0x7d; BYTE $0x5a; BYTE $0x60; BYTE $0x20 // broadcasti128 32(r8), ymm12
-	BYTE    $0xc4; BYTE $0xc2; BYTE $0x7d; BYTE $0x5a; BYTE $0x60; BYTE $0x30 // broadcasti128 48(r8), ymm4
-	VPADDD  ·avx2InitMask<>(SB), DD0, DD0
-
-	// Special optimizations, for very short buffers
-	CMPQ inl, $192
-	JBE  seal192AVX2 // 33% faster
-	CMPQ inl, $320
-	JBE  seal320AVX2 // 17% faster
-
-	// For the general key prepare the key first - as a byproduct we have 64 bytes of cipher stream
-	VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3; VMOVDQA BB0, state1StoreAVX2
-	VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3; VMOVDQA CC0, state2StoreAVX2
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1; VMOVDQA DD0, ctr0StoreAVX2
-	VPADDD  ·avx2IncMask<>(SB), DD1, DD2; VMOVDQA DD1, ctr1StoreAVX2
-	VPADDD  ·avx2IncMask<>(SB), DD2, DD3; VMOVDQA DD2, ctr2StoreAVX2
-	VMOVDQA DD3, ctr3StoreAVX2
-	MOVQ    $10, itr2
-
-sealAVX2IntroLoop:
-	VMOVDQA CC3, tmpStoreAVX2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, CC3); chachaQR_AVX2(AA1, BB1, CC1, DD1, CC3); chachaQR_AVX2(AA2, BB2, CC2, DD2, CC3)
-	VMOVDQA tmpStoreAVX2, CC3
-	VMOVDQA CC1, tmpStoreAVX2
-	chachaQR_AVX2(AA3, BB3, CC3, DD3, CC1)
-	VMOVDQA tmpStoreAVX2, CC1
-
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $12, DD0, DD0, DD0
-	VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $12, DD1, DD1, DD1
-	VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $12, DD2, DD2, DD2
-	VPALIGNR $4, BB3, BB3, BB3; VPALIGNR $8, CC3, CC3, CC3; VPALIGNR $12, DD3, DD3, DD3
-
-	VMOVDQA CC3, tmpStoreAVX2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, CC3); chachaQR_AVX2(AA1, BB1, CC1, DD1, CC3); chachaQR_AVX2(AA2, BB2, CC2, DD2, CC3)
-	VMOVDQA tmpStoreAVX2, CC3
-	VMOVDQA CC1, tmpStoreAVX2
-	chachaQR_AVX2(AA3, BB3, CC3, DD3, CC1)
-	VMOVDQA tmpStoreAVX2, CC1
-
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $4, DD0, DD0, DD0
-	VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $4, DD1, DD1, DD1
-	VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $4, DD2, DD2, DD2
-	VPALIGNR $12, BB3, BB3, BB3; VPALIGNR $8, CC3, CC3, CC3; VPALIGNR $4, DD3, DD3, DD3
-	DECQ     itr2
-	JNE      sealAVX2IntroLoop
-
-	VPADDD ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2; VPADDD ·chacha20Constants<>(SB), AA3, AA3
-	VPADDD state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2; VPADDD state1StoreAVX2, BB3, BB3
-	VPADDD state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2; VPADDD state2StoreAVX2, CC3, CC3
-	VPADDD ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2; VPADDD ctr3StoreAVX2, DD3, DD3
-
-	VPERM2I128 $0x13, CC0, DD0, CC0 // Stream bytes 96 - 127
-	VPERM2I128 $0x02, AA0, BB0, DD0 // The Poly1305 key
-	VPERM2I128 $0x13, AA0, BB0, AA0 // Stream bytes 64 - 95
-
-	// Clamp and store poly key
-	VPAND   ·polyClampMask<>(SB), DD0, DD0
-	VMOVDQA DD0, rsStoreAVX2
-
-	// Hash AD
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-
-	// Can store at least 320 bytes
-	VPXOR   (0*32)(inp), AA0, AA0
-	VPXOR   (1*32)(inp), CC0, CC0
-	VMOVDQU AA0, (0*32)(oup)
-	VMOVDQU CC0, (1*32)(oup)
-
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-	VPXOR      (2*32)(inp), AA0, AA0; VPXOR (3*32)(inp), BB0, BB0; VPXOR (4*32)(inp), CC0, CC0; VPXOR (5*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (2*32)(oup); VMOVDQU BB0, (3*32)(oup); VMOVDQU CC0, (4*32)(oup); VMOVDQU DD0, (5*32)(oup)
-	VPERM2I128 $0x02, AA2, BB2, AA0; VPERM2I128 $0x02, CC2, DD2, BB0; VPERM2I128 $0x13, AA2, BB2, CC0; VPERM2I128 $0x13, CC2, DD2, DD0
-	VPXOR      (6*32)(inp), AA0, AA0; VPXOR (7*32)(inp), BB0, BB0; VPXOR (8*32)(inp), CC0, CC0; VPXOR (9*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (6*32)(oup); VMOVDQU BB0, (7*32)(oup); VMOVDQU CC0, (8*32)(oup); VMOVDQU DD0, (9*32)(oup)
-
-	MOVQ $320, itr1
-	SUBQ $320, inl
-	LEAQ 320(inp), inp
-
-	VPERM2I128 $0x02, AA3, BB3, AA0; VPERM2I128 $0x02, CC3, DD3, BB0; VPERM2I128 $0x13, AA3, BB3, CC0; VPERM2I128 $0x13, CC3, DD3, DD0
-	CMPQ       inl, $128
-	JBE        sealAVX2SealHash
-
-	VPXOR   (0*32)(inp), AA0, AA0; VPXOR (1*32)(inp), BB0, BB0; VPXOR (2*32)(inp), CC0, CC0; VPXOR (3*32)(inp), DD0, DD0
-	VMOVDQU AA0, (10*32)(oup); VMOVDQU BB0, (11*32)(oup); VMOVDQU CC0, (12*32)(oup); VMOVDQU DD0, (13*32)(oup)
-	SUBQ    $128, inl
-	LEAQ    128(inp), inp
-
-	MOVQ $8, itr1
-	MOVQ $2, itr2
-
-	CMPQ inl, $128
-	JBE  sealAVX2Tail128
-	CMPQ inl, $256
-	JBE  sealAVX2Tail256
-	CMPQ inl, $384
-	JBE  sealAVX2Tail384
-	CMPQ inl, $512
-	JBE  sealAVX2Tail512
-
-	// We have 448 bytes to hash, but main loop hashes 512 bytes at a time - perform some rounds, before the main loop
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2; VPADDD ·avx2IncMask<>(SB), DD2, DD3
-	VMOVDQA DD0, ctr0StoreAVX2; VMOVDQA DD1, ctr1StoreAVX2; VMOVDQA DD2, ctr2StoreAVX2; VMOVDQA DD3, ctr3StoreAVX2
-
-	VMOVDQA CC3, tmpStoreAVX2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, CC3); chachaQR_AVX2(AA1, BB1, CC1, DD1, CC3); chachaQR_AVX2(AA2, BB2, CC2, DD2, CC3)
-	VMOVDQA tmpStoreAVX2, CC3
-	VMOVDQA CC1, tmpStoreAVX2
-	chachaQR_AVX2(AA3, BB3, CC3, DD3, CC1)
-	VMOVDQA tmpStoreAVX2, CC1
-
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $12, DD0, DD0, DD0
-	VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $12, DD1, DD1, DD1
-	VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $12, DD2, DD2, DD2
-	VPALIGNR $4, BB3, BB3, BB3; VPALIGNR $8, CC3, CC3, CC3; VPALIGNR $12, DD3, DD3, DD3
-
-	VMOVDQA CC3, tmpStoreAVX2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, CC3); chachaQR_AVX2(AA1, BB1, CC1, DD1, CC3); chachaQR_AVX2(AA2, BB2, CC2, DD2, CC3)
-	VMOVDQA tmpStoreAVX2, CC3
-	VMOVDQA CC1, tmpStoreAVX2
-	chachaQR_AVX2(AA3, BB3, CC3, DD3, CC1)
-	VMOVDQA tmpStoreAVX2, CC1
-
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $4, DD0, DD0, DD0
-	VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $4, DD1, DD1, DD1
-	VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $4, DD2, DD2, DD2
-	VPALIGNR $12, BB3, BB3, BB3; VPALIGNR $8, CC3, CC3, CC3; VPALIGNR $4, DD3, DD3, DD3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-
-	SUBQ $16, oup                  // Adjust the pointer
-	MOVQ $9, itr1
-	JMP  sealAVX2InternalLoopStart
-
-sealAVX2MainLoop:
-	// Load state, increment counter blocks, store the incremented counters
-	VMOVDQU ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3
-	VMOVDQA ctr3StoreAVX2, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2; VPADDD ·avx2IncMask<>(SB), DD2, DD3
-	VMOVDQA DD0, ctr0StoreAVX2; VMOVDQA DD1, ctr1StoreAVX2; VMOVDQA DD2, ctr2StoreAVX2; VMOVDQA DD3, ctr3StoreAVX2
-	MOVQ    $10, itr1
-
-sealAVX2InternalLoop:
-	polyAdd(0*8(oup))
-	VPADDD  BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	polyMulStage1_AVX2
-	VPXOR   AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	polyMulStage2_AVX2
-	VPADDD  DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR   CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyMulStage3_AVX2
-	VMOVDQA CC3, tmpStoreAVX2
-	VPSLLD  $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD  $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD  $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD  $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA tmpStoreAVX2, CC3
-	polyMulReduceStage
-
-sealAVX2InternalLoopStart:
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	polyAdd(2*8(oup))
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	polyMulStage1_AVX2
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulStage2_AVX2
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $4, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2; VPALIGNR $12, DD3, DD3, DD3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	polyMulStage3_AVX2
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	polyMulReduceStage
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyAdd(4*8(oup))
-	LEAQ     (6*8)(oup), oup
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulStage1_AVX2
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	polyMulStage2_AVX2
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	polyMulStage3_AVX2
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyMulReduceStage
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $12, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2; VPALIGNR $4, DD3, DD3, DD3
-	DECQ     itr1
-	JNE      sealAVX2InternalLoop
-
-	VPADDD  ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2; VPADDD ·chacha20Constants<>(SB), AA3, AA3
-	VPADDD  state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2; VPADDD state1StoreAVX2, BB3, BB3
-	VPADDD  state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2; VPADDD state2StoreAVX2, CC3, CC3
-	VPADDD  ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2; VPADDD ctr3StoreAVX2, DD3, DD3
-	VMOVDQA CC3, tmpStoreAVX2
-
-	// We only hashed 480 of the 512 bytes available - hash the remaining 32 here
-	polyAdd(0*8(oup))
-	polyMulAVX2
-	LEAQ       (4*8)(oup), oup
-	VPERM2I128 $0x02, AA0, BB0, CC3; VPERM2I128 $0x13, AA0, BB0, BB0; VPERM2I128 $0x02, CC0, DD0, AA0; VPERM2I128 $0x13, CC0, DD0, CC0
-	VPXOR      (0*32)(inp), CC3, CC3; VPXOR (1*32)(inp), AA0, AA0; VPXOR (2*32)(inp), BB0, BB0; VPXOR (3*32)(inp), CC0, CC0
-	VMOVDQU    CC3, (0*32)(oup); VMOVDQU AA0, (1*32)(oup); VMOVDQU BB0, (2*32)(oup); VMOVDQU CC0, (3*32)(oup)
-	VPERM2I128 $0x02, AA1, BB1, AA0; VPERM2I128 $0x02, CC1, DD1, BB0; VPERM2I128 $0x13, AA1, BB1, CC0; VPERM2I128 $0x13, CC1, DD1, DD0
-	VPXOR      (4*32)(inp), AA0, AA0; VPXOR (5*32)(inp), BB0, BB0; VPXOR (6*32)(inp), CC0, CC0; VPXOR (7*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (4*32)(oup); VMOVDQU BB0, (5*32)(oup); VMOVDQU CC0, (6*32)(oup); VMOVDQU DD0, (7*32)(oup)
-
-	// and here
-	polyAdd(-2*8(oup))
-	polyMulAVX2
-	VPERM2I128 $0x02, AA2, BB2, AA0; VPERM2I128 $0x02, CC2, DD2, BB0; VPERM2I128 $0x13, AA2, BB2, CC0; VPERM2I128 $0x13, CC2, DD2, DD0
-	VPXOR      (8*32)(inp), AA0, AA0; VPXOR (9*32)(inp), BB0, BB0; VPXOR (10*32)(inp), CC0, CC0; VPXOR (11*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (8*32)(oup); VMOVDQU BB0, (9*32)(oup); VMOVDQU CC0, (10*32)(oup); VMOVDQU DD0, (11*32)(oup)
-	VPERM2I128 $0x02, AA3, BB3, AA0; VPERM2I128 $0x02, tmpStoreAVX2, DD3, BB0; VPERM2I128 $0x13, AA3, BB3, CC0; VPERM2I128 $0x13, tmpStoreAVX2, DD3, DD0
-	VPXOR      (12*32)(inp), AA0, AA0; VPXOR (13*32)(inp), BB0, BB0; VPXOR (14*32)(inp), CC0, CC0; VPXOR (15*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (12*32)(oup); VMOVDQU BB0, (13*32)(oup); VMOVDQU CC0, (14*32)(oup); VMOVDQU DD0, (15*32)(oup)
-	LEAQ       (32*16)(inp), inp
-	SUBQ       $(32*16), inl
-	CMPQ       inl, $512
-	JG         sealAVX2MainLoop
-
-	// Tail can only hash 480 bytes
-	polyAdd(0*8(oup))
-	polyMulAVX2
-	polyAdd(2*8(oup))
-	polyMulAVX2
-	LEAQ 32(oup), oup
-
-	MOVQ $10, itr1
-	MOVQ $0, itr2
-	CMPQ inl, $128
-	JBE  sealAVX2Tail128
-	CMPQ inl, $256
-	JBE  sealAVX2Tail256
-	CMPQ inl, $384
-	JBE  sealAVX2Tail384
-	JMP  sealAVX2Tail512
-
-// ----------------------------------------------------------------------------
-// Special optimization for buffers smaller than 193 bytes
-seal192AVX2:
-	// For up to 192 bytes of ciphertext and 64 bytes for the poly key, we process four blocks
-	VMOVDQA AA0, AA1
-	VMOVDQA BB0, BB1
-	VMOVDQA CC0, CC1
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA AA0, AA2
-	VMOVDQA BB0, BB2
-	VMOVDQA CC0, CC2
-	VMOVDQA DD0, DD2
-	VMOVDQA DD1, TT3
-	MOVQ    $10, itr2
-
-sealAVX2192InnerCipherLoop:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR   $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1
-	VPALIGNR   $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR   $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	VPALIGNR   $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1
-	VPALIGNR   $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR   $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1
-	DECQ       itr2
-	JNE        sealAVX2192InnerCipherLoop
-	VPADDD     AA2, AA0, AA0; VPADDD AA2, AA1, AA1
-	VPADDD     BB2, BB0, BB0; VPADDD BB2, BB1, BB1
-	VPADDD     CC2, CC0, CC0; VPADDD CC2, CC1, CC1
-	VPADDD     DD2, DD0, DD0; VPADDD TT3, DD1, DD1
-	VPERM2I128 $0x02, AA0, BB0, TT0
-
-	// Clamp and store poly key
-	VPAND   ·polyClampMask<>(SB), TT0, TT0
-	VMOVDQA TT0, rsStoreAVX2
-
-	// Stream for up to 192 bytes
-	VPERM2I128 $0x13, AA0, BB0, AA0
-	VPERM2I128 $0x13, CC0, DD0, BB0
-	VPERM2I128 $0x02, AA1, BB1, CC0
-	VPERM2I128 $0x02, CC1, DD1, DD0
-	VPERM2I128 $0x13, AA1, BB1, AA1
-	VPERM2I128 $0x13, CC1, DD1, BB1
-
-sealAVX2ShortSeal:
-	// Hash aad
-	MOVQ ad_len+80(FP), itr2
-	CALL polyHashADInternal<>(SB)
-	XORQ itr1, itr1
-
-sealAVX2SealHash:
-	// itr1 holds the number of bytes encrypted but not yet hashed
-	CMPQ itr1, $16
-	JB   sealAVX2ShortSealLoop
-	polyAdd(0(oup))
-	polyMul
-	SUBQ $16, itr1
-	ADDQ $16, oup
-	JMP  sealAVX2SealHash
-
-sealAVX2ShortSealLoop:
-	CMPQ inl, $32
-	JB   sealAVX2ShortTail32
-	SUBQ $32, inl
-
-	// Load for encryption
-	VPXOR   (inp), AA0, AA0
-	VMOVDQU AA0, (oup)
-	LEAQ    (1*32)(inp), inp
-
-	// Now can hash
-	polyAdd(0*8(oup))
-	polyMulAVX2
-	polyAdd(2*8(oup))
-	polyMulAVX2
-	LEAQ (1*32)(oup), oup
-
-	// Shift stream left
-	VMOVDQA BB0, AA0
-	VMOVDQA CC0, BB0
-	VMOVDQA DD0, CC0
-	VMOVDQA AA1, DD0
-	VMOVDQA BB1, AA1
-	VMOVDQA CC1, BB1
-	VMOVDQA DD1, CC1
-	VMOVDQA AA2, DD1
-	VMOVDQA BB2, AA2
-	JMP     sealAVX2ShortSealLoop
-
-sealAVX2ShortTail32:
-	CMPQ    inl, $16
-	VMOVDQA A0, A1
-	JB      sealAVX2ShortDone
-
-	SUBQ $16, inl
-
-	// Load for encryption
-	VPXOR   (inp), A0, T0
-	VMOVDQU T0, (oup)
-	LEAQ    (1*16)(inp), inp
-
-	// Hash
-	polyAdd(0*8(oup))
-	polyMulAVX2
-	LEAQ       (1*16)(oup), oup
-	VPERM2I128 $0x11, AA0, AA0, AA0
-	VMOVDQA    A0, A1
-
-sealAVX2ShortDone:
-	VZEROUPPER
-	JMP sealSSETail
-
-// ----------------------------------------------------------------------------
-// Special optimization for buffers smaller than 321 bytes
-seal320AVX2:
-	// For up to 320 bytes of ciphertext and 64 bytes for the poly key, we process six blocks
-	VMOVDQA AA0, AA1; VMOVDQA BB0, BB1; VMOVDQA CC0, CC1; VPADDD ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA AA0, AA2; VMOVDQA BB0, BB2; VMOVDQA CC0, CC2; VPADDD ·avx2IncMask<>(SB), DD1, DD2
-	VMOVDQA BB0, TT1; VMOVDQA CC0, TT2; VMOVDQA DD0, TT3
-	MOVQ    $10, itr2
-
-sealAVX2320InnerCipherLoop:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2
-	DECQ     itr2
-	JNE      sealAVX2320InnerCipherLoop
-
-	VMOVDQA ·chacha20Constants<>(SB), TT0
-	VPADDD  TT0, AA0, AA0; VPADDD TT0, AA1, AA1; VPADDD TT0, AA2, AA2
-	VPADDD  TT1, BB0, BB0; VPADDD TT1, BB1, BB1; VPADDD TT1, BB2, BB2
-	VPADDD  TT2, CC0, CC0; VPADDD TT2, CC1, CC1; VPADDD TT2, CC2, CC2
-	VMOVDQA ·avx2IncMask<>(SB), TT0
-	VPADDD  TT3, DD0, DD0; VPADDD TT0, TT3, TT3
-	VPADDD  TT3, DD1, DD1; VPADDD TT0, TT3, TT3
-	VPADDD  TT3, DD2, DD2
-
-	// Clamp and store poly key
-	VPERM2I128 $0x02, AA0, BB0, TT0
-	VPAND      ·polyClampMask<>(SB), TT0, TT0
-	VMOVDQA    TT0, rsStoreAVX2
-
-	// Stream for up to 320 bytes
-	VPERM2I128 $0x13, AA0, BB0, AA0
-	VPERM2I128 $0x13, CC0, DD0, BB0
-	VPERM2I128 $0x02, AA1, BB1, CC0
-	VPERM2I128 $0x02, CC1, DD1, DD0
-	VPERM2I128 $0x13, AA1, BB1, AA1
-	VPERM2I128 $0x13, CC1, DD1, BB1
-	VPERM2I128 $0x02, AA2, BB2, CC1
-	VPERM2I128 $0x02, CC2, DD2, DD1
-	VPERM2I128 $0x13, AA2, BB2, AA2
-	VPERM2I128 $0x13, CC2, DD2, BB2
-	JMP        sealAVX2ShortSeal
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 128 bytes of ciphertext
-sealAVX2Tail128:
-	// Need to decrypt up to 128 bytes - prepare two blocks
-	// If we got here after the main loop - there are 512 encrypted bytes waiting to be hashed
-	// If we got here before the main loop - there are 448 encrpyred bytes waiting to be hashed
-	VMOVDQA ·chacha20Constants<>(SB), AA0
-	VMOVDQA state1StoreAVX2, BB0
-	VMOVDQA state2StoreAVX2, CC0
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0
-	VMOVDQA DD0, DD1
-
-sealAVX2Tail128LoopA:
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealAVX2Tail128LoopB:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0)
-	polyAdd(0(oup))
-	polyMul
-	VPALIGNR $4, BB0, BB0, BB0
-	VPALIGNR $8, CC0, CC0, CC0
-	VPALIGNR $12, DD0, DD0, DD0
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0)
-	polyAdd(16(oup))
-	polyMul
-	LEAQ     32(oup), oup
-	VPALIGNR $12, BB0, BB0, BB0
-	VPALIGNR $8, CC0, CC0, CC0
-	VPALIGNR $4, DD0, DD0, DD0
-	DECQ     itr1
-	JG       sealAVX2Tail128LoopA
-	DECQ     itr2
-	JGE      sealAVX2Tail128LoopB
-
-	VPADDD ·chacha20Constants<>(SB), AA0, AA1
-	VPADDD state1StoreAVX2, BB0, BB1
-	VPADDD state2StoreAVX2, CC0, CC1
-	VPADDD DD1, DD0, DD1
-
-	VPERM2I128 $0x02, AA1, BB1, AA0
-	VPERM2I128 $0x02, CC1, DD1, BB0
-	VPERM2I128 $0x13, AA1, BB1, CC0
-	VPERM2I128 $0x13, CC1, DD1, DD0
-	JMP        sealAVX2ShortSealLoop
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 256 bytes of ciphertext
-sealAVX2Tail256:
-	// Need to decrypt up to 256 bytes - prepare two blocks
-	// If we got here after the main loop - there are 512 encrypted bytes waiting to be hashed
-	// If we got here before the main loop - there are 448 encrpyred bytes waiting to be hashed
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA ·chacha20Constants<>(SB), AA1
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA state1StoreAVX2, BB1
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA state2StoreAVX2, CC1
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD1
-	VMOVDQA DD0, TT1
-	VMOVDQA DD1, TT2
-
-sealAVX2Tail256LoopA:
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealAVX2Tail256LoopB:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	polyAdd(0(oup))
-	polyMul
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0)
-	polyAdd(16(oup))
-	polyMul
-	LEAQ     32(oup), oup
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1
-	DECQ     itr1
-	JG       sealAVX2Tail256LoopA
-	DECQ     itr2
-	JGE      sealAVX2Tail256LoopB
-
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1
-	VPADDD     TT1, DD0, DD0; VPADDD TT2, DD1, DD1
-	VPERM2I128 $0x02, AA0, BB0, TT0
-	VPERM2I128 $0x02, CC0, DD0, TT1
-	VPERM2I128 $0x13, AA0, BB0, TT2
-	VPERM2I128 $0x13, CC0, DD0, TT3
-	VPXOR      (0*32)(inp), TT0, TT0; VPXOR (1*32)(inp), TT1, TT1; VPXOR (2*32)(inp), TT2, TT2; VPXOR (3*32)(inp), TT3, TT3
-	VMOVDQU    TT0, (0*32)(oup); VMOVDQU TT1, (1*32)(oup); VMOVDQU TT2, (2*32)(oup); VMOVDQU TT3, (3*32)(oup)
-	MOVQ       $128, itr1
-	LEAQ       128(inp), inp
-	SUBQ       $128, inl
-	VPERM2I128 $0x02, AA1, BB1, AA0
-	VPERM2I128 $0x02, CC1, DD1, BB0
-	VPERM2I128 $0x13, AA1, BB1, CC0
-	VPERM2I128 $0x13, CC1, DD1, DD0
-
-	JMP sealAVX2SealHash
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 384 bytes of ciphertext
-sealAVX2Tail384:
-	// Need to decrypt up to 384 bytes - prepare two blocks
-	// If we got here after the main loop - there are 512 encrypted bytes waiting to be hashed
-	// If we got here before the main loop - there are 448 encrpyred bytes waiting to be hashed
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2
-	VMOVDQA DD0, TT1; VMOVDQA DD1, TT2; VMOVDQA DD2, TT3
-
-sealAVX2Tail384LoopA:
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealAVX2Tail384LoopB:
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	polyAdd(0(oup))
-	polyMul
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2
-	chachaQR_AVX2(AA0, BB0, CC0, DD0, TT0); chachaQR_AVX2(AA1, BB1, CC1, DD1, TT0); chachaQR_AVX2(AA2, BB2, CC2, DD2, TT0)
-	polyAdd(16(oup))
-	polyMul
-	LEAQ     32(oup), oup
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2
-	DECQ     itr1
-	JG       sealAVX2Tail384LoopA
-	DECQ     itr2
-	JGE      sealAVX2Tail384LoopB
-
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2
-	VPADDD     TT1, DD0, DD0; VPADDD TT2, DD1, DD1; VPADDD TT3, DD2, DD2
-	VPERM2I128 $0x02, AA0, BB0, TT0
-	VPERM2I128 $0x02, CC0, DD0, TT1
-	VPERM2I128 $0x13, AA0, BB0, TT2
-	VPERM2I128 $0x13, CC0, DD0, TT3
-	VPXOR      (0*32)(inp), TT0, TT0; VPXOR (1*32)(inp), TT1, TT1; VPXOR (2*32)(inp), TT2, TT2; VPXOR (3*32)(inp), TT3, TT3
-	VMOVDQU    TT0, (0*32)(oup); VMOVDQU TT1, (1*32)(oup); VMOVDQU TT2, (2*32)(oup); VMOVDQU TT3, (3*32)(oup)
-	VPERM2I128 $0x02, AA1, BB1, TT0
-	VPERM2I128 $0x02, CC1, DD1, TT1
-	VPERM2I128 $0x13, AA1, BB1, TT2
-	VPERM2I128 $0x13, CC1, DD1, TT3
-	VPXOR      (4*32)(inp), TT0, TT0; VPXOR (5*32)(inp), TT1, TT1; VPXOR (6*32)(inp), TT2, TT2; VPXOR (7*32)(inp), TT3, TT3
-	VMOVDQU    TT0, (4*32)(oup); VMOVDQU TT1, (5*32)(oup); VMOVDQU TT2, (6*32)(oup); VMOVDQU TT3, (7*32)(oup)
-	MOVQ       $256, itr1
-	LEAQ       256(inp), inp
-	SUBQ       $256, inl
-	VPERM2I128 $0x02, AA2, BB2, AA0
-	VPERM2I128 $0x02, CC2, DD2, BB0
-	VPERM2I128 $0x13, AA2, BB2, CC0
-	VPERM2I128 $0x13, CC2, DD2, DD0
-
-	JMP sealAVX2SealHash
-
-// ----------------------------------------------------------------------------
-// Special optimization for the last 512 bytes of ciphertext
-sealAVX2Tail512:
-	// Need to decrypt up to 512 bytes - prepare two blocks
-	// If we got here after the main loop - there are 512 encrypted bytes waiting to be hashed
-	// If we got here before the main loop - there are 448 encrpyred bytes waiting to be hashed
-	VMOVDQA ·chacha20Constants<>(SB), AA0; VMOVDQA AA0, AA1; VMOVDQA AA0, AA2; VMOVDQA AA0, AA3
-	VMOVDQA state1StoreAVX2, BB0; VMOVDQA BB0, BB1; VMOVDQA BB0, BB2; VMOVDQA BB0, BB3
-	VMOVDQA state2StoreAVX2, CC0; VMOVDQA CC0, CC1; VMOVDQA CC0, CC2; VMOVDQA CC0, CC3
-	VMOVDQA ctr3StoreAVX2, DD0
-	VPADDD  ·avx2IncMask<>(SB), DD0, DD0; VPADDD ·avx2IncMask<>(SB), DD0, DD1; VPADDD ·avx2IncMask<>(SB), DD1, DD2; VPADDD ·avx2IncMask<>(SB), DD2, DD3
-	VMOVDQA DD0, ctr0StoreAVX2; VMOVDQA DD1, ctr1StoreAVX2; VMOVDQA DD2, ctr2StoreAVX2; VMOVDQA DD3, ctr3StoreAVX2
-
-sealAVX2Tail512LoopA:
-	polyAdd(0(oup))
-	polyMul
-	LEAQ 16(oup), oup
-
-sealAVX2Tail512LoopB:
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	polyAdd(0*8(oup))
-	polyMulAVX2
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPALIGNR $4, BB0, BB0, BB0; VPALIGNR $4, BB1, BB1, BB1; VPALIGNR $4, BB2, BB2, BB2; VPALIGNR $4, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $12, DD0, DD0, DD0; VPALIGNR $12, DD1, DD1, DD1; VPALIGNR $12, DD2, DD2, DD2; VPALIGNR $12, DD3, DD3, DD3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol16<>(SB), DD0, DD0; VPSHUFB ·rol16<>(SB), DD1, DD1; VPSHUFB ·rol16<>(SB), DD2, DD2; VPSHUFB ·rol16<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	polyAdd(2*8(oup))
-	polyMulAVX2
-	LEAQ     (4*8)(oup), oup
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $12, BB0, CC3; VPSRLD $20, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $12, BB1, CC3; VPSRLD $20, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $12, BB2, CC3; VPSRLD $20, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $12, BB3, CC3; VPSRLD $20, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPADDD   BB0, AA0, AA0; VPADDD BB1, AA1, AA1; VPADDD BB2, AA2, AA2; VPADDD BB3, AA3, AA3
-	VPXOR    AA0, DD0, DD0; VPXOR AA1, DD1, DD1; VPXOR AA2, DD2, DD2; VPXOR AA3, DD3, DD3
-	VPSHUFB  ·rol8<>(SB), DD0, DD0; VPSHUFB ·rol8<>(SB), DD1, DD1; VPSHUFB ·rol8<>(SB), DD2, DD2; VPSHUFB ·rol8<>(SB), DD3, DD3
-	VPADDD   DD0, CC0, CC0; VPADDD DD1, CC1, CC1; VPADDD DD2, CC2, CC2; VPADDD DD3, CC3, CC3
-	VPXOR    CC0, BB0, BB0; VPXOR CC1, BB1, BB1; VPXOR CC2, BB2, BB2; VPXOR CC3, BB3, BB3
-	VMOVDQA  CC3, tmpStoreAVX2
-	VPSLLD   $7, BB0, CC3; VPSRLD $25, BB0, BB0; VPXOR CC3, BB0, BB0
-	VPSLLD   $7, BB1, CC3; VPSRLD $25, BB1, BB1; VPXOR CC3, BB1, BB1
-	VPSLLD   $7, BB2, CC3; VPSRLD $25, BB2, BB2; VPXOR CC3, BB2, BB2
-	VPSLLD   $7, BB3, CC3; VPSRLD $25, BB3, BB3; VPXOR CC3, BB3, BB3
-	VMOVDQA  tmpStoreAVX2, CC3
-	VPALIGNR $12, BB0, BB0, BB0; VPALIGNR $12, BB1, BB1, BB1; VPALIGNR $12, BB2, BB2, BB2; VPALIGNR $12, BB3, BB3, BB3
-	VPALIGNR $8, CC0, CC0, CC0; VPALIGNR $8, CC1, CC1, CC1; VPALIGNR $8, CC2, CC2, CC2; VPALIGNR $8, CC3, CC3, CC3
-	VPALIGNR $4, DD0, DD0, DD0; VPALIGNR $4, DD1, DD1, DD1; VPALIGNR $4, DD2, DD2, DD2; VPALIGNR $4, DD3, DD3, DD3
-
-	DECQ itr1
-	JG   sealAVX2Tail512LoopA
-	DECQ itr2
-	JGE  sealAVX2Tail512LoopB
-
-	VPADDD     ·chacha20Constants<>(SB), AA0, AA0; VPADDD ·chacha20Constants<>(SB), AA1, AA1; VPADDD ·chacha20Constants<>(SB), AA2, AA2; VPADDD ·chacha20Constants<>(SB), AA3, AA3
-	VPADDD     state1StoreAVX2, BB0, BB0; VPADDD state1StoreAVX2, BB1, BB1; VPADDD state1StoreAVX2, BB2, BB2; VPADDD state1StoreAVX2, BB3, BB3
-	VPADDD     state2StoreAVX2, CC0, CC0; VPADDD state2StoreAVX2, CC1, CC1; VPADDD state2StoreAVX2, CC2, CC2; VPADDD state2StoreAVX2, CC3, CC3
-	VPADDD     ctr0StoreAVX2, DD0, DD0; VPADDD ctr1StoreAVX2, DD1, DD1; VPADDD ctr2StoreAVX2, DD2, DD2; VPADDD ctr3StoreAVX2, DD3, DD3
-	VMOVDQA    CC3, tmpStoreAVX2
-	VPERM2I128 $0x02, AA0, BB0, CC3
-	VPXOR      (0*32)(inp), CC3, CC3
-	VMOVDQU    CC3, (0*32)(oup)
-	VPERM2I128 $0x02, CC0, DD0, CC3
-	VPXOR      (1*32)(inp), CC3, CC3
-	VMOVDQU    CC3, (1*32)(oup)
-	VPERM2I128 $0x13, AA0, BB0, CC3
-	VPXOR      (2*32)(inp), CC3, CC3
-	VMOVDQU    CC3, (2*32)(oup)
-	VPERM2I128 $0x13, CC0, DD0, CC3
-	VPXOR      (3*32)(inp), CC3, CC3
-	VMOVDQU    CC3, (3*32)(oup)
-
-	VPERM2I128 $0x02, AA1, BB1, AA0
-	VPERM2I128 $0x02, CC1, DD1, BB0
-	VPERM2I128 $0x13, AA1, BB1, CC0
-	VPERM2I128 $0x13, CC1, DD1, DD0
-	VPXOR      (4*32)(inp), AA0, AA0; VPXOR (5*32)(inp), BB0, BB0; VPXOR (6*32)(inp), CC0, CC0; VPXOR (7*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (4*32)(oup); VMOVDQU BB0, (5*32)(oup); VMOVDQU CC0, (6*32)(oup); VMOVDQU DD0, (7*32)(oup)
-
-	VPERM2I128 $0x02, AA2, BB2, AA0
-	VPERM2I128 $0x02, CC2, DD2, BB0
-	VPERM2I128 $0x13, AA2, BB2, CC0
-	VPERM2I128 $0x13, CC2, DD2, DD0
-	VPXOR      (8*32)(inp), AA0, AA0; VPXOR (9*32)(inp), BB0, BB0; VPXOR (10*32)(inp), CC0, CC0; VPXOR (11*32)(inp), DD0, DD0
-	VMOVDQU    AA0, (8*32)(oup); VMOVDQU BB0, (9*32)(oup); VMOVDQU CC0, (10*32)(oup); VMOVDQU DD0, (11*32)(oup)
-
-	MOVQ       $384, itr1
-	LEAQ       384(inp), inp
-	SUBQ       $384, inl
-	VPERM2I128 $0x02, AA3, BB3, AA0
-	VPERM2I128 $0x02, tmpStoreAVX2, DD3, BB0
-	VPERM2I128 $0x13, AA3, BB3, CC0
-	VPERM2I128 $0x13, tmpStoreAVX2, DD3, DD0
-
-	JMP sealAVX2SealHash
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go
deleted file mode 100644
index c279712..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_generic.go
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package chacha20poly1305
-
-import (
-	"encoding/binary"
-
-	"golang.org/x/crypto/internal/chacha20"
-	"golang.org/x/crypto/internal/subtle"
-	"golang.org/x/crypto/poly1305"
-)
-
-func roundTo16(n int) int {
-	return 16 * ((n + 15) / 16)
-}
-
-func (c *chacha20poly1305) sealGeneric(dst, nonce, plaintext, additionalData []byte) []byte {
-	ret, out := sliceForAppend(dst, len(plaintext)+poly1305.TagSize)
-	if subtle.InexactOverlap(out, plaintext) {
-		panic("chacha20poly1305: invalid buffer overlap")
-	}
-
-	var polyKey [32]byte
-	s := chacha20.New(c.key, [3]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-	})
-	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip the next 32 bytes
-	s.XORKeyStream(out, plaintext)
-
-	polyInput := make([]byte, roundTo16(len(additionalData))+roundTo16(len(plaintext))+8+8)
-	copy(polyInput, additionalData)
-	copy(polyInput[roundTo16(len(additionalData)):], out[:len(plaintext)])
-	binary.LittleEndian.PutUint64(polyInput[len(polyInput)-16:], uint64(len(additionalData)))
-	binary.LittleEndian.PutUint64(polyInput[len(polyInput)-8:], uint64(len(plaintext)))
-
-	var tag [poly1305.TagSize]byte
-	poly1305.Sum(&tag, polyInput, &polyKey)
-	copy(out[len(plaintext):], tag[:])
-
-	return ret
-}
-
-func (c *chacha20poly1305) openGeneric(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	var tag [poly1305.TagSize]byte
-	copy(tag[:], ciphertext[len(ciphertext)-16:])
-	ciphertext = ciphertext[:len(ciphertext)-16]
-
-	var polyKey [32]byte
-	s := chacha20.New(c.key, [3]uint32{
-		binary.LittleEndian.Uint32(nonce[0:4]),
-		binary.LittleEndian.Uint32(nonce[4:8]),
-		binary.LittleEndian.Uint32(nonce[8:12]),
-	})
-	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip the next 32 bytes
-
-	polyInput := make([]byte, roundTo16(len(additionalData))+roundTo16(len(ciphertext))+8+8)
-	copy(polyInput, additionalData)
-	copy(polyInput[roundTo16(len(additionalData)):], ciphertext)
-	binary.LittleEndian.PutUint64(polyInput[len(polyInput)-16:], uint64(len(additionalData)))
-	binary.LittleEndian.PutUint64(polyInput[len(polyInput)-8:], uint64(len(ciphertext)))
-
-	ret, out := sliceForAppend(dst, len(ciphertext))
-	if subtle.InexactOverlap(out, ciphertext) {
-		panic("chacha20poly1305: invalid buffer overlap")
-	}
-	if !poly1305.Verify(&tag, polyInput, &polyKey) {
-		for i := range out {
-			out[i] = 0
-		}
-		return nil, errOpen
-	}
-
-	s.XORKeyStream(out, ciphertext)
-	return ret, nil
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_noasm.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_noasm.go
deleted file mode 100644
index 4c2eb70..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_noasm.go
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64 !go1.7 gccgo appengine
-
-package chacha20poly1305
-
-func (c *chacha20poly1305) seal(dst, nonce, plaintext, additionalData []byte) []byte {
-	return c.sealGeneric(dst, nonce, plaintext, additionalData)
-}
-
-func (c *chacha20poly1305) open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {
-	return c.openGeneric(dst, nonce, ciphertext, additionalData)
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go
deleted file mode 100644
index 78f981a..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_test.go
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package chacha20poly1305
-
-import (
-	"bytes"
-	cr "crypto/rand"
-	"encoding/hex"
-	mr "math/rand"
-	"testing"
-)
-
-func TestVectors(t *testing.T) {
-	for i, test := range chacha20Poly1305Tests {
-		key, _ := hex.DecodeString(test.key)
-		nonce, _ := hex.DecodeString(test.nonce)
-		ad, _ := hex.DecodeString(test.aad)
-		plaintext, _ := hex.DecodeString(test.plaintext)
-
-		aead, err := New(key)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		ct := aead.Seal(nil, nonce, plaintext, ad)
-		if ctHex := hex.EncodeToString(ct); ctHex != test.out {
-			t.Errorf("#%d: got %s, want %s", i, ctHex, test.out)
-			continue
-		}
-
-		plaintext2, err := aead.Open(nil, nonce, ct, ad)
-		if err != nil {
-			t.Errorf("#%d: Open failed", i)
-			continue
-		}
-
-		if !bytes.Equal(plaintext, plaintext2) {
-			t.Errorf("#%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
-			continue
-		}
-
-		if len(ad) > 0 {
-			alterAdIdx := mr.Intn(len(ad))
-			ad[alterAdIdx] ^= 0x80
-			if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
-				t.Errorf("#%d: Open was successful after altering additional data", i)
-			}
-			ad[alterAdIdx] ^= 0x80
-		}
-
-		alterNonceIdx := mr.Intn(aead.NonceSize())
-		nonce[alterNonceIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
-			t.Errorf("#%d: Open was successful after altering nonce", i)
-		}
-		nonce[alterNonceIdx] ^= 0x80
-
-		alterCtIdx := mr.Intn(len(ct))
-		ct[alterCtIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce, ct, ad); err == nil {
-			t.Errorf("#%d: Open was successful after altering ciphertext", i)
-		}
-		ct[alterCtIdx] ^= 0x80
-	}
-}
-
-func TestRandom(t *testing.T) {
-	// Some random tests to verify Open(Seal) == Plaintext
-	for i := 0; i < 256; i++ {
-		var nonce [12]byte
-		var key [32]byte
-
-		al := mr.Intn(128)
-		pl := mr.Intn(16384)
-		ad := make([]byte, al)
-		plaintext := make([]byte, pl)
-		cr.Read(key[:])
-		cr.Read(nonce[:])
-		cr.Read(ad)
-		cr.Read(plaintext)
-
-		aead, err := New(key[:])
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		ct := aead.Seal(nil, nonce[:], plaintext, ad)
-
-		plaintext2, err := aead.Open(nil, nonce[:], ct, ad)
-		if err != nil {
-			t.Errorf("Random #%d: Open failed", i)
-			continue
-		}
-
-		if !bytes.Equal(plaintext, plaintext2) {
-			t.Errorf("Random #%d: plaintext's don't match: got %x vs %x", i, plaintext2, plaintext)
-			continue
-		}
-
-		if len(ad) > 0 {
-			alterAdIdx := mr.Intn(len(ad))
-			ad[alterAdIdx] ^= 0x80
-			if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-				t.Errorf("Random #%d: Open was successful after altering additional data", i)
-			}
-			ad[alterAdIdx] ^= 0x80
-		}
-
-		alterNonceIdx := mr.Intn(aead.NonceSize())
-		nonce[alterNonceIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-			t.Errorf("Random #%d: Open was successful after altering nonce", i)
-		}
-		nonce[alterNonceIdx] ^= 0x80
-
-		alterCtIdx := mr.Intn(len(ct))
-		ct[alterCtIdx] ^= 0x80
-		if _, err := aead.Open(nil, nonce[:], ct, ad); err == nil {
-			t.Errorf("Random #%d: Open was successful after altering ciphertext", i)
-		}
-		ct[alterCtIdx] ^= 0x80
-	}
-}
-
-func benchamarkChaCha20Poly1305Seal(b *testing.B, buf []byte) {
-	b.SetBytes(int64(len(buf)))
-
-	var key [32]byte
-	var nonce [12]byte
-	var ad [13]byte
-	var out []byte
-
-	aead, _ := New(key[:])
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		out = aead.Seal(out[:0], nonce[:], buf[:], ad[:])
-	}
-}
-
-func benchamarkChaCha20Poly1305Open(b *testing.B, buf []byte) {
-	b.SetBytes(int64(len(buf)))
-
-	var key [32]byte
-	var nonce [12]byte
-	var ad [13]byte
-	var ct []byte
-	var out []byte
-
-	aead, _ := New(key[:])
-	ct = aead.Seal(ct[:0], nonce[:], buf[:], ad[:])
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		out, _ = aead.Open(out[:0], nonce[:], ct[:], ad[:])
-	}
-}
-
-func BenchmarkChacha20Poly1305Open_64(b *testing.B) {
-	benchamarkChaCha20Poly1305Open(b, make([]byte, 64))
-}
-
-func BenchmarkChacha20Poly1305Seal_64(b *testing.B) {
-	benchamarkChaCha20Poly1305Seal(b, make([]byte, 64))
-}
-
-func BenchmarkChacha20Poly1305Open_1350(b *testing.B) {
-	benchamarkChaCha20Poly1305Open(b, make([]byte, 1350))
-}
-
-func BenchmarkChacha20Poly1305Seal_1350(b *testing.B) {
-	benchamarkChaCha20Poly1305Seal(b, make([]byte, 1350))
-}
-
-func BenchmarkChacha20Poly1305Open_8K(b *testing.B) {
-	benchamarkChaCha20Poly1305Open(b, make([]byte, 8*1024))
-}
-
-func BenchmarkChacha20Poly1305Seal_8K(b *testing.B) {
-	benchamarkChaCha20Poly1305Seal(b, make([]byte, 8*1024))
-}
diff --git a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_vectors_test.go b/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_vectors_test.go
deleted file mode 100644
index 64f6a72..0000000
--- a/vendor/golang.org/x/crypto/chacha20poly1305/chacha20poly1305_vectors_test.go
+++ /dev/null
@@ -1,339 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package chacha20poly1305
-
-var chacha20Poly1305Tests = []struct {
-	plaintext, aad, key, nonce, out string
-}{
-	{
-		"",
-		"",
-		"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f",
-		"070000004041424344454647",
-		"a0784d7a4716f3feb4f64e7f4b39bf04",
-	},
-	{
-		"4c616469657320616e642047656e746c656d656e206f662074686520636c617373206f66202739393a204966204920636f756c64206f6666657220796f75206f6e6c79206f6e652074697020666f7220746865206675747572652c2073756e73637265656e20776f756c642062652069742e",
-		"50515253c0c1c2c3c4c5c6c7",
-		"808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f",
-		"070000004041424344454647",
-		"d31a8d34648e60db7b86afbc53ef7ec2a4aded51296e08fea9e2b5a736ee62d63dbea45e8ca9671282fafb69da92728b1a71de0a9e060b2905d6a5b67ecd3b3692ddbd7f2d778b8c9803aee328091b58fab324e4fad675945585808b4831d7bc3ff4def08e4b7a9de576d26586cec64b61161ae10b594f09e26a7e902ecbd0600691",
-	},
-	{
-		"1400000cebccee3bf561b292340fec60",
-		"00000000000000001603030010",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"2b487a2941bc07f3cc76d1a531662588ee7c2598e59778c24d5b27559a80d163",
-	},
-	{
-		"0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
-		"00000000000000000000000000",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"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",
-	},
-	{
-		"0967de57eefe1aaa999b9b746d88a1a248000d8734e0e938c6aa87",
-		"e4f0a3a4f90a8250f8806aa319053e8d73c62f150e2f239563037e9cc92823ad18c65111d0d462c954cc6c6ed2aafb45702a5a7e597d13bd8091594ab97cf7d1",
-		"f2db28620582e05f00f31c808475ca3df1c20e340bf14828352499466d79295f",
-		"4349e2131d44dc711148dfe3",
-		"bd06cc144fdc0d8b735fa4452eabbf78fd4ad2966ea41a84f68da40ca2da439777bc2ba6c4ec2de0d003eb",
-	},
-	{
-		"c4c920fb52a56fe66eaa8aa3fa187c543e3db8e5c8094c4313dc4ed35dfc5821c5791d171e8cfe8d37883031a0ad",
-		"85deea3dc4",
-		"05ff881d1e151bab4ca3db7d44880222733fe62686f71ce1e4610f2ea19599a7",
-		"b34710f65aed442e4a40866b",
-		"b154452fb7e85d175dd0b0db08591565c5587a725cf22386922f5d27a01015aba778975510b38754b2182e24352f019b7ad493e1ed255906715644aec6e0",
-	},
-	{
-		"c4b337df5e83823900c6c202e93541cf5bc8c677a9aad8b8d87a4d7221e294e595cbc4f34e462d4e0def50f62491c57f598cf60236cfba0f4908816aea154f80e013732e59a07c668fcc5cb35d2232b7ae29b9e4f874f3417c74ab6689fae6690d5a9766fa13cd8adf293d3d4b70f4f999adde9121d1d29d467d04cf77ea398444d0ea3fe4b7c9c3e106002c76f4260fa204a0c3d5",
-		"72611bef65eb664f24ea94f4d5d3d88c9c9c6da29c9a1991c02833c4c9f6993b57b5",
-		"dd0f2d4bb1c9e5ca5aa5f38d69bc8402f7dbb7229857b4a41b3044d481b7655e",
-		"2bbca0910cc47ca0b8517391",
-		"83aa28d6d98901e2981d21d3758ae4db8cce07fe08d82ca6f036a68daa88a7dda56eeb38040c942bdda0fd2d369eec44bd070e2c9314992f68dc16989a6ac0c3912c378cf3254f4bae74a66b075e828df6f855c0d8a827ffed3c03582c12a9112eeb7be43dfe8bd78beb2d1e56678b99a0372531727cb7f2b98d2f917ec10de93fe86267100c20356e80528c5066688c8b7acba76e591449952343f663993d5b642e59eb0f",
-	},
-	{
-		"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",
-		"74ba3372d308910b5c9c3885f41252d57556",
-		"9cf77bd06a4ed8fb59349791b98ba40b6019611942f5768e8be2ee88477149e3",
-		"b928935c4c966c60fd6583c0",
-		"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",
-	},
-	{
-		"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",
-		"7e8da4f3018f673f8e43bd7a1dee05f8031ec49129c361abbc2a434e9eaf791c3c1d0f3dad767d3bba3ab6d728bbcf2bd994bd03571eae1348f161e6a1da03ddf7121ba4",
-		"7ee32dd501dce849cd492f6e23324c1a4567bfceff9f11d1352bcb8615f1b093",
-		"8998e043d2961afa51ea262a",
-		"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",
-	},
-	{
-		"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",
-		"63b90dd89066ad7b61cc39497899a8f14399eace1810f5fe3b76d2501f5d8f83169c5ba602082164d45aad4df3553e36ef29050739fa067470d8c58f3554124bf06df1f27612564a6c04976059d69648ff9b50389556ad052e729563c6a7",
-		"7d5c4314a542aff57a454b274a7999dfdc5f878a159c29be27dabdfcf7c06975",
-		"aeb6159fa88bb1ffd51d036d",
-		"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",
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-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"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",
-	},
-	{
-		"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",
-		"7cbb22fce466da610b63af62bc83b4692f3affaf271693ac071fb86d11342d",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"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",
-	},
-	{
-		"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",
-		"",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"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",
-	},
-	{
-		"0fb826ddb2eb5e708de203d0438be12cf708d635ebdbae56278be09077009586b9bc646ba7c2db35a5de05e86ae71461efea96dac64430edcf117d461113cccacf303576f310ab98efb180599894ba877e50614494923163a3afa9b4c2757f91a6b40799c5b331b464b10dfc45c783c317e408ab76390e19e8b7ceaa2c4d3bd201436bc6f69c7a5a4d8756924ed95665bd5e1034971e4d80d51b2a",
-		"026866d46aa940309fdcabf92a324fbc",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"30f05cf8189bb7b8b4f560e746e228c4cc7e86e8f2fa66e1afe212d1855db51070acd5eb34ce80b2e223957df50fde4c2531d97fc9e573725e7a5e47f0dfc4da1942620320bb2deaf8b17937bae4218d04db8e76f6efe84a117292159507c9f8a09fb2c17921d7762510dbf1dac7b62b1bd7572e3e2cf008d01c445c7fa78833235034281ae180e051451c6a64f22ca9708634bd0d604e4cfcd971b13742efa5b6363e662a875daccb2b00",
-	},
-	{
-		"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",
-		"56",
-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
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-	},
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-		"135a28170fe89066da7bcff3a9ccc1b27dfe942a6f47b23835ef746aaea63dc10066d90f4e697528e5451b8e11dd408fdbd4b94a1c6c82515bf7bc099df9cb9d5fa4acad0d22d5f267f18078cec107a995c1f3b12d7603886dbf910ab85ca7180053c50e759b00dc8c81555a425c03d71df6894a6c8cd2d94b64e303c08a1bc1dee1cf537ccf300850856292e1656aff5bf349c87f1ca1ca8085cd400fe901edcad04146a0714ef0f6b083d715edd670e020385f3cda29bc5ff6fc6edffe5ca9ce9def6e0e3d5f04ede2db02cfb2",
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-		"a5117e70953568bf750862df9e6f92af81677c3a188e847917a4a915bda7792e",
-		"129039b5572e8a7a8131f76a",
-		"2c125232a59879aee36cacc4aca5085a4688c4f776667a8fbd86862b5cfb1d57c976688fdd652eafa2b88b1b8e358aa2110ff6ef13cdc1ceca9c9f087c35c38d89d6fbd8de89538070f17916ecb19ca3ef4a1c834f0bdaa1df62aaabef2e117106787056c909e61ecd208357dd5c363f11c5d6cf24992cc873cf69f59360a820fcf290bd90b2cab24c47286acb4e1033962b6d41e562a206a94796a8ab1c6b8bade804ff9bdf5ba6062d2c1f8fe0f4dfc05720bd9a612b92c26789f9f6a7ce43f5e8e3aee99a9cd7d6c11eaa611983c36935b0dda57d898a60a0ab7c4b54",
-	},
-}
diff --git a/vendor/golang.org/x/crypto/codereview.cfg b/vendor/golang.org/x/crypto/codereview.cfg
deleted file mode 100644
index 3f8b14b..0000000
--- a/vendor/golang.org/x/crypto/codereview.cfg
+++ /dev/null
@@ -1 +0,0 @@
-issuerepo: golang/go
diff --git a/vendor/golang.org/x/crypto/cryptobyte/asn1.go b/vendor/golang.org/x/crypto/cryptobyte/asn1.go
deleted file mode 100644
index 528b9bf..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/asn1.go
+++ /dev/null
@@ -1,751 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cryptobyte
-
-import (
-	encoding_asn1 "encoding/asn1"
-	"fmt"
-	"math/big"
-	"reflect"
-	"time"
-
-	"golang.org/x/crypto/cryptobyte/asn1"
-)
-
-// This file contains ASN.1-related methods for String and Builder.
-
-// Builder
-
-// AddASN1Int64 appends a DER-encoded ASN.1 INTEGER.
-func (b *Builder) AddASN1Int64(v int64) {
-	b.addASN1Signed(asn1.INTEGER, v)
-}
-
-// AddASN1Int64WithTag appends a DER-encoded ASN.1 INTEGER with the
-// given tag.
-func (b *Builder) AddASN1Int64WithTag(v int64, tag asn1.Tag) {
-	b.addASN1Signed(tag, v)
-}
-
-// AddASN1Enum appends a DER-encoded ASN.1 ENUMERATION.
-func (b *Builder) AddASN1Enum(v int64) {
-	b.addASN1Signed(asn1.ENUM, v)
-}
-
-func (b *Builder) addASN1Signed(tag asn1.Tag, v int64) {
-	b.AddASN1(tag, func(c *Builder) {
-		length := 1
-		for i := v; i >= 0x80 || i < -0x80; i >>= 8 {
-			length++
-		}
-
-		for ; length > 0; length-- {
-			i := v >> uint((length-1)*8) & 0xff
-			c.AddUint8(uint8(i))
-		}
-	})
-}
-
-// AddASN1Uint64 appends a DER-encoded ASN.1 INTEGER.
-func (b *Builder) AddASN1Uint64(v uint64) {
-	b.AddASN1(asn1.INTEGER, func(c *Builder) {
-		length := 1
-		for i := v; i >= 0x80; i >>= 8 {
-			length++
-		}
-
-		for ; length > 0; length-- {
-			i := v >> uint((length-1)*8) & 0xff
-			c.AddUint8(uint8(i))
-		}
-	})
-}
-
-// AddASN1BigInt appends a DER-encoded ASN.1 INTEGER.
-func (b *Builder) AddASN1BigInt(n *big.Int) {
-	if b.err != nil {
-		return
-	}
-
-	b.AddASN1(asn1.INTEGER, func(c *Builder) {
-		if n.Sign() < 0 {
-			// A negative number has to be converted to two's-complement form. So we
-			// invert and subtract 1. If the most-significant-bit isn't set then
-			// we'll need to pad the beginning with 0xff in order to keep the number
-			// negative.
-			nMinus1 := new(big.Int).Neg(n)
-			nMinus1.Sub(nMinus1, bigOne)
-			bytes := nMinus1.Bytes()
-			for i := range bytes {
-				bytes[i] ^= 0xff
-			}
-			if bytes[0]&0x80 == 0 {
-				c.add(0xff)
-			}
-			c.add(bytes...)
-		} else if n.Sign() == 0 {
-			c.add(0)
-		} else {
-			bytes := n.Bytes()
-			if bytes[0]&0x80 != 0 {
-				c.add(0)
-			}
-			c.add(bytes...)
-		}
-	})
-}
-
-// AddASN1OctetString appends a DER-encoded ASN.1 OCTET STRING.
-func (b *Builder) AddASN1OctetString(bytes []byte) {
-	b.AddASN1(asn1.OCTET_STRING, func(c *Builder) {
-		c.AddBytes(bytes)
-	})
-}
-
-const generalizedTimeFormatStr = "20060102150405Z0700"
-
-// AddASN1GeneralizedTime appends a DER-encoded ASN.1 GENERALIZEDTIME.
-func (b *Builder) AddASN1GeneralizedTime(t time.Time) {
-	if t.Year() < 0 || t.Year() > 9999 {
-		b.err = fmt.Errorf("cryptobyte: cannot represent %v as a GeneralizedTime", t)
-		return
-	}
-	b.AddASN1(asn1.GeneralizedTime, func(c *Builder) {
-		c.AddBytes([]byte(t.Format(generalizedTimeFormatStr)))
-	})
-}
-
-// AddASN1BitString appends a DER-encoded ASN.1 BIT STRING. This does not
-// support BIT STRINGs that are not a whole number of bytes.
-func (b *Builder) AddASN1BitString(data []byte) {
-	b.AddASN1(asn1.BIT_STRING, func(b *Builder) {
-		b.AddUint8(0)
-		b.AddBytes(data)
-	})
-}
-
-func (b *Builder) addBase128Int(n int64) {
-	var length int
-	if n == 0 {
-		length = 1
-	} else {
-		for i := n; i > 0; i >>= 7 {
-			length++
-		}
-	}
-
-	for i := length - 1; i >= 0; i-- {
-		o := byte(n >> uint(i*7))
-		o &= 0x7f
-		if i != 0 {
-			o |= 0x80
-		}
-
-		b.add(o)
-	}
-}
-
-func isValidOID(oid encoding_asn1.ObjectIdentifier) bool {
-	if len(oid) < 2 {
-		return false
-	}
-
-	if oid[0] > 2 || (oid[0] <= 1 && oid[1] >= 40) {
-		return false
-	}
-
-	for _, v := range oid {
-		if v < 0 {
-			return false
-		}
-	}
-
-	return true
-}
-
-func (b *Builder) AddASN1ObjectIdentifier(oid encoding_asn1.ObjectIdentifier) {
-	b.AddASN1(asn1.OBJECT_IDENTIFIER, func(b *Builder) {
-		if !isValidOID(oid) {
-			b.err = fmt.Errorf("cryptobyte: invalid OID: %v", oid)
-			return
-		}
-
-		b.addBase128Int(int64(oid[0])*40 + int64(oid[1]))
-		for _, v := range oid[2:] {
-			b.addBase128Int(int64(v))
-		}
-	})
-}
-
-func (b *Builder) AddASN1Boolean(v bool) {
-	b.AddASN1(asn1.BOOLEAN, func(b *Builder) {
-		if v {
-			b.AddUint8(0xff)
-		} else {
-			b.AddUint8(0)
-		}
-	})
-}
-
-func (b *Builder) AddASN1NULL() {
-	b.add(uint8(asn1.NULL), 0)
-}
-
-// MarshalASN1 calls encoding_asn1.Marshal on its input and appends the result if
-// successful or records an error if one occurred.
-func (b *Builder) MarshalASN1(v interface{}) {
-	// NOTE(martinkr): This is somewhat of a hack to allow propagation of
-	// encoding_asn1.Marshal errors into Builder.err. N.B. if you call MarshalASN1 with a
-	// value embedded into a struct, its tag information is lost.
-	if b.err != nil {
-		return
-	}
-	bytes, err := encoding_asn1.Marshal(v)
-	if err != nil {
-		b.err = err
-		return
-	}
-	b.AddBytes(bytes)
-}
-
-// AddASN1 appends an ASN.1 object. The object is prefixed with the given tag.
-// Tags greater than 30 are not supported and result in an error (i.e.
-// low-tag-number form only). The child builder passed to the
-// BuilderContinuation can be used to build the content of the ASN.1 object.
-func (b *Builder) AddASN1(tag asn1.Tag, f BuilderContinuation) {
-	if b.err != nil {
-		return
-	}
-	// Identifiers with the low five bits set indicate high-tag-number format
-	// (two or more octets), which we don't support.
-	if tag&0x1f == 0x1f {
-		b.err = fmt.Errorf("cryptobyte: high-tag number identifier octects not supported: 0x%x", tag)
-		return
-	}
-	b.AddUint8(uint8(tag))
-	b.addLengthPrefixed(1, true, f)
-}
-
-// String
-
-// ReadASN1Boolean decodes an ASN.1 INTEGER and converts it to a boolean
-// representation into out and advances. It reports whether the read
-// was successful.
-func (s *String) ReadASN1Boolean(out *bool) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.INTEGER) || len(bytes) != 1 {
-		return false
-	}
-
-	switch bytes[0] {
-	case 0:
-		*out = false
-	case 0xff:
-		*out = true
-	default:
-		return false
-	}
-
-	return true
-}
-
-var bigIntType = reflect.TypeOf((*big.Int)(nil)).Elem()
-
-// ReadASN1Integer decodes an ASN.1 INTEGER into out and advances. If out does
-// not point to an integer or to a big.Int, it panics. It reports whether the
-// read was successful.
-func (s *String) ReadASN1Integer(out interface{}) bool {
-	if reflect.TypeOf(out).Kind() != reflect.Ptr {
-		panic("out is not a pointer")
-	}
-	switch reflect.ValueOf(out).Elem().Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		var i int64
-		if !s.readASN1Int64(&i) || reflect.ValueOf(out).Elem().OverflowInt(i) {
-			return false
-		}
-		reflect.ValueOf(out).Elem().SetInt(i)
-		return true
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		var u uint64
-		if !s.readASN1Uint64(&u) || reflect.ValueOf(out).Elem().OverflowUint(u) {
-			return false
-		}
-		reflect.ValueOf(out).Elem().SetUint(u)
-		return true
-	case reflect.Struct:
-		if reflect.TypeOf(out).Elem() == bigIntType {
-			return s.readASN1BigInt(out.(*big.Int))
-		}
-	}
-	panic("out does not point to an integer type")
-}
-
-func checkASN1Integer(bytes []byte) bool {
-	if len(bytes) == 0 {
-		// An INTEGER is encoded with at least one octet.
-		return false
-	}
-	if len(bytes) == 1 {
-		return true
-	}
-	if bytes[0] == 0 && bytes[1]&0x80 == 0 || bytes[0] == 0xff && bytes[1]&0x80 == 0x80 {
-		// Value is not minimally encoded.
-		return false
-	}
-	return true
-}
-
-var bigOne = big.NewInt(1)
-
-func (s *String) readASN1BigInt(out *big.Int) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) {
-		return false
-	}
-	if bytes[0]&0x80 == 0x80 {
-		// Negative number.
-		neg := make([]byte, len(bytes))
-		for i, b := range bytes {
-			neg[i] = ^b
-		}
-		out.SetBytes(neg)
-		out.Add(out, bigOne)
-		out.Neg(out)
-	} else {
-		out.SetBytes(bytes)
-	}
-	return true
-}
-
-func (s *String) readASN1Int64(out *int64) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) || !asn1Signed(out, bytes) {
-		return false
-	}
-	return true
-}
-
-func asn1Signed(out *int64, n []byte) bool {
-	length := len(n)
-	if length > 8 {
-		return false
-	}
-	for i := 0; i < length; i++ {
-		*out <<= 8
-		*out |= int64(n[i])
-	}
-	// Shift up and down in order to sign extend the result.
-	*out <<= 64 - uint8(length)*8
-	*out >>= 64 - uint8(length)*8
-	return true
-}
-
-func (s *String) readASN1Uint64(out *uint64) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.INTEGER) || !checkASN1Integer(bytes) || !asn1Unsigned(out, bytes) {
-		return false
-	}
-	return true
-}
-
-func asn1Unsigned(out *uint64, n []byte) bool {
-	length := len(n)
-	if length > 9 || length == 9 && n[0] != 0 {
-		// Too large for uint64.
-		return false
-	}
-	if n[0]&0x80 != 0 {
-		// Negative number.
-		return false
-	}
-	for i := 0; i < length; i++ {
-		*out <<= 8
-		*out |= uint64(n[i])
-	}
-	return true
-}
-
-// ReadASN1Int64WithTag decodes an ASN.1 INTEGER with the given tag into out
-// and advances. It reports whether the read was successful and resulted in a
-// value that can be represented in an int64.
-func (s *String) ReadASN1Int64WithTag(out *int64, tag asn1.Tag) bool {
-	var bytes String
-	return s.ReadASN1(&bytes, tag) && checkASN1Integer(bytes) && asn1Signed(out, bytes)
-}
-
-// ReadASN1Enum decodes an ASN.1 ENUMERATION into out and advances. It reports
-// whether the read was successful.
-func (s *String) ReadASN1Enum(out *int) bool {
-	var bytes String
-	var i int64
-	if !s.ReadASN1(&bytes, asn1.ENUM) || !checkASN1Integer(bytes) || !asn1Signed(&i, bytes) {
-		return false
-	}
-	if int64(int(i)) != i {
-		return false
-	}
-	*out = int(i)
-	return true
-}
-
-func (s *String) readBase128Int(out *int) bool {
-	ret := 0
-	for i := 0; len(*s) > 0; i++ {
-		if i == 4 {
-			return false
-		}
-		ret <<= 7
-		b := s.read(1)[0]
-		ret |= int(b & 0x7f)
-		if b&0x80 == 0 {
-			*out = ret
-			return true
-		}
-	}
-	return false // truncated
-}
-
-// ReadASN1ObjectIdentifier decodes an ASN.1 OBJECT IDENTIFIER into out and
-// advances. It reports whether the read was successful.
-func (s *String) ReadASN1ObjectIdentifier(out *encoding_asn1.ObjectIdentifier) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.OBJECT_IDENTIFIER) || len(bytes) == 0 {
-		return false
-	}
-
-	// In the worst case, we get two elements from the first byte (which is
-	// encoded differently) and then every varint is a single byte long.
-	components := make([]int, len(bytes)+1)
-
-	// The first varint is 40*value1 + value2:
-	// According to this packing, value1 can take the values 0, 1 and 2 only.
-	// When value1 = 0 or value1 = 1, then value2 is <= 39. When value1 = 2,
-	// then there are no restrictions on value2.
-	var v int
-	if !bytes.readBase128Int(&v) {
-		return false
-	}
-	if v < 80 {
-		components[0] = v / 40
-		components[1] = v % 40
-	} else {
-		components[0] = 2
-		components[1] = v - 80
-	}
-
-	i := 2
-	for ; len(bytes) > 0; i++ {
-		if !bytes.readBase128Int(&v) {
-			return false
-		}
-		components[i] = v
-	}
-	*out = components[:i]
-	return true
-}
-
-// ReadASN1GeneralizedTime decodes an ASN.1 GENERALIZEDTIME into out and
-// advances. It reports whether the read was successful.
-func (s *String) ReadASN1GeneralizedTime(out *time.Time) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.GeneralizedTime) {
-		return false
-	}
-	t := string(bytes)
-	res, err := time.Parse(generalizedTimeFormatStr, t)
-	if err != nil {
-		return false
-	}
-	if serialized := res.Format(generalizedTimeFormatStr); serialized != t {
-		return false
-	}
-	*out = res
-	return true
-}
-
-// ReadASN1BitString decodes an ASN.1 BIT STRING into out and advances.
-// It reports whether the read was successful.
-func (s *String) ReadASN1BitString(out *encoding_asn1.BitString) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.BIT_STRING) || len(bytes) == 0 {
-		return false
-	}
-
-	paddingBits := uint8(bytes[0])
-	bytes = bytes[1:]
-	if paddingBits > 7 ||
-		len(bytes) == 0 && paddingBits != 0 ||
-		len(bytes) > 0 && bytes[len(bytes)-1]&(1<<paddingBits-1) != 0 {
-		return false
-	}
-
-	out.BitLength = len(bytes)*8 - int(paddingBits)
-	out.Bytes = bytes
-	return true
-}
-
-// ReadASN1BitString decodes an ASN.1 BIT STRING into out and advances. It is
-// an error if the BIT STRING is not a whole number of bytes. It reports
-// whether the read was successful.
-func (s *String) ReadASN1BitStringAsBytes(out *[]byte) bool {
-	var bytes String
-	if !s.ReadASN1(&bytes, asn1.BIT_STRING) || len(bytes) == 0 {
-		return false
-	}
-
-	paddingBits := uint8(bytes[0])
-	if paddingBits != 0 {
-		return false
-	}
-	*out = bytes[1:]
-	return true
-}
-
-// ReadASN1Bytes reads the contents of a DER-encoded ASN.1 element (not including
-// tag and length bytes) into out, and advances. The element must match the
-// given tag. It reports whether the read was successful.
-func (s *String) ReadASN1Bytes(out *[]byte, tag asn1.Tag) bool {
-	return s.ReadASN1((*String)(out), tag)
-}
-
-// ReadASN1 reads the contents of a DER-encoded ASN.1 element (not including
-// tag and length bytes) into out, and advances. The element must match the
-// given tag. It reports whether the read was successful.
-//
-// Tags greater than 30 are not supported (i.e. low-tag-number format only).
-func (s *String) ReadASN1(out *String, tag asn1.Tag) bool {
-	var t asn1.Tag
-	if !s.ReadAnyASN1(out, &t) || t != tag {
-		return false
-	}
-	return true
-}
-
-// ReadASN1Element reads the contents of a DER-encoded ASN.1 element (including
-// tag and length bytes) into out, and advances. The element must match the
-// given tag. It reports whether the read was successful.
-//
-// Tags greater than 30 are not supported (i.e. low-tag-number format only).
-func (s *String) ReadASN1Element(out *String, tag asn1.Tag) bool {
-	var t asn1.Tag
-	if !s.ReadAnyASN1Element(out, &t) || t != tag {
-		return false
-	}
-	return true
-}
-
-// ReadAnyASN1 reads the contents of a DER-encoded ASN.1 element (not including
-// tag and length bytes) into out, sets outTag to its tag, and advances.
-// It reports whether the read was successful.
-//
-// Tags greater than 30 are not supported (i.e. low-tag-number format only).
-func (s *String) ReadAnyASN1(out *String, outTag *asn1.Tag) bool {
-	return s.readASN1(out, outTag, true /* skip header */)
-}
-
-// ReadAnyASN1Element reads the contents of a DER-encoded ASN.1 element
-// (including tag and length bytes) into out, sets outTag to is tag, and
-// advances. It reports whether the read was successful.
-//
-// Tags greater than 30 are not supported (i.e. low-tag-number format only).
-func (s *String) ReadAnyASN1Element(out *String, outTag *asn1.Tag) bool {
-	return s.readASN1(out, outTag, false /* include header */)
-}
-
-// PeekASN1Tag reports whether the next ASN.1 value on the string starts with
-// the given tag.
-func (s String) PeekASN1Tag(tag asn1.Tag) bool {
-	if len(s) == 0 {
-		return false
-	}
-	return asn1.Tag(s[0]) == tag
-}
-
-// SkipASN1 reads and discards an ASN.1 element with the given tag. It
-// reports whether the operation was successful.
-func (s *String) SkipASN1(tag asn1.Tag) bool {
-	var unused String
-	return s.ReadASN1(&unused, tag)
-}
-
-// ReadOptionalASN1 attempts to read the contents of a DER-encoded ASN.1
-// element (not including tag and length bytes) tagged with the given tag into
-// out. It stores whether an element with the tag was found in outPresent,
-// unless outPresent is nil. It reports whether the read was successful.
-func (s *String) ReadOptionalASN1(out *String, outPresent *bool, tag asn1.Tag) bool {
-	present := s.PeekASN1Tag(tag)
-	if outPresent != nil {
-		*outPresent = present
-	}
-	if present && !s.ReadASN1(out, tag) {
-		return false
-	}
-	return true
-}
-
-// SkipOptionalASN1 advances s over an ASN.1 element with the given tag, or
-// else leaves s unchanged. It reports whether the operation was successful.
-func (s *String) SkipOptionalASN1(tag asn1.Tag) bool {
-	if !s.PeekASN1Tag(tag) {
-		return true
-	}
-	var unused String
-	return s.ReadASN1(&unused, tag)
-}
-
-// ReadOptionalASN1Integer attempts to read an optional ASN.1 INTEGER
-// explicitly tagged with tag into out and advances. If no element with a
-// matching tag is present, it writes defaultValue into out instead. If out
-// does not point to an integer or to a big.Int, it panics. It reports
-// whether the read was successful.
-func (s *String) ReadOptionalASN1Integer(out interface{}, tag asn1.Tag, defaultValue interface{}) bool {
-	if reflect.TypeOf(out).Kind() != reflect.Ptr {
-		panic("out is not a pointer")
-	}
-	var present bool
-	var i String
-	if !s.ReadOptionalASN1(&i, &present, tag) {
-		return false
-	}
-	if !present {
-		switch reflect.ValueOf(out).Elem().Kind() {
-		case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
-			reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-			reflect.ValueOf(out).Elem().Set(reflect.ValueOf(defaultValue))
-		case reflect.Struct:
-			if reflect.TypeOf(out).Elem() != bigIntType {
-				panic("invalid integer type")
-			}
-			if reflect.TypeOf(defaultValue).Kind() != reflect.Ptr ||
-				reflect.TypeOf(defaultValue).Elem() != bigIntType {
-				panic("out points to big.Int, but defaultValue does not")
-			}
-			out.(*big.Int).Set(defaultValue.(*big.Int))
-		default:
-			panic("invalid integer type")
-		}
-		return true
-	}
-	if !i.ReadASN1Integer(out) || !i.Empty() {
-		return false
-	}
-	return true
-}
-
-// ReadOptionalASN1OctetString attempts to read an optional ASN.1 OCTET STRING
-// explicitly tagged with tag into out and advances. If no element with a
-// matching tag is present, it sets "out" to nil instead. It reports
-// whether the read was successful.
-func (s *String) ReadOptionalASN1OctetString(out *[]byte, outPresent *bool, tag asn1.Tag) bool {
-	var present bool
-	var child String
-	if !s.ReadOptionalASN1(&child, &present, tag) {
-		return false
-	}
-	if outPresent != nil {
-		*outPresent = present
-	}
-	if present {
-		var oct String
-		if !child.ReadASN1(&oct, asn1.OCTET_STRING) || !child.Empty() {
-			return false
-		}
-		*out = oct
-	} else {
-		*out = nil
-	}
-	return true
-}
-
-// ReadOptionalASN1Boolean sets *out to the value of the next ASN.1 BOOLEAN or,
-// if the next bytes are not an ASN.1 BOOLEAN, to the value of defaultValue.
-// It reports whether the operation was successful.
-func (s *String) ReadOptionalASN1Boolean(out *bool, defaultValue bool) bool {
-	var present bool
-	var child String
-	if !s.ReadOptionalASN1(&child, &present, asn1.BOOLEAN) {
-		return false
-	}
-
-	if !present {
-		*out = defaultValue
-		return true
-	}
-
-	return s.ReadASN1Boolean(out)
-}
-
-func (s *String) readASN1(out *String, outTag *asn1.Tag, skipHeader bool) bool {
-	if len(*s) < 2 {
-		return false
-	}
-	tag, lenByte := (*s)[0], (*s)[1]
-
-	if tag&0x1f == 0x1f {
-		// ITU-T X.690 section 8.1.2
-		//
-		// An identifier octet with a tag part of 0x1f indicates a high-tag-number
-		// form identifier with two or more octets. We only support tags less than
-		// 31 (i.e. low-tag-number form, single octet identifier).
-		return false
-	}
-
-	if outTag != nil {
-		*outTag = asn1.Tag(tag)
-	}
-
-	// ITU-T X.690 section 8.1.3
-	//
-	// Bit 8 of the first length byte indicates whether the length is short- or
-	// long-form.
-	var length, headerLen uint32 // length includes headerLen
-	if lenByte&0x80 == 0 {
-		// Short-form length (section 8.1.3.4), encoded in bits 1-7.
-		length = uint32(lenByte) + 2
-		headerLen = 2
-	} else {
-		// Long-form length (section 8.1.3.5). Bits 1-7 encode the number of octets
-		// used to encode the length.
-		lenLen := lenByte & 0x7f
-		var len32 uint32
-
-		if lenLen == 0 || lenLen > 4 || len(*s) < int(2+lenLen) {
-			return false
-		}
-
-		lenBytes := String((*s)[2 : 2+lenLen])
-		if !lenBytes.readUnsigned(&len32, int(lenLen)) {
-			return false
-		}
-
-		// ITU-T X.690 section 10.1 (DER length forms) requires encoding the length
-		// with the minimum number of octets.
-		if len32 < 128 {
-			// Length should have used short-form encoding.
-			return false
-		}
-		if len32>>((lenLen-1)*8) == 0 {
-			// Leading octet is 0. Length should have been at least one byte shorter.
-			return false
-		}
-
-		headerLen = 2 + uint32(lenLen)
-		if headerLen+len32 < len32 {
-			// Overflow.
-			return false
-		}
-		length = headerLen + len32
-	}
-
-	if uint32(int(length)) != length || !s.ReadBytes((*[]byte)(out), int(length)) {
-		return false
-	}
-	if skipHeader && !out.Skip(int(headerLen)) {
-		panic("cryptobyte: internal error")
-	}
-
-	return true
-}
diff --git a/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go b/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go
deleted file mode 100644
index cda8e3e..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/asn1/asn1.go
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package asn1 contains supporting types for parsing and building ASN.1
-// messages with the cryptobyte package.
-package asn1 // import "golang.org/x/crypto/cryptobyte/asn1"
-
-// Tag represents an ASN.1 identifier octet, consisting of a tag number
-// (indicating a type) and class (such as context-specific or constructed).
-//
-// Methods in the cryptobyte package only support the low-tag-number form, i.e.
-// a single identifier octet with bits 7-8 encoding the class and bits 1-6
-// encoding the tag number.
-type Tag uint8
-
-const (
-	classConstructed     = 0x20
-	classContextSpecific = 0x80
-)
-
-// Constructed returns t with the constructed class bit set.
-func (t Tag) Constructed() Tag { return t | classConstructed }
-
-// ContextSpecific returns t with the context-specific class bit set.
-func (t Tag) ContextSpecific() Tag { return t | classContextSpecific }
-
-// The following is a list of standard tag and class combinations.
-const (
-	BOOLEAN           = Tag(1)
-	INTEGER           = Tag(2)
-	BIT_STRING        = Tag(3)
-	OCTET_STRING      = Tag(4)
-	NULL              = Tag(5)
-	OBJECT_IDENTIFIER = Tag(6)
-	ENUM              = Tag(10)
-	UTF8String        = Tag(12)
-	SEQUENCE          = Tag(16 | classConstructed)
-	SET               = Tag(17 | classConstructed)
-	PrintableString   = Tag(19)
-	T61String         = Tag(20)
-	IA5String         = Tag(22)
-	UTCTime           = Tag(23)
-	GeneralizedTime   = Tag(24)
-	GeneralString     = Tag(27)
-)
diff --git a/vendor/golang.org/x/crypto/cryptobyte/asn1_test.go b/vendor/golang.org/x/crypto/cryptobyte/asn1_test.go
deleted file mode 100644
index 9f6c952..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/asn1_test.go
+++ /dev/null
@@ -1,333 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cryptobyte
-
-import (
-	"bytes"
-	encoding_asn1 "encoding/asn1"
-	"math/big"
-	"reflect"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/cryptobyte/asn1"
-)
-
-type readASN1Test struct {
-	name string
-	in   []byte
-	tag  asn1.Tag
-	ok   bool
-	out  interface{}
-}
-
-var readASN1TestData = []readASN1Test{
-	{"valid", []byte{0x30, 2, 1, 2}, 0x30, true, []byte{1, 2}},
-	{"truncated", []byte{0x30, 3, 1, 2}, 0x30, false, nil},
-	{"zero length of length", []byte{0x30, 0x80}, 0x30, false, nil},
-	{"invalid long form length", []byte{0x30, 0x81, 1, 1}, 0x30, false, nil},
-	{"non-minimal length", append([]byte{0x30, 0x82, 0, 0x80}, make([]byte, 0x80)...), 0x30, false, nil},
-	{"invalid tag", []byte{0xa1, 3, 0x4, 1, 1}, 31, false, nil},
-	{"high tag", []byte{0x1f, 0x81, 0x80, 0x01, 2, 1, 2}, 0xff /* actually 0x4001, but tag is uint8 */, false, nil},
-}
-
-func TestReadASN1(t *testing.T) {
-	for _, test := range readASN1TestData {
-		t.Run(test.name, func(t *testing.T) {
-			var in, out String = test.in, nil
-			ok := in.ReadASN1(&out, test.tag)
-			if ok != test.ok || ok && !bytes.Equal(out, test.out.([]byte)) {
-				t.Errorf("in.ReadASN1() = %v, want %v; out = %v, want %v", ok, test.ok, out, test.out)
-			}
-		})
-	}
-}
-
-func TestReadASN1Optional(t *testing.T) {
-	var empty String
-	var present bool
-	ok := empty.ReadOptionalASN1(nil, &present, 0xa0)
-	if !ok || present {
-		t.Errorf("empty.ReadOptionalASN1() = %v, want true; present = %v want false", ok, present)
-	}
-
-	var in, out String = []byte{0xa1, 3, 0x4, 1, 1}, nil
-	ok = in.ReadOptionalASN1(&out, &present, 0xa0)
-	if !ok || present {
-		t.Errorf("in.ReadOptionalASN1() = %v, want true, present = %v, want false", ok, present)
-	}
-	ok = in.ReadOptionalASN1(&out, &present, 0xa1)
-	wantBytes := []byte{4, 1, 1}
-	if !ok || !present || !bytes.Equal(out, wantBytes) {
-		t.Errorf("in.ReadOptionalASN1() = %v, want true; present = %v, want true; out = %v, want = %v", ok, present, out, wantBytes)
-	}
-}
-
-var optionalOctetStringTestData = []struct {
-	readASN1Test
-	present bool
-}{
-	{readASN1Test{"empty", []byte{}, 0xa0, true, []byte{}}, false},
-	{readASN1Test{"invalid", []byte{0xa1, 3, 0x4, 2, 1}, 0xa1, false, []byte{}}, true},
-	{readASN1Test{"missing", []byte{0xa1, 3, 0x4, 1, 1}, 0xa0, true, []byte{}}, false},
-	{readASN1Test{"present", []byte{0xa1, 3, 0x4, 1, 1}, 0xa1, true, []byte{1}}, true},
-}
-
-func TestReadASN1OptionalOctetString(t *testing.T) {
-	for _, test := range optionalOctetStringTestData {
-		t.Run(test.name, func(t *testing.T) {
-			in := String(test.in)
-			var out []byte
-			var present bool
-			ok := in.ReadOptionalASN1OctetString(&out, &present, test.tag)
-			if ok != test.ok || present != test.present || !bytes.Equal(out, test.out.([]byte)) {
-				t.Errorf("in.ReadOptionalASN1OctetString() = %v, want %v; present = %v want %v; out = %v, want %v", ok, test.ok, present, test.present, out, test.out)
-			}
-		})
-	}
-}
-
-const defaultInt = -1
-
-var optionalIntTestData = []readASN1Test{
-	{"empty", []byte{}, 0xa0, true, defaultInt},
-	{"invalid", []byte{0xa1, 3, 0x2, 2, 127}, 0xa1, false, 0},
-	{"missing", []byte{0xa1, 3, 0x2, 1, 127}, 0xa0, true, defaultInt},
-	{"present", []byte{0xa1, 3, 0x2, 1, 42}, 0xa1, true, 42},
-}
-
-func TestReadASN1OptionalInteger(t *testing.T) {
-	for _, test := range optionalIntTestData {
-		t.Run(test.name, func(t *testing.T) {
-			in := String(test.in)
-			var out int
-			ok := in.ReadOptionalASN1Integer(&out, test.tag, defaultInt)
-			if ok != test.ok || ok && out != test.out.(int) {
-				t.Errorf("in.ReadOptionalASN1Integer() = %v, want %v; out = %v, want %v", ok, test.ok, out, test.out)
-			}
-		})
-	}
-}
-
-func TestReadASN1IntegerSigned(t *testing.T) {
-	testData64 := []struct {
-		in  []byte
-		out int64
-	}{
-		{[]byte{2, 3, 128, 0, 0}, -0x800000},
-		{[]byte{2, 2, 255, 0}, -256},
-		{[]byte{2, 2, 255, 127}, -129},
-		{[]byte{2, 1, 128}, -128},
-		{[]byte{2, 1, 255}, -1},
-		{[]byte{2, 1, 0}, 0},
-		{[]byte{2, 1, 1}, 1},
-		{[]byte{2, 1, 2}, 2},
-		{[]byte{2, 1, 127}, 127},
-		{[]byte{2, 2, 0, 128}, 128},
-		{[]byte{2, 2, 1, 0}, 256},
-		{[]byte{2, 4, 0, 128, 0, 0}, 0x800000},
-	}
-	for i, test := range testData64 {
-		in := String(test.in)
-		var out int64
-		ok := in.ReadASN1Integer(&out)
-		if !ok || out != test.out {
-			t.Errorf("#%d: in.ReadASN1Integer() = %v, want true; out = %d, want %d", i, ok, out, test.out)
-		}
-	}
-
-	// Repeat the same cases, reading into a big.Int.
-	t.Run("big.Int", func(t *testing.T) {
-		for i, test := range testData64 {
-			in := String(test.in)
-			var out big.Int
-			ok := in.ReadASN1Integer(&out)
-			if !ok || out.Int64() != test.out {
-				t.Errorf("#%d: in.ReadASN1Integer() = %v, want true; out = %d, want %d", i, ok, out.Int64(), test.out)
-			}
-		}
-	})
-
-	// Repeat with the implicit-tagging functions
-	t.Run("WithTag", func(t *testing.T) {
-		for i, test := range testData64 {
-			tag := asn1.Tag((i * 3) % 32).ContextSpecific()
-
-			testData := make([]byte, len(test.in))
-			copy(testData, test.in)
-
-			// Alter the tag of the test case.
-			testData[0] = uint8(tag)
-
-			in := String(testData)
-			var out int64
-			ok := in.ReadASN1Int64WithTag(&out, tag)
-			if !ok || out != test.out {
-				t.Errorf("#%d: in.ReadASN1Int64WithTag() = %v, want true; out = %d, want %d", i, ok, out, test.out)
-			}
-
-			var b Builder
-			b.AddASN1Int64WithTag(test.out, tag)
-			result, err := b.Bytes()
-
-			if err != nil {
-				t.Errorf("#%d: AddASN1Int64WithTag failed: %s", i, err)
-				continue
-			}
-
-			if !bytes.Equal(result, testData) {
-				t.Errorf("#%d: AddASN1Int64WithTag: got %x, want %x", i, result, testData)
-			}
-		}
-	})
-}
-
-func TestReadASN1IntegerUnsigned(t *testing.T) {
-	testData := []struct {
-		in  []byte
-		out uint64
-	}{
-		{[]byte{2, 1, 0}, 0},
-		{[]byte{2, 1, 1}, 1},
-		{[]byte{2, 1, 2}, 2},
-		{[]byte{2, 1, 127}, 127},
-		{[]byte{2, 2, 0, 128}, 128},
-		{[]byte{2, 2, 1, 0}, 256},
-		{[]byte{2, 4, 0, 128, 0, 0}, 0x800000},
-		{[]byte{2, 8, 127, 255, 255, 255, 255, 255, 255, 255}, 0x7fffffffffffffff},
-		{[]byte{2, 9, 0, 128, 0, 0, 0, 0, 0, 0, 0}, 0x8000000000000000},
-		{[]byte{2, 9, 0, 255, 255, 255, 255, 255, 255, 255, 255}, 0xffffffffffffffff},
-	}
-	for i, test := range testData {
-		in := String(test.in)
-		var out uint64
-		ok := in.ReadASN1Integer(&out)
-		if !ok || out != test.out {
-			t.Errorf("#%d: in.ReadASN1Integer() = %v, want true; out = %d, want %d", i, ok, out, test.out)
-		}
-	}
-}
-
-func TestReadASN1IntegerInvalid(t *testing.T) {
-	testData := []String{
-		[]byte{3, 1, 0}, // invalid tag
-		// truncated
-		[]byte{2, 1},
-		[]byte{2, 2, 0},
-		// not minimally encoded
-		[]byte{2, 2, 0, 1},
-		[]byte{2, 2, 0xff, 0xff},
-	}
-
-	for i, test := range testData {
-		var out int64
-		if test.ReadASN1Integer(&out) {
-			t.Errorf("#%d: in.ReadASN1Integer() = true, want false (out = %d)", i, out)
-		}
-	}
-}
-
-func TestASN1ObjectIdentifier(t *testing.T) {
-	testData := []struct {
-		in  []byte
-		ok  bool
-		out []int
-	}{
-		{[]byte{}, false, []int{}},
-		{[]byte{6, 0}, false, []int{}},
-		{[]byte{5, 1, 85}, false, []int{2, 5}},
-		{[]byte{6, 1, 85}, true, []int{2, 5}},
-		{[]byte{6, 2, 85, 0x02}, true, []int{2, 5, 2}},
-		{[]byte{6, 4, 85, 0x02, 0xc0, 0x00}, true, []int{2, 5, 2, 0x2000}},
-		{[]byte{6, 3, 0x81, 0x34, 0x03}, true, []int{2, 100, 3}},
-		{[]byte{6, 7, 85, 0x02, 0xc0, 0x80, 0x80, 0x80, 0x80}, false, []int{}},
-	}
-
-	for i, test := range testData {
-		in := String(test.in)
-		var out encoding_asn1.ObjectIdentifier
-		ok := in.ReadASN1ObjectIdentifier(&out)
-		if ok != test.ok || ok && !out.Equal(test.out) {
-			t.Errorf("#%d: in.ReadASN1ObjectIdentifier() = %v, want %v; out = %v, want %v", i, ok, test.ok, out, test.out)
-			continue
-		}
-
-		var b Builder
-		b.AddASN1ObjectIdentifier(out)
-		result, err := b.Bytes()
-		if builderOk := err == nil; test.ok != builderOk {
-			t.Errorf("#%d: error from Builder.Bytes: %s", i, err)
-			continue
-		}
-		if test.ok && !bytes.Equal(result, test.in) {
-			t.Errorf("#%d: reserialisation didn't match, got %x, want %x", i, result, test.in)
-			continue
-		}
-	}
-}
-
-func TestReadASN1GeneralizedTime(t *testing.T) {
-	testData := []struct {
-		in  string
-		ok  bool
-		out time.Time
-	}{
-		{"20100102030405Z", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.UTC)},
-		{"20100102030405", false, time.Time{}},
-		{"20100102030405+0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", 6*60*60+7*60))},
-		{"20100102030405-0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", -6*60*60-7*60))},
-		/* These are invalid times. However, the time package normalises times
-		 * and they were accepted in some versions. See #11134. */
-		{"00000100000000Z", false, time.Time{}},
-		{"20101302030405Z", false, time.Time{}},
-		{"20100002030405Z", false, time.Time{}},
-		{"20100100030405Z", false, time.Time{}},
-		{"20100132030405Z", false, time.Time{}},
-		{"20100231030405Z", false, time.Time{}},
-		{"20100102240405Z", false, time.Time{}},
-		{"20100102036005Z", false, time.Time{}},
-		{"20100102030460Z", false, time.Time{}},
-		{"-20100102030410Z", false, time.Time{}},
-		{"2010-0102030410Z", false, time.Time{}},
-		{"2010-0002030410Z", false, time.Time{}},
-		{"201001-02030410Z", false, time.Time{}},
-		{"20100102-030410Z", false, time.Time{}},
-		{"2010010203-0410Z", false, time.Time{}},
-		{"201001020304-10Z", false, time.Time{}},
-	}
-	for i, test := range testData {
-		in := String(append([]byte{byte(asn1.GeneralizedTime), byte(len(test.in))}, test.in...))
-		var out time.Time
-		ok := in.ReadASN1GeneralizedTime(&out)
-		if ok != test.ok || ok && !reflect.DeepEqual(out, test.out) {
-			t.Errorf("#%d: in.ReadASN1GeneralizedTime() = %v, want %v; out = %q, want %q", i, ok, test.ok, out, test.out)
-		}
-	}
-}
-
-func TestReadASN1BitString(t *testing.T) {
-	testData := []struct {
-		in  []byte
-		ok  bool
-		out encoding_asn1.BitString
-	}{
-		{[]byte{}, false, encoding_asn1.BitString{}},
-		{[]byte{0x00}, true, encoding_asn1.BitString{}},
-		{[]byte{0x07, 0x00}, true, encoding_asn1.BitString{Bytes: []byte{0}, BitLength: 1}},
-		{[]byte{0x07, 0x01}, false, encoding_asn1.BitString{}},
-		{[]byte{0x07, 0x40}, false, encoding_asn1.BitString{}},
-		{[]byte{0x08, 0x00}, false, encoding_asn1.BitString{}},
-		{[]byte{0xff}, false, encoding_asn1.BitString{}},
-		{[]byte{0xfe, 0x00}, false, encoding_asn1.BitString{}},
-	}
-	for i, test := range testData {
-		in := String(append([]byte{3, byte(len(test.in))}, test.in...))
-		var out encoding_asn1.BitString
-		ok := in.ReadASN1BitString(&out)
-		if ok != test.ok || ok && (!bytes.Equal(out.Bytes, test.out.Bytes) || out.BitLength != test.out.BitLength) {
-			t.Errorf("#%d: in.ReadASN1BitString() = %v, want %v; out = %v, want %v", i, ok, test.ok, out, test.out)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/cryptobyte/builder.go b/vendor/golang.org/x/crypto/cryptobyte/builder.go
deleted file mode 100644
index 29b4c76..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/builder.go
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cryptobyte
-
-import (
-	"errors"
-	"fmt"
-)
-
-// A Builder builds byte strings from fixed-length and length-prefixed values.
-// Builders either allocate space as needed, or are ‘fixed’, which means that
-// they write into a given buffer and produce an error if it's exhausted.
-//
-// The zero value is a usable Builder that allocates space as needed.
-//
-// Simple values are marshaled and appended to a Builder using methods on the
-// Builder. Length-prefixed values are marshaled by providing a
-// BuilderContinuation, which is a function that writes the inner contents of
-// the value to a given Builder. See the documentation for BuilderContinuation
-// for details.
-type Builder struct {
-	err            error
-	result         []byte
-	fixedSize      bool
-	child          *Builder
-	offset         int
-	pendingLenLen  int
-	pendingIsASN1  bool
-	inContinuation *bool
-}
-
-// NewBuilder creates a Builder that appends its output to the given buffer.
-// Like append(), the slice will be reallocated if its capacity is exceeded.
-// Use Bytes to get the final buffer.
-func NewBuilder(buffer []byte) *Builder {
-	return &Builder{
-		result: buffer,
-	}
-}
-
-// NewFixedBuilder creates a Builder that appends its output into the given
-// buffer. This builder does not reallocate the output buffer. Writes that
-// would exceed the buffer's capacity are treated as an error.
-func NewFixedBuilder(buffer []byte) *Builder {
-	return &Builder{
-		result:    buffer,
-		fixedSize: true,
-	}
-}
-
-// Bytes returns the bytes written by the builder or an error if one has
-// occurred during during building.
-func (b *Builder) Bytes() ([]byte, error) {
-	if b.err != nil {
-		return nil, b.err
-	}
-	return b.result[b.offset:], nil
-}
-
-// BytesOrPanic returns the bytes written by the builder or panics if an error
-// has occurred during building.
-func (b *Builder) BytesOrPanic() []byte {
-	if b.err != nil {
-		panic(b.err)
-	}
-	return b.result[b.offset:]
-}
-
-// AddUint8 appends an 8-bit value to the byte string.
-func (b *Builder) AddUint8(v uint8) {
-	b.add(byte(v))
-}
-
-// AddUint16 appends a big-endian, 16-bit value to the byte string.
-func (b *Builder) AddUint16(v uint16) {
-	b.add(byte(v>>8), byte(v))
-}
-
-// AddUint24 appends a big-endian, 24-bit value to the byte string. The highest
-// byte of the 32-bit input value is silently truncated.
-func (b *Builder) AddUint24(v uint32) {
-	b.add(byte(v>>16), byte(v>>8), byte(v))
-}
-
-// AddUint32 appends a big-endian, 32-bit value to the byte string.
-func (b *Builder) AddUint32(v uint32) {
-	b.add(byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
-}
-
-// AddBytes appends a sequence of bytes to the byte string.
-func (b *Builder) AddBytes(v []byte) {
-	b.add(v...)
-}
-
-// BuilderContinuation is continuation-passing interface for building
-// length-prefixed byte sequences. Builder methods for length-prefixed
-// sequences (AddUint8LengthPrefixed etc) will invoke the BuilderContinuation
-// supplied to them. The child builder passed to the continuation can be used
-// to build the content of the length-prefixed sequence. For example:
-//
-//   parent := cryptobyte.NewBuilder()
-//   parent.AddUint8LengthPrefixed(func (child *Builder) {
-//     child.AddUint8(42)
-//     child.AddUint8LengthPrefixed(func (grandchild *Builder) {
-//       grandchild.AddUint8(5)
-//     })
-//   })
-//
-// It is an error to write more bytes to the child than allowed by the reserved
-// length prefix. After the continuation returns, the child must be considered
-// invalid, i.e. users must not store any copies or references of the child
-// that outlive the continuation.
-//
-// If the continuation panics with a value of type BuildError then the inner
-// error will be returned as the error from Bytes. If the child panics
-// otherwise then Bytes will repanic with the same value.
-type BuilderContinuation func(child *Builder)
-
-// BuildError wraps an error. If a BuilderContinuation panics with this value,
-// the panic will be recovered and the inner error will be returned from
-// Builder.Bytes.
-type BuildError struct {
-	Err error
-}
-
-// AddUint8LengthPrefixed adds a 8-bit length-prefixed byte sequence.
-func (b *Builder) AddUint8LengthPrefixed(f BuilderContinuation) {
-	b.addLengthPrefixed(1, false, f)
-}
-
-// AddUint16LengthPrefixed adds a big-endian, 16-bit length-prefixed byte sequence.
-func (b *Builder) AddUint16LengthPrefixed(f BuilderContinuation) {
-	b.addLengthPrefixed(2, false, f)
-}
-
-// AddUint24LengthPrefixed adds a big-endian, 24-bit length-prefixed byte sequence.
-func (b *Builder) AddUint24LengthPrefixed(f BuilderContinuation) {
-	b.addLengthPrefixed(3, false, f)
-}
-
-// AddUint32LengthPrefixed adds a big-endian, 32-bit length-prefixed byte sequence.
-func (b *Builder) AddUint32LengthPrefixed(f BuilderContinuation) {
-	b.addLengthPrefixed(4, false, f)
-}
-
-func (b *Builder) callContinuation(f BuilderContinuation, arg *Builder) {
-	if !*b.inContinuation {
-		*b.inContinuation = true
-
-		defer func() {
-			*b.inContinuation = false
-
-			r := recover()
-			if r == nil {
-				return
-			}
-
-			if buildError, ok := r.(BuildError); ok {
-				b.err = buildError.Err
-			} else {
-				panic(r)
-			}
-		}()
-	}
-
-	f(arg)
-}
-
-func (b *Builder) addLengthPrefixed(lenLen int, isASN1 bool, f BuilderContinuation) {
-	// Subsequent writes can be ignored if the builder has encountered an error.
-	if b.err != nil {
-		return
-	}
-
-	offset := len(b.result)
-	b.add(make([]byte, lenLen)...)
-
-	if b.inContinuation == nil {
-		b.inContinuation = new(bool)
-	}
-
-	b.child = &Builder{
-		result:         b.result,
-		fixedSize:      b.fixedSize,
-		offset:         offset,
-		pendingLenLen:  lenLen,
-		pendingIsASN1:  isASN1,
-		inContinuation: b.inContinuation,
-	}
-
-	b.callContinuation(f, b.child)
-	b.flushChild()
-	if b.child != nil {
-		panic("cryptobyte: internal error")
-	}
-}
-
-func (b *Builder) flushChild() {
-	if b.child == nil {
-		return
-	}
-	b.child.flushChild()
-	child := b.child
-	b.child = nil
-
-	if child.err != nil {
-		b.err = child.err
-		return
-	}
-
-	length := len(child.result) - child.pendingLenLen - child.offset
-
-	if length < 0 {
-		panic("cryptobyte: internal error") // result unexpectedly shrunk
-	}
-
-	if child.pendingIsASN1 {
-		// For ASN.1, we reserved a single byte for the length. If that turned out
-		// to be incorrect, we have to move the contents along in order to make
-		// space.
-		if child.pendingLenLen != 1 {
-			panic("cryptobyte: internal error")
-		}
-		var lenLen, lenByte uint8
-		if int64(length) > 0xfffffffe {
-			b.err = errors.New("pending ASN.1 child too long")
-			return
-		} else if length > 0xffffff {
-			lenLen = 5
-			lenByte = 0x80 | 4
-		} else if length > 0xffff {
-			lenLen = 4
-			lenByte = 0x80 | 3
-		} else if length > 0xff {
-			lenLen = 3
-			lenByte = 0x80 | 2
-		} else if length > 0x7f {
-			lenLen = 2
-			lenByte = 0x80 | 1
-		} else {
-			lenLen = 1
-			lenByte = uint8(length)
-			length = 0
-		}
-
-		// Insert the initial length byte, make space for successive length bytes,
-		// and adjust the offset.
-		child.result[child.offset] = lenByte
-		extraBytes := int(lenLen - 1)
-		if extraBytes != 0 {
-			child.add(make([]byte, extraBytes)...)
-			childStart := child.offset + child.pendingLenLen
-			copy(child.result[childStart+extraBytes:], child.result[childStart:])
-		}
-		child.offset++
-		child.pendingLenLen = extraBytes
-	}
-
-	l := length
-	for i := child.pendingLenLen - 1; i >= 0; i-- {
-		child.result[child.offset+i] = uint8(l)
-		l >>= 8
-	}
-	if l != 0 {
-		b.err = fmt.Errorf("cryptobyte: pending child length %d exceeds %d-byte length prefix", length, child.pendingLenLen)
-		return
-	}
-
-	if !b.fixedSize {
-		b.result = child.result // In case child reallocated result.
-	}
-}
-
-func (b *Builder) add(bytes ...byte) {
-	if b.err != nil {
-		return
-	}
-	if b.child != nil {
-		panic("attempted write while child is pending")
-	}
-	if len(b.result)+len(bytes) < len(bytes) {
-		b.err = errors.New("cryptobyte: length overflow")
-	}
-	if b.fixedSize && len(b.result)+len(bytes) > cap(b.result) {
-		b.err = errors.New("cryptobyte: Builder is exceeding its fixed-size buffer")
-		return
-	}
-	b.result = append(b.result, bytes...)
-}
-
-// A MarshalingValue marshals itself into a Builder.
-type MarshalingValue interface {
-	// Marshal is called by Builder.AddValue. It receives a pointer to a builder
-	// to marshal itself into. It may return an error that occurred during
-	// marshaling, such as unset or invalid values.
-	Marshal(b *Builder) error
-}
-
-// AddValue calls Marshal on v, passing a pointer to the builder to append to.
-// If Marshal returns an error, it is set on the Builder so that subsequent
-// appends don't have an effect.
-func (b *Builder) AddValue(v MarshalingValue) {
-	err := v.Marshal(b)
-	if err != nil {
-		b.err = err
-	}
-}
diff --git a/vendor/golang.org/x/crypto/cryptobyte/cryptobyte_test.go b/vendor/golang.org/x/crypto/cryptobyte/cryptobyte_test.go
deleted file mode 100644
index f294dd5..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/cryptobyte_test.go
+++ /dev/null
@@ -1,428 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cryptobyte
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"testing"
-)
-
-func builderBytesEq(b *Builder, want ...byte) error {
-	got := b.BytesOrPanic()
-	if !bytes.Equal(got, want) {
-		return fmt.Errorf("Bytes() = %v, want %v", got, want)
-	}
-	return nil
-}
-
-func TestContinuationError(t *testing.T) {
-	const errorStr = "TestContinuationError"
-	var b Builder
-	b.AddUint8LengthPrefixed(func(b *Builder) {
-		b.AddUint8(1)
-		panic(BuildError{Err: errors.New(errorStr)})
-	})
-
-	ret, err := b.Bytes()
-	if ret != nil {
-		t.Error("expected nil result")
-	}
-	if err == nil {
-		t.Fatal("unexpected nil error")
-	}
-	if s := err.Error(); s != errorStr {
-		t.Errorf("expected error %q, got %v", errorStr, s)
-	}
-}
-
-func TestContinuationNonError(t *testing.T) {
-	defer func() {
-		recover()
-	}()
-
-	var b Builder
-	b.AddUint8LengthPrefixed(func(b *Builder) {
-		b.AddUint8(1)
-		panic(1)
-	})
-
-	t.Error("Builder did not panic")
-}
-
-func TestGeneratedPanic(t *testing.T) {
-	defer func() {
-		recover()
-	}()
-
-	var b Builder
-	b.AddUint8LengthPrefixed(func(b *Builder) {
-		var p *byte
-		*p = 0
-	})
-
-	t.Error("Builder did not panic")
-}
-
-func TestBytes(t *testing.T) {
-	var b Builder
-	v := []byte("foobarbaz")
-	b.AddBytes(v[0:3])
-	b.AddBytes(v[3:4])
-	b.AddBytes(v[4:9])
-	if err := builderBytesEq(&b, v...); err != nil {
-		t.Error(err)
-	}
-	s := String(b.BytesOrPanic())
-	for _, w := range []string{"foo", "bar", "baz"} {
-		var got []byte
-		if !s.ReadBytes(&got, 3) {
-			t.Errorf("ReadBytes() = false, want true (w = %v)", w)
-		}
-		want := []byte(w)
-		if !bytes.Equal(got, want) {
-			t.Errorf("ReadBytes(): got = %v, want %v", got, want)
-		}
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUint8(t *testing.T) {
-	var b Builder
-	b.AddUint8(42)
-	if err := builderBytesEq(&b, 42); err != nil {
-		t.Error(err)
-	}
-
-	var s String = b.BytesOrPanic()
-	var v uint8
-	if !s.ReadUint8(&v) {
-		t.Error("ReadUint8() = false, want true")
-	}
-	if v != 42 {
-		t.Errorf("v = %d, want 42", v)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUint16(t *testing.T) {
-	var b Builder
-	b.AddUint16(65534)
-	if err := builderBytesEq(&b, 255, 254); err != nil {
-		t.Error(err)
-	}
-	var s String = b.BytesOrPanic()
-	var v uint16
-	if !s.ReadUint16(&v) {
-		t.Error("ReadUint16() == false, want true")
-	}
-	if v != 65534 {
-		t.Errorf("v = %d, want 65534", v)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUint24(t *testing.T) {
-	var b Builder
-	b.AddUint24(0xfffefd)
-	if err := builderBytesEq(&b, 255, 254, 253); err != nil {
-		t.Error(err)
-	}
-
-	var s String = b.BytesOrPanic()
-	var v uint32
-	if !s.ReadUint24(&v) {
-		t.Error("ReadUint8() = false, want true")
-	}
-	if v != 0xfffefd {
-		t.Errorf("v = %d, want fffefd", v)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUint24Truncation(t *testing.T) {
-	var b Builder
-	b.AddUint24(0x10111213)
-	if err := builderBytesEq(&b, 0x11, 0x12, 0x13); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestUint32(t *testing.T) {
-	var b Builder
-	b.AddUint32(0xfffefdfc)
-	if err := builderBytesEq(&b, 255, 254, 253, 252); err != nil {
-		t.Error(err)
-	}
-
-	var s String = b.BytesOrPanic()
-	var v uint32
-	if !s.ReadUint32(&v) {
-		t.Error("ReadUint8() = false, want true")
-	}
-	if v != 0xfffefdfc {
-		t.Errorf("v = %x, want fffefdfc", v)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUMultiple(t *testing.T) {
-	var b Builder
-	b.AddUint8(23)
-	b.AddUint32(0xfffefdfc)
-	b.AddUint16(42)
-	if err := builderBytesEq(&b, 23, 255, 254, 253, 252, 0, 42); err != nil {
-		t.Error(err)
-	}
-
-	var s String = b.BytesOrPanic()
-	var (
-		x uint8
-		y uint32
-		z uint16
-	)
-	if !s.ReadUint8(&x) || !s.ReadUint32(&y) || !s.ReadUint16(&z) {
-		t.Error("ReadUint8() = false, want true")
-	}
-	if x != 23 || y != 0xfffefdfc || z != 42 {
-		t.Errorf("x, y, z = %d, %d, %d; want 23, 4294901244, 5", x, y, z)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-}
-
-func TestUint8LengthPrefixedSimple(t *testing.T) {
-	var b Builder
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8(23)
-		c.AddUint8(42)
-	})
-	if err := builderBytesEq(&b, 2, 23, 42); err != nil {
-		t.Error(err)
-	}
-
-	var base, child String = b.BytesOrPanic(), nil
-	var x, y uint8
-	if !base.ReadUint8LengthPrefixed(&child) || !child.ReadUint8(&x) ||
-		!child.ReadUint8(&y) {
-		t.Error("parsing failed")
-	}
-	if x != 23 || y != 42 {
-		t.Errorf("want x, y == 23, 42; got %d, %d", x, y)
-	}
-	if len(base) != 0 {
-		t.Errorf("len(base) = %d, want 0", len(base))
-	}
-	if len(child) != 0 {
-		t.Errorf("len(child) = %d, want 0", len(child))
-	}
-}
-
-func TestUint8LengthPrefixedMulti(t *testing.T) {
-	var b Builder
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8(23)
-		c.AddUint8(42)
-	})
-	b.AddUint8(5)
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8(123)
-		c.AddUint8(234)
-	})
-	if err := builderBytesEq(&b, 2, 23, 42, 5, 2, 123, 234); err != nil {
-		t.Error(err)
-	}
-
-	var s, child String = b.BytesOrPanic(), nil
-	var u, v, w, x, y uint8
-	if !s.ReadUint8LengthPrefixed(&child) || !child.ReadUint8(&u) || !child.ReadUint8(&v) ||
-		!s.ReadUint8(&w) || !s.ReadUint8LengthPrefixed(&child) || !child.ReadUint8(&x) || !child.ReadUint8(&y) {
-		t.Error("parsing failed")
-	}
-	if u != 23 || v != 42 || w != 5 || x != 123 || y != 234 {
-		t.Errorf("u, v, w, x, y = %d, %d, %d, %d, %d; want 23, 42, 5, 123, 234",
-			u, v, w, x, y)
-	}
-	if len(s) != 0 {
-		t.Errorf("len(s) = %d, want 0", len(s))
-	}
-	if len(child) != 0 {
-		t.Errorf("len(child) = %d, want 0", len(child))
-	}
-}
-
-func TestUint8LengthPrefixedNested(t *testing.T) {
-	var b Builder
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8(5)
-		c.AddUint8LengthPrefixed(func(d *Builder) {
-			d.AddUint8(23)
-			d.AddUint8(42)
-		})
-		c.AddUint8(123)
-	})
-	if err := builderBytesEq(&b, 5, 5, 2, 23, 42, 123); err != nil {
-		t.Error(err)
-	}
-
-	var base, child1, child2 String = b.BytesOrPanic(), nil, nil
-	var u, v, w, x uint8
-	if !base.ReadUint8LengthPrefixed(&child1) {
-		t.Error("parsing base failed")
-	}
-	if !child1.ReadUint8(&u) || !child1.ReadUint8LengthPrefixed(&child2) || !child1.ReadUint8(&x) {
-		t.Error("parsing child1 failed")
-	}
-	if !child2.ReadUint8(&v) || !child2.ReadUint8(&w) {
-		t.Error("parsing child2 failed")
-	}
-	if u != 5 || v != 23 || w != 42 || x != 123 {
-		t.Errorf("u, v, w, x = %d, %d, %d, %d, want 5, 23, 42, 123",
-			u, v, w, x)
-	}
-	if len(base) != 0 {
-		t.Errorf("len(base) = %d, want 0", len(base))
-	}
-	if len(child1) != 0 {
-		t.Errorf("len(child1) = %d, want 0", len(child1))
-	}
-	if len(base) != 0 {
-		t.Errorf("len(child2) = %d, want 0", len(child2))
-	}
-}
-
-func TestPreallocatedBuffer(t *testing.T) {
-	var buf [5]byte
-	b := NewBuilder(buf[0:0])
-	b.AddUint8(1)
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8(3)
-		c.AddUint8(4)
-	})
-	b.AddUint16(1286) // Outgrow buf by one byte.
-	want := []byte{1, 2, 3, 4, 0}
-	if !bytes.Equal(buf[:], want) {
-		t.Errorf("buf = %v want %v", buf, want)
-	}
-	if err := builderBytesEq(b, 1, 2, 3, 4, 5, 6); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestWriteWithPendingChild(t *testing.T) {
-	var b Builder
-	b.AddUint8LengthPrefixed(func(c *Builder) {
-		c.AddUint8LengthPrefixed(func(d *Builder) {
-			defer func() {
-				if recover() == nil {
-					t.Errorf("recover() = nil, want error; c.AddUint8() did not panic")
-				}
-			}()
-			c.AddUint8(2) // panics
-
-			defer func() {
-				if recover() == nil {
-					t.Errorf("recover() = nil, want error; b.AddUint8() did not panic")
-				}
-			}()
-			b.AddUint8(2) // panics
-		})
-
-		defer func() {
-			if recover() == nil {
-				t.Errorf("recover() = nil, want error; b.AddUint8() did not panic")
-			}
-		}()
-		b.AddUint8(2) // panics
-	})
-}
-
-// ASN.1
-
-func TestASN1Int64(t *testing.T) {
-	tests := []struct {
-		in   int64
-		want []byte
-	}{
-		{-0x800000, []byte{2, 3, 128, 0, 0}},
-		{-256, []byte{2, 2, 255, 0}},
-		{-129, []byte{2, 2, 255, 127}},
-		{-128, []byte{2, 1, 128}},
-		{-1, []byte{2, 1, 255}},
-		{0, []byte{2, 1, 0}},
-		{1, []byte{2, 1, 1}},
-		{2, []byte{2, 1, 2}},
-		{127, []byte{2, 1, 127}},
-		{128, []byte{2, 2, 0, 128}},
-		{256, []byte{2, 2, 1, 0}},
-		{0x800000, []byte{2, 4, 0, 128, 0, 0}},
-	}
-	for i, tt := range tests {
-		var b Builder
-		b.AddASN1Int64(tt.in)
-		if err := builderBytesEq(&b, tt.want...); err != nil {
-			t.Errorf("%v, (i = %d; in = %v)", err, i, tt.in)
-		}
-
-		var n int64
-		s := String(b.BytesOrPanic())
-		ok := s.ReadASN1Integer(&n)
-		if !ok || n != tt.in {
-			t.Errorf("s.ReadASN1Integer(&n) = %v, n = %d; want true, n = %d (i = %d)",
-				ok, n, tt.in, i)
-		}
-		if len(s) != 0 {
-			t.Errorf("len(s) = %d, want 0", len(s))
-		}
-	}
-}
-
-func TestASN1Uint64(t *testing.T) {
-	tests := []struct {
-		in   uint64
-		want []byte
-	}{
-		{0, []byte{2, 1, 0}},
-		{1, []byte{2, 1, 1}},
-		{2, []byte{2, 1, 2}},
-		{127, []byte{2, 1, 127}},
-		{128, []byte{2, 2, 0, 128}},
-		{256, []byte{2, 2, 1, 0}},
-		{0x800000, []byte{2, 4, 0, 128, 0, 0}},
-		{0x7fffffffffffffff, []byte{2, 8, 127, 255, 255, 255, 255, 255, 255, 255}},
-		{0x8000000000000000, []byte{2, 9, 0, 128, 0, 0, 0, 0, 0, 0, 0}},
-		{0xffffffffffffffff, []byte{2, 9, 0, 255, 255, 255, 255, 255, 255, 255, 255}},
-	}
-	for i, tt := range tests {
-		var b Builder
-		b.AddASN1Uint64(tt.in)
-		if err := builderBytesEq(&b, tt.want...); err != nil {
-			t.Errorf("%v, (i = %d; in = %v)", err, i, tt.in)
-		}
-
-		var n uint64
-		s := String(b.BytesOrPanic())
-		ok := s.ReadASN1Integer(&n)
-		if !ok || n != tt.in {
-			t.Errorf("s.ReadASN1Integer(&n) = %v, n = %d; want true, n = %d (i = %d)",
-				ok, n, tt.in, i)
-		}
-		if len(s) != 0 {
-			t.Errorf("len(s) = %d, want 0", len(s))
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/cryptobyte/example_test.go b/vendor/golang.org/x/crypto/cryptobyte/example_test.go
deleted file mode 100644
index 86c098a..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/example_test.go
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package cryptobyte_test
-
-import (
-	"errors"
-	"fmt"
-
-	"golang.org/x/crypto/cryptobyte"
-	"golang.org/x/crypto/cryptobyte/asn1"
-)
-
-func ExampleString_lengthPrefixed() {
-	// This is an example of parsing length-prefixed data (as found in, for
-	// example, TLS). Imagine a 16-bit prefixed series of 8-bit prefixed
-	// strings.
-
-	input := cryptobyte.String([]byte{0, 12, 5, 'h', 'e', 'l', 'l', 'o', 5, 'w', 'o', 'r', 'l', 'd'})
-	var result []string
-
-	var values cryptobyte.String
-	if !input.ReadUint16LengthPrefixed(&values) ||
-		!input.Empty() {
-		panic("bad format")
-	}
-
-	for !values.Empty() {
-		var value cryptobyte.String
-		if !values.ReadUint8LengthPrefixed(&value) {
-			panic("bad format")
-		}
-
-		result = append(result, string(value))
-	}
-
-	// Output: []string{"hello", "world"}
-	fmt.Printf("%#v\n", result)
-}
-
-func ExampleString_aSN1() {
-	// This is an example of parsing ASN.1 data that looks like:
-	//    Foo ::= SEQUENCE {
-	//      version [6] INTEGER DEFAULT 0
-	//      data OCTET STRING
-	//    }
-
-	input := cryptobyte.String([]byte{0x30, 12, 0xa6, 3, 2, 1, 2, 4, 5, 'h', 'e', 'l', 'l', 'o'})
-
-	var (
-		version                   int64
-		data, inner, versionBytes cryptobyte.String
-		haveVersion               bool
-	)
-	if !input.ReadASN1(&inner, asn1.SEQUENCE) ||
-		!input.Empty() ||
-		!inner.ReadOptionalASN1(&versionBytes, &haveVersion, asn1.Tag(6).Constructed().ContextSpecific()) ||
-		(haveVersion && !versionBytes.ReadASN1Integer(&version)) ||
-		(haveVersion && !versionBytes.Empty()) ||
-		!inner.ReadASN1(&data, asn1.OCTET_STRING) ||
-		!inner.Empty() {
-		panic("bad format")
-	}
-
-	// Output: haveVersion: true, version: 2, data: hello
-	fmt.Printf("haveVersion: %t, version: %d, data: %s\n", haveVersion, version, string(data))
-}
-
-func ExampleBuilder_aSN1() {
-	// This is an example of building ASN.1 data that looks like:
-	//    Foo ::= SEQUENCE {
-	//      version [6] INTEGER DEFAULT 0
-	//      data OCTET STRING
-	//    }
-
-	version := int64(2)
-	data := []byte("hello")
-	const defaultVersion = 0
-
-	var b cryptobyte.Builder
-	b.AddASN1(asn1.SEQUENCE, func(b *cryptobyte.Builder) {
-		if version != defaultVersion {
-			b.AddASN1(asn1.Tag(6).Constructed().ContextSpecific(), func(b *cryptobyte.Builder) {
-				b.AddASN1Int64(version)
-			})
-		}
-		b.AddASN1OctetString(data)
-	})
-
-	result, err := b.Bytes()
-	if err != nil {
-		panic(err)
-	}
-
-	// Output: 300ca603020102040568656c6c6f
-	fmt.Printf("%x\n", result)
-}
-
-func ExampleBuilder_lengthPrefixed() {
-	// This is an example of building length-prefixed data (as found in,
-	// for example, TLS). Imagine a 16-bit prefixed series of 8-bit
-	// prefixed strings.
-	input := []string{"hello", "world"}
-
-	var b cryptobyte.Builder
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		for _, value := range input {
-			b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-				b.AddBytes([]byte(value))
-			})
-		}
-	})
-
-	result, err := b.Bytes()
-	if err != nil {
-		panic(err)
-	}
-
-	// Output: 000c0568656c6c6f05776f726c64
-	fmt.Printf("%x\n", result)
-}
-
-func ExampleBuilder_lengthPrefixOverflow() {
-	// Writing more data that can be expressed by the length prefix results
-	// in an error from Bytes().
-
-	tooLarge := make([]byte, 256)
-
-	var b cryptobyte.Builder
-	b.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddBytes(tooLarge)
-	})
-
-	result, err := b.Bytes()
-	fmt.Printf("len=%d err=%s\n", len(result), err)
-
-	// Output: len=0 err=cryptobyte: pending child length 256 exceeds 1-byte length prefix
-}
-
-func ExampleBuilderContinuation_errorHandling() {
-	var b cryptobyte.Builder
-	// Continuations that panic with a BuildError will cause Bytes to
-	// return the inner error.
-	b.AddUint16LengthPrefixed(func(b *cryptobyte.Builder) {
-		b.AddUint32(0)
-		panic(cryptobyte.BuildError{Err: errors.New("example error")})
-	})
-
-	result, err := b.Bytes()
-	fmt.Printf("len=%d err=%s\n", len(result), err)
-
-	// Output: len=0 err=example error
-}
diff --git a/vendor/golang.org/x/crypto/cryptobyte/string.go b/vendor/golang.org/x/crypto/cryptobyte/string.go
deleted file mode 100644
index 39bf98a..0000000
--- a/vendor/golang.org/x/crypto/cryptobyte/string.go
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package cryptobyte contains types that help with parsing and constructing
-// length-prefixed, binary messages, including ASN.1 DER. (The asn1 subpackage
-// contains useful ASN.1 constants.)
-//
-// The String type is for parsing. It wraps a []byte slice and provides helper
-// functions for consuming structures, value by value.
-//
-// The Builder type is for constructing messages. It providers helper functions
-// for appending values and also for appending length-prefixed submessages –
-// without having to worry about calculating the length prefix ahead of time.
-//
-// See the documentation and examples for the Builder and String types to get
-// started.
-package cryptobyte // import "golang.org/x/crypto/cryptobyte"
-
-// String represents a string of bytes. It provides methods for parsing
-// fixed-length and length-prefixed values from it.
-type String []byte
-
-// read advances a String by n bytes and returns them. If less than n bytes
-// remain, it returns nil.
-func (s *String) read(n int) []byte {
-	if len(*s) < n {
-		return nil
-	}
-	v := (*s)[:n]
-	*s = (*s)[n:]
-	return v
-}
-
-// Skip advances the String by n byte and reports whether it was successful.
-func (s *String) Skip(n int) bool {
-	return s.read(n) != nil
-}
-
-// ReadUint8 decodes an 8-bit value into out and advances over it.
-// It reports whether the read was successful.
-func (s *String) ReadUint8(out *uint8) bool {
-	v := s.read(1)
-	if v == nil {
-		return false
-	}
-	*out = uint8(v[0])
-	return true
-}
-
-// ReadUint16 decodes a big-endian, 16-bit value into out and advances over it.
-// It reports whether the read was successful.
-func (s *String) ReadUint16(out *uint16) bool {
-	v := s.read(2)
-	if v == nil {
-		return false
-	}
-	*out = uint16(v[0])<<8 | uint16(v[1])
-	return true
-}
-
-// ReadUint24 decodes a big-endian, 24-bit value into out and advances over it.
-// It reports whether the read was successful.
-func (s *String) ReadUint24(out *uint32) bool {
-	v := s.read(3)
-	if v == nil {
-		return false
-	}
-	*out = uint32(v[0])<<16 | uint32(v[1])<<8 | uint32(v[2])
-	return true
-}
-
-// ReadUint32 decodes a big-endian, 32-bit value into out and advances over it.
-// It reports whether the read was successful.
-func (s *String) ReadUint32(out *uint32) bool {
-	v := s.read(4)
-	if v == nil {
-		return false
-	}
-	*out = uint32(v[0])<<24 | uint32(v[1])<<16 | uint32(v[2])<<8 | uint32(v[3])
-	return true
-}
-
-func (s *String) readUnsigned(out *uint32, length int) bool {
-	v := s.read(length)
-	if v == nil {
-		return false
-	}
-	var result uint32
-	for i := 0; i < length; i++ {
-		result <<= 8
-		result |= uint32(v[i])
-	}
-	*out = result
-	return true
-}
-
-func (s *String) readLengthPrefixed(lenLen int, outChild *String) bool {
-	lenBytes := s.read(lenLen)
-	if lenBytes == nil {
-		return false
-	}
-	var length uint32
-	for _, b := range lenBytes {
-		length = length << 8
-		length = length | uint32(b)
-	}
-	if int(length) < 0 {
-		// This currently cannot overflow because we read uint24 at most, but check
-		// anyway in case that changes in the future.
-		return false
-	}
-	v := s.read(int(length))
-	if v == nil {
-		return false
-	}
-	*outChild = v
-	return true
-}
-
-// ReadUint8LengthPrefixed reads the content of an 8-bit length-prefixed value
-// into out and advances over it. It reports whether the read was successful.
-func (s *String) ReadUint8LengthPrefixed(out *String) bool {
-	return s.readLengthPrefixed(1, out)
-}
-
-// ReadUint16LengthPrefixed reads the content of a big-endian, 16-bit
-// length-prefixed value into out and advances over it. It reports whether the
-// read was successful.
-func (s *String) ReadUint16LengthPrefixed(out *String) bool {
-	return s.readLengthPrefixed(2, out)
-}
-
-// ReadUint24LengthPrefixed reads the content of a big-endian, 24-bit
-// length-prefixed value into out and advances over it. It reports whether
-// the read was successful.
-func (s *String) ReadUint24LengthPrefixed(out *String) bool {
-	return s.readLengthPrefixed(3, out)
-}
-
-// ReadBytes reads n bytes into out and advances over them. It reports
-// whether the read was successful.
-func (s *String) ReadBytes(out *[]byte, n int) bool {
-	v := s.read(n)
-	if v == nil {
-		return false
-	}
-	*out = v
-	return true
-}
-
-// CopyBytes copies len(out) bytes into out and advances over them. It reports
-// whether the copy operation was successful
-func (s *String) CopyBytes(out []byte) bool {
-	n := len(out)
-	v := s.read(n)
-	if v == nil {
-		return false
-	}
-	return copy(out, v) == n
-}
-
-// Empty reports whether the string does not contain any bytes.
-func (s String) Empty() bool {
-	return len(s) == 0
-}
diff --git a/vendor/golang.org/x/crypto/curve25519/const_amd64.h b/vendor/golang.org/x/crypto/curve25519/const_amd64.h
deleted file mode 100644
index b3f7416..0000000
--- a/vendor/golang.org/x/crypto/curve25519/const_amd64.h
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-#define REDMASK51     0x0007FFFFFFFFFFFF
diff --git a/vendor/golang.org/x/crypto/curve25519/const_amd64.s b/vendor/golang.org/x/crypto/curve25519/const_amd64.s
deleted file mode 100644
index ee7b4bd..0000000
--- a/vendor/golang.org/x/crypto/curve25519/const_amd64.s
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-// These constants cannot be encoded in non-MOVQ immediates.
-// We access them directly from memory instead.
-
-DATA ·_121666_213(SB)/8, $996687872
-GLOBL ·_121666_213(SB), 8, $8
-
-DATA ·_2P0(SB)/8, $0xFFFFFFFFFFFDA
-GLOBL ·_2P0(SB), 8, $8
-
-DATA ·_2P1234(SB)/8, $0xFFFFFFFFFFFFE
-GLOBL ·_2P1234(SB), 8, $8
diff --git a/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s b/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
deleted file mode 100644
index cd793a5..0000000
--- a/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-// func cswap(inout *[4][5]uint64, v uint64)
-TEXT ·cswap(SB),7,$0
-	MOVQ inout+0(FP),DI
-	MOVQ v+8(FP),SI
-
-	SUBQ $1, SI
-	NOTQ SI
-	MOVQ SI, X15
-	PSHUFD $0x44, X15, X15
-
-	MOVOU 0(DI), X0
-	MOVOU 16(DI), X2
-	MOVOU 32(DI), X4
-	MOVOU 48(DI), X6
-	MOVOU 64(DI), X8
-	MOVOU 80(DI), X1
-	MOVOU 96(DI), X3
-	MOVOU 112(DI), X5
-	MOVOU 128(DI), X7
-	MOVOU 144(DI), X9
-
-	MOVO X1, X10
-	MOVO X3, X11
-	MOVO X5, X12
-	MOVO X7, X13
-	MOVO X9, X14
-
-	PXOR X0, X10
-	PXOR X2, X11
-	PXOR X4, X12
-	PXOR X6, X13
-	PXOR X8, X14
-	PAND X15, X10
-	PAND X15, X11
-	PAND X15, X12
-	PAND X15, X13
-	PAND X15, X14
-	PXOR X10, X0
-	PXOR X10, X1
-	PXOR X11, X2
-	PXOR X11, X3
-	PXOR X12, X4
-	PXOR X12, X5
-	PXOR X13, X6
-	PXOR X13, X7
-	PXOR X14, X8
-	PXOR X14, X9
-
-	MOVOU X0, 0(DI)
-	MOVOU X2, 16(DI)
-	MOVOU X4, 32(DI)
-	MOVOU X6, 48(DI)
-	MOVOU X8, 64(DI)
-	MOVOU X1, 80(DI)
-	MOVOU X3, 96(DI)
-	MOVOU X5, 112(DI)
-	MOVOU X7, 128(DI)
-	MOVOU X9, 144(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519.go b/vendor/golang.org/x/crypto/curve25519/curve25519.go
deleted file mode 100644
index cb8fbc5..0000000
--- a/vendor/golang.org/x/crypto/curve25519/curve25519.go
+++ /dev/null
@@ -1,834 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// We have an implementation in amd64 assembly so this code is only run on
-// non-amd64 platforms. The amd64 assembly does not support gccgo.
-// +build !amd64 gccgo appengine
-
-package curve25519
-
-import (
-	"encoding/binary"
-)
-
-// This code is a port of the public domain, "ref10" implementation of
-// curve25519 from SUPERCOP 20130419 by D. J. Bernstein.
-
-// fieldElement represents an element of the field GF(2^255 - 19). An element
-// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
-// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on
-// context.
-type fieldElement [10]int32
-
-func feZero(fe *fieldElement) {
-	for i := range fe {
-		fe[i] = 0
-	}
-}
-
-func feOne(fe *fieldElement) {
-	feZero(fe)
-	fe[0] = 1
-}
-
-func feAdd(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] + b[i]
-	}
-}
-
-func feSub(dst, a, b *fieldElement) {
-	for i := range dst {
-		dst[i] = a[i] - b[i]
-	}
-}
-
-func feCopy(dst, src *fieldElement) {
-	for i := range dst {
-		dst[i] = src[i]
-	}
-}
-
-// feCSwap replaces (f,g) with (g,f) if b == 1; replaces (f,g) with (f,g) if b == 0.
-//
-// Preconditions: b in {0,1}.
-func feCSwap(f, g *fieldElement, b int32) {
-	b = -b
-	for i := range f {
-		t := b & (f[i] ^ g[i])
-		f[i] ^= t
-		g[i] ^= t
-	}
-}
-
-// load3 reads a 24-bit, little-endian value from in.
-func load3(in []byte) int64 {
-	var r int64
-	r = int64(in[0])
-	r |= int64(in[1]) << 8
-	r |= int64(in[2]) << 16
-	return r
-}
-
-// load4 reads a 32-bit, little-endian value from in.
-func load4(in []byte) int64 {
-	return int64(binary.LittleEndian.Uint32(in))
-}
-
-func feFromBytes(dst *fieldElement, src *[32]byte) {
-	h0 := load4(src[:])
-	h1 := load3(src[4:]) << 6
-	h2 := load3(src[7:]) << 5
-	h3 := load3(src[10:]) << 3
-	h4 := load3(src[13:]) << 2
-	h5 := load4(src[16:])
-	h6 := load3(src[20:]) << 7
-	h7 := load3(src[23:]) << 5
-	h8 := load3(src[26:]) << 4
-	h9 := load3(src[29:]) << 2
-
-	var carry [10]int64
-	carry[9] = (h9 + 1<<24) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + 1<<24) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + 1<<24) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + 1<<24) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + 1<<24) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + 1<<25) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + 1<<25) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + 1<<25) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + 1<<25) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + 1<<25) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	dst[0] = int32(h0)
-	dst[1] = int32(h1)
-	dst[2] = int32(h2)
-	dst[3] = int32(h3)
-	dst[4] = int32(h4)
-	dst[5] = int32(h5)
-	dst[6] = int32(h6)
-	dst[7] = int32(h7)
-	dst[8] = int32(h8)
-	dst[9] = int32(h9)
-}
-
-// feToBytes marshals h to s.
-// Preconditions:
-//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Write p=2^255-19; q=floor(h/p).
-// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
-//
-// Proof:
-//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
-//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
-//
-//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
-//   Then 0<y<1.
-//
-//   Write r=h-pq.
-//   Have 0<=r<=p-1=2^255-20.
-//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
-//
-//   Write x=r+19(2^-255)r+y.
-//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
-//
-//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
-//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
-func feToBytes(s *[32]byte, h *fieldElement) {
-	var carry [10]int32
-
-	q := (19*h[9] + (1 << 24)) >> 25
-	q = (h[0] + q) >> 26
-	q = (h[1] + q) >> 25
-	q = (h[2] + q) >> 26
-	q = (h[3] + q) >> 25
-	q = (h[4] + q) >> 26
-	q = (h[5] + q) >> 25
-	q = (h[6] + q) >> 26
-	q = (h[7] + q) >> 25
-	q = (h[8] + q) >> 26
-	q = (h[9] + q) >> 25
-
-	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
-	h[0] += 19 * q
-	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
-
-	carry[0] = h[0] >> 26
-	h[1] += carry[0]
-	h[0] -= carry[0] << 26
-	carry[1] = h[1] >> 25
-	h[2] += carry[1]
-	h[1] -= carry[1] << 25
-	carry[2] = h[2] >> 26
-	h[3] += carry[2]
-	h[2] -= carry[2] << 26
-	carry[3] = h[3] >> 25
-	h[4] += carry[3]
-	h[3] -= carry[3] << 25
-	carry[4] = h[4] >> 26
-	h[5] += carry[4]
-	h[4] -= carry[4] << 26
-	carry[5] = h[5] >> 25
-	h[6] += carry[5]
-	h[5] -= carry[5] << 25
-	carry[6] = h[6] >> 26
-	h[7] += carry[6]
-	h[6] -= carry[6] << 26
-	carry[7] = h[7] >> 25
-	h[8] += carry[7]
-	h[7] -= carry[7] << 25
-	carry[8] = h[8] >> 26
-	h[9] += carry[8]
-	h[8] -= carry[8] << 26
-	carry[9] = h[9] >> 25
-	h[9] -= carry[9] << 25
-	// h10 = carry9
-
-	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
-	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
-	// evidently 2^255 h10-2^255 q = 0.
-	// Goal: Output h[0]+...+2^230 h[9].
-
-	s[0] = byte(h[0] >> 0)
-	s[1] = byte(h[0] >> 8)
-	s[2] = byte(h[0] >> 16)
-	s[3] = byte((h[0] >> 24) | (h[1] << 2))
-	s[4] = byte(h[1] >> 6)
-	s[5] = byte(h[1] >> 14)
-	s[6] = byte((h[1] >> 22) | (h[2] << 3))
-	s[7] = byte(h[2] >> 5)
-	s[8] = byte(h[2] >> 13)
-	s[9] = byte((h[2] >> 21) | (h[3] << 5))
-	s[10] = byte(h[3] >> 3)
-	s[11] = byte(h[3] >> 11)
-	s[12] = byte((h[3] >> 19) | (h[4] << 6))
-	s[13] = byte(h[4] >> 2)
-	s[14] = byte(h[4] >> 10)
-	s[15] = byte(h[4] >> 18)
-	s[16] = byte(h[5] >> 0)
-	s[17] = byte(h[5] >> 8)
-	s[18] = byte(h[5] >> 16)
-	s[19] = byte((h[5] >> 24) | (h[6] << 1))
-	s[20] = byte(h[6] >> 7)
-	s[21] = byte(h[6] >> 15)
-	s[22] = byte((h[6] >> 23) | (h[7] << 3))
-	s[23] = byte(h[7] >> 5)
-	s[24] = byte(h[7] >> 13)
-	s[25] = byte((h[7] >> 21) | (h[8] << 4))
-	s[26] = byte(h[8] >> 4)
-	s[27] = byte(h[8] >> 12)
-	s[28] = byte((h[8] >> 20) | (h[9] << 6))
-	s[29] = byte(h[9] >> 2)
-	s[30] = byte(h[9] >> 10)
-	s[31] = byte(h[9] >> 18)
-}
-
-// feMul calculates h = f * g
-// Can overlap h with f or g.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Notes on implementation strategy:
-//
-// Using schoolbook multiplication.
-// Karatsuba would save a little in some cost models.
-//
-// Most multiplications by 2 and 19 are 32-bit precomputations;
-// cheaper than 64-bit postcomputations.
-//
-// There is one remaining multiplication by 19 in the carry chain;
-// one *19 precomputation can be merged into this,
-// but the resulting data flow is considerably less clean.
-//
-// There are 12 carries below.
-// 10 of them are 2-way parallelizable and vectorizable.
-// Can get away with 11 carries, but then data flow is much deeper.
-//
-// With tighter constraints on inputs can squeeze carries into int32.
-func feMul(h, f, g *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	g0 := g[0]
-	g1 := g[1]
-	g2 := g[2]
-	g3 := g[3]
-	g4 := g[4]
-	g5 := g[5]
-	g6 := g[6]
-	g7 := g[7]
-	g8 := g[8]
-	g9 := g[9]
-	g1_19 := 19 * g1 // 1.4*2^29
-	g2_19 := 19 * g2 // 1.4*2^30; still ok
-	g3_19 := 19 * g3
-	g4_19 := 19 * g4
-	g5_19 := 19 * g5
-	g6_19 := 19 * g6
-	g7_19 := 19 * g7
-	g8_19 := 19 * g8
-	g9_19 := 19 * g9
-	f1_2 := 2 * f1
-	f3_2 := 2 * f3
-	f5_2 := 2 * f5
-	f7_2 := 2 * f7
-	f9_2 := 2 * f9
-	f0g0 := int64(f0) * int64(g0)
-	f0g1 := int64(f0) * int64(g1)
-	f0g2 := int64(f0) * int64(g2)
-	f0g3 := int64(f0) * int64(g3)
-	f0g4 := int64(f0) * int64(g4)
-	f0g5 := int64(f0) * int64(g5)
-	f0g6 := int64(f0) * int64(g6)
-	f0g7 := int64(f0) * int64(g7)
-	f0g8 := int64(f0) * int64(g8)
-	f0g9 := int64(f0) * int64(g9)
-	f1g0 := int64(f1) * int64(g0)
-	f1g1_2 := int64(f1_2) * int64(g1)
-	f1g2 := int64(f1) * int64(g2)
-	f1g3_2 := int64(f1_2) * int64(g3)
-	f1g4 := int64(f1) * int64(g4)
-	f1g5_2 := int64(f1_2) * int64(g5)
-	f1g6 := int64(f1) * int64(g6)
-	f1g7_2 := int64(f1_2) * int64(g7)
-	f1g8 := int64(f1) * int64(g8)
-	f1g9_38 := int64(f1_2) * int64(g9_19)
-	f2g0 := int64(f2) * int64(g0)
-	f2g1 := int64(f2) * int64(g1)
-	f2g2 := int64(f2) * int64(g2)
-	f2g3 := int64(f2) * int64(g3)
-	f2g4 := int64(f2) * int64(g4)
-	f2g5 := int64(f2) * int64(g5)
-	f2g6 := int64(f2) * int64(g6)
-	f2g7 := int64(f2) * int64(g7)
-	f2g8_19 := int64(f2) * int64(g8_19)
-	f2g9_19 := int64(f2) * int64(g9_19)
-	f3g0 := int64(f3) * int64(g0)
-	f3g1_2 := int64(f3_2) * int64(g1)
-	f3g2 := int64(f3) * int64(g2)
-	f3g3_2 := int64(f3_2) * int64(g3)
-	f3g4 := int64(f3) * int64(g4)
-	f3g5_2 := int64(f3_2) * int64(g5)
-	f3g6 := int64(f3) * int64(g6)
-	f3g7_38 := int64(f3_2) * int64(g7_19)
-	f3g8_19 := int64(f3) * int64(g8_19)
-	f3g9_38 := int64(f3_2) * int64(g9_19)
-	f4g0 := int64(f4) * int64(g0)
-	f4g1 := int64(f4) * int64(g1)
-	f4g2 := int64(f4) * int64(g2)
-	f4g3 := int64(f4) * int64(g3)
-	f4g4 := int64(f4) * int64(g4)
-	f4g5 := int64(f4) * int64(g5)
-	f4g6_19 := int64(f4) * int64(g6_19)
-	f4g7_19 := int64(f4) * int64(g7_19)
-	f4g8_19 := int64(f4) * int64(g8_19)
-	f4g9_19 := int64(f4) * int64(g9_19)
-	f5g0 := int64(f5) * int64(g0)
-	f5g1_2 := int64(f5_2) * int64(g1)
-	f5g2 := int64(f5) * int64(g2)
-	f5g3_2 := int64(f5_2) * int64(g3)
-	f5g4 := int64(f5) * int64(g4)
-	f5g5_38 := int64(f5_2) * int64(g5_19)
-	f5g6_19 := int64(f5) * int64(g6_19)
-	f5g7_38 := int64(f5_2) * int64(g7_19)
-	f5g8_19 := int64(f5) * int64(g8_19)
-	f5g9_38 := int64(f5_2) * int64(g9_19)
-	f6g0 := int64(f6) * int64(g0)
-	f6g1 := int64(f6) * int64(g1)
-	f6g2 := int64(f6) * int64(g2)
-	f6g3 := int64(f6) * int64(g3)
-	f6g4_19 := int64(f6) * int64(g4_19)
-	f6g5_19 := int64(f6) * int64(g5_19)
-	f6g6_19 := int64(f6) * int64(g6_19)
-	f6g7_19 := int64(f6) * int64(g7_19)
-	f6g8_19 := int64(f6) * int64(g8_19)
-	f6g9_19 := int64(f6) * int64(g9_19)
-	f7g0 := int64(f7) * int64(g0)
-	f7g1_2 := int64(f7_2) * int64(g1)
-	f7g2 := int64(f7) * int64(g2)
-	f7g3_38 := int64(f7_2) * int64(g3_19)
-	f7g4_19 := int64(f7) * int64(g4_19)
-	f7g5_38 := int64(f7_2) * int64(g5_19)
-	f7g6_19 := int64(f7) * int64(g6_19)
-	f7g7_38 := int64(f7_2) * int64(g7_19)
-	f7g8_19 := int64(f7) * int64(g8_19)
-	f7g9_38 := int64(f7_2) * int64(g9_19)
-	f8g0 := int64(f8) * int64(g0)
-	f8g1 := int64(f8) * int64(g1)
-	f8g2_19 := int64(f8) * int64(g2_19)
-	f8g3_19 := int64(f8) * int64(g3_19)
-	f8g4_19 := int64(f8) * int64(g4_19)
-	f8g5_19 := int64(f8) * int64(g5_19)
-	f8g6_19 := int64(f8) * int64(g6_19)
-	f8g7_19 := int64(f8) * int64(g7_19)
-	f8g8_19 := int64(f8) * int64(g8_19)
-	f8g9_19 := int64(f8) * int64(g9_19)
-	f9g0 := int64(f9) * int64(g0)
-	f9g1_38 := int64(f9_2) * int64(g1_19)
-	f9g2_19 := int64(f9) * int64(g2_19)
-	f9g3_38 := int64(f9_2) * int64(g3_19)
-	f9g4_19 := int64(f9) * int64(g4_19)
-	f9g5_38 := int64(f9_2) * int64(g5_19)
-	f9g6_19 := int64(f9) * int64(g6_19)
-	f9g7_38 := int64(f9_2) * int64(g7_19)
-	f9g8_19 := int64(f9) * int64(g8_19)
-	f9g9_38 := int64(f9_2) * int64(g9_19)
-	h0 := f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38
-	h1 := f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19
-	h2 := f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38
-	h3 := f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19
-	h4 := f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38
-	h5 := f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19
-	h6 := f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38
-	h7 := f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19
-	h8 := f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38
-	h9 := f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0
-	var carry [10]int64
-
-	// |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
-	//   i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
-	// |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
-	//   i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	// |h0| <= 2^25
-	// |h4| <= 2^25
-	// |h1| <= 1.51*2^58
-	// |h5| <= 1.51*2^58
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	// |h1| <= 2^24; from now on fits into int32
-	// |h5| <= 2^24; from now on fits into int32
-	// |h2| <= 1.21*2^59
-	// |h6| <= 1.21*2^59
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	// |h2| <= 2^25; from now on fits into int32 unchanged
-	// |h6| <= 2^25; from now on fits into int32 unchanged
-	// |h3| <= 1.51*2^58
-	// |h7| <= 1.51*2^58
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-	// |h3| <= 2^24; from now on fits into int32 unchanged
-	// |h7| <= 2^24; from now on fits into int32 unchanged
-	// |h4| <= 1.52*2^33
-	// |h8| <= 1.52*2^33
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-	// |h4| <= 2^25; from now on fits into int32 unchanged
-	// |h8| <= 2^25; from now on fits into int32 unchanged
-	// |h5| <= 1.01*2^24
-	// |h9| <= 1.51*2^58
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	// |h9| <= 2^24; from now on fits into int32 unchanged
-	// |h0| <= 1.8*2^37
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	// |h0| <= 2^25; from now on fits into int32 unchanged
-	// |h1| <= 1.01*2^24
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feSquare calculates h = f*f. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feSquare(h, f *fieldElement) {
-	f0 := f[0]
-	f1 := f[1]
-	f2 := f[2]
-	f3 := f[3]
-	f4 := f[4]
-	f5 := f[5]
-	f6 := f[6]
-	f7 := f[7]
-	f8 := f[8]
-	f9 := f[9]
-	f0_2 := 2 * f0
-	f1_2 := 2 * f1
-	f2_2 := 2 * f2
-	f3_2 := 2 * f3
-	f4_2 := 2 * f4
-	f5_2 := 2 * f5
-	f6_2 := 2 * f6
-	f7_2 := 2 * f7
-	f5_38 := 38 * f5 // 1.31*2^30
-	f6_19 := 19 * f6 // 1.31*2^30
-	f7_38 := 38 * f7 // 1.31*2^30
-	f8_19 := 19 * f8 // 1.31*2^30
-	f9_38 := 38 * f9 // 1.31*2^30
-	f0f0 := int64(f0) * int64(f0)
-	f0f1_2 := int64(f0_2) * int64(f1)
-	f0f2_2 := int64(f0_2) * int64(f2)
-	f0f3_2 := int64(f0_2) * int64(f3)
-	f0f4_2 := int64(f0_2) * int64(f4)
-	f0f5_2 := int64(f0_2) * int64(f5)
-	f0f6_2 := int64(f0_2) * int64(f6)
-	f0f7_2 := int64(f0_2) * int64(f7)
-	f0f8_2 := int64(f0_2) * int64(f8)
-	f0f9_2 := int64(f0_2) * int64(f9)
-	f1f1_2 := int64(f1_2) * int64(f1)
-	f1f2_2 := int64(f1_2) * int64(f2)
-	f1f3_4 := int64(f1_2) * int64(f3_2)
-	f1f4_2 := int64(f1_2) * int64(f4)
-	f1f5_4 := int64(f1_2) * int64(f5_2)
-	f1f6_2 := int64(f1_2) * int64(f6)
-	f1f7_4 := int64(f1_2) * int64(f7_2)
-	f1f8_2 := int64(f1_2) * int64(f8)
-	f1f9_76 := int64(f1_2) * int64(f9_38)
-	f2f2 := int64(f2) * int64(f2)
-	f2f3_2 := int64(f2_2) * int64(f3)
-	f2f4_2 := int64(f2_2) * int64(f4)
-	f2f5_2 := int64(f2_2) * int64(f5)
-	f2f6_2 := int64(f2_2) * int64(f6)
-	f2f7_2 := int64(f2_2) * int64(f7)
-	f2f8_38 := int64(f2_2) * int64(f8_19)
-	f2f9_38 := int64(f2) * int64(f9_38)
-	f3f3_2 := int64(f3_2) * int64(f3)
-	f3f4_2 := int64(f3_2) * int64(f4)
-	f3f5_4 := int64(f3_2) * int64(f5_2)
-	f3f6_2 := int64(f3_2) * int64(f6)
-	f3f7_76 := int64(f3_2) * int64(f7_38)
-	f3f8_38 := int64(f3_2) * int64(f8_19)
-	f3f9_76 := int64(f3_2) * int64(f9_38)
-	f4f4 := int64(f4) * int64(f4)
-	f4f5_2 := int64(f4_2) * int64(f5)
-	f4f6_38 := int64(f4_2) * int64(f6_19)
-	f4f7_38 := int64(f4) * int64(f7_38)
-	f4f8_38 := int64(f4_2) * int64(f8_19)
-	f4f9_38 := int64(f4) * int64(f9_38)
-	f5f5_38 := int64(f5) * int64(f5_38)
-	f5f6_38 := int64(f5_2) * int64(f6_19)
-	f5f7_76 := int64(f5_2) * int64(f7_38)
-	f5f8_38 := int64(f5_2) * int64(f8_19)
-	f5f9_76 := int64(f5_2) * int64(f9_38)
-	f6f6_19 := int64(f6) * int64(f6_19)
-	f6f7_38 := int64(f6) * int64(f7_38)
-	f6f8_38 := int64(f6_2) * int64(f8_19)
-	f6f9_38 := int64(f6) * int64(f9_38)
-	f7f7_38 := int64(f7) * int64(f7_38)
-	f7f8_38 := int64(f7_2) * int64(f8_19)
-	f7f9_76 := int64(f7_2) * int64(f9_38)
-	f8f8_19 := int64(f8) * int64(f8_19)
-	f8f9_38 := int64(f8) * int64(f9_38)
-	f9f9_38 := int64(f9) * int64(f9_38)
-	h0 := f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38
-	h1 := f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38
-	h2 := f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19
-	h3 := f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38
-	h4 := f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38
-	h5 := f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38
-	h6 := f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19
-	h7 := f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38
-	h8 := f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38
-	h9 := f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2
-	var carry [10]int64
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feMul121666 calculates h = f * 121666. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func feMul121666(h, f *fieldElement) {
-	h0 := int64(f[0]) * 121666
-	h1 := int64(f[1]) * 121666
-	h2 := int64(f[2]) * 121666
-	h3 := int64(f[3]) * 121666
-	h4 := int64(f[4]) * 121666
-	h5 := int64(f[5]) * 121666
-	h6 := int64(f[6]) * 121666
-	h7 := int64(f[7]) * 121666
-	h8 := int64(f[8]) * 121666
-	h9 := int64(f[9]) * 121666
-	var carry [10]int64
-
-	carry[9] = (h9 + (1 << 24)) >> 25
-	h0 += carry[9] * 19
-	h9 -= carry[9] << 25
-	carry[1] = (h1 + (1 << 24)) >> 25
-	h2 += carry[1]
-	h1 -= carry[1] << 25
-	carry[3] = (h3 + (1 << 24)) >> 25
-	h4 += carry[3]
-	h3 -= carry[3] << 25
-	carry[5] = (h5 + (1 << 24)) >> 25
-	h6 += carry[5]
-	h5 -= carry[5] << 25
-	carry[7] = (h7 + (1 << 24)) >> 25
-	h8 += carry[7]
-	h7 -= carry[7] << 25
-
-	carry[0] = (h0 + (1 << 25)) >> 26
-	h1 += carry[0]
-	h0 -= carry[0] << 26
-	carry[2] = (h2 + (1 << 25)) >> 26
-	h3 += carry[2]
-	h2 -= carry[2] << 26
-	carry[4] = (h4 + (1 << 25)) >> 26
-	h5 += carry[4]
-	h4 -= carry[4] << 26
-	carry[6] = (h6 + (1 << 25)) >> 26
-	h7 += carry[6]
-	h6 -= carry[6] << 26
-	carry[8] = (h8 + (1 << 25)) >> 26
-	h9 += carry[8]
-	h8 -= carry[8] << 26
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// feInvert sets out = z^-1.
-func feInvert(out, z *fieldElement) {
-	var t0, t1, t2, t3 fieldElement
-	var i int
-
-	feSquare(&t0, z)
-	for i = 1; i < 1; i++ {
-		feSquare(&t0, &t0)
-	}
-	feSquare(&t1, &t0)
-	for i = 1; i < 2; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(&t1, z, &t1)
-	feMul(&t0, &t0, &t1)
-	feSquare(&t2, &t0)
-	for i = 1; i < 1; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t1, &t2)
-	feSquare(&t2, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 20; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 10; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t2, &t1)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t2, &t2, &t1)
-	feSquare(&t3, &t2)
-	for i = 1; i < 100; i++ {
-		feSquare(&t3, &t3)
-	}
-	feMul(&t2, &t3, &t2)
-	feSquare(&t2, &t2)
-	for i = 1; i < 50; i++ {
-		feSquare(&t2, &t2)
-	}
-	feMul(&t1, &t2, &t1)
-	feSquare(&t1, &t1)
-	for i = 1; i < 5; i++ {
-		feSquare(&t1, &t1)
-	}
-	feMul(out, &t1, &t0)
-}
-
-func scalarMult(out, in, base *[32]byte) {
-	var e [32]byte
-
-	copy(e[:], in[:])
-	e[0] &= 248
-	e[31] &= 127
-	e[31] |= 64
-
-	var x1, x2, z2, x3, z3, tmp0, tmp1 fieldElement
-	feFromBytes(&x1, base)
-	feOne(&x2)
-	feCopy(&x3, &x1)
-	feOne(&z3)
-
-	swap := int32(0)
-	for pos := 254; pos >= 0; pos-- {
-		b := e[pos/8] >> uint(pos&7)
-		b &= 1
-		swap ^= int32(b)
-		feCSwap(&x2, &x3, swap)
-		feCSwap(&z2, &z3, swap)
-		swap = int32(b)
-
-		feSub(&tmp0, &x3, &z3)
-		feSub(&tmp1, &x2, &z2)
-		feAdd(&x2, &x2, &z2)
-		feAdd(&z2, &x3, &z3)
-		feMul(&z3, &tmp0, &x2)
-		feMul(&z2, &z2, &tmp1)
-		feSquare(&tmp0, &tmp1)
-		feSquare(&tmp1, &x2)
-		feAdd(&x3, &z3, &z2)
-		feSub(&z2, &z3, &z2)
-		feMul(&x2, &tmp1, &tmp0)
-		feSub(&tmp1, &tmp1, &tmp0)
-		feSquare(&z2, &z2)
-		feMul121666(&z3, &tmp1)
-		feSquare(&x3, &x3)
-		feAdd(&tmp0, &tmp0, &z3)
-		feMul(&z3, &x1, &z2)
-		feMul(&z2, &tmp1, &tmp0)
-	}
-
-	feCSwap(&x2, &x3, swap)
-	feCSwap(&z2, &z3, swap)
-
-	feInvert(&z2, &z2)
-	feMul(&x2, &x2, &z2)
-	feToBytes(out, &x2)
-}
diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519_test.go b/vendor/golang.org/x/crypto/curve25519/curve25519_test.go
deleted file mode 100644
index 051a830..0000000
--- a/vendor/golang.org/x/crypto/curve25519/curve25519_test.go
+++ /dev/null
@@ -1,39 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package curve25519
-
-import (
-	"fmt"
-	"testing"
-)
-
-const expectedHex = "89161fde887b2b53de549af483940106ecc114d6982daa98256de23bdf77661a"
-
-func TestBaseScalarMult(t *testing.T) {
-	var a, b [32]byte
-	in := &a
-	out := &b
-	a[0] = 1
-
-	for i := 0; i < 200; i++ {
-		ScalarBaseMult(out, in)
-		in, out = out, in
-	}
-
-	result := fmt.Sprintf("%x", in[:])
-	if result != expectedHex {
-		t.Errorf("incorrect result: got %s, want %s", result, expectedHex)
-	}
-}
-
-func BenchmarkScalarBaseMult(b *testing.B) {
-	var in, out [32]byte
-	in[0] = 1
-
-	b.SetBytes(32)
-	for i := 0; i < b.N; i++ {
-		ScalarBaseMult(&out, &in)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/curve25519/doc.go b/vendor/golang.org/x/crypto/curve25519/doc.go
deleted file mode 100644
index da9b10d..0000000
--- a/vendor/golang.org/x/crypto/curve25519/doc.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package curve25519 provides an implementation of scalar multiplication on
-// the elliptic curve known as curve25519. See https://cr.yp.to/ecdh.html
-package curve25519 // import "golang.org/x/crypto/curve25519"
-
-// basePoint is the x coordinate of the generator of the curve.
-var basePoint = [32]byte{9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
-
-// ScalarMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points and all values are in little-endian form.
-func ScalarMult(dst, in, base *[32]byte) {
-	scalarMult(dst, in, base)
-}
-
-// ScalarBaseMult sets dst to the product in*base where dst and base are the x
-// coordinates of group points, base is the standard generator and all values
-// are in little-endian form.
-func ScalarBaseMult(dst, in *[32]byte) {
-	ScalarMult(dst, in, &basePoint)
-}
diff --git a/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s b/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
deleted file mode 100644
index 3908161..0000000
--- a/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-#include "const_amd64.h"
-
-// func freeze(inout *[5]uint64)
-TEXT ·freeze(SB),7,$0-8
-	MOVQ inout+0(FP), DI
-
-	MOVQ 0(DI),SI
-	MOVQ 8(DI),DX
-	MOVQ 16(DI),CX
-	MOVQ 24(DI),R8
-	MOVQ 32(DI),R9
-	MOVQ $REDMASK51,AX
-	MOVQ AX,R10
-	SUBQ $18,R10
-	MOVQ $3,R11
-REDUCELOOP:
-	MOVQ SI,R12
-	SHRQ $51,R12
-	ANDQ AX,SI
-	ADDQ R12,DX
-	MOVQ DX,R12
-	SHRQ $51,R12
-	ANDQ AX,DX
-	ADDQ R12,CX
-	MOVQ CX,R12
-	SHRQ $51,R12
-	ANDQ AX,CX
-	ADDQ R12,R8
-	MOVQ R8,R12
-	SHRQ $51,R12
-	ANDQ AX,R8
-	ADDQ R12,R9
-	MOVQ R9,R12
-	SHRQ $51,R12
-	ANDQ AX,R9
-	IMUL3Q $19,R12,R12
-	ADDQ R12,SI
-	SUBQ $1,R11
-	JA REDUCELOOP
-	MOVQ $1,R12
-	CMPQ R10,SI
-	CMOVQLT R11,R12
-	CMPQ AX,DX
-	CMOVQNE R11,R12
-	CMPQ AX,CX
-	CMOVQNE R11,R12
-	CMPQ AX,R8
-	CMOVQNE R11,R12
-	CMPQ AX,R9
-	CMOVQNE R11,R12
-	NEGQ R12
-	ANDQ R12,AX
-	ANDQ R12,R10
-	SUBQ R10,SI
-	SUBQ AX,DX
-	SUBQ AX,CX
-	SUBQ AX,R8
-	SUBQ AX,R9
-	MOVQ SI,0(DI)
-	MOVQ DX,8(DI)
-	MOVQ CX,16(DI)
-	MOVQ R8,24(DI)
-	MOVQ R9,32(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s b/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
deleted file mode 100644
index 9e9040b..0000000
--- a/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
+++ /dev/null
@@ -1,1377 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-#include "const_amd64.h"
-
-// func ladderstep(inout *[5][5]uint64)
-TEXT ·ladderstep(SB),0,$296-8
-	MOVQ inout+0(FP),DI
-
-	MOVQ 40(DI),SI
-	MOVQ 48(DI),DX
-	MOVQ 56(DI),CX
-	MOVQ 64(DI),R8
-	MOVQ 72(DI),R9
-	MOVQ SI,AX
-	MOVQ DX,R10
-	MOVQ CX,R11
-	MOVQ R8,R12
-	MOVQ R9,R13
-	ADDQ ·_2P0(SB),AX
-	ADDQ ·_2P1234(SB),R10
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 80(DI),SI
-	ADDQ 88(DI),DX
-	ADDQ 96(DI),CX
-	ADDQ 104(DI),R8
-	ADDQ 112(DI),R9
-	SUBQ 80(DI),AX
-	SUBQ 88(DI),R10
-	SUBQ 96(DI),R11
-	SUBQ 104(DI),R12
-	SUBQ 112(DI),R13
-	MOVQ SI,0(SP)
-	MOVQ DX,8(SP)
-	MOVQ CX,16(SP)
-	MOVQ R8,24(SP)
-	MOVQ R9,32(SP)
-	MOVQ AX,40(SP)
-	MOVQ R10,48(SP)
-	MOVQ R11,56(SP)
-	MOVQ R12,64(SP)
-	MOVQ R13,72(SP)
-	MOVQ 40(SP),AX
-	MULQ 40(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 48(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 56(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 64(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 40(SP),AX
-	SHLQ $1,AX
-	MULQ 72(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 48(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 48(SP),AX
-	SHLQ $1,AX
-	MULQ 56(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 48(SP),AX
-	SHLQ $1,AX
-	MULQ 64(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 48(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 56(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 56(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 56(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 64(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 64(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 72(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,80(SP)
-	MOVQ R8,88(SP)
-	MOVQ R9,96(SP)
-	MOVQ AX,104(SP)
-	MOVQ R10,112(SP)
-	MOVQ 0(SP),AX
-	MULQ 0(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 8(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 16(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 24(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 0(SP),AX
-	SHLQ $1,AX
-	MULQ 32(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	SHLQ $1,AX
-	MULQ 16(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SP),AX
-	SHLQ $1,AX
-	MULQ 24(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 16(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 16(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 16(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 24(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 24(SP),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 32(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,120(SP)
-	MOVQ R8,128(SP)
-	MOVQ R9,136(SP)
-	MOVQ AX,144(SP)
-	MOVQ R10,152(SP)
-	MOVQ SI,SI
-	MOVQ R8,DX
-	MOVQ R9,CX
-	MOVQ AX,R8
-	MOVQ R10,R9
-	ADDQ ·_2P0(SB),SI
-	ADDQ ·_2P1234(SB),DX
-	ADDQ ·_2P1234(SB),CX
-	ADDQ ·_2P1234(SB),R8
-	ADDQ ·_2P1234(SB),R9
-	SUBQ 80(SP),SI
-	SUBQ 88(SP),DX
-	SUBQ 96(SP),CX
-	SUBQ 104(SP),R8
-	SUBQ 112(SP),R9
-	MOVQ SI,160(SP)
-	MOVQ DX,168(SP)
-	MOVQ CX,176(SP)
-	MOVQ R8,184(SP)
-	MOVQ R9,192(SP)
-	MOVQ 120(DI),SI
-	MOVQ 128(DI),DX
-	MOVQ 136(DI),CX
-	MOVQ 144(DI),R8
-	MOVQ 152(DI),R9
-	MOVQ SI,AX
-	MOVQ DX,R10
-	MOVQ CX,R11
-	MOVQ R8,R12
-	MOVQ R9,R13
-	ADDQ ·_2P0(SB),AX
-	ADDQ ·_2P1234(SB),R10
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 160(DI),SI
-	ADDQ 168(DI),DX
-	ADDQ 176(DI),CX
-	ADDQ 184(DI),R8
-	ADDQ 192(DI),R9
-	SUBQ 160(DI),AX
-	SUBQ 168(DI),R10
-	SUBQ 176(DI),R11
-	SUBQ 184(DI),R12
-	SUBQ 192(DI),R13
-	MOVQ SI,200(SP)
-	MOVQ DX,208(SP)
-	MOVQ CX,216(SP)
-	MOVQ R8,224(SP)
-	MOVQ R9,232(SP)
-	MOVQ AX,240(SP)
-	MOVQ R10,248(SP)
-	MOVQ R11,256(SP)
-	MOVQ R12,264(SP)
-	MOVQ R13,272(SP)
-	MOVQ 224(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,280(SP)
-	MULQ 56(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 232(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,288(SP)
-	MULQ 48(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 200(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 200(SP),AX
-	MULQ 48(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 200(SP),AX
-	MULQ 56(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 200(SP),AX
-	MULQ 64(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 200(SP),AX
-	MULQ 72(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 208(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 208(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 208(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 208(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 208(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 216(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 216(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 216(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 216(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 64(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 216(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 72(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 224(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 224(SP),AX
-	MULQ 48(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 280(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 280(SP),AX
-	MULQ 72(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 232(SP),AX
-	MULQ 40(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 288(SP),AX
-	MULQ 56(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 288(SP),AX
-	MULQ 64(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 288(SP),AX
-	MULQ 72(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,40(SP)
-	MOVQ R8,48(SP)
-	MOVQ R9,56(SP)
-	MOVQ AX,64(SP)
-	MOVQ R10,72(SP)
-	MOVQ 264(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,200(SP)
-	MULQ 16(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 272(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,208(SP)
-	MULQ 8(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 240(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 240(SP),AX
-	MULQ 8(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 240(SP),AX
-	MULQ 16(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 240(SP),AX
-	MULQ 24(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 240(SP),AX
-	MULQ 32(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 248(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 248(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 248(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 248(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 248(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 256(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 256(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 256(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 256(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 256(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 264(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 264(SP),AX
-	MULQ 8(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 200(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 200(SP),AX
-	MULQ 32(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 272(SP),AX
-	MULQ 0(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 208(SP),AX
-	MULQ 16(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 208(SP),AX
-	MULQ 24(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 208(SP),AX
-	MULQ 32(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,DX
-	MOVQ R8,CX
-	MOVQ R9,R11
-	MOVQ AX,R12
-	MOVQ R10,R13
-	ADDQ ·_2P0(SB),DX
-	ADDQ ·_2P1234(SB),CX
-	ADDQ ·_2P1234(SB),R11
-	ADDQ ·_2P1234(SB),R12
-	ADDQ ·_2P1234(SB),R13
-	ADDQ 40(SP),SI
-	ADDQ 48(SP),R8
-	ADDQ 56(SP),R9
-	ADDQ 64(SP),AX
-	ADDQ 72(SP),R10
-	SUBQ 40(SP),DX
-	SUBQ 48(SP),CX
-	SUBQ 56(SP),R11
-	SUBQ 64(SP),R12
-	SUBQ 72(SP),R13
-	MOVQ SI,120(DI)
-	MOVQ R8,128(DI)
-	MOVQ R9,136(DI)
-	MOVQ AX,144(DI)
-	MOVQ R10,152(DI)
-	MOVQ DX,160(DI)
-	MOVQ CX,168(DI)
-	MOVQ R11,176(DI)
-	MOVQ R12,184(DI)
-	MOVQ R13,192(DI)
-	MOVQ 120(DI),AX
-	MULQ 120(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 128(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 136(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 144(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 120(DI),AX
-	SHLQ $1,AX
-	MULQ 152(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 128(DI),AX
-	MULQ 128(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 128(DI),AX
-	SHLQ $1,AX
-	MULQ 136(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 128(DI),AX
-	SHLQ $1,AX
-	MULQ 144(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 128(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(DI),AX
-	MULQ 136(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 136(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 144(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 144(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 152(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 152(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,120(DI)
-	MOVQ R8,128(DI)
-	MOVQ R9,136(DI)
-	MOVQ AX,144(DI)
-	MOVQ R10,152(DI)
-	MOVQ 160(DI),AX
-	MULQ 160(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 168(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 176(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 184(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 160(DI),AX
-	SHLQ $1,AX
-	MULQ 192(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 168(DI),AX
-	MULQ 168(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 168(DI),AX
-	SHLQ $1,AX
-	MULQ 176(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 168(DI),AX
-	SHLQ $1,AX
-	MULQ 184(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 168(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),AX
-	MULQ 176(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 176(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 184(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 184(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 192(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	ANDQ DX,SI
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ADDQ R10,CX
-	ANDQ DX,R8
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ADDQ R12,CX
-	ANDQ DX,R9
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ADDQ R14,CX
-	ANDQ DX,AX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,160(DI)
-	MOVQ R8,168(DI)
-	MOVQ R9,176(DI)
-	MOVQ AX,184(DI)
-	MOVQ R10,192(DI)
-	MOVQ 184(DI),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 16(DI)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 192(DI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 8(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 160(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 160(DI),AX
-	MULQ 8(DI)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 160(DI),AX
-	MULQ 16(DI)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 160(DI),AX
-	MULQ 24(DI)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 160(DI),AX
-	MULQ 32(DI)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 168(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 168(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 168(DI),AX
-	MULQ 16(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 168(DI),AX
-	MULQ 24(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 168(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 176(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 176(DI),AX
-	MULQ 16(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 176(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(DI)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 176(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 184(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 184(DI),AX
-	MULQ 8(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 24(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 32(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 192(DI),AX
-	MULQ 0(DI)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 16(DI)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 24(DI)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 32(DI)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,160(DI)
-	MOVQ R8,168(DI)
-	MOVQ R9,176(DI)
-	MOVQ AX,184(DI)
-	MOVQ R10,192(DI)
-	MOVQ 144(SP),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 96(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 152(SP),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 88(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 120(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 120(SP),AX
-	MULQ 88(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 120(SP),AX
-	MULQ 96(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 120(SP),AX
-	MULQ 104(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 120(SP),AX
-	MULQ 112(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 128(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 128(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 128(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 128(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 128(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 112(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 136(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 136(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 136(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 104(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 136(SP),DX
-	IMUL3Q $19,DX,AX
-	MULQ 112(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 144(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 144(SP),AX
-	MULQ 88(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 112(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 152(SP),AX
-	MULQ 80(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 96(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 104(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 112(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,40(DI)
-	MOVQ R8,48(DI)
-	MOVQ R9,56(DI)
-	MOVQ AX,64(DI)
-	MOVQ R10,72(DI)
-	MOVQ 160(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 168(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,CX
-	MOVQ DX,R8
-	MOVQ 176(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R8
-	MOVQ DX,R9
-	MOVQ 184(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R9
-	MOVQ DX,R10
-	MOVQ 192(SP),AX
-	MULQ ·_121666_213(SB)
-	SHRQ $13,AX
-	ADDQ AX,R10
-	IMUL3Q $19,DX,DX
-	ADDQ DX,SI
-	ADDQ 80(SP),SI
-	ADDQ 88(SP),CX
-	ADDQ 96(SP),R8
-	ADDQ 104(SP),R9
-	ADDQ 112(SP),R10
-	MOVQ SI,80(DI)
-	MOVQ CX,88(DI)
-	MOVQ R8,96(DI)
-	MOVQ R9,104(DI)
-	MOVQ R10,112(DI)
-	MOVQ 104(DI),SI
-	IMUL3Q $19,SI,AX
-	MOVQ AX,0(SP)
-	MULQ 176(SP)
-	MOVQ AX,SI
-	MOVQ DX,CX
-	MOVQ 112(DI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 168(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 80(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 80(DI),AX
-	MULQ 168(SP)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 80(DI),AX
-	MULQ 176(SP)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 80(DI),AX
-	MULQ 184(SP)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 80(DI),AX
-	MULQ 192(SP)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 88(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 88(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 88(DI),AX
-	MULQ 176(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 88(DI),AX
-	MULQ 184(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 88(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 96(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 96(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 96(DI),AX
-	MULQ 176(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 96(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 184(SP)
-	ADDQ AX,SI
-	ADCQ DX,CX
-	MOVQ 96(DI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 192(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 104(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 104(DI),AX
-	MULQ 168(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 0(SP),AX
-	MULQ 184(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SP),AX
-	MULQ 192(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 112(DI),AX
-	MULQ 160(SP)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SP),AX
-	MULQ 176(SP)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 8(SP),AX
-	MULQ 184(SP)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 192(SP)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
-	ANDQ DX,SI
-	SHLQ $13,R9:R8
-	ANDQ DX,R8
-	ADDQ CX,R8
-	SHLQ $13,R11:R10
-	ANDQ DX,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ DX,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ DX,R14
-	ADDQ R13,R14
-	IMUL3Q $19,R15,CX
-	ADDQ CX,SI
-	MOVQ SI,CX
-	SHRQ $51,CX
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $51,CX
-	ANDQ DX,SI
-	ADDQ R10,CX
-	MOVQ CX,R9
-	SHRQ $51,CX
-	ANDQ DX,R8
-	ADDQ R12,CX
-	MOVQ CX,AX
-	SHRQ $51,CX
-	ANDQ DX,R9
-	ADDQ R14,CX
-	MOVQ CX,R10
-	SHRQ $51,CX
-	ANDQ DX,AX
-	IMUL3Q $19,CX,CX
-	ADDQ CX,SI
-	ANDQ DX,R10
-	MOVQ SI,80(DI)
-	MOVQ R8,88(DI)
-	MOVQ R9,96(DI)
-	MOVQ AX,104(DI)
-	MOVQ R10,112(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go b/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go
deleted file mode 100644
index 5822bd5..0000000
--- a/vendor/golang.org/x/crypto/curve25519/mont25519_amd64.go
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-package curve25519
-
-// These functions are implemented in the .s files. The names of the functions
-// in the rest of the file are also taken from the SUPERCOP sources to help
-// people following along.
-
-//go:noescape
-
-func cswap(inout *[5]uint64, v uint64)
-
-//go:noescape
-
-func ladderstep(inout *[5][5]uint64)
-
-//go:noescape
-
-func freeze(inout *[5]uint64)
-
-//go:noescape
-
-func mul(dest, a, b *[5]uint64)
-
-//go:noescape
-
-func square(out, in *[5]uint64)
-
-// mladder uses a Montgomery ladder to calculate (xr/zr) *= s.
-func mladder(xr, zr *[5]uint64, s *[32]byte) {
-	var work [5][5]uint64
-
-	work[0] = *xr
-	setint(&work[1], 1)
-	setint(&work[2], 0)
-	work[3] = *xr
-	setint(&work[4], 1)
-
-	j := uint(6)
-	var prevbit byte
-
-	for i := 31; i >= 0; i-- {
-		for j < 8 {
-			bit := ((*s)[i] >> j) & 1
-			swap := bit ^ prevbit
-			prevbit = bit
-			cswap(&work[1], uint64(swap))
-			ladderstep(&work)
-			j--
-		}
-		j = 7
-	}
-
-	*xr = work[1]
-	*zr = work[2]
-}
-
-func scalarMult(out, in, base *[32]byte) {
-	var e [32]byte
-	copy(e[:], (*in)[:])
-	e[0] &= 248
-	e[31] &= 127
-	e[31] |= 64
-
-	var t, z [5]uint64
-	unpack(&t, base)
-	mladder(&t, &z, &e)
-	invert(&z, &z)
-	mul(&t, &t, &z)
-	pack(out, &t)
-}
-
-func setint(r *[5]uint64, v uint64) {
-	r[0] = v
-	r[1] = 0
-	r[2] = 0
-	r[3] = 0
-	r[4] = 0
-}
-
-// unpack sets r = x where r consists of 5, 51-bit limbs in little-endian
-// order.
-func unpack(r *[5]uint64, x *[32]byte) {
-	r[0] = uint64(x[0]) |
-		uint64(x[1])<<8 |
-		uint64(x[2])<<16 |
-		uint64(x[3])<<24 |
-		uint64(x[4])<<32 |
-		uint64(x[5])<<40 |
-		uint64(x[6]&7)<<48
-
-	r[1] = uint64(x[6])>>3 |
-		uint64(x[7])<<5 |
-		uint64(x[8])<<13 |
-		uint64(x[9])<<21 |
-		uint64(x[10])<<29 |
-		uint64(x[11])<<37 |
-		uint64(x[12]&63)<<45
-
-	r[2] = uint64(x[12])>>6 |
-		uint64(x[13])<<2 |
-		uint64(x[14])<<10 |
-		uint64(x[15])<<18 |
-		uint64(x[16])<<26 |
-		uint64(x[17])<<34 |
-		uint64(x[18])<<42 |
-		uint64(x[19]&1)<<50
-
-	r[3] = uint64(x[19])>>1 |
-		uint64(x[20])<<7 |
-		uint64(x[21])<<15 |
-		uint64(x[22])<<23 |
-		uint64(x[23])<<31 |
-		uint64(x[24])<<39 |
-		uint64(x[25]&15)<<47
-
-	r[4] = uint64(x[25])>>4 |
-		uint64(x[26])<<4 |
-		uint64(x[27])<<12 |
-		uint64(x[28])<<20 |
-		uint64(x[29])<<28 |
-		uint64(x[30])<<36 |
-		uint64(x[31]&127)<<44
-}
-
-// pack sets out = x where out is the usual, little-endian form of the 5,
-// 51-bit limbs in x.
-func pack(out *[32]byte, x *[5]uint64) {
-	t := *x
-	freeze(&t)
-
-	out[0] = byte(t[0])
-	out[1] = byte(t[0] >> 8)
-	out[2] = byte(t[0] >> 16)
-	out[3] = byte(t[0] >> 24)
-	out[4] = byte(t[0] >> 32)
-	out[5] = byte(t[0] >> 40)
-	out[6] = byte(t[0] >> 48)
-
-	out[6] ^= byte(t[1]<<3) & 0xf8
-	out[7] = byte(t[1] >> 5)
-	out[8] = byte(t[1] >> 13)
-	out[9] = byte(t[1] >> 21)
-	out[10] = byte(t[1] >> 29)
-	out[11] = byte(t[1] >> 37)
-	out[12] = byte(t[1] >> 45)
-
-	out[12] ^= byte(t[2]<<6) & 0xc0
-	out[13] = byte(t[2] >> 2)
-	out[14] = byte(t[2] >> 10)
-	out[15] = byte(t[2] >> 18)
-	out[16] = byte(t[2] >> 26)
-	out[17] = byte(t[2] >> 34)
-	out[18] = byte(t[2] >> 42)
-	out[19] = byte(t[2] >> 50)
-
-	out[19] ^= byte(t[3]<<1) & 0xfe
-	out[20] = byte(t[3] >> 7)
-	out[21] = byte(t[3] >> 15)
-	out[22] = byte(t[3] >> 23)
-	out[23] = byte(t[3] >> 31)
-	out[24] = byte(t[3] >> 39)
-	out[25] = byte(t[3] >> 47)
-
-	out[25] ^= byte(t[4]<<4) & 0xf0
-	out[26] = byte(t[4] >> 4)
-	out[27] = byte(t[4] >> 12)
-	out[28] = byte(t[4] >> 20)
-	out[29] = byte(t[4] >> 28)
-	out[30] = byte(t[4] >> 36)
-	out[31] = byte(t[4] >> 44)
-}
-
-// invert calculates r = x^-1 mod p using Fermat's little theorem.
-func invert(r *[5]uint64, x *[5]uint64) {
-	var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t [5]uint64
-
-	square(&z2, x)        /* 2 */
-	square(&t, &z2)       /* 4 */
-	square(&t, &t)        /* 8 */
-	mul(&z9, &t, x)       /* 9 */
-	mul(&z11, &z9, &z2)   /* 11 */
-	square(&t, &z11)      /* 22 */
-	mul(&z2_5_0, &t, &z9) /* 2^5 - 2^0 = 31 */
-
-	square(&t, &z2_5_0)      /* 2^6 - 2^1 */
-	for i := 1; i < 5; i++ { /* 2^20 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_10_0, &t, &z2_5_0) /* 2^10 - 2^0 */
-
-	square(&t, &z2_10_0)      /* 2^11 - 2^1 */
-	for i := 1; i < 10; i++ { /* 2^20 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_20_0, &t, &z2_10_0) /* 2^20 - 2^0 */
-
-	square(&t, &z2_20_0)      /* 2^21 - 2^1 */
-	for i := 1; i < 20; i++ { /* 2^40 - 2^20 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_20_0) /* 2^40 - 2^0 */
-
-	square(&t, &t)            /* 2^41 - 2^1 */
-	for i := 1; i < 10; i++ { /* 2^50 - 2^10 */
-		square(&t, &t)
-	}
-	mul(&z2_50_0, &t, &z2_10_0) /* 2^50 - 2^0 */
-
-	square(&t, &z2_50_0)      /* 2^51 - 2^1 */
-	for i := 1; i < 50; i++ { /* 2^100 - 2^50 */
-		square(&t, &t)
-	}
-	mul(&z2_100_0, &t, &z2_50_0) /* 2^100 - 2^0 */
-
-	square(&t, &z2_100_0)      /* 2^101 - 2^1 */
-	for i := 1; i < 100; i++ { /* 2^200 - 2^100 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_100_0) /* 2^200 - 2^0 */
-
-	square(&t, &t)            /* 2^201 - 2^1 */
-	for i := 1; i < 50; i++ { /* 2^250 - 2^50 */
-		square(&t, &t)
-	}
-	mul(&t, &t, &z2_50_0) /* 2^250 - 2^0 */
-
-	square(&t, &t) /* 2^251 - 2^1 */
-	square(&t, &t) /* 2^252 - 2^2 */
-	square(&t, &t) /* 2^253 - 2^3 */
-
-	square(&t, &t) /* 2^254 - 2^4 */
-
-	square(&t, &t)   /* 2^255 - 2^5 */
-	mul(r, &t, &z11) /* 2^255 - 21 */
-}
diff --git a/vendor/golang.org/x/crypto/curve25519/mul_amd64.s b/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
deleted file mode 100644
index 5ce80a2..0000000
--- a/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
+++ /dev/null
@@ -1,169 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-#include "const_amd64.h"
-
-// func mul(dest, a, b *[5]uint64)
-TEXT ·mul(SB),0,$16-24
-	MOVQ dest+0(FP), DI
-	MOVQ a+8(FP), SI
-	MOVQ b+16(FP), DX
-
-	MOVQ DX,CX
-	MOVQ 24(SI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,0(SP)
-	MULQ 16(CX)
-	MOVQ AX,R8
-	MOVQ DX,R9
-	MOVQ 32(SI),DX
-	IMUL3Q $19,DX,AX
-	MOVQ AX,8(SP)
-	MULQ 8(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 0(SI),AX
-	MULQ 8(CX)
-	MOVQ AX,R10
-	MOVQ DX,R11
-	MOVQ 0(SI),AX
-	MULQ 16(CX)
-	MOVQ AX,R12
-	MOVQ DX,R13
-	MOVQ 0(SI),AX
-	MULQ 24(CX)
-	MOVQ AX,R14
-	MOVQ DX,R15
-	MOVQ 0(SI),AX
-	MULQ 32(CX)
-	MOVQ AX,BX
-	MOVQ DX,BP
-	MOVQ 8(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SI),AX
-	MULQ 16(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 8(SI),AX
-	MULQ 24(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 8(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 16(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 16(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 16(SI),AX
-	MULQ 16(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 16(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(CX)
-	ADDQ AX,R8
-	ADCQ DX,R9
-	MOVQ 16(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 24(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ 24(SI),AX
-	MULQ 8(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 0(SP),AX
-	MULQ 24(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 0(SP),AX
-	MULQ 32(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 32(SI),AX
-	MULQ 0(CX)
-	ADDQ AX,BX
-	ADCQ DX,BP
-	MOVQ 8(SP),AX
-	MULQ 16(CX)
-	ADDQ AX,R10
-	ADCQ DX,R11
-	MOVQ 8(SP),AX
-	MULQ 24(CX)
-	ADDQ AX,R12
-	ADCQ DX,R13
-	MOVQ 8(SP),AX
-	MULQ 32(CX)
-	ADDQ AX,R14
-	ADCQ DX,R15
-	MOVQ $REDMASK51,SI
-	SHLQ $13,R9:R8
-	ANDQ SI,R8
-	SHLQ $13,R11:R10
-	ANDQ SI,R10
-	ADDQ R9,R10
-	SHLQ $13,R13:R12
-	ANDQ SI,R12
-	ADDQ R11,R12
-	SHLQ $13,R15:R14
-	ANDQ SI,R14
-	ADDQ R13,R14
-	SHLQ $13,BP:BX
-	ANDQ SI,BX
-	ADDQ R15,BX
-	IMUL3Q $19,BP,DX
-	ADDQ DX,R8
-	MOVQ R8,DX
-	SHRQ $51,DX
-	ADDQ R10,DX
-	MOVQ DX,CX
-	SHRQ $51,DX
-	ANDQ SI,R8
-	ADDQ R12,DX
-	MOVQ DX,R9
-	SHRQ $51,DX
-	ANDQ SI,CX
-	ADDQ R14,DX
-	MOVQ DX,AX
-	SHRQ $51,DX
-	ANDQ SI,R9
-	ADDQ BX,DX
-	MOVQ DX,R10
-	SHRQ $51,DX
-	ANDQ SI,AX
-	IMUL3Q $19,DX,DX
-	ADDQ DX,R8
-	ANDQ SI,R10
-	MOVQ R8,0(DI)
-	MOVQ CX,8(DI)
-	MOVQ R9,16(DI)
-	MOVQ AX,24(DI)
-	MOVQ R10,32(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/curve25519/square_amd64.s b/vendor/golang.org/x/crypto/curve25519/square_amd64.s
deleted file mode 100644
index 12f7373..0000000
--- a/vendor/golang.org/x/crypto/curve25519/square_amd64.s
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// +build amd64,!gccgo,!appengine
-
-#include "const_amd64.h"
-
-// func square(out, in *[5]uint64)
-TEXT ·square(SB),7,$0-16
-	MOVQ out+0(FP), DI
-	MOVQ in+8(FP), SI
-
-	MOVQ 0(SI),AX
-	MULQ 0(SI)
-	MOVQ AX,CX
-	MOVQ DX,R8
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 8(SI)
-	MOVQ AX,R9
-	MOVQ DX,R10
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 16(SI)
-	MOVQ AX,R11
-	MOVQ DX,R12
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 24(SI)
-	MOVQ AX,R13
-	MOVQ DX,R14
-	MOVQ 0(SI),AX
-	SHLQ $1,AX
-	MULQ 32(SI)
-	MOVQ AX,R15
-	MOVQ DX,BX
-	MOVQ 8(SI),AX
-	MULQ 8(SI)
-	ADDQ AX,R11
-	ADCQ DX,R12
-	MOVQ 8(SI),AX
-	SHLQ $1,AX
-	MULQ 16(SI)
-	ADDQ AX,R13
-	ADCQ DX,R14
-	MOVQ 8(SI),AX
-	SHLQ $1,AX
-	MULQ 24(SI)
-	ADDQ AX,R15
-	ADCQ DX,BX
-	MOVQ 8(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,CX
-	ADCQ DX,R8
-	MOVQ 16(SI),AX
-	MULQ 16(SI)
-	ADDQ AX,R15
-	ADCQ DX,BX
-	MOVQ 16(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 24(SI)
-	ADDQ AX,CX
-	ADCQ DX,R8
-	MOVQ 16(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R9
-	ADCQ DX,R10
-	MOVQ 24(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 24(SI)
-	ADDQ AX,R9
-	ADCQ DX,R10
-	MOVQ 24(SI),DX
-	IMUL3Q $38,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R11
-	ADCQ DX,R12
-	MOVQ 32(SI),DX
-	IMUL3Q $19,DX,AX
-	MULQ 32(SI)
-	ADDQ AX,R13
-	ADCQ DX,R14
-	MOVQ $REDMASK51,SI
-	SHLQ $13,R8:CX
-	ANDQ SI,CX
-	SHLQ $13,R10:R9
-	ANDQ SI,R9
-	ADDQ R8,R9
-	SHLQ $13,R12:R11
-	ANDQ SI,R11
-	ADDQ R10,R11
-	SHLQ $13,R14:R13
-	ANDQ SI,R13
-	ADDQ R12,R13
-	SHLQ $13,BX:R15
-	ANDQ SI,R15
-	ADDQ R14,R15
-	IMUL3Q $19,BX,DX
-	ADDQ DX,CX
-	MOVQ CX,DX
-	SHRQ $51,DX
-	ADDQ R9,DX
-	ANDQ SI,CX
-	MOVQ DX,R8
-	SHRQ $51,DX
-	ADDQ R11,DX
-	ANDQ SI,R8
-	MOVQ DX,R9
-	SHRQ $51,DX
-	ADDQ R13,DX
-	ANDQ SI,R9
-	MOVQ DX,AX
-	SHRQ $51,DX
-	ADDQ R15,DX
-	ANDQ SI,AX
-	MOVQ DX,R10
-	SHRQ $51,DX
-	IMUL3Q $19,DX,DX
-	ADDQ DX,CX
-	ANDQ SI,R10
-	MOVQ CX,0(DI)
-	MOVQ R8,8(DI)
-	MOVQ R9,16(DI)
-	MOVQ AX,24(DI)
-	MOVQ R10,32(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/ed25519/ed25519.go b/vendor/golang.org/x/crypto/ed25519/ed25519.go
deleted file mode 100644
index d6f683b..0000000
--- a/vendor/golang.org/x/crypto/ed25519/ed25519.go
+++ /dev/null
@@ -1,217 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ed25519 implements the Ed25519 signature algorithm. See
-// https://ed25519.cr.yp.to/.
-//
-// These functions are also compatible with the “Ed25519” function defined in
-// RFC 8032. However, unlike RFC 8032's formulation, this package's private key
-// representation includes a public key suffix to make multiple signing
-// operations with the same key more efficient. This package refers to the RFC
-// 8032 private key as the “seed”.
-package ed25519
-
-// This code is a port of the public domain, “ref10” implementation of ed25519
-// from SUPERCOP.
-
-import (
-	"bytes"
-	"crypto"
-	cryptorand "crypto/rand"
-	"crypto/sha512"
-	"errors"
-	"io"
-	"strconv"
-
-	"golang.org/x/crypto/ed25519/internal/edwards25519"
-)
-
-const (
-	// PublicKeySize is the size, in bytes, of public keys as used in this package.
-	PublicKeySize = 32
-	// PrivateKeySize is the size, in bytes, of private keys as used in this package.
-	PrivateKeySize = 64
-	// SignatureSize is the size, in bytes, of signatures generated and verified by this package.
-	SignatureSize = 64
-	// SeedSize is the size, in bytes, of private key seeds. These are the private key representations used by RFC 8032.
-	SeedSize = 32
-)
-
-// PublicKey is the type of Ed25519 public keys.
-type PublicKey []byte
-
-// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer.
-type PrivateKey []byte
-
-// Public returns the PublicKey corresponding to priv.
-func (priv PrivateKey) Public() crypto.PublicKey {
-	publicKey := make([]byte, PublicKeySize)
-	copy(publicKey, priv[32:])
-	return PublicKey(publicKey)
-}
-
-// Seed returns the private key seed corresponding to priv. It is provided for
-// interoperability with RFC 8032. RFC 8032's private keys correspond to seeds
-// in this package.
-func (priv PrivateKey) Seed() []byte {
-	seed := make([]byte, SeedSize)
-	copy(seed, priv[:32])
-	return seed
-}
-
-// Sign signs the given message with priv.
-// Ed25519 performs two passes over messages to be signed and therefore cannot
-// handle pre-hashed messages. Thus opts.HashFunc() must return zero to
-// indicate the message hasn't been hashed. This can be achieved by passing
-// crypto.Hash(0) as the value for opts.
-func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) {
-	if opts.HashFunc() != crypto.Hash(0) {
-		return nil, errors.New("ed25519: cannot sign hashed message")
-	}
-
-	return Sign(priv, message), nil
-}
-
-// GenerateKey generates a public/private key pair using entropy from rand.
-// If rand is nil, crypto/rand.Reader will be used.
-func GenerateKey(rand io.Reader) (PublicKey, PrivateKey, error) {
-	if rand == nil {
-		rand = cryptorand.Reader
-	}
-
-	seed := make([]byte, SeedSize)
-	if _, err := io.ReadFull(rand, seed); err != nil {
-		return nil, nil, err
-	}
-
-	privateKey := NewKeyFromSeed(seed)
-	publicKey := make([]byte, PublicKeySize)
-	copy(publicKey, privateKey[32:])
-
-	return publicKey, privateKey, nil
-}
-
-// NewKeyFromSeed calculates a private key from a seed. It will panic if
-// len(seed) is not SeedSize. This function is provided for interoperability
-// with RFC 8032. RFC 8032's private keys correspond to seeds in this
-// package.
-func NewKeyFromSeed(seed []byte) PrivateKey {
-	if l := len(seed); l != SeedSize {
-		panic("ed25519: bad seed length: " + strconv.Itoa(l))
-	}
-
-	digest := sha512.Sum512(seed)
-	digest[0] &= 248
-	digest[31] &= 127
-	digest[31] |= 64
-
-	var A edwards25519.ExtendedGroupElement
-	var hBytes [32]byte
-	copy(hBytes[:], digest[:])
-	edwards25519.GeScalarMultBase(&A, &hBytes)
-	var publicKeyBytes [32]byte
-	A.ToBytes(&publicKeyBytes)
-
-	privateKey := make([]byte, PrivateKeySize)
-	copy(privateKey, seed)
-	copy(privateKey[32:], publicKeyBytes[:])
-
-	return privateKey
-}
-
-// Sign signs the message with privateKey and returns a signature. It will
-// panic if len(privateKey) is not PrivateKeySize.
-func Sign(privateKey PrivateKey, message []byte) []byte {
-	if l := len(privateKey); l != PrivateKeySize {
-		panic("ed25519: bad private key length: " + strconv.Itoa(l))
-	}
-
-	h := sha512.New()
-	h.Write(privateKey[:32])
-
-	var digest1, messageDigest, hramDigest [64]byte
-	var expandedSecretKey [32]byte
-	h.Sum(digest1[:0])
-	copy(expandedSecretKey[:], digest1[:])
-	expandedSecretKey[0] &= 248
-	expandedSecretKey[31] &= 63
-	expandedSecretKey[31] |= 64
-
-	h.Reset()
-	h.Write(digest1[32:])
-	h.Write(message)
-	h.Sum(messageDigest[:0])
-
-	var messageDigestReduced [32]byte
-	edwards25519.ScReduce(&messageDigestReduced, &messageDigest)
-	var R edwards25519.ExtendedGroupElement
-	edwards25519.GeScalarMultBase(&R, &messageDigestReduced)
-
-	var encodedR [32]byte
-	R.ToBytes(&encodedR)
-
-	h.Reset()
-	h.Write(encodedR[:])
-	h.Write(privateKey[32:])
-	h.Write(message)
-	h.Sum(hramDigest[:0])
-	var hramDigestReduced [32]byte
-	edwards25519.ScReduce(&hramDigestReduced, &hramDigest)
-
-	var s [32]byte
-	edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced)
-
-	signature := make([]byte, SignatureSize)
-	copy(signature[:], encodedR[:])
-	copy(signature[32:], s[:])
-
-	return signature
-}
-
-// Verify reports whether sig is a valid signature of message by publicKey. It
-// will panic if len(publicKey) is not PublicKeySize.
-func Verify(publicKey PublicKey, message, sig []byte) bool {
-	if l := len(publicKey); l != PublicKeySize {
-		panic("ed25519: bad public key length: " + strconv.Itoa(l))
-	}
-
-	if len(sig) != SignatureSize || sig[63]&224 != 0 {
-		return false
-	}
-
-	var A edwards25519.ExtendedGroupElement
-	var publicKeyBytes [32]byte
-	copy(publicKeyBytes[:], publicKey)
-	if !A.FromBytes(&publicKeyBytes) {
-		return false
-	}
-	edwards25519.FeNeg(&A.X, &A.X)
-	edwards25519.FeNeg(&A.T, &A.T)
-
-	h := sha512.New()
-	h.Write(sig[:32])
-	h.Write(publicKey[:])
-	h.Write(message)
-	var digest [64]byte
-	h.Sum(digest[:0])
-
-	var hReduced [32]byte
-	edwards25519.ScReduce(&hReduced, &digest)
-
-	var R edwards25519.ProjectiveGroupElement
-	var s [32]byte
-	copy(s[:], sig[32:])
-
-	// https://tools.ietf.org/html/rfc8032#section-5.1.7 requires that s be in
-	// the range [0, order) in order to prevent signature malleability.
-	if !edwards25519.ScMinimal(&s) {
-		return false
-	}
-
-	edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &s)
-
-	var checkR [32]byte
-	R.ToBytes(&checkR)
-	return bytes.Equal(sig[:32], checkR[:])
-}
diff --git a/vendor/golang.org/x/crypto/ed25519/ed25519_test.go b/vendor/golang.org/x/crypto/ed25519/ed25519_test.go
deleted file mode 100644
index 8094603..0000000
--- a/vendor/golang.org/x/crypto/ed25519/ed25519_test.go
+++ /dev/null
@@ -1,220 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ed25519
-
-import (
-	"bufio"
-	"bytes"
-	"compress/gzip"
-	"crypto"
-	"crypto/rand"
-	"encoding/hex"
-	"os"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/ed25519/internal/edwards25519"
-)
-
-type zeroReader struct{}
-
-func (zeroReader) Read(buf []byte) (int, error) {
-	for i := range buf {
-		buf[i] = 0
-	}
-	return len(buf), nil
-}
-
-func TestUnmarshalMarshal(t *testing.T) {
-	pub, _, _ := GenerateKey(rand.Reader)
-
-	var A edwards25519.ExtendedGroupElement
-	var pubBytes [32]byte
-	copy(pubBytes[:], pub)
-	if !A.FromBytes(&pubBytes) {
-		t.Fatalf("ExtendedGroupElement.FromBytes failed")
-	}
-
-	var pub2 [32]byte
-	A.ToBytes(&pub2)
-
-	if pubBytes != pub2 {
-		t.Errorf("FromBytes(%v)->ToBytes does not round-trip, got %x\n", pubBytes, pub2)
-	}
-}
-
-func TestSignVerify(t *testing.T) {
-	var zero zeroReader
-	public, private, _ := GenerateKey(zero)
-
-	message := []byte("test message")
-	sig := Sign(private, message)
-	if !Verify(public, message, sig) {
-		t.Errorf("valid signature rejected")
-	}
-
-	wrongMessage := []byte("wrong message")
-	if Verify(public, wrongMessage, sig) {
-		t.Errorf("signature of different message accepted")
-	}
-}
-
-func TestCryptoSigner(t *testing.T) {
-	var zero zeroReader
-	public, private, _ := GenerateKey(zero)
-
-	signer := crypto.Signer(private)
-
-	publicInterface := signer.Public()
-	public2, ok := publicInterface.(PublicKey)
-	if !ok {
-		t.Fatalf("expected PublicKey from Public() but got %T", publicInterface)
-	}
-
-	if !bytes.Equal(public, public2) {
-		t.Errorf("public keys do not match: original:%x vs Public():%x", public, public2)
-	}
-
-	message := []byte("message")
-	var noHash crypto.Hash
-	signature, err := signer.Sign(zero, message, noHash)
-	if err != nil {
-		t.Fatalf("error from Sign(): %s", err)
-	}
-
-	if !Verify(public, message, signature) {
-		t.Errorf("Verify failed on signature from Sign()")
-	}
-}
-
-func TestGolden(t *testing.T) {
-	// sign.input.gz is a selection of test cases from
-	// https://ed25519.cr.yp.to/python/sign.input
-	testDataZ, err := os.Open("testdata/sign.input.gz")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer testDataZ.Close()
-	testData, err := gzip.NewReader(testDataZ)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer testData.Close()
-
-	scanner := bufio.NewScanner(testData)
-	lineNo := 0
-
-	for scanner.Scan() {
-		lineNo++
-
-		line := scanner.Text()
-		parts := strings.Split(line, ":")
-		if len(parts) != 5 {
-			t.Fatalf("bad number of parts on line %d", lineNo)
-		}
-
-		privBytes, _ := hex.DecodeString(parts[0])
-		pubKey, _ := hex.DecodeString(parts[1])
-		msg, _ := hex.DecodeString(parts[2])
-		sig, _ := hex.DecodeString(parts[3])
-		// The signatures in the test vectors also include the message
-		// at the end, but we just want R and S.
-		sig = sig[:SignatureSize]
-
-		if l := len(pubKey); l != PublicKeySize {
-			t.Fatalf("bad public key length on line %d: got %d bytes", lineNo, l)
-		}
-
-		var priv [PrivateKeySize]byte
-		copy(priv[:], privBytes)
-		copy(priv[32:], pubKey)
-
-		sig2 := Sign(priv[:], msg)
-		if !bytes.Equal(sig, sig2[:]) {
-			t.Errorf("different signature result on line %d: %x vs %x", lineNo, sig, sig2)
-		}
-
-		if !Verify(pubKey, msg, sig2) {
-			t.Errorf("signature failed to verify on line %d", lineNo)
-		}
-
-		priv2 := NewKeyFromSeed(priv[:32])
-		if !bytes.Equal(priv[:], priv2) {
-			t.Errorf("recreating key pair gave different private key on line %d: %x vs %x", lineNo, priv[:], priv2)
-		}
-
-		if pubKey2 := priv2.Public().(PublicKey); !bytes.Equal(pubKey, pubKey2) {
-			t.Errorf("recreating key pair gave different public key on line %d: %x vs %x", lineNo, pubKey, pubKey2)
-		}
-
-		if seed := priv2.Seed(); !bytes.Equal(priv[:32], seed) {
-			t.Errorf("recreating key pair gave different seed on line %d: %x vs %x", lineNo, priv[:32], seed)
-		}
-	}
-
-	if err := scanner.Err(); err != nil {
-		t.Fatalf("error reading test data: %s", err)
-	}
-}
-
-func TestMalleability(t *testing.T) {
-	// https://tools.ietf.org/html/rfc8032#section-5.1.7 adds an additional test
-	// that s be in [0, order). This prevents someone from adding a multiple of
-	// order to s and obtaining a second valid signature for the same message.
-	msg := []byte{0x54, 0x65, 0x73, 0x74}
-	sig := []byte{
-		0x7c, 0x38, 0xe0, 0x26, 0xf2, 0x9e, 0x14, 0xaa, 0xbd, 0x05, 0x9a,
-		0x0f, 0x2d, 0xb8, 0xb0, 0xcd, 0x78, 0x30, 0x40, 0x60, 0x9a, 0x8b,
-		0xe6, 0x84, 0xdb, 0x12, 0xf8, 0x2a, 0x27, 0x77, 0x4a, 0xb0, 0x67,
-		0x65, 0x4b, 0xce, 0x38, 0x32, 0xc2, 0xd7, 0x6f, 0x8f, 0x6f, 0x5d,
-		0xaf, 0xc0, 0x8d, 0x93, 0x39, 0xd4, 0xee, 0xf6, 0x76, 0x57, 0x33,
-		0x36, 0xa5, 0xc5, 0x1e, 0xb6, 0xf9, 0x46, 0xb3, 0x1d,
-	}
-	publicKey := []byte{
-		0x7d, 0x4d, 0x0e, 0x7f, 0x61, 0x53, 0xa6, 0x9b, 0x62, 0x42, 0xb5,
-		0x22, 0xab, 0xbe, 0xe6, 0x85, 0xfd, 0xa4, 0x42, 0x0f, 0x88, 0x34,
-		0xb1, 0x08, 0xc3, 0xbd, 0xae, 0x36, 0x9e, 0xf5, 0x49, 0xfa,
-	}
-
-	if Verify(publicKey, msg, sig) {
-		t.Fatal("non-canonical signature accepted")
-	}
-}
-
-func BenchmarkKeyGeneration(b *testing.B) {
-	var zero zeroReader
-	for i := 0; i < b.N; i++ {
-		if _, _, err := GenerateKey(zero); err != nil {
-			b.Fatal(err)
-		}
-	}
-}
-
-func BenchmarkSigning(b *testing.B) {
-	var zero zeroReader
-	_, priv, err := GenerateKey(zero)
-	if err != nil {
-		b.Fatal(err)
-	}
-	message := []byte("Hello, world!")
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Sign(priv, message)
-	}
-}
-
-func BenchmarkVerification(b *testing.B) {
-	var zero zeroReader
-	pub, priv, err := GenerateKey(zero)
-	if err != nil {
-		b.Fatal(err)
-	}
-	message := []byte("Hello, world!")
-	signature := Sign(priv, message)
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Verify(pub, message, signature)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go
deleted file mode 100644
index e39f086..0000000
--- a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go
+++ /dev/null
@@ -1,1422 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package edwards25519
-
-// These values are from the public domain, “ref10” implementation of ed25519
-// from SUPERCOP.
-
-// d is a constant in the Edwards curve equation.
-var d = FieldElement{
-	-10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116,
-}
-
-// d2 is 2*d.
-var d2 = FieldElement{
-	-21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199,
-}
-
-// SqrtM1 is the square-root of -1 in the field.
-var SqrtM1 = FieldElement{
-	-32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482,
-}
-
-// A is a constant in the Montgomery-form of curve25519.
-var A = FieldElement{
-	486662, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-}
-
-// bi contains precomputed multiples of the base-point. See the Ed25519 paper
-// for a discussion about how these values are used.
-var bi = [8]PreComputedGroupElement{
-	{
-		FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605},
-		FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378},
-		FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546},
-	},
-	{
-		FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024},
-		FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574},
-		FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357},
-	},
-	{
-		FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380},
-		FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306},
-		FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942},
-	},
-	{
-		FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766},
-		FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701},
-		FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300},
-	},
-	{
-		FieldElement{-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877},
-		FieldElement{-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951},
-		FieldElement{4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784},
-	},
-	{
-		FieldElement{-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436},
-		FieldElement{25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918},
-		FieldElement{23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877},
-	},
-	{
-		FieldElement{-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800},
-		FieldElement{-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305},
-		FieldElement{-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300},
-	},
-	{
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-	},
-}
-
-// base contains precomputed multiples of the base-point. See the Ed25519 paper
-// for a discussion about how these values are used.
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-		{
-			FieldElement{22258397, -16332233, -7869817, 14613016, -22520255, -2950923, -20353881, 7315967, 16648397, 7605640},
-			FieldElement{-8081308, -8464597, -8223311, 9719710, 19259459, -15348212, 23994942, -5281555, -9468848, 4763278},
-			FieldElement{-21699244, 9220969, -15730624, 1084137, -25476107, -2852390, 31088447, -7764523, -11356529, 728112},
-		},
-		{
-			FieldElement{26047220, -11751471, -6900323, -16521798, 24092068, 9158119, -4273545, -12555558, -29365436, -5498272},
-			FieldElement{17510331, -322857, 5854289, 8403524, 17133918, -3112612, -28111007, 12327945, 10750447, 10014012},
-			FieldElement{-10312768, 3936952, 9156313, -8897683, 16498692, -994647, -27481051, -666732, 3424691, 7540221},
-		},
-		{
-			FieldElement{30322361, -6964110, 11361005, -4143317, 7433304, 4989748, -7071422, -16317219, -9244265, 15258046},
-			FieldElement{13054562, -2779497, 19155474, 469045, -12482797, 4566042, 5631406, 2711395, 1062915, -5136345},
-			FieldElement{-19240248, -11254599, -29509029, -7499965, -5835763, 13005411, -6066489, 12194497, 32960380, 1459310},
-		},
-	},
-	{
-		{
-			FieldElement{19852034, 7027924, 23669353, 10020366, 8586503, -6657907, 394197, -6101885, 18638003, -11174937},
-			FieldElement{31395534, 15098109, 26581030, 8030562, -16527914, -5007134, 9012486, -7584354, -6643087, -5442636},
-			FieldElement{-9192165, -2347377, -1997099, 4529534, 25766844, 607986, -13222, 9677543, -32294889, -6456008},
-		},
-		{
-			FieldElement{-2444496, -149937, 29348902, 8186665, 1873760, 12489863, -30934579, -7839692, -7852844, -8138429},
-			FieldElement{-15236356, -15433509, 7766470, 746860, 26346930, -10221762, -27333451, 10754588, -9431476, 5203576},
-			FieldElement{31834314, 14135496, -770007, 5159118, 20917671, -16768096, -7467973, -7337524, 31809243, 7347066},
-		},
-		{
-			FieldElement{-9606723, -11874240, 20414459, 13033986, 13716524, -11691881, 19797970, -12211255, 15192876, -2087490},
-			FieldElement{-12663563, -2181719, 1168162, -3804809, 26747877, -14138091, 10609330, 12694420, 33473243, -13382104},
-			FieldElement{33184999, 11180355, 15832085, -11385430, -1633671, 225884, 15089336, -11023903, -6135662, 14480053},
-		},
-		{
-			FieldElement{31308717, -5619998, 31030840, -1897099, 15674547, -6582883, 5496208, 13685227, 27595050, 8737275},
-			FieldElement{-20318852, -15150239, 10933843, -16178022, 8335352, -7546022, -31008351, -12610604, 26498114, 66511},
-			FieldElement{22644454, -8761729, -16671776, 4884562, -3105614, -13559366, 30540766, -4286747, -13327787, -7515095},
-		},
-		{
-			FieldElement{-28017847, 9834845, 18617207, -2681312, -3401956, -13307506, 8205540, 13585437, -17127465, 15115439},
-			FieldElement{23711543, -672915, 31206561, -8362711, 6164647, -9709987, -33535882, -1426096, 8236921, 16492939},
-			FieldElement{-23910559, -13515526, -26299483, -4503841, 25005590, -7687270, 19574902, 10071562, 6708380, -6222424},
-		},
-		{
-			FieldElement{2101391, -4930054, 19702731, 2367575, -15427167, 1047675, 5301017, 9328700, 29955601, -11678310},
-			FieldElement{3096359, 9271816, -21620864, -15521844, -14847996, -7592937, -25892142, -12635595, -9917575, 6216608},
-			FieldElement{-32615849, 338663, -25195611, 2510422, -29213566, -13820213, 24822830, -6146567, -26767480, 7525079},
-		},
-		{
-			FieldElement{-23066649, -13985623, 16133487, -7896178, -3389565, 778788, -910336, -2782495, -19386633, 11994101},
-			FieldElement{21691500, -13624626, -641331, -14367021, 3285881, -3483596, -25064666, 9718258, -7477437, 13381418},
-			FieldElement{18445390, -4202236, 14979846, 11622458, -1727110, -3582980, 23111648, -6375247, 28535282, 15779576},
-		},
-		{
-			FieldElement{30098053, 3089662, -9234387, 16662135, -21306940, 11308411, -14068454, 12021730, 9955285, -16303356},
-			FieldElement{9734894, -14576830, -7473633, -9138735, 2060392, 11313496, -18426029, 9924399, 20194861, 13380996},
-			FieldElement{-26378102, -7965207, -22167821, 15789297, -18055342, -6168792, -1984914, 15707771, 26342023, 10146099},
-		},
-	},
-	{
-		{
-			FieldElement{-26016874, -219943, 21339191, -41388, 19745256, -2878700, -29637280, 2227040, 21612326, -545728},
-			FieldElement{-13077387, 1184228, 23562814, -5970442, -20351244, -6348714, 25764461, 12243797, -20856566, 11649658},
-			FieldElement{-10031494, 11262626, 27384172, 2271902, 26947504, -15997771, 39944, 6114064, 33514190, 2333242},
-		},
-		{
-			FieldElement{-21433588, -12421821, 8119782, 7219913, -21830522, -9016134, -6679750, -12670638, 24350578, -13450001},
-			FieldElement{-4116307, -11271533, -23886186, 4843615, -30088339, 690623, -31536088, -10406836, 8317860, 12352766},
-			FieldElement{18200138, -14475911, -33087759, -2696619, -23702521, -9102511, -23552096, -2287550, 20712163, 6719373},
-		},
-		{
-			FieldElement{26656208, 6075253, -7858556, 1886072, -28344043, 4262326, 11117530, -3763210, 26224235, -3297458},
-			FieldElement{-17168938, -14854097, -3395676, -16369877, -19954045, 14050420, 21728352, 9493610, 18620611, -16428628},
-			FieldElement{-13323321, 13325349, 11432106, 5964811, 18609221, 6062965, -5269471, -9725556, -30701573, -16479657},
-		},
-		{
-			FieldElement{-23860538, -11233159, 26961357, 1640861, -32413112, -16737940, 12248509, -5240639, 13735342, 1934062},
-			FieldElement{25089769, 6742589, 17081145, -13406266, 21909293, -16067981, -15136294, -3765346, -21277997, 5473616},
-			FieldElement{31883677, -7961101, 1083432, -11572403, 22828471, 13290673, -7125085, 12469656, 29111212, -5451014},
-		},
-		{
-			FieldElement{24244947, -15050407, -26262976, 2791540, -14997599, 16666678, 24367466, 6388839, -10295587, 452383},
-			FieldElement{-25640782, -3417841, 5217916, 16224624, 19987036, -4082269, -24236251, -5915248, 15766062, 8407814},
-			FieldElement{-20406999, 13990231, 15495425, 16395525, 5377168, 15166495, -8917023, -4388953, -8067909, 2276718},
-		},
-		{
-			FieldElement{30157918, 12924066, -17712050, 9245753, 19895028, 3368142, -23827587, 5096219, 22740376, -7303417},
-			FieldElement{2041139, -14256350, 7783687, 13876377, -25946985, -13352459, 24051124, 13742383, -15637599, 13295222},
-			FieldElement{33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444},
-		},
-		{
-			FieldElement{-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597},
-			FieldElement{23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970},
-			FieldElement{1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799},
-		},
-		{
-			FieldElement{-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647},
-			FieldElement{13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511},
-			FieldElement{-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032},
-		},
-	},
-	{
-		{
-			FieldElement{9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834},
-			FieldElement{-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461},
-			FieldElement{29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062},
-		},
-		{
-			FieldElement{-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516},
-			FieldElement{-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547},
-			FieldElement{-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240},
-		},
-		{
-			FieldElement{-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038},
-			FieldElement{-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741},
-			FieldElement{16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103},
-		},
-		{
-			FieldElement{-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747},
-			FieldElement{-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323},
-			FieldElement{31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016},
-		},
-		{
-			FieldElement{-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373},
-			FieldElement{15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228},
-			FieldElement{-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141},
-		},
-		{
-			FieldElement{16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399},
-			FieldElement{11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831},
-			FieldElement{-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376},
-		},
-		{
-			FieldElement{-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313},
-			FieldElement{-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958},
-			FieldElement{-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577},
-		},
-		{
-			FieldElement{-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743},
-			FieldElement{29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684},
-			FieldElement{-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476},
-		},
-	},
-}
diff --git a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go
deleted file mode 100644
index fd03c25..0000000
--- a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go
+++ /dev/null
@@ -1,1793 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package edwards25519
-
-import "encoding/binary"
-
-// This code is a port of the public domain, “ref10” implementation of ed25519
-// from SUPERCOP.
-
-// FieldElement represents an element of the field GF(2^255 - 19).  An element
-// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77
-// t[3]+2^102 t[4]+...+2^230 t[9].  Bounds on each t[i] vary depending on
-// context.
-type FieldElement [10]int32
-
-var zero FieldElement
-
-func FeZero(fe *FieldElement) {
-	copy(fe[:], zero[:])
-}
-
-func FeOne(fe *FieldElement) {
-	FeZero(fe)
-	fe[0] = 1
-}
-
-func FeAdd(dst, a, b *FieldElement) {
-	dst[0] = a[0] + b[0]
-	dst[1] = a[1] + b[1]
-	dst[2] = a[2] + b[2]
-	dst[3] = a[3] + b[3]
-	dst[4] = a[4] + b[4]
-	dst[5] = a[5] + b[5]
-	dst[6] = a[6] + b[6]
-	dst[7] = a[7] + b[7]
-	dst[8] = a[8] + b[8]
-	dst[9] = a[9] + b[9]
-}
-
-func FeSub(dst, a, b *FieldElement) {
-	dst[0] = a[0] - b[0]
-	dst[1] = a[1] - b[1]
-	dst[2] = a[2] - b[2]
-	dst[3] = a[3] - b[3]
-	dst[4] = a[4] - b[4]
-	dst[5] = a[5] - b[5]
-	dst[6] = a[6] - b[6]
-	dst[7] = a[7] - b[7]
-	dst[8] = a[8] - b[8]
-	dst[9] = a[9] - b[9]
-}
-
-func FeCopy(dst, src *FieldElement) {
-	copy(dst[:], src[:])
-}
-
-// Replace (f,g) with (g,g) if b == 1;
-// replace (f,g) with (f,g) if b == 0.
-//
-// Preconditions: b in {0,1}.
-func FeCMove(f, g *FieldElement, b int32) {
-	b = -b
-	f[0] ^= b & (f[0] ^ g[0])
-	f[1] ^= b & (f[1] ^ g[1])
-	f[2] ^= b & (f[2] ^ g[2])
-	f[3] ^= b & (f[3] ^ g[3])
-	f[4] ^= b & (f[4] ^ g[4])
-	f[5] ^= b & (f[5] ^ g[5])
-	f[6] ^= b & (f[6] ^ g[6])
-	f[7] ^= b & (f[7] ^ g[7])
-	f[8] ^= b & (f[8] ^ g[8])
-	f[9] ^= b & (f[9] ^ g[9])
-}
-
-func load3(in []byte) int64 {
-	var r int64
-	r = int64(in[0])
-	r |= int64(in[1]) << 8
-	r |= int64(in[2]) << 16
-	return r
-}
-
-func load4(in []byte) int64 {
-	var r int64
-	r = int64(in[0])
-	r |= int64(in[1]) << 8
-	r |= int64(in[2]) << 16
-	r |= int64(in[3]) << 24
-	return r
-}
-
-func FeFromBytes(dst *FieldElement, src *[32]byte) {
-	h0 := load4(src[:])
-	h1 := load3(src[4:]) << 6
-	h2 := load3(src[7:]) << 5
-	h3 := load3(src[10:]) << 3
-	h4 := load3(src[13:]) << 2
-	h5 := load4(src[16:])
-	h6 := load3(src[20:]) << 7
-	h7 := load3(src[23:]) << 5
-	h8 := load3(src[26:]) << 4
-	h9 := (load3(src[29:]) & 8388607) << 2
-
-	FeCombine(dst, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
-}
-
-// FeToBytes marshals h to s.
-// Preconditions:
-//   |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Write p=2^255-19; q=floor(h/p).
-// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))).
-//
-// Proof:
-//   Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4.
-//   Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4.
-//
-//   Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9).
-//   Then 0<y<1.
-//
-//   Write r=h-pq.
-//   Have 0<=r<=p-1=2^255-20.
-//   Thus 0<=r+19(2^-255)r<r+19(2^-255)2^255<=2^255-1.
-//
-//   Write x=r+19(2^-255)r+y.
-//   Then 0<x<2^255 so floor(2^(-255)x) = 0 so floor(q+2^(-255)x) = q.
-//
-//   Have q+2^(-255)x = 2^(-255)(h + 19 2^(-25) h9 + 2^(-1))
-//   so floor(2^(-255)(h + 19 2^(-25) h9 + 2^(-1))) = q.
-func FeToBytes(s *[32]byte, h *FieldElement) {
-	var carry [10]int32
-
-	q := (19*h[9] + (1 << 24)) >> 25
-	q = (h[0] + q) >> 26
-	q = (h[1] + q) >> 25
-	q = (h[2] + q) >> 26
-	q = (h[3] + q) >> 25
-	q = (h[4] + q) >> 26
-	q = (h[5] + q) >> 25
-	q = (h[6] + q) >> 26
-	q = (h[7] + q) >> 25
-	q = (h[8] + q) >> 26
-	q = (h[9] + q) >> 25
-
-	// Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20.
-	h[0] += 19 * q
-	// Goal: Output h-2^255 q, which is between 0 and 2^255-20.
-
-	carry[0] = h[0] >> 26
-	h[1] += carry[0]
-	h[0] -= carry[0] << 26
-	carry[1] = h[1] >> 25
-	h[2] += carry[1]
-	h[1] -= carry[1] << 25
-	carry[2] = h[2] >> 26
-	h[3] += carry[2]
-	h[2] -= carry[2] << 26
-	carry[3] = h[3] >> 25
-	h[4] += carry[3]
-	h[3] -= carry[3] << 25
-	carry[4] = h[4] >> 26
-	h[5] += carry[4]
-	h[4] -= carry[4] << 26
-	carry[5] = h[5] >> 25
-	h[6] += carry[5]
-	h[5] -= carry[5] << 25
-	carry[6] = h[6] >> 26
-	h[7] += carry[6]
-	h[6] -= carry[6] << 26
-	carry[7] = h[7] >> 25
-	h[8] += carry[7]
-	h[7] -= carry[7] << 25
-	carry[8] = h[8] >> 26
-	h[9] += carry[8]
-	h[8] -= carry[8] << 26
-	carry[9] = h[9] >> 25
-	h[9] -= carry[9] << 25
-	// h10 = carry9
-
-	// Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20.
-	// Have h[0]+...+2^230 h[9] between 0 and 2^255-1;
-	// evidently 2^255 h10-2^255 q = 0.
-	// Goal: Output h[0]+...+2^230 h[9].
-
-	s[0] = byte(h[0] >> 0)
-	s[1] = byte(h[0] >> 8)
-	s[2] = byte(h[0] >> 16)
-	s[3] = byte((h[0] >> 24) | (h[1] << 2))
-	s[4] = byte(h[1] >> 6)
-	s[5] = byte(h[1] >> 14)
-	s[6] = byte((h[1] >> 22) | (h[2] << 3))
-	s[7] = byte(h[2] >> 5)
-	s[8] = byte(h[2] >> 13)
-	s[9] = byte((h[2] >> 21) | (h[3] << 5))
-	s[10] = byte(h[3] >> 3)
-	s[11] = byte(h[3] >> 11)
-	s[12] = byte((h[3] >> 19) | (h[4] << 6))
-	s[13] = byte(h[4] >> 2)
-	s[14] = byte(h[4] >> 10)
-	s[15] = byte(h[4] >> 18)
-	s[16] = byte(h[5] >> 0)
-	s[17] = byte(h[5] >> 8)
-	s[18] = byte(h[5] >> 16)
-	s[19] = byte((h[5] >> 24) | (h[6] << 1))
-	s[20] = byte(h[6] >> 7)
-	s[21] = byte(h[6] >> 15)
-	s[22] = byte((h[6] >> 23) | (h[7] << 3))
-	s[23] = byte(h[7] >> 5)
-	s[24] = byte(h[7] >> 13)
-	s[25] = byte((h[7] >> 21) | (h[8] << 4))
-	s[26] = byte(h[8] >> 4)
-	s[27] = byte(h[8] >> 12)
-	s[28] = byte((h[8] >> 20) | (h[9] << 6))
-	s[29] = byte(h[9] >> 2)
-	s[30] = byte(h[9] >> 10)
-	s[31] = byte(h[9] >> 18)
-}
-
-func FeIsNegative(f *FieldElement) byte {
-	var s [32]byte
-	FeToBytes(&s, f)
-	return s[0] & 1
-}
-
-func FeIsNonZero(f *FieldElement) int32 {
-	var s [32]byte
-	FeToBytes(&s, f)
-	var x uint8
-	for _, b := range s {
-		x |= b
-	}
-	x |= x >> 4
-	x |= x >> 2
-	x |= x >> 1
-	return int32(x & 1)
-}
-
-// FeNeg sets h = -f
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func FeNeg(h, f *FieldElement) {
-	h[0] = -f[0]
-	h[1] = -f[1]
-	h[2] = -f[2]
-	h[3] = -f[3]
-	h[4] = -f[4]
-	h[5] = -f[5]
-	h[6] = -f[6]
-	h[7] = -f[7]
-	h[8] = -f[8]
-	h[9] = -f[9]
-}
-
-func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) {
-	var c0, c1, c2, c3, c4, c5, c6, c7, c8, c9 int64
-
-	/*
-	  |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38))
-	    i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8
-	  |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19))
-	    i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9
-	*/
-
-	c0 = (h0 + (1 << 25)) >> 26
-	h1 += c0
-	h0 -= c0 << 26
-	c4 = (h4 + (1 << 25)) >> 26
-	h5 += c4
-	h4 -= c4 << 26
-	/* |h0| <= 2^25 */
-	/* |h4| <= 2^25 */
-	/* |h1| <= 1.51*2^58 */
-	/* |h5| <= 1.51*2^58 */
-
-	c1 = (h1 + (1 << 24)) >> 25
-	h2 += c1
-	h1 -= c1 << 25
-	c5 = (h5 + (1 << 24)) >> 25
-	h6 += c5
-	h5 -= c5 << 25
-	/* |h1| <= 2^24; from now on fits into int32 */
-	/* |h5| <= 2^24; from now on fits into int32 */
-	/* |h2| <= 1.21*2^59 */
-	/* |h6| <= 1.21*2^59 */
-
-	c2 = (h2 + (1 << 25)) >> 26
-	h3 += c2
-	h2 -= c2 << 26
-	c6 = (h6 + (1 << 25)) >> 26
-	h7 += c6
-	h6 -= c6 << 26
-	/* |h2| <= 2^25; from now on fits into int32 unchanged */
-	/* |h6| <= 2^25; from now on fits into int32 unchanged */
-	/* |h3| <= 1.51*2^58 */
-	/* |h7| <= 1.51*2^58 */
-
-	c3 = (h3 + (1 << 24)) >> 25
-	h4 += c3
-	h3 -= c3 << 25
-	c7 = (h7 + (1 << 24)) >> 25
-	h8 += c7
-	h7 -= c7 << 25
-	/* |h3| <= 2^24; from now on fits into int32 unchanged */
-	/* |h7| <= 2^24; from now on fits into int32 unchanged */
-	/* |h4| <= 1.52*2^33 */
-	/* |h8| <= 1.52*2^33 */
-
-	c4 = (h4 + (1 << 25)) >> 26
-	h5 += c4
-	h4 -= c4 << 26
-	c8 = (h8 + (1 << 25)) >> 26
-	h9 += c8
-	h8 -= c8 << 26
-	/* |h4| <= 2^25; from now on fits into int32 unchanged */
-	/* |h8| <= 2^25; from now on fits into int32 unchanged */
-	/* |h5| <= 1.01*2^24 */
-	/* |h9| <= 1.51*2^58 */
-
-	c9 = (h9 + (1 << 24)) >> 25
-	h0 += c9 * 19
-	h9 -= c9 << 25
-	/* |h9| <= 2^24; from now on fits into int32 unchanged */
-	/* |h0| <= 1.8*2^37 */
-
-	c0 = (h0 + (1 << 25)) >> 26
-	h1 += c0
-	h0 -= c0 << 26
-	/* |h0| <= 2^25; from now on fits into int32 unchanged */
-	/* |h1| <= 1.01*2^24 */
-
-	h[0] = int32(h0)
-	h[1] = int32(h1)
-	h[2] = int32(h2)
-	h[3] = int32(h3)
-	h[4] = int32(h4)
-	h[5] = int32(h5)
-	h[6] = int32(h6)
-	h[7] = int32(h7)
-	h[8] = int32(h8)
-	h[9] = int32(h9)
-}
-
-// FeMul calculates h = f * g
-// Can overlap h with f or g.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//    |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-//
-// Notes on implementation strategy:
-//
-// Using schoolbook multiplication.
-// Karatsuba would save a little in some cost models.
-//
-// Most multiplications by 2 and 19 are 32-bit precomputations;
-// cheaper than 64-bit postcomputations.
-//
-// There is one remaining multiplication by 19 in the carry chain;
-// one *19 precomputation can be merged into this,
-// but the resulting data flow is considerably less clean.
-//
-// There are 12 carries below.
-// 10 of them are 2-way parallelizable and vectorizable.
-// Can get away with 11 carries, but then data flow is much deeper.
-//
-// With tighter constraints on inputs, can squeeze carries into int32.
-func FeMul(h, f, g *FieldElement) {
-	f0 := int64(f[0])
-	f1 := int64(f[1])
-	f2 := int64(f[2])
-	f3 := int64(f[3])
-	f4 := int64(f[4])
-	f5 := int64(f[5])
-	f6 := int64(f[6])
-	f7 := int64(f[7])
-	f8 := int64(f[8])
-	f9 := int64(f[9])
-
-	f1_2 := int64(2 * f[1])
-	f3_2 := int64(2 * f[3])
-	f5_2 := int64(2 * f[5])
-	f7_2 := int64(2 * f[7])
-	f9_2 := int64(2 * f[9])
-
-	g0 := int64(g[0])
-	g1 := int64(g[1])
-	g2 := int64(g[2])
-	g3 := int64(g[3])
-	g4 := int64(g[4])
-	g5 := int64(g[5])
-	g6 := int64(g[6])
-	g7 := int64(g[7])
-	g8 := int64(g[8])
-	g9 := int64(g[9])
-
-	g1_19 := int64(19 * g[1]) /* 1.4*2^29 */
-	g2_19 := int64(19 * g[2]) /* 1.4*2^30; still ok */
-	g3_19 := int64(19 * g[3])
-	g4_19 := int64(19 * g[4])
-	g5_19 := int64(19 * g[5])
-	g6_19 := int64(19 * g[6])
-	g7_19 := int64(19 * g[7])
-	g8_19 := int64(19 * g[8])
-	g9_19 := int64(19 * g[9])
-
-	h0 := f0*g0 + f1_2*g9_19 + f2*g8_19 + f3_2*g7_19 + f4*g6_19 + f5_2*g5_19 + f6*g4_19 + f7_2*g3_19 + f8*g2_19 + f9_2*g1_19
-	h1 := f0*g1 + f1*g0 + f2*g9_19 + f3*g8_19 + f4*g7_19 + f5*g6_19 + f6*g5_19 + f7*g4_19 + f8*g3_19 + f9*g2_19
-	h2 := f0*g2 + f1_2*g1 + f2*g0 + f3_2*g9_19 + f4*g8_19 + f5_2*g7_19 + f6*g6_19 + f7_2*g5_19 + f8*g4_19 + f9_2*g3_19
-	h3 := f0*g3 + f1*g2 + f2*g1 + f3*g0 + f4*g9_19 + f5*g8_19 + f6*g7_19 + f7*g6_19 + f8*g5_19 + f9*g4_19
-	h4 := f0*g4 + f1_2*g3 + f2*g2 + f3_2*g1 + f4*g0 + f5_2*g9_19 + f6*g8_19 + f7_2*g7_19 + f8*g6_19 + f9_2*g5_19
-	h5 := f0*g5 + f1*g4 + f2*g3 + f3*g2 + f4*g1 + f5*g0 + f6*g9_19 + f7*g8_19 + f8*g7_19 + f9*g6_19
-	h6 := f0*g6 + f1_2*g5 + f2*g4 + f3_2*g3 + f4*g2 + f5_2*g1 + f6*g0 + f7_2*g9_19 + f8*g8_19 + f9_2*g7_19
-	h7 := f0*g7 + f1*g6 + f2*g5 + f3*g4 + f4*g3 + f5*g2 + f6*g1 + f7*g0 + f8*g9_19 + f9*g8_19
-	h8 := f0*g8 + f1_2*g7 + f2*g6 + f3_2*g5 + f4*g4 + f5_2*g3 + f6*g2 + f7_2*g1 + f8*g0 + f9_2*g9_19
-	h9 := f0*g9 + f1*g8 + f2*g7 + f3*g6 + f4*g5 + f5*g4 + f6*g3 + f7*g2 + f8*g1 + f9*g0
-
-	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
-}
-
-func feSquare(f *FieldElement) (h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) {
-	f0 := int64(f[0])
-	f1 := int64(f[1])
-	f2 := int64(f[2])
-	f3 := int64(f[3])
-	f4 := int64(f[4])
-	f5 := int64(f[5])
-	f6 := int64(f[6])
-	f7 := int64(f[7])
-	f8 := int64(f[8])
-	f9 := int64(f[9])
-	f0_2 := int64(2 * f[0])
-	f1_2 := int64(2 * f[1])
-	f2_2 := int64(2 * f[2])
-	f3_2 := int64(2 * f[3])
-	f4_2 := int64(2 * f[4])
-	f5_2 := int64(2 * f[5])
-	f6_2 := int64(2 * f[6])
-	f7_2 := int64(2 * f[7])
-	f5_38 := 38 * f5 // 1.31*2^30
-	f6_19 := 19 * f6 // 1.31*2^30
-	f7_38 := 38 * f7 // 1.31*2^30
-	f8_19 := 19 * f8 // 1.31*2^30
-	f9_38 := 38 * f9 // 1.31*2^30
-
-	h0 = f0*f0 + f1_2*f9_38 + f2_2*f8_19 + f3_2*f7_38 + f4_2*f6_19 + f5*f5_38
-	h1 = f0_2*f1 + f2*f9_38 + f3_2*f8_19 + f4*f7_38 + f5_2*f6_19
-	h2 = f0_2*f2 + f1_2*f1 + f3_2*f9_38 + f4_2*f8_19 + f5_2*f7_38 + f6*f6_19
-	h3 = f0_2*f3 + f1_2*f2 + f4*f9_38 + f5_2*f8_19 + f6*f7_38
-	h4 = f0_2*f4 + f1_2*f3_2 + f2*f2 + f5_2*f9_38 + f6_2*f8_19 + f7*f7_38
-	h5 = f0_2*f5 + f1_2*f4 + f2_2*f3 + f6*f9_38 + f7_2*f8_19
-	h6 = f0_2*f6 + f1_2*f5_2 + f2_2*f4 + f3_2*f3 + f7_2*f9_38 + f8*f8_19
-	h7 = f0_2*f7 + f1_2*f6 + f2_2*f5 + f3_2*f4 + f8*f9_38
-	h8 = f0_2*f8 + f1_2*f7_2 + f2_2*f6 + f3_2*f5_2 + f4*f4 + f9*f9_38
-	h9 = f0_2*f9 + f1_2*f8 + f2_2*f7 + f3_2*f6 + f4_2*f5
-
-	return
-}
-
-// FeSquare calculates h = f*f. Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
-func FeSquare(h, f *FieldElement) {
-	h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f)
-	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
-}
-
-// FeSquare2 sets h = 2 * f * f
-//
-// Can overlap h with f.
-//
-// Preconditions:
-//    |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc.
-//
-// Postconditions:
-//    |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc.
-// See fe_mul.c for discussion of implementation strategy.
-func FeSquare2(h, f *FieldElement) {
-	h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f)
-
-	h0 += h0
-	h1 += h1
-	h2 += h2
-	h3 += h3
-	h4 += h4
-	h5 += h5
-	h6 += h6
-	h7 += h7
-	h8 += h8
-	h9 += h9
-
-	FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9)
-}
-
-func FeInvert(out, z *FieldElement) {
-	var t0, t1, t2, t3 FieldElement
-	var i int
-
-	FeSquare(&t0, z)        // 2^1
-	FeSquare(&t1, &t0)      // 2^2
-	for i = 1; i < 2; i++ { // 2^3
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t1, z, &t1)      // 2^3 + 2^0
-	FeMul(&t0, &t0, &t1)    // 2^3 + 2^1 + 2^0
-	FeSquare(&t2, &t0)      // 2^4 + 2^2 + 2^1
-	FeMul(&t1, &t1, &t2)    // 2^4 + 2^3 + 2^2 + 2^1 + 2^0
-	FeSquare(&t2, &t1)      // 5,4,3,2,1
-	for i = 1; i < 5; i++ { // 9,8,7,6,5
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t1, &t2, &t1)     // 9,8,7,6,5,4,3,2,1,0
-	FeSquare(&t2, &t1)       // 10..1
-	for i = 1; i < 10; i++ { // 19..10
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t2, &t2, &t1)     // 19..0
-	FeSquare(&t3, &t2)       // 20..1
-	for i = 1; i < 20; i++ { // 39..20
-		FeSquare(&t3, &t3)
-	}
-	FeMul(&t2, &t3, &t2)     // 39..0
-	FeSquare(&t2, &t2)       // 40..1
-	for i = 1; i < 10; i++ { // 49..10
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t1, &t2, &t1)     // 49..0
-	FeSquare(&t2, &t1)       // 50..1
-	for i = 1; i < 50; i++ { // 99..50
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t2, &t2, &t1)      // 99..0
-	FeSquare(&t3, &t2)        // 100..1
-	for i = 1; i < 100; i++ { // 199..100
-		FeSquare(&t3, &t3)
-	}
-	FeMul(&t2, &t3, &t2)     // 199..0
-	FeSquare(&t2, &t2)       // 200..1
-	for i = 1; i < 50; i++ { // 249..50
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t1, &t2, &t1)    // 249..0
-	FeSquare(&t1, &t1)      // 250..1
-	for i = 1; i < 5; i++ { // 254..5
-		FeSquare(&t1, &t1)
-	}
-	FeMul(out, &t1, &t0) // 254..5,3,1,0
-}
-
-func fePow22523(out, z *FieldElement) {
-	var t0, t1, t2 FieldElement
-	var i int
-
-	FeSquare(&t0, z)
-	for i = 1; i < 1; i++ {
-		FeSquare(&t0, &t0)
-	}
-	FeSquare(&t1, &t0)
-	for i = 1; i < 2; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t1, z, &t1)
-	FeMul(&t0, &t0, &t1)
-	FeSquare(&t0, &t0)
-	for i = 1; i < 1; i++ {
-		FeSquare(&t0, &t0)
-	}
-	FeMul(&t0, &t1, &t0)
-	FeSquare(&t1, &t0)
-	for i = 1; i < 5; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t0, &t1, &t0)
-	FeSquare(&t1, &t0)
-	for i = 1; i < 10; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t1, &t1, &t0)
-	FeSquare(&t2, &t1)
-	for i = 1; i < 20; i++ {
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t1, &t2, &t1)
-	FeSquare(&t1, &t1)
-	for i = 1; i < 10; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t0, &t1, &t0)
-	FeSquare(&t1, &t0)
-	for i = 1; i < 50; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t1, &t1, &t0)
-	FeSquare(&t2, &t1)
-	for i = 1; i < 100; i++ {
-		FeSquare(&t2, &t2)
-	}
-	FeMul(&t1, &t2, &t1)
-	FeSquare(&t1, &t1)
-	for i = 1; i < 50; i++ {
-		FeSquare(&t1, &t1)
-	}
-	FeMul(&t0, &t1, &t0)
-	FeSquare(&t0, &t0)
-	for i = 1; i < 2; i++ {
-		FeSquare(&t0, &t0)
-	}
-	FeMul(out, &t0, z)
-}
-
-// Group elements are members of the elliptic curve -x^2 + y^2 = 1 + d * x^2 *
-// y^2 where d = -121665/121666.
-//
-// Several representations are used:
-//   ProjectiveGroupElement: (X:Y:Z) satisfying x=X/Z, y=Y/Z
-//   ExtendedGroupElement: (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
-//   CompletedGroupElement: ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
-//   PreComputedGroupElement: (y+x,y-x,2dxy)
-
-type ProjectiveGroupElement struct {
-	X, Y, Z FieldElement
-}
-
-type ExtendedGroupElement struct {
-	X, Y, Z, T FieldElement
-}
-
-type CompletedGroupElement struct {
-	X, Y, Z, T FieldElement
-}
-
-type PreComputedGroupElement struct {
-	yPlusX, yMinusX, xy2d FieldElement
-}
-
-type CachedGroupElement struct {
-	yPlusX, yMinusX, Z, T2d FieldElement
-}
-
-func (p *ProjectiveGroupElement) Zero() {
-	FeZero(&p.X)
-	FeOne(&p.Y)
-	FeOne(&p.Z)
-}
-
-func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement) {
-	var t0 FieldElement
-
-	FeSquare(&r.X, &p.X)
-	FeSquare(&r.Z, &p.Y)
-	FeSquare2(&r.T, &p.Z)
-	FeAdd(&r.Y, &p.X, &p.Y)
-	FeSquare(&t0, &r.Y)
-	FeAdd(&r.Y, &r.Z, &r.X)
-	FeSub(&r.Z, &r.Z, &r.X)
-	FeSub(&r.X, &t0, &r.Y)
-	FeSub(&r.T, &r.T, &r.Z)
-}
-
-func (p *ProjectiveGroupElement) ToBytes(s *[32]byte) {
-	var recip, x, y FieldElement
-
-	FeInvert(&recip, &p.Z)
-	FeMul(&x, &p.X, &recip)
-	FeMul(&y, &p.Y, &recip)
-	FeToBytes(s, &y)
-	s[31] ^= FeIsNegative(&x) << 7
-}
-
-func (p *ExtendedGroupElement) Zero() {
-	FeZero(&p.X)
-	FeOne(&p.Y)
-	FeOne(&p.Z)
-	FeZero(&p.T)
-}
-
-func (p *ExtendedGroupElement) Double(r *CompletedGroupElement) {
-	var q ProjectiveGroupElement
-	p.ToProjective(&q)
-	q.Double(r)
-}
-
-func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement) {
-	FeAdd(&r.yPlusX, &p.Y, &p.X)
-	FeSub(&r.yMinusX, &p.Y, &p.X)
-	FeCopy(&r.Z, &p.Z)
-	FeMul(&r.T2d, &p.T, &d2)
-}
-
-func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement) {
-	FeCopy(&r.X, &p.X)
-	FeCopy(&r.Y, &p.Y)
-	FeCopy(&r.Z, &p.Z)
-}
-
-func (p *ExtendedGroupElement) ToBytes(s *[32]byte) {
-	var recip, x, y FieldElement
-
-	FeInvert(&recip, &p.Z)
-	FeMul(&x, &p.X, &recip)
-	FeMul(&y, &p.Y, &recip)
-	FeToBytes(s, &y)
-	s[31] ^= FeIsNegative(&x) << 7
-}
-
-func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool {
-	var u, v, v3, vxx, check FieldElement
-
-	FeFromBytes(&p.Y, s)
-	FeOne(&p.Z)
-	FeSquare(&u, &p.Y)
-	FeMul(&v, &u, &d)
-	FeSub(&u, &u, &p.Z) // y = y^2-1
-	FeAdd(&v, &v, &p.Z) // v = dy^2+1
-
-	FeSquare(&v3, &v)
-	FeMul(&v3, &v3, &v) // v3 = v^3
-	FeSquare(&p.X, &v3)
-	FeMul(&p.X, &p.X, &v)
-	FeMul(&p.X, &p.X, &u) // x = uv^7
-
-	fePow22523(&p.X, &p.X) // x = (uv^7)^((q-5)/8)
-	FeMul(&p.X, &p.X, &v3)
-	FeMul(&p.X, &p.X, &u) // x = uv^3(uv^7)^((q-5)/8)
-
-	var tmpX, tmp2 [32]byte
-
-	FeSquare(&vxx, &p.X)
-	FeMul(&vxx, &vxx, &v)
-	FeSub(&check, &vxx, &u) // vx^2-u
-	if FeIsNonZero(&check) == 1 {
-		FeAdd(&check, &vxx, &u) // vx^2+u
-		if FeIsNonZero(&check) == 1 {
-			return false
-		}
-		FeMul(&p.X, &p.X, &SqrtM1)
-
-		FeToBytes(&tmpX, &p.X)
-		for i, v := range tmpX {
-			tmp2[31-i] = v
-		}
-	}
-
-	if FeIsNegative(&p.X) != (s[31] >> 7) {
-		FeNeg(&p.X, &p.X)
-	}
-
-	FeMul(&p.T, &p.X, &p.Y)
-	return true
-}
-
-func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement) {
-	FeMul(&r.X, &p.X, &p.T)
-	FeMul(&r.Y, &p.Y, &p.Z)
-	FeMul(&r.Z, &p.Z, &p.T)
-}
-
-func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement) {
-	FeMul(&r.X, &p.X, &p.T)
-	FeMul(&r.Y, &p.Y, &p.Z)
-	FeMul(&r.Z, &p.Z, &p.T)
-	FeMul(&r.T, &p.X, &p.Y)
-}
-
-func (p *PreComputedGroupElement) Zero() {
-	FeOne(&p.yPlusX)
-	FeOne(&p.yMinusX)
-	FeZero(&p.xy2d)
-}
-
-func geAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) {
-	var t0 FieldElement
-
-	FeAdd(&r.X, &p.Y, &p.X)
-	FeSub(&r.Y, &p.Y, &p.X)
-	FeMul(&r.Z, &r.X, &q.yPlusX)
-	FeMul(&r.Y, &r.Y, &q.yMinusX)
-	FeMul(&r.T, &q.T2d, &p.T)
-	FeMul(&r.X, &p.Z, &q.Z)
-	FeAdd(&t0, &r.X, &r.X)
-	FeSub(&r.X, &r.Z, &r.Y)
-	FeAdd(&r.Y, &r.Z, &r.Y)
-	FeAdd(&r.Z, &t0, &r.T)
-	FeSub(&r.T, &t0, &r.T)
-}
-
-func geSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) {
-	var t0 FieldElement
-
-	FeAdd(&r.X, &p.Y, &p.X)
-	FeSub(&r.Y, &p.Y, &p.X)
-	FeMul(&r.Z, &r.X, &q.yMinusX)
-	FeMul(&r.Y, &r.Y, &q.yPlusX)
-	FeMul(&r.T, &q.T2d, &p.T)
-	FeMul(&r.X, &p.Z, &q.Z)
-	FeAdd(&t0, &r.X, &r.X)
-	FeSub(&r.X, &r.Z, &r.Y)
-	FeAdd(&r.Y, &r.Z, &r.Y)
-	FeSub(&r.Z, &t0, &r.T)
-	FeAdd(&r.T, &t0, &r.T)
-}
-
-func geMixedAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) {
-	var t0 FieldElement
-
-	FeAdd(&r.X, &p.Y, &p.X)
-	FeSub(&r.Y, &p.Y, &p.X)
-	FeMul(&r.Z, &r.X, &q.yPlusX)
-	FeMul(&r.Y, &r.Y, &q.yMinusX)
-	FeMul(&r.T, &q.xy2d, &p.T)
-	FeAdd(&t0, &p.Z, &p.Z)
-	FeSub(&r.X, &r.Z, &r.Y)
-	FeAdd(&r.Y, &r.Z, &r.Y)
-	FeAdd(&r.Z, &t0, &r.T)
-	FeSub(&r.T, &t0, &r.T)
-}
-
-func geMixedSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) {
-	var t0 FieldElement
-
-	FeAdd(&r.X, &p.Y, &p.X)
-	FeSub(&r.Y, &p.Y, &p.X)
-	FeMul(&r.Z, &r.X, &q.yMinusX)
-	FeMul(&r.Y, &r.Y, &q.yPlusX)
-	FeMul(&r.T, &q.xy2d, &p.T)
-	FeAdd(&t0, &p.Z, &p.Z)
-	FeSub(&r.X, &r.Z, &r.Y)
-	FeAdd(&r.Y, &r.Z, &r.Y)
-	FeSub(&r.Z, &t0, &r.T)
-	FeAdd(&r.T, &t0, &r.T)
-}
-
-func slide(r *[256]int8, a *[32]byte) {
-	for i := range r {
-		r[i] = int8(1 & (a[i>>3] >> uint(i&7)))
-	}
-
-	for i := range r {
-		if r[i] != 0 {
-			for b := 1; b <= 6 && i+b < 256; b++ {
-				if r[i+b] != 0 {
-					if r[i]+(r[i+b]<<uint(b)) <= 15 {
-						r[i] += r[i+b] << uint(b)
-						r[i+b] = 0
-					} else if r[i]-(r[i+b]<<uint(b)) >= -15 {
-						r[i] -= r[i+b] << uint(b)
-						for k := i + b; k < 256; k++ {
-							if r[k] == 0 {
-								r[k] = 1
-								break
-							}
-							r[k] = 0
-						}
-					} else {
-						break
-					}
-				}
-			}
-		}
-	}
-}
-
-// GeDoubleScalarMultVartime sets r = a*A + b*B
-// where a = a[0]+256*a[1]+...+256^31 a[31].
-// and b = b[0]+256*b[1]+...+256^31 b[31].
-// B is the Ed25519 base point (x,4/5) with x positive.
-func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte) {
-	var aSlide, bSlide [256]int8
-	var Ai [8]CachedGroupElement // A,3A,5A,7A,9A,11A,13A,15A
-	var t CompletedGroupElement
-	var u, A2 ExtendedGroupElement
-	var i int
-
-	slide(&aSlide, a)
-	slide(&bSlide, b)
-
-	A.ToCached(&Ai[0])
-	A.Double(&t)
-	t.ToExtended(&A2)
-
-	for i := 0; i < 7; i++ {
-		geAdd(&t, &A2, &Ai[i])
-		t.ToExtended(&u)
-		u.ToCached(&Ai[i+1])
-	}
-
-	r.Zero()
-
-	for i = 255; i >= 0; i-- {
-		if aSlide[i] != 0 || bSlide[i] != 0 {
-			break
-		}
-	}
-
-	for ; i >= 0; i-- {
-		r.Double(&t)
-
-		if aSlide[i] > 0 {
-			t.ToExtended(&u)
-			geAdd(&t, &u, &Ai[aSlide[i]/2])
-		} else if aSlide[i] < 0 {
-			t.ToExtended(&u)
-			geSub(&t, &u, &Ai[(-aSlide[i])/2])
-		}
-
-		if bSlide[i] > 0 {
-			t.ToExtended(&u)
-			geMixedAdd(&t, &u, &bi[bSlide[i]/2])
-		} else if bSlide[i] < 0 {
-			t.ToExtended(&u)
-			geMixedSub(&t, &u, &bi[(-bSlide[i])/2])
-		}
-
-		t.ToProjective(r)
-	}
-}
-
-// equal returns 1 if b == c and 0 otherwise, assuming that b and c are
-// non-negative.
-func equal(b, c int32) int32 {
-	x := uint32(b ^ c)
-	x--
-	return int32(x >> 31)
-}
-
-// negative returns 1 if b < 0 and 0 otherwise.
-func negative(b int32) int32 {
-	return (b >> 31) & 1
-}
-
-func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32) {
-	FeCMove(&t.yPlusX, &u.yPlusX, b)
-	FeCMove(&t.yMinusX, &u.yMinusX, b)
-	FeCMove(&t.xy2d, &u.xy2d, b)
-}
-
-func selectPoint(t *PreComputedGroupElement, pos int32, b int32) {
-	var minusT PreComputedGroupElement
-	bNegative := negative(b)
-	bAbs := b - (((-bNegative) & b) << 1)
-
-	t.Zero()
-	for i := int32(0); i < 8; i++ {
-		PreComputedGroupElementCMove(t, &base[pos][i], equal(bAbs, i+1))
-	}
-	FeCopy(&minusT.yPlusX, &t.yMinusX)
-	FeCopy(&minusT.yMinusX, &t.yPlusX)
-	FeNeg(&minusT.xy2d, &t.xy2d)
-	PreComputedGroupElementCMove(t, &minusT, bNegative)
-}
-
-// GeScalarMultBase computes h = a*B, where
-//   a = a[0]+256*a[1]+...+256^31 a[31]
-//   B is the Ed25519 base point (x,4/5) with x positive.
-//
-// Preconditions:
-//   a[31] <= 127
-func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte) {
-	var e [64]int8
-
-	for i, v := range a {
-		e[2*i] = int8(v & 15)
-		e[2*i+1] = int8((v >> 4) & 15)
-	}
-
-	// each e[i] is between 0 and 15 and e[63] is between 0 and 7.
-
-	carry := int8(0)
-	for i := 0; i < 63; i++ {
-		e[i] += carry
-		carry = (e[i] + 8) >> 4
-		e[i] -= carry << 4
-	}
-	e[63] += carry
-	// each e[i] is between -8 and 8.
-
-	h.Zero()
-	var t PreComputedGroupElement
-	var r CompletedGroupElement
-	for i := int32(1); i < 64; i += 2 {
-		selectPoint(&t, i/2, int32(e[i]))
-		geMixedAdd(&r, h, &t)
-		r.ToExtended(h)
-	}
-
-	var s ProjectiveGroupElement
-
-	h.Double(&r)
-	r.ToProjective(&s)
-	s.Double(&r)
-	r.ToProjective(&s)
-	s.Double(&r)
-	r.ToProjective(&s)
-	s.Double(&r)
-	r.ToExtended(h)
-
-	for i := int32(0); i < 64; i += 2 {
-		selectPoint(&t, i/2, int32(e[i]))
-		geMixedAdd(&r, h, &t)
-		r.ToExtended(h)
-	}
-}
-
-// The scalars are GF(2^252 + 27742317777372353535851937790883648493).
-
-// Input:
-//   a[0]+256*a[1]+...+256^31*a[31] = a
-//   b[0]+256*b[1]+...+256^31*b[31] = b
-//   c[0]+256*c[1]+...+256^31*c[31] = c
-//
-// Output:
-//   s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l
-//   where l = 2^252 + 27742317777372353535851937790883648493.
-func ScMulAdd(s, a, b, c *[32]byte) {
-	a0 := 2097151 & load3(a[:])
-	a1 := 2097151 & (load4(a[2:]) >> 5)
-	a2 := 2097151 & (load3(a[5:]) >> 2)
-	a3 := 2097151 & (load4(a[7:]) >> 7)
-	a4 := 2097151 & (load4(a[10:]) >> 4)
-	a5 := 2097151 & (load3(a[13:]) >> 1)
-	a6 := 2097151 & (load4(a[15:]) >> 6)
-	a7 := 2097151 & (load3(a[18:]) >> 3)
-	a8 := 2097151 & load3(a[21:])
-	a9 := 2097151 & (load4(a[23:]) >> 5)
-	a10 := 2097151 & (load3(a[26:]) >> 2)
-	a11 := (load4(a[28:]) >> 7)
-	b0 := 2097151 & load3(b[:])
-	b1 := 2097151 & (load4(b[2:]) >> 5)
-	b2 := 2097151 & (load3(b[5:]) >> 2)
-	b3 := 2097151 & (load4(b[7:]) >> 7)
-	b4 := 2097151 & (load4(b[10:]) >> 4)
-	b5 := 2097151 & (load3(b[13:]) >> 1)
-	b6 := 2097151 & (load4(b[15:]) >> 6)
-	b7 := 2097151 & (load3(b[18:]) >> 3)
-	b8 := 2097151 & load3(b[21:])
-	b9 := 2097151 & (load4(b[23:]) >> 5)
-	b10 := 2097151 & (load3(b[26:]) >> 2)
-	b11 := (load4(b[28:]) >> 7)
-	c0 := 2097151 & load3(c[:])
-	c1 := 2097151 & (load4(c[2:]) >> 5)
-	c2 := 2097151 & (load3(c[5:]) >> 2)
-	c3 := 2097151 & (load4(c[7:]) >> 7)
-	c4 := 2097151 & (load4(c[10:]) >> 4)
-	c5 := 2097151 & (load3(c[13:]) >> 1)
-	c6 := 2097151 & (load4(c[15:]) >> 6)
-	c7 := 2097151 & (load3(c[18:]) >> 3)
-	c8 := 2097151 & load3(c[21:])
-	c9 := 2097151 & (load4(c[23:]) >> 5)
-	c10 := 2097151 & (load3(c[26:]) >> 2)
-	c11 := (load4(c[28:]) >> 7)
-	var carry [23]int64
-
-	s0 := c0 + a0*b0
-	s1 := c1 + a0*b1 + a1*b0
-	s2 := c2 + a0*b2 + a1*b1 + a2*b0
-	s3 := c3 + a0*b3 + a1*b2 + a2*b1 + a3*b0
-	s4 := c4 + a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0
-	s5 := c5 + a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0
-	s6 := c6 + a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0
-	s7 := c7 + a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0
-	s8 := c8 + a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0
-	s9 := c9 + a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0
-	s10 := c10 + a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0
-	s11 := c11 + a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0
-	s12 := a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1
-	s13 := a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2
-	s14 := a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3
-	s15 := a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4
-	s16 := a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5
-	s17 := a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6
-	s18 := a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7
-	s19 := a8*b11 + a9*b10 + a10*b9 + a11*b8
-	s20 := a9*b11 + a10*b10 + a11*b9
-	s21 := a10*b11 + a11*b10
-	s22 := a11 * b11
-	s23 := int64(0)
-
-	carry[0] = (s0 + (1 << 20)) >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[2] = (s2 + (1 << 20)) >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[4] = (s4 + (1 << 20)) >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[6] = (s6 + (1 << 20)) >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[8] = (s8 + (1 << 20)) >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[10] = (s10 + (1 << 20)) >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-	carry[12] = (s12 + (1 << 20)) >> 21
-	s13 += carry[12]
-	s12 -= carry[12] << 21
-	carry[14] = (s14 + (1 << 20)) >> 21
-	s15 += carry[14]
-	s14 -= carry[14] << 21
-	carry[16] = (s16 + (1 << 20)) >> 21
-	s17 += carry[16]
-	s16 -= carry[16] << 21
-	carry[18] = (s18 + (1 << 20)) >> 21
-	s19 += carry[18]
-	s18 -= carry[18] << 21
-	carry[20] = (s20 + (1 << 20)) >> 21
-	s21 += carry[20]
-	s20 -= carry[20] << 21
-	carry[22] = (s22 + (1 << 20)) >> 21
-	s23 += carry[22]
-	s22 -= carry[22] << 21
-
-	carry[1] = (s1 + (1 << 20)) >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[3] = (s3 + (1 << 20)) >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[5] = (s5 + (1 << 20)) >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[7] = (s7 + (1 << 20)) >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[9] = (s9 + (1 << 20)) >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[11] = (s11 + (1 << 20)) >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-	carry[13] = (s13 + (1 << 20)) >> 21
-	s14 += carry[13]
-	s13 -= carry[13] << 21
-	carry[15] = (s15 + (1 << 20)) >> 21
-	s16 += carry[15]
-	s15 -= carry[15] << 21
-	carry[17] = (s17 + (1 << 20)) >> 21
-	s18 += carry[17]
-	s17 -= carry[17] << 21
-	carry[19] = (s19 + (1 << 20)) >> 21
-	s20 += carry[19]
-	s19 -= carry[19] << 21
-	carry[21] = (s21 + (1 << 20)) >> 21
-	s22 += carry[21]
-	s21 -= carry[21] << 21
-
-	s11 += s23 * 666643
-	s12 += s23 * 470296
-	s13 += s23 * 654183
-	s14 -= s23 * 997805
-	s15 += s23 * 136657
-	s16 -= s23 * 683901
-	s23 = 0
-
-	s10 += s22 * 666643
-	s11 += s22 * 470296
-	s12 += s22 * 654183
-	s13 -= s22 * 997805
-	s14 += s22 * 136657
-	s15 -= s22 * 683901
-	s22 = 0
-
-	s9 += s21 * 666643
-	s10 += s21 * 470296
-	s11 += s21 * 654183
-	s12 -= s21 * 997805
-	s13 += s21 * 136657
-	s14 -= s21 * 683901
-	s21 = 0
-
-	s8 += s20 * 666643
-	s9 += s20 * 470296
-	s10 += s20 * 654183
-	s11 -= s20 * 997805
-	s12 += s20 * 136657
-	s13 -= s20 * 683901
-	s20 = 0
-
-	s7 += s19 * 666643
-	s8 += s19 * 470296
-	s9 += s19 * 654183
-	s10 -= s19 * 997805
-	s11 += s19 * 136657
-	s12 -= s19 * 683901
-	s19 = 0
-
-	s6 += s18 * 666643
-	s7 += s18 * 470296
-	s8 += s18 * 654183
-	s9 -= s18 * 997805
-	s10 += s18 * 136657
-	s11 -= s18 * 683901
-	s18 = 0
-
-	carry[6] = (s6 + (1 << 20)) >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[8] = (s8 + (1 << 20)) >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[10] = (s10 + (1 << 20)) >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-	carry[12] = (s12 + (1 << 20)) >> 21
-	s13 += carry[12]
-	s12 -= carry[12] << 21
-	carry[14] = (s14 + (1 << 20)) >> 21
-	s15 += carry[14]
-	s14 -= carry[14] << 21
-	carry[16] = (s16 + (1 << 20)) >> 21
-	s17 += carry[16]
-	s16 -= carry[16] << 21
-
-	carry[7] = (s7 + (1 << 20)) >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[9] = (s9 + (1 << 20)) >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[11] = (s11 + (1 << 20)) >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-	carry[13] = (s13 + (1 << 20)) >> 21
-	s14 += carry[13]
-	s13 -= carry[13] << 21
-	carry[15] = (s15 + (1 << 20)) >> 21
-	s16 += carry[15]
-	s15 -= carry[15] << 21
-
-	s5 += s17 * 666643
-	s6 += s17 * 470296
-	s7 += s17 * 654183
-	s8 -= s17 * 997805
-	s9 += s17 * 136657
-	s10 -= s17 * 683901
-	s17 = 0
-
-	s4 += s16 * 666643
-	s5 += s16 * 470296
-	s6 += s16 * 654183
-	s7 -= s16 * 997805
-	s8 += s16 * 136657
-	s9 -= s16 * 683901
-	s16 = 0
-
-	s3 += s15 * 666643
-	s4 += s15 * 470296
-	s5 += s15 * 654183
-	s6 -= s15 * 997805
-	s7 += s15 * 136657
-	s8 -= s15 * 683901
-	s15 = 0
-
-	s2 += s14 * 666643
-	s3 += s14 * 470296
-	s4 += s14 * 654183
-	s5 -= s14 * 997805
-	s6 += s14 * 136657
-	s7 -= s14 * 683901
-	s14 = 0
-
-	s1 += s13 * 666643
-	s2 += s13 * 470296
-	s3 += s13 * 654183
-	s4 -= s13 * 997805
-	s5 += s13 * 136657
-	s6 -= s13 * 683901
-	s13 = 0
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = (s0 + (1 << 20)) >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[2] = (s2 + (1 << 20)) >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[4] = (s4 + (1 << 20)) >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[6] = (s6 + (1 << 20)) >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[8] = (s8 + (1 << 20)) >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[10] = (s10 + (1 << 20)) >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-
-	carry[1] = (s1 + (1 << 20)) >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[3] = (s3 + (1 << 20)) >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[5] = (s5 + (1 << 20)) >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[7] = (s7 + (1 << 20)) >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[9] = (s9 + (1 << 20)) >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[11] = (s11 + (1 << 20)) >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = s0 >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[1] = s1 >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[2] = s2 >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[3] = s3 >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[4] = s4 >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[5] = s5 >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[6] = s6 >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[7] = s7 >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[8] = s8 >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[9] = s9 >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[10] = s10 >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-	carry[11] = s11 >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = s0 >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[1] = s1 >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[2] = s2 >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[3] = s3 >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[4] = s4 >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[5] = s5 >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[6] = s6 >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[7] = s7 >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[8] = s8 >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[9] = s9 >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[10] = s10 >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-
-	s[0] = byte(s0 >> 0)
-	s[1] = byte(s0 >> 8)
-	s[2] = byte((s0 >> 16) | (s1 << 5))
-	s[3] = byte(s1 >> 3)
-	s[4] = byte(s1 >> 11)
-	s[5] = byte((s1 >> 19) | (s2 << 2))
-	s[6] = byte(s2 >> 6)
-	s[7] = byte((s2 >> 14) | (s3 << 7))
-	s[8] = byte(s3 >> 1)
-	s[9] = byte(s3 >> 9)
-	s[10] = byte((s3 >> 17) | (s4 << 4))
-	s[11] = byte(s4 >> 4)
-	s[12] = byte(s4 >> 12)
-	s[13] = byte((s4 >> 20) | (s5 << 1))
-	s[14] = byte(s5 >> 7)
-	s[15] = byte((s5 >> 15) | (s6 << 6))
-	s[16] = byte(s6 >> 2)
-	s[17] = byte(s6 >> 10)
-	s[18] = byte((s6 >> 18) | (s7 << 3))
-	s[19] = byte(s7 >> 5)
-	s[20] = byte(s7 >> 13)
-	s[21] = byte(s8 >> 0)
-	s[22] = byte(s8 >> 8)
-	s[23] = byte((s8 >> 16) | (s9 << 5))
-	s[24] = byte(s9 >> 3)
-	s[25] = byte(s9 >> 11)
-	s[26] = byte((s9 >> 19) | (s10 << 2))
-	s[27] = byte(s10 >> 6)
-	s[28] = byte((s10 >> 14) | (s11 << 7))
-	s[29] = byte(s11 >> 1)
-	s[30] = byte(s11 >> 9)
-	s[31] = byte(s11 >> 17)
-}
-
-// Input:
-//   s[0]+256*s[1]+...+256^63*s[63] = s
-//
-// Output:
-//   s[0]+256*s[1]+...+256^31*s[31] = s mod l
-//   where l = 2^252 + 27742317777372353535851937790883648493.
-func ScReduce(out *[32]byte, s *[64]byte) {
-	s0 := 2097151 & load3(s[:])
-	s1 := 2097151 & (load4(s[2:]) >> 5)
-	s2 := 2097151 & (load3(s[5:]) >> 2)
-	s3 := 2097151 & (load4(s[7:]) >> 7)
-	s4 := 2097151 & (load4(s[10:]) >> 4)
-	s5 := 2097151 & (load3(s[13:]) >> 1)
-	s6 := 2097151 & (load4(s[15:]) >> 6)
-	s7 := 2097151 & (load3(s[18:]) >> 3)
-	s8 := 2097151 & load3(s[21:])
-	s9 := 2097151 & (load4(s[23:]) >> 5)
-	s10 := 2097151 & (load3(s[26:]) >> 2)
-	s11 := 2097151 & (load4(s[28:]) >> 7)
-	s12 := 2097151 & (load4(s[31:]) >> 4)
-	s13 := 2097151 & (load3(s[34:]) >> 1)
-	s14 := 2097151 & (load4(s[36:]) >> 6)
-	s15 := 2097151 & (load3(s[39:]) >> 3)
-	s16 := 2097151 & load3(s[42:])
-	s17 := 2097151 & (load4(s[44:]) >> 5)
-	s18 := 2097151 & (load3(s[47:]) >> 2)
-	s19 := 2097151 & (load4(s[49:]) >> 7)
-	s20 := 2097151 & (load4(s[52:]) >> 4)
-	s21 := 2097151 & (load3(s[55:]) >> 1)
-	s22 := 2097151 & (load4(s[57:]) >> 6)
-	s23 := (load4(s[60:]) >> 3)
-
-	s11 += s23 * 666643
-	s12 += s23 * 470296
-	s13 += s23 * 654183
-	s14 -= s23 * 997805
-	s15 += s23 * 136657
-	s16 -= s23 * 683901
-	s23 = 0
-
-	s10 += s22 * 666643
-	s11 += s22 * 470296
-	s12 += s22 * 654183
-	s13 -= s22 * 997805
-	s14 += s22 * 136657
-	s15 -= s22 * 683901
-	s22 = 0
-
-	s9 += s21 * 666643
-	s10 += s21 * 470296
-	s11 += s21 * 654183
-	s12 -= s21 * 997805
-	s13 += s21 * 136657
-	s14 -= s21 * 683901
-	s21 = 0
-
-	s8 += s20 * 666643
-	s9 += s20 * 470296
-	s10 += s20 * 654183
-	s11 -= s20 * 997805
-	s12 += s20 * 136657
-	s13 -= s20 * 683901
-	s20 = 0
-
-	s7 += s19 * 666643
-	s8 += s19 * 470296
-	s9 += s19 * 654183
-	s10 -= s19 * 997805
-	s11 += s19 * 136657
-	s12 -= s19 * 683901
-	s19 = 0
-
-	s6 += s18 * 666643
-	s7 += s18 * 470296
-	s8 += s18 * 654183
-	s9 -= s18 * 997805
-	s10 += s18 * 136657
-	s11 -= s18 * 683901
-	s18 = 0
-
-	var carry [17]int64
-
-	carry[6] = (s6 + (1 << 20)) >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[8] = (s8 + (1 << 20)) >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[10] = (s10 + (1 << 20)) >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-	carry[12] = (s12 + (1 << 20)) >> 21
-	s13 += carry[12]
-	s12 -= carry[12] << 21
-	carry[14] = (s14 + (1 << 20)) >> 21
-	s15 += carry[14]
-	s14 -= carry[14] << 21
-	carry[16] = (s16 + (1 << 20)) >> 21
-	s17 += carry[16]
-	s16 -= carry[16] << 21
-
-	carry[7] = (s7 + (1 << 20)) >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[9] = (s9 + (1 << 20)) >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[11] = (s11 + (1 << 20)) >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-	carry[13] = (s13 + (1 << 20)) >> 21
-	s14 += carry[13]
-	s13 -= carry[13] << 21
-	carry[15] = (s15 + (1 << 20)) >> 21
-	s16 += carry[15]
-	s15 -= carry[15] << 21
-
-	s5 += s17 * 666643
-	s6 += s17 * 470296
-	s7 += s17 * 654183
-	s8 -= s17 * 997805
-	s9 += s17 * 136657
-	s10 -= s17 * 683901
-	s17 = 0
-
-	s4 += s16 * 666643
-	s5 += s16 * 470296
-	s6 += s16 * 654183
-	s7 -= s16 * 997805
-	s8 += s16 * 136657
-	s9 -= s16 * 683901
-	s16 = 0
-
-	s3 += s15 * 666643
-	s4 += s15 * 470296
-	s5 += s15 * 654183
-	s6 -= s15 * 997805
-	s7 += s15 * 136657
-	s8 -= s15 * 683901
-	s15 = 0
-
-	s2 += s14 * 666643
-	s3 += s14 * 470296
-	s4 += s14 * 654183
-	s5 -= s14 * 997805
-	s6 += s14 * 136657
-	s7 -= s14 * 683901
-	s14 = 0
-
-	s1 += s13 * 666643
-	s2 += s13 * 470296
-	s3 += s13 * 654183
-	s4 -= s13 * 997805
-	s5 += s13 * 136657
-	s6 -= s13 * 683901
-	s13 = 0
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = (s0 + (1 << 20)) >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[2] = (s2 + (1 << 20)) >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[4] = (s4 + (1 << 20)) >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[6] = (s6 + (1 << 20)) >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[8] = (s8 + (1 << 20)) >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[10] = (s10 + (1 << 20)) >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-
-	carry[1] = (s1 + (1 << 20)) >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[3] = (s3 + (1 << 20)) >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[5] = (s5 + (1 << 20)) >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[7] = (s7 + (1 << 20)) >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[9] = (s9 + (1 << 20)) >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[11] = (s11 + (1 << 20)) >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = s0 >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[1] = s1 >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[2] = s2 >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[3] = s3 >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[4] = s4 >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[5] = s5 >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[6] = s6 >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[7] = s7 >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[8] = s8 >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[9] = s9 >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[10] = s10 >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-	carry[11] = s11 >> 21
-	s12 += carry[11]
-	s11 -= carry[11] << 21
-
-	s0 += s12 * 666643
-	s1 += s12 * 470296
-	s2 += s12 * 654183
-	s3 -= s12 * 997805
-	s4 += s12 * 136657
-	s5 -= s12 * 683901
-	s12 = 0
-
-	carry[0] = s0 >> 21
-	s1 += carry[0]
-	s0 -= carry[0] << 21
-	carry[1] = s1 >> 21
-	s2 += carry[1]
-	s1 -= carry[1] << 21
-	carry[2] = s2 >> 21
-	s3 += carry[2]
-	s2 -= carry[2] << 21
-	carry[3] = s3 >> 21
-	s4 += carry[3]
-	s3 -= carry[3] << 21
-	carry[4] = s4 >> 21
-	s5 += carry[4]
-	s4 -= carry[4] << 21
-	carry[5] = s5 >> 21
-	s6 += carry[5]
-	s5 -= carry[5] << 21
-	carry[6] = s6 >> 21
-	s7 += carry[6]
-	s6 -= carry[6] << 21
-	carry[7] = s7 >> 21
-	s8 += carry[7]
-	s7 -= carry[7] << 21
-	carry[8] = s8 >> 21
-	s9 += carry[8]
-	s8 -= carry[8] << 21
-	carry[9] = s9 >> 21
-	s10 += carry[9]
-	s9 -= carry[9] << 21
-	carry[10] = s10 >> 21
-	s11 += carry[10]
-	s10 -= carry[10] << 21
-
-	out[0] = byte(s0 >> 0)
-	out[1] = byte(s0 >> 8)
-	out[2] = byte((s0 >> 16) | (s1 << 5))
-	out[3] = byte(s1 >> 3)
-	out[4] = byte(s1 >> 11)
-	out[5] = byte((s1 >> 19) | (s2 << 2))
-	out[6] = byte(s2 >> 6)
-	out[7] = byte((s2 >> 14) | (s3 << 7))
-	out[8] = byte(s3 >> 1)
-	out[9] = byte(s3 >> 9)
-	out[10] = byte((s3 >> 17) | (s4 << 4))
-	out[11] = byte(s4 >> 4)
-	out[12] = byte(s4 >> 12)
-	out[13] = byte((s4 >> 20) | (s5 << 1))
-	out[14] = byte(s5 >> 7)
-	out[15] = byte((s5 >> 15) | (s6 << 6))
-	out[16] = byte(s6 >> 2)
-	out[17] = byte(s6 >> 10)
-	out[18] = byte((s6 >> 18) | (s7 << 3))
-	out[19] = byte(s7 >> 5)
-	out[20] = byte(s7 >> 13)
-	out[21] = byte(s8 >> 0)
-	out[22] = byte(s8 >> 8)
-	out[23] = byte((s8 >> 16) | (s9 << 5))
-	out[24] = byte(s9 >> 3)
-	out[25] = byte(s9 >> 11)
-	out[26] = byte((s9 >> 19) | (s10 << 2))
-	out[27] = byte(s10 >> 6)
-	out[28] = byte((s10 >> 14) | (s11 << 7))
-	out[29] = byte(s11 >> 1)
-	out[30] = byte(s11 >> 9)
-	out[31] = byte(s11 >> 17)
-}
-
-// order is the order of Curve25519 in little-endian form.
-var order = [4]uint64{0x5812631a5cf5d3ed, 0x14def9dea2f79cd6, 0, 0x1000000000000000}
-
-// ScMinimal returns true if the given scalar is less than the order of the
-// curve.
-func ScMinimal(scalar *[32]byte) bool {
-	for i := 3; ; i-- {
-		v := binary.LittleEndian.Uint64(scalar[i*8:])
-		if v > order[i] {
-			return false
-		} else if v < order[i] {
-			break
-		} else if i == 0 {
-			return false
-		}
-	}
-
-	return true
-}
diff --git a/vendor/golang.org/x/crypto/ed25519/testdata/sign.input.gz b/vendor/golang.org/x/crypto/ed25519/testdata/sign.input.gz
deleted file mode 100644
index 4103069..0000000
--- a/vendor/golang.org/x/crypto/ed25519/testdata/sign.input.gz
+++ /dev/null
diff --git a/vendor/golang.org/x/crypto/hkdf/example_test.go b/vendor/golang.org/x/crypto/hkdf/example_test.go
deleted file mode 100644
index df84395..0000000
--- a/vendor/golang.org/x/crypto/hkdf/example_test.go
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package hkdf_test
-
-import (
-	"bytes"
-	"crypto/rand"
-	"crypto/sha256"
-	"fmt"
-	"golang.org/x/crypto/hkdf"
-	"io"
-)
-
-// Usage example that expands one master key into three other cryptographically
-// secure keys.
-func Example_usage() {
-	// Underlying hash function to use
-	hash := sha256.New
-
-	// Cryptographically secure master key.
-	master := []byte{0x00, 0x01, 0x02, 0x03} // i.e. NOT this.
-
-	// Non secret salt, optional (can be nil)
-	// Recommended: hash-length sized random
-	salt := make([]byte, hash().Size())
-	n, err := io.ReadFull(rand.Reader, salt)
-	if n != len(salt) || err != nil {
-		fmt.Println("error:", err)
-		return
-	}
-
-	// Non secret context specific info, optional (can be nil).
-	// Note, independent from the master key.
-	info := []byte{0x03, 0x14, 0x15, 0x92, 0x65}
-
-	// Create the key derivation function
-	hkdf := hkdf.New(hash, master, salt, info)
-
-	// Generate the required keys
-	keys := make([][]byte, 3)
-	for i := 0; i < len(keys); i++ {
-		keys[i] = make([]byte, 24)
-		n, err := io.ReadFull(hkdf, keys[i])
-		if n != len(keys[i]) || err != nil {
-			fmt.Println("error:", err)
-			return
-		}
-	}
-
-	// Keys should contain 192 bit random keys
-	for i := 1; i <= len(keys); i++ {
-		fmt.Printf("Key #%d: %v\n", i, !bytes.Equal(keys[i-1], make([]byte, 24)))
-	}
-
-	// Output:
-	// Key #1: true
-	// Key #2: true
-	// Key #3: true
-}
diff --git a/vendor/golang.org/x/crypto/hkdf/hkdf.go b/vendor/golang.org/x/crypto/hkdf/hkdf.go
deleted file mode 100644
index 5bc2463..0000000
--- a/vendor/golang.org/x/crypto/hkdf/hkdf.go
+++ /dev/null
@@ -1,75 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation
-// Function (HKDF) as defined in RFC 5869.
-//
-// HKDF is a cryptographic key derivation function (KDF) with the goal of
-// expanding limited input keying material into one or more cryptographically
-// strong secret keys.
-//
-// RFC 5869: https://tools.ietf.org/html/rfc5869
-package hkdf // import "golang.org/x/crypto/hkdf"
-
-import (
-	"crypto/hmac"
-	"errors"
-	"hash"
-	"io"
-)
-
-type hkdf struct {
-	expander hash.Hash
-	size     int
-
-	info    []byte
-	counter byte
-
-	prev  []byte
-	cache []byte
-}
-
-func (f *hkdf) Read(p []byte) (int, error) {
-	// Check whether enough data can be generated
-	need := len(p)
-	remains := len(f.cache) + int(255-f.counter+1)*f.size
-	if remains < need {
-		return 0, errors.New("hkdf: entropy limit reached")
-	}
-	// Read from the cache, if enough data is present
-	n := copy(p, f.cache)
-	p = p[n:]
-
-	// Fill the buffer
-	for len(p) > 0 {
-		f.expander.Reset()
-		f.expander.Write(f.prev)
-		f.expander.Write(f.info)
-		f.expander.Write([]byte{f.counter})
-		f.prev = f.expander.Sum(f.prev[:0])
-		f.counter++
-
-		// Copy the new batch into p
-		f.cache = f.prev
-		n = copy(p, f.cache)
-		p = p[n:]
-	}
-	// Save leftovers for next run
-	f.cache = f.cache[n:]
-
-	return need, nil
-}
-
-// New returns a new HKDF using the given hash, the secret keying material to expand
-// and optional salt and info fields.
-func New(hash func() hash.Hash, secret, salt, info []byte) io.Reader {
-	if salt == nil {
-		salt = make([]byte, hash().Size())
-	}
-	extractor := hmac.New(hash, salt)
-	extractor.Write(secret)
-	prk := extractor.Sum(nil)
-
-	return &hkdf{hmac.New(hash, prk), extractor.Size(), info, 1, nil, nil}
-}
diff --git a/vendor/golang.org/x/crypto/hkdf/hkdf_test.go b/vendor/golang.org/x/crypto/hkdf/hkdf_test.go
deleted file mode 100644
index cee659b..0000000
--- a/vendor/golang.org/x/crypto/hkdf/hkdf_test.go
+++ /dev/null
@@ -1,370 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-package hkdf
-
-import (
-	"bytes"
-	"crypto/md5"
-	"crypto/sha1"
-	"crypto/sha256"
-	"crypto/sha512"
-	"hash"
-	"io"
-	"testing"
-)
-
-type hkdfTest struct {
-	hash   func() hash.Hash
-	master []byte
-	salt   []byte
-	info   []byte
-	out    []byte
-}
-
-var hkdfTests = []hkdfTest{
-	// Tests from RFC 5869
-	{
-		sha256.New,
-		[]byte{
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-		},
-		[]byte{
-			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-			0x08, 0x09, 0x0a, 0x0b, 0x0c,
-		},
-		[]byte{
-			0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
-			0xf8, 0xf9,
-		},
-		[]byte{
-			0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a,
-			0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a,
-			0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c,
-			0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf,
-			0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18,
-			0x58, 0x65,
-		},
-	},
-	{
-		sha256.New,
-		[]byte{
-			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-			0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-			0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-			0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-			0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-			0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
-			0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-			0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-			0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
-			0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
-		},
-		[]byte{
-			0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-			0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-			0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-			0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
-			0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
-			0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
-			0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
-			0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
-			0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
-			0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
-		},
-		[]byte{
-			0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
-			0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
-			0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
-			0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
-			0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
-			0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
-			0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
-			0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
-			0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
-			0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
-		},
-		[]byte{
-			0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1,
-			0xc8, 0xe7, 0xf7, 0x8c, 0x59, 0x6a, 0x49, 0x34,
-			0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8,
-			0xa0, 0x50, 0xcc, 0x4c, 0x19, 0xaf, 0xa9, 0x7c,
-			0x59, 0x04, 0x5a, 0x99, 0xca, 0xc7, 0x82, 0x72,
-			0x71, 0xcb, 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09,
-			0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8,
-			0x36, 0x77, 0x93, 0xa9, 0xac, 0xa3, 0xdb, 0x71,
-			0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec, 0x3e, 0x87,
-			0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f,
-			0x1d, 0x87,
-		},
-	},
-	{
-		sha256.New,
-		[]byte{
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-		},
-		[]byte{},
-		[]byte{},
-		[]byte{
-			0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f,
-			0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c, 0x5a, 0x31,
-			0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e,
-			0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d,
-			0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a,
-			0x96, 0xc8,
-		},
-	},
-	{
-		sha1.New,
-		[]byte{
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b,
-		},
-		[]byte{
-			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-			0x08, 0x09, 0x0a, 0x0b, 0x0c,
-		},
-		[]byte{
-			0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
-			0xf8, 0xf9,
-		},
-		[]byte{
-			0x08, 0x5a, 0x01, 0xea, 0x1b, 0x10, 0xf3, 0x69,
-			0x33, 0x06, 0x8b, 0x56, 0xef, 0xa5, 0xad, 0x81,
-			0xa4, 0xf1, 0x4b, 0x82, 0x2f, 0x5b, 0x09, 0x15,
-			0x68, 0xa9, 0xcd, 0xd4, 0xf1, 0x55, 0xfd, 0xa2,
-			0xc2, 0x2e, 0x42, 0x24, 0x78, 0xd3, 0x05, 0xf3,
-			0xf8, 0x96,
-		},
-	},
-	{
-		sha1.New,
-		[]byte{
-			0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
-			0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
-			0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
-			0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
-			0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
-			0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
-			0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
-			0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
-			0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
-			0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
-		},
-		[]byte{
-			0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-			0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
-			0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-			0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
-			0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
-			0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
-			0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
-			0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
-			0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
-			0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
-		},
-		[]byte{
-			0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
-			0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
-			0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
-			0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
-			0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
-			0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
-			0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
-			0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
-			0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
-			0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
-		},
-		[]byte{
-			0x0b, 0xd7, 0x70, 0xa7, 0x4d, 0x11, 0x60, 0xf7,
-			0xc9, 0xf1, 0x2c, 0xd5, 0x91, 0x2a, 0x06, 0xeb,
-			0xff, 0x6a, 0xdc, 0xae, 0x89, 0x9d, 0x92, 0x19,
-			0x1f, 0xe4, 0x30, 0x56, 0x73, 0xba, 0x2f, 0xfe,
-			0x8f, 0xa3, 0xf1, 0xa4, 0xe5, 0xad, 0x79, 0xf3,
-			0xf3, 0x34, 0xb3, 0xb2, 0x02, 0xb2, 0x17, 0x3c,
-			0x48, 0x6e, 0xa3, 0x7c, 0xe3, 0xd3, 0x97, 0xed,
-			0x03, 0x4c, 0x7f, 0x9d, 0xfe, 0xb1, 0x5c, 0x5e,
-			0x92, 0x73, 0x36, 0xd0, 0x44, 0x1f, 0x4c, 0x43,
-			0x00, 0xe2, 0xcf, 0xf0, 0xd0, 0x90, 0x0b, 0x52,
-			0xd3, 0xb4,
-		},
-	},
-	{
-		sha1.New,
-		[]byte{
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-		},
-		[]byte{},
-		[]byte{},
-		[]byte{
-			0x0a, 0xc1, 0xaf, 0x70, 0x02, 0xb3, 0xd7, 0x61,
-			0xd1, 0xe5, 0x52, 0x98, 0xda, 0x9d, 0x05, 0x06,
-			0xb9, 0xae, 0x52, 0x05, 0x72, 0x20, 0xa3, 0x06,
-			0xe0, 0x7b, 0x6b, 0x87, 0xe8, 0xdf, 0x21, 0xd0,
-			0xea, 0x00, 0x03, 0x3d, 0xe0, 0x39, 0x84, 0xd3,
-			0x49, 0x18,
-		},
-	},
-	{
-		sha1.New,
-		[]byte{
-			0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
-			0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
-			0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
-		},
-		nil,
-		[]byte{},
-		[]byte{
-			0x2c, 0x91, 0x11, 0x72, 0x04, 0xd7, 0x45, 0xf3,
-			0x50, 0x0d, 0x63, 0x6a, 0x62, 0xf6, 0x4f, 0x0a,
-			0xb3, 0xba, 0xe5, 0x48, 0xaa, 0x53, 0xd4, 0x23,
-			0xb0, 0xd1, 0xf2, 0x7e, 0xbb, 0xa6, 0xf5, 0xe5,
-			0x67, 0x3a, 0x08, 0x1d, 0x70, 0xcc, 0xe7, 0xac,
-			0xfc, 0x48,
-		},
-	},
-}
-
-func TestHKDF(t *testing.T) {
-	for i, tt := range hkdfTests {
-		hkdf := New(tt.hash, tt.master, tt.salt, tt.info)
-		out := make([]byte, len(tt.out))
-
-		n, err := io.ReadFull(hkdf, out)
-		if n != len(tt.out) || err != nil {
-			t.Errorf("test %d: not enough output bytes: %d.", i, n)
-		}
-
-		if !bytes.Equal(out, tt.out) {
-			t.Errorf("test %d: incorrect output: have %v, need %v.", i, out, tt.out)
-		}
-	}
-}
-
-func TestHKDFMultiRead(t *testing.T) {
-	for i, tt := range hkdfTests {
-		hkdf := New(tt.hash, tt.master, tt.salt, tt.info)
-		out := make([]byte, len(tt.out))
-
-		for b := 0; b < len(tt.out); b++ {
-			n, err := io.ReadFull(hkdf, out[b:b+1])
-			if n != 1 || err != nil {
-				t.Errorf("test %d.%d: not enough output bytes: have %d, need %d .", i, b, n, len(tt.out))
-			}
-		}
-
-		if !bytes.Equal(out, tt.out) {
-			t.Errorf("test %d: incorrect output: have %v, need %v.", i, out, tt.out)
-		}
-	}
-}
-
-func TestHKDFLimit(t *testing.T) {
-	hash := sha1.New
-	master := []byte{0x00, 0x01, 0x02, 0x03}
-	info := []byte{}
-
-	hkdf := New(hash, master, nil, info)
-	limit := hash().Size() * 255
-	out := make([]byte, limit)
-
-	// The maximum output bytes should be extractable
-	n, err := io.ReadFull(hkdf, out)
-	if n != limit || err != nil {
-		t.Errorf("not enough output bytes: %d, %v.", n, err)
-	}
-
-	// Reading one more should fail
-	n, err = io.ReadFull(hkdf, make([]byte, 1))
-	if n > 0 || err == nil {
-		t.Errorf("key expansion overflowed: n = %d, err = %v", n, err)
-	}
-}
-
-func Benchmark16ByteMD5Single(b *testing.B) {
-	benchmarkHKDFSingle(md5.New, 16, b)
-}
-
-func Benchmark20ByteSHA1Single(b *testing.B) {
-	benchmarkHKDFSingle(sha1.New, 20, b)
-}
-
-func Benchmark32ByteSHA256Single(b *testing.B) {
-	benchmarkHKDFSingle(sha256.New, 32, b)
-}
-
-func Benchmark64ByteSHA512Single(b *testing.B) {
-	benchmarkHKDFSingle(sha512.New, 64, b)
-}
-
-func Benchmark8ByteMD5Stream(b *testing.B) {
-	benchmarkHKDFStream(md5.New, 8, b)
-}
-
-func Benchmark16ByteMD5Stream(b *testing.B) {
-	benchmarkHKDFStream(md5.New, 16, b)
-}
-
-func Benchmark8ByteSHA1Stream(b *testing.B) {
-	benchmarkHKDFStream(sha1.New, 8, b)
-}
-
-func Benchmark20ByteSHA1Stream(b *testing.B) {
-	benchmarkHKDFStream(sha1.New, 20, b)
-}
-
-func Benchmark8ByteSHA256Stream(b *testing.B) {
-	benchmarkHKDFStream(sha256.New, 8, b)
-}
-
-func Benchmark32ByteSHA256Stream(b *testing.B) {
-	benchmarkHKDFStream(sha256.New, 32, b)
-}
-
-func Benchmark8ByteSHA512Stream(b *testing.B) {
-	benchmarkHKDFStream(sha512.New, 8, b)
-}
-
-func Benchmark64ByteSHA512Stream(b *testing.B) {
-	benchmarkHKDFStream(sha512.New, 64, b)
-}
-
-func benchmarkHKDFSingle(hasher func() hash.Hash, block int, b *testing.B) {
-	master := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}
-	salt := []byte{0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17}
-	info := []byte{0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27}
-	out := make([]byte, block)
-
-	b.SetBytes(int64(block))
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		hkdf := New(hasher, master, salt, info)
-		io.ReadFull(hkdf, out)
-	}
-}
-
-func benchmarkHKDFStream(hasher func() hash.Hash, block int, b *testing.B) {
-	master := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}
-	salt := []byte{0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17}
-	info := []byte{0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27}
-	out := make([]byte, block)
-
-	b.SetBytes(int64(block))
-	b.ResetTimer()
-
-	hkdf := New(hasher, master, salt, info)
-	for i := 0; i < b.N; i++ {
-		_, err := io.ReadFull(hkdf, out)
-		if err != nil {
-			hkdf = New(hasher, master, salt, info)
-			i--
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/asm_s390x.s b/vendor/golang.org/x/crypto/internal/chacha20/asm_s390x.s
deleted file mode 100644
index 98427c5..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/asm_s390x.s
+++ /dev/null
@@ -1,283 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!gccgo,!appengine
-
-#include "go_asm.h"
-#include "textflag.h"
-
-// This is an implementation of the ChaCha20 encryption algorithm as
-// specified in RFC 7539. It uses vector instructions to compute
-// 4 keystream blocks in parallel (256 bytes) which are then XORed
-// with the bytes in the input slice.
-
-GLOBL ·constants<>(SB), RODATA|NOPTR, $32
-// BSWAP: swap bytes in each 4-byte element
-DATA ·constants<>+0x00(SB)/4, $0x03020100
-DATA ·constants<>+0x04(SB)/4, $0x07060504
-DATA ·constants<>+0x08(SB)/4, $0x0b0a0908
-DATA ·constants<>+0x0c(SB)/4, $0x0f0e0d0c
-// J0: [j0, j1, j2, j3]
-DATA ·constants<>+0x10(SB)/4, $0x61707865
-DATA ·constants<>+0x14(SB)/4, $0x3320646e
-DATA ·constants<>+0x18(SB)/4, $0x79622d32
-DATA ·constants<>+0x1c(SB)/4, $0x6b206574
-
-// EXRL targets:
-TEXT ·mvcSrcToBuf(SB), NOFRAME|NOSPLIT, $0
-	MVC $1, (R1), (R8)
-	RET
-
-TEXT ·mvcBufToDst(SB), NOFRAME|NOSPLIT, $0
-	MVC $1, (R8), (R9)
-	RET
-
-#define BSWAP V5
-#define J0    V6
-#define KEY0  V7
-#define KEY1  V8
-#define NONCE V9
-#define CTR   V10
-#define M0    V11
-#define M1    V12
-#define M2    V13
-#define M3    V14
-#define INC   V15
-#define X0    V16
-#define X1    V17
-#define X2    V18
-#define X3    V19
-#define X4    V20
-#define X5    V21
-#define X6    V22
-#define X7    V23
-#define X8    V24
-#define X9    V25
-#define X10   V26
-#define X11   V27
-#define X12   V28
-#define X13   V29
-#define X14   V30
-#define X15   V31
-
-#define NUM_ROUNDS 20
-
-#define ROUND4(a0, a1, a2, a3, b0, b1, b2, b3, c0, c1, c2, c3, d0, d1, d2, d3) \
-	VAF    a1, a0, a0  \
-	VAF    b1, b0, b0  \
-	VAF    c1, c0, c0  \
-	VAF    d1, d0, d0  \
-	VX     a0, a2, a2  \
-	VX     b0, b2, b2  \
-	VX     c0, c2, c2  \
-	VX     d0, d2, d2  \
-	VERLLF $16, a2, a2 \
-	VERLLF $16, b2, b2 \
-	VERLLF $16, c2, c2 \
-	VERLLF $16, d2, d2 \
-	VAF    a2, a3, a3  \
-	VAF    b2, b3, b3  \
-	VAF    c2, c3, c3  \
-	VAF    d2, d3, d3  \
-	VX     a3, a1, a1  \
-	VX     b3, b1, b1  \
-	VX     c3, c1, c1  \
-	VX     d3, d1, d1  \
-	VERLLF $12, a1, a1 \
-	VERLLF $12, b1, b1 \
-	VERLLF $12, c1, c1 \
-	VERLLF $12, d1, d1 \
-	VAF    a1, a0, a0  \
-	VAF    b1, b0, b0  \
-	VAF    c1, c0, c0  \
-	VAF    d1, d0, d0  \
-	VX     a0, a2, a2  \
-	VX     b0, b2, b2  \
-	VX     c0, c2, c2  \
-	VX     d0, d2, d2  \
-	VERLLF $8, a2, a2  \
-	VERLLF $8, b2, b2  \
-	VERLLF $8, c2, c2  \
-	VERLLF $8, d2, d2  \
-	VAF    a2, a3, a3  \
-	VAF    b2, b3, b3  \
-	VAF    c2, c3, c3  \
-	VAF    d2, d3, d3  \
-	VX     a3, a1, a1  \
-	VX     b3, b1, b1  \
-	VX     c3, c1, c1  \
-	VX     d3, d1, d1  \
-	VERLLF $7, a1, a1  \
-	VERLLF $7, b1, b1  \
-	VERLLF $7, c1, c1  \
-	VERLLF $7, d1, d1
-
-#define PERMUTE(mask, v0, v1, v2, v3) \
-	VPERM v0, v0, mask, v0 \
-	VPERM v1, v1, mask, v1 \
-	VPERM v2, v2, mask, v2 \
-	VPERM v3, v3, mask, v3
-
-#define ADDV(x, v0, v1, v2, v3) \
-	VAF x, v0, v0 \
-	VAF x, v1, v1 \
-	VAF x, v2, v2 \
-	VAF x, v3, v3
-
-#define XORV(off, dst, src, v0, v1, v2, v3) \
-	VLM  off(src), M0, M3          \
-	PERMUTE(BSWAP, v0, v1, v2, v3) \
-	VX   v0, M0, M0                \
-	VX   v1, M1, M1                \
-	VX   v2, M2, M2                \
-	VX   v3, M3, M3                \
-	VSTM M0, M3, off(dst)
-
-#define SHUFFLE(a, b, c, d, t, u, v, w) \
-	VMRHF a, c, t \ // t = {a[0], c[0], a[1], c[1]}
-	VMRHF b, d, u \ // u = {b[0], d[0], b[1], d[1]}
-	VMRLF a, c, v \ // v = {a[2], c[2], a[3], c[3]}
-	VMRLF b, d, w \ // w = {b[2], d[2], b[3], d[3]}
-	VMRHF t, u, a \ // a = {a[0], b[0], c[0], d[0]}
-	VMRLF t, u, b \ // b = {a[1], b[1], c[1], d[1]}
-	VMRHF v, w, c \ // c = {a[2], b[2], c[2], d[2]}
-	VMRLF v, w, d // d = {a[3], b[3], c[3], d[3]}
-
-// func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32, buf *[256]byte, len *int)
-TEXT ·xorKeyStreamVX(SB), NOSPLIT, $0
-	MOVD $·constants<>(SB), R1
-	MOVD dst+0(FP), R2         // R2=&dst[0]
-	LMG  src+24(FP), R3, R4    // R3=&src[0] R4=len(src)
-	MOVD key+48(FP), R5        // R5=key
-	MOVD nonce+56(FP), R6      // R6=nonce
-	MOVD counter+64(FP), R7    // R7=counter
-	MOVD buf+72(FP), R8        // R8=buf
-	MOVD len+80(FP), R9        // R9=len
-
-	// load BSWAP and J0
-	VLM (R1), BSWAP, J0
-
-	// set up tail buffer
-	ADD     $-1, R4, R12
-	MOVBZ   R12, R12
-	CMPUBEQ R12, $255, aligned
-	MOVD    R4, R1
-	AND     $~255, R1
-	MOVD    $(R3)(R1*1), R1
-	EXRL    $·mvcSrcToBuf(SB), R12
-	MOVD    $255, R0
-	SUB     R12, R0
-	MOVD    R0, (R9)               // update len
-
-aligned:
-	// setup
-	MOVD  $95, R0
-	VLM   (R5), KEY0, KEY1
-	VLL   R0, (R6), NONCE
-	VZERO M0
-	VLEIB $7, $32, M0
-	VSRLB M0, NONCE, NONCE
-
-	// initialize counter values
-	VLREPF (R7), CTR
-	VZERO  INC
-	VLEIF  $1, $1, INC
-	VLEIF  $2, $2, INC
-	VLEIF  $3, $3, INC
-	VAF    INC, CTR, CTR
-	VREPIF $4, INC
-
-chacha:
-	VREPF $0, J0, X0
-	VREPF $1, J0, X1
-	VREPF $2, J0, X2
-	VREPF $3, J0, X3
-	VREPF $0, KEY0, X4
-	VREPF $1, KEY0, X5
-	VREPF $2, KEY0, X6
-	VREPF $3, KEY0, X7
-	VREPF $0, KEY1, X8
-	VREPF $1, KEY1, X9
-	VREPF $2, KEY1, X10
-	VREPF $3, KEY1, X11
-	VLR   CTR, X12
-	VREPF $1, NONCE, X13
-	VREPF $2, NONCE, X14
-	VREPF $3, NONCE, X15
-
-	MOVD $(NUM_ROUNDS/2), R1
-
-loop:
-	ROUND4(X0, X4, X12,  X8, X1, X5, X13,  X9, X2, X6, X14, X10, X3, X7, X15, X11)
-	ROUND4(X0, X5, X15, X10, X1, X6, X12, X11, X2, X7, X13, X8,  X3, X4, X14, X9)
-
-	ADD $-1, R1
-	BNE loop
-
-	// decrement length
-	ADD $-256, R4
-	BLT tail
-
-continue:
-	// rearrange vectors
-	SHUFFLE(X0, X1, X2, X3, M0, M1, M2, M3)
-	ADDV(J0, X0, X1, X2, X3)
-	SHUFFLE(X4, X5, X6, X7, M0, M1, M2, M3)
-	ADDV(KEY0, X4, X5, X6, X7)
-	SHUFFLE(X8, X9, X10, X11, M0, M1, M2, M3)
-	ADDV(KEY1, X8, X9, X10, X11)
-	VAF CTR, X12, X12
-	SHUFFLE(X12, X13, X14, X15, M0, M1, M2, M3)
-	ADDV(NONCE, X12, X13, X14, X15)
-
-	// increment counters
-	VAF INC, CTR, CTR
-
-	// xor keystream with plaintext
-	XORV(0*64, R2, R3, X0, X4,  X8, X12)
-	XORV(1*64, R2, R3, X1, X5,  X9, X13)
-	XORV(2*64, R2, R3, X2, X6, X10, X14)
-	XORV(3*64, R2, R3, X3, X7, X11, X15)
-
-	// increment pointers
-	MOVD $256(R2), R2
-	MOVD $256(R3), R3
-
-	CMPBNE  R4, $0, chacha
-	CMPUBEQ R12, $255, return
-	EXRL    $·mvcBufToDst(SB), R12 // len was updated during setup
-
-return:
-	VSTEF $0, CTR, (R7)
-	RET
-
-tail:
-	MOVD R2, R9
-	MOVD R8, R2
-	MOVD R8, R3
-	MOVD $0, R4
-	JMP  continue
-
-// func hasVectorFacility() bool
-TEXT ·hasVectorFacility(SB), NOSPLIT, $24-1
-	MOVD  $x-24(SP), R1
-	XC    $24, 0(R1), 0(R1) // clear the storage
-	MOVD  $2, R0            // R0 is the number of double words stored -1
-	WORD  $0xB2B01000       // STFLE 0(R1)
-	XOR   R0, R0            // reset the value of R0
-	MOVBZ z-8(SP), R1
-	AND   $0x40, R1
-	BEQ   novector
-
-vectorinstalled:
-	// check if the vector instruction has been enabled
-	VLEIB  $0, $0xF, V16
-	VLGVB  $0, V16, R1
-	CMPBNE R1, $0xF, novector
-	MOVB   $1, ret+0(FP)      // have vx
-	RET
-
-novector:
-	MOVB $0, ret+0(FP) // no vx
-	RET
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_generic.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_generic.go
deleted file mode 100644
index 523751f..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_generic.go
+++ /dev/null
@@ -1,236 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ChaCha20 implements the core ChaCha20 function as specified
-// in https://tools.ietf.org/html/rfc7539#section-2.3.
-package chacha20
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-
-	"golang.org/x/crypto/internal/subtle"
-)
-
-// assert that *Cipher implements cipher.Stream
-var _ cipher.Stream = (*Cipher)(nil)
-
-// Cipher is a stateful instance of ChaCha20 using a particular key
-// and nonce. A *Cipher implements the cipher.Stream interface.
-type Cipher struct {
-	key     [8]uint32
-	counter uint32 // incremented after each block
-	nonce   [3]uint32
-	buf     [bufSize]byte // buffer for unused keystream bytes
-	len     int           // number of unused keystream bytes at end of buf
-}
-
-// New creates a new ChaCha20 stream cipher with the given key and nonce.
-// The initial counter value is set to 0.
-func New(key [8]uint32, nonce [3]uint32) *Cipher {
-	return &Cipher{key: key, nonce: nonce}
-}
-
-// XORKeyStream XORs each byte in the given slice with a byte from the
-// cipher's key stream. Dst and src must overlap entirely or not at all.
-//
-// If len(dst) < len(src), XORKeyStream will panic. It is acceptable
-// to pass a dst bigger than src, and in that case, XORKeyStream will
-// only update dst[:len(src)] and will not touch the rest of dst.
-//
-// Multiple calls to XORKeyStream behave as if the concatenation of
-// the src buffers was passed in a single run. That is, Cipher
-// maintains state and does not reset at each XORKeyStream call.
-func (s *Cipher) XORKeyStream(dst, src []byte) {
-	if len(dst) < len(src) {
-		panic("chacha20: output smaller than input")
-	}
-	if subtle.InexactOverlap(dst[:len(src)], src) {
-		panic("chacha20: invalid buffer overlap")
-	}
-
-	// xor src with buffered keystream first
-	if s.len != 0 {
-		buf := s.buf[len(s.buf)-s.len:]
-		if len(src) < len(buf) {
-			buf = buf[:len(src)]
-		}
-		td, ts := dst[:len(buf)], src[:len(buf)] // BCE hint
-		for i, b := range buf {
-			td[i] = ts[i] ^ b
-		}
-		s.len -= len(buf)
-		if s.len != 0 {
-			return
-		}
-		s.buf = [len(s.buf)]byte{} // zero the empty buffer
-		src = src[len(buf):]
-		dst = dst[len(buf):]
-	}
-
-	if len(src) == 0 {
-		return
-	}
-	if haveAsm {
-		s.xorKeyStreamAsm(dst, src)
-		return
-	}
-
-	// set up a 64-byte buffer to pad out the final block if needed
-	// (hoisted out of the main loop to avoid spills)
-	rem := len(src) % 64  // length of final block
-	fin := len(src) - rem // index of final block
-	if rem > 0 {
-		copy(s.buf[len(s.buf)-64:], src[fin:])
-	}
-
-	// qr calculates a quarter round
-	qr := func(a, b, c, d uint32) (uint32, uint32, uint32, uint32) {
-		a += b
-		d ^= a
-		d = (d << 16) | (d >> 16)
-		c += d
-		b ^= c
-		b = (b << 12) | (b >> 20)
-		a += b
-		d ^= a
-		d = (d << 8) | (d >> 24)
-		c += d
-		b ^= c
-		b = (b << 7) | (b >> 25)
-		return a, b, c, d
-	}
-
-	// ChaCha20 constants
-	const (
-		j0 = 0x61707865
-		j1 = 0x3320646e
-		j2 = 0x79622d32
-		j3 = 0x6b206574
-	)
-
-	// pre-calculate most of the first round
-	s1, s5, s9, s13 := qr(j1, s.key[1], s.key[5], s.nonce[0])
-	s2, s6, s10, s14 := qr(j2, s.key[2], s.key[6], s.nonce[1])
-	s3, s7, s11, s15 := qr(j3, s.key[3], s.key[7], s.nonce[2])
-
-	n := len(src)
-	src, dst = src[:n:n], dst[:n:n] // BCE hint
-	for i := 0; i < n; i += 64 {
-		// calculate the remainder of the first round
-		s0, s4, s8, s12 := qr(j0, s.key[0], s.key[4], s.counter)
-
-		// execute the second round
-		x0, x5, x10, x15 := qr(s0, s5, s10, s15)
-		x1, x6, x11, x12 := qr(s1, s6, s11, s12)
-		x2, x7, x8, x13 := qr(s2, s7, s8, s13)
-		x3, x4, x9, x14 := qr(s3, s4, s9, s14)
-
-		// execute the remaining 18 rounds
-		for i := 0; i < 9; i++ {
-			x0, x4, x8, x12 = qr(x0, x4, x8, x12)
-			x1, x5, x9, x13 = qr(x1, x5, x9, x13)
-			x2, x6, x10, x14 = qr(x2, x6, x10, x14)
-			x3, x7, x11, x15 = qr(x3, x7, x11, x15)
-
-			x0, x5, x10, x15 = qr(x0, x5, x10, x15)
-			x1, x6, x11, x12 = qr(x1, x6, x11, x12)
-			x2, x7, x8, x13 = qr(x2, x7, x8, x13)
-			x3, x4, x9, x14 = qr(x3, x4, x9, x14)
-		}
-
-		x0 += j0
-		x1 += j1
-		x2 += j2
-		x3 += j3
-
-		x4 += s.key[0]
-		x5 += s.key[1]
-		x6 += s.key[2]
-		x7 += s.key[3]
-		x8 += s.key[4]
-		x9 += s.key[5]
-		x10 += s.key[6]
-		x11 += s.key[7]
-
-		x12 += s.counter
-		x13 += s.nonce[0]
-		x14 += s.nonce[1]
-		x15 += s.nonce[2]
-
-		// increment the counter
-		s.counter += 1
-		if s.counter == 0 {
-			panic("chacha20: counter overflow")
-		}
-
-		// pad to 64 bytes if needed
-		in, out := src[i:], dst[i:]
-		if i == fin {
-			// src[fin:] has already been copied into s.buf before
-			// the main loop
-			in, out = s.buf[len(s.buf)-64:], s.buf[len(s.buf)-64:]
-		}
-		in, out = in[:64], out[:64] // BCE hint
-
-		// XOR the key stream with the source and write out the result
-		xor(out[0:], in[0:], x0)
-		xor(out[4:], in[4:], x1)
-		xor(out[8:], in[8:], x2)
-		xor(out[12:], in[12:], x3)
-		xor(out[16:], in[16:], x4)
-		xor(out[20:], in[20:], x5)
-		xor(out[24:], in[24:], x6)
-		xor(out[28:], in[28:], x7)
-		xor(out[32:], in[32:], x8)
-		xor(out[36:], in[36:], x9)
-		xor(out[40:], in[40:], x10)
-		xor(out[44:], in[44:], x11)
-		xor(out[48:], in[48:], x12)
-		xor(out[52:], in[52:], x13)
-		xor(out[56:], in[56:], x14)
-		xor(out[60:], in[60:], x15)
-	}
-	// copy any trailing bytes out of the buffer and into dst
-	if rem != 0 {
-		s.len = 64 - rem
-		copy(dst[fin:], s.buf[len(s.buf)-64:])
-	}
-}
-
-// Advance discards bytes in the key stream until the next 64 byte block
-// boundary is reached and updates the counter accordingly. If the key
-// stream is already at a block boundary no bytes will be discarded and
-// the counter will be unchanged.
-func (s *Cipher) Advance() {
-	s.len -= s.len % 64
-	if s.len == 0 {
-		s.buf = [len(s.buf)]byte{}
-	}
-}
-
-// XORKeyStream crypts bytes from in to out using the given key and counters.
-// In and out must overlap entirely or not at all. Counter contains the raw
-// ChaCha20 counter bytes (i.e. block counter followed by nonce).
-func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
-	s := Cipher{
-		key: [8]uint32{
-			binary.LittleEndian.Uint32(key[0:4]),
-			binary.LittleEndian.Uint32(key[4:8]),
-			binary.LittleEndian.Uint32(key[8:12]),
-			binary.LittleEndian.Uint32(key[12:16]),
-			binary.LittleEndian.Uint32(key[16:20]),
-			binary.LittleEndian.Uint32(key[20:24]),
-			binary.LittleEndian.Uint32(key[24:28]),
-			binary.LittleEndian.Uint32(key[28:32]),
-		},
-		nonce: [3]uint32{
-			binary.LittleEndian.Uint32(counter[4:8]),
-			binary.LittleEndian.Uint32(counter[8:12]),
-			binary.LittleEndian.Uint32(counter[12:16]),
-		},
-		counter: binary.LittleEndian.Uint32(counter[0:4]),
-	}
-	s.XORKeyStream(out, in)
-}
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_noasm.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_noasm.go
deleted file mode 100644
index 91520d1..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_noasm.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !s390x gccgo appengine
-
-package chacha20
-
-const (
-	bufSize = 64
-	haveAsm = false
-)
-
-func (*Cipher) xorKeyStreamAsm(dst, src []byte) {
-	panic("not implemented")
-}
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go
deleted file mode 100644
index 0c1c671..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!gccgo,!appengine
-
-package chacha20
-
-var haveAsm = hasVectorFacility()
-
-const bufSize = 256
-
-// hasVectorFacility reports whether the machine supports the vector
-// facility (vx).
-// Implementation in asm_s390x.s.
-func hasVectorFacility() bool
-
-// xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only
-// be called when the vector facility is available.
-// Implementation in asm_s390x.s.
-//go:noescape
-func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32, buf *[256]byte, len *int)
-
-func (c *Cipher) xorKeyStreamAsm(dst, src []byte) {
-	xorKeyStreamVX(dst, src, &c.key, &c.nonce, &c.counter, &c.buf, &c.len)
-}
-
-// EXRL targets, DO NOT CALL!
-func mvcSrcToBuf()
-func mvcBufToDst()
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_test.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_test.go
deleted file mode 100644
index bf99330..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_test.go
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package chacha20
-
-import (
-	"encoding/hex"
-	"fmt"
-	"math/rand"
-	"testing"
-)
-
-func TestCore(t *testing.T) {
-	// This is just a smoke test that checks the example from
-	// https://tools.ietf.org/html/rfc7539#section-2.3.2. The
-	// chacha20poly1305 package contains much more extensive tests of this
-	// code.
-	var key [32]byte
-	for i := range key {
-		key[i] = byte(i)
-	}
-
-	var input [16]byte
-	input[0] = 1
-	input[7] = 9
-	input[11] = 0x4a
-
-	var out [64]byte
-	XORKeyStream(out[:], out[:], &input, &key)
-	const expected = "10f1e7e4d13b5915500fdd1fa32071c4c7d1f4c733c068030422aa9ac3d46c4ed2826446079faa0914c2d705d98b02a2b5129cd1de164eb9cbd083e8a2503c4e"
-	if result := hex.EncodeToString(out[:]); result != expected {
-		t.Errorf("wanted %x but got %x", expected, result)
-	}
-}
-
-// Run the test cases with the input and output in different buffers.
-func TestNoOverlap(t *testing.T) {
-	for _, c := range testVectors {
-		s := New(c.key, c.nonce)
-		input, err := hex.DecodeString(c.input)
-		if err != nil {
-			t.Fatalf("cannot decode input %#v: %v", c.input, err)
-		}
-		output := make([]byte, c.length)
-		s.XORKeyStream(output, input)
-		got := hex.EncodeToString(output)
-		if got != c.output {
-			t.Errorf("length=%v: got %#v, want %#v", c.length, got, c.output)
-		}
-	}
-}
-
-// Run the test cases with the input and output overlapping entirely.
-func TestOverlap(t *testing.T) {
-	for _, c := range testVectors {
-		s := New(c.key, c.nonce)
-		data, err := hex.DecodeString(c.input)
-		if err != nil {
-			t.Fatalf("cannot decode input %#v: %v", c.input, err)
-		}
-		s.XORKeyStream(data, data)
-		got := hex.EncodeToString(data)
-		if got != c.output {
-			t.Errorf("length=%v: got %#v, want %#v", c.length, got, c.output)
-		}
-	}
-}
-
-// Run the test cases with various source and destination offsets.
-func TestUnaligned(t *testing.T) {
-	const max = 8 // max offset (+1) to test
-	for _, c := range testVectors {
-		input := make([]byte, c.length+max)
-		output := make([]byte, c.length+max)
-		for i := 0; i < max; i++ { // input offsets
-			for j := 0; j < max; j++ { // output offsets
-				s := New(c.key, c.nonce)
-
-				input := input[i : i+c.length]
-				output := output[j : j+c.length]
-
-				data, err := hex.DecodeString(c.input)
-				if err != nil {
-					t.Fatalf("cannot decode input %#v: %v", c.input, err)
-				}
-				copy(input, data)
-				s.XORKeyStream(output, input)
-				got := hex.EncodeToString(output)
-				if got != c.output {
-					t.Errorf("length=%v: got %#v, want %#v", c.length, got, c.output)
-				}
-			}
-		}
-	}
-}
-
-// Run the test cases by calling XORKeyStream multiple times.
-func TestStep(t *testing.T) {
-	// wide range of step sizes to try and hit edge cases
-	steps := [...]int{1, 3, 4, 7, 8, 17, 24, 30, 64, 256}
-	rnd := rand.New(rand.NewSource(123))
-	for _, c := range testVectors {
-		s := New(c.key, c.nonce)
-		input, err := hex.DecodeString(c.input)
-		if err != nil {
-			t.Fatalf("cannot decode input %#v: %v", c.input, err)
-		}
-		output := make([]byte, c.length)
-
-		// step through the buffers
-		i, step := 0, steps[rnd.Intn(len(steps))]
-		for i+step < c.length {
-			s.XORKeyStream(output[i:i+step], input[i:i+step])
-			if i+step < c.length && output[i+step] != 0 {
-				t.Errorf("length=%v, i=%v, step=%v: output overwritten", c.length, i, step)
-			}
-			i += step
-			step = steps[rnd.Intn(len(steps))]
-		}
-		// finish the encryption
-		s.XORKeyStream(output[i:], input[i:])
-
-		got := hex.EncodeToString(output)
-		if got != c.output {
-			t.Errorf("length=%v: got %#v, want %#v", c.length, got, c.output)
-		}
-	}
-}
-
-// Test that Advance() discards bytes until a block boundary is hit.
-func TestAdvance(t *testing.T) {
-	for _, c := range testVectors {
-		for i := 0; i < 63; i++ {
-			s := New(c.key, c.nonce)
-			z := New(c.key, c.nonce)
-			input, err := hex.DecodeString(c.input)
-			if err != nil {
-				t.Fatalf("cannot decode input %#v: %v", c.input, err)
-			}
-			zeros, discard := make([]byte, 64), make([]byte, 64)
-			so, zo := make([]byte, c.length), make([]byte, c.length)
-			for j := 0; j < c.length; j += 64 {
-				lim := j + i
-				if lim > c.length {
-					lim = c.length
-				}
-				s.XORKeyStream(so[j:lim], input[j:lim])
-				// calling s.Advance() multiple times should have no effect
-				for k := 0; k < i%3+1; k++ {
-					s.Advance()
-				}
-				z.XORKeyStream(zo[j:lim], input[j:lim])
-				if lim < c.length {
-					end := 64 - i
-					if c.length-lim < end {
-						end = c.length - lim
-					}
-					z.XORKeyStream(discard[:], zeros[:end])
-				}
-			}
-
-			got := hex.EncodeToString(so)
-			want := hex.EncodeToString(zo)
-			if got != want {
-				t.Errorf("length=%v: got %#v, want %#v", c.length, got, want)
-			}
-		}
-	}
-}
-
-func BenchmarkChaCha20(b *testing.B) {
-	sizes := []int{32, 63, 64, 256, 1024, 1350, 65536}
-	for _, size := range sizes {
-		s := size
-		b.Run(fmt.Sprint(s), func(b *testing.B) {
-			k := [32]byte{}
-			c := [16]byte{}
-			src := make([]byte, s)
-			dst := make([]byte, s)
-			b.SetBytes(int64(s))
-			b.ResetTimer()
-			for i := 0; i < b.N; i++ {
-				XORKeyStream(dst, src, &c, &k)
-			}
-		})
-	}
-}
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/vectors_test.go b/vendor/golang.org/x/crypto/internal/chacha20/vectors_test.go
deleted file mode 100644
index b441fbd..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/vectors_test.go
+++ /dev/null
@@ -1,578 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package chacha20
-
-// Test vectors for ChaCha20 implementations.
-
-type testCase struct {
-	length int
-	nonce  [3]uint32
-	key    [8]uint32
-	input  string
-	output string
-}
-
-var testVectors = [...]testCase{
-	{
-		length: 0,
-		nonce:  [3]uint32{0x94d13317, 0x6b6a2b3, 0x3ffe0036},
-		key:    [8]uint32{0x9da8a3b6, 0x3abf4ae6, 0xa2f19cae, 0x1068c707, 0x72e4801e, 0xce165d92, 0x61e7028f, 0x82ac3d57},
-		input:  "",
-		output: "",
-	},
-	{
-		length: 5,
-		nonce:  [3]uint32{0x469fadd, 0xee3fcc1e, 0x45cf77b0},
-		key:    [8]uint32{0x3477e02b, 0x45bf809f, 0x27f4a1fa, 0xdb901de8, 0xd8a190dc, 0x1d2c21d4, 0x87bdf2ac, 0xdfbf0000},
-		input:  "23dbad0780",
-		output: "415a3e498d",
-	},
-	{
-		length: 9,
-		nonce:  [3]uint32{0x512a6b49, 0x8df9af6d, 0x5336a2a5},
-		key:    [8]uint32{0xe9124c25, 0x4fd1a373, 0x7945f7bb, 0xeed5f064, 0x29c4185d, 0x3c9acf13, 0x4c94a367, 0x7c2c2c53},
-		input:  "f518831fab69c054a6",
-		output: "cfe40f63f81391484b",
-	},
-	{
-		length: 12,
-		nonce:  [3]uint32{0xca697a9e, 0x6b2f6717, 0xb7859220},
-		key:    [8]uint32{0xfc825020, 0x5ca4410b, 0x7d5285d0, 0x160a1c9d, 0x15470b41, 0x3634742a, 0xe64aa7fa, 0xca0be67a},
-		input:  "805fad1d62951537aeed9859",
-		output: "47bd303f93c3ce04bce44710",
-	},
-	{
-		length: 14,
-		nonce:  [3]uint32{0xcded3db3, 0x35770a7f, 0x6aede9b},
-		key:    [8]uint32{0x44632def, 0xa5e420a7, 0xfc12a8f, 0x63b79a15, 0x337de314, 0xb82fbf16, 0x3104bc57, 0x677c9227},
-		input:  "f4e8a7577affb841cf48392cf5df",
-		output: "f445c0fb7e3d5bfdab47090ddee6",
-	},
-	{
-		length: 15,
-		nonce:  [3]uint32{0x348a50b1, 0x4acc9280, 0x8d6014ce},
-		key:    [8]uint32{0x34bd31a8, 0x2808f47e, 0x9d8b19f9, 0x4df59683, 0x31584348, 0x34a74a45, 0xde174a2, 0x29d4c7dc},
-		input:  "1179b71ec4dc34bd812f742b5a0b27",
-		output: "cc7f80f333c647d6e592e4f7ecc834",
-	},
-	{
-		length: 20,
-		nonce:  [3]uint32{0xc8754703, 0x9188c521, 0xac8ce8a6},
-		key:    [8]uint32{0xe93c79ed, 0xce89162b, 0x116a8366, 0xecdc657f, 0x5bc81d98, 0xff5d2f52, 0x171f3ebb, 0x50773f2f},
-		input:  "7bd94943d55392d0311c413ac755ce0347872ba3",
-		output: "c43665de15136af232675d9d5dbbeca77f3c542a",
-	},
-	{
-		length: 21,
-		nonce:  [3]uint32{0x9a8655cb, 0x6e9d6ea5, 0x5dad705e},
-		key:    [8]uint32{0x3542d5b3, 0x1f7bfd8f, 0x1038abf8, 0x7214e8ec, 0xedd05693, 0x60e663bd, 0xe8e5d506, 0xeea923a2},
-		input:  "1505f669acc5ad9aaa0e993ba8c24e744d13655e1f",
-		output: "26cad1ccf4cf4c49b267ab7be10bc2ffa3ba66bc86",
-	},
-	{
-		length: 25,
-		nonce:  [3]uint32{0x3f202ca4, 0x63fc86, 0x7260a10e},
-		key:    [8]uint32{0xe28ab1d6, 0xe83b3d47, 0x671271ca, 0xb977bcff, 0xa2f64476, 0x311d79b4, 0x180d91d0, 0xec1a6e0c},
-		input:  "20070523ddb4ebf0d5f20fd95aacf47fb269ebadda6879638a",
-		output: "5ce972624cb2b7e7c28f5b865ba08c887911b4f5e361830a4b",
-	},
-	{
-		length: 31,
-		nonce:  [3]uint32{0xcf8671ea, 0x8d72df2f, 0x8b5a538a},
-		key:    [8]uint32{0xe46ca2bb, 0xd06ab5ef, 0xb0e2966b, 0x54dd0c2d, 0x8815d89a, 0x426c30a9, 0x15b0f1e, 0x254bae75},
-		input:  "d10f8050c1186f92e26f351db36490d82ea677498562d8d4f487a0a4058adf",
-		output: "f30c11bc553b2baf6870760d735680897c9fee168f976b2a33ef395fdbd4fc",
-	},
-	{
-		length: 34,
-		nonce:  [3]uint32{0xd1be983a, 0xf5aa389, 0xfa26c7e1},
-		key:    [8]uint32{0x795c6da7, 0x8cb1aadc, 0xa042359a, 0x95ea2e27, 0x128253c4, 0xaabc592f, 0x391e810, 0xf641d971},
-		input:  "e88dc380b7d45a4a762c34f310199587867516fac4a2634022b96a9f862e17714d17",
-		output: "aac98ba3821399e55a5eab5862f7f1bfc63637d700125878c2b17151f306c9aec80e",
-	},
-	{
-		length: 34,
-		nonce:  [3]uint32{0x98f5f4b8, 0x3f181d73, 0x5bf4572e},
-		key:    [8]uint32{0xa86f8cf7, 0x8db41a2b, 0xe0e03156, 0x3dad8a59, 0xb3e4d1ba, 0x75f6fb38, 0xdb94709d, 0xc3db34f3},
-		input:  "b0fcf0a731e2902787309697db2384e1cda07b60002c95355a4e261fb601f034b2b3",
-		output: "b6c8c40ddda029a70a21c25f724cc90c43f6edc407055683572a9f5e9690a1d571bb",
-	},
-	{
-		length: 40,
-		nonce:  [3]uint32{0x7289ae18, 0x7ebe7e50, 0x7d819176},
-		key:    [8]uint32{0x336c07a0, 0x4a2ea22b, 0xa8872f46, 0xa47b5e28, 0xbe645e3f, 0x371c6591, 0xd2dc237a, 0x92c59580},
-		input:  "cf9ec6fa3f0a67488adb5598a48ed916729a1e416d206f9675dfa9fd6585793f274f363bbca348b3",
-		output: "bb7ed8a199aa329dcd18736ce705804ffae8c3e2ba341ae907f94f4672d57175df25d28e16962fd6",
-	},
-	{
-		length: 47,
-		nonce:  [3]uint32{0xfd3181de, 0x8b193e26, 0xbebc799},
-		key:    [8]uint32{0x781a4c2e, 0x27ab55e2, 0x814aaf43, 0xa0bab01, 0x9de62ce0, 0x472b03d2, 0xdfee18e8, 0x8b855b93},
-		input:  "be9a8211d68642310724eda3dd02f63fcc03a101d9564b0ecee6f4ecececcb0099bb26aabee46b1a2c0416b4ac269e",
-		output: "3152f317cf3626e26d02cff9392619ea02e22115b6d43d6dd2e1177c6bb3cb71c4a90c3d13b63c43e03605ec98d9a1",
-	},
-	{
-		length: 51,
-		nonce:  [3]uint32{0x27b02ff6, 0xa510613e, 0x218b22d8},
-		key:    [8]uint32{0x62fc7732, 0xcef06cf4, 0xa4f45ed5, 0x2f96654f, 0x9f2b956e, 0x42b572f4, 0x5bb59c86, 0x35e4784f},
-		input:  "495343a257250f8970f791f493b89d10edba89806b88aaaeb3b5aefd078ba7b765746164bce653f5e6c096dd8499fb76d97d77",
-		output: "62c01f426581551b5b16e8b1a3a23c86bcdd189ab695dbea4bf811a14741e6ebbb0261ef8ae47778a6be7e0ef11697b891412c",
-	},
-	{
-		length: 52,
-		nonce:  [3]uint32{0x9db97a63, 0xff50248, 0xf2b6df56},
-		key:    [8]uint32{0x2b657a8f, 0xfe67575d, 0xaa56d261, 0x30179a97, 0xaefcfff1, 0x9b8eb698, 0x1efe3756, 0xb4ea450c},
-		input:  "e37fbbd3fe37ce5a99d18e5dcb0dafe7adf8b596528708f7d310569ab44c251377f7363a390c653965e0cb8dd217464b3d8f79c1",
-		output: "b07d4c56fb83a49e8d9fc992e1230bb5086fecbd828cdbc7353f61b1a3cec0baf9c5bf67c9da06b49469a999ba3b37916ec125be",
-	},
-	{
-		length: 56,
-		nonce:  [3]uint32{0xc1dfec38, 0x7d7503d3, 0x9a3e3c66},
-		key:    [8]uint32{0x8614d8e7, 0xde9b0413, 0x2a48b4fa, 0xcbbde744, 0xad5ddc5e, 0x9144d83e, 0x74d9d617, 0x230bdb45},
-		input:  "9efab614388a7d99102bcc901e3623d31fd9dd9d3c3338d086f69c13e7aa8653f9ce76e722e5a6a8cbbbee067a6cb9c59aa9b4b4c518bbed",
-		output: "829d9fe74b7a4b3aeb04580b41d38a156ffbebba5d49ad55d1b0370f25abcd41221304941ad8e0d5095e15fbd839295bf1e7a509a807c005",
-	},
-	{
-		length: 63,
-		nonce:  [3]uint32{0xc7e2521c, 0x795499b4, 0xc7946cd7},
-		key:    [8]uint32{0x53fce774, 0x9a4b53bf, 0x5f614134, 0xa3c39414, 0xa8a07c72, 0x93242311, 0x43aeec99, 0x216deb5a},
-		input:  "03b5d7ab4bd8c9a4f47ec122cbeb595bd1a0d58de3bb3dcc66c4e288f29622d6863e846fdfb27a90740feb03a4761c6017250bc0f129cc65d19680ab9d6970",
-		output: "83db55d9eb441a909268311da67d432c732ad6bda0a0dae710d1bce040b91269deb558a68ced4aa5760ca0b9c5efc84e725f297bdbdadbc368bea4e20261c5",
-	},
-	{
-		length: 66,
-		nonce:  [3]uint32{0x1d41f0a1, 0x7c3b7778, 0x6991eea5},
-		key:    [8]uint32{0x1f213e39, 0x56261d14, 0x15fc7c2c, 0x21feccc5, 0xa95684c5, 0x26600506, 0xdadcc06b, 0xf2c810b0},
-		input:  "2f4da518578a2a82c8c855155645838ca431cdf35d9f8562f256746150580ca1c74f79b3e9ae78224573da8b47a4b3cc63fbed8d4e831a6b4d796c124d87c78a66e5",
-		output: "6fc086ded3d1d5566577ccd9971e713c1126ec52d3894f09ab701116c7b5abda959cbb207f4468eb7b6a6b7e1b6d2bc6047f337499d63522f256ee751b91f84f70b6",
-	},
-	{
-		length: 72,
-		nonce:  [3]uint32{0x749f022c, 0xa021dab0, 0x648c2252},
-		key:    [8]uint32{0xa1ace7b0, 0x567a0ea1, 0x52af13b9, 0xcba30c08, 0xe07a6d74, 0x5c3bca39, 0x85b2ac07, 0x3b5afc0},
-		input:  "55739a1738b4a4028021b21549e2661b050e3d830ad9a56f57bfcaca3e0f72051b9ca92411840061083e5e45124d8425061ab26c632ac7852118411ac80026da946357c630f27225",
-		output: "8051bf98f8f2617e159ba205a9342ab700973dd045e09321805eed89e419f37f3211c5aa82666b9a097270babc26d3bfe0c990fe245ae982a31f23cfbf6156b5c8cfb77f340e2bf5",
-	},
-	{
-		length: 74,
-		nonce:  [3]uint32{0x23c16ba8, 0x9fd1cd4e, 0xcb224ecb},
-		key:    [8]uint32{0xb694404a, 0x86b5f198, 0x10fd1bff, 0x13a84e54, 0xab21e509, 0x7443d764, 0x931b3f1, 0x686e87f2},
-		input:  "7ffd8d5970fdee613eeae531d1c673fd379d64b0b6bfedd010433b080b561038f7f266fa7e15d7d8e10d23f21b9d7724bb200b0f58b9250483e784f4a6555d09c234e8d1c549ebb76a8e",
-		output: "c173617e36ea20ce04c490803b2098bd4f1ff4b31fdca1c51c6475ade83892c5f12731652d5774631d55ae2938617a5e9462bb6083328a23a4fba52de50ca9075586f2efc22aae56e3a8",
-	},
-	{
-		length: 81,
-		nonce:  [3]uint32{0xd65f6f29, 0xf3f76219, 0x9a033c9e},
-		key:    [8]uint32{0xeba017c4, 0x69e0421a, 0x449e2317, 0x29858a11, 0xd0c8523a, 0xa8b0c9a2, 0xab2ca84, 0xaf011a45},
-		input:  "7a5766097562361cfaeac5b8a6175e1ceeeda30aec5e354df4302e7700ea48c505da9fdc57874da879480ecfea9c6c8904f330cbac5e27f296b33b667fea483348f031bef761d0b8e318a8132caa7a5943",
-		output: "5e9fbf427c4f0fcf44db3180ea47d923f52bee933a985543622eff70e2b3f5c673be8e05cd7acbcadd8593da454c60d5f19131e61730a73b9c0f87e3921ee5a591a086446b2a0fadd8a4bc7b49a8e83764",
-	},
-	{
-		length: 88,
-		nonce:  [3]uint32{0xc70ee56e, 0xe58ec41, 0xafd96f61},
-		key:    [8]uint32{0x172af2bb, 0x9085d27c, 0x8ca2c44d, 0x8aa148da, 0x290c88b0, 0x88187439, 0x18d54781, 0x633f2cce},
-		input:  "0777c02a2900052d9b79f38387d2c234108a2ad066cbf7df6ea6acc5a3f86b3d6156abb5b18ad4ecf79e171383a1897e64a95ecdbba6aa3f1c7c12fe31283629ff547cb113a826cb348a7c10507cc645fa2eb97b5f22e44d",
-		output: "368c90db3464ba488340b1960e9f75d2c3b5b392bdd5622ff70e85e6d00b1e6a996ba3978ce64f8f2b5a9a90576c8f32b908233e15d2f443cccc98af87745c93c8056603407a3fb37ce0c1f8ab6384cc37c69c98bfecf337",
-	},
-	{
-		length: 92,
-		nonce:  [3]uint32{0x3006da79, 0x2748051d, 0x72c17cdc},
-		key:    [8]uint32{0x60cdb7e8, 0xcecbe928, 0xe19b7ab9, 0x30d61537, 0xa0fbc199, 0x897738bf, 0xdd7705a9, 0x3e5c1763},
-		input:  "cf2dccbcfd781c030376f9019d841ca701cb54a1791f50f50bee0c2bf178182603a4712b5916eebd5001595c3f48283f1ba097ce2e7bf94f2b7fa957ce776e14a7a570093be2de386ececbd6525e72c5970c3e7d35974b8f0b831fbc",
-		output: "7c92b8c75e6eb8675229660cedcb10334965a7737cde7336512d9eff846c670d1fa8f8a427ea4f43e66be609466711fd241ccff7d3f049bda3a2394e5aa2108abc80e859611dbd3c7ba2d044a3ececa4980dd65e823dd110fea7a548",
-	},
-	{
-		length: 96,
-		nonce:  [3]uint32{0xfc0fb1ee, 0x414cc60a, 0x4144bd67},
-		key:    [8]uint32{0x103291c6, 0x822b03b6, 0xd29ab548, 0xc88f3efe, 0x6936056a, 0x28aaa61f, 0xa0df7858, 0xdaa23519},
-		input:  "e08a8949a1bfd6a8c1186b431b6ad59b106ae5552821db69b66dc03fbc4a2b970dcf9c7da4f5082572bc978f8ee27c554c8884b5a450b36d70453348cd6cac9b80c9900cf98a4088803f564bb1281d24507b2f61ba737c8145c71b50eb0f6dfc",
-		output: "73d043acf9dcd758c7299bd1fd1f4100d61ff77d339e279bfbe6f9233b0d9afa24992a9c1c7a19545d469fdfb369c201322f6fe8c633fcdcffef31032bfb41b9fb55506e301d049fd447d61f974a713debeaed886f486a98efd3d6c3f25fbb30",
-	},
-	{
-		length: 103,
-		nonce:  [3]uint32{0xc2030c57, 0x1e3b59e1, 0x607ede1a},
-		key:    [8]uint32{0xd1bac2b5, 0x56a94583, 0x628b479b, 0x3056a51e, 0x69bf8f8f, 0x2df1e03d, 0x4b9d48d2, 0x7df5c379},
-		input:  "a0c302120111f00c99cff7d839cdf43207a7e2f73d5dd888daa00d84254db0e621a72493480420c9c61ce1cfc54188ff525bb7a0e6c1cd298f598973a1de9fd2d79a21401588775b0adbe261ba4e4f79a894d1bd5835b5924d09ba32ef03cb4bc0bd6eb4ee4274",
-		output: "bc714bd7d8399beedc238f7ddeb0b99d94ad6bf8bf54548a3e4b90a76aa5673c91db6482591e8ff9126e1412bce56d52a4c2d89f22c29858e24482f177abacef428d0ae1779f0ae0778c44f9f02fe474da93c35c615b5fad29eca697978891f426714441317f2b",
-	},
-	{
-		length: 109,
-		nonce:  [3]uint32{0xf44dc81f, 0xcf6e03e7, 0xf4966796},
-		key:    [8]uint32{0xd7b12f4, 0x683f4789, 0xc7828fb4, 0x820fc6a0, 0xc51231eb, 0xe46716d7, 0x4036ef93, 0x26afb96c},
-		input:  "ebce290c03c7cb65d053918ba2da0256dc700b337b8c124c43d5da4746888ca78387feea1a3a72c5e249d3d93a1907977dd4009699a15be5da2ca89c60e971c8df5d4553b61b710d92d3453dea595a0e45ae1e093f02ea70608b7b32f9c6aadc661a052f9b14c03ea0117a3192",
-		output: "cbb8c4ec827a1123c1141327c594d4a8b0b4a74b0008115bb9ec4275db3a8e5529a4f145551af29c473764cbaa0794b2d1eb1066f32a07fd39f5f3fe51498c46fba5310ae7c3664571d6a851e673ded3badc25e426f9c6038724779aa6d2d8ec3f54865f7df612e25575635ab5",
-	},
-	{
-		length: 115,
-		nonce:  [3]uint32{0x8d3e461b, 0x7e05c360, 0x3bbbafdd},
-		key:    [8]uint32{0xf9b917c9, 0x9af89bf7, 0x7decbbc9, 0xe7e5ea7b, 0x9b4aab55, 0x90eff6be, 0xa19b6d90, 0xb9f69b1a},
-		input:  "275c97de985aa265332065ccce437770b110737a77dea62137a5d6cb62e9cb8b504d34334a58a71aba153d9b86f21377467b2fafaf54829331bf2ce0009acb37842b7a4b5f152aab650a393153f1ed479abc21f7a6fe205b9852ff2f7f3a0e3bfe76ca9770efada4e29e06db0569a99d08648e",
-		output: "b225aa01d5c438d572deaea51ac12c0c694e0f9dc0ed2884a98e5e2943d52bb4692d7d8f12486de12d0559087e8c09e4f2d5b74e350838aa2bd36023032ccbcae56be75c6a17c59583d81a1fd60e305af5053ac89f753c9347f3040e48405232dc8428c49dcb3d9b899145f5b3bc955f34dbbe",
-	},
-	{
-		length: 119,
-		nonce:  [3]uint32{0x871f33f5, 0xe4fee3ba, 0xcb8c1e93},
-		key:    [8]uint32{0x33124903, 0x7e0287e5, 0xe9d6988f, 0x1962405f, 0x5f21c1b5, 0x2ac695e6, 0x46b200c9, 0x9fda98ba},
-		input:  "ceda15cfffd53ccebe31b5886facd863f6166e02ec65f46f54148860a5c2702e34fd204d881af6055952690cd1ffa8ba4d0e297cc165d981b371932adb935398c987baff335108c5e77f2e5dd5e1ca9a017bc376cbdbe3c0f45e079c212e8986b438444e79cd37927c1479f45c9e75b0076cc9f8679011",
-		output: "a3f1c3f885583b999c85cd118e2ababfa5a2de0c8eb28aacc161b1efee89d8de36ddeb584174c0e92011b8d667cb64009049976082072e6262933dbf7b14839805e1face375b7cbb54f9828ba1ed8aa55634ec5d72b6351feff4d77a3a22b34203b02e096f5e5f9ae9ad6a9dd16c57ce6d94dcc8873d18",
-	},
-	{
-		length: 120,
-		nonce:  [3]uint32{0xef553ce8, 0xdfe120ea, 0x9a047e3a},
-		key:    [8]uint32{0xbef479c1, 0x59554f8b, 0xbf97f089, 0x52316f1e, 0x141e428, 0xff26dc04, 0xe10c8f57, 0xa7568a59},
-		input:  "799bb2d634406753416b3a2b67513293a0b3496ef5b2d019758dedaaac2edd72502fc4a375b3f0d4237bc16b0e3d47e7ddc315c6aef3a23fcae2eb3a6083bc7ac4fd1b5bf0025cc1cb266b40234b77db762c747d3a7b27956cf3a4cf72320fb60c0d0713fa60b37a6cb5b21a599e79d0f06a5b7201aeb5d2",
-		output: "e84dfb3dbaac364085497aeabd197db852d3140c0c07f5f10e5c144c1fe26a50a9877649e88c6fe04283f4b7590a8d0d042ef577693f76f706e31c4979437590fe0ab03d89afb089d1be50ae173ea5458810372838eceac53bf4bac792735d8149e548efb432e236da92bf3168bbcf36f644c23efb478a4e",
-	},
-	{
-		length: 123,
-		nonce:  [3]uint32{0xd98124a0, 0x78cd80aa, 0x3dc55cfc},
-		key:    [8]uint32{0x2286e41, 0xf13e38e3, 0xf735476b, 0x33c44bfc, 0xd7978797, 0x4a9c4595, 0x6080413, 0x1299fdd8},
-		input:  "b2d060bd173955f44ee01b8bfcf0a6fad017c3517e4e8c8da728379f6d54471c955615e2b1effe4ce3d0139df225223c361be1cac416ade10a749c5da324563696dae8272577e44e8588cd5306bff0bfbdb32af3ac7cbc78be24b51baf4d5e47cf8f1d6b0a63ed9359da45c3e7297b2314028848f5816feab885e2",
-		output: "ffa4aa66dd5d39694ae64696bfa96f771accef68f195456ad815751e25c47ed4f27b436f1b3e3fcaa3e0d04133b53559c100cd633ced3d4321fc56225c85d2443727bce40434455aa4c1f3e6768c0fe58ad88b3a928313d41a7629f1ce874d2c8bcf822ebdaebfd9d95a31bb62daab5385eb8eefe026e8cbf1ff7a",
-	},
-	{
-		length: 127,
-		nonce:  [3]uint32{0x53106b0f, 0xdf11fd81, 0x69d1b6f3},
-		key:    [8]uint32{0x736b138, 0x55cde194, 0xf8273c1, 0xf7c268e6, 0x61362bd5, 0xbb3cb455, 0x44d3c9fc, 0x7d56d3fd},
-		input:  "4f0171d7309493a349530940feece3c6200693f9cff38924114d53f723d090fffa3c80731b5ca989d3e924d1fa14266632cb9ab879e1a36df22dc9f8d1dadea229db72fded0c42187c38b9fa263c20e5fb5b4aa80eb90e8616e36d9b8c613b371c402343823184ecad3532058a46cf9e7ea5a9ecad043ac3028cbcc3f36d32",
-		output: "88c773ff34b23e691e14018ba1b2bd48a4a6979b377eb0d68336ce6192dcd5177e6b4f1c4bea2df90af56b35fe2a1d6279d253c0194dcbca9bf136f92d69165b216e4c9d1ce6b3fbe40c71e32c3f4088de352732d0e2bad9c16fd0bb9bde3d6c30257ce063432d09f19da79d49aa7641124a6c9e3f09449e911edbae11a053",
-	},
-	{
-		length: 130,
-		nonce:  [3]uint32{0x5e90ffbd, 0xa898f173, 0x269f9a88},
-		key:    [8]uint32{0x5244e05f, 0xf9adbe9b, 0x9e9f54ac, 0x23460046, 0x6782cdea, 0xba982c96, 0xc721506b, 0xed10f7e3},
-		input:  "8f8d9e18d3212bd20b96d75c06d1a63622fd83d13f79d542e45996135368772ea81511302a0d87e246dd346314cfe019bae8a5c97f567f12d82aca98dfea397c6a47dd0c419f1c609d9c52dcfcbe7eee68b2635954206ed592b7081442ce9ce3187d10ccd41cc856fb924b011f817c676c9419f52a2938c7af5f76755a75eb065411",
-		output: "4e130c5df384b9c3c84aa38a744260735e93783da0337ade99f777e692c5ea276ac4cc65880b4ae9c3b96888760fdddb74bc2e2694bedf1ee6f14619c8015f951ba81b274b466e318d09defe80bdbed57bc213ac4631d2eb14c8e348181d60f6295ceee1e9231ae047830ef4778ff66146621b76974773b5d11c8e17a476450f46ef",
-	},
-	{
-		length: 130,
-		nonce:  [3]uint32{0x308e39e8, 0x9aa4f14f, 0xf511db96},
-		key:    [8]uint32{0x833b5219, 0x4b82e588, 0x4b2d652c, 0x7c8f6ed7, 0xfe4be863, 0x9d3a50e5, 0xb888099b, 0x9f8d1968},
-		input:  "30d2379dd3ceae612182576f9acf6de505ab5a9445fe1a86ae75c5c29429e11c50fd9ec657b29b173a3763b1e171b5a7da1803ba5d64fccb2d32cb7788be194dbca00c3c91774c4c4c8ede48c1027d7cc8b387101a4fe5e44a1d9693b2f627626025072806083aadbced91c9711a0171f52ffb8ed5596cf34130022398c8a1da99c7",
-		output: "b1e8da34ad0189038ee24673979b405ef73fdbdd6f376f800031d64005a4ebed51a37f2180571223848decbea6dd22b198ab9560d7edc047c5d69183dc69b5fca346911d25cb2a1a9f830dc6382ad0024e8c3eef3aa2d155abcfe43bff01956a5e20a862fbed5c5e8df8eed0601a120caac634b068314e221f175baa11ae29002bb9",
-	},
-	{
-		length: 135,
-		nonce:  [3]uint32{0xa5feca5a, 0x753ac1b4, 0xc5a46609},
-		key:    [8]uint32{0xabbf4859, 0x828d9bf6, 0xf7f7aa6d, 0x25208ca2, 0xd7a4c0ad, 0x2fdd3282, 0x2bfcb8c2, 0x8389d84b},
-		input:  "d9404ccdcc8ef128a1b1ace4f9f1669d274ec82aa914cac34b83ac00b236478fd6167e96ec658850c6c139eb0f6fc0dd7191ba9a39828032008f7f37eb9a8df9d6cdd54240e600efe7fc49a674000c5030d825b2c5c96d0f19b8ecdbf4eeb86d3e569c5e3131abc7d6359dd4255284ccacf150d42e7a899536d51ee6db329654a4581c5ac6e419",
-		output: "c5534b5fb40b4834300e9577a9d87440c5272263d06e6aee84aa92cdf5d1b033145d336f26e5fe55c09a7e75753af93d0786dfc1cb435e86c67bd3ec8e766d0801b99e68691e2c3c3ffec539cf62e68285ea9027daa2716cd6f97e8eb7b9e266357a25eb2d4839a829508a6b7228f2832b3cd998f77597ae530430e6e4ecb53eb9efe456863a04",
-	},
-	{
-		length: 135,
-		nonce:  [3]uint32{0x12aa5846, 0x88604f6c, 0xc10d9585},
-		key:    [8]uint32{0x1491ccd6, 0x602f559d, 0xd4080c06, 0x202fabd, 0xffd3f4f8, 0xbf144c17, 0x88bf3f3c, 0x8083375},
-		input:  "231765f832927461f338aceb0f4cf51fd8469348c69c549c1dec7333d4aa4968c1ed58b65ab3fe3d0562600a2b076d56fd9ef91f589752e0455dd1d2e614cacfc0d757a11a4a2264bd38f23d3cca108632201b4f6c3b06477467726dde0c2f3aee01d66d788247663f1d0e66b044da9393ede27b9905b44115b067914961bdade85a2eca2844e1",
-		output: "1dd35f3f774f66d88cb7c2b23820ee078a093d0d85f86c4f103d869f93e2dbdd8a7cb8f101084fe1d7281a71754ec9aac5eb4fca8c365b24ed80e695caace1a8781a5a225938b50b8be96d0499752fdabd4f50d0b6ce396c6e2ca45308d1f2cc5a2a2361a8ca7a334e6ee62d466d74a1b0bf5b352f4ef6d8f8c589b733748bd3d7cda593243fab",
-	},
-	{
-		length: 140,
-		nonce:  [3]uint32{0x1c9d70f0, 0xa088a367, 0x4ec24d2b},
-		key:    [8]uint32{0x494e9775, 0xd07a852, 0xaf8af24a, 0xc65b825c, 0xc5e06780, 0x17fbbace, 0x651d71b5, 0xf548d8ef},
-		input:  "e46841f12d98aeb7710b9162d342895a971b0e3a499886bbb6aa74dc744a28d89a54542b628acdc2f693cb7c03f73fc3b74069bc3f2d000a145fb8a806cdc7d6fa971da09a33b92851cc3d1f6f5646d7fa2b1d564876feefeb63b6e66dba1c0b86ca345235bb822e0f93132346840d2a3d6eb1b541178ea51affc7b31f8da02732cc4e5bcb5d8683ae0a91c9",
-		output: "1dcbfd0bb2b905656c52bd7b1bcdad9b4d434ae9ac221a0d3a316115cdd4a463fa9b3444d2612a4e277d0dcd881fa6e80e59e5a54e35e1a14747aed31edf4ac24214f9d9c329ebe2157620b64efaded9976549bc4aa100d5c15be3f85f700f8a21dfe77590dfee2de9a23cc1ed1e44f32ebf68ca289b097bc13b42802dc7c75309c4afc25b5741839f7db3d5",
-	},
-	{
-		length: 144,
-		nonce:  [3]uint32{0x23067b8b, 0x5b276c6d, 0xaeca6c60},
-		key:    [8]uint32{0x29d64488, 0x893a2973, 0x32e3b4ef, 0x2af3d5d4, 0x95ec01b, 0xc805b64c, 0x884e8b7d, 0x798d7062},
-		input:  "e98e4a9550bdd29e4106f0cc8669dcc646a69438408e9a72c7cdb9b9d437b5f7a13fcb197629541c55bca1f8972a80cd1c1f591a0e24f977cdeb84763eab2648e42286e6473ea95e3a6a43b07a32b6a6cd80fe007ba0cf7f5ac7e651431f5e72690ec52a7134f9757daf0d8eff6b831a229db4ab8288f6bbf81e16fedebe621fd1737c8792cfd15fb3040f4f6a4cbc1e",
-		output: "5c69cf522c058790a3bc38979e172b60e71f7896d362d754edc1668d4f388b3fc0acdf40786d2f34886e107a142b1e724b9b9b171cb0e38fd78b35f8ac5269d74296c39c9f8628d848f57af9d8525a33f19021db2b9c64ba113171ebb3882075019ec7e77b51ce80b063ed41d48dad481d9536c030002a75d15c1c10ce0ec3ff17bc483f8416055a99b53035f4b6ea60",
-	},
-	{
-		length: 148,
-		nonce:  [3]uint32{0x2b079658, 0xbdf5da85, 0x8a75450d},
-		key:    [8]uint32{0x49c9eaa3, 0x62048819, 0x9baacfa5, 0x3870addc, 0x5c682e1, 0xf4f9fff3, 0xa3848e4b, 0xac1ebc1},
-		input:  "ce0f0d900dd0d31749d08631ec59f216a1391f66a73bae81d3b0e2919a461bc9a14d6a01b827e3bcb55bbccf27c1ed574157e6becd5cf47181a73c9d3e865ab48a20551027e560e965876b0e1a256bfa5cb5179bf54bd8ec65e5570e374b853b37bf4b3ef1ec612d288ebc19275fa88da9419e012f957f9b6a7e375b3377db0eb3619c731aebfeb0930772b4020d3a3e90723e72",
-		output: "b06981b57fe184091ef9f8ccf522a5bcdb59bf9a68a3ddb817fdd999a6ecf81053a602141cf1b17017bae592b6b6e64756631a2b29a9e1b4f877c8b2ae30f71bc921e4f34b6f9cd8e587c57a30245f80e95005d0f18f5114400785140e6743da352d921fb4a74632a9c40115ad7706263ac9b41a11609fa0c42fc00f8d60931976162598df63ebad9496dd8943d25a03fa47475c",
-	},
-	{
-		length: 148,
-		nonce:  [3]uint32{0x98e8ab8, 0x84d8e77b, 0xbb305841},
-		key:    [8]uint32{0x46b5f93c, 0xc8b2778d, 0x2cc5278f, 0xd2a3904c, 0x6ce5d4f, 0xc4459e8, 0x4a35c30, 0x2feadc02},
-		input:  "eccfd66bdc691478f354b8423d6a3f20932a1f591d8e6cefa734975fb8ee6881b6dc92c0d1d5ed54fd1999efd7f11ac697a1f130587dd895eb498c9a8fc7d1714c385ec156ecae3bdea2a3462834245e724531d0fedda2b77693a53ed7354b758e875b23cfc83219a091fb2076e7a88cd77f779ed96f8d81ffa3fe5059303ac706086494b9f2982f4f88a0c6fadc3748625004db",
-		output: "925529047d4177b72bf50905ba77e47608815522c1829b24046e439d5451901257903a5409fb910373167e8b7f4fdfa543a477608ddfc11bbd1efc138366961463b9915b302a346b795dd593f6fcf4fa73529b6fe83079552aabbe99474a72806f59688d826675fa7f6649b9f5307e5028853c9821b8c4a1a0fc4bfdc7c8c78b25aeaba2b5821d17b36317381a3bd578917d2504",
-	},
-	{
-		length: 152,
-		nonce:  [3]uint32{0x2e2a6e4a, 0x9a6d488a, 0xf9966cb6},
-		key:    [8]uint32{0x58903bff, 0xc2be173f, 0xe26128b5, 0xb6b6af53, 0x92f8eeb, 0x38cf3336, 0x7fdf90fb, 0x7ae24b37},
-		input:  "f0c7139c69413869bca980d7f192b2bc3f57e34ca4f26164e1a54a234e84e1aa285cc02cfbaef3dfba2dbb52a555ec1f6ef0e89d0b2f0bd1846e65b74444b5f003a7308965e67bed558689be2668ca10ca368fac072e0e4535a031af23b3c37c561e185872b86c9bceddb5c1199e43fb5f735384766d33710460b541b52d3f5b6c108c08e76724bcac7ad2d866a8bbeeea92a3d867660d2e",
-		output: "d2c16c7a242b493038203daec65960de384c030eb698ef6a53c36eabb7556cbfa4770eaa8bc0a2b385ad97495eeb1c03ff4e6efcb804aefa81c177dc62700a9eefe6e8dd10cff5d43a2f47463cab5eb1ee260c3826cac9bfa070f1e0435541a89ebd224d13cc43f8fff12f38091c2b3f2102d5c20d8b1c3ae4f129364bbe9f9ce2147dcf0639668ddb90dffe6a50f939f53fa7ba358e913f",
-	},
-	{
-		length: 155,
-		nonce:  [3]uint32{0x243e0198, 0x884448c, 0x9a31e760},
-		key:    [8]uint32{0x37e017bc, 0x9b1e2e90, 0x15679daa, 0xf94a23ee, 0xda86dfe, 0xc3eea84c, 0xdd199799, 0x6eeffb92},
-		input:  "7024974ebf3f66e25631c0699bcc057be0af06bc60d81a7131acaa620a998e15f385c4eaf51ff1e0a81ae5c6a7442d28a3cdc8aeb9701055e75d39ecac35f1e0ac9f9affb6f9197c0066bf39338a2286316e9d1bb7464398e411da1507c470d64f88d11d86d09e6958fa856583ace697f4ee4edc82618662cb3c5380cb4ce7f01c770aab3467d6367c409a83e447c36768a92fc78f9cbe5698c11e",
-		output: "ff56a3a6e3867588c753260b320c301ce80de8c406545fdd69025abc21ce7430cba6b4f4a08ad3d95dc09be50e67beeff20d1983a98b9cb544b91165f9a0a5b803a66c4e21bd3a10b463b7c1f565e66064f7019362290c77238d72b0ea1e264c0939d76799843439b9f09e220982eb1dc075d449412f838709428a6b8975db25163c58f40bf320514abf7a685150d37a98bac8b34ccb5245edb551",
-	},
-	{
-		length: 160,
-		nonce:  [3]uint32{0xd24e866d, 0xc59d25d8, 0xfcf623f1},
-		key:    [8]uint32{0x5f32cca0, 0x4167cac5, 0xc04943ee, 0x507fa1ec, 0xad8fdfc0, 0x6266fa2d, 0x22f05341, 0x8074143e},
-		input:  "8d79329cf647e966fde65a57fc959223c745801c55312046b791671773cca0af4cd48ead1f316eba0da44aa5d18025eced0c9ed97abaabb24570d89b5b00c179dca15dbae89c0b12bb9e67028e3ae4d6065041b76e508706bec36517a135554d8e6ef7cf3b613cbf894bec65d4dc4e8cb5ca8734ad397238e1e5f528fa11181a57dc71cc3d8c29f3aba45f746b1e8c7faace119c9ba23a05fffd9022c6c85260",
-		output: "60aea840869f7be6fcc5584b87f43d7ba91ed2d246a8f0a58e82c5153772a9561bdf08e31a0a974f8a057b04a238feb014403cd5ffe9cf231db292199198271f9793c9202387f0835a1e1dc24f85dd86cb34608923783fd38226244a2dd745071b27d49cbffebea80d9dacad1578c09852406aa15250de58d6d09cf50c3fcfff3313fac92c8dad5cb0a61ccc02c91cecee3f628e30c666698edecf81831e55ec",
-	},
-	{
-		length: 167,
-		nonce:  [3]uint32{0x30b61047, 0x810cf901, 0x4d681524},
-		key:    [8]uint32{0xe51476d0, 0xdf98008d, 0x59dfe69e, 0xdb39166, 0x6c1e4a4a, 0xfb76165e, 0x5180f185, 0x7359fb35},
-		input:  "85484293a843d2d80b72924b7972dfa97cbe5b8c6bcc096f4d5b38956eb3f13f47b02b0f759ea37014ecdecfb55f2707ef6d7e81fd4973c92b0043eac160aaf90a4f32b83067b708a08b48db7c5900d87e4f2f62b932cf0981de72b4feea50a5eb00e39429c374698cbe5b86cf3e1fc313a6156a1559f73c5bac146ceaaaf3ccf81917c3fdd0b639d57cf19ab5bc98295fff3c779242f8be486ba348bd757ba920ca6579be2156",
-		output: "bb1650260ef2e86d96d39170f355411b6561082dcc763df0e018fdea8f10e9dc48489fb7a075f7f84260aecc10abcfadbc6e1cd26924b25dedb1cc887ada49bb4e3e02006bdd39098ef404c1c320fb3b294ded3e82b3920c8798727badfb0d63853138c29cf1ebf1759423a1457b3d2c252acf0d1cde8165f01c0b2266297e688ff03756d1b06cb79a2cc3ba649d161b8d9ef1f8fb792bd823c4eabb7fb799393f4106ab324d98",
-	},
-	{
-		length: 172,
-		nonce:  [3]uint32{0x42020cbe, 0xad62af90, 0x29e53cd},
-		key:    [8]uint32{0xabad2095, 0x601ec477, 0x3bc923a1, 0x1edede1a, 0x33612355, 0x285b4858, 0xd3fd6714, 0xe0f4bcc3},
-		input:  "a2fc6e1b5281a4e0330eecd1ab4c41670570423173255979953142b78733b2910fa5540e8294208df6ae4f18672d5ac65acf851bcd394e1932db13c81b21e6f165e5538aff862e46126c650bbe055e54b31c78f2f0221d2631d66ef6d3f4c5ae25eada043b74d8770e2c29799c0954d8ccbd17766b79e6e94e88f478db3566a20cb890846917591a07738328d5c05f7ed4695a82607660f1239661faa9af0368aeb89726f13c2aaecf0deaf7",
-		output: "d8fe402a641c388522842385de98be60f87d922c318215947d4b7562d4ca1e2dbc7ee86494e65fb0bfddfdebdb2ae6469312f95b32c722b2720d64bb8d7cc3dd82f9055b1d89f05b77984f91f94ba4ac79c5129cd7c91cc751b0defc3f2799518e372d27aa683f1e7bbd4f55414c48fe8a3a37ac1f179a1a329cda775aec0d31d75a5a38addb1de67c06bddbedf4c8d87abc18c9f9dd072d457ea29ad4dfb109ce7e99a4a82fbe330b0afbb5",
-	},
-	{
-		length: 176,
-		nonce:  [3]uint32{0xa8021c8f, 0x667a02c4, 0x7a68b693},
-		key:    [8]uint32{0xece401c8, 0xfa805a47, 0x6d572fca, 0x9c1c780c, 0x647545e5, 0xd7ef4c11, 0x91dc1e46, 0xba2a694e},
-		input:  "480387bc6d2bbc9e4ced2448d9ec39a4f27abe8cfb46752d773552ad7808a794058962b49e005fef4e403e6a391d1d3f59025eeb5fb8fbbe920f5361862c205d430eac613cd66108f2f2f0bd4d95a8f6ca7bd1f917eaeb388be87d8b7084a2eb98c575034578edf1b3dafff051a59313873a7be78908599e7e1c442d883d3fd3d26787eb7467eed3a3fb2d40046a4460d5d14215565606bcf8b6270af8500e3504d6d27dacf45bace32214472d525fdc",
-		output: "ab81a9c28358dfe12e35a21e96f5f4190afb59214f3cf310c092ab273c63cd73a783d080c7d4db2faccd70d1180b954cd700c0a56b086691e2c2cd735c88e765e2266cd9ebe1830d63df4b34e2611a8abeeca9c8c4fac71135dafb1cb3569540ed1362ddeb744ed62f6fd21de87b836ec2980f165c02506e0c316ae3cf3d18a862954d9781f726ecc1723af4a730ccc6d6de82553450a52499acb58fb2008969401c45b2f20e12b58f308db1d199b4ff",
-	},
-	{
-		length: 176,
-		nonce:  [3]uint32{0x414e687c, 0xc6fc69c2, 0xd3ca12d3},
-		key:    [8]uint32{0x1b51cca, 0xbc8455af, 0x3f904842, 0x6042b452, 0xcd4dd164, 0xda83f3f0, 0xff04b972, 0xf972dd0e},
-		input:  "b274e61059f3215173ae226e30a92ee4b4f8a3da95f2e768e3fac2e54ddac92c200c525f190403a6ef9d13c0661c6a7e52ed14c73b821c9680f1f29711f28a6f3163cf762742ed9474dbea51ff94503a5a404adbbdfbf4c6041e57cb14ea90945dc6cb095a52a1c57c69c5f62ac1a91cd8784b925666335bbfee331820b5f7470bc566f8bbb303366aafe75d77c4df5de2649ed55b2e5e514c3cb9f632b567594a0cf02ec6089a950dbe00554ee4dfb9",
-		output: "a0969730d48ee881792a3927b2f5d279aba9f2ed01e6b31b92d0e1fb8ba7f35a236d838e0ce5f8654957167de864f324c870864b4e7450a6050cd4950aa35e5a1a34a595e88dd6f6396300aff285de369691b6e0e894106dc5b31525e4539c1e56df3ceedbbab1e85da8c0914e816270a4bae3af294b04a3ea6e9ef7e2aab4da5f5370df2706b5e3f000d88179ac756deaa652a1cc85e80ad9622f1bf91a2776262eb7289846d44f7f8192e763cb37aa",
-	},
-	{
-		length: 183,
-		nonce:  [3]uint32{0xdd315c1d, 0x2335da98, 0xe0a0da0f},
-		key:    [8]uint32{0x6419c7d6, 0xd340f42, 0x7af2f4b8, 0x3536cf42, 0x2f68c6fb, 0xac9d855f, 0x7c4d490, 0x9711b1b1},
-		input:  "ee849039c6cd972dc943d2a4468844d130c0150276f4e0889047e2300c3ecc6792c4527bfe9437dad877eb986e6b1aa9b867d1798c9d314243f0a87ec9ee5b601c2554876c87cbf50df3334a077c4152f8b8fef4a2d301ddbfa90c887ece757c3eb6c4fc1e0212d6b5a8bb038acaec28cba064c9b34f5364cb7f0fc2ac4ef2c7ddde0f5ba17014459eaa78f08a46a01882ebf7c6e409dadda250bb899dc8b3b70e160bbcb4412a9963b174d0fc6bc16383a46ffaacb6e0",
-		output: "3e272ded9c0a5cebe7cf17ac03f69eb20f62996e047501b6cc3c8691ddb2780ea72c21a81888bfea96e4373a412c55ca95648390de740102d661143043baec3976230e024477d134b8504a223c36a215b34164c9e9e1fa99a49fdc56f2f04ea525a6b82997d9bbc95c4b5baeab4dec50061efb7c1a757887acb8b47b142e0a2e61885a2c14c4642d83d718a0546b90699adc545a48129603862a1c89d8e665cde54b3ba487754db6d6f5acf6a4b95693cc569577a2dc48",
-	},
-	{
-		length: 185,
-		nonce:  [3]uint32{0xebb44f7c, 0xaf14c7dd, 0x4543cd7a},
-		key:    [8]uint32{0xce71977, 0x99790e86, 0x6510d6dc, 0x37968ae7, 0x2917fb9a, 0x19ef25f, 0xd282d085, 0x6128d043},
-		input:  "0992396a6f29b861dd0bc256e1d1b7dce88435733506a6aa20c62e43afa542d1c46e28b2e6d8e2eacb7c08db05e356fe404684b0e3a9849596db82eb788aa09258c28eb19e9838f757425b4edef12deeca56e30cf030272e325d4246d6e083219b2f965124963ca91f066d47bf5a8282a011a78b0155aa70038259a4a59135f241fd2f88c908b9f4eef7b7df0f3a1c16a52c009b522f89dabd52601bbf6e3ce68732e1a6d444469480f06da218786cf6c9666362e7a7f7be12",
-		output: "545c05a84b5a4fffd1dd623c8f2b11443818560bdb0c26dadd3b694d4790d294b99059f4127b7cca122c4000954d745af96094ff4623f60db33e994bb6903263d775f48d7047427b3a498c2ecde65bd37bcb8ee7e240a1e08c884c0079cab518f4e1c38ba5ea547f4da83b7c6036e4259bee91c42e8fae895df07781cc166f1d50e1550a88ee0244bb2950070714dd80a891aa8a9f0580a67a35cb44609b82a5cc7235f16deea2c4f3667f2c2b33e8eeef944e1abdc25e48fa",
-	},
-	{
-		length: 187,
-		nonce:  [3]uint32{0x35cb7190, 0x212e9a86, 0xbc423ce4},
-		key:    [8]uint32{0xfa19cede, 0x576ae8f2, 0x58055dab, 0x91b3355d, 0x69d2501a, 0x736323c2, 0x266c1385, 0x134f4557},
-		input:  "3b9efcbbb607fad5e9f1263dad014cc5c2617d439fcd980408f4f9a93acb1a33d1c3a22f38c037e4603dfbbfb5571bc08c4a1958cbbf510e3e4dd19007fe15fad7808369149a9c4db7ca0496f7a600a6f2454ee1cffd5a68d45c270e4b53ac9b77f33a1ffbb1804244f57d2b05b8036fe2cda9efead3d4eff074ea5c07128e0b354a4a11ffa179163933bc6bd10d200804cc93b64575746e94e975f990bddcc8a4335e99e2459fbe9bc0e004ffcd6cac52f48ef55cc0637a75c1dc",
-		output: "631ba7301e33236da2477506ea98d3b732447389e849b68e1f09bd5fd814f40dc3247a1012fa654f08e3dda0c104ee2dff12ecf5cb018644de50d70dfb6c8cc1f5f552e5f1e50466bbb538ad6b98fd37f33fe615c326efc9cc97899b829b007f91569fa9b28ce0076c53daedf9cc0f838e22cf1125b86a6a2c2eb4a45dadea45ad00fb4f054e7d6b09c13ab1dd5328debfbf4f1b70af2b8a5b1d02df8a87d7661473e0c180ba4c815f14db87c5bdc15f11a29d8e0ce3d747d5dcd4",
-	},
-	{
-		length: 191,
-		nonce:  [3]uint32{0xccc941ac, 0xdba45b02, 0xab0d7ad6},
-		key:    [8]uint32{0x9b750752, 0xa627090a, 0x967c95f0, 0xf8ff2c3f, 0x69beb97e, 0xa30b99c1, 0xadddc83, 0x443f9baf},
-		input:  "f28a71efd95e963e5e0bc0fcf04d8768ce93cb55dc73c32e6496022e214596314b7f843f5c7b136a371c2776a0bfbdd534dccbe7f55e9d3d3b5e938f2d7e74393e4caf6c38fa4b05c948e31dc6a9126817fa3d7892c478f75ab9f6ab85c0e12091bd06e89c7d3ca8d9dcdd4c21fead3d769a253919c2c72dd068474ea322b7e71cafa31684e05a63e179e6432fb70661792cc626a5060cec9e506b35d9286f15dc53cc220b1826314eec337dd8e7af688e5950b2316c30516620569ea65aab",
-		output: "1bcea54b1bf4e6e17f87e0d16388abe49b988b9c785b31f67f49f2ca4011ecd2ad5283d52ef707dd3b803e73a17663b5bfa9027710e045a0da4237f77a725cf92792b178575456de731b2971718937dd0e9ea12558c3fa06e80bbf769e9799f7470db5b91476d6175f1a6d8e974fd505854c1230b252bb892a318e6d0c24dcc9ecb4861769cd746abab58805bc41c6086a6d22b951fba57b00c5b78f6dcb2831715b9d4d788b11c06086f1d6e6279cd130bc752218d7836abc77d255a9e7a1",
-	},
-	{
-		length: 198,
-		nonce:  [3]uint32{0x987e7c58, 0xcc839a94, 0x30952e60},
-		key:    [8]uint32{0xe34a286f, 0x4adcd996, 0x97168712, 0xa82dde8, 0x14249e5, 0x5e82810b, 0xb4a445e8, 0x9579adb0},
-		input:  "c1d1ede73bd89b7c3d4ea43b7d49c065a99f789c57452670d1f92f04f2e26f4f5325c825f545016c854f2db2b3448f3dc00afe37c547d0740223515de57fd7a0861b00acfb39931dc9b1681035d69702183e4b9c6559fb8196acbf80b45e8cc5348b638c6d12cea11f6ef3cc370073c5467d0e077d2fb75e6bf89cea9e93e5cf9612862219ca743ef1696783140d833cd2147d8821a33310e3a49360cb26e393b3fee6dba08fcda38d1b7e2310ec1f715e3d8fa0c6b5e291eea07c25afd5c82759a834a89cc5",
-		output: "11a8493cdc495c179f0d29c2b4672997205a9080f596ee3c80d79b55162b1c875ac18eb94bf2a9e05b08024f524a1e9665912394a330c593d23260e6bdf87620c10a48f678693196fb744c49054182fba667c601e7b7ebf0f068e8d69ba004b804fda616a4a0d5350e1a3bd424b8266462be282308219c578569aefc1ccd09ecdf5da283356c9e524e14e69d25b0e19643dab26f54373a7272b43755c3f1ddaee6c5fb9e8e093110c41697e95f73a68c75454e050239197c9fbd8cec76698bd11894ebf6e2b2",
-	},
-	{
-		length: 204,
-		nonce:  [3]uint32{0x851f025a, 0xe6f3c800, 0x85ae7530},
-		key:    [8]uint32{0x2d0dbe47, 0xda05e465, 0x42f6b3b2, 0x7026e79e, 0x9e446680, 0x691df976, 0xf7b23da2, 0xbb3421fa},
-		input:  "37b2dc4b6a5203d3a753d2aeffcdaed5a7c1741ed04d755dd6325902128f63b6981f93c8cc540f678987f0ddb13aae6965abb975a565f0769528e2bc8c6c19d66b8934f2a39f1234f5a5e16f8f0e47789cd3042ca24d7e1d4ddb9f69d6a96e4fd648673a3a7e988a0730229512382caaded327b6bbbbd00a35df681aca21b186bc7ac3356d50889bbf891839a22bb85db4c00bfa43717b26699c485892eb5e16d1034b08d3afa61f3b5f798af502bba33d7281f2f1942b18fb733ca983244e57963615a43b64184f00a5e220",
-		output: "b68c7a2a1c8d8c8a03fc33495199c432726b9a1500bc5b0f8034ce32c3e3a78c42c1078e087665bd93c72a41df6bfa4e5beb63e3d3226aeeba686128229a584fab0c8c074a65cef417ad06ab1565675a41cf06bb0fb38f51204eccccb75edd724cdd16b1d65a272f939c01508f0385ca55ac68a0e145806317cc12e6848b1124943a6b2d99a8c92083fc5f31ab2e7354db3f8f2d783dbf1cfec9c54f8bfcb93d6f28ef66f18f19b0fab8836458e9b09bee742ba936cb2b747dd9dcf97ca7f6c82bf0af6f1b433592d65143fe",
-	},
-	{
-		length: 210,
-		nonce:  [3]uint32{0xaebfd97f, 0xf583442d, 0x15ab2f1f},
-		key:    [8]uint32{0xd3d1cf9b, 0xe43187e6, 0x5071a757, 0x412a83b4, 0x3f27716f, 0x17fdc488, 0x271f77ed, 0x6c4bb056},
-		input:  "68c2c5612912b5f994172720130dff092ee85a2c1395111efa64d5a281ca864d3db9600e685854d81c6de7e8747b92fb7c4c2efa829d3d4c0c9fc9d689e2e5c84c9eae8ba4ab536fb6c7523124b9e9f2997f0b36e05fb16163d6952eee066dd22fb7585925ffded0204cc76818bcead0d1f8095ca2cf9cd1ddcd0361b9c9451940e14332dac4e870e8b2af57f8c55996447e2a8c9d548255fe3ed6c08aedaf05bb599743ecb0df8655152bbb162a52e3f21bea51cb8bf29f6df8525eb1aa9f2dd73cd3d99f4cca31f90c05316a146aab2b5b",
-		output: "d0ae327fa3c4d6270a2750b1125145bdeef8ab5d0a11662c25372e56f368c82c6f5fc99115a06a5968f22ffe1e4c3034c231614dd6304e6853090c5940b4d1f7905ef4588356d16d903199186167fec57e3d5ce72c900fe1330a389200ed61eec0bdc3672554f1588ec342961bf4be874139b95df66431178d1d10b178e11fcbd26963ff589d5d5faf301b7774a56bbfa836112a6ea9c3026ebdd051085f9131132c2700674bef6e6c2c5b96aace94eb2ba6c0e0aef0eefa88995e742ca51ac50af83683b801b7c2c5af4880e2b344cc5564",
-	},
-	{
-		length: 216,
-		nonce:  [3]uint32{0xf9e973b8, 0x2485a6a7, 0x2ea7dee6},
-		key:    [8]uint32{0x96edef11, 0x8cf57f26, 0xb6e3a83c, 0x9ef434c6, 0x4607ea48, 0xace87e4d, 0xa0d87475, 0x3a9c9458},
-		input:  "fed3d1efa309c8b50cb9da02b95167f3b77c76e0f213490a404f049270a9c105158160357b7922e6be78bc014053360534add61c2052265d9d1985022af6c2327cf2d565e9cef25a13202577948c01edc22337dc4c45defe6adbfb36385b2766e4fa7e9059b23754b1bad52e42fce76c87782918c5911f57a9394a565620d4b2d46716aa6b2ba73e9c4001298c77bfdca6e9f7df8c20807fa71278bd11d6c318ed323584978ad345c9d383b9186db3bd9cec6d128f43ff89998f315dd07fa56e2230c89d803c1c000a1b749107a3159a54398dac37487d9a",
-		output: "6a95fba06be8147a269599bccda0ce8f5c693398a83738512e972808ec2f25bc72402d4bcd1bc808cc7772b6e863b0e49d1d70c58fcf4fcaa442215eeb3a4648ade085177b4e7a0b0e2198f0acf5465c97bd63f93781db3f0b9a0a184c3e06a76c4793a13923f83b2242b62511c2edff00b5304584cbe317c538de23785d2504fae8faabee81c5315298186ce3dcbf63370d1ccd9efec718cbc90b3d2e0b0b6aefb3a9b31e4311f8f518be22fdc2b0f00e79a283701c53f6936dd63734ecb24480d5365d1a81392498faf9a1ddee577007acc5f8c87895be",
-	},
-	{
-		length: 217,
-		nonce:  [3]uint32{0xe3bd4c44, 0xa3b75a31, 0xfe92010f},
-		key:    [8]uint32{0xdd05ab8b, 0x5ac7cd1, 0xb8113720, 0x53524706, 0x8e0ceea1, 0x52eb23e7, 0x1c85730b, 0xb33914d5},
-		input:  "d776bee5625d29a2ebf6fec4df94d2b9ac62e8e7c56704fd38a87ee932b787cbc555621535e76ea30183cb0ee30604f485b541f45feb8c01b9750d37fded5cdffbbc34fb90fdc9c7c7ddf949a1d50b796f1ea5db437238c7fb83c4b22c9e491f75b33d84746f1cd10bfda56851b8514ff0ded0adfd5092a66a85202d06bd967485d06a2c56011110da74bf40b6e59f61b0273164744da02ce2b285d5c3f03aee79eea4d4503e517177692ed3bb035071d77fc1b95c97a4d6cc0d41462ae4a357edf478d457c4805fa586515614697e647e19271091d5734d90",
-		output: "60e9b2dd15da511770162345251edfb15cea929fb79285a42f6c616dfde6befc77f252e653b2d7902a403032fc4ce4934620931a2ec952a8d0f14bf1c0b65cc287b23c2300999ed993446eb416749bf0c9c7dfe60181903e5d78a92d85e7a46b5e1f824c6004d851810b0875ec7b4083e7d861aabdd251b255b3f1fd1ee64619a17d97fde45c5704ab1ef28242d607d9501709a3ac28ee7d91a3aac00cd7f27eb9e7feaf7279962b9d3468bb4367e8e725ecf168a2e1af0b0dc5ca3f5a205b8a7a2aae6534edd224efa2cf1a9cd113b372577decaaf83c1afd",
-	},
-	{
-		length: 218,
-		nonce:  [3]uint32{0xcdabfd50, 0xd10d5b99, 0x9e160a85},
-		key:    [8]uint32{0x8231a4e9, 0x89f33c8b, 0xf96b11b, 0x853cae9d, 0xf6624a33, 0xee9523ee, 0x28bb7853, 0x688ac6f8},
-		input:  "4f57848ff5398e61bcafd4d4609bcd616ef109c0f5aa826c84f0e5055d475c6a3a90f978a38d0bd773df153179465ab6402b2c03a4bf43de1f7516eb8626d057ae1ab455316dd87f7636b15762a9e46a332645648b707b139e609b377165207bb501b8bccfa05f1bf0084631c648279afdf51c26798899777812de520f6a6f0d3c7f3ef866982f5d57f9c8d81c9a4eabb036651e8055a43c23a7f558b893dd66d8534bf8d179d8aa7d9e8987cfdaaa7b5a9381ba9c79d5c1161b1bdbd30defdd304ee07f19b7ba829a0d5b40a04b42edd6407b68399caac69069",
-		output: "e096cc68956ed16d2dea1154a259e01647913eeea488be0b54bd1816c781a35e161772ae1f7a26b82e864ade297a51cc9be518641b2e5f195b557ec6fc183e4e5c1fc01d84fe6ca75e5b073af8339427569b1b8ee7fcff0ffa5e7e6237987c40deec0abf091c06a3b28469c8f955fc72e4f3727557f78e8606123e0639dff782e954d55e236448f4223ff6301accda9f8fa6cd43a8d6381e5dde61851a5aec0f23aeca7262659bc793ce71fa7992f80e44611ae080b7d36066e5c75c30851306f0af514591d4d5034ecdf0d6c704bfdf85473f86141c9eb59377",
-	},
-	{
-		length: 219,
-		nonce:  [3]uint32{0x67de323f, 0xa0442ac9, 0x9d77b1d9},
-		key:    [8]uint32{0xca8d33d4, 0x834349d9, 0x5e68d581, 0x99a7c30e, 0xdc7f6038, 0x697e8b63, 0x284c2ece, 0xee3e3bfa},
-		input:  "046a61c0f09dcbf3e3af52fab8bbcded365092fad817b66ed8ca6603b649780ed812af0150adbc8b988c43a6ada564a70df677661aff7b9f380d62977d8180d2506c63637c0585dcef6fe3f7a2cf3bbb7b3d0df7769f04bf0f2e3af9439ab7615c304b32055aea0fc060890beb34fa9f90084814b6ed7363b400dfc52ee87925c5b4a14a98e3b50c7f65adc48c89ddd6414626c5e0bdefabab85c4a0e012243e682d4931be413af62fd7123ab7e7774fcae7e423bf1d3a31d036195437e9ea8f38aa40182daa9aacf3c9f3d90cc0050977c6065c9a46bcca6ba745",
-		output: "cd5a6a263e3ee50dda0e34c614b94c3ec1b14b99a2f4095a6b5715fdfc3449fcdf8a09d1ae02d4c52e5e638f1ee87a4a629f99f15a23dd06718792f24285f5a415e40f698752c697ee81f2f9248da1506ce04a7f489f8e2b02e6834671a2da79acc1cdfb78ea01822d09a1c4a87ffa44e56c4f85f97507044cf946ccb6a2e06e2917bac013f608d75ee78fa422a5efc9c569226bf7068d4705fde3a9fad2030256db0acf9a1d12666e0acf9f5346ad62e5af4c01a008d67ab1224b3e98278d073116ff966cdc779fb3aff985ec9411a3eefa042d71dd4ae5b15d5e",
-	},
-	{
-		length: 221,
-		nonce:  [3]uint32{0xa36a3d5a, 0x1747a05f, 0x5440eb4},
-		key:    [8]uint32{0x2d701ee6, 0x143d5a1a, 0xbb67b9ab, 0xabc88ccc, 0x20baad8f, 0x6507e48b, 0xdb1e1b39, 0x9e521d80},
-		input:  "af516216f74a6344cbe458cbba820f7e25c0b10aa84b790da2ee6317e059171076d7246c2878be83fc00c200d546c007f849e4c163d52c7b0da31beff4abff481be3266b92e668cf4dd1c84d9d7b3e5191dcd6ddb51d17d337621046e83e9ac035fccfb239648bc3c6fd340fbb50707e5a33b3ef439d292192d0e4bc727690c61450e5a28789e5ea50e746bc66d039493e080fb70e9ae06d89004cb71de8178941c422f1e9862492fc9149a4864ff52b1277b9f5a63c2f16e9adb5263cf65a034a62ebb0f1a385d2681c87a35f1c45670b4edef1c68fe9544fcf411d95",
-		output: "b22ffd8f0e549bd3e0206d7f01ff222f92d39b41cf995a331d5ef0cf5c24bcc3ddb36e64d351b5755400246fe4989b5f912e18daa46cdd33e52dafbd2872f16e94220b56315d72c1dbb1525fd34831d7202970c11711ff36de3fc479407c34fef0aea86e172f9beb0f393194355b9dd59625639f4a6bf72ba571c229f2fb053c1114e82793deb2dfe8232f1a327949689d2fb2820662dcd2a39a2546c7df12b3ff7e87e58c74badf568cddebd3c558f0f7874c834c4b8aa988653f138ec79620f5e3ed737690928a30f981dca9f2920ac7307607063b40f87c204de47c",
-	},
-	{
-		length: 223,
-		nonce:  [3]uint32{0xb92be022, 0x1e1257c7, 0xad7c01e},
-		key:    [8]uint32{0xca1dbb9c, 0xaadb9504, 0x77b8a95c, 0xc50deb5e, 0x2dbc0fb8, 0x9e654bc2, 0x94d8925a, 0xfe9cfb66},
-		input:  "a3d70bdb509f10bb28a8caab96db61652467cf4d8e608ee365699d6148d4e84d5d93bdabe29aa4f0bc8ee155f0b1fb73293c5293929eaacdd070e770c7cccfb2de120b0c3811abeeddaf77b7214a375ca67d618a5d169bb274a477421d71a651cfb9370bcf7e0d38f913754c11002089cf6cd6a8de1c8a937fb216591d57b37efdf3797f280773950f7eddeb9c3385c8315ff5ff581c64610a86ada7ff6a1657e262df94892dff9fdfb6e958d101f4c26296470c138dc4e1ca4bb565b3ff877a7f78b3d11d64b7c24e27ba6f6b06f6e368f5ac218cd5d11b815ab0987678eb",
-		output: "646314264896a6e25601e536f6e783d465b2ead1e0be4422bc9cc8eacabae4a749ad533eb28091be8397328dcfb34c92006bbda930ab070ed7b806095bb1c8f476350e7b08ffbd4d7d6055c8defaa8deff9d54f5215c2d7db27ce09e08f5d87a859145ea3126e2a01882921c3fddef3985bd451bca44063258390aec8ec725b07d064314fe43a9c83e9287b47616dfefbf539b82da209aa08a6d3176b7e3b4be4a17d44e581280a684e4a64414649bfcea82b541729f8178b580e8b972a89f5b8c4f9b68205e9396d8ae5e81873b61da074080fd44c52d50fb0880ee9c35da",
-	},
-	{
-		length: 224,
-		nonce:  [3]uint32{0x5091927, 0x661c75ba, 0xc23dad},
-		key:    [8]uint32{0x2e00499d, 0xafdc63db, 0xc3c62efb, 0xb4157a19, 0x84ce8b13, 0x85326279, 0x2ee71e9d, 0x318721e4},
-		input:  "f48b5ae62f9968baa9ba0754276cd8e9dcfa8a88e4571856d483ee857b1e7bc98b4732e81f1b4421a3bf05ab9020d56c573474b2a2ac4a2daf0a7e0c3a692a097e746d12507ba6c47bec1d91d4c7cfc8993c6700c65a0e5f11b1ccd07a04eac41f59b15b085c1e2a38b7d3be9eb7d08984782753ae23acdafbd01ae0065ab9c6d2a2d157c1fc9c49c2444f2e5f9b0f0bbfb055cc04e29b2658b85d414b448a5b62d32af9a1e115d3d396387d4bb97ba656a9202f868b32353cc05f15ae46cbe983d47b78ba73d2578a94d149e2c64a48d0c1a04fc68baf34c24b641ea0b7a800",
-		output: "b9af1016275eaff9905356292944168c3fe5fdffd9e4494eb33d539b34546680936c664420769204e91ead32c2bb33a8b4868b563174d1a46108b9dfe6d9ac6cc1e975f9662c8473b14950cbc9bc2c08de19d5d0653bb460bea37b4c20a9ab118a9550bfeb1b4892a3ff774e8efe3656adcdf48239f96e844d242525ee9f9559f6a469e920dcb3eaa283a0f31f5dfac3c4fac7befa586ac31bd17f8406f5c4379ba8c3e03a6992a1915afa526d5ed8cc7d5a2605423ece9f4a44f0c41d6dc35a5d2085916ca8cabd85ac257421eb78d73451f69aaedeb4ec57840231436654ce",
-	},
-	{
-		length: 227,
-		nonce:  [3]uint32{0x5d6d997c, 0x9d623987, 0x5742de36},
-		key:    [8]uint32{0x57b2a5ea, 0xc5bdd68b, 0x99c7b0c6, 0x26aea960, 0xba5c75f1, 0xa904cf6b, 0x685031de, 0xa0f0e99},
-		input:  "b39101601efa2ecdf41878b0fd920a3005ce709e4ec2970abb76e32c232ea21069f81b246eda75aace7555ce8ae203455d3723e684bd671389300e353eec0d2f499d10654fafda2e7a69bfca7198eb172249167ca8864b5d5f58d28723090ec86e251a1bac0346d52fd81f06e0c05429e0b2b895588290b7d00878a4da3378eb6c7e61487de2b318fedf68fa7ad7c88ee746827c1f60d98c7716f3f9695c5ffd4670f71a0fa78a1fb554ba482c5de83feaed7c65fc71acc9f541342eb8f7622b12bb2cfa222fa2ddd8b3ed210ce442275afa3132c8a0e17dd504ecbc92525c118952be",
-		output: "50eb5b21c179a03b9a822f0075906a3ce4acc32486139f92635c7d834f69071d5a6dc0e15ed06a5cee37147071d59641d140a82ad5815b954e7f28e080c3dbbeaf13943d7b7c66d49d51ba1132eeadd4cb7a7e7d726d08d95f1578d55519f267f753f3e16ff39504a87b2286d8bfba0fe6bc28887b466bf276453a82cdd0abbbbf08db0e1c26c317d50ad9b8dc09cd621bc566d362024e8404739df6468869d2125c58b25d70e392f5e75924c4341be81c263915bb514ad436fb24c2c67450e84f6d1b72d1a02a3310c07a7814d930264fdbbf5ddca7067e18e8a44faa87169b7f2e35",
-	},
-	{
-		length: 233,
-		nonce:  [3]uint32{0x75bca707, 0x89f6d1f4, 0x2a6f657a},
-		key:    [8]uint32{0x949f42cc, 0x2b5d3c48, 0xfe0be473, 0x17ac92aa, 0xbdc9d9dd, 0x74f9df26, 0x26487508, 0x7c7b41a2},
-		input:  "0a42f63b975ad0e12a1e32615813dfd6f79e53ce011e2a2f0534dd054689f8df73a8326fecfd517ff7fe530d78081af66c3a8c7c189eb9d9efed1e5577b5512d42ef1fe273f670ce380c64bc62e217a7e410a8ed89998344e29301e4e053a3a3cf7e71587fd056a6bd976f16e157476a06997dfaaff32172dd84190570621f2221420c0a0ea607ea756e9792c8c0e7157c95b89c9490e20b750ee85e4c27c9b8f409e848ec90afcad33342010bb9808358afbcb3d9b094127c38c243a204e76899677079758e7cbada9a5c18363449eebc07bab516a16372722403a046df85c7dd2ffc804c54d38aab",
-		output: "87a47bcaa1c1eb8e55151011c4f39af4b9e108a55a7124cdcf66d0dee727306e6971f783b038bd6b215f530cdbb53e17975742ec304fdb3792a88b674504396978c6a5e4a9c87a7c3ca430d61165c1a3f6162eeaf38c93e18b6ccb6a595ad428cdc98efef8f84463eed757a72ffd827b71c0579fcc1f4baa11812be2bc5a2a95df8e41d04b33343df09ce628c367d1f88488f7a2787f013c8e76f0b9257cee777ec4adc6df8c5790e41ea02da85142b777a0d4e7c7157a48118046935f8888b5352d1750bf00b92843027a349cf5685e8a2a2efde16dcf5e1c1ed8c779bb38cabfb42ec4dd87d58273",
-	},
-	{
-		length: 234,
-		nonce:  [3]uint32{0x5003a4f7, 0x40bd8cde, 0xfe35fb25},
-		key:    [8]uint32{0x576e49d9, 0xe84e9df, 0x9f227a3, 0x437c9de0, 0xc46ac8de, 0x1a6a2d2b, 0x42ab7684, 0x4253fbb6},
-		input:  "abeff48fa082dfe78cac33636c421991b0d94c3bc9e5bd6d22763601a55201fa47b09ce60cb959ba107020213c28ae31d54923d1e74ab1d9ddc2762b2d23d8c6961d81068230884a39682fa4b30676ffec19319362c075df0b879a0f083a67b23597bf95c4bb997fae4736479cb8a9c00520ba2f6e5962d54c313c576180d17779ff239ad60f1f1373627770d50a1c49718b2b2e536846299e052f8c1a5d3079e91cb1b8eac4661daac32d73b3b99e2051f8f694a61d1e9d3935f802921a4d979b6ade453cf30d73a4a498a6a2c5395c60fcf271d50b4967ac12b0d7bf818c2679d552e9b3b963f9f789",
-		output: "a0d11e732984ad575570ed51031b8ac2d7b4c536f7e85f6fce9ef5d2b946cefe2ee009227d6747c7d133ba69609f4a1e2253d0eb59d1f930611e0c26a7c0cf2d2ce7ccea6e079eadf2eb1acf0463d90fb4b3269faae3febfc88cb9fb0873d8b74894506199394c8e44a96e6b479bd3e045749cce1c3f57243abdb37e67084eb573cd820c6cee424227019592a027e9da8f7b8997bfb292627a986f83c8fb8d156a91a12a8b52659cf9272924631745ed3a2453a4c2d87a167faa9104e799c715ed597bcb66949ab15dae29a86ba147507e8d8af66e96c09c53caa053ad3b79d9ed3c0c6c00169eaec3a3",
-	},
-	{
-		length: 237,
-		nonce:  [3]uint32{0xc6ae48ce, 0x26f0906f, 0xfd8ab8bf},
-		key:    [8]uint32{0x42b82c50, 0x7f519e0d, 0xcbb95098, 0x6f75e532, 0xe2c9f61b, 0x5a4af942, 0x2679777b, 0x6a8e1c9c},
-		input:  "a77b7a5870335b9145fd2e08ec898ba2f158fda16e8a2661a7a416857b6ba6937b4843ecaa79d3635d28383af80290842de9ca0bb621ee22b7fd6bf379922741e812b1739c33dd6923d0607826fc84d46bbdbd1fe9d1255f56a167779a560a6eed1b9c9579b8f771147df467e67a070d9e9ce8ad92dc0543d1c28216c1dec82614ac5e853ed49b6abac7eb3426ef0c749febce2ca4e589d06ccfc8f9f622ede388282d69ceb2fd5122ba024b7a194da9dffc7acb481eabfcd127e9b854be1da727483452a83d1ca14238a496db89958afd7140dd057773ea9a1eee412875b552d464ba0fab31239c752d7dd3d9",
-		output: "b330c33a511d9809436ab0c4b84253eeda63b095d5e8dc74803de5f070444a0256d21d6c1cf82054a231b43648c3547aa37919b32cfd9893e265b55545be6d7cd11d3f238ef66c3c278fcccb7dd0dc59f57750562cb28da05d86ee30265ff6a3991a466ba7e6208c56fc8862e19ac332e5fb3cbcc84e83a6205dee61a71acd363a3c9de96d54070a69860c152d4ceb9c4b4cc3b878547b6116699885654b11f888dc3c23483a4b24fbe27c52545c06dd80ab7223d4578ab89bff5f9cbf5d55b19611a5251031df5da5060a1f198226c638ab5e8ec5db459e9cd8210f64b2521a2329d79228cc484c5065ef8a1d",
-	},
-	{
-		length: 244,
-		nonce:  [3]uint32{0xea38678b, 0xc41eada, 0x3381147b},
-		key:    [8]uint32{0x268fc2ac, 0x21297e86, 0xdf9ef8cf, 0xd4b45234, 0x2a95c4f2, 0xcec36ce3, 0xd5fa38c9, 0x7dc43790},
-		input:  "322d634bc180458123e10d0509870b54e0f0a3a72a2bd9e9cf44324c7a1ca37dd6adf9db1fcc8dadabd881f91d47d93b58382802b42ee936802fac8612ea4dd9eca5f215935ea9ba6233b9c8bddba3385861de669d95c888c8977851cb305db577a4eb2360f362fa459d61ffc8fcaa1502905b073bd8e9567ac7cff8e5fb1002c55641a3af5fc47ac0131fae372f073e19721ffcce9821e0241d7fa67bfc499c8f100e050d39bd4d7cae4557d208629603ec4a007852762ec1905d0e81b873510fd334dedcd9c288eb8415db505913af06bea94d197ab627d58f6a9944f6c56247595fc54ae3f8604aa37c3466f74561131e11dc",
-		output: "edbfb1090987762f75eba2439d746cdbefe8605b8ebad59e075d28b54edfe48813ccae891f6ed655c5ab5211ba896fff0c8e09bd1554aad987dc53f355d0822e9b0f524a99a79c68a9f3b4e30506cd725b07be135e4540078be88dac64fc545c433837b96a924452f6b844291c4c3fb5f8cc94f06d9f19dad7fc945f093020e82ed19f9eb3ddff68b813629991d1a460e5455e1cb41cf23bb3d96fdb6b96581c3bf9ef72814406329bbbba5b835e7724c728cebe88efcd996dea71d0fd5c53e081c21ce8b3764738d693e390fbf8e0137a716760fc9cd2014cd9bf3fd706bc3464d1f15803606976e96b1077cda0a62921ff7c32",
-	},
-	{
-		length: 250,
-		nonce:  [3]uint32{0x883ac584, 0x8fb8e7d5, 0xdf07de66},
-		key:    [8]uint32{0xc7747e47, 0x853d88c6, 0xbf9aa631, 0x78f16480, 0x7c248080, 0x15ff973b, 0x31528a40, 0x629686e5},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 256,
-		nonce:  [3]uint32{0x79cd7a62, 0xae619be, 0x7d96d236},
-		key:    [8]uint32{0x7dec8e64, 0x9f12b14, 0x6c70df2a, 0xeae0aa0d, 0x27b1ac14, 0x7a00d833, 0xe63c0aca, 0x189438e2},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 268,
-		nonce:  [3]uint32{0xb7581e00, 0x9a1bba92, 0x64356674},
-		key:    [8]uint32{0xdc2c9fcd, 0x5e50de1a, 0x8546466b, 0xc1b49b21, 0x36a670cd, 0x2887f367, 0x2fbf4300, 0xf90a0374},
-		input:  "0d8d864010ce8df1c0179cf0236dce1c100f9c115eaa5294c24a2e1afa27f9d57ebc18f00482be0218d44262bd4db73002ff53c6388f5e333470aced2a42a73b376686c8d02e05ece27cdd8b1e3f675c715981f8b656d68d0e16227b529cf881d2433e4371fbcd933eaa72346e77e688ac80ee95324512c66a4c16338cf38c941b72c21c3d01e005a07c0eb436014fb1ee61806de7e96842ca3217ab8c7607d609dd2f637f9fda8a85cb0549f262c9e4a955c384319a6ad2b696e2593d7d174f5ddb98e2a8d5d12558c18ab67571e9a0202e91ce26d720cbe41a3a6a4f309296ca4d9d9a59a9043dd2e5a707ed7d5034023d5ea06ab14b39b7852e5c984848d5670c6f2f0b189c2a8a4a4bca",
-		output: "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",
-	},
-	{
-		length: 305,
-		nonce:  [3]uint32{0x2c641fcb, 0x5170c7e2, 0x62a23688},
-		key:    [8]uint32{0x5aed5915, 0xc5c4cc18, 0xf0e51574, 0x75d894c6, 0x1b7082d1, 0x5d2ea1db, 0x709fd24, 0xf5f69898},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 430,
-		nonce:  [3]uint32{0x99b172cc, 0x91056d0, 0x48057533},
-		key:    [8]uint32{0xe6cf398e, 0xc3c56066, 0xc5ff194c, 0xf6d2d8c4, 0x6d1d8908, 0x63e62065, 0xcca485cb, 0x1eb03dd6},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 449,
-		nonce:  [3]uint32{0x2adb4a6d, 0x33d00c1c, 0x10a0193c},
-		key:    [8]uint32{0x8bd707df, 0x70212019, 0xdb685581, 0x9cdbd1a3, 0x7db9ff1a, 0x1af119ee, 0xb1d8c0ff, 0x3c4a22cb},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 487,
-		nonce:  [3]uint32{0xecf15215, 0x45e31add, 0x56499d31},
-		key:    [8]uint32{0xf5988496, 0x49bcc2df, 0x7b4ba3c3, 0x5d5138be, 0xd6cb466b, 0xe98c82f8, 0x147d3f27, 0xc82389f0},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 511,
-		nonce:  [3]uint32{0xba68c47, 0xbc020097, 0xbf7d14a7},
-		key:    [8]uint32{0x3bbeedde, 0x6e8f4d6c, 0x6e27cd72, 0x140ff360, 0xc891efa0, 0x4aaa227f, 0x733cfef2, 0x2b51f1f3},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 607,
-		nonce:  [3]uint32{0x9419df54, 0x4593f2a, 0x71c06dd6},
-		key:    [8]uint32{0x7b517740, 0x41e86353, 0xed629408, 0x5fe32cea, 0xb06bc5df, 0xaec9b350, 0xc00c2a6f, 0xb3aaf44f},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 682,
-		nonce:  [3]uint32{0x17cebe90, 0xeffe259b, 0xbdf9d4ca},
-		key:    [8]uint32{0x172d51e8, 0x5b80f5c6, 0xb9c9e438, 0xa56119c0, 0x62212323, 0xf5386589, 0xde7079a3, 0x669e643},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 768,
-		nonce:  [3]uint32{0xb1c9bd09, 0xdbe6497d, 0x16c73b95},
-		key:    [8]uint32{0xbf9d9e5, 0x2eede668, 0x631dca95, 0x4233e36d, 0xd83fe644, 0x99b11f89, 0xef055717, 0x1ae9695f},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 828,
-		nonce:  [3]uint32{0xc7e503e, 0xf8110ddf, 0x83316c8c},
-		key:    [8]uint32{0xfa2d1cd, 0x4fe7f905, 0x2b9e4c1b, 0x115bc881, 0x2922bcc5, 0x3f60aa25, 0x13c26d31, 0x2096af63},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 859,
-		nonce:  [3]uint32{0xeb02dac9, 0xa7cba06c, 0xc24764c},
-		key:    [8]uint32{0xe9414a57, 0xd5e29546, 0x1a5e2f4c, 0x806e4c46, 0x48098d1f, 0x4351ca1a, 0x53ed97c, 0xa6a495ca},
-		input:  "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",
-		output: "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",
-	},
-	{
-		length: 985,
-		nonce:  [3]uint32{0x3c2b47a4, 0xf614c813, 0xa26f7014},
-		key:    [8]uint32{0x39bd3d18, 0xc9aacd67, 0xcb5485b5, 0x20536a22, 0xbb22ac87, 0x1c9da580, 0x7d996b2e, 0x456fe461},
-		input:  "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",
-		output: "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",
-	},
-}
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/xor.go b/vendor/golang.org/x/crypto/internal/chacha20/xor.go
deleted file mode 100644
index 9c5ba0b..0000000
--- a/vendor/golang.org/x/crypto/internal/chacha20/xor.go
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found src the LICENSE file.
-
-package chacha20
-
-import (
-	"runtime"
-)
-
-// Platforms that have fast unaligned 32-bit little endian accesses.
-const unaligned = runtime.GOARCH == "386" ||
-	runtime.GOARCH == "amd64" ||
-	runtime.GOARCH == "arm64" ||
-	runtime.GOARCH == "ppc64le" ||
-	runtime.GOARCH == "s390x"
-
-// xor reads a little endian uint32 from src, XORs it with u and
-// places the result in little endian byte order in dst.
-func xor(dst, src []byte, u uint32) {
-	_, _ = src[3], dst[3] // eliminate bounds checks
-	if unaligned {
-		// The compiler should optimize this code into
-		// 32-bit unaligned little endian loads and stores.
-		// TODO: delete once the compiler does a reliably
-		// good job with the generic code below.
-		// See issue #25111 for more details.
-		v := uint32(src[0])
-		v |= uint32(src[1]) << 8
-		v |= uint32(src[2]) << 16
-		v |= uint32(src[3]) << 24
-		v ^= u
-		dst[0] = byte(v)
-		dst[1] = byte(v >> 8)
-		dst[2] = byte(v >> 16)
-		dst[3] = byte(v >> 24)
-	} else {
-		dst[0] = src[0] ^ byte(u)
-		dst[1] = src[1] ^ byte(u>>8)
-		dst[2] = src[2] ^ byte(u>>16)
-		dst[3] = src[3] ^ byte(u>>24)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing.go
deleted file mode 100644
index f38797b..0000000
--- a/vendor/golang.org/x/crypto/internal/subtle/aliasing.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !appengine
-
-// Package subtle implements functions that are often useful in cryptographic
-// code but require careful thought to use correctly.
-package subtle // import "golang.org/x/crypto/internal/subtle"
-
-import "unsafe"
-
-// AnyOverlap reports whether x and y share memory at any (not necessarily
-// corresponding) index. The memory beyond the slice length is ignored.
-func AnyOverlap(x, y []byte) bool {
-	return len(x) > 0 && len(y) > 0 &&
-		uintptr(unsafe.Pointer(&x[0])) <= uintptr(unsafe.Pointer(&y[len(y)-1])) &&
-		uintptr(unsafe.Pointer(&y[0])) <= uintptr(unsafe.Pointer(&x[len(x)-1]))
-}
-
-// InexactOverlap reports whether x and y share memory at any non-corresponding
-// index. The memory beyond the slice length is ignored. Note that x and y can
-// have different lengths and still not have any inexact overlap.
-//
-// InexactOverlap can be used to implement the requirements of the crypto/cipher
-// AEAD, Block, BlockMode and Stream interfaces.
-func InexactOverlap(x, y []byte) bool {
-	if len(x) == 0 || len(y) == 0 || &x[0] == &y[0] {
-		return false
-	}
-	return AnyOverlap(x, y)
-}
diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing_appengine.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing_appengine.go
deleted file mode 100644
index 0cc4a8a..0000000
--- a/vendor/golang.org/x/crypto/internal/subtle/aliasing_appengine.go
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build appengine
-
-// Package subtle implements functions that are often useful in cryptographic
-// code but require careful thought to use correctly.
-package subtle // import "golang.org/x/crypto/internal/subtle"
-
-// This is the Google App Engine standard variant based on reflect
-// because the unsafe package and cgo are disallowed.
-
-import "reflect"
-
-// AnyOverlap reports whether x and y share memory at any (not necessarily
-// corresponding) index. The memory beyond the slice length is ignored.
-func AnyOverlap(x, y []byte) bool {
-	return len(x) > 0 && len(y) > 0 &&
-		reflect.ValueOf(&x[0]).Pointer() <= reflect.ValueOf(&y[len(y)-1]).Pointer() &&
-		reflect.ValueOf(&y[0]).Pointer() <= reflect.ValueOf(&x[len(x)-1]).Pointer()
-}
-
-// InexactOverlap reports whether x and y share memory at any non-corresponding
-// index. The memory beyond the slice length is ignored. Note that x and y can
-// have different lengths and still not have any inexact overlap.
-//
-// InexactOverlap can be used to implement the requirements of the crypto/cipher
-// AEAD, Block, BlockMode and Stream interfaces.
-func InexactOverlap(x, y []byte) bool {
-	if len(x) == 0 || len(y) == 0 || &x[0] == &y[0] {
-		return false
-	}
-	return AnyOverlap(x, y)
-}
diff --git a/vendor/golang.org/x/crypto/internal/subtle/aliasing_test.go b/vendor/golang.org/x/crypto/internal/subtle/aliasing_test.go
deleted file mode 100644
index a5b62ff..0000000
--- a/vendor/golang.org/x/crypto/internal/subtle/aliasing_test.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package subtle_test
-
-import (
-	"testing"
-
-	"golang.org/x/crypto/internal/subtle"
-)
-
-var a, b [100]byte
-
-var aliasingTests = []struct {
-	x, y                       []byte
-	anyOverlap, inexactOverlap bool
-}{
-	{a[:], b[:], false, false},
-	{a[:], b[:0], false, false},
-	{a[:], b[:50], false, false},
-	{a[40:50], a[50:60], false, false},
-	{a[40:50], a[60:70], false, false},
-	{a[:51], a[50:], true, true},
-	{a[:], a[:], true, false},
-	{a[:50], a[:60], true, false},
-	{a[:], nil, false, false},
-	{nil, nil, false, false},
-	{a[:], a[:0], false, false},
-	{a[:10], a[:10:20], true, false},
-	{a[:10], a[5:10:20], true, true},
-}
-
-func testAliasing(t *testing.T, i int, x, y []byte, anyOverlap, inexactOverlap bool) {
-	any := subtle.AnyOverlap(x, y)
-	if any != anyOverlap {
-		t.Errorf("%d: wrong AnyOverlap result, expected %v, got %v", i, anyOverlap, any)
-	}
-	inexact := subtle.InexactOverlap(x, y)
-	if inexact != inexactOverlap {
-		t.Errorf("%d: wrong InexactOverlap result, expected %v, got %v", i, inexactOverlap, any)
-	}
-}
-
-func TestAliasing(t *testing.T) {
-	for i, tt := range aliasingTests {
-		testAliasing(t, i, tt.x, tt.y, tt.anyOverlap, tt.inexactOverlap)
-		testAliasing(t, i, tt.y, tt.x, tt.anyOverlap, tt.inexactOverlap)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/md4/example_test.go b/vendor/golang.org/x/crypto/md4/example_test.go
deleted file mode 100644
index db3f59b..0000000
--- a/vendor/golang.org/x/crypto/md4/example_test.go
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package md4_test
-
-import (
-	"fmt"
-	"io"
-
-	"golang.org/x/crypto/md4"
-)
-
-func ExampleNew() {
-	h := md4.New()
-	data := "These pretzels are making me thirsty."
-	io.WriteString(h, data)
-	fmt.Printf("%x", h.Sum(nil))
-	// Output: 48c4e365090b30a32f084c4888deceaa
-}
diff --git a/vendor/golang.org/x/crypto/md4/md4.go b/vendor/golang.org/x/crypto/md4/md4.go
deleted file mode 100644
index 6d9ba9e..0000000
--- a/vendor/golang.org/x/crypto/md4/md4.go
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package md4 implements the MD4 hash algorithm as defined in RFC 1320.
-package md4 // import "golang.org/x/crypto/md4"
-
-import (
-	"crypto"
-	"hash"
-)
-
-func init() {
-	crypto.RegisterHash(crypto.MD4, New)
-}
-
-// The size of an MD4 checksum in bytes.
-const Size = 16
-
-// The blocksize of MD4 in bytes.
-const BlockSize = 64
-
-const (
-	_Chunk = 64
-	_Init0 = 0x67452301
-	_Init1 = 0xEFCDAB89
-	_Init2 = 0x98BADCFE
-	_Init3 = 0x10325476
-)
-
-// digest represents the partial evaluation of a checksum.
-type digest struct {
-	s   [4]uint32
-	x   [_Chunk]byte
-	nx  int
-	len uint64
-}
-
-func (d *digest) Reset() {
-	d.s[0] = _Init0
-	d.s[1] = _Init1
-	d.s[2] = _Init2
-	d.s[3] = _Init3
-	d.nx = 0
-	d.len = 0
-}
-
-// New returns a new hash.Hash computing the MD4 checksum.
-func New() hash.Hash {
-	d := new(digest)
-	d.Reset()
-	return d
-}
-
-func (d *digest) Size() int { return Size }
-
-func (d *digest) BlockSize() int { return BlockSize }
-
-func (d *digest) Write(p []byte) (nn int, err error) {
-	nn = len(p)
-	d.len += uint64(nn)
-	if d.nx > 0 {
-		n := len(p)
-		if n > _Chunk-d.nx {
-			n = _Chunk - d.nx
-		}
-		for i := 0; i < n; i++ {
-			d.x[d.nx+i] = p[i]
-		}
-		d.nx += n
-		if d.nx == _Chunk {
-			_Block(d, d.x[0:])
-			d.nx = 0
-		}
-		p = p[n:]
-	}
-	n := _Block(d, p)
-	p = p[n:]
-	if len(p) > 0 {
-		d.nx = copy(d.x[:], p)
-	}
-	return
-}
-
-func (d0 *digest) Sum(in []byte) []byte {
-	// Make a copy of d0, so that caller can keep writing and summing.
-	d := new(digest)
-	*d = *d0
-
-	// Padding.  Add a 1 bit and 0 bits until 56 bytes mod 64.
-	len := d.len
-	var tmp [64]byte
-	tmp[0] = 0x80
-	if len%64 < 56 {
-		d.Write(tmp[0 : 56-len%64])
-	} else {
-		d.Write(tmp[0 : 64+56-len%64])
-	}
-
-	// Length in bits.
-	len <<= 3
-	for i := uint(0); i < 8; i++ {
-		tmp[i] = byte(len >> (8 * i))
-	}
-	d.Write(tmp[0:8])
-
-	if d.nx != 0 {
-		panic("d.nx != 0")
-	}
-
-	for _, s := range d.s {
-		in = append(in, byte(s>>0))
-		in = append(in, byte(s>>8))
-		in = append(in, byte(s>>16))
-		in = append(in, byte(s>>24))
-	}
-	return in
-}
diff --git a/vendor/golang.org/x/crypto/md4/md4_test.go b/vendor/golang.org/x/crypto/md4/md4_test.go
deleted file mode 100644
index b56edd7..0000000
--- a/vendor/golang.org/x/crypto/md4/md4_test.go
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package md4
-
-import (
-	"fmt"
-	"io"
-	"testing"
-)
-
-type md4Test struct {
-	out string
-	in  string
-}
-
-var golden = []md4Test{
-	{"31d6cfe0d16ae931b73c59d7e0c089c0", ""},
-	{"bde52cb31de33e46245e05fbdbd6fb24", "a"},
-	{"ec388dd78999dfc7cf4632465693b6bf", "ab"},
-	{"a448017aaf21d8525fc10ae87aa6729d", "abc"},
-	{"41decd8f579255c5200f86a4bb3ba740", "abcd"},
-	{"9803f4a34e8eb14f96adba49064a0c41", "abcde"},
-	{"804e7f1c2586e50b49ac65db5b645131", "abcdef"},
-	{"752f4adfe53d1da0241b5bc216d098fc", "abcdefg"},
-	{"ad9daf8d49d81988590a6f0e745d15dd", "abcdefgh"},
-	{"1e4e28b05464316b56402b3815ed2dfd", "abcdefghi"},
-	{"dc959c6f5d6f9e04e4380777cc964b3d", "abcdefghij"},
-	{"1b5701e265778898ef7de5623bbe7cc0", "Discard medicine more than two years old."},
-	{"d7f087e090fe7ad4a01cb59dacc9a572", "He who has a shady past knows that nice guys finish last."},
-	{"a6f8fd6df617c72837592fc3570595c9", "I wouldn't marry him with a ten foot pole."},
-	{"c92a84a9526da8abc240c05d6b1a1ce0", "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave"},
-	{"f6013160c4dcb00847069fee3bb09803", "The days of the digital watch are numbered.  -Tom Stoppard"},
-	{"2c3bb64f50b9107ed57640fe94bec09f", "Nepal premier won't resign."},
-	{"45b7d8a32c7806f2f7f897332774d6e4", "For every action there is an equal and opposite government program."},
-	{"b5b4f9026b175c62d7654bdc3a1cd438", "His money is twice tainted: 'taint yours and 'taint mine."},
-	{"caf44e80f2c20ce19b5ba1cab766e7bd", "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977"},
-	{"191fae6707f496aa54a6bce9f2ecf74d", "It's a tiny change to the code and not completely disgusting. - Bob Manchek"},
-	{"9ddc753e7a4ccee6081cd1b45b23a834", "size:  a.out:  bad magic"},
-	{"8d050f55b1cadb9323474564be08a521", "The major problem is with sendmail.  -Mark Horton"},
-	{"ad6e2587f74c3e3cc19146f6127fa2e3", "Give me a rock, paper and scissors and I will move the world.  CCFestoon"},
-	{"1d616d60a5fabe85589c3f1566ca7fca", "If the enemy is within range, then so are you."},
-	{"aec3326a4f496a2ced65a1963f84577f", "It's well we cannot hear the screams/That we create in others' dreams."},
-	{"77b4fd762d6b9245e61c50bf6ebf118b", "You remind me of a TV show, but that's all right: I watch it anyway."},
-	{"e8f48c726bae5e516f6ddb1a4fe62438", "C is as portable as Stonehedge!!"},
-	{"a3a84366e7219e887423b01f9be7166e", "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley"},
-	{"a6b7aa35157e984ef5d9b7f32e5fbb52", "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction.  Lewis-Randall Rule"},
-	{"75661f0545955f8f9abeeb17845f3fd6", "How can you write a big system without C++?  -Paul Glick"},
-}
-
-func TestGolden(t *testing.T) {
-	for i := 0; i < len(golden); i++ {
-		g := golden[i]
-		c := New()
-		for j := 0; j < 3; j++ {
-			if j < 2 {
-				io.WriteString(c, g.in)
-			} else {
-				io.WriteString(c, g.in[0:len(g.in)/2])
-				c.Sum(nil)
-				io.WriteString(c, g.in[len(g.in)/2:])
-			}
-			s := fmt.Sprintf("%x", c.Sum(nil))
-			if s != g.out {
-				t.Fatalf("md4[%d](%s) = %s want %s", j, g.in, s, g.out)
-			}
-			c.Reset()
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/md4/md4block.go b/vendor/golang.org/x/crypto/md4/md4block.go
deleted file mode 100644
index 3fed475..0000000
--- a/vendor/golang.org/x/crypto/md4/md4block.go
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// MD4 block step.
-// In its own file so that a faster assembly or C version
-// can be substituted easily.
-
-package md4
-
-var shift1 = []uint{3, 7, 11, 19}
-var shift2 = []uint{3, 5, 9, 13}
-var shift3 = []uint{3, 9, 11, 15}
-
-var xIndex2 = []uint{0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15}
-var xIndex3 = []uint{0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15}
-
-func _Block(dig *digest, p []byte) int {
-	a := dig.s[0]
-	b := dig.s[1]
-	c := dig.s[2]
-	d := dig.s[3]
-	n := 0
-	var X [16]uint32
-	for len(p) >= _Chunk {
-		aa, bb, cc, dd := a, b, c, d
-
-		j := 0
-		for i := 0; i < 16; i++ {
-			X[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24
-			j += 4
-		}
-
-		// If this needs to be made faster in the future,
-		// the usual trick is to unroll each of these
-		// loops by a factor of 4; that lets you replace
-		// the shift[] lookups with constants and,
-		// with suitable variable renaming in each
-		// unrolled body, delete the a, b, c, d = d, a, b, c
-		// (or you can let the optimizer do the renaming).
-		//
-		// The index variables are uint so that % by a power
-		// of two can be optimized easily by a compiler.
-
-		// Round 1.
-		for i := uint(0); i < 16; i++ {
-			x := i
-			s := shift1[i%4]
-			f := ((c ^ d) & b) ^ d
-			a += f + X[x]
-			a = a<<s | a>>(32-s)
-			a, b, c, d = d, a, b, c
-		}
-
-		// Round 2.
-		for i := uint(0); i < 16; i++ {
-			x := xIndex2[i]
-			s := shift2[i%4]
-			g := (b & c) | (b & d) | (c & d)
-			a += g + X[x] + 0x5a827999
-			a = a<<s | a>>(32-s)
-			a, b, c, d = d, a, b, c
-		}
-
-		// Round 3.
-		for i := uint(0); i < 16; i++ {
-			x := xIndex3[i]
-			s := shift3[i%4]
-			h := b ^ c ^ d
-			a += h + X[x] + 0x6ed9eba1
-			a = a<<s | a>>(32-s)
-			a, b, c, d = d, a, b, c
-		}
-
-		a += aa
-		b += bb
-		c += cc
-		d += dd
-
-		p = p[_Chunk:]
-		n += _Chunk
-	}
-
-	dig.s[0] = a
-	dig.s[1] = b
-	dig.s[2] = c
-	dig.s[3] = d
-	return n
-}
diff --git a/vendor/golang.org/x/crypto/nacl/auth/auth.go b/vendor/golang.org/x/crypto/nacl/auth/auth.go
deleted file mode 100644
index ec1d6eb..0000000
--- a/vendor/golang.org/x/crypto/nacl/auth/auth.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package auth authenticates a message using a secret key.
-
-The Sum function, viewed as a function of the message for a uniform random
-key, is designed to meet the standard notion of unforgeability. This means
-that an attacker cannot find authenticators for any messages not authenticated
-by the sender, even if the attacker has adaptively influenced the messages
-authenticated by the sender. For a formal definition see, e.g., Section 2.4
-of Bellare, Kilian, and Rogaway, "The security of the cipher block chaining
-message authentication code," Journal of Computer and System Sciences 61 (2000),
-362–399; http://www-cse.ucsd.edu/~mihir/papers/cbc.html.
-
-auth does not make any promises regarding "strong" unforgeability; perhaps
-one valid authenticator can be converted into another valid authenticator for
-the same message. NaCl also does not make any promises regarding "truncated
-unforgeability."
-
-This package is interoperable with NaCl: https://nacl.cr.yp.to/auth.html.
-*/
-package auth
-
-import (
-	"crypto/hmac"
-	"crypto/sha512"
-)
-
-const (
-	// Size is the size, in bytes, of an authenticated digest.
-	Size = 32
-	// KeySize is the size, in bytes, of an authentication key.
-	KeySize = 32
-)
-
-// Sum generates an authenticator for m using a secret key and returns the
-// 32-byte digest.
-func Sum(m []byte, key *[KeySize]byte) *[Size]byte {
-	mac := hmac.New(sha512.New, key[:])
-	mac.Write(m)
-	out := new([KeySize]byte)
-	copy(out[:], mac.Sum(nil)[:Size])
-	return out
-}
-
-// Verify checks that digest is a valid authenticator of message m under the
-// given secret key. Verify does not leak timing information.
-func Verify(digest []byte, m []byte, key *[KeySize]byte) bool {
-	if len(digest) != Size {
-		return false
-	}
-	mac := hmac.New(sha512.New, key[:])
-	mac.Write(m)
-	expectedMAC := mac.Sum(nil) // first 256 bits of 512-bit sum
-	return hmac.Equal(digest, expectedMAC[:Size])
-}
diff --git a/vendor/golang.org/x/crypto/nacl/auth/auth_test.go b/vendor/golang.org/x/crypto/nacl/auth/auth_test.go
deleted file mode 100644
index 92074b5..0000000
--- a/vendor/golang.org/x/crypto/nacl/auth/auth_test.go
+++ /dev/null
@@ -1,172 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package auth
-
-import (
-	"bytes"
-	rand "crypto/rand"
-	mrand "math/rand"
-	"testing"
-)
-
-// Test cases are from RFC 4231, and match those present in the tests directory
-// of the download here: https://nacl.cr.yp.to/install.html
-var testCases = []struct {
-	key [32]byte
-	msg []byte
-	out [32]byte
-}{
-	{
-		key: [32]byte{
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
-			0x0b, 0x0b, 0x0b, 0x0b,
-		},
-		msg: []byte("Hi There"),
-		out: [32]byte{
-			0x87, 0xaa, 0x7c, 0xde, 0xa5, 0xef, 0x61, 0x9d,
-			0x4f, 0xf0, 0xb4, 0x24, 0x1a, 0x1d, 0x6c, 0xb0,
-			0x23, 0x79, 0xf4, 0xe2, 0xce, 0x4e, 0xc2, 0x78,
-			0x7a, 0xd0, 0xb3, 0x05, 0x45, 0xe1, 0x7c, 0xde,
-		},
-	},
-	{
-		key: [32]byte{'J', 'e', 'f', 'e'},
-		msg: []byte("what do ya want for nothing?"),
-		out: [32]byte{
-			0x16, 0x4b, 0x7a, 0x7b, 0xfc, 0xf8, 0x19, 0xe2,
-			0xe3, 0x95, 0xfb, 0xe7, 0x3b, 0x56, 0xe0, 0xa3,
-			0x87, 0xbd, 0x64, 0x22, 0x2e, 0x83, 0x1f, 0xd6,
-			0x10, 0x27, 0x0c, 0xd7, 0xea, 0x25, 0x05, 0x54,
-		},
-	},
-	{
-		key: [32]byte{
-			0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
-			0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
-			0xaa, 0xaa, 0xaa, 0xaa,
-		},
-		msg: []byte{ // 50 bytes of 0xdd
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
-			0xdd, 0xdd,
-		},
-		out: [32]byte{
-			0xfa, 0x73, 0xb0, 0x08, 0x9d, 0x56, 0xa2, 0x84,
-			0xef, 0xb0, 0xf0, 0x75, 0x6c, 0x89, 0x0b, 0xe9,
-			0xb1, 0xb5, 0xdb, 0xdd, 0x8e, 0xe8, 0x1a, 0x36,
-			0x55, 0xf8, 0x3e, 0x33, 0xb2, 0x27, 0x9d, 0x39,
-		},
-	},
-	{
-		key: [32]byte{
-			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
-			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
-			0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
-			0x19,
-		},
-		msg: []byte{
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
-			0xcd, 0xcd,
-		},
-		out: [32]byte{
-			0xb0, 0xba, 0x46, 0x56, 0x37, 0x45, 0x8c, 0x69,
-			0x90, 0xe5, 0xa8, 0xc5, 0xf6, 0x1d, 0x4a, 0xf7,
-			0xe5, 0x76, 0xd9, 0x7f, 0xf9, 0x4b, 0x87, 0x2d,
-			0xe7, 0x6f, 0x80, 0x50, 0x36, 0x1e, 0xe3, 0xdb,
-		},
-	},
-}
-
-func TestSum(t *testing.T) {
-	for i, test := range testCases {
-		tag := Sum(test.msg, &test.key)
-		if !bytes.Equal(tag[:], test.out[:]) {
-			t.Errorf("#%d: Sum: got\n%x\nwant\n%x", i, tag, test.out)
-		}
-	}
-}
-
-func TestVerify(t *testing.T) {
-	wrongMsg := []byte("unknown msg")
-
-	for i, test := range testCases {
-		if !Verify(test.out[:], test.msg, &test.key) {
-			t.Errorf("#%d: Verify(%x, %q, %x) failed", i, test.out, test.msg, test.key)
-		}
-		if Verify(test.out[:], wrongMsg, &test.key) {
-			t.Errorf("#%d: Verify(%x, %q, %x) unexpectedly passed", i, test.out, wrongMsg, test.key)
-		}
-	}
-}
-
-func TestStress(t *testing.T) {
-	if testing.Short() {
-		t.Skip("exhaustiveness test")
-	}
-
-	var key [32]byte
-	msg := make([]byte, 10000)
-	prng := mrand.New(mrand.NewSource(0))
-
-	// copied from tests/auth5.c in nacl
-	for i := 0; i < 10000; i++ {
-		if _, err := rand.Read(key[:]); err != nil {
-			t.Fatal(err)
-		}
-		if _, err := rand.Read(msg[:i]); err != nil {
-			t.Fatal(err)
-		}
-		tag := Sum(msg[:i], &key)
-		if !Verify(tag[:], msg[:i], &key) {
-			t.Errorf("#%d: unexpected failure from Verify", i)
-		}
-		if i > 0 {
-			msgIndex := prng.Intn(i)
-			oldMsgByte := msg[msgIndex]
-			msg[msgIndex] += byte(1 + prng.Intn(255))
-			if Verify(tag[:], msg[:i], &key) {
-				t.Errorf("#%d: unexpected success from Verify after corrupting message", i)
-			}
-			msg[msgIndex] = oldMsgByte
-
-			tag[prng.Intn(len(tag))] += byte(1 + prng.Intn(255))
-			if Verify(tag[:], msg[:i], &key) {
-				t.Errorf("#%d: unexpected success from Verify after corrupting authenticator", i)
-			}
-		}
-	}
-}
-
-func BenchmarkAuth(b *testing.B) {
-	var key [32]byte
-	if _, err := rand.Read(key[:]); err != nil {
-		b.Fatal(err)
-	}
-	buf := make([]byte, 1024)
-	if _, err := rand.Read(buf[:]); err != nil {
-		b.Fatal(err)
-	}
-
-	b.SetBytes(int64(len(buf)))
-	b.ReportAllocs()
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		tag := Sum(buf, &key)
-		if Verify(tag[:], buf, &key) == false {
-			b.Fatal("unexpected failure from Verify")
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/nacl/auth/example_test.go b/vendor/golang.org/x/crypto/nacl/auth/example_test.go
deleted file mode 100644
index 02a2cd6..0000000
--- a/vendor/golang.org/x/crypto/nacl/auth/example_test.go
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package auth_test
-
-import (
-	"encoding/hex"
-	"fmt"
-
-	"golang.org/x/crypto/nacl/auth"
-)
-
-func Example() {
-	// Load your secret key from a safe place and reuse it across multiple
-	// Sum calls. (Obviously don't use this example key for anything
-	// real.) If you want to convert a passphrase to a key, use a suitable
-	// package like bcrypt or scrypt.
-	secretKeyBytes, err := hex.DecodeString("6368616e676520746869732070617373776f726420746f206120736563726574")
-	if err != nil {
-		panic(err)
-	}
-
-	var secretKey [32]byte
-	copy(secretKey[:], secretKeyBytes)
-
-	mac := auth.Sum([]byte("hello world"), &secretKey)
-	fmt.Printf("%x\n", *mac)
-	result := auth.Verify(mac[:], []byte("hello world"), &secretKey)
-	fmt.Println(result)
-	badResult := auth.Verify(mac[:], []byte("different message"), &secretKey)
-	fmt.Println(badResult)
-	// Output: eca5a521f3d77b63f567fb0cb6f5f2d200641bc8dada42f60c5f881260c30317
-	// true
-	// false
-}
diff --git a/vendor/golang.org/x/crypto/nacl/box/box.go b/vendor/golang.org/x/crypto/nacl/box/box.go
deleted file mode 100644
index 31b697b..0000000
--- a/vendor/golang.org/x/crypto/nacl/box/box.go
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package box authenticates and encrypts small messages using public-key cryptography.
-
-Box uses Curve25519, XSalsa20 and Poly1305 to encrypt and authenticate
-messages. The length of messages is not hidden.
-
-It is the caller's responsibility to ensure the uniqueness of nonces—for
-example, by using nonce 1 for the first message, nonce 2 for the second
-message, etc. Nonces are long enough that randomly generated nonces have
-negligible risk of collision.
-
-Messages should be small because:
-
-1. The whole message needs to be held in memory to be processed.
-
-2. Using large messages pressures implementations on small machines to decrypt
-and process plaintext before authenticating it. This is very dangerous, and
-this API does not allow it, but a protocol that uses excessive message sizes
-might present some implementations with no other choice.
-
-3. Fixed overheads will be sufficiently amortised by messages as small as 8KB.
-
-4. Performance may be improved by working with messages that fit into data caches.
-
-Thus large amounts of data should be chunked so that each message is small.
-(Each message still needs a unique nonce.) If in doubt, 16KB is a reasonable
-chunk size.
-
-This package is interoperable with NaCl: https://nacl.cr.yp.to/box.html.
-*/
-package box // import "golang.org/x/crypto/nacl/box"
-
-import (
-	"io"
-
-	"golang.org/x/crypto/curve25519"
-	"golang.org/x/crypto/nacl/secretbox"
-	"golang.org/x/crypto/salsa20/salsa"
-)
-
-// Overhead is the number of bytes of overhead when boxing a message.
-const Overhead = secretbox.Overhead
-
-// GenerateKey generates a new public/private key pair suitable for use with
-// Seal and Open.
-func GenerateKey(rand io.Reader) (publicKey, privateKey *[32]byte, err error) {
-	publicKey = new([32]byte)
-	privateKey = new([32]byte)
-	_, err = io.ReadFull(rand, privateKey[:])
-	if err != nil {
-		publicKey = nil
-		privateKey = nil
-		return
-	}
-
-	curve25519.ScalarBaseMult(publicKey, privateKey)
-	return
-}
-
-var zeros [16]byte
-
-// Precompute calculates the shared key between peersPublicKey and privateKey
-// and writes it to sharedKey. The shared key can be used with
-// OpenAfterPrecomputation and SealAfterPrecomputation to speed up processing
-// when using the same pair of keys repeatedly.
-func Precompute(sharedKey, peersPublicKey, privateKey *[32]byte) {
-	curve25519.ScalarMult(sharedKey, privateKey, peersPublicKey)
-	salsa.HSalsa20(sharedKey, &zeros, sharedKey, &salsa.Sigma)
-}
-
-// Seal appends an encrypted and authenticated copy of message to out, which
-// will be Overhead bytes longer than the original and must not overlap it. The
-// nonce must be unique for each distinct message for a given pair of keys.
-func Seal(out, message []byte, nonce *[24]byte, peersPublicKey, privateKey *[32]byte) []byte {
-	var sharedKey [32]byte
-	Precompute(&sharedKey, peersPublicKey, privateKey)
-	return secretbox.Seal(out, message, nonce, &sharedKey)
-}
-
-// SealAfterPrecomputation performs the same actions as Seal, but takes a
-// shared key as generated by Precompute.
-func SealAfterPrecomputation(out, message []byte, nonce *[24]byte, sharedKey *[32]byte) []byte {
-	return secretbox.Seal(out, message, nonce, sharedKey)
-}
-
-// Open authenticates and decrypts a box produced by Seal and appends the
-// message to out, which must not overlap box. The output will be Overhead
-// bytes smaller than box.
-func Open(out, box []byte, nonce *[24]byte, peersPublicKey, privateKey *[32]byte) ([]byte, bool) {
-	var sharedKey [32]byte
-	Precompute(&sharedKey, peersPublicKey, privateKey)
-	return secretbox.Open(out, box, nonce, &sharedKey)
-}
-
-// OpenAfterPrecomputation performs the same actions as Open, but takes a
-// shared key as generated by Precompute.
-func OpenAfterPrecomputation(out, box []byte, nonce *[24]byte, sharedKey *[32]byte) ([]byte, bool) {
-	return secretbox.Open(out, box, nonce, sharedKey)
-}
diff --git a/vendor/golang.org/x/crypto/nacl/box/box_test.go b/vendor/golang.org/x/crypto/nacl/box/box_test.go
deleted file mode 100644
index 481ade2..0000000
--- a/vendor/golang.org/x/crypto/nacl/box/box_test.go
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package box
-
-import (
-	"bytes"
-	"crypto/rand"
-	"encoding/hex"
-	"testing"
-
-	"golang.org/x/crypto/curve25519"
-)
-
-func TestSealOpen(t *testing.T) {
-	publicKey1, privateKey1, _ := GenerateKey(rand.Reader)
-	publicKey2, privateKey2, _ := GenerateKey(rand.Reader)
-
-	if *privateKey1 == *privateKey2 {
-		t.Fatalf("private keys are equal!")
-	}
-	if *publicKey1 == *publicKey2 {
-		t.Fatalf("public keys are equal!")
-	}
-	message := []byte("test message")
-	var nonce [24]byte
-
-	box := Seal(nil, message, &nonce, publicKey1, privateKey2)
-	opened, ok := Open(nil, box, &nonce, publicKey2, privateKey1)
-	if !ok {
-		t.Fatalf("failed to open box")
-	}
-
-	if !bytes.Equal(opened, message) {
-		t.Fatalf("got %x, want %x", opened, message)
-	}
-
-	for i := range box {
-		box[i] ^= 0x40
-		_, ok := Open(nil, box, &nonce, publicKey2, privateKey1)
-		if ok {
-			t.Fatalf("opened box with byte %d corrupted", i)
-		}
-		box[i] ^= 0x40
-	}
-}
-
-func TestBox(t *testing.T) {
-	var privateKey1, privateKey2 [32]byte
-	for i := range privateKey1[:] {
-		privateKey1[i] = 1
-	}
-	for i := range privateKey2[:] {
-		privateKey2[i] = 2
-	}
-
-	var publicKey1 [32]byte
-	curve25519.ScalarBaseMult(&publicKey1, &privateKey1)
-	var message [64]byte
-	for i := range message[:] {
-		message[i] = 3
-	}
-
-	var nonce [24]byte
-	for i := range nonce[:] {
-		nonce[i] = 4
-	}
-
-	box := Seal(nil, message[:], &nonce, &publicKey1, &privateKey2)
-
-	// expected was generated using the C implementation of NaCl.
-	expected, _ := hex.DecodeString("78ea30b19d2341ebbdba54180f821eec265cf86312549bea8a37652a8bb94f07b78a73ed1708085e6ddd0e943bbdeb8755079a37eb31d86163ce241164a47629c0539f330b4914cd135b3855bc2a2dfc")
-
-	if !bytes.Equal(box, expected) {
-		t.Fatalf("box didn't match, got\n%x\n, expected\n%x", box, expected)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/nacl/box/example_test.go b/vendor/golang.org/x/crypto/nacl/box/example_test.go
deleted file mode 100644
index 25e42d2..0000000
--- a/vendor/golang.org/x/crypto/nacl/box/example_test.go
+++ /dev/null
@@ -1,95 +0,0 @@
-package box_test
-
-import (
-	crypto_rand "crypto/rand" // Custom so it's clear which rand we're using.
-	"fmt"
-	"io"
-
-	"golang.org/x/crypto/nacl/box"
-)
-
-func Example() {
-	senderPublicKey, senderPrivateKey, err := box.GenerateKey(crypto_rand.Reader)
-	if err != nil {
-		panic(err)
-	}
-
-	recipientPublicKey, recipientPrivateKey, err := box.GenerateKey(crypto_rand.Reader)
-	if err != nil {
-		panic(err)
-	}
-
-	// You must use a different nonce for each message you encrypt with the
-	// same key. Since the nonce here is 192 bits long, a random value
-	// provides a sufficiently small probability of repeats.
-	var nonce [24]byte
-	if _, err := io.ReadFull(crypto_rand.Reader, nonce[:]); err != nil {
-		panic(err)
-	}
-
-	msg := []byte("Alas, poor Yorick! I knew him, Horatio")
-	// This encrypts msg and appends the result to the nonce.
-	encrypted := box.Seal(nonce[:], msg, &nonce, recipientPublicKey, senderPrivateKey)
-
-	// The recipient can decrypt the message using their private key and the
-	// sender's public key. When you decrypt, you must use the same nonce you
-	// used to encrypt the message. One way to achieve this is to store the
-	// nonce alongside the encrypted message. Above, we stored the nonce in the
-	// first 24 bytes of the encrypted text.
-	var decryptNonce [24]byte
-	copy(decryptNonce[:], encrypted[:24])
-	decrypted, ok := box.Open(nil, encrypted[24:], &decryptNonce, senderPublicKey, recipientPrivateKey)
-	if !ok {
-		panic("decryption error")
-	}
-	fmt.Println(string(decrypted))
-	// Output: Alas, poor Yorick! I knew him, Horatio
-}
-
-func Example_precompute() {
-	senderPublicKey, senderPrivateKey, err := box.GenerateKey(crypto_rand.Reader)
-	if err != nil {
-		panic(err)
-	}
-
-	recipientPublicKey, recipientPrivateKey, err := box.GenerateKey(crypto_rand.Reader)
-	if err != nil {
-		panic(err)
-	}
-
-	// The shared key can be used to speed up processing when using the same
-	// pair of keys repeatedly.
-	sharedEncryptKey := new([32]byte)
-	box.Precompute(sharedEncryptKey, recipientPublicKey, senderPrivateKey)
-
-	// You must use a different nonce for each message you encrypt with the
-	// same key. Since the nonce here is 192 bits long, a random value
-	// provides a sufficiently small probability of repeats.
-	var nonce [24]byte
-	if _, err := io.ReadFull(crypto_rand.Reader, nonce[:]); err != nil {
-		panic(err)
-	}
-
-	msg := []byte("A fellow of infinite jest, of most excellent fancy")
-	// This encrypts msg and appends the result to the nonce.
-	encrypted := box.SealAfterPrecomputation(nonce[:], msg, &nonce, sharedEncryptKey)
-
-	// The shared key can be used to speed up processing when using the same
-	// pair of keys repeatedly.
-	var sharedDecryptKey [32]byte
-	box.Precompute(&sharedDecryptKey, senderPublicKey, recipientPrivateKey)
-
-	// The recipient can decrypt the message using the shared key. When you
-	// decrypt, you must use the same nonce you used to encrypt the message.
-	// One way to achieve this is to store the nonce alongside the encrypted
-	// message. Above, we stored the nonce in the first 24 bytes of the
-	// encrypted text.
-	var decryptNonce [24]byte
-	copy(decryptNonce[:], encrypted[:24])
-	decrypted, ok := box.OpenAfterPrecomputation(nil, encrypted[24:], &decryptNonce, &sharedDecryptKey)
-	if !ok {
-		panic("decryption error")
-	}
-	fmt.Println(string(decrypted))
-	// Output: A fellow of infinite jest, of most excellent fancy
-}
diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go b/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go
deleted file mode 100644
index 789f4ff..0000000
--- a/vendor/golang.org/x/crypto/nacl/secretbox/example_test.go
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package secretbox_test
-
-import (
-	"crypto/rand"
-	"encoding/hex"
-	"fmt"
-	"io"
-
-	"golang.org/x/crypto/nacl/secretbox"
-)
-
-func Example() {
-	// Load your secret key from a safe place and reuse it across multiple
-	// Seal calls. (Obviously don't use this example key for anything
-	// real.) If you want to convert a passphrase to a key, use a suitable
-	// package like bcrypt or scrypt.
-	secretKeyBytes, err := hex.DecodeString("6368616e676520746869732070617373776f726420746f206120736563726574")
-	if err != nil {
-		panic(err)
-	}
-
-	var secretKey [32]byte
-	copy(secretKey[:], secretKeyBytes)
-
-	// You must use a different nonce for each message you encrypt with the
-	// same key. Since the nonce here is 192 bits long, a random value
-	// provides a sufficiently small probability of repeats.
-	var nonce [24]byte
-	if _, err := io.ReadFull(rand.Reader, nonce[:]); err != nil {
-		panic(err)
-	}
-
-	// This encrypts "hello world" and appends the result to the nonce.
-	encrypted := secretbox.Seal(nonce[:], []byte("hello world"), &nonce, &secretKey)
-
-	// When you decrypt, you must use the same nonce and key you used to
-	// encrypt the message. One way to achieve this is to store the nonce
-	// alongside the encrypted message. Above, we stored the nonce in the first
-	// 24 bytes of the encrypted text.
-	var decryptNonce [24]byte
-	copy(decryptNonce[:], encrypted[:24])
-	decrypted, ok := secretbox.Open(nil, encrypted[24:], &decryptNonce, &secretKey)
-	if !ok {
-		panic("decryption error")
-	}
-
-	fmt.Println(string(decrypted))
-	// Output: hello world
-}
diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go b/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go
deleted file mode 100644
index a98d1bd..0000000
--- a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox.go
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package secretbox encrypts and authenticates small messages.
-
-Secretbox uses XSalsa20 and Poly1305 to encrypt and authenticate messages with
-secret-key cryptography. The length of messages is not hidden.
-
-It is the caller's responsibility to ensure the uniqueness of nonces—for
-example, by using nonce 1 for the first message, nonce 2 for the second
-message, etc. Nonces are long enough that randomly generated nonces have
-negligible risk of collision.
-
-Messages should be small because:
-
-1. The whole message needs to be held in memory to be processed.
-
-2. Using large messages pressures implementations on small machines to decrypt
-and process plaintext before authenticating it. This is very dangerous, and
-this API does not allow it, but a protocol that uses excessive message sizes
-might present some implementations with no other choice.
-
-3. Fixed overheads will be sufficiently amortised by messages as small as 8KB.
-
-4. Performance may be improved by working with messages that fit into data caches.
-
-Thus large amounts of data should be chunked so that each message is small.
-(Each message still needs a unique nonce.) If in doubt, 16KB is a reasonable
-chunk size.
-
-This package is interoperable with NaCl: https://nacl.cr.yp.to/secretbox.html.
-*/
-package secretbox // import "golang.org/x/crypto/nacl/secretbox"
-
-import (
-	"golang.org/x/crypto/internal/subtle"
-	"golang.org/x/crypto/poly1305"
-	"golang.org/x/crypto/salsa20/salsa"
-)
-
-// Overhead is the number of bytes of overhead when boxing a message.
-const Overhead = poly1305.TagSize
-
-// setup produces a sub-key and Salsa20 counter given a nonce and key.
-func setup(subKey *[32]byte, counter *[16]byte, nonce *[24]byte, key *[32]byte) {
-	// We use XSalsa20 for encryption so first we need to generate a
-	// key and nonce with HSalsa20.
-	var hNonce [16]byte
-	copy(hNonce[:], nonce[:])
-	salsa.HSalsa20(subKey, &hNonce, key, &salsa.Sigma)
-
-	// The final 8 bytes of the original nonce form the new nonce.
-	copy(counter[:], nonce[16:])
-}
-
-// sliceForAppend takes a slice and a requested number of bytes. It returns a
-// slice with the contents of the given slice followed by that many bytes and a
-// second slice that aliases into it and contains only the extra bytes. If the
-// original slice has sufficient capacity then no allocation is performed.
-func sliceForAppend(in []byte, n int) (head, tail []byte) {
-	if total := len(in) + n; cap(in) >= total {
-		head = in[:total]
-	} else {
-		head = make([]byte, total)
-		copy(head, in)
-	}
-	tail = head[len(in):]
-	return
-}
-
-// Seal appends an encrypted and authenticated copy of message to out, which
-// must not overlap message. The key and nonce pair must be unique for each
-// distinct message and the output will be Overhead bytes longer than message.
-func Seal(out, message []byte, nonce *[24]byte, key *[32]byte) []byte {
-	var subKey [32]byte
-	var counter [16]byte
-	setup(&subKey, &counter, nonce, key)
-
-	// The Poly1305 key is generated by encrypting 32 bytes of zeros. Since
-	// Salsa20 works with 64-byte blocks, we also generate 32 bytes of
-	// keystream as a side effect.
-	var firstBlock [64]byte
-	salsa.XORKeyStream(firstBlock[:], firstBlock[:], &counter, &subKey)
-
-	var poly1305Key [32]byte
-	copy(poly1305Key[:], firstBlock[:])
-
-	ret, out := sliceForAppend(out, len(message)+poly1305.TagSize)
-	if subtle.AnyOverlap(out, message) {
-		panic("nacl: invalid buffer overlap")
-	}
-
-	// We XOR up to 32 bytes of message with the keystream generated from
-	// the first block.
-	firstMessageBlock := message
-	if len(firstMessageBlock) > 32 {
-		firstMessageBlock = firstMessageBlock[:32]
-	}
-
-	tagOut := out
-	out = out[poly1305.TagSize:]
-	for i, x := range firstMessageBlock {
-		out[i] = firstBlock[32+i] ^ x
-	}
-	message = message[len(firstMessageBlock):]
-	ciphertext := out
-	out = out[len(firstMessageBlock):]
-
-	// Now encrypt the rest.
-	counter[8] = 1
-	salsa.XORKeyStream(out, message, &counter, &subKey)
-
-	var tag [poly1305.TagSize]byte
-	poly1305.Sum(&tag, ciphertext, &poly1305Key)
-	copy(tagOut, tag[:])
-
-	return ret
-}
-
-// Open authenticates and decrypts a box produced by Seal and appends the
-// message to out, which must not overlap box. The output will be Overhead
-// bytes smaller than box.
-func Open(out, box []byte, nonce *[24]byte, key *[32]byte) ([]byte, bool) {
-	if len(box) < Overhead {
-		return nil, false
-	}
-
-	var subKey [32]byte
-	var counter [16]byte
-	setup(&subKey, &counter, nonce, key)
-
-	// The Poly1305 key is generated by encrypting 32 bytes of zeros. Since
-	// Salsa20 works with 64-byte blocks, we also generate 32 bytes of
-	// keystream as a side effect.
-	var firstBlock [64]byte
-	salsa.XORKeyStream(firstBlock[:], firstBlock[:], &counter, &subKey)
-
-	var poly1305Key [32]byte
-	copy(poly1305Key[:], firstBlock[:])
-	var tag [poly1305.TagSize]byte
-	copy(tag[:], box)
-
-	if !poly1305.Verify(&tag, box[poly1305.TagSize:], &poly1305Key) {
-		return nil, false
-	}
-
-	ret, out := sliceForAppend(out, len(box)-Overhead)
-	if subtle.AnyOverlap(out, box) {
-		panic("nacl: invalid buffer overlap")
-	}
-
-	// We XOR up to 32 bytes of box with the keystream generated from
-	// the first block.
-	box = box[Overhead:]
-	firstMessageBlock := box
-	if len(firstMessageBlock) > 32 {
-		firstMessageBlock = firstMessageBlock[:32]
-	}
-	for i, x := range firstMessageBlock {
-		out[i] = firstBlock[32+i] ^ x
-	}
-
-	box = box[len(firstMessageBlock):]
-	out = out[len(firstMessageBlock):]
-
-	// Now decrypt the rest.
-	counter[8] = 1
-	salsa.XORKeyStream(out, box, &counter, &subKey)
-
-	return ret, true
-}
diff --git a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox_test.go b/vendor/golang.org/x/crypto/nacl/secretbox/secretbox_test.go
deleted file mode 100644
index 3c70b0f..0000000
--- a/vendor/golang.org/x/crypto/nacl/secretbox/secretbox_test.go
+++ /dev/null
@@ -1,154 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package secretbox
-
-import (
-	"bytes"
-	"crypto/rand"
-	"encoding/hex"
-	"testing"
-)
-
-func TestSealOpen(t *testing.T) {
-	var key [32]byte
-	var nonce [24]byte
-
-	rand.Reader.Read(key[:])
-	rand.Reader.Read(nonce[:])
-
-	var box, opened []byte
-
-	for msgLen := 0; msgLen < 128; msgLen += 17 {
-		message := make([]byte, msgLen)
-		rand.Reader.Read(message)
-
-		box = Seal(box[:0], message, &nonce, &key)
-		var ok bool
-		opened, ok = Open(opened[:0], box, &nonce, &key)
-		if !ok {
-			t.Errorf("%d: failed to open box", msgLen)
-			continue
-		}
-
-		if !bytes.Equal(opened, message) {
-			t.Errorf("%d: got %x, expected %x", msgLen, opened, message)
-			continue
-		}
-	}
-
-	for i := range box {
-		box[i] ^= 0x20
-		_, ok := Open(opened[:0], box, &nonce, &key)
-		if ok {
-			t.Errorf("box was opened after corrupting byte %d", i)
-		}
-		box[i] ^= 0x20
-	}
-}
-
-func TestSecretBox(t *testing.T) {
-	var key [32]byte
-	var nonce [24]byte
-	var message [64]byte
-
-	for i := range key[:] {
-		key[i] = 1
-	}
-	for i := range nonce[:] {
-		nonce[i] = 2
-	}
-	for i := range message[:] {
-		message[i] = 3
-	}
-
-	box := Seal(nil, message[:], &nonce, &key)
-	// expected was generated using the C implementation of NaCl.
-	expected, _ := hex.DecodeString("8442bc313f4626f1359e3b50122b6ce6fe66ddfe7d39d14e637eb4fd5b45beadab55198df6ab5368439792a23c87db70acb6156dc5ef957ac04f6276cf6093b84be77ff0849cc33e34b7254d5a8f65ad")
-
-	if !bytes.Equal(box, expected) {
-		t.Fatalf("box didn't match, got\n%x\n, expected\n%x", box, expected)
-	}
-}
-
-func TestAppend(t *testing.T) {
-	var key [32]byte
-	var nonce [24]byte
-	var message [8]byte
-
-	out := make([]byte, 4)
-	box := Seal(out, message[:], &nonce, &key)
-	if !bytes.Equal(box[:4], out[:4]) {
-		t.Fatalf("Seal didn't correctly append")
-	}
-
-	out = make([]byte, 4, 100)
-	box = Seal(out, message[:], &nonce, &key)
-	if !bytes.Equal(box[:4], out[:4]) {
-		t.Fatalf("Seal didn't correctly append with sufficient capacity.")
-	}
-}
-
-func benchmarkSealSize(b *testing.B, size int) {
-	message := make([]byte, size)
-	out := make([]byte, size+Overhead)
-	var nonce [24]byte
-	var key [32]byte
-
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		out = Seal(out[:0], message, &nonce, &key)
-	}
-}
-
-func BenchmarkSeal8Bytes(b *testing.B) {
-	benchmarkSealSize(b, 8)
-}
-
-func BenchmarkSeal100Bytes(b *testing.B) {
-	benchmarkSealSize(b, 100)
-}
-
-func BenchmarkSeal1K(b *testing.B) {
-	benchmarkSealSize(b, 1024)
-}
-
-func BenchmarkSeal8K(b *testing.B) {
-	benchmarkSealSize(b, 8192)
-}
-
-func benchmarkOpenSize(b *testing.B, size int) {
-	msg := make([]byte, size)
-	result := make([]byte, size)
-	var nonce [24]byte
-	var key [32]byte
-	box := Seal(nil, msg, &nonce, &key)
-
-	b.SetBytes(int64(size))
-	b.ResetTimer()
-
-	for i := 0; i < b.N; i++ {
-		if _, ok := Open(result[:0], box, &nonce, &key); !ok {
-			panic("Open failed")
-		}
-	}
-}
-
-func BenchmarkOpen8Bytes(b *testing.B) {
-	benchmarkOpenSize(b, 8)
-}
-
-func BenchmarkOpen100Bytes(b *testing.B) {
-	benchmarkOpenSize(b, 100)
-}
-
-func BenchmarkOpen1K(b *testing.B) {
-	benchmarkOpenSize(b, 1024)
-}
-
-func BenchmarkOpen8K(b *testing.B) {
-	benchmarkOpenSize(b, 8192)
-}
diff --git a/vendor/golang.org/x/crypto/nacl/sign/sign.go b/vendor/golang.org/x/crypto/nacl/sign/sign.go
deleted file mode 100644
index d076270..0000000
--- a/vendor/golang.org/x/crypto/nacl/sign/sign.go
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package sign signs small messages using public-key cryptography.
-//
-// Sign uses Ed25519 to sign messages. The length of messages is not hidden.
-// Messages should be small because:
-// 1. The whole message needs to be held in memory to be processed.
-// 2. Using large messages pressures implementations on small machines to process
-// plaintext without verifying the signature. This is very dangerous, and this API
-// discourages it, but a protocol that uses excessive message sizes might present
-// some implementations with no other choice.
-// 3. Performance may be improved by working with messages that fit into data caches.
-// Thus large amounts of data should be chunked so that each message is small.
-//
-// This package is not interoperable with the current release of NaCl
-// (https://nacl.cr.yp.to/sign.html), which does not support Ed25519 yet. However,
-// it is compatible with the NaCl fork libsodium (https://www.libsodium.org), as well
-// as TweetNaCl (https://tweetnacl.cr.yp.to/).
-package sign
-
-import (
-	"io"
-
-	"golang.org/x/crypto/ed25519"
-	"golang.org/x/crypto/internal/subtle"
-)
-
-// Overhead is the number of bytes of overhead when signing a message.
-const Overhead = 64
-
-// GenerateKey generates a new public/private key pair suitable for use with
-// Sign and Open.
-func GenerateKey(rand io.Reader) (publicKey *[32]byte, privateKey *[64]byte, err error) {
-	pub, priv, err := ed25519.GenerateKey(rand)
-	if err != nil {
-		return nil, nil, err
-	}
-	publicKey, privateKey = new([32]byte), new([64]byte)
-	copy((*publicKey)[:], pub)
-	copy((*privateKey)[:], priv)
-	return publicKey, privateKey, nil
-}
-
-// Sign appends a signed copy of message to out, which will be Overhead bytes
-// longer than the original and must not overlap it.
-func Sign(out, message []byte, privateKey *[64]byte) []byte {
-	sig := ed25519.Sign(ed25519.PrivateKey((*privateKey)[:]), message)
-	ret, out := sliceForAppend(out, Overhead+len(message))
-	if subtle.AnyOverlap(out, message) {
-		panic("nacl: invalid buffer overlap")
-	}
-	copy(out, sig)
-	copy(out[Overhead:], message)
-	return ret
-}
-
-// Open verifies a signed message produced by Sign and appends the message to
-// out, which must not overlap the signed message. The output will be Overhead
-// bytes smaller than the signed message.
-func Open(out, signedMessage []byte, publicKey *[32]byte) ([]byte, bool) {
-	if len(signedMessage) < Overhead {
-		return nil, false
-	}
-	if !ed25519.Verify(ed25519.PublicKey((*publicKey)[:]), signedMessage[Overhead:], signedMessage[:Overhead]) {
-		return nil, false
-	}
-	ret, out := sliceForAppend(out, len(signedMessage)-Overhead)
-	if subtle.AnyOverlap(out, signedMessage) {
-		panic("nacl: invalid buffer overlap")
-	}
-	copy(out, signedMessage[Overhead:])
-	return ret, true
-}
-
-// sliceForAppend takes a slice and a requested number of bytes. It returns a
-// slice with the contents of the given slice followed by that many bytes and a
-// second slice that aliases into it and contains only the extra bytes. If the
-// original slice has sufficient capacity then no allocation is performed.
-func sliceForAppend(in []byte, n int) (head, tail []byte) {
-	if total := len(in) + n; cap(in) >= total {
-		head = in[:total]
-	} else {
-		head = make([]byte, total)
-		copy(head, in)
-	}
-	tail = head[len(in):]
-	return
-}
diff --git a/vendor/golang.org/x/crypto/nacl/sign/sign_test.go b/vendor/golang.org/x/crypto/nacl/sign/sign_test.go
deleted file mode 100644
index 0a6439a..0000000
--- a/vendor/golang.org/x/crypto/nacl/sign/sign_test.go
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sign
-
-import (
-	"bytes"
-	"crypto/rand"
-	"encoding/hex"
-	"testing"
-)
-
-var testSignedMessage, _ = hex.DecodeString("26a0a47f733d02ddb74589b6cbd6f64a7dab1947db79395a1a9e00e4c902c0f185b119897b89b248d16bab4ea781b5a3798d25c2984aec833dddab57e0891e0d68656c6c6f20776f726c64")
-var testMessage = testSignedMessage[Overhead:]
-var testPublicKey [32]byte
-var testPrivateKey = [64]byte{
-	0x98, 0x3c, 0x6a, 0xa6, 0x21, 0xcc, 0xbb, 0xb2, 0xa7, 0xe8, 0x97, 0x94, 0xde, 0x5f, 0xf8, 0x11,
-	0x8a, 0xf3, 0x33, 0x1a, 0x03, 0x5c, 0x43, 0x99, 0x03, 0x13, 0x2d, 0xd7, 0xb4, 0xc4, 0x8b, 0xb0,
-	0xf6, 0x33, 0x20, 0xa3, 0x34, 0x8b, 0x7b, 0xe2, 0xfe, 0xb4, 0xe7, 0x3a, 0x54, 0x08, 0x2d, 0xd7,
-	0x0c, 0xb7, 0xc0, 0xe3, 0xbf, 0x62, 0x6c, 0x55, 0xf0, 0x33, 0x28, 0x52, 0xf8, 0x48, 0x7d, 0xfd,
-}
-
-func init() {
-	copy(testPublicKey[:], testPrivateKey[32:])
-}
-
-func TestSign(t *testing.T) {
-	signedMessage := Sign(nil, testMessage, &testPrivateKey)
-	if !bytes.Equal(signedMessage, testSignedMessage) {
-		t.Fatalf("signed message did not match, got\n%x\n, expected\n%x", signedMessage, testSignedMessage)
-	}
-}
-
-func TestOpen(t *testing.T) {
-	message, ok := Open(nil, testSignedMessage, &testPublicKey)
-	if !ok {
-		t.Fatalf("valid signed message not successfully verified")
-	}
-	if !bytes.Equal(message, testMessage) {
-		t.Fatalf("message did not match, got\n%x\n, expected\n%x", message, testMessage)
-	}
-	message, ok = Open(nil, testSignedMessage[1:], &testPublicKey)
-	if ok {
-		t.Fatalf("invalid signed message successfully verified")
-	}
-
-	badMessage := make([]byte, len(testSignedMessage))
-	copy(badMessage, testSignedMessage)
-	badMessage[5] ^= 1
-	if _, ok := Open(nil, badMessage, &testPublicKey); ok {
-		t.Fatalf("Open succeeded with a corrupt message")
-	}
-
-	var badPublicKey [32]byte
-	copy(badPublicKey[:], testPublicKey[:])
-	badPublicKey[5] ^= 1
-	if _, ok := Open(nil, testSignedMessage, &badPublicKey); ok {
-		t.Fatalf("Open succeeded with a corrupt public key")
-	}
-}
-
-func TestGenerateSignOpen(t *testing.T) {
-	publicKey, privateKey, _ := GenerateKey(rand.Reader)
-	signedMessage := Sign(nil, testMessage, privateKey)
-	message, ok := Open(nil, signedMessage, publicKey)
-	if !ok {
-		t.Fatalf("failed to verify signed message")
-	}
-
-	if !bytes.Equal(message, testMessage) {
-		t.Fatalf("verified message does not match signed messge, got\n%x\n, expected\n%x", message, testMessage)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ocsp/ocsp.go b/vendor/golang.org/x/crypto/ocsp/ocsp.go
deleted file mode 100644
index 5edc9c9..0000000
--- a/vendor/golang.org/x/crypto/ocsp/ocsp.go
+++ /dev/null
@@ -1,781 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ocsp parses OCSP responses as specified in RFC 2560. OCSP responses
-// are signed messages attesting to the validity of a certificate for a small
-// period of time. This is used to manage revocation for X.509 certificates.
-package ocsp // import "golang.org/x/crypto/ocsp"
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	_ "crypto/sha1"
-	_ "crypto/sha256"
-	_ "crypto/sha512"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"errors"
-	"fmt"
-	"math/big"
-	"strconv"
-	"time"
-)
-
-var idPKIXOCSPBasic = asn1.ObjectIdentifier([]int{1, 3, 6, 1, 5, 5, 7, 48, 1, 1})
-
-// ResponseStatus contains the result of an OCSP request. See
-// https://tools.ietf.org/html/rfc6960#section-2.3
-type ResponseStatus int
-
-const (
-	Success       ResponseStatus = 0
-	Malformed     ResponseStatus = 1
-	InternalError ResponseStatus = 2
-	TryLater      ResponseStatus = 3
-	// Status code four is unused in OCSP. See
-	// https://tools.ietf.org/html/rfc6960#section-4.2.1
-	SignatureRequired ResponseStatus = 5
-	Unauthorized      ResponseStatus = 6
-)
-
-func (r ResponseStatus) String() string {
-	switch r {
-	case Success:
-		return "success"
-	case Malformed:
-		return "malformed"
-	case InternalError:
-		return "internal error"
-	case TryLater:
-		return "try later"
-	case SignatureRequired:
-		return "signature required"
-	case Unauthorized:
-		return "unauthorized"
-	default:
-		return "unknown OCSP status: " + strconv.Itoa(int(r))
-	}
-}
-
-// ResponseError is an error that may be returned by ParseResponse to indicate
-// that the response itself is an error, not just that its indicating that a
-// certificate is revoked, unknown, etc.
-type ResponseError struct {
-	Status ResponseStatus
-}
-
-func (r ResponseError) Error() string {
-	return "ocsp: error from server: " + r.Status.String()
-}
-
-// These are internal structures that reflect the ASN.1 structure of an OCSP
-// response. See RFC 2560, section 4.2.
-
-type certID struct {
-	HashAlgorithm pkix.AlgorithmIdentifier
-	NameHash      []byte
-	IssuerKeyHash []byte
-	SerialNumber  *big.Int
-}
-
-// https://tools.ietf.org/html/rfc2560#section-4.1.1
-type ocspRequest struct {
-	TBSRequest tbsRequest
-}
-
-type tbsRequest struct {
-	Version       int              `asn1:"explicit,tag:0,default:0,optional"`
-	RequestorName pkix.RDNSequence `asn1:"explicit,tag:1,optional"`
-	RequestList   []request
-}
-
-type request struct {
-	Cert certID
-}
-
-type responseASN1 struct {
-	Status   asn1.Enumerated
-	Response responseBytes `asn1:"explicit,tag:0,optional"`
-}
-
-type responseBytes struct {
-	ResponseType asn1.ObjectIdentifier
-	Response     []byte
-}
-
-type basicResponse struct {
-	TBSResponseData    responseData
-	SignatureAlgorithm pkix.AlgorithmIdentifier
-	Signature          asn1.BitString
-	Certificates       []asn1.RawValue `asn1:"explicit,tag:0,optional"`
-}
-
-type responseData struct {
-	Raw            asn1.RawContent
-	Version        int `asn1:"optional,default:0,explicit,tag:0"`
-	RawResponderID asn1.RawValue
-	ProducedAt     time.Time `asn1:"generalized"`
-	Responses      []singleResponse
-}
-
-type singleResponse struct {
-	CertID           certID
-	Good             asn1.Flag        `asn1:"tag:0,optional"`
-	Revoked          revokedInfo      `asn1:"tag:1,optional"`
-	Unknown          asn1.Flag        `asn1:"tag:2,optional"`
-	ThisUpdate       time.Time        `asn1:"generalized"`
-	NextUpdate       time.Time        `asn1:"generalized,explicit,tag:0,optional"`
-	SingleExtensions []pkix.Extension `asn1:"explicit,tag:1,optional"`
-}
-
-type revokedInfo struct {
-	RevocationTime time.Time       `asn1:"generalized"`
-	Reason         asn1.Enumerated `asn1:"explicit,tag:0,optional"`
-}
-
-var (
-	oidSignatureMD2WithRSA      = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 2}
-	oidSignatureMD5WithRSA      = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 4}
-	oidSignatureSHA1WithRSA     = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}
-	oidSignatureSHA256WithRSA   = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 11}
-	oidSignatureSHA384WithRSA   = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 12}
-	oidSignatureSHA512WithRSA   = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 13}
-	oidSignatureDSAWithSHA1     = asn1.ObjectIdentifier{1, 2, 840, 10040, 4, 3}
-	oidSignatureDSAWithSHA256   = asn1.ObjectIdentifier{2, 16, 840, 1, 101, 3, 4, 3, 2}
-	oidSignatureECDSAWithSHA1   = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 1}
-	oidSignatureECDSAWithSHA256 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 2}
-	oidSignatureECDSAWithSHA384 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 3}
-	oidSignatureECDSAWithSHA512 = asn1.ObjectIdentifier{1, 2, 840, 10045, 4, 3, 4}
-)
-
-var hashOIDs = map[crypto.Hash]asn1.ObjectIdentifier{
-	crypto.SHA1:   asn1.ObjectIdentifier([]int{1, 3, 14, 3, 2, 26}),
-	crypto.SHA256: asn1.ObjectIdentifier([]int{2, 16, 840, 1, 101, 3, 4, 2, 1}),
-	crypto.SHA384: asn1.ObjectIdentifier([]int{2, 16, 840, 1, 101, 3, 4, 2, 2}),
-	crypto.SHA512: asn1.ObjectIdentifier([]int{2, 16, 840, 1, 101, 3, 4, 2, 3}),
-}
-
-// TODO(rlb): This is also from crypto/x509, so same comment as AGL's below
-var signatureAlgorithmDetails = []struct {
-	algo       x509.SignatureAlgorithm
-	oid        asn1.ObjectIdentifier
-	pubKeyAlgo x509.PublicKeyAlgorithm
-	hash       crypto.Hash
-}{
-	{x509.MD2WithRSA, oidSignatureMD2WithRSA, x509.RSA, crypto.Hash(0) /* no value for MD2 */},
-	{x509.MD5WithRSA, oidSignatureMD5WithRSA, x509.RSA, crypto.MD5},
-	{x509.SHA1WithRSA, oidSignatureSHA1WithRSA, x509.RSA, crypto.SHA1},
-	{x509.SHA256WithRSA, oidSignatureSHA256WithRSA, x509.RSA, crypto.SHA256},
-	{x509.SHA384WithRSA, oidSignatureSHA384WithRSA, x509.RSA, crypto.SHA384},
-	{x509.SHA512WithRSA, oidSignatureSHA512WithRSA, x509.RSA, crypto.SHA512},
-	{x509.DSAWithSHA1, oidSignatureDSAWithSHA1, x509.DSA, crypto.SHA1},
-	{x509.DSAWithSHA256, oidSignatureDSAWithSHA256, x509.DSA, crypto.SHA256},
-	{x509.ECDSAWithSHA1, oidSignatureECDSAWithSHA1, x509.ECDSA, crypto.SHA1},
-	{x509.ECDSAWithSHA256, oidSignatureECDSAWithSHA256, x509.ECDSA, crypto.SHA256},
-	{x509.ECDSAWithSHA384, oidSignatureECDSAWithSHA384, x509.ECDSA, crypto.SHA384},
-	{x509.ECDSAWithSHA512, oidSignatureECDSAWithSHA512, x509.ECDSA, crypto.SHA512},
-}
-
-// TODO(rlb): This is also from crypto/x509, so same comment as AGL's below
-func signingParamsForPublicKey(pub interface{}, requestedSigAlgo x509.SignatureAlgorithm) (hashFunc crypto.Hash, sigAlgo pkix.AlgorithmIdentifier, err error) {
-	var pubType x509.PublicKeyAlgorithm
-
-	switch pub := pub.(type) {
-	case *rsa.PublicKey:
-		pubType = x509.RSA
-		hashFunc = crypto.SHA256
-		sigAlgo.Algorithm = oidSignatureSHA256WithRSA
-		sigAlgo.Parameters = asn1.RawValue{
-			Tag: 5,
-		}
-
-	case *ecdsa.PublicKey:
-		pubType = x509.ECDSA
-
-		switch pub.Curve {
-		case elliptic.P224(), elliptic.P256():
-			hashFunc = crypto.SHA256
-			sigAlgo.Algorithm = oidSignatureECDSAWithSHA256
-		case elliptic.P384():
-			hashFunc = crypto.SHA384
-			sigAlgo.Algorithm = oidSignatureECDSAWithSHA384
-		case elliptic.P521():
-			hashFunc = crypto.SHA512
-			sigAlgo.Algorithm = oidSignatureECDSAWithSHA512
-		default:
-			err = errors.New("x509: unknown elliptic curve")
-		}
-
-	default:
-		err = errors.New("x509: only RSA and ECDSA keys supported")
-	}
-
-	if err != nil {
-		return
-	}
-
-	if requestedSigAlgo == 0 {
-		return
-	}
-
-	found := false
-	for _, details := range signatureAlgorithmDetails {
-		if details.algo == requestedSigAlgo {
-			if details.pubKeyAlgo != pubType {
-				err = errors.New("x509: requested SignatureAlgorithm does not match private key type")
-				return
-			}
-			sigAlgo.Algorithm, hashFunc = details.oid, details.hash
-			if hashFunc == 0 {
-				err = errors.New("x509: cannot sign with hash function requested")
-				return
-			}
-			found = true
-			break
-		}
-	}
-
-	if !found {
-		err = errors.New("x509: unknown SignatureAlgorithm")
-	}
-
-	return
-}
-
-// TODO(agl): this is taken from crypto/x509 and so should probably be exported
-// from crypto/x509 or crypto/x509/pkix.
-func getSignatureAlgorithmFromOID(oid asn1.ObjectIdentifier) x509.SignatureAlgorithm {
-	for _, details := range signatureAlgorithmDetails {
-		if oid.Equal(details.oid) {
-			return details.algo
-		}
-	}
-	return x509.UnknownSignatureAlgorithm
-}
-
-// TODO(rlb): This is not taken from crypto/x509, but it's of the same general form.
-func getHashAlgorithmFromOID(target asn1.ObjectIdentifier) crypto.Hash {
-	for hash, oid := range hashOIDs {
-		if oid.Equal(target) {
-			return hash
-		}
-	}
-	return crypto.Hash(0)
-}
-
-func getOIDFromHashAlgorithm(target crypto.Hash) asn1.ObjectIdentifier {
-	for hash, oid := range hashOIDs {
-		if hash == target {
-			return oid
-		}
-	}
-	return nil
-}
-
-// This is the exposed reflection of the internal OCSP structures.
-
-// The status values that can be expressed in OCSP.  See RFC 6960.
-const (
-	// Good means that the certificate is valid.
-	Good = iota
-	// Revoked means that the certificate has been deliberately revoked.
-	Revoked
-	// Unknown means that the OCSP responder doesn't know about the certificate.
-	Unknown
-	// ServerFailed is unused and was never used (see
-	// https://go-review.googlesource.com/#/c/18944). ParseResponse will
-	// return a ResponseError when an error response is parsed.
-	ServerFailed
-)
-
-// The enumerated reasons for revoking a certificate.  See RFC 5280.
-const (
-	Unspecified          = 0
-	KeyCompromise        = 1
-	CACompromise         = 2
-	AffiliationChanged   = 3
-	Superseded           = 4
-	CessationOfOperation = 5
-	CertificateHold      = 6
-
-	RemoveFromCRL      = 8
-	PrivilegeWithdrawn = 9
-	AACompromise       = 10
-)
-
-// Request represents an OCSP request. See RFC 6960.
-type Request struct {
-	HashAlgorithm  crypto.Hash
-	IssuerNameHash []byte
-	IssuerKeyHash  []byte
-	SerialNumber   *big.Int
-}
-
-// Marshal marshals the OCSP request to ASN.1 DER encoded form.
-func (req *Request) Marshal() ([]byte, error) {
-	hashAlg := getOIDFromHashAlgorithm(req.HashAlgorithm)
-	if hashAlg == nil {
-		return nil, errors.New("Unknown hash algorithm")
-	}
-	return asn1.Marshal(ocspRequest{
-		tbsRequest{
-			Version: 0,
-			RequestList: []request{
-				{
-					Cert: certID{
-						pkix.AlgorithmIdentifier{
-							Algorithm:  hashAlg,
-							Parameters: asn1.RawValue{Tag: 5 /* ASN.1 NULL */},
-						},
-						req.IssuerNameHash,
-						req.IssuerKeyHash,
-						req.SerialNumber,
-					},
-				},
-			},
-		},
-	})
-}
-
-// Response represents an OCSP response containing a single SingleResponse. See
-// RFC 6960.
-type Response struct {
-	// Status is one of {Good, Revoked, Unknown}
-	Status                                        int
-	SerialNumber                                  *big.Int
-	ProducedAt, ThisUpdate, NextUpdate, RevokedAt time.Time
-	RevocationReason                              int
-	Certificate                                   *x509.Certificate
-	// TBSResponseData contains the raw bytes of the signed response. If
-	// Certificate is nil then this can be used to verify Signature.
-	TBSResponseData    []byte
-	Signature          []byte
-	SignatureAlgorithm x509.SignatureAlgorithm
-
-	// IssuerHash is the hash used to compute the IssuerNameHash and IssuerKeyHash.
-	// Valid values are crypto.SHA1, crypto.SHA256, crypto.SHA384, and crypto.SHA512.
-	// If zero, the default is crypto.SHA1.
-	IssuerHash crypto.Hash
-
-	// RawResponderName optionally contains the DER-encoded subject of the
-	// responder certificate. Exactly one of RawResponderName and
-	// ResponderKeyHash is set.
-	RawResponderName []byte
-	// ResponderKeyHash optionally contains the SHA-1 hash of the
-	// responder's public key. Exactly one of RawResponderName and
-	// ResponderKeyHash is set.
-	ResponderKeyHash []byte
-
-	// Extensions contains raw X.509 extensions from the singleExtensions field
-	// of the OCSP response. When parsing certificates, this can be used to
-	// extract non-critical extensions that are not parsed by this package. When
-	// marshaling OCSP responses, the Extensions field is ignored, see
-	// ExtraExtensions.
-	Extensions []pkix.Extension
-
-	// ExtraExtensions contains extensions to be copied, raw, into any marshaled
-	// OCSP response (in the singleExtensions field). Values override any
-	// extensions that would otherwise be produced based on the other fields. The
-	// ExtraExtensions field is not populated when parsing certificates, see
-	// Extensions.
-	ExtraExtensions []pkix.Extension
-}
-
-// These are pre-serialized error responses for the various non-success codes
-// defined by OCSP. The Unauthorized code in particular can be used by an OCSP
-// responder that supports only pre-signed responses as a response to requests
-// for certificates with unknown status. See RFC 5019.
-var (
-	MalformedRequestErrorResponse = []byte{0x30, 0x03, 0x0A, 0x01, 0x01}
-	InternalErrorErrorResponse    = []byte{0x30, 0x03, 0x0A, 0x01, 0x02}
-	TryLaterErrorResponse         = []byte{0x30, 0x03, 0x0A, 0x01, 0x03}
-	SigRequredErrorResponse       = []byte{0x30, 0x03, 0x0A, 0x01, 0x05}
-	UnauthorizedErrorResponse     = []byte{0x30, 0x03, 0x0A, 0x01, 0x06}
-)
-
-// CheckSignatureFrom checks that the signature in resp is a valid signature
-// from issuer. This should only be used if resp.Certificate is nil. Otherwise,
-// the OCSP response contained an intermediate certificate that created the
-// signature. That signature is checked by ParseResponse and only
-// resp.Certificate remains to be validated.
-func (resp *Response) CheckSignatureFrom(issuer *x509.Certificate) error {
-	return issuer.CheckSignature(resp.SignatureAlgorithm, resp.TBSResponseData, resp.Signature)
-}
-
-// ParseError results from an invalid OCSP response.
-type ParseError string
-
-func (p ParseError) Error() string {
-	return string(p)
-}
-
-// ParseRequest parses an OCSP request in DER form. It only supports
-// requests for a single certificate. Signed requests are not supported.
-// If a request includes a signature, it will result in a ParseError.
-func ParseRequest(bytes []byte) (*Request, error) {
-	var req ocspRequest
-	rest, err := asn1.Unmarshal(bytes, &req)
-	if err != nil {
-		return nil, err
-	}
-	if len(rest) > 0 {
-		return nil, ParseError("trailing data in OCSP request")
-	}
-
-	if len(req.TBSRequest.RequestList) == 0 {
-		return nil, ParseError("OCSP request contains no request body")
-	}
-	innerRequest := req.TBSRequest.RequestList[0]
-
-	hashFunc := getHashAlgorithmFromOID(innerRequest.Cert.HashAlgorithm.Algorithm)
-	if hashFunc == crypto.Hash(0) {
-		return nil, ParseError("OCSP request uses unknown hash function")
-	}
-
-	return &Request{
-		HashAlgorithm:  hashFunc,
-		IssuerNameHash: innerRequest.Cert.NameHash,
-		IssuerKeyHash:  innerRequest.Cert.IssuerKeyHash,
-		SerialNumber:   innerRequest.Cert.SerialNumber,
-	}, nil
-}
-
-// ParseResponse parses an OCSP response in DER form. It only supports
-// responses for a single certificate. If the response contains a certificate
-// then the signature over the response is checked. If issuer is not nil then
-// it will be used to validate the signature or embedded certificate.
-//
-// Invalid responses and parse failures will result in a ParseError.
-// Error responses will result in a ResponseError.
-func ParseResponse(bytes []byte, issuer *x509.Certificate) (*Response, error) {
-	return ParseResponseForCert(bytes, nil, issuer)
-}
-
-// ParseResponseForCert parses an OCSP response in DER form and searches for a
-// Response relating to cert. If such a Response is found and the OCSP response
-// contains a certificate then the signature over the response is checked. If
-// issuer is not nil then it will be used to validate the signature or embedded
-// certificate.
-//
-// Invalid responses and parse failures will result in a ParseError.
-// Error responses will result in a ResponseError.
-func ParseResponseForCert(bytes []byte, cert, issuer *x509.Certificate) (*Response, error) {
-	var resp responseASN1
-	rest, err := asn1.Unmarshal(bytes, &resp)
-	if err != nil {
-		return nil, err
-	}
-	if len(rest) > 0 {
-		return nil, ParseError("trailing data in OCSP response")
-	}
-
-	if status := ResponseStatus(resp.Status); status != Success {
-		return nil, ResponseError{status}
-	}
-
-	if !resp.Response.ResponseType.Equal(idPKIXOCSPBasic) {
-		return nil, ParseError("bad OCSP response type")
-	}
-
-	var basicResp basicResponse
-	rest, err = asn1.Unmarshal(resp.Response.Response, &basicResp)
-	if err != nil {
-		return nil, err
-	}
-
-	if n := len(basicResp.TBSResponseData.Responses); n == 0 || cert == nil && n > 1 {
-		return nil, ParseError("OCSP response contains bad number of responses")
-	}
-
-	var singleResp singleResponse
-	if cert == nil {
-		singleResp = basicResp.TBSResponseData.Responses[0]
-	} else {
-		match := false
-		for _, resp := range basicResp.TBSResponseData.Responses {
-			if cert.SerialNumber.Cmp(resp.CertID.SerialNumber) == 0 {
-				singleResp = resp
-				match = true
-				break
-			}
-		}
-		if !match {
-			return nil, ParseError("no response matching the supplied certificate")
-		}
-	}
-
-	ret := &Response{
-		TBSResponseData:    basicResp.TBSResponseData.Raw,
-		Signature:          basicResp.Signature.RightAlign(),
-		SignatureAlgorithm: getSignatureAlgorithmFromOID(basicResp.SignatureAlgorithm.Algorithm),
-		Extensions:         singleResp.SingleExtensions,
-		SerialNumber:       singleResp.CertID.SerialNumber,
-		ProducedAt:         basicResp.TBSResponseData.ProducedAt,
-		ThisUpdate:         singleResp.ThisUpdate,
-		NextUpdate:         singleResp.NextUpdate,
-	}
-
-	// Handle the ResponderID CHOICE tag. ResponderID can be flattened into
-	// TBSResponseData once https://go-review.googlesource.com/34503 has been
-	// released.
-	rawResponderID := basicResp.TBSResponseData.RawResponderID
-	switch rawResponderID.Tag {
-	case 1: // Name
-		var rdn pkix.RDNSequence
-		if rest, err := asn1.Unmarshal(rawResponderID.Bytes, &rdn); err != nil || len(rest) != 0 {
-			return nil, ParseError("invalid responder name")
-		}
-		ret.RawResponderName = rawResponderID.Bytes
-	case 2: // KeyHash
-		if rest, err := asn1.Unmarshal(rawResponderID.Bytes, &ret.ResponderKeyHash); err != nil || len(rest) != 0 {
-			return nil, ParseError("invalid responder key hash")
-		}
-	default:
-		return nil, ParseError("invalid responder id tag")
-	}
-
-	if len(basicResp.Certificates) > 0 {
-		// Responders should only send a single certificate (if they
-		// send any) that connects the responder's certificate to the
-		// original issuer. We accept responses with multiple
-		// certificates due to a number responders sending them[1], but
-		// ignore all but the first.
-		//
-		// [1] https://github.com/golang/go/issues/21527
-		ret.Certificate, err = x509.ParseCertificate(basicResp.Certificates[0].FullBytes)
-		if err != nil {
-			return nil, err
-		}
-
-		if err := ret.CheckSignatureFrom(ret.Certificate); err != nil {
-			return nil, ParseError("bad signature on embedded certificate: " + err.Error())
-		}
-
-		if issuer != nil {
-			if err := issuer.CheckSignature(ret.Certificate.SignatureAlgorithm, ret.Certificate.RawTBSCertificate, ret.Certificate.Signature); err != nil {
-				return nil, ParseError("bad OCSP signature: " + err.Error())
-			}
-		}
-	} else if issuer != nil {
-		if err := ret.CheckSignatureFrom(issuer); err != nil {
-			return nil, ParseError("bad OCSP signature: " + err.Error())
-		}
-	}
-
-	for _, ext := range singleResp.SingleExtensions {
-		if ext.Critical {
-			return nil, ParseError("unsupported critical extension")
-		}
-	}
-
-	for h, oid := range hashOIDs {
-		if singleResp.CertID.HashAlgorithm.Algorithm.Equal(oid) {
-			ret.IssuerHash = h
-			break
-		}
-	}
-	if ret.IssuerHash == 0 {
-		return nil, ParseError("unsupported issuer hash algorithm")
-	}
-
-	switch {
-	case bool(singleResp.Good):
-		ret.Status = Good
-	case bool(singleResp.Unknown):
-		ret.Status = Unknown
-	default:
-		ret.Status = Revoked
-		ret.RevokedAt = singleResp.Revoked.RevocationTime
-		ret.RevocationReason = int(singleResp.Revoked.Reason)
-	}
-
-	return ret, nil
-}
-
-// RequestOptions contains options for constructing OCSP requests.
-type RequestOptions struct {
-	// Hash contains the hash function that should be used when
-	// constructing the OCSP request. If zero, SHA-1 will be used.
-	Hash crypto.Hash
-}
-
-func (opts *RequestOptions) hash() crypto.Hash {
-	if opts == nil || opts.Hash == 0 {
-		// SHA-1 is nearly universally used in OCSP.
-		return crypto.SHA1
-	}
-	return opts.Hash
-}
-
-// CreateRequest returns a DER-encoded, OCSP request for the status of cert. If
-// opts is nil then sensible defaults are used.
-func CreateRequest(cert, issuer *x509.Certificate, opts *RequestOptions) ([]byte, error) {
-	hashFunc := opts.hash()
-
-	// OCSP seems to be the only place where these raw hash identifiers are
-	// used. I took the following from
-	// http://msdn.microsoft.com/en-us/library/ff635603.aspx
-	_, ok := hashOIDs[hashFunc]
-	if !ok {
-		return nil, x509.ErrUnsupportedAlgorithm
-	}
-
-	if !hashFunc.Available() {
-		return nil, x509.ErrUnsupportedAlgorithm
-	}
-	h := opts.hash().New()
-
-	var publicKeyInfo struct {
-		Algorithm pkix.AlgorithmIdentifier
-		PublicKey asn1.BitString
-	}
-	if _, err := asn1.Unmarshal(issuer.RawSubjectPublicKeyInfo, &publicKeyInfo); err != nil {
-		return nil, err
-	}
-
-	h.Write(publicKeyInfo.PublicKey.RightAlign())
-	issuerKeyHash := h.Sum(nil)
-
-	h.Reset()
-	h.Write(issuer.RawSubject)
-	issuerNameHash := h.Sum(nil)
-
-	req := &Request{
-		HashAlgorithm:  hashFunc,
-		IssuerNameHash: issuerNameHash,
-		IssuerKeyHash:  issuerKeyHash,
-		SerialNumber:   cert.SerialNumber,
-	}
-	return req.Marshal()
-}
-
-// CreateResponse returns a DER-encoded OCSP response with the specified contents.
-// The fields in the response are populated as follows:
-//
-// The responder cert is used to populate the responder's name field, and the
-// certificate itself is provided alongside the OCSP response signature.
-//
-// The issuer cert is used to puplate the IssuerNameHash and IssuerKeyHash fields.
-//
-// The template is used to populate the SerialNumber, Status, RevokedAt,
-// RevocationReason, ThisUpdate, and NextUpdate fields.
-//
-// If template.IssuerHash is not set, SHA1 will be used.
-//
-// The ProducedAt date is automatically set to the current date, to the nearest minute.
-func CreateResponse(issuer, responderCert *x509.Certificate, template Response, priv crypto.Signer) ([]byte, error) {
-	var publicKeyInfo struct {
-		Algorithm pkix.AlgorithmIdentifier
-		PublicKey asn1.BitString
-	}
-	if _, err := asn1.Unmarshal(issuer.RawSubjectPublicKeyInfo, &publicKeyInfo); err != nil {
-		return nil, err
-	}
-
-	if template.IssuerHash == 0 {
-		template.IssuerHash = crypto.SHA1
-	}
-	hashOID := getOIDFromHashAlgorithm(template.IssuerHash)
-	if hashOID == nil {
-		return nil, errors.New("unsupported issuer hash algorithm")
-	}
-
-	if !template.IssuerHash.Available() {
-		return nil, fmt.Errorf("issuer hash algorithm %v not linked into binary", template.IssuerHash)
-	}
-	h := template.IssuerHash.New()
-	h.Write(publicKeyInfo.PublicKey.RightAlign())
-	issuerKeyHash := h.Sum(nil)
-
-	h.Reset()
-	h.Write(issuer.RawSubject)
-	issuerNameHash := h.Sum(nil)
-
-	innerResponse := singleResponse{
-		CertID: certID{
-			HashAlgorithm: pkix.AlgorithmIdentifier{
-				Algorithm:  hashOID,
-				Parameters: asn1.RawValue{Tag: 5 /* ASN.1 NULL */},
-			},
-			NameHash:      issuerNameHash,
-			IssuerKeyHash: issuerKeyHash,
-			SerialNumber:  template.SerialNumber,
-		},
-		ThisUpdate:       template.ThisUpdate.UTC(),
-		NextUpdate:       template.NextUpdate.UTC(),
-		SingleExtensions: template.ExtraExtensions,
-	}
-
-	switch template.Status {
-	case Good:
-		innerResponse.Good = true
-	case Unknown:
-		innerResponse.Unknown = true
-	case Revoked:
-		innerResponse.Revoked = revokedInfo{
-			RevocationTime: template.RevokedAt.UTC(),
-			Reason:         asn1.Enumerated(template.RevocationReason),
-		}
-	}
-
-	rawResponderID := asn1.RawValue{
-		Class:      2, // context-specific
-		Tag:        1, // Name (explicit tag)
-		IsCompound: true,
-		Bytes:      responderCert.RawSubject,
-	}
-	tbsResponseData := responseData{
-		Version:        0,
-		RawResponderID: rawResponderID,
-		ProducedAt:     time.Now().Truncate(time.Minute).UTC(),
-		Responses:      []singleResponse{innerResponse},
-	}
-
-	tbsResponseDataDER, err := asn1.Marshal(tbsResponseData)
-	if err != nil {
-		return nil, err
-	}
-
-	hashFunc, signatureAlgorithm, err := signingParamsForPublicKey(priv.Public(), template.SignatureAlgorithm)
-	if err != nil {
-		return nil, err
-	}
-
-	responseHash := hashFunc.New()
-	responseHash.Write(tbsResponseDataDER)
-	signature, err := priv.Sign(rand.Reader, responseHash.Sum(nil), hashFunc)
-	if err != nil {
-		return nil, err
-	}
-
-	response := basicResponse{
-		TBSResponseData:    tbsResponseData,
-		SignatureAlgorithm: signatureAlgorithm,
-		Signature: asn1.BitString{
-			Bytes:     signature,
-			BitLength: 8 * len(signature),
-		},
-	}
-	if template.Certificate != nil {
-		response.Certificates = []asn1.RawValue{
-			{FullBytes: template.Certificate.Raw},
-		}
-	}
-	responseDER, err := asn1.Marshal(response)
-	if err != nil {
-		return nil, err
-	}
-
-	return asn1.Marshal(responseASN1{
-		Status: asn1.Enumerated(Success),
-		Response: responseBytes{
-			ResponseType: idPKIXOCSPBasic,
-			Response:     responseDER,
-		},
-	})
-}
diff --git a/vendor/golang.org/x/crypto/ocsp/ocsp_test.go b/vendor/golang.org/x/crypto/ocsp/ocsp_test.go
deleted file mode 100644
index 70b1976..0000000
--- a/vendor/golang.org/x/crypto/ocsp/ocsp_test.go
+++ /dev/null
@@ -1,875 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.7
-
-package ocsp
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/sha1"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"encoding/hex"
-	"math/big"
-	"reflect"
-	"testing"
-	"time"
-)
-
-func TestOCSPDecode(t *testing.T) {
-	responseBytes, _ := hex.DecodeString(ocspResponseHex)
-	resp, err := ParseResponse(responseBytes, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	responderCert, _ := hex.DecodeString(startComResponderCertHex)
-	responder, err := x509.ParseCertificate(responderCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	expected := Response{
-		Status:           Good,
-		SerialNumber:     big.NewInt(0x1d0fa),
-		RevocationReason: Unspecified,
-		ThisUpdate:       time.Date(2010, 7, 7, 15, 1, 5, 0, time.UTC),
-		NextUpdate:       time.Date(2010, 7, 7, 18, 35, 17, 0, time.UTC),
-		RawResponderName: responder.RawSubject,
-	}
-
-	if !reflect.DeepEqual(resp.ThisUpdate, expected.ThisUpdate) {
-		t.Errorf("resp.ThisUpdate: got %v, want %v", resp.ThisUpdate, expected.ThisUpdate)
-	}
-
-	if !reflect.DeepEqual(resp.NextUpdate, expected.NextUpdate) {
-		t.Errorf("resp.NextUpdate: got %v, want %v", resp.NextUpdate, expected.NextUpdate)
-	}
-
-	if resp.Status != expected.Status {
-		t.Errorf("resp.Status: got %d, want %d", resp.Status, expected.Status)
-	}
-
-	if resp.SerialNumber.Cmp(expected.SerialNumber) != 0 {
-		t.Errorf("resp.SerialNumber: got %x, want %x", resp.SerialNumber, expected.SerialNumber)
-	}
-
-	if resp.RevocationReason != expected.RevocationReason {
-		t.Errorf("resp.RevocationReason: got %d, want %d", resp.RevocationReason, expected.RevocationReason)
-	}
-
-	if !bytes.Equal(resp.RawResponderName, expected.RawResponderName) {
-		t.Errorf("resp.RawResponderName: got %x, want %x", resp.RawResponderName, expected.RawResponderName)
-	}
-
-	if !bytes.Equal(resp.ResponderKeyHash, expected.ResponderKeyHash) {
-		t.Errorf("resp.ResponderKeyHash: got %x, want %x", resp.ResponderKeyHash, expected.ResponderKeyHash)
-	}
-}
-
-func TestOCSPDecodeWithoutCert(t *testing.T) {
-	responseBytes, _ := hex.DecodeString(ocspResponseWithoutCertHex)
-	_, err := ParseResponse(responseBytes, nil)
-	if err != nil {
-		t.Error(err)
-	}
-}
-
-func TestOCSPDecodeWithExtensions(t *testing.T) {
-	responseBytes, _ := hex.DecodeString(ocspResponseWithCriticalExtensionHex)
-	_, err := ParseResponse(responseBytes, nil)
-	if err == nil {
-		t.Error(err)
-	}
-
-	responseBytes, _ = hex.DecodeString(ocspResponseWithExtensionHex)
-	response, err := ParseResponse(responseBytes, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(response.Extensions) != 1 {
-		t.Errorf("len(response.Extensions): got %v, want %v", len(response.Extensions), 1)
-	}
-
-	extensionBytes := response.Extensions[0].Value
-	expectedBytes, _ := hex.DecodeString(ocspExtensionValueHex)
-	if !bytes.Equal(extensionBytes, expectedBytes) {
-		t.Errorf("response.Extensions[0]: got %x, want %x", extensionBytes, expectedBytes)
-	}
-}
-
-func TestOCSPSignature(t *testing.T) {
-	issuerCert, _ := hex.DecodeString(startComHex)
-	issuer, err := x509.ParseCertificate(issuerCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	response, _ := hex.DecodeString(ocspResponseHex)
-	if _, err := ParseResponse(response, issuer); err != nil {
-		t.Error(err)
-	}
-}
-
-func TestOCSPRequest(t *testing.T) {
-	leafCert, _ := hex.DecodeString(leafCertHex)
-	cert, err := x509.ParseCertificate(leafCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	issuerCert, _ := hex.DecodeString(issuerCertHex)
-	issuer, err := x509.ParseCertificate(issuerCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	request, err := CreateRequest(cert, issuer, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	expectedBytes, _ := hex.DecodeString(ocspRequestHex)
-	if !bytes.Equal(request, expectedBytes) {
-		t.Errorf("request: got %x, wanted %x", request, expectedBytes)
-	}
-
-	decodedRequest, err := ParseRequest(expectedBytes)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if decodedRequest.HashAlgorithm != crypto.SHA1 {
-		t.Errorf("request.HashAlgorithm: got %v, want %v", decodedRequest.HashAlgorithm, crypto.SHA1)
-	}
-
-	var publicKeyInfo struct {
-		Algorithm pkix.AlgorithmIdentifier
-		PublicKey asn1.BitString
-	}
-	_, err = asn1.Unmarshal(issuer.RawSubjectPublicKeyInfo, &publicKeyInfo)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	h := sha1.New()
-	h.Write(publicKeyInfo.PublicKey.RightAlign())
-	issuerKeyHash := h.Sum(nil)
-
-	h.Reset()
-	h.Write(issuer.RawSubject)
-	issuerNameHash := h.Sum(nil)
-
-	if got := decodedRequest.IssuerKeyHash; !bytes.Equal(got, issuerKeyHash) {
-		t.Errorf("request.IssuerKeyHash: got %x, want %x", got, issuerKeyHash)
-	}
-
-	if got := decodedRequest.IssuerNameHash; !bytes.Equal(got, issuerNameHash) {
-		t.Errorf("request.IssuerKeyHash: got %x, want %x", got, issuerNameHash)
-	}
-
-	if got := decodedRequest.SerialNumber; got.Cmp(cert.SerialNumber) != 0 {
-		t.Errorf("request.SerialNumber: got %x, want %x", got, cert.SerialNumber)
-	}
-
-	marshaledRequest, err := decodedRequest.Marshal()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if bytes.Compare(expectedBytes, marshaledRequest) != 0 {
-		t.Errorf(
-			"Marshaled request doesn't match expected: wanted %x, got %x",
-			expectedBytes,
-			marshaledRequest,
-		)
-	}
-}
-
-func TestOCSPResponse(t *testing.T) {
-	leafCert, _ := hex.DecodeString(leafCertHex)
-	leaf, err := x509.ParseCertificate(leafCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	issuerCert, _ := hex.DecodeString(issuerCertHex)
-	issuer, err := x509.ParseCertificate(issuerCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	responderCert, _ := hex.DecodeString(responderCertHex)
-	responder, err := x509.ParseCertificate(responderCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	responderPrivateKeyDER, _ := hex.DecodeString(responderPrivateKeyHex)
-	responderPrivateKey, err := x509.ParsePKCS1PrivateKey(responderPrivateKeyDER)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	extensionBytes, _ := hex.DecodeString(ocspExtensionValueHex)
-	extensions := []pkix.Extension{
-		{
-			Id:       ocspExtensionOID,
-			Critical: false,
-			Value:    extensionBytes,
-		},
-	}
-
-	thisUpdate := time.Date(2010, 7, 7, 15, 1, 5, 0, time.UTC)
-	nextUpdate := time.Date(2010, 7, 7, 18, 35, 17, 0, time.UTC)
-	template := Response{
-		Status:           Revoked,
-		SerialNumber:     leaf.SerialNumber,
-		ThisUpdate:       thisUpdate,
-		NextUpdate:       nextUpdate,
-		RevokedAt:        thisUpdate,
-		RevocationReason: KeyCompromise,
-		Certificate:      responder,
-		ExtraExtensions:  extensions,
-	}
-
-	template.IssuerHash = crypto.MD5
-	_, err = CreateResponse(issuer, responder, template, responderPrivateKey)
-	if err == nil {
-		t.Fatal("CreateResponse didn't fail with non-valid template.IssuerHash value crypto.MD5")
-	}
-
-	testCases := []struct {
-		name       string
-		issuerHash crypto.Hash
-	}{
-		{"Zero value", 0},
-		{"crypto.SHA1", crypto.SHA1},
-		{"crypto.SHA256", crypto.SHA256},
-		{"crypto.SHA384", crypto.SHA384},
-		{"crypto.SHA512", crypto.SHA512},
-	}
-	for _, tc := range testCases {
-		t.Run(tc.name, func(t *testing.T) {
-			template.IssuerHash = tc.issuerHash
-			responseBytes, err := CreateResponse(issuer, responder, template, responderPrivateKey)
-			if err != nil {
-				t.Fatalf("CreateResponse failed: %s", err)
-			}
-
-			resp, err := ParseResponse(responseBytes, nil)
-			if err != nil {
-				t.Fatalf("ParseResponse failed: %s", err)
-			}
-
-			if !reflect.DeepEqual(resp.ThisUpdate, template.ThisUpdate) {
-				t.Errorf("resp.ThisUpdate: got %v, want %v", resp.ThisUpdate, template.ThisUpdate)
-			}
-
-			if !reflect.DeepEqual(resp.NextUpdate, template.NextUpdate) {
-				t.Errorf("resp.NextUpdate: got %v, want %v", resp.NextUpdate, template.NextUpdate)
-			}
-
-			if !reflect.DeepEqual(resp.RevokedAt, template.RevokedAt) {
-				t.Errorf("resp.RevokedAt: got %v, want %v", resp.RevokedAt, template.RevokedAt)
-			}
-
-			if !reflect.DeepEqual(resp.Extensions, template.ExtraExtensions) {
-				t.Errorf("resp.Extensions: got %v, want %v", resp.Extensions, template.ExtraExtensions)
-			}
-
-			delay := time.Since(resp.ProducedAt)
-			if delay < -time.Hour || delay > time.Hour {
-				t.Errorf("resp.ProducedAt: got %s, want close to current time (%s)", resp.ProducedAt, time.Now())
-			}
-
-			if resp.Status != template.Status {
-				t.Errorf("resp.Status: got %d, want %d", resp.Status, template.Status)
-			}
-
-			if resp.SerialNumber.Cmp(template.SerialNumber) != 0 {
-				t.Errorf("resp.SerialNumber: got %x, want %x", resp.SerialNumber, template.SerialNumber)
-			}
-
-			if resp.RevocationReason != template.RevocationReason {
-				t.Errorf("resp.RevocationReason: got %d, want %d", resp.RevocationReason, template.RevocationReason)
-			}
-
-			expectedHash := tc.issuerHash
-			if tc.issuerHash == 0 {
-				expectedHash = crypto.SHA1
-			}
-
-			if resp.IssuerHash != expectedHash {
-				t.Errorf("resp.IssuerHash: got %d, want %d", resp.IssuerHash, expectedHash)
-			}
-		})
-	}
-}
-
-func TestErrorResponse(t *testing.T) {
-	responseBytes, _ := hex.DecodeString(errorResponseHex)
-	_, err := ParseResponse(responseBytes, nil)
-
-	respErr, ok := err.(ResponseError)
-	if !ok {
-		t.Fatalf("expected ResponseError from ParseResponse but got %#v", err)
-	}
-	if respErr.Status != Malformed {
-		t.Fatalf("expected Malformed status from ParseResponse but got %d", respErr.Status)
-	}
-}
-
-func TestOCSPDecodeMultiResponse(t *testing.T) {
-	inclCert, _ := hex.DecodeString(ocspMultiResponseCertHex)
-	cert, err := x509.ParseCertificate(inclCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	responseBytes, _ := hex.DecodeString(ocspMultiResponseHex)
-	resp, err := ParseResponseForCert(responseBytes, cert, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if resp.SerialNumber.Cmp(cert.SerialNumber) != 0 {
-		t.Errorf("resp.SerialNumber: got %x, want %x", resp.SerialNumber, cert.SerialNumber)
-	}
-}
-
-func TestOCSPDecodeMultiResponseWithoutMatchingCert(t *testing.T) {
-	wrongCert, _ := hex.DecodeString(startComHex)
-	cert, err := x509.ParseCertificate(wrongCert)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	responseBytes, _ := hex.DecodeString(ocspMultiResponseHex)
-	_, err = ParseResponseForCert(responseBytes, cert, nil)
-	want := ParseError("no response matching the supplied certificate")
-	if err != want {
-		t.Errorf("err: got %q, want %q", err, want)
-	}
-}
-
-// This OCSP response was taken from Thawte's public OCSP responder.
-// To recreate:
-//   $ openssl s_client -tls1 -showcerts -servername www.google.com -connect www.google.com:443
-// Copy and paste the first certificate into /tmp/cert.crt and the second into
-// /tmp/intermediate.crt
-//   $ openssl ocsp -issuer /tmp/intermediate.crt -cert /tmp/cert.crt -url http://ocsp.thawte.com -resp_text -respout /tmp/ocsp.der
-// Then hex encode the result:
-//   $ python -c 'print file("/tmp/ocsp.der", "r").read().encode("hex")'
-
-const ocspResponseHex = "308206bc0a0100a08206b5308206b106092b0601050507300101048206a23082069e3081" +
-	"c9a14e304c310b300906035504061302494c31163014060355040a130d5374617274436f" +
-	"6d204c74642e312530230603550403131c5374617274436f6d20436c6173732031204f43" +
-	"5350205369676e6572180f32303130303730373137333531375a30663064303c30090605" +
-	"2b0e03021a050004146568874f40750f016a3475625e1f5c93e5a26d580414eb4234d098" +
-	"b0ab9ff41b6b08f7cc642eef0e2c45020301d0fa8000180f323031303037303731353031" +
-	"30355aa011180f32303130303730373138333531375a300d06092a864886f70d01010505" +
-	"000382010100ab557ff070d1d7cebbb5f0ec91a15c3fed22eb2e1b8244f1b84545f013a4" +
-	"fb46214c5e3fbfbebb8a56acc2b9db19f68fd3c3201046b3824d5ba689f99864328710cb" +
-	"467195eb37d84f539e49f859316b32964dc3e47e36814ce94d6c56dd02733b1d0802f7ff" +
-	"4eebdbbd2927dcf580f16cbc290f91e81b53cb365e7223f1d6e20a88ea064104875e0145" +
-	"672b20fc14829d51ca122f5f5d77d3ad6c83889c55c7dc43680ba2fe3cef8b05dbcabdc0" +
-	"d3e09aaf9725597f8c858c2fa38c0d6aed2e6318194420dd1a1137445d13e1c97ab47896" +
-	"17a4e08925f46f867b72e3a4dc1f08cb870b2b0717f7207faa0ac512e628a029aba7457a" +
-	"e63dcf3281e2162d9349a08204ba308204b6308204b23082039aa003020102020101300d" +
-	"06092a864886f70d010105050030818c310b300906035504061302494c31163014060355" +
-	"040a130d5374617274436f6d204c74642e312b3029060355040b13225365637572652044" +
-	"69676974616c204365727469666963617465205369676e696e6731383036060355040313" +
-	"2f5374617274436f6d20436c6173732031205072696d61727920496e7465726d65646961" +
-	"746520536572766572204341301e170d3037313032353030323330365a170d3132313032" +
-	"333030323330365a304c310b300906035504061302494c31163014060355040a130d5374" +
-	"617274436f6d204c74642e312530230603550403131c5374617274436f6d20436c617373" +
-	"2031204f435350205369676e657230820122300d06092a864886f70d0101010500038201" +
-	"0f003082010a0282010100b9561b4c45318717178084e96e178df2255e18ed8d8ecc7c2b" +
-	"7b51a6c1c2e6bf0aa3603066f132fe10ae97b50e99fa24b83fc53dd2777496387d14e1c3" +
-	"a9b6a4933e2ac12413d085570a95b8147414a0bc007c7bcf222446ef7f1a156d7ea1c577" +
-	"fc5f0facdfd42eb0f5974990cb2f5cefebceef4d1bdc7ae5c1075c5a99a93171f2b0845b" +
-	"4ff0864e973fcfe32f9d7511ff87a3e943410c90a4493a306b6944359340a9ca96f02b66" +
-	"ce67f028df2980a6aaee8d5d5d452b8b0eb93f923cc1e23fcccbdbe7ffcb114d08fa7a6a" +
-	"3c404f825d1a0e715935cf623a8c7b59670014ed0622f6089a9447a7a19010f7fe58f841" +
-	"29a2765ea367824d1c3bb2fda308530203010001a382015c30820158300c0603551d1301" +
-	"01ff04023000300b0603551d0f0404030203a8301e0603551d250417301506082b060105" +
-	"0507030906092b0601050507300105301d0603551d0e0416041445e0a36695414c5dd449" +
-	"bc00e33cdcdbd2343e173081a80603551d230481a030819d8014eb4234d098b0ab9ff41b" +
-	"6b08f7cc642eef0e2c45a18181a47f307d310b300906035504061302494c311630140603" +
-	"55040a130d5374617274436f6d204c74642e312b3029060355040b132253656375726520" +
-	"4469676974616c204365727469666963617465205369676e696e67312930270603550403" +
-	"13205374617274436f6d2043657274696669636174696f6e20417574686f726974798201" +
-	"0a30230603551d12041c301a8618687474703a2f2f7777772e737461727473736c2e636f" +
-	"6d2f302c06096086480186f842010d041f161d5374617274436f6d205265766f63617469" +
-	"6f6e20417574686f72697479300d06092a864886f70d01010505000382010100182d2215" +
-	"8f0fc0291324fa8574c49bb8ff2835085adcbf7b7fc4191c397ab6951328253fffe1e5ec" +
-	"2a7da0d50fca1a404e6968481366939e666c0a6209073eca57973e2fefa9ed1718e8176f" +
-	"1d85527ff522c08db702e3b2b180f1cbff05d98128252cf0f450f7dd2772f4188047f19d" +
-	"c85317366f94bc52d60f453a550af58e308aaab00ced33040b62bf37f5b1ab2a4f7f0f80" +
-	"f763bf4d707bc8841d7ad9385ee2a4244469260b6f2bf085977af9074796048ecc2f9d48" +
-	"a1d24ce16e41a9941568fec5b42771e118f16c106a54ccc339a4b02166445a167902e75e" +
-	"6d8620b0825dcd18a069b90fd851d10fa8effd409deec02860d26d8d833f304b10669b42"
-
-const startComResponderCertHex = "308204b23082039aa003020102020101300d06092a864886f70d010105050030818c310b" +
-	"300906035504061302494c31163014060355040a130d5374617274436f6d204c74642e31" +
-	"2b3029060355040b1322536563757265204469676974616c204365727469666963617465" +
-	"205369676e696e67313830360603550403132f5374617274436f6d20436c617373203120" +
-	"5072696d61727920496e7465726d65646961746520536572766572204341301e170d3037" +
-	"313032353030323330365a170d3132313032333030323330365a304c310b300906035504" +
-	"061302494c31163014060355040a130d5374617274436f6d204c74642e31253023060355" +
-	"0403131c5374617274436f6d20436c6173732031204f435350205369676e657230820122" +
-	"300d06092a864886f70d01010105000382010f003082010a0282010100b9561b4c453187" +
-	"17178084e96e178df2255e18ed8d8ecc7c2b7b51a6c1c2e6bf0aa3603066f132fe10ae97" +
-	"b50e99fa24b83fc53dd2777496387d14e1c3a9b6a4933e2ac12413d085570a95b8147414" +
-	"a0bc007c7bcf222446ef7f1a156d7ea1c577fc5f0facdfd42eb0f5974990cb2f5cefebce" +
-	"ef4d1bdc7ae5c1075c5a99a93171f2b0845b4ff0864e973fcfe32f9d7511ff87a3e94341" +
-	"0c90a4493a306b6944359340a9ca96f02b66ce67f028df2980a6aaee8d5d5d452b8b0eb9" +
-	"3f923cc1e23fcccbdbe7ffcb114d08fa7a6a3c404f825d1a0e715935cf623a8c7b596700" +
-	"14ed0622f6089a9447a7a19010f7fe58f84129a2765ea367824d1c3bb2fda30853020301" +
-	"0001a382015c30820158300c0603551d130101ff04023000300b0603551d0f0404030203" +
-	"a8301e0603551d250417301506082b0601050507030906092b0601050507300105301d06" +
-	"03551d0e0416041445e0a36695414c5dd449bc00e33cdcdbd2343e173081a80603551d23" +
-	"0481a030819d8014eb4234d098b0ab9ff41b6b08f7cc642eef0e2c45a18181a47f307d31" +
-	"0b300906035504061302494c31163014060355040a130d5374617274436f6d204c74642e" +
-	"312b3029060355040b1322536563757265204469676974616c2043657274696669636174" +
-	"65205369676e696e6731293027060355040313205374617274436f6d2043657274696669" +
-	"636174696f6e20417574686f7269747982010a30230603551d12041c301a861868747470" +
-	"3a2f2f7777772e737461727473736c2e636f6d2f302c06096086480186f842010d041f16" +
-	"1d5374617274436f6d205265766f636174696f6e20417574686f72697479300d06092a86" +
-	"4886f70d01010505000382010100182d22158f0fc0291324fa8574c49bb8ff2835085adc" +
-	"bf7b7fc4191c397ab6951328253fffe1e5ec2a7da0d50fca1a404e6968481366939e666c" +
-	"0a6209073eca57973e2fefa9ed1718e8176f1d85527ff522c08db702e3b2b180f1cbff05" +
-	"d98128252cf0f450f7dd2772f4188047f19dc85317366f94bc52d60f453a550af58e308a" +
-	"aab00ced33040b62bf37f5b1ab2a4f7f0f80f763bf4d707bc8841d7ad9385ee2a4244469" +
-	"260b6f2bf085977af9074796048ecc2f9d48a1d24ce16e41a9941568fec5b42771e118f1" +
-	"6c106a54ccc339a4b02166445a167902e75e6d8620b0825dcd18a069b90fd851d10fa8ef" +
-	"fd409deec02860d26d8d833f304b10669b42"
-
-const startComHex = "308206343082041ca003020102020118300d06092a864886f70d0101050500307d310b30" +
-	"0906035504061302494c31163014060355040a130d5374617274436f6d204c74642e312b" +
-	"3029060355040b1322536563757265204469676974616c20436572746966696361746520" +
-	"5369676e696e6731293027060355040313205374617274436f6d20436572746966696361" +
-	"74696f6e20417574686f72697479301e170d3037313032343230353431375a170d313731" +
-	"3032343230353431375a30818c310b300906035504061302494c31163014060355040a13" +
-	"0d5374617274436f6d204c74642e312b3029060355040b13225365637572652044696769" +
-	"74616c204365727469666963617465205369676e696e67313830360603550403132f5374" +
-	"617274436f6d20436c6173732031205072696d61727920496e7465726d65646961746520" +
-	"53657276657220434130820122300d06092a864886f70d01010105000382010f00308201" +
-	"0a0282010100b689c6acef09527807ac9263d0f44418188480561f91aee187fa3250b4d3" +
-	"4706f0e6075f700e10f71dc0ce103634855a0f92ac83c6ac58523fba38e8fce7a724e240" +
-	"a60876c0926e9e2a6d4d3f6e61200adb59ded27d63b33e46fefa215118d7cd30a6ed076e" +
-	"3b7087b4f9faebee823c056f92f7a4dc0a301e9373fe07cad75f809d225852ae06da8b87" +
-	"2369b0e42ad8ea83d2bdf371db705a280faf5a387045123f304dcd3baf17e50fcba0a95d" +
-	"48aab16150cb34cd3c5cc30be810c08c9bf0030362feb26c3e720eee1c432ac9480e5739" +
-	"c43121c810c12c87fe5495521f523c31129b7fe7c0a0a559d5e28f3ef0d5a8e1d77031a9" +
-	"c4b3cfaf6d532f06f4a70203010001a38201ad308201a9300f0603551d130101ff040530" +
-	"030101ff300e0603551d0f0101ff040403020106301d0603551d0e04160414eb4234d098" +
-	"b0ab9ff41b6b08f7cc642eef0e2c45301f0603551d230418301680144e0bef1aa4405ba5" +
-	"17698730ca346843d041aef2306606082b06010505070101045a3058302706082b060105" +
-	"05073001861b687474703a2f2f6f6373702e737461727473736c2e636f6d2f6361302d06" +
-	"082b060105050730028621687474703a2f2f7777772e737461727473736c2e636f6d2f73" +
-	"667363612e637274305b0603551d1f045430523027a025a0238621687474703a2f2f7777" +
-	"772e737461727473736c2e636f6d2f73667363612e63726c3027a025a023862168747470" +
-	"3a2f2f63726c2e737461727473736c2e636f6d2f73667363612e63726c3081800603551d" +
-	"20047930773075060b2b0601040181b5370102013066302e06082b060105050702011622" +
-	"687474703a2f2f7777772e737461727473736c2e636f6d2f706f6c6963792e7064663034" +
-	"06082b060105050702011628687474703a2f2f7777772e737461727473736c2e636f6d2f" +
-	"696e7465726d6564696174652e706466300d06092a864886f70d01010505000382020100" +
-	"2109493ea5886ee00b8b48da314d8ff75657a2e1d36257e9b556f38545753be5501f048b" +
-	"e6a05a3ee700ae85d0fbff200364cbad02e1c69172f8a34dd6dee8cc3fa18aa2e37c37a7" +
-	"c64f8f35d6f4d66e067bdd21d9cf56ffcb302249fe8904f385e5aaf1e71fe875904dddf9" +
-	"46f74234f745580c110d84b0c6da5d3ef9019ee7e1da5595be741c7bfc4d144fac7e5547" +
-	"7d7bf4a50d491e95e8f712c1ccff76a62547d0f37535be97b75816ebaa5c786fec5330af" +
-	"ea044dcca902e3f0b60412f630b1113d904e5664d7dc3c435f7339ef4baf87ebf6fe6888" +
-	"4472ead207c669b0c1a18bef1749d761b145485f3b2021e95bb2ccf4d7e931f50b15613b" +
-	"7a94e3ebd9bc7f94ae6ae3626296a8647cb887f399327e92a252bebbf865cfc9f230fc8b" +
-	"c1c2a696d75f89e15c3480f58f47072fb491bfb1a27e5f4b5ad05b9f248605515a690365" +
-	"434971c5e06f94346bf61bd8a9b04c7e53eb8f48dfca33b548fa364a1a53a6330cd089cd" +
-	"4915cd89313c90c072d7654b52358a461144b93d8e2865a63e799e5c084429adb035112e" +
-	"214eb8d2e7103e5d8483b3c3c2e4d2c6fd094b7409ddf1b3d3193e800da20b19f038e7c5" +
-	"c2afe223db61e29d5c6e2089492e236ab262c145b49faf8ba7f1223bf87de290d07a19fb" +
-	"4a4ce3d27d5f4a8303ed27d6239e6b8db459a2d9ef6c8229dd75193c3f4c108defbb7527" +
-	"d2ae83a7a8ce5ba7"
-
-const ocspResponseWithoutCertHex = "308201d40a0100a08201cd308201c906092b0601050507300101048201ba3082" +
-	"01b630819fa2160414884451ff502a695e2d88f421bad90cf2cecbea7c180f3230313330" +
-	"3631383037323434335a30743072304a300906052b0e03021a0500041448b60d38238df8" +
-	"456e4ee5843ea394111802979f0414884451ff502a695e2d88f421bad90cf2cecbea7c02" +
-	"1100f78b13b946fc9635d8ab49de9d2148218000180f3230313330363138303732343433" +
-	"5aa011180f32303133303632323037323434335a300d06092a864886f70d010105050003" +
-	"82010100103e18b3d297a5e7a6c07a4fc52ac46a15c0eba96f3be17f0ffe84de5b8c8e05" +
-	"5a8f577586a849dc4abd6440eb6fedde4622451e2823c1cbf3558b4e8184959c9fe96eff" +
-	"8bc5f95866c58c6d087519faabfdae37e11d9874f1bc0db292208f645dd848185e4dd38b" +
-	"6a8547dfa7b74d514a8470015719064d35476b95bebb03d4d2845c5ca15202d2784878f2" +
-	"0f904c24f09736f044609e9c271381713400e563023d212db422236440c6f377bbf24b2b" +
-	"9e7dec8698e36a8df68b7592ad3489fb2937afb90eb85d2aa96b81c94c25057dbd4759d9" +
-	"20a1a65c7f0b6427a224b3c98edd96b9b61f706099951188b0289555ad30a216fb774651" +
-	"5a35fca2e054dfa8"
-
-// PKIX nonce extension
-var ocspExtensionOID = asn1.ObjectIdentifier{1, 3, 6, 1, 5, 5, 7, 48, 1, 2}
-var ocspExtensionValueHex = "0403000000"
-
-const ocspResponseWithCriticalExtensionHex = "308204fe0a0100a08204f7308204f306092b0601050507300101048204e4308204e03081" +
-	"dba003020100a11b3019311730150603550403130e4f43535020526573706f6e64657218" +
-	"0f32303136303130343137303130305a3081a53081a23049300906052b0e03021a050004" +
-	"14c0fe0278fc99188891b3f212e9c7e1b21ab7bfc004140dfc1df0a9e0f01ce7f2b21317" +
-	"7e6f8d157cd4f60210017f77deb3bcbb235d44ccc7dba62e72a116180f32303130303730" +
-	"373135303130355aa0030a0101180f32303130303730373135303130355aa011180f3230" +
-	"3130303730373138333531375aa1193017301506092b06010505073001020101ff040504" +
-	"03000000300d06092a864886f70d01010b0500038201010031c730ca60a7a0d92d8e4010" +
-	"911b469de95b4d27e89de6537552436237967694f76f701cf6b45c932bd308bca4a8d092" +
-	"5c604ba94796903091d9e6c000178e72c1f0a24a277dd262835af5d17d3f9d7869606c9f" +
-	"e7c8e708a41645699895beee38bfa63bb46296683761c5d1d65439b8ab868dc3017c9eeb" +
-	"b70b82dbf3a31c55b457d48bb9e82b335ed49f445042eaf606b06a3e0639824924c89c63" +
-	"eccddfe85e6694314138b2536f5e15e07085d0f6e26d4b2f8244bab0d70de07283ac6384" +
-	"a0501fc3dea7cf0adfd4c7f34871080900e252ddc403e3f0265f2a704af905d3727504ed" +
-	"28f3214a219d898a022463c78439799ca81c8cbafdbcec34ea937cd6a08202ea308202e6" +
-	"308202e2308201caa003020102020101300d06092a864886f70d01010b05003019311730" +
-	"150603550403130e4f43535020526573706f6e646572301e170d31353031333031353530" +
-	"33335a170d3136303133303135353033335a3019311730150603550403130e4f43535020" +
-	"526573706f6e64657230820122300d06092a864886f70d01010105000382010f00308201" +
-	"0a0282010100e8155f2d3e6f2e8d14c62a788bd462f9f844e7a6977c83ef1099f0f6616e" +
-	"c5265b56f356e62c5400f0b06a2e7945a82752c636df32a895152d6074df1701dc6ccfbc" +
-	"bec75a70bd2b55ae2be7e6cad3b5fd4cd5b7790ab401a436d3f5f346074ffde8a99d5b72" +
-	"3350f0a112076614b12ef79c78991b119453445acf2416ab0046b540db14c9fc0f27b898" +
-	"9ad0f63aa4b8aefc91aa8a72160c36307c60fec78a93d3fddf4259902aa77e7332971c7d" +
-	"285b6a04f648993c6922a3e9da9adf5f81508c3228791843e5d49f24db2f1290bafd97e6" +
-	"55b1049a199f652cd603c4fafa330c390b0da78fbbc67e8fa021cbd74eb96222b12ace31" +
-	"a77dcf920334dc94581b0203010001a3353033300e0603551d0f0101ff04040302078030" +
-	"130603551d25040c300a06082b06010505070309300c0603551d130101ff04023000300d" +
-	"06092a864886f70d01010b05000382010100718012761b5063e18f0dc44644d8e6ab8612" +
-	"31c15fd5357805425d82aec1de85bf6d3e30fce205e3e3b8b795bbe52e40a439286d2288" +
-	"9064f4aeeb150359b9425f1da51b3a5c939018555d13ac42c565a0603786a919328f3267" +
-	"09dce52c22ad958ecb7873b9771d1148b1c4be2efe80ba868919fc9f68b6090c2f33c156" +
-	"d67156e42766a50b5d51e79637b7e58af74c2a951b1e642fa7741fec982cc937de37eff5" +
-	"9e2005d5939bfc031589ca143e6e8ab83f40ee08cc20a6b4a95a318352c28d18528dcaf9" +
-	"66705de17afa19d6e8ae91ddf33179d16ebb6ac2c69cae8373d408ebf8c55308be6c04d9" +
-	"3a25439a94299a65a709756c7a3e568be049d5c38839"
-
-const ocspResponseWithExtensionHex = "308204fb0a0100a08204f4308204f006092b0601050507300101048204e1308204dd3081" +
-	"d8a003020100a11b3019311730150603550403130e4f43535020526573706f6e64657218" +
-	"0f32303136303130343136353930305a3081a230819f3049300906052b0e03021a050004" +
-	"14c0fe0278fc99188891b3f212e9c7e1b21ab7bfc004140dfc1df0a9e0f01ce7f2b21317" +
-	"7e6f8d157cd4f60210017f77deb3bcbb235d44ccc7dba62e72a116180f32303130303730" +
-	"373135303130355aa0030a0101180f32303130303730373135303130355aa011180f3230" +
-	"3130303730373138333531375aa1163014301206092b0601050507300102040504030000" +
-	"00300d06092a864886f70d01010b05000382010100c09a33e0b2324c852421bb83f85ac9" +
-	"9113f5426012bd2d2279a8166e9241d18a33c870894250622ffc7ed0c4601b16d624f90b" +
-	"779265442cdb6868cf40ab304ab4b66e7315ed02cf663b1601d1d4751772b31bc299db23" +
-	"9aebac78ed6797c06ed815a7a8d18d63cfbb609cafb47ec2e89e37db255216eb09307848" +
-	"d01be0a3e943653c78212b96ff524b74c9ec456b17cdfb950cc97645c577b2e09ff41dde" +
-	"b03afb3adaa381cc0f7c1d95663ef22a0f72f2c45613ae8e2b2d1efc96e8463c7d1d8a1d" +
-	"7e3b35df8fe73a301fc3f804b942b2b3afa337ff105fc1462b7b1c1d75eb4566c8665e59" +
-	"f80393b0adbf8004ff6c3327ed34f007cb4a3348a7d55e06e3a08202ea308202e6308202" +
-	"e2308201caa003020102020101300d06092a864886f70d01010b05003019311730150603" +
-	"550403130e4f43535020526573706f6e646572301e170d3135303133303135353033335a" +
-	"170d3136303133303135353033335a3019311730150603550403130e4f43535020526573" +
-	"706f6e64657230820122300d06092a864886f70d01010105000382010f003082010a0282" +
-	"010100e8155f2d3e6f2e8d14c62a788bd462f9f844e7a6977c83ef1099f0f6616ec5265b" +
-	"56f356e62c5400f0b06a2e7945a82752c636df32a895152d6074df1701dc6ccfbcbec75a" +
-	"70bd2b55ae2be7e6cad3b5fd4cd5b7790ab401a436d3f5f346074ffde8a99d5b723350f0" +
-	"a112076614b12ef79c78991b119453445acf2416ab0046b540db14c9fc0f27b8989ad0f6" +
-	"3aa4b8aefc91aa8a72160c36307c60fec78a93d3fddf4259902aa77e7332971c7d285b6a" +
-	"04f648993c6922a3e9da9adf5f81508c3228791843e5d49f24db2f1290bafd97e655b104" +
-	"9a199f652cd603c4fafa330c390b0da78fbbc67e8fa021cbd74eb96222b12ace31a77dcf" +
-	"920334dc94581b0203010001a3353033300e0603551d0f0101ff04040302078030130603" +
-	"551d25040c300a06082b06010505070309300c0603551d130101ff04023000300d06092a" +
-	"864886f70d01010b05000382010100718012761b5063e18f0dc44644d8e6ab861231c15f" +
-	"d5357805425d82aec1de85bf6d3e30fce205e3e3b8b795bbe52e40a439286d22889064f4" +
-	"aeeb150359b9425f1da51b3a5c939018555d13ac42c565a0603786a919328f326709dce5" +
-	"2c22ad958ecb7873b9771d1148b1c4be2efe80ba868919fc9f68b6090c2f33c156d67156" +
-	"e42766a50b5d51e79637b7e58af74c2a951b1e642fa7741fec982cc937de37eff59e2005" +
-	"d5939bfc031589ca143e6e8ab83f40ee08cc20a6b4a95a318352c28d18528dcaf966705d" +
-	"e17afa19d6e8ae91ddf33179d16ebb6ac2c69cae8373d408ebf8c55308be6c04d93a2543" +
-	"9a94299a65a709756c7a3e568be049d5c38839"
-
-const ocspMultiResponseHex = "30820ee60a0100a0820edf30820edb06092b060105050730010104820ecc30820ec83082" +
-	"0839a216041445ac2ecd75f53f1cf6e4c51d3de0047ad0aa7465180f3230313530363032" +
-	"3130303033305a3082080c3065303d300906052b0e03021a05000414f7452a0080601527" +
-	"72e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f0204" +
-	"5456656a8000180f32303135303630323039303230375aa011180f323031353036303331" +
-	"30303033305a3065303d300906052b0e03021a05000414f7452a008060152772e4a135e7" +
-	"6e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f02045456656b80" +
-	"00180f32303135303630323039303230375aa011180f3230313530363033313030303330" +
-	"5a3065303d300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0" +
-	"f1580414edd8f2ee977252853a330b297a18f5c993853b3f02045456656c8000180f3230" +
-	"3135303630323039303230375aa011180f32303135303630333130303033305a3065303d" +
-	"300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f1580414ed" +
-	"d8f2ee977252853a330b297a18f5c993853b3f02045456656d8000180f32303135303630" +
-	"323039303230375aa011180f32303135303630333130303033305a3065303d300906052b" +
-	"0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee9772" +
-	"52853a330b297a18f5c993853b3f02045456656e8000180f323031353036303230393032" +
-	"30375aa011180f32303135303630333130303033305a3065303d300906052b0e03021a05" +
-	"000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b" +
-	"297a18f5c993853b3f02045456656f8000180f32303135303630323039303230375aa011" +
-	"180f32303135303630333130303033305a3065303d300906052b0e03021a05000414f745" +
-	"2a008060152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c9" +
-	"93853b3f0204545665708000180f32303135303630323039303230375aa011180f323031" +
-	"35303630333130303033305a3065303d300906052b0e03021a05000414f7452a00806015" +
-	"2772e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f02" +
-	"04545665718000180f32303135303630323039303230375aa011180f3230313530363033" +
-	"3130303033305a3065303d300906052b0e03021a05000414f7452a008060152772e4a135" +
-	"e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f020454566572" +
-	"8000180f32303135303630323039303230375aa011180f32303135303630333130303033" +
-	"305a3065303d300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52fd" +
-	"e0f1580414edd8f2ee977252853a330b297a18f5c993853b3f0204545665738000180f32" +
-	"303135303630323039303230375aa011180f32303135303630333130303033305a306530" +
-	"3d300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f1580414" +
-	"edd8f2ee977252853a330b297a18f5c993853b3f0204545665748000180f323031353036" +
-	"30323039303230375aa011180f32303135303630333130303033305a3065303d30090605" +
-	"2b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee97" +
-	"7252853a330b297a18f5c993853b3f0204545665758000180f3230313530363032303930" +
-	"3230375aa011180f32303135303630333130303033305a3065303d300906052b0e03021a" +
-	"05000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a33" +
-	"0b297a18f5c993853b3f0204545665768000180f32303135303630323039303230375aa0" +
-	"11180f32303135303630333130303033305a3065303d300906052b0e03021a05000414f7" +
-	"452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5" +
-	"c993853b3f0204545665778000180f32303135303630323039303230375aa011180f3230" +
-	"3135303630333130303033305a3065303d300906052b0e03021a05000414f7452a008060" +
-	"152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f" +
-	"0204545665788000180f32303135303630323039303230375aa011180f32303135303630" +
-	"333130303033305a3065303d300906052b0e03021a05000414f7452a008060152772e4a1" +
-	"35e76e9e52fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f0204545665" +
-	"798000180f32303135303630323039303230375aa011180f323031353036303331303030" +
-	"33305a3065303d300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52" +
-	"fde0f1580414edd8f2ee977252853a330b297a18f5c993853b3f02045456657a8000180f" +
-	"32303135303630323039303230375aa011180f32303135303630333130303033305a3065" +
-	"303d300906052b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f15804" +
-	"14edd8f2ee977252853a330b297a18f5c993853b3f02045456657b8000180f3230313530" +
-	"3630323039303230375aa011180f32303135303630333130303033305a3065303d300906" +
-	"052b0e03021a05000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee" +
-	"977252853a330b297a18f5c993853b3f02045456657c8000180f32303135303630323039" +
-	"303230375aa011180f32303135303630333130303033305a3065303d300906052b0e0302" +
-	"1a05000414f7452a008060152772e4a135e76e9e52fde0f1580414edd8f2ee977252853a" +
-	"330b297a18f5c993853b3f02045456657d8000180f32303135303630323039303230375a" +
-	"a011180f32303135303630333130303033305a300d06092a864886f70d01010505000382" +
-	"01010016b73b92859979f27d15eb018cf069eed39c3d280213565f3026de11ba15bdb94d" +
-	"764cf2d0fdd204ef926c588d7b183483c8a2b1995079c7ed04dcefcc650c1965be4b6832" +
-	"a8839e832f7f60f638425eccdf9bc3a81fbe700fda426ddf4f06c29bee431bbbe81effda" +
-	"a60b7da5b378f199af2f3c8380be7ba6c21c8e27124f8a4d8989926aea19055700848d33" +
-	"799e833512945fd75364edbd2dd18b783c1e96e332266b17979a0b88c35b43f47c87c493" +
-	"19155056ad8dbbae5ff2afad3c0e1c69ed111206ffda49875e8e4efc0926264823bc4423" +
-	"c8a002f34288c4bc22516f98f54fc609943721f590ddd8d24f989457526b599b0eb75cb5" +
-	"a80da1ad93a621a08205733082056f3082056b30820453a0030201020204545638c4300d" +
-	"06092a864886f70d01010b0500308182310b300906035504061302555331183016060355" +
-	"040a130f552e532e20476f7665726e6d656e7431233021060355040b131a446570617274" +
-	"6d656e74206f662074686520547265617375727931223020060355040b13194365727469" +
-	"6669636174696f6e20417574686f7269746965733110300e060355040b13074f43494f20" +
-	"4341301e170d3135303332303131353531335a170d3135303633303034303030305a3081" +
-	"98310b300906035504061302555331183016060355040a130f552e532e20476f7665726e" +
-	"6d656e7431233021060355040b131a4465706172746d656e74206f662074686520547265" +
-	"617375727931223020060355040b131943657274696669636174696f6e20417574686f72" +
-	"69746965733110300e060355040b13074f43494f204341311430120603550403130b4f43" +
-	"5350205369676e657230820122300d06092a864886f70d01010105000382010f00308201" +
-	"0a0282010100c1b6fe1ba1ad50bb98c855811acbd67fe68057f48b8e08d3800e7f2c51b7" +
-	"9e20551934971fd92b9c9e6c49453097927cba83a94c0b2fea7124ba5ac442b38e37dba6" +
-	"7303d4962dd7d92b22a04b0e0e182e9ea67620b1c6ce09ee607c19e0e6e3adae81151db1" +
-	"2bb7f706149349a292e21c1eb28565b6839df055e1a838a772ff34b5a1452618e2c26042" +
-	"705d53f0af4b57aae6163f58216af12f3887813fe44b0321827b3a0c52b0e47d0aab94a2" +
-	"f768ab0ba3901d22f8bb263823090b0e37a7f8856db4b0d165c42f3aa7e94f5f6ce1855e" +
-	"98dc57adea0ae98ad39f67ecdec00b88685566e9e8d69f6cefb6ddced53015d0d3b862bc" +
-	"be21f3d72251eefcec730203010001a38201cf308201cb300e0603551d0f0101ff040403" +
-	"020780306b0603551d2004643062300c060a60864801650302010502300c060a60864801" +
-	"650302010503300c060a60864801650302010504300c060a60864801650302010507300c" +
-	"060a60864801650302010508300c060a6086480165030201030d300c060a608648016503" +
-	"020103113081e506082b060105050701010481d83081d5303006082b0601050507300286" +
-	"24687474703a2f2f706b692e74726561732e676f762f746f63615f65655f6169612e7037" +
-	"633081a006082b060105050730028681936c6461703a2f2f6c6461702e74726561732e67" +
-	"6f762f6f753d4f43494f25323043412c6f753d43657274696669636174696f6e25323041" +
-	"7574686f7269746965732c6f753d4465706172746d656e742532306f6625323074686525" +
-	"323054726561737572792c6f3d552e532e253230476f7665726e6d656e742c633d55533f" +
-	"634143657274696669636174653b62696e61727930130603551d25040c300a06082b0601" +
-	"0505070309300f06092b060105050730010504020500301f0603551d23041830168014a2" +
-	"13a8e5c607546c243d4eb72b27a2a7711ab5af301d0603551d0e0416041451f98046818a" +
-	"e46d953ac90c210ccfaa1a06980c300d06092a864886f70d01010b050003820101003a37" +
-	"0b301d14ffdeb370883639bec5ae6f572dcbddadd672af16ee2a8303316b14e1fbdca8c2" +
-	"8f4bad9c7b1410250e149c14e9830ca6f17370a8d13151205d956e28c141cc0500379596" +
-	"c5b9239fcfa3d2de8f1d4f1a2b1bf2d1851bed1c86012ee8135bdc395cd4496ce69fadd0" +
-	"3b682b90350ca7b4f458190b7a0ab5c33a04cf1347a77d541877a380a4c94988c5658908" +
-	"44fdc22637a72b9fa410333e2caf969477f9fe07f50e3681c204fb3bf073b9da01cd8d91" +
-	"8044c40b1159955af12a3263ab1d34119d7f59bfa6cae88ed058addc4e08250263f8f836" +
-	"2f5bdffd45636fea7474c60a55c535954477b2f286e1b2535f0dd12c162f1b353c370e08" +
-	"be67"
-
-const ocspMultiResponseCertHex = "308207943082067ca003020102020454566573300d06092a864886f70d01010b05003081" +
-	"82310b300906035504061302555331183016060355040a130f552e532e20476f7665726e" +
-	"6d656e7431233021060355040b131a4465706172746d656e74206f662074686520547265" +
-	"617375727931223020060355040b131943657274696669636174696f6e20417574686f72" +
-	"69746965733110300e060355040b13074f43494f204341301e170d313530343130313535" +
-	"3733385a170d3138303431303136323733385a30819d310b300906035504061302555331" +
-	"183016060355040a130f552e532e20476f7665726e6d656e7431233021060355040b131a" +
-	"4465706172746d656e74206f662074686520547265617375727931253023060355040b13" +
-	"1c427572656175206f66207468652046697363616c20536572766963653110300e060355" +
-	"040b130744657669636573311630140603550403130d706b692e74726561732e676f7630" +
-	"820122300d06092a864886f70d01010105000382010f003082010a0282010100c7273623" +
-	"8c49c48bf501515a2490ef6e5ae0c06e0ad2aa9a6bb77f3d0370d846b2571581ebf38fd3" +
-	"1948daad3dec7a4da095f1dcbe9654e65bcf7acdfd4ee802421dad9b90536c721d2bca58" +
-	"8413e6bfd739a72470560bb7d64f9a09284f90ff8af1d5a3c5c84d0f95a00f9c6d988dd0" +
-	"d87f1d0d3344580901c955139f54d09de0acdbd3322b758cb0c58881bf04913243401f44" +
-	"013fd9f6d8348044cc8bb0a71978ad93366b2a4687a5274b2ee07d0fb40225453eb244ed" +
-	"b20152251ac77c59455260ff07eeceb3cb3c60fb8121cf92afd3daa2a4650e1942ccb555" +
-	"de10b3d481feb299838ef05d0fd1810b146753472ae80da65dd34da25ca1f89971f10039" +
-	"0203010001a38203f3308203ef300e0603551d0f0101ff0404030205a030170603551d20" +
-	"0410300e300c060a60864801650302010503301106096086480186f84201010404030206" +
-	"4030130603551d25040c300a06082b060105050703013082010806082b06010505070101" +
-	"0481fb3081f8303006082b060105050730028624687474703a2f2f706b692e7472656173" +
-	"2e676f762f746f63615f65655f6169612e7037633081a006082b06010505073002868193" +
-	"6c6461703a2f2f6c6461702e74726561732e676f762f6f753d4f43494f25323043412c6f" +
-	"753d43657274696669636174696f6e253230417574686f7269746965732c6f753d446570" +
-	"6172746d656e742532306f6625323074686525323054726561737572792c6f3d552e532e" +
-	"253230476f7665726e6d656e742c633d55533f634143657274696669636174653b62696e" +
-	"617279302106082b060105050730018615687474703a2f2f6f6373702e74726561732e67" +
-	"6f76307b0603551d1104743072811c6373612d7465616d4066697363616c2e7472656173" +
-	"7572792e676f768210706b692e74726561737572792e676f768210706b692e64696d632e" +
-	"6468732e676f76820d706b692e74726561732e676f76811f6563622d686f7374696e6740" +
-	"66697363616c2e74726561737572792e676f76308201890603551d1f048201803082017c" +
-	"3027a025a0238621687474703a2f2f706b692e74726561732e676f762f4f43494f5f4341" +
-	"332e63726c3082014fa082014ba0820147a48197308194310b3009060355040613025553" +
-	"31183016060355040a130f552e532e20476f7665726e6d656e7431233021060355040b13" +
-	"1a4465706172746d656e74206f662074686520547265617375727931223020060355040b" +
-	"131943657274696669636174696f6e20417574686f7269746965733110300e060355040b" +
-	"13074f43494f2043413110300e0603550403130743524c313430398681aa6c6461703a2f" +
-	"2f6c6461702e74726561732e676f762f636e3d43524c313430392c6f753d4f43494f2532" +
-	"3043412c6f753d43657274696669636174696f6e253230417574686f7269746965732c6f" +
-	"753d4465706172746d656e742532306f6625323074686525323054726561737572792c6f" +
-	"3d552e532e253230476f7665726e6d656e742c633d55533f636572746966696361746552" +
-	"65766f636174696f6e4c6973743b62696e617279302b0603551d1004243022800f323031" +
-	"35303431303135353733385a810f32303138303431303136323733385a301f0603551d23" +
-	"041830168014a213a8e5c607546c243d4eb72b27a2a7711ab5af301d0603551d0e041604" +
-	"14b0869c12c293914cd460e33ed43e6c5a26e0d68f301906092a864886f67d074100040c" +
-	"300a1b0456382e31030203a8300d06092a864886f70d01010b050003820101004968d182" +
-	"8f9efdc147e747bb5dda15536a42a079b32d3d7f87e619b483aeee70b7e26bda393c6028" +
-	"7c733ecb468fe8b8b11bf809ff76add6b90eb25ad8d3a1052e43ee281e48a3a1ebe7efb5" +
-	"9e2c4a48765dedeb23f5346242145786cc988c762d230d28dd33bf4c2405d80cbb2cb1d6" +
-	"4c8f10ba130d50cb174f6ffb9cfc12808297a2cefba385f4fad170f39b51ebd87c12abf9" +
-	"3c51fc000af90d8aaba78f48923908804a5eb35f617ccf71d201e3708a559e6d16f9f13e" +
-	"074361eb9007e28d86bb4e0bfa13aad0e9ddd9124e84519de60e2fc6040b18d9fd602b02" +
-	"684b4c071c3019fc842197d00c120c41654bcbfbc4a096a1c637b79112b81ce1fa3899f9"
-
-const ocspRequestHex = "3051304f304d304b3049300906052b0e03021a05000414c0fe0278fc99188891b3f212e9" +
-	"c7e1b21ab7bfc004140dfc1df0a9e0f01ce7f2b213177e6f8d157cd4f60210017f77deb3" +
-	"bcbb235d44ccc7dba62e72"
-
-const leafCertHex = "308203c830820331a0030201020210017f77deb3bcbb235d44ccc7dba62e72300d06092a" +
-	"864886f70d01010505003081ba311f301d060355040a1316566572695369676e20547275" +
-	"7374204e6574776f726b31173015060355040b130e566572695369676e2c20496e632e31" +
-	"333031060355040b132a566572695369676e20496e7465726e6174696f6e616c20536572" +
-	"766572204341202d20436c617373203331493047060355040b13407777772e7665726973" +
-	"69676e2e636f6d2f43505320496e636f72702e6279205265662e204c494142494c495459" +
-	"204c54442e286329393720566572695369676e301e170d3132303632313030303030305a" +
-	"170d3133313233313233353935395a3068310b3009060355040613025553311330110603" +
-	"550408130a43616c69666f726e6961311230100603550407130950616c6f20416c746f31" +
-	"173015060355040a130e46616365626f6f6b2c20496e632e311730150603550403140e2a" +
-	"2e66616365626f6f6b2e636f6d30819f300d06092a864886f70d010101050003818d0030" +
-	"818902818100ae94b171e2deccc1693e051063240102e0689ae83c39b6b3e74b97d48d7b" +
-	"23689100b0b496ee62f0e6d356bcf4aa0f50643402f5d1766aa972835a7564723f39bbef" +
-	"5290ded9bcdbf9d3d55dfad23aa03dc604c54d29cf1d4b3bdbd1a809cfae47b44c7eae17" +
-	"c5109bee24a9cf4a8d911bb0fd0415ae4c3f430aa12a557e2ae10203010001a382011e30" +
-	"82011a30090603551d130402300030440603551d20043d303b3039060b6086480186f845" +
-	"01071703302a302806082b06010505070201161c68747470733a2f2f7777772e76657269" +
-	"7369676e2e636f6d2f727061303c0603551d1f043530333031a02fa02d862b687474703a" +
-	"2f2f535652496e746c2d63726c2e766572697369676e2e636f6d2f535652496e746c2e63" +
-	"726c301d0603551d250416301406082b0601050507030106082b06010505070302300b06" +
-	"03551d0f0404030205a0303406082b0601050507010104283026302406082b0601050507" +
-	"30018618687474703a2f2f6f6373702e766572697369676e2e636f6d30270603551d1104" +
-	"20301e820e2a2e66616365626f6f6b2e636f6d820c66616365626f6f6b2e636f6d300d06" +
-	"092a864886f70d0101050500038181005b6c2b75f8ed30aa51aad36aba595e555141951f" +
-	"81a53b447910ac1f76ff78fc2781616b58f3122afc1c87010425e9ed43df1a7ba6498060" +
-	"67e2688af03db58c7df4ee03309a6afc247ccb134dc33e54c6bc1d5133a532a73273b1d7" +
-	"9cadc08e7e1a83116d34523340b0305427a21742827c98916698ee7eaf8c3bdd71700817"
-
-const issuerCertHex = "30820383308202eca003020102021046fcebbab4d02f0f926098233f93078f300d06092a" +
-	"864886f70d0101050500305f310b300906035504061302555331173015060355040a130e" +
-	"566572695369676e2c20496e632e31373035060355040b132e436c617373203320507562" +
-	"6c6963205072696d6172792043657274696669636174696f6e20417574686f7269747930" +
-	"1e170d3937303431373030303030305a170d3136313032343233353935395a3081ba311f" +
-	"301d060355040a1316566572695369676e205472757374204e6574776f726b3117301506" +
-	"0355040b130e566572695369676e2c20496e632e31333031060355040b132a5665726953" +
-	"69676e20496e7465726e6174696f6e616c20536572766572204341202d20436c61737320" +
-	"3331493047060355040b13407777772e766572697369676e2e636f6d2f43505320496e63" +
-	"6f72702e6279205265662e204c494142494c495459204c54442e28632939372056657269" +
-	"5369676e30819f300d06092a864886f70d010101050003818d0030818902818100d88280" +
-	"e8d619027d1f85183925a2652be1bfd405d3bce6363baaf04c6c5bb6e7aa3c734555b2f1" +
-	"bdea9742ed9a340a15d4a95cf54025ddd907c132b2756cc4cabba3fe56277143aa63f530" +
-	"3e9328e5faf1093bf3b74d4e39f75c495ab8c11dd3b28afe70309542cbfe2b518b5a3c3a" +
-	"f9224f90b202a7539c4f34e7ab04b27b6f0203010001a381e33081e0300f0603551d1304" +
-	"0830060101ff02010030440603551d20043d303b3039060b6086480186f8450107010130" +
-	"2a302806082b06010505070201161c68747470733a2f2f7777772e766572697369676e2e" +
-	"636f6d2f43505330340603551d25042d302b06082b0601050507030106082b0601050507" +
-	"030206096086480186f8420401060a6086480186f845010801300b0603551d0f04040302" +
-	"0106301106096086480186f842010104040302010630310603551d1f042a30283026a024" +
-	"a0228620687474703a2f2f63726c2e766572697369676e2e636f6d2f706361332e63726c" +
-	"300d06092a864886f70d010105050003818100408e4997968a73dd8e4def3e61b7caa062" +
-	"adf40e0abb753de26ed82cc7bff4b98c369bcaa2d09c724639f6a682036511c4bcbf2da6" +
-	"f5d93b0ab598fab378b91ef22b4c62d5fdb27a1ddf33fd73f9a5d82d8c2aead1fcb028b6" +
-	"e94948134b838a1b487b24f738de6f4154b8ab576b06dfc7a2d4a9f6f136628088f28b75" +
-	"d68071"
-
-// Key and certificate for the OCSP responder were not taken from the Thawte
-// responder, since CreateResponse requires that we have the private key.
-// Instead, they were generated randomly.
-const responderPrivateKeyHex = "308204a40201000282010100e8155f2d3e6f2e8d14c62a788bd462f9f844e7a6977c83ef" +
-	"1099f0f6616ec5265b56f356e62c5400f0b06a2e7945a82752c636df32a895152d6074df" +
-	"1701dc6ccfbcbec75a70bd2b55ae2be7e6cad3b5fd4cd5b7790ab401a436d3f5f346074f" +
-	"fde8a99d5b723350f0a112076614b12ef79c78991b119453445acf2416ab0046b540db14" +
-	"c9fc0f27b8989ad0f63aa4b8aefc91aa8a72160c36307c60fec78a93d3fddf4259902aa7" +
-	"7e7332971c7d285b6a04f648993c6922a3e9da9adf5f81508c3228791843e5d49f24db2f" +
-	"1290bafd97e655b1049a199f652cd603c4fafa330c390b0da78fbbc67e8fa021cbd74eb9" +
-	"6222b12ace31a77dcf920334dc94581b02030100010282010100bcf0b93d7238bda329a8" +
-	"72e7149f61bcb37c154330ccb3f42a85c9002c2e2bdea039d77d8581cd19bed94078794e" +
-	"56293d601547fc4bf6a2f9002fe5772b92b21b254403b403585e3130cc99ccf08f0ef81a" +
-	"575b38f597ba4660448b54f44bfbb97072b5a2bf043bfeca828cf7741d13698e3f38162b" +
-	"679faa646b82abd9a72c5c7d722c5fc577a76d2c2daac588accad18516d1bbad10b0dfa2" +
-	"05cfe246b59e28608a43942e1b71b0c80498075121de5b900d727c31c42c78cf1db5c0aa" +
-	"5b491e10ea4ed5c0962aaf2ae025dd81fa4ce490d9d6b4a4465411d8e542fc88617e5695" +
-	"1aa4fc8ea166f2b4d0eb89ef17f2b206bd5f1014bf8fe0e71fe62f2cccf102818100f2dc" +
-	"ddf878d553286daad68bac4070a82ffec3dc4666a2750f47879eec913f91836f1d976b60" +
-	"daf9356e078446dafab5bd2e489e5d64f8572ba24a4ba4f3729b5e106c4dd831cc2497a7" +
-	"e6c7507df05cb64aeb1bbc81c1e340d58b5964cf39cff84ea30c29ec5d3f005ee1362698" +
-	"07395037955955655292c3e85f6187fa1f9502818100f4a33c102630840705f8c778a47b" +
-	"87e8da31e68809af981ac5e5999cf1551685d761cdf0d6520361b99aebd5777a940fa64d" +
-	"327c09fa63746fbb3247ec73a86edf115f1fe5c83598db803881ade71c33c6e956118345" +
-	"497b98b5e07bb5be75971465ec78f2f9467e1b74956ca9d4c7c3e314e742a72d8b33889c" +
-	"6c093a466cef0281801d3df0d02124766dd0be98349b19eb36a508c4e679e793ba0a8bef" +
-	"4d786888c1e9947078b1ea28938716677b4ad8c5052af12eb73ac194915264a913709a0b" +
-	"7b9f98d4a18edd781a13d49899f91c20dbd8eb2e61d991ba19b5cdc08893f5cb9d39e5a6" +
-	"0629ea16d426244673b1b3ee72bd30e41fac8395acac40077403de5efd028180050731dd" +
-	"d71b1a2b96c8d538ba90bb6b62c8b1c74c03aae9a9f59d21a7a82b0d572ef06fa9c807bf" +
-	"c373d6b30d809c7871df96510c577421d9860c7383fda0919ece19996b3ca13562159193" +
-	"c0c246471e287f975e8e57034e5136aaf44254e2650def3d51292474c515b1588969112e" +
-	"0a85cc77073e9d64d2c2fc497844284b02818100d71d63eabf416cf677401ebf965f8314" +
-	"120b568a57dd3bd9116c629c40dc0c6948bab3a13cc544c31c7da40e76132ef5dd3f7534" +
-	"45a635930c74326ae3df0edd1bfb1523e3aa259873ac7cf1ac31151ec8f37b528c275622" +
-	"48f99b8bed59fd4da2576aa6ee20d93a684900bf907e80c66d6e2261ae15e55284b4ed9d" +
-	"6bdaa059"
-
-const responderCertHex = "308202e2308201caa003020102020101300d06092a864886f70d01010b05003019311730" +
-	"150603550403130e4f43535020526573706f6e646572301e170d31353031333031353530" +
-	"33335a170d3136303133303135353033335a3019311730150603550403130e4f43535020" +
-	"526573706f6e64657230820122300d06092a864886f70d01010105000382010f00308201" +
-	"0a0282010100e8155f2d3e6f2e8d14c62a788bd462f9f844e7a6977c83ef1099f0f6616e" +
-	"c5265b56f356e62c5400f0b06a2e7945a82752c636df32a895152d6074df1701dc6ccfbc" +
-	"bec75a70bd2b55ae2be7e6cad3b5fd4cd5b7790ab401a436d3f5f346074ffde8a99d5b72" +
-	"3350f0a112076614b12ef79c78991b119453445acf2416ab0046b540db14c9fc0f27b898" +
-	"9ad0f63aa4b8aefc91aa8a72160c36307c60fec78a93d3fddf4259902aa77e7332971c7d" +
-	"285b6a04f648993c6922a3e9da9adf5f81508c3228791843e5d49f24db2f1290bafd97e6" +
-	"55b1049a199f652cd603c4fafa330c390b0da78fbbc67e8fa021cbd74eb96222b12ace31" +
-	"a77dcf920334dc94581b0203010001a3353033300e0603551d0f0101ff04040302078030" +
-	"130603551d25040c300a06082b06010505070309300c0603551d130101ff04023000300d" +
-	"06092a864886f70d01010b05000382010100718012761b5063e18f0dc44644d8e6ab8612" +
-	"31c15fd5357805425d82aec1de85bf6d3e30fce205e3e3b8b795bbe52e40a439286d2288" +
-	"9064f4aeeb150359b9425f1da51b3a5c939018555d13ac42c565a0603786a919328f3267" +
-	"09dce52c22ad958ecb7873b9771d1148b1c4be2efe80ba868919fc9f68b6090c2f33c156" +
-	"d67156e42766a50b5d51e79637b7e58af74c2a951b1e642fa7741fec982cc937de37eff5" +
-	"9e2005d5939bfc031589ca143e6e8ab83f40ee08cc20a6b4a95a318352c28d18528dcaf9" +
-	"66705de17afa19d6e8ae91ddf33179d16ebb6ac2c69cae8373d408ebf8c55308be6c04d9" +
-	"3a25439a94299a65a709756c7a3e568be049d5c38839"
-
-const errorResponseHex = "30030a0101"
diff --git a/vendor/golang.org/x/crypto/openpgp/armor/armor.go b/vendor/golang.org/x/crypto/openpgp/armor/armor.go
deleted file mode 100644
index 592d186..0000000
--- a/vendor/golang.org/x/crypto/openpgp/armor/armor.go
+++ /dev/null
@@ -1,219 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package armor implements OpenPGP ASCII Armor, see RFC 4880. OpenPGP Armor is
-// very similar to PEM except that it has an additional CRC checksum.
-package armor // import "golang.org/x/crypto/openpgp/armor"
-
-import (
-	"bufio"
-	"bytes"
-	"encoding/base64"
-	"golang.org/x/crypto/openpgp/errors"
-	"io"
-)
-
-// A Block represents an OpenPGP armored structure.
-//
-// The encoded form is:
-//    -----BEGIN Type-----
-//    Headers
-//
-//    base64-encoded Bytes
-//    '=' base64 encoded checksum
-//    -----END Type-----
-// where Headers is a possibly empty sequence of Key: Value lines.
-//
-// Since the armored data can be very large, this package presents a streaming
-// interface.
-type Block struct {
-	Type    string            // The type, taken from the preamble (i.e. "PGP SIGNATURE").
-	Header  map[string]string // Optional headers.
-	Body    io.Reader         // A Reader from which the contents can be read
-	lReader lineReader
-	oReader openpgpReader
-}
-
-var ArmorCorrupt error = errors.StructuralError("armor invalid")
-
-const crc24Init = 0xb704ce
-const crc24Poly = 0x1864cfb
-const crc24Mask = 0xffffff
-
-// crc24 calculates the OpenPGP checksum as specified in RFC 4880, section 6.1
-func crc24(crc uint32, d []byte) uint32 {
-	for _, b := range d {
-		crc ^= uint32(b) << 16
-		for i := 0; i < 8; i++ {
-			crc <<= 1
-			if crc&0x1000000 != 0 {
-				crc ^= crc24Poly
-			}
-		}
-	}
-	return crc
-}
-
-var armorStart = []byte("-----BEGIN ")
-var armorEnd = []byte("-----END ")
-var armorEndOfLine = []byte("-----")
-
-// lineReader wraps a line based reader. It watches for the end of an armor
-// block and records the expected CRC value.
-type lineReader struct {
-	in  *bufio.Reader
-	buf []byte
-	eof bool
-	crc uint32
-}
-
-func (l *lineReader) Read(p []byte) (n int, err error) {
-	if l.eof {
-		return 0, io.EOF
-	}
-
-	if len(l.buf) > 0 {
-		n = copy(p, l.buf)
-		l.buf = l.buf[n:]
-		return
-	}
-
-	line, isPrefix, err := l.in.ReadLine()
-	if err != nil {
-		return
-	}
-	if isPrefix {
-		return 0, ArmorCorrupt
-	}
-
-	if len(line) == 5 && line[0] == '=' {
-		// This is the checksum line
-		var expectedBytes [3]byte
-		var m int
-		m, err = base64.StdEncoding.Decode(expectedBytes[0:], line[1:])
-		if m != 3 || err != nil {
-			return
-		}
-		l.crc = uint32(expectedBytes[0])<<16 |
-			uint32(expectedBytes[1])<<8 |
-			uint32(expectedBytes[2])
-
-		line, _, err = l.in.ReadLine()
-		if err != nil && err != io.EOF {
-			return
-		}
-		if !bytes.HasPrefix(line, armorEnd) {
-			return 0, ArmorCorrupt
-		}
-
-		l.eof = true
-		return 0, io.EOF
-	}
-
-	if len(line) > 96 {
-		return 0, ArmorCorrupt
-	}
-
-	n = copy(p, line)
-	bytesToSave := len(line) - n
-	if bytesToSave > 0 {
-		if cap(l.buf) < bytesToSave {
-			l.buf = make([]byte, 0, bytesToSave)
-		}
-		l.buf = l.buf[0:bytesToSave]
-		copy(l.buf, line[n:])
-	}
-
-	return
-}
-
-// openpgpReader passes Read calls to the underlying base64 decoder, but keeps
-// a running CRC of the resulting data and checks the CRC against the value
-// found by the lineReader at EOF.
-type openpgpReader struct {
-	lReader    *lineReader
-	b64Reader  io.Reader
-	currentCRC uint32
-}
-
-func (r *openpgpReader) Read(p []byte) (n int, err error) {
-	n, err = r.b64Reader.Read(p)
-	r.currentCRC = crc24(r.currentCRC, p[:n])
-
-	if err == io.EOF {
-		if r.lReader.crc != uint32(r.currentCRC&crc24Mask) {
-			return 0, ArmorCorrupt
-		}
-	}
-
-	return
-}
-
-// Decode reads a PGP armored block from the given Reader. It will ignore
-// leading garbage. If it doesn't find a block, it will return nil, io.EOF. The
-// given Reader is not usable after calling this function: an arbitrary amount
-// of data may have been read past the end of the block.
-func Decode(in io.Reader) (p *Block, err error) {
-	r := bufio.NewReaderSize(in, 100)
-	var line []byte
-	ignoreNext := false
-
-TryNextBlock:
-	p = nil
-
-	// Skip leading garbage
-	for {
-		ignoreThis := ignoreNext
-		line, ignoreNext, err = r.ReadLine()
-		if err != nil {
-			return
-		}
-		if ignoreNext || ignoreThis {
-			continue
-		}
-		line = bytes.TrimSpace(line)
-		if len(line) > len(armorStart)+len(armorEndOfLine) && bytes.HasPrefix(line, armorStart) {
-			break
-		}
-	}
-
-	p = new(Block)
-	p.Type = string(line[len(armorStart) : len(line)-len(armorEndOfLine)])
-	p.Header = make(map[string]string)
-	nextIsContinuation := false
-	var lastKey string
-
-	// Read headers
-	for {
-		isContinuation := nextIsContinuation
-		line, nextIsContinuation, err = r.ReadLine()
-		if err != nil {
-			p = nil
-			return
-		}
-		if isContinuation {
-			p.Header[lastKey] += string(line)
-			continue
-		}
-		line = bytes.TrimSpace(line)
-		if len(line) == 0 {
-			break
-		}
-
-		i := bytes.Index(line, []byte(": "))
-		if i == -1 {
-			goto TryNextBlock
-		}
-		lastKey = string(line[:i])
-		p.Header[lastKey] = string(line[i+2:])
-	}
-
-	p.lReader.in = r
-	p.oReader.currentCRC = crc24Init
-	p.oReader.lReader = &p.lReader
-	p.oReader.b64Reader = base64.NewDecoder(base64.StdEncoding, &p.lReader)
-	p.Body = &p.oReader
-
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/armor/armor_test.go b/vendor/golang.org/x/crypto/openpgp/armor/armor_test.go
deleted file mode 100644
index 9334e94..0000000
--- a/vendor/golang.org/x/crypto/openpgp/armor/armor_test.go
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package armor
-
-import (
-	"bytes"
-	"hash/adler32"
-	"io/ioutil"
-	"testing"
-)
-
-func TestDecodeEncode(t *testing.T) {
-	buf := bytes.NewBuffer([]byte(armorExample1))
-	result, err := Decode(buf)
-	if err != nil {
-		t.Error(err)
-	}
-	expectedType := "PGP SIGNATURE"
-	if result.Type != expectedType {
-		t.Errorf("result.Type: got:%s want:%s", result.Type, expectedType)
-	}
-	if len(result.Header) != 1 {
-		t.Errorf("len(result.Header): got:%d want:1", len(result.Header))
-	}
-	v, ok := result.Header["Version"]
-	if !ok || v != "GnuPG v1.4.10 (GNU/Linux)" {
-		t.Errorf("result.Header: got:%#v", result.Header)
-	}
-
-	contents, err := ioutil.ReadAll(result.Body)
-	if err != nil {
-		t.Error(err)
-	}
-
-	if adler32.Checksum(contents) != 0x27b144be {
-		t.Errorf("contents: got: %x", contents)
-	}
-
-	buf = bytes.NewBuffer(nil)
-	w, err := Encode(buf, result.Type, result.Header)
-	if err != nil {
-		t.Error(err)
-	}
-	_, err = w.Write(contents)
-	if err != nil {
-		t.Error(err)
-	}
-	w.Close()
-
-	if !bytes.Equal(buf.Bytes(), []byte(armorExample1)) {
-		t.Errorf("got: %s\nwant: %s", string(buf.Bytes()), armorExample1)
-	}
-}
-
-func TestLongHeader(t *testing.T) {
-	buf := bytes.NewBuffer([]byte(armorLongLine))
-	result, err := Decode(buf)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	value, ok := result.Header["Version"]
-	if !ok {
-		t.Errorf("missing Version header")
-	}
-	if value != longValueExpected {
-		t.Errorf("got: %s want: %s", value, longValueExpected)
-	}
-}
-
-const armorExample1 = `-----BEGIN PGP SIGNATURE-----
-Version: GnuPG v1.4.10 (GNU/Linux)
-
-iJwEAAECAAYFAk1Fv/0ACgkQo01+GMIMMbsYTwQAiAw+QAaNfY6WBdplZ/uMAccm
-4g+81QPmTSGHnetSb6WBiY13kVzK4HQiZH8JSkmmroMLuGeJwsRTEL4wbjRyUKEt
-p1xwUZDECs234F1xiG5enc5SGlRtP7foLBz9lOsjx+LEcA4sTl5/2eZR9zyFZqWW
-TxRjs+fJCIFuo71xb1g=
-=/teI
------END PGP SIGNATURE-----`
-
-const armorLongLine = `-----BEGIN PGP SIGNATURE-----
-Version: 0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz
-
-iQEcBAABAgAGBQJMtFESAAoJEKsQXJGvOPsVj40H/1WW6jaMXv4BW+1ueDSMDwM8
-kx1fLOXbVM5/Kn5LStZNt1jWWnpxdz7eq3uiqeCQjmqUoRde3YbB2EMnnwRbAhpp
-cacnAvy9ZQ78OTxUdNW1mhX5bS6q1MTEJnl+DcyigD70HG/yNNQD7sOPMdYQw0TA
-byQBwmLwmTsuZsrYqB68QyLHI+DUugn+kX6Hd2WDB62DKa2suoIUIHQQCd/ofwB3
-WfCYInXQKKOSxu2YOg2Eb4kLNhSMc1i9uKUWAH+sdgJh7NBgdoE4MaNtBFkHXRvv
-okWuf3+xA9ksp1npSY/mDvgHijmjvtpRDe6iUeqfCn8N9u9CBg8geANgaG8+QA4=
-=wfQG
------END PGP SIGNATURE-----`
-
-const longValueExpected = "0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz"
diff --git a/vendor/golang.org/x/crypto/openpgp/armor/encode.go b/vendor/golang.org/x/crypto/openpgp/armor/encode.go
deleted file mode 100644
index 6f07582..0000000
--- a/vendor/golang.org/x/crypto/openpgp/armor/encode.go
+++ /dev/null
@@ -1,160 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package armor
-
-import (
-	"encoding/base64"
-	"io"
-)
-
-var armorHeaderSep = []byte(": ")
-var blockEnd = []byte("\n=")
-var newline = []byte("\n")
-var armorEndOfLineOut = []byte("-----\n")
-
-// writeSlices writes its arguments to the given Writer.
-func writeSlices(out io.Writer, slices ...[]byte) (err error) {
-	for _, s := range slices {
-		_, err = out.Write(s)
-		if err != nil {
-			return err
-		}
-	}
-	return
-}
-
-// lineBreaker breaks data across several lines, all of the same byte length
-// (except possibly the last). Lines are broken with a single '\n'.
-type lineBreaker struct {
-	lineLength  int
-	line        []byte
-	used        int
-	out         io.Writer
-	haveWritten bool
-}
-
-func newLineBreaker(out io.Writer, lineLength int) *lineBreaker {
-	return &lineBreaker{
-		lineLength: lineLength,
-		line:       make([]byte, lineLength),
-		used:       0,
-		out:        out,
-	}
-}
-
-func (l *lineBreaker) Write(b []byte) (n int, err error) {
-	n = len(b)
-
-	if n == 0 {
-		return
-	}
-
-	if l.used == 0 && l.haveWritten {
-		_, err = l.out.Write([]byte{'\n'})
-		if err != nil {
-			return
-		}
-	}
-
-	if l.used+len(b) < l.lineLength {
-		l.used += copy(l.line[l.used:], b)
-		return
-	}
-
-	l.haveWritten = true
-	_, err = l.out.Write(l.line[0:l.used])
-	if err != nil {
-		return
-	}
-	excess := l.lineLength - l.used
-	l.used = 0
-
-	_, err = l.out.Write(b[0:excess])
-	if err != nil {
-		return
-	}
-
-	_, err = l.Write(b[excess:])
-	return
-}
-
-func (l *lineBreaker) Close() (err error) {
-	if l.used > 0 {
-		_, err = l.out.Write(l.line[0:l.used])
-		if err != nil {
-			return
-		}
-	}
-
-	return
-}
-
-// encoding keeps track of a running CRC24 over the data which has been written
-// to it and outputs a OpenPGP checksum when closed, followed by an armor
-// trailer.
-//
-// It's built into a stack of io.Writers:
-//    encoding -> base64 encoder -> lineBreaker -> out
-type encoding struct {
-	out       io.Writer
-	breaker   *lineBreaker
-	b64       io.WriteCloser
-	crc       uint32
-	blockType []byte
-}
-
-func (e *encoding) Write(data []byte) (n int, err error) {
-	e.crc = crc24(e.crc, data)
-	return e.b64.Write(data)
-}
-
-func (e *encoding) Close() (err error) {
-	err = e.b64.Close()
-	if err != nil {
-		return
-	}
-	e.breaker.Close()
-
-	var checksumBytes [3]byte
-	checksumBytes[0] = byte(e.crc >> 16)
-	checksumBytes[1] = byte(e.crc >> 8)
-	checksumBytes[2] = byte(e.crc)
-
-	var b64ChecksumBytes [4]byte
-	base64.StdEncoding.Encode(b64ChecksumBytes[:], checksumBytes[:])
-
-	return writeSlices(e.out, blockEnd, b64ChecksumBytes[:], newline, armorEnd, e.blockType, armorEndOfLine)
-}
-
-// Encode returns a WriteCloser which will encode the data written to it in
-// OpenPGP armor.
-func Encode(out io.Writer, blockType string, headers map[string]string) (w io.WriteCloser, err error) {
-	bType := []byte(blockType)
-	err = writeSlices(out, armorStart, bType, armorEndOfLineOut)
-	if err != nil {
-		return
-	}
-
-	for k, v := range headers {
-		err = writeSlices(out, []byte(k), armorHeaderSep, []byte(v), newline)
-		if err != nil {
-			return
-		}
-	}
-
-	_, err = out.Write(newline)
-	if err != nil {
-		return
-	}
-
-	e := &encoding{
-		out:       out,
-		breaker:   newLineBreaker(out, 64),
-		crc:       crc24Init,
-		blockType: bType,
-	}
-	e.b64 = base64.NewEncoder(base64.StdEncoding, e.breaker)
-	return e, nil
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/canonical_text.go b/vendor/golang.org/x/crypto/openpgp/canonical_text.go
deleted file mode 100644
index e601e38..0000000
--- a/vendor/golang.org/x/crypto/openpgp/canonical_text.go
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import "hash"
-
-// NewCanonicalTextHash reformats text written to it into the canonical
-// form and then applies the hash h.  See RFC 4880, section 5.2.1.
-func NewCanonicalTextHash(h hash.Hash) hash.Hash {
-	return &canonicalTextHash{h, 0}
-}
-
-type canonicalTextHash struct {
-	h hash.Hash
-	s int
-}
-
-var newline = []byte{'\r', '\n'}
-
-func (cth *canonicalTextHash) Write(buf []byte) (int, error) {
-	start := 0
-
-	for i, c := range buf {
-		switch cth.s {
-		case 0:
-			if c == '\r' {
-				cth.s = 1
-			} else if c == '\n' {
-				cth.h.Write(buf[start:i])
-				cth.h.Write(newline)
-				start = i + 1
-			}
-		case 1:
-			cth.s = 0
-		}
-	}
-
-	cth.h.Write(buf[start:])
-	return len(buf), nil
-}
-
-func (cth *canonicalTextHash) Sum(in []byte) []byte {
-	return cth.h.Sum(in)
-}
-
-func (cth *canonicalTextHash) Reset() {
-	cth.h.Reset()
-	cth.s = 0
-}
-
-func (cth *canonicalTextHash) Size() int {
-	return cth.h.Size()
-}
-
-func (cth *canonicalTextHash) BlockSize() int {
-	return cth.h.BlockSize()
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/canonical_text_test.go b/vendor/golang.org/x/crypto/openpgp/canonical_text_test.go
deleted file mode 100644
index 8f3ba2a..0000000
--- a/vendor/golang.org/x/crypto/openpgp/canonical_text_test.go
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import (
-	"bytes"
-	"testing"
-)
-
-type recordingHash struct {
-	buf *bytes.Buffer
-}
-
-func (r recordingHash) Write(b []byte) (n int, err error) {
-	return r.buf.Write(b)
-}
-
-func (r recordingHash) Sum(in []byte) []byte {
-	return append(in, r.buf.Bytes()...)
-}
-
-func (r recordingHash) Reset() {
-	panic("shouldn't be called")
-}
-
-func (r recordingHash) Size() int {
-	panic("shouldn't be called")
-}
-
-func (r recordingHash) BlockSize() int {
-	panic("shouldn't be called")
-}
-
-func testCanonicalText(t *testing.T, input, expected string) {
-	r := recordingHash{bytes.NewBuffer(nil)}
-	c := NewCanonicalTextHash(r)
-	c.Write([]byte(input))
-	result := c.Sum(nil)
-	if expected != string(result) {
-		t.Errorf("input: %x got: %x want: %x", input, result, expected)
-	}
-}
-
-func TestCanonicalText(t *testing.T) {
-	testCanonicalText(t, "foo\n", "foo\r\n")
-	testCanonicalText(t, "foo", "foo")
-	testCanonicalText(t, "foo\r\n", "foo\r\n")
-	testCanonicalText(t, "foo\r\nbar", "foo\r\nbar")
-	testCanonicalText(t, "foo\r\nbar\n\n", "foo\r\nbar\r\n\r\n")
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign.go b/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign.go
deleted file mode 100644
index def4cab..0000000
--- a/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign.go
+++ /dev/null
@@ -1,376 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package clearsign generates and processes OpenPGP, clear-signed data. See
-// RFC 4880, section 7.
-//
-// Clearsigned messages are cryptographically signed, but the contents of the
-// message are kept in plaintext so that it can be read without special tools.
-package clearsign // import "golang.org/x/crypto/openpgp/clearsign"
-
-import (
-	"bufio"
-	"bytes"
-	"crypto"
-	"hash"
-	"io"
-	"net/textproto"
-	"strconv"
-
-	"golang.org/x/crypto/openpgp/armor"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/packet"
-)
-
-// A Block represents a clearsigned message. A signature on a Block can
-// be checked by passing Bytes into openpgp.CheckDetachedSignature.
-type Block struct {
-	Headers          textproto.MIMEHeader // Optional message headers
-	Plaintext        []byte               // The original message text
-	Bytes            []byte               // The signed message
-	ArmoredSignature *armor.Block         // The signature block
-}
-
-// start is the marker which denotes the beginning of a clearsigned message.
-var start = []byte("\n-----BEGIN PGP SIGNED MESSAGE-----")
-
-// dashEscape is prefixed to any lines that begin with a hyphen so that they
-// can't be confused with endText.
-var dashEscape = []byte("- ")
-
-// endText is a marker which denotes the end of the message and the start of
-// an armored signature.
-var endText = []byte("-----BEGIN PGP SIGNATURE-----")
-
-// end is a marker which denotes the end of the armored signature.
-var end = []byte("\n-----END PGP SIGNATURE-----")
-
-var crlf = []byte("\r\n")
-var lf = byte('\n')
-
-// getLine returns the first \r\n or \n delineated line from the given byte
-// array. The line does not include the \r\n or \n. The remainder of the byte
-// array (also not including the new line bytes) is also returned and this will
-// always be smaller than the original argument.
-func getLine(data []byte) (line, rest []byte) {
-	i := bytes.Index(data, []byte{'\n'})
-	var j int
-	if i < 0 {
-		i = len(data)
-		j = i
-	} else {
-		j = i + 1
-		if i > 0 && data[i-1] == '\r' {
-			i--
-		}
-	}
-	return data[0:i], data[j:]
-}
-
-// Decode finds the first clearsigned message in data and returns it, as well
-// as the suffix of data which remains after the message.
-func Decode(data []byte) (b *Block, rest []byte) {
-	// start begins with a newline. However, at the very beginning of
-	// the byte array, we'll accept the start string without it.
-	rest = data
-	if bytes.HasPrefix(data, start[1:]) {
-		rest = rest[len(start)-1:]
-	} else if i := bytes.Index(data, start); i >= 0 {
-		rest = rest[i+len(start):]
-	} else {
-		return nil, data
-	}
-
-	// Consume the start line.
-	_, rest = getLine(rest)
-
-	var line []byte
-	b = &Block{
-		Headers: make(textproto.MIMEHeader),
-	}
-
-	// Next come a series of header lines.
-	for {
-		// This loop terminates because getLine's second result is
-		// always smaller than its argument.
-		if len(rest) == 0 {
-			return nil, data
-		}
-		// An empty line marks the end of the headers.
-		if line, rest = getLine(rest); len(line) == 0 {
-			break
-		}
-
-		i := bytes.Index(line, []byte{':'})
-		if i == -1 {
-			return nil, data
-		}
-
-		key, val := line[0:i], line[i+1:]
-		key = bytes.TrimSpace(key)
-		val = bytes.TrimSpace(val)
-		b.Headers.Add(string(key), string(val))
-	}
-
-	firstLine := true
-	for {
-		start := rest
-
-		line, rest = getLine(rest)
-		if len(line) == 0 && len(rest) == 0 {
-			// No armored data was found, so this isn't a complete message.
-			return nil, data
-		}
-		if bytes.Equal(line, endText) {
-			// Back up to the start of the line because armor expects to see the
-			// header line.
-			rest = start
-			break
-		}
-
-		// The final CRLF isn't included in the hash so we don't write it until
-		// we've seen the next line.
-		if firstLine {
-			firstLine = false
-		} else {
-			b.Bytes = append(b.Bytes, crlf...)
-		}
-
-		if bytes.HasPrefix(line, dashEscape) {
-			line = line[2:]
-		}
-		line = bytes.TrimRight(line, " \t")
-		b.Bytes = append(b.Bytes, line...)
-
-		b.Plaintext = append(b.Plaintext, line...)
-		b.Plaintext = append(b.Plaintext, lf)
-	}
-
-	// We want to find the extent of the armored data (including any newlines at
-	// the end).
-	i := bytes.Index(rest, end)
-	if i == -1 {
-		return nil, data
-	}
-	i += len(end)
-	for i < len(rest) && (rest[i] == '\r' || rest[i] == '\n') {
-		i++
-	}
-	armored := rest[:i]
-	rest = rest[i:]
-
-	var err error
-	b.ArmoredSignature, err = armor.Decode(bytes.NewBuffer(armored))
-	if err != nil {
-		return nil, data
-	}
-
-	return b, rest
-}
-
-// A dashEscaper is an io.WriteCloser which processes the body of a clear-signed
-// message. The clear-signed message is written to buffered and a hash, suitable
-// for signing, is maintained in h.
-//
-// When closed, an armored signature is created and written to complete the
-// message.
-type dashEscaper struct {
-	buffered *bufio.Writer
-	h        hash.Hash
-	hashType crypto.Hash
-
-	atBeginningOfLine bool
-	isFirstLine       bool
-
-	whitespace []byte
-	byteBuf    []byte // a one byte buffer to save allocations
-
-	privateKey *packet.PrivateKey
-	config     *packet.Config
-}
-
-func (d *dashEscaper) Write(data []byte) (n int, err error) {
-	for _, b := range data {
-		d.byteBuf[0] = b
-
-		if d.atBeginningOfLine {
-			// The final CRLF isn't included in the hash so we have to wait
-			// until this point (the start of the next line) before writing it.
-			if !d.isFirstLine {
-				d.h.Write(crlf)
-			}
-			d.isFirstLine = false
-		}
-
-		// Any whitespace at the end of the line has to be removed so we
-		// buffer it until we find out whether there's more on this line.
-		if b == ' ' || b == '\t' || b == '\r' {
-			d.whitespace = append(d.whitespace, b)
-			d.atBeginningOfLine = false
-			continue
-		}
-
-		if d.atBeginningOfLine {
-			// At the beginning of a line, hyphens have to be escaped.
-			if b == '-' {
-				// The signature isn't calculated over the dash-escaped text so
-				// the escape is only written to buffered.
-				if _, err = d.buffered.Write(dashEscape); err != nil {
-					return
-				}
-				d.h.Write(d.byteBuf)
-				d.atBeginningOfLine = false
-			} else if b == '\n' {
-				// Nothing to do because we delay writing CRLF to the hash.
-			} else {
-				d.h.Write(d.byteBuf)
-				d.atBeginningOfLine = false
-			}
-			if err = d.buffered.WriteByte(b); err != nil {
-				return
-			}
-		} else {
-			if b == '\n' {
-				// We got a raw \n. Drop any trailing whitespace and write a
-				// CRLF.
-				d.whitespace = d.whitespace[:0]
-				// We delay writing CRLF to the hash until the start of the
-				// next line.
-				if err = d.buffered.WriteByte(b); err != nil {
-					return
-				}
-				d.atBeginningOfLine = true
-			} else {
-				// Any buffered whitespace wasn't at the end of the line so
-				// we need to write it out.
-				if len(d.whitespace) > 0 {
-					d.h.Write(d.whitespace)
-					if _, err = d.buffered.Write(d.whitespace); err != nil {
-						return
-					}
-					d.whitespace = d.whitespace[:0]
-				}
-				d.h.Write(d.byteBuf)
-				if err = d.buffered.WriteByte(b); err != nil {
-					return
-				}
-			}
-		}
-	}
-
-	n = len(data)
-	return
-}
-
-func (d *dashEscaper) Close() (err error) {
-	if !d.atBeginningOfLine {
-		if err = d.buffered.WriteByte(lf); err != nil {
-			return
-		}
-	}
-	sig := new(packet.Signature)
-	sig.SigType = packet.SigTypeText
-	sig.PubKeyAlgo = d.privateKey.PubKeyAlgo
-	sig.Hash = d.hashType
-	sig.CreationTime = d.config.Now()
-	sig.IssuerKeyId = &d.privateKey.KeyId
-
-	if err = sig.Sign(d.h, d.privateKey, d.config); err != nil {
-		return
-	}
-
-	out, err := armor.Encode(d.buffered, "PGP SIGNATURE", nil)
-	if err != nil {
-		return
-	}
-
-	if err = sig.Serialize(out); err != nil {
-		return
-	}
-	if err = out.Close(); err != nil {
-		return
-	}
-	if err = d.buffered.Flush(); err != nil {
-		return
-	}
-	return
-}
-
-// Encode returns a WriteCloser which will clear-sign a message with privateKey
-// and write it to w. If config is nil, sensible defaults are used.
-func Encode(w io.Writer, privateKey *packet.PrivateKey, config *packet.Config) (plaintext io.WriteCloser, err error) {
-	if privateKey.Encrypted {
-		return nil, errors.InvalidArgumentError("signing key is encrypted")
-	}
-
-	hashType := config.Hash()
-	name := nameOfHash(hashType)
-	if len(name) == 0 {
-		return nil, errors.UnsupportedError("unknown hash type: " + strconv.Itoa(int(hashType)))
-	}
-
-	if !hashType.Available() {
-		return nil, errors.UnsupportedError("unsupported hash type: " + strconv.Itoa(int(hashType)))
-	}
-	h := hashType.New()
-
-	buffered := bufio.NewWriter(w)
-	// start has a \n at the beginning that we don't want here.
-	if _, err = buffered.Write(start[1:]); err != nil {
-		return
-	}
-	if err = buffered.WriteByte(lf); err != nil {
-		return
-	}
-	if _, err = buffered.WriteString("Hash: "); err != nil {
-		return
-	}
-	if _, err = buffered.WriteString(name); err != nil {
-		return
-	}
-	if err = buffered.WriteByte(lf); err != nil {
-		return
-	}
-	if err = buffered.WriteByte(lf); err != nil {
-		return
-	}
-
-	plaintext = &dashEscaper{
-		buffered: buffered,
-		h:        h,
-		hashType: hashType,
-
-		atBeginningOfLine: true,
-		isFirstLine:       true,
-
-		byteBuf: make([]byte, 1),
-
-		privateKey: privateKey,
-		config:     config,
-	}
-
-	return
-}
-
-// nameOfHash returns the OpenPGP name for the given hash, or the empty string
-// if the name isn't known. See RFC 4880, section 9.4.
-func nameOfHash(h crypto.Hash) string {
-	switch h {
-	case crypto.MD5:
-		return "MD5"
-	case crypto.SHA1:
-		return "SHA1"
-	case crypto.RIPEMD160:
-		return "RIPEMD160"
-	case crypto.SHA224:
-		return "SHA224"
-	case crypto.SHA256:
-		return "SHA256"
-	case crypto.SHA384:
-		return "SHA384"
-	case crypto.SHA512:
-		return "SHA512"
-	}
-	return ""
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign_test.go b/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign_test.go
deleted file mode 100644
index 2c09480..0000000
--- a/vendor/golang.org/x/crypto/openpgp/clearsign/clearsign_test.go
+++ /dev/null
@@ -1,210 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package clearsign
-
-import (
-	"bytes"
-	"golang.org/x/crypto/openpgp"
-	"testing"
-)
-
-func testParse(t *testing.T, input []byte, expected, expectedPlaintext string) {
-	b, rest := Decode(input)
-	if b == nil {
-		t.Fatal("failed to decode clearsign message")
-	}
-	if !bytes.Equal(rest, []byte("trailing")) {
-		t.Errorf("unexpected remaining bytes returned: %s", string(rest))
-	}
-	if b.ArmoredSignature.Type != "PGP SIGNATURE" {
-		t.Errorf("bad armor type, got:%s, want:PGP SIGNATURE", b.ArmoredSignature.Type)
-	}
-	if !bytes.Equal(b.Bytes, []byte(expected)) {
-		t.Errorf("bad body, got:%x want:%x", b.Bytes, expected)
-	}
-
-	if !bytes.Equal(b.Plaintext, []byte(expectedPlaintext)) {
-		t.Errorf("bad plaintext, got:%x want:%x", b.Plaintext, expectedPlaintext)
-	}
-
-	keyring, err := openpgp.ReadArmoredKeyRing(bytes.NewBufferString(signingKey))
-	if err != nil {
-		t.Errorf("failed to parse public key: %s", err)
-	}
-
-	if _, err := openpgp.CheckDetachedSignature(keyring, bytes.NewBuffer(b.Bytes), b.ArmoredSignature.Body); err != nil {
-		t.Errorf("failed to check signature: %s", err)
-	}
-}
-
-func TestParse(t *testing.T) {
-	testParse(t, clearsignInput, "Hello world\r\nline 2", "Hello world\nline 2\n")
-	testParse(t, clearsignInput2, "\r\n\r\n(This message has a couple of blank lines at the start and end.)\r\n\r\n", "\n\n(This message has a couple of blank lines at the start and end.)\n\n\n")
-}
-
-func TestParseInvalid(t *testing.T) {
-	if b, _ := Decode(clearsignInput3); b != nil {
-		t.Fatal("decoded a bad clearsigned message without any error")
-	}
-}
-
-func TestParseWithNoNewlineAtEnd(t *testing.T) {
-	input := clearsignInput
-	input = input[:len(input)-len("trailing")-1]
-	b, rest := Decode(input)
-	if b == nil {
-		t.Fatal("failed to decode clearsign message")
-	}
-	if len(rest) > 0 {
-		t.Errorf("unexpected remaining bytes returned: %s", string(rest))
-	}
-}
-
-var signingTests = []struct {
-	in, signed, plaintext string
-}{
-	{"", "", ""},
-	{"a", "a", "a\n"},
-	{"a\n", "a", "a\n"},
-	{"-a\n", "-a", "-a\n"},
-	{"--a\nb", "--a\r\nb", "--a\nb\n"},
-	// leading whitespace
-	{" a\n", " a", " a\n"},
-	{"  a\n", "  a", "  a\n"},
-	// trailing whitespace (should be stripped)
-	{"a \n", "a", "a\n"},
-	{"a ", "a", "a\n"},
-	// whitespace-only lines (should be stripped)
-	{"  \n", "", "\n"},
-	{"  ", "", "\n"},
-	{"a\n  \n  \nb\n", "a\r\n\r\n\r\nb", "a\n\n\nb\n"},
-}
-
-func TestSigning(t *testing.T) {
-	keyring, err := openpgp.ReadArmoredKeyRing(bytes.NewBufferString(signingKey))
-	if err != nil {
-		t.Errorf("failed to parse public key: %s", err)
-	}
-
-	for i, test := range signingTests {
-		var buf bytes.Buffer
-
-		plaintext, err := Encode(&buf, keyring[0].PrivateKey, nil)
-		if err != nil {
-			t.Errorf("#%d: error from Encode: %s", i, err)
-			continue
-		}
-		if _, err := plaintext.Write([]byte(test.in)); err != nil {
-			t.Errorf("#%d: error from Write: %s", i, err)
-			continue
-		}
-		if err := plaintext.Close(); err != nil {
-			t.Fatalf("#%d: error from Close: %s", i, err)
-			continue
-		}
-
-		b, _ := Decode(buf.Bytes())
-		if b == nil {
-			t.Errorf("#%d: failed to decode clearsign message", i)
-			continue
-		}
-		if !bytes.Equal(b.Bytes, []byte(test.signed)) {
-			t.Errorf("#%d: bad result, got:%x, want:%x", i, b.Bytes, test.signed)
-			continue
-		}
-		if !bytes.Equal(b.Plaintext, []byte(test.plaintext)) {
-			t.Errorf("#%d: bad result, got:%x, want:%x", i, b.Plaintext, test.plaintext)
-			continue
-		}
-
-		if _, err := openpgp.CheckDetachedSignature(keyring, bytes.NewBuffer(b.Bytes), b.ArmoredSignature.Body); err != nil {
-			t.Errorf("#%d: failed to check signature: %s", i, err)
-		}
-	}
-}
-
-var clearsignInput = []byte(`
-;lasjlkfdsa
-
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
-Hello world
-line 2
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v1.4.10 (GNU/Linux)
-
-iJwEAQECAAYFAk8kMuEACgkQO9o98PRieSpMsAQAhmY/vwmNpflrPgmfWsYhk5O8
-pjnBUzZwqTDoDeINjZEoPDSpQAHGhjFjgaDx/Gj4fAl0dM4D0wuUEBb6QOrwflog
-2A2k9kfSOMOtk0IH/H5VuFN1Mie9L/erYXjTQIptv9t9J7NoRBMU0QOOaFU0JaO9
-MyTpno24AjIAGb+mH1U=
-=hIJ6
------END PGP SIGNATURE-----
-trailing`)
-
-var clearsignInput2 = []byte(`
-asdlfkjasdlkfjsadf
-
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA256
-
-
-
-(This message has a couple of blank lines at the start and end.)
-
-
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v1.4.11 (GNU/Linux)
-
-iJwEAQEIAAYFAlPpSREACgkQO9o98PRieSpZTAP+M8QUoCt/7Rf3YbXPcdzIL32v
-pt1I+cMNeopzfLy0u4ioEFi8s5VkwpL1AFmirvgViCwlf82inoRxzZRiW05JQ5LI
-ESEzeCoy2LIdRCQ2hcrG8pIUPzUO4TqO5D/dMbdHwNH4h5nNmGJUAEG6FpURlPm+
-qZg6BaTvOxepqOxnhVU=
-=e+C6
------END PGP SIGNATURE-----
-
-trailing`)
-
-var clearsignInput3 = []byte(`
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA256
-
-(This message was truncated.)
-`)
-
-var signingKey = `-----BEGIN PGP PRIVATE KEY BLOCK-----
-Version: GnuPG v1.4.10 (GNU/Linux)
-
-lQHYBE2rFNoBBADFwqWQIW/DSqcB4yCQqnAFTJ27qS5AnB46ccAdw3u4Greeu3Bp
-idpoHdjULy7zSKlwR1EA873dO/k/e11Ml3dlAFUinWeejWaK2ugFP6JjiieSsrKn
-vWNicdCS4HTWn0X4sjl0ZiAygw6GNhqEQ3cpLeL0g8E9hnYzJKQ0LWJa0QARAQAB
-AAP/TB81EIo2VYNmTq0pK1ZXwUpxCrvAAIG3hwKjEzHcbQznsjNvPUihZ+NZQ6+X
-0HCfPAdPkGDCLCb6NavcSW+iNnLTrdDnSI6+3BbIONqWWdRDYJhqZCkqmG6zqSfL
-IdkJgCw94taUg5BWP/AAeQrhzjChvpMQTVKQL5mnuZbUCeMCAN5qrYMP2S9iKdnk
-VANIFj7656ARKt/nf4CBzxcpHTyB8+d2CtPDKCmlJP6vL8t58Jmih+kHJMvC0dzn
-gr5f5+sCAOOe5gt9e0am7AvQWhdbHVfJU0TQJx+m2OiCJAqGTB1nvtBLHdJnfdC9
-TnXXQ6ZXibqLyBies/xeY2sCKL5qtTMCAKnX9+9d/5yQxRyrQUHt1NYhaXZnJbHx
-q4ytu0eWz+5i68IYUSK69jJ1NWPM0T6SkqpB3KCAIv68VFm9PxqG1KmhSrQIVGVz
-dCBLZXmIuAQTAQIAIgUCTasU2gIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AA
-CgkQO9o98PRieSoLhgQAkLEZex02Qt7vGhZzMwuN0R22w3VwyYyjBx+fM3JFETy1
-ut4xcLJoJfIaF5ZS38UplgakHG0FQ+b49i8dMij0aZmDqGxrew1m4kBfjXw9B/v+
-eIqpODryb6cOSwyQFH0lQkXC040pjq9YqDsO5w0WYNXYKDnzRV0p4H1pweo2VDid
-AdgETasU2gEEAN46UPeWRqKHvA99arOxee38fBt2CI08iiWyI8T3J6ivtFGixSqV
-bRcPxYO/qLpVe5l84Nb3X71GfVXlc9hyv7CD6tcowL59hg1E/DC5ydI8K8iEpUmK
-/UnHdIY5h8/kqgGxkY/T/hgp5fRQgW1ZoZxLajVlMRZ8W4tFtT0DeA+JABEBAAEA
-A/0bE1jaaZKj6ndqcw86jd+QtD1SF+Cf21CWRNeLKnUds4FRRvclzTyUMuWPkUeX
-TaNNsUOFqBsf6QQ2oHUBBK4VCHffHCW4ZEX2cd6umz7mpHW6XzN4DECEzOVksXtc
-lUC1j4UB91DC/RNQqwX1IV2QLSwssVotPMPqhOi0ZLNY7wIA3n7DWKInxYZZ4K+6
-rQ+POsz6brEoRHwr8x6XlHenq1Oki855pSa1yXIARoTrSJkBtn5oI+f8AzrnN0BN
-oyeQAwIA/7E++3HDi5aweWrViiul9cd3rcsS0dEnksPhvS0ozCJiHsq/6GFmy7J8
-QSHZPteedBnZyNp5jR+H7cIfVN3KgwH/Skq4PsuPhDq5TKK6i8Pc1WW8MA6DXTdU
-nLkX7RGmMwjC0DBf7KWAlPjFaONAX3a8ndnz//fy1q7u2l9AZwrj1qa1iJ8EGAEC
-AAkFAk2rFNoCGwwACgkQO9o98PRieSo2/QP/WTzr4ioINVsvN1akKuekmEMI3LAp
-BfHwatufxxP1U+3Si/6YIk7kuPB9Hs+pRqCXzbvPRrI8NHZBmc8qIGthishdCYad
-AHcVnXjtxrULkQFGbGvhKURLvS9WnzD/m1K2zzwxzkPTzT9/Yf06O6Mal5AdugPL
-VrM0m72/jnpKo04=
-=zNCn
------END PGP PRIVATE KEY BLOCK-----
-`
diff --git a/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal.go b/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal.go
deleted file mode 100644
index 73f4fe3..0000000
--- a/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal.go
+++ /dev/null
@@ -1,122 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package elgamal implements ElGamal encryption, suitable for OpenPGP,
-// as specified in "A Public-Key Cryptosystem and a Signature Scheme Based on
-// Discrete Logarithms," IEEE Transactions on Information Theory, v. IT-31,
-// n. 4, 1985, pp. 469-472.
-//
-// This form of ElGamal embeds PKCS#1 v1.5 padding, which may make it
-// unsuitable for other protocols. RSA should be used in preference in any
-// case.
-package elgamal // import "golang.org/x/crypto/openpgp/elgamal"
-
-import (
-	"crypto/rand"
-	"crypto/subtle"
-	"errors"
-	"io"
-	"math/big"
-)
-
-// PublicKey represents an ElGamal public key.
-type PublicKey struct {
-	G, P, Y *big.Int
-}
-
-// PrivateKey represents an ElGamal private key.
-type PrivateKey struct {
-	PublicKey
-	X *big.Int
-}
-
-// Encrypt encrypts the given message to the given public key. The result is a
-// pair of integers. Errors can result from reading random, or because msg is
-// too large to be encrypted to the public key.
-func Encrypt(random io.Reader, pub *PublicKey, msg []byte) (c1, c2 *big.Int, err error) {
-	pLen := (pub.P.BitLen() + 7) / 8
-	if len(msg) > pLen-11 {
-		err = errors.New("elgamal: message too long")
-		return
-	}
-
-	// EM = 0x02 || PS || 0x00 || M
-	em := make([]byte, pLen-1)
-	em[0] = 2
-	ps, mm := em[1:len(em)-len(msg)-1], em[len(em)-len(msg):]
-	err = nonZeroRandomBytes(ps, random)
-	if err != nil {
-		return
-	}
-	em[len(em)-len(msg)-1] = 0
-	copy(mm, msg)
-
-	m := new(big.Int).SetBytes(em)
-
-	k, err := rand.Int(random, pub.P)
-	if err != nil {
-		return
-	}
-
-	c1 = new(big.Int).Exp(pub.G, k, pub.P)
-	s := new(big.Int).Exp(pub.Y, k, pub.P)
-	c2 = s.Mul(s, m)
-	c2.Mod(c2, pub.P)
-
-	return
-}
-
-// Decrypt takes two integers, resulting from an ElGamal encryption, and
-// returns the plaintext of the message. An error can result only if the
-// ciphertext is invalid. Users should keep in mind that this is a padding
-// oracle and thus, if exposed to an adaptive chosen ciphertext attack, can
-// be used to break the cryptosystem.  See ``Chosen Ciphertext Attacks
-// Against Protocols Based on the RSA Encryption Standard PKCS #1'', Daniel
-// Bleichenbacher, Advances in Cryptology (Crypto '98),
-func Decrypt(priv *PrivateKey, c1, c2 *big.Int) (msg []byte, err error) {
-	s := new(big.Int).Exp(c1, priv.X, priv.P)
-	s.ModInverse(s, priv.P)
-	s.Mul(s, c2)
-	s.Mod(s, priv.P)
-	em := s.Bytes()
-
-	firstByteIsTwo := subtle.ConstantTimeByteEq(em[0], 2)
-
-	// The remainder of the plaintext must be a string of non-zero random
-	// octets, followed by a 0, followed by the message.
-	//   lookingForIndex: 1 iff we are still looking for the zero.
-	//   index: the offset of the first zero byte.
-	var lookingForIndex, index int
-	lookingForIndex = 1
-
-	for i := 1; i < len(em); i++ {
-		equals0 := subtle.ConstantTimeByteEq(em[i], 0)
-		index = subtle.ConstantTimeSelect(lookingForIndex&equals0, i, index)
-		lookingForIndex = subtle.ConstantTimeSelect(equals0, 0, lookingForIndex)
-	}
-
-	if firstByteIsTwo != 1 || lookingForIndex != 0 || index < 9 {
-		return nil, errors.New("elgamal: decryption error")
-	}
-	return em[index+1:], nil
-}
-
-// nonZeroRandomBytes fills the given slice with non-zero random octets.
-func nonZeroRandomBytes(s []byte, rand io.Reader) (err error) {
-	_, err = io.ReadFull(rand, s)
-	if err != nil {
-		return
-	}
-
-	for i := 0; i < len(s); i++ {
-		for s[i] == 0 {
-			_, err = io.ReadFull(rand, s[i:i+1])
-			if err != nil {
-				return
-			}
-		}
-	}
-
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal_test.go b/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal_test.go
deleted file mode 100644
index c4f99f5..0000000
--- a/vendor/golang.org/x/crypto/openpgp/elgamal/elgamal_test.go
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package elgamal
-
-import (
-	"bytes"
-	"crypto/rand"
-	"math/big"
-	"testing"
-)
-
-// This is the 1024-bit MODP group from RFC 5114, section 2.1:
-const primeHex = "B10B8F96A080E01DDE92DE5EAE5D54EC52C99FBCFB06A3C69A6A9DCA52D23B616073E28675A23D189838EF1E2EE652C013ECB4AEA906112324975C3CD49B83BFACCBDD7D90C4BD7098488E9C219A73724EFFD6FAE5644738FAA31A4FF55BCCC0A151AF5F0DC8B4BD45BF37DF365C1A65E68CFDA76D4DA708DF1FB2BC2E4A4371"
-
-const generatorHex = "A4D1CBD5C3FD34126765A442EFB99905F8104DD258AC507FD6406CFF14266D31266FEA1E5C41564B777E690F5504F213160217B4B01B886A5E91547F9E2749F4D7FBD7D3B9A92EE1909D0D2263F80A76A6A24C087A091F531DBF0A0169B6A28AD662A4D18E73AFA32D779D5918D08BC8858F4DCEF97C2A24855E6EEB22B3B2E5"
-
-func fromHex(hex string) *big.Int {
-	n, ok := new(big.Int).SetString(hex, 16)
-	if !ok {
-		panic("failed to parse hex number")
-	}
-	return n
-}
-
-func TestEncryptDecrypt(t *testing.T) {
-	priv := &PrivateKey{
-		PublicKey: PublicKey{
-			G: fromHex(generatorHex),
-			P: fromHex(primeHex),
-		},
-		X: fromHex("42"),
-	}
-	priv.Y = new(big.Int).Exp(priv.G, priv.X, priv.P)
-
-	message := []byte("hello world")
-	c1, c2, err := Encrypt(rand.Reader, &priv.PublicKey, message)
-	if err != nil {
-		t.Errorf("error encrypting: %s", err)
-	}
-	message2, err := Decrypt(priv, c1, c2)
-	if err != nil {
-		t.Errorf("error decrypting: %s", err)
-	}
-	if !bytes.Equal(message2, message) {
-		t.Errorf("decryption failed, got: %x, want: %x", message2, message)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/errors/errors.go b/vendor/golang.org/x/crypto/openpgp/errors/errors.go
deleted file mode 100644
index eb0550b..0000000
--- a/vendor/golang.org/x/crypto/openpgp/errors/errors.go
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package errors contains common error types for the OpenPGP packages.
-package errors // import "golang.org/x/crypto/openpgp/errors"
-
-import (
-	"strconv"
-)
-
-// A StructuralError is returned when OpenPGP data is found to be syntactically
-// invalid.
-type StructuralError string
-
-func (s StructuralError) Error() string {
-	return "openpgp: invalid data: " + string(s)
-}
-
-// UnsupportedError indicates that, although the OpenPGP data is valid, it
-// makes use of currently unimplemented features.
-type UnsupportedError string
-
-func (s UnsupportedError) Error() string {
-	return "openpgp: unsupported feature: " + string(s)
-}
-
-// InvalidArgumentError indicates that the caller is in error and passed an
-// incorrect value.
-type InvalidArgumentError string
-
-func (i InvalidArgumentError) Error() string {
-	return "openpgp: invalid argument: " + string(i)
-}
-
-// SignatureError indicates that a syntactically valid signature failed to
-// validate.
-type SignatureError string
-
-func (b SignatureError) Error() string {
-	return "openpgp: invalid signature: " + string(b)
-}
-
-type keyIncorrectError int
-
-func (ki keyIncorrectError) Error() string {
-	return "openpgp: incorrect key"
-}
-
-var ErrKeyIncorrect error = keyIncorrectError(0)
-
-type unknownIssuerError int
-
-func (unknownIssuerError) Error() string {
-	return "openpgp: signature made by unknown entity"
-}
-
-var ErrUnknownIssuer error = unknownIssuerError(0)
-
-type keyRevokedError int
-
-func (keyRevokedError) Error() string {
-	return "openpgp: signature made by revoked key"
-}
-
-var ErrKeyRevoked error = keyRevokedError(0)
-
-type UnknownPacketTypeError uint8
-
-func (upte UnknownPacketTypeError) Error() string {
-	return "openpgp: unknown packet type: " + strconv.Itoa(int(upte))
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/keys.go b/vendor/golang.org/x/crypto/openpgp/keys.go
deleted file mode 100644
index a79a8c1..0000000
--- a/vendor/golang.org/x/crypto/openpgp/keys.go
+++ /dev/null
@@ -1,652 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import (
-	"crypto/rsa"
-	"io"
-	"time"
-
-	"golang.org/x/crypto/openpgp/armor"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/packet"
-)
-
-// PublicKeyType is the armor type for a PGP public key.
-var PublicKeyType = "PGP PUBLIC KEY BLOCK"
-
-// PrivateKeyType is the armor type for a PGP private key.
-var PrivateKeyType = "PGP PRIVATE KEY BLOCK"
-
-// An Entity represents the components of an OpenPGP key: a primary public key
-// (which must be a signing key), one or more identities claimed by that key,
-// and zero or more subkeys, which may be encryption keys.
-type Entity struct {
-	PrimaryKey  *packet.PublicKey
-	PrivateKey  *packet.PrivateKey
-	Identities  map[string]*Identity // indexed by Identity.Name
-	Revocations []*packet.Signature
-	Subkeys     []Subkey
-}
-
-// An Identity represents an identity claimed by an Entity and zero or more
-// assertions by other entities about that claim.
-type Identity struct {
-	Name          string // by convention, has the form "Full Name (comment) <email@example.com>"
-	UserId        *packet.UserId
-	SelfSignature *packet.Signature
-	Signatures    []*packet.Signature
-}
-
-// A Subkey is an additional public key in an Entity. Subkeys can be used for
-// encryption.
-type Subkey struct {
-	PublicKey  *packet.PublicKey
-	PrivateKey *packet.PrivateKey
-	Sig        *packet.Signature
-}
-
-// A Key identifies a specific public key in an Entity. This is either the
-// Entity's primary key or a subkey.
-type Key struct {
-	Entity        *Entity
-	PublicKey     *packet.PublicKey
-	PrivateKey    *packet.PrivateKey
-	SelfSignature *packet.Signature
-}
-
-// A KeyRing provides access to public and private keys.
-type KeyRing interface {
-	// KeysById returns the set of keys that have the given key id.
-	KeysById(id uint64) []Key
-	// KeysByIdAndUsage returns the set of keys with the given id
-	// that also meet the key usage given by requiredUsage.
-	// The requiredUsage is expressed as the bitwise-OR of
-	// packet.KeyFlag* values.
-	KeysByIdUsage(id uint64, requiredUsage byte) []Key
-	// DecryptionKeys returns all private keys that are valid for
-	// decryption.
-	DecryptionKeys() []Key
-}
-
-// primaryIdentity returns the Identity marked as primary or the first identity
-// if none are so marked.
-func (e *Entity) primaryIdentity() *Identity {
-	var firstIdentity *Identity
-	for _, ident := range e.Identities {
-		if firstIdentity == nil {
-			firstIdentity = ident
-		}
-		if ident.SelfSignature.IsPrimaryId != nil && *ident.SelfSignature.IsPrimaryId {
-			return ident
-		}
-	}
-	return firstIdentity
-}
-
-// encryptionKey returns the best candidate Key for encrypting a message to the
-// given Entity.
-func (e *Entity) encryptionKey(now time.Time) (Key, bool) {
-	candidateSubkey := -1
-
-	// Iterate the keys to find the newest key
-	var maxTime time.Time
-	for i, subkey := range e.Subkeys {
-		if subkey.Sig.FlagsValid &&
-			subkey.Sig.FlagEncryptCommunications &&
-			subkey.PublicKey.PubKeyAlgo.CanEncrypt() &&
-			!subkey.Sig.KeyExpired(now) &&
-			(maxTime.IsZero() || subkey.Sig.CreationTime.After(maxTime)) {
-			candidateSubkey = i
-			maxTime = subkey.Sig.CreationTime
-		}
-	}
-
-	if candidateSubkey != -1 {
-		subkey := e.Subkeys[candidateSubkey]
-		return Key{e, subkey.PublicKey, subkey.PrivateKey, subkey.Sig}, true
-	}
-
-	// If we don't have any candidate subkeys for encryption and
-	// the primary key doesn't have any usage metadata then we
-	// assume that the primary key is ok. Or, if the primary key is
-	// marked as ok to encrypt to, then we can obviously use it.
-	i := e.primaryIdentity()
-	if !i.SelfSignature.FlagsValid || i.SelfSignature.FlagEncryptCommunications &&
-		e.PrimaryKey.PubKeyAlgo.CanEncrypt() &&
-		!i.SelfSignature.KeyExpired(now) {
-		return Key{e, e.PrimaryKey, e.PrivateKey, i.SelfSignature}, true
-	}
-
-	// This Entity appears to be signing only.
-	return Key{}, false
-}
-
-// signingKey return the best candidate Key for signing a message with this
-// Entity.
-func (e *Entity) signingKey(now time.Time) (Key, bool) {
-	candidateSubkey := -1
-
-	for i, subkey := range e.Subkeys {
-		if subkey.Sig.FlagsValid &&
-			subkey.Sig.FlagSign &&
-			subkey.PublicKey.PubKeyAlgo.CanSign() &&
-			!subkey.Sig.KeyExpired(now) {
-			candidateSubkey = i
-			break
-		}
-	}
-
-	if candidateSubkey != -1 {
-		subkey := e.Subkeys[candidateSubkey]
-		return Key{e, subkey.PublicKey, subkey.PrivateKey, subkey.Sig}, true
-	}
-
-	// If we have no candidate subkey then we assume that it's ok to sign
-	// with the primary key.
-	i := e.primaryIdentity()
-	if !i.SelfSignature.FlagsValid || i.SelfSignature.FlagSign &&
-		!i.SelfSignature.KeyExpired(now) {
-		return Key{e, e.PrimaryKey, e.PrivateKey, i.SelfSignature}, true
-	}
-
-	return Key{}, false
-}
-
-// An EntityList contains one or more Entities.
-type EntityList []*Entity
-
-// KeysById returns the set of keys that have the given key id.
-func (el EntityList) KeysById(id uint64) (keys []Key) {
-	for _, e := range el {
-		if e.PrimaryKey.KeyId == id {
-			var selfSig *packet.Signature
-			for _, ident := range e.Identities {
-				if selfSig == nil {
-					selfSig = ident.SelfSignature
-				} else if ident.SelfSignature.IsPrimaryId != nil && *ident.SelfSignature.IsPrimaryId {
-					selfSig = ident.SelfSignature
-					break
-				}
-			}
-			keys = append(keys, Key{e, e.PrimaryKey, e.PrivateKey, selfSig})
-		}
-
-		for _, subKey := range e.Subkeys {
-			if subKey.PublicKey.KeyId == id {
-				keys = append(keys, Key{e, subKey.PublicKey, subKey.PrivateKey, subKey.Sig})
-			}
-		}
-	}
-	return
-}
-
-// KeysByIdAndUsage returns the set of keys with the given id that also meet
-// the key usage given by requiredUsage.  The requiredUsage is expressed as
-// the bitwise-OR of packet.KeyFlag* values.
-func (el EntityList) KeysByIdUsage(id uint64, requiredUsage byte) (keys []Key) {
-	for _, key := range el.KeysById(id) {
-		if len(key.Entity.Revocations) > 0 {
-			continue
-		}
-
-		if key.SelfSignature.RevocationReason != nil {
-			continue
-		}
-
-		if key.SelfSignature.FlagsValid && requiredUsage != 0 {
-			var usage byte
-			if key.SelfSignature.FlagCertify {
-				usage |= packet.KeyFlagCertify
-			}
-			if key.SelfSignature.FlagSign {
-				usage |= packet.KeyFlagSign
-			}
-			if key.SelfSignature.FlagEncryptCommunications {
-				usage |= packet.KeyFlagEncryptCommunications
-			}
-			if key.SelfSignature.FlagEncryptStorage {
-				usage |= packet.KeyFlagEncryptStorage
-			}
-			if usage&requiredUsage != requiredUsage {
-				continue
-			}
-		}
-
-		keys = append(keys, key)
-	}
-	return
-}
-
-// DecryptionKeys returns all private keys that are valid for decryption.
-func (el EntityList) DecryptionKeys() (keys []Key) {
-	for _, e := range el {
-		for _, subKey := range e.Subkeys {
-			if subKey.PrivateKey != nil && (!subKey.Sig.FlagsValid || subKey.Sig.FlagEncryptStorage || subKey.Sig.FlagEncryptCommunications) {
-				keys = append(keys, Key{e, subKey.PublicKey, subKey.PrivateKey, subKey.Sig})
-			}
-		}
-	}
-	return
-}
-
-// ReadArmoredKeyRing reads one or more public/private keys from an armor keyring file.
-func ReadArmoredKeyRing(r io.Reader) (EntityList, error) {
-	block, err := armor.Decode(r)
-	if err == io.EOF {
-		return nil, errors.InvalidArgumentError("no armored data found")
-	}
-	if err != nil {
-		return nil, err
-	}
-	if block.Type != PublicKeyType && block.Type != PrivateKeyType {
-		return nil, errors.InvalidArgumentError("expected public or private key block, got: " + block.Type)
-	}
-
-	return ReadKeyRing(block.Body)
-}
-
-// ReadKeyRing reads one or more public/private keys. Unsupported keys are
-// ignored as long as at least a single valid key is found.
-func ReadKeyRing(r io.Reader) (el EntityList, err error) {
-	packets := packet.NewReader(r)
-	var lastUnsupportedError error
-
-	for {
-		var e *Entity
-		e, err = ReadEntity(packets)
-		if err != nil {
-			// TODO: warn about skipped unsupported/unreadable keys
-			if _, ok := err.(errors.UnsupportedError); ok {
-				lastUnsupportedError = err
-				err = readToNextPublicKey(packets)
-			} else if _, ok := err.(errors.StructuralError); ok {
-				// Skip unreadable, badly-formatted keys
-				lastUnsupportedError = err
-				err = readToNextPublicKey(packets)
-			}
-			if err == io.EOF {
-				err = nil
-				break
-			}
-			if err != nil {
-				el = nil
-				break
-			}
-		} else {
-			el = append(el, e)
-		}
-	}
-
-	if len(el) == 0 && err == nil {
-		err = lastUnsupportedError
-	}
-	return
-}
-
-// readToNextPublicKey reads packets until the start of the entity and leaves
-// the first packet of the new entity in the Reader.
-func readToNextPublicKey(packets *packet.Reader) (err error) {
-	var p packet.Packet
-	for {
-		p, err = packets.Next()
-		if err == io.EOF {
-			return
-		} else if err != nil {
-			if _, ok := err.(errors.UnsupportedError); ok {
-				err = nil
-				continue
-			}
-			return
-		}
-
-		if pk, ok := p.(*packet.PublicKey); ok && !pk.IsSubkey {
-			packets.Unread(p)
-			return
-		}
-	}
-}
-
-// ReadEntity reads an entity (public key, identities, subkeys etc) from the
-// given Reader.
-func ReadEntity(packets *packet.Reader) (*Entity, error) {
-	e := new(Entity)
-	e.Identities = make(map[string]*Identity)
-
-	p, err := packets.Next()
-	if err != nil {
-		return nil, err
-	}
-
-	var ok bool
-	if e.PrimaryKey, ok = p.(*packet.PublicKey); !ok {
-		if e.PrivateKey, ok = p.(*packet.PrivateKey); !ok {
-			packets.Unread(p)
-			return nil, errors.StructuralError("first packet was not a public/private key")
-		}
-		e.PrimaryKey = &e.PrivateKey.PublicKey
-	}
-
-	if !e.PrimaryKey.PubKeyAlgo.CanSign() {
-		return nil, errors.StructuralError("primary key cannot be used for signatures")
-	}
-
-	var current *Identity
-	var revocations []*packet.Signature
-EachPacket:
-	for {
-		p, err := packets.Next()
-		if err == io.EOF {
-			break
-		} else if err != nil {
-			return nil, err
-		}
-
-		switch pkt := p.(type) {
-		case *packet.UserId:
-			// Make a new Identity object, that we might wind up throwing away.
-			// We'll only add it if we get a valid self-signature over this
-			// userID.
-			current = new(Identity)
-			current.Name = pkt.Id
-			current.UserId = pkt
-
-			for {
-				p, err = packets.Next()
-				if err == io.EOF {
-					break EachPacket
-				} else if err != nil {
-					return nil, err
-				}
-
-				sig, ok := p.(*packet.Signature)
-				if !ok {
-					packets.Unread(p)
-					continue EachPacket
-				}
-
-				if (sig.SigType == packet.SigTypePositiveCert || sig.SigType == packet.SigTypeGenericCert) && sig.IssuerKeyId != nil && *sig.IssuerKeyId == e.PrimaryKey.KeyId {
-					if err = e.PrimaryKey.VerifyUserIdSignature(pkt.Id, e.PrimaryKey, sig); err != nil {
-						return nil, errors.StructuralError("user ID self-signature invalid: " + err.Error())
-					}
-					current.SelfSignature = sig
-					e.Identities[pkt.Id] = current
-				} else {
-					current.Signatures = append(current.Signatures, sig)
-				}
-			}
-		case *packet.Signature:
-			if pkt.SigType == packet.SigTypeKeyRevocation {
-				revocations = append(revocations, pkt)
-			} else if pkt.SigType == packet.SigTypeDirectSignature {
-				// TODO: RFC4880 5.2.1 permits signatures
-				// directly on keys (eg. to bind additional
-				// revocation keys).
-			} else if current == nil {
-				return nil, errors.StructuralError("signature packet found before user id packet")
-			} else {
-				current.Signatures = append(current.Signatures, pkt)
-			}
-		case *packet.PrivateKey:
-			if pkt.IsSubkey == false {
-				packets.Unread(p)
-				break EachPacket
-			}
-			err = addSubkey(e, packets, &pkt.PublicKey, pkt)
-			if err != nil {
-				return nil, err
-			}
-		case *packet.PublicKey:
-			if pkt.IsSubkey == false {
-				packets.Unread(p)
-				break EachPacket
-			}
-			err = addSubkey(e, packets, pkt, nil)
-			if err != nil {
-				return nil, err
-			}
-		default:
-			// we ignore unknown packets
-		}
-	}
-
-	if len(e.Identities) == 0 {
-		return nil, errors.StructuralError("entity without any identities")
-	}
-
-	for _, revocation := range revocations {
-		err = e.PrimaryKey.VerifyRevocationSignature(revocation)
-		if err == nil {
-			e.Revocations = append(e.Revocations, revocation)
-		} else {
-			// TODO: RFC 4880 5.2.3.15 defines revocation keys.
-			return nil, errors.StructuralError("revocation signature signed by alternate key")
-		}
-	}
-
-	return e, nil
-}
-
-func addSubkey(e *Entity, packets *packet.Reader, pub *packet.PublicKey, priv *packet.PrivateKey) error {
-	var subKey Subkey
-	subKey.PublicKey = pub
-	subKey.PrivateKey = priv
-	p, err := packets.Next()
-	if err == io.EOF {
-		return io.ErrUnexpectedEOF
-	}
-	if err != nil {
-		return errors.StructuralError("subkey signature invalid: " + err.Error())
-	}
-	var ok bool
-	subKey.Sig, ok = p.(*packet.Signature)
-	if !ok {
-		return errors.StructuralError("subkey packet not followed by signature")
-	}
-	if subKey.Sig.SigType != packet.SigTypeSubkeyBinding && subKey.Sig.SigType != packet.SigTypeSubkeyRevocation {
-		return errors.StructuralError("subkey signature with wrong type")
-	}
-	err = e.PrimaryKey.VerifyKeySignature(subKey.PublicKey, subKey.Sig)
-	if err != nil {
-		return errors.StructuralError("subkey signature invalid: " + err.Error())
-	}
-	e.Subkeys = append(e.Subkeys, subKey)
-	return nil
-}
-
-const defaultRSAKeyBits = 2048
-
-// NewEntity returns an Entity that contains a fresh RSA/RSA keypair with a
-// single identity composed of the given full name, comment and email, any of
-// which may be empty but must not contain any of "()<>\x00".
-// If config is nil, sensible defaults will be used.
-func NewEntity(name, comment, email string, config *packet.Config) (*Entity, error) {
-	currentTime := config.Now()
-
-	bits := defaultRSAKeyBits
-	if config != nil && config.RSABits != 0 {
-		bits = config.RSABits
-	}
-
-	uid := packet.NewUserId(name, comment, email)
-	if uid == nil {
-		return nil, errors.InvalidArgumentError("user id field contained invalid characters")
-	}
-	signingPriv, err := rsa.GenerateKey(config.Random(), bits)
-	if err != nil {
-		return nil, err
-	}
-	encryptingPriv, err := rsa.GenerateKey(config.Random(), bits)
-	if err != nil {
-		return nil, err
-	}
-
-	e := &Entity{
-		PrimaryKey: packet.NewRSAPublicKey(currentTime, &signingPriv.PublicKey),
-		PrivateKey: packet.NewRSAPrivateKey(currentTime, signingPriv),
-		Identities: make(map[string]*Identity),
-	}
-	isPrimaryId := true
-	e.Identities[uid.Id] = &Identity{
-		Name:   uid.Id,
-		UserId: uid,
-		SelfSignature: &packet.Signature{
-			CreationTime: currentTime,
-			SigType:      packet.SigTypePositiveCert,
-			PubKeyAlgo:   packet.PubKeyAlgoRSA,
-			Hash:         config.Hash(),
-			IsPrimaryId:  &isPrimaryId,
-			FlagsValid:   true,
-			FlagSign:     true,
-			FlagCertify:  true,
-			IssuerKeyId:  &e.PrimaryKey.KeyId,
-		},
-	}
-	err = e.Identities[uid.Id].SelfSignature.SignUserId(uid.Id, e.PrimaryKey, e.PrivateKey, config)
-	if err != nil {
-		return nil, err
-	}
-
-	// If the user passes in a DefaultHash via packet.Config,
-	// set the PreferredHash for the SelfSignature.
-	if config != nil && config.DefaultHash != 0 {
-		e.Identities[uid.Id].SelfSignature.PreferredHash = []uint8{hashToHashId(config.DefaultHash)}
-	}
-
-	// Likewise for DefaultCipher.
-	if config != nil && config.DefaultCipher != 0 {
-		e.Identities[uid.Id].SelfSignature.PreferredSymmetric = []uint8{uint8(config.DefaultCipher)}
-	}
-
-	e.Subkeys = make([]Subkey, 1)
-	e.Subkeys[0] = Subkey{
-		PublicKey:  packet.NewRSAPublicKey(currentTime, &encryptingPriv.PublicKey),
-		PrivateKey: packet.NewRSAPrivateKey(currentTime, encryptingPriv),
-		Sig: &packet.Signature{
-			CreationTime:              currentTime,
-			SigType:                   packet.SigTypeSubkeyBinding,
-			PubKeyAlgo:                packet.PubKeyAlgoRSA,
-			Hash:                      config.Hash(),
-			FlagsValid:                true,
-			FlagEncryptStorage:        true,
-			FlagEncryptCommunications: true,
-			IssuerKeyId:               &e.PrimaryKey.KeyId,
-		},
-	}
-	e.Subkeys[0].PublicKey.IsSubkey = true
-	e.Subkeys[0].PrivateKey.IsSubkey = true
-	err = e.Subkeys[0].Sig.SignKey(e.Subkeys[0].PublicKey, e.PrivateKey, config)
-	if err != nil {
-		return nil, err
-	}
-	return e, nil
-}
-
-// SerializePrivate serializes an Entity, including private key material, but
-// excluding signatures from other entities, to the given Writer.
-// Identities and subkeys are re-signed in case they changed since NewEntry.
-// If config is nil, sensible defaults will be used.
-func (e *Entity) SerializePrivate(w io.Writer, config *packet.Config) (err error) {
-	err = e.PrivateKey.Serialize(w)
-	if err != nil {
-		return
-	}
-	for _, ident := range e.Identities {
-		err = ident.UserId.Serialize(w)
-		if err != nil {
-			return
-		}
-		err = ident.SelfSignature.SignUserId(ident.UserId.Id, e.PrimaryKey, e.PrivateKey, config)
-		if err != nil {
-			return
-		}
-		err = ident.SelfSignature.Serialize(w)
-		if err != nil {
-			return
-		}
-	}
-	for _, subkey := range e.Subkeys {
-		err = subkey.PrivateKey.Serialize(w)
-		if err != nil {
-			return
-		}
-		err = subkey.Sig.SignKey(subkey.PublicKey, e.PrivateKey, config)
-		if err != nil {
-			return
-		}
-		err = subkey.Sig.Serialize(w)
-		if err != nil {
-			return
-		}
-	}
-	return nil
-}
-
-// Serialize writes the public part of the given Entity to w, including
-// signatures from other entities. No private key material will be output.
-func (e *Entity) Serialize(w io.Writer) error {
-	err := e.PrimaryKey.Serialize(w)
-	if err != nil {
-		return err
-	}
-	for _, ident := range e.Identities {
-		err = ident.UserId.Serialize(w)
-		if err != nil {
-			return err
-		}
-		err = ident.SelfSignature.Serialize(w)
-		if err != nil {
-			return err
-		}
-		for _, sig := range ident.Signatures {
-			err = sig.Serialize(w)
-			if err != nil {
-				return err
-			}
-		}
-	}
-	for _, subkey := range e.Subkeys {
-		err = subkey.PublicKey.Serialize(w)
-		if err != nil {
-			return err
-		}
-		err = subkey.Sig.Serialize(w)
-		if err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-// SignIdentity adds a signature to e, from signer, attesting that identity is
-// associated with e. The provided identity must already be an element of
-// e.Identities and the private key of signer must have been decrypted if
-// necessary.
-// If config is nil, sensible defaults will be used.
-func (e *Entity) SignIdentity(identity string, signer *Entity, config *packet.Config) error {
-	if signer.PrivateKey == nil {
-		return errors.InvalidArgumentError("signing Entity must have a private key")
-	}
-	if signer.PrivateKey.Encrypted {
-		return errors.InvalidArgumentError("signing Entity's private key must be decrypted")
-	}
-	ident, ok := e.Identities[identity]
-	if !ok {
-		return errors.InvalidArgumentError("given identity string not found in Entity")
-	}
-
-	sig := &packet.Signature{
-		SigType:      packet.SigTypeGenericCert,
-		PubKeyAlgo:   signer.PrivateKey.PubKeyAlgo,
-		Hash:         config.Hash(),
-		CreationTime: config.Now(),
-		IssuerKeyId:  &signer.PrivateKey.KeyId,
-	}
-	if err := sig.SignUserId(identity, e.PrimaryKey, signer.PrivateKey, config); err != nil {
-		return err
-	}
-	ident.Signatures = append(ident.Signatures, sig)
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/keys_test.go b/vendor/golang.org/x/crypto/openpgp/keys_test.go
deleted file mode 100644
index d877589..0000000
--- a/vendor/golang.org/x/crypto/openpgp/keys_test.go
+++ /dev/null
@@ -1,549 +0,0 @@
-package openpgp
-
-import (
-	"bytes"
-	"crypto"
-	"strings"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/packet"
-)
-
-func TestKeyExpiry(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(expiringKeyHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-	entity := kring[0]
-
-	const timeFormat = "2006-01-02"
-	time1, _ := time.Parse(timeFormat, "2013-07-01")
-
-	// The expiringKeyHex key is structured as:
-	//
-	// pub  1024R/5E237D8C  created: 2013-07-01                      expires: 2013-07-31  usage: SC
-	// sub  1024R/1ABB25A0  created: 2013-07-01 23:11:07 +0200 CEST  expires: 2013-07-08  usage: E
-	// sub  1024R/96A672F5  created: 2013-07-01 23:11:23 +0200 CEST  expires: 2013-07-31  usage: E
-	//
-	// So this should select the newest, non-expired encryption key.
-	key, _ := entity.encryptionKey(time1)
-	if id, expected := key.PublicKey.KeyIdShortString(), "96A672F5"; id != expected {
-		t.Errorf("Expected key %s at time %s, but got key %s", expected, time1.Format(timeFormat), id)
-	}
-
-	// Once the first encryption subkey has expired, the second should be
-	// selected.
-	time2, _ := time.Parse(timeFormat, "2013-07-09")
-	key, _ = entity.encryptionKey(time2)
-	if id, expected := key.PublicKey.KeyIdShortString(), "96A672F5"; id != expected {
-		t.Errorf("Expected key %s at time %s, but got key %s", expected, time2.Format(timeFormat), id)
-	}
-
-	// Once all the keys have expired, nothing should be returned.
-	time3, _ := time.Parse(timeFormat, "2013-08-01")
-	if key, ok := entity.encryptionKey(time3); ok {
-		t.Errorf("Expected no key at time %s, but got key %s", time3.Format(timeFormat), key.PublicKey.KeyIdShortString())
-	}
-}
-
-func TestMissingCrossSignature(t *testing.T) {
-	// This public key has a signing subkey, but the subkey does not
-	// contain a cross-signature.
-	keys, err := ReadArmoredKeyRing(bytes.NewBufferString(missingCrossSignatureKey))
-	if len(keys) != 0 {
-		t.Errorf("Accepted key with missing cross signature")
-	}
-	if err == nil {
-		t.Fatal("Failed to detect error in keyring with missing cross signature")
-	}
-	structural, ok := err.(errors.StructuralError)
-	if !ok {
-		t.Fatalf("Unexpected class of error: %T. Wanted StructuralError", err)
-	}
-	const expectedMsg = "signing subkey is missing cross-signature"
-	if !strings.Contains(string(structural), expectedMsg) {
-		t.Fatalf("Unexpected error: %q. Expected it to contain %q", err, expectedMsg)
-	}
-}
-
-func TestInvalidCrossSignature(t *testing.T) {
-	// This public key has a signing subkey, and the subkey has an
-	// embedded cross-signature. However, the cross-signature does
-	// not correctly validate over the primary and subkey.
-	keys, err := ReadArmoredKeyRing(bytes.NewBufferString(invalidCrossSignatureKey))
-	if len(keys) != 0 {
-		t.Errorf("Accepted key with invalid cross signature")
-	}
-	if err == nil {
-		t.Fatal("Failed to detect error in keyring with an invalid cross signature")
-	}
-	structural, ok := err.(errors.StructuralError)
-	if !ok {
-		t.Fatalf("Unexpected class of error: %T. Wanted StructuralError", err)
-	}
-	const expectedMsg = "subkey signature invalid"
-	if !strings.Contains(string(structural), expectedMsg) {
-		t.Fatalf("Unexpected error: %q. Expected it to contain %q", err, expectedMsg)
-	}
-}
-
-func TestGoodCrossSignature(t *testing.T) {
-	// This public key has a signing subkey, and the subkey has an
-	// embedded cross-signature which correctly validates over the
-	// primary and subkey.
-	keys, err := ReadArmoredKeyRing(bytes.NewBufferString(goodCrossSignatureKey))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(keys) != 1 {
-		t.Errorf("Failed to accept key with good cross signature, %d", len(keys))
-	}
-	if len(keys[0].Subkeys) != 1 {
-		t.Errorf("Failed to accept good subkey, %d", len(keys[0].Subkeys))
-	}
-}
-
-func TestRevokedUserID(t *testing.T) {
-	// This key contains 2 UIDs, one of which is revoked:
-	// [ultimate] (1)  Golang Gopher <no-reply@golang.com>
-	// [ revoked] (2)  Golang Gopher <revoked@golang.com>
-	keys, err := ReadArmoredKeyRing(bytes.NewBufferString(revokedUserIDKey))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if len(keys) != 1 {
-		t.Fatal("Failed to read key with a revoked user id")
-	}
-
-	var identities []*Identity
-	for _, identity := range keys[0].Identities {
-		identities = append(identities, identity)
-	}
-
-	if numIdentities, numExpected := len(identities), 1; numIdentities != numExpected {
-		t.Errorf("obtained %d identities, expected %d", numIdentities, numExpected)
-	}
-
-	if identityName, expectedName := identities[0].Name, "Golang Gopher <no-reply@golang.com>"; identityName != expectedName {
-		t.Errorf("obtained identity %s expected %s", identityName, expectedName)
-	}
-}
-
-// TestExternallyRevokableKey attempts to load and parse a key with a third party revocation permission.
-func TestExternallyRevocableKey(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(subkeyUsageHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// The 0xA42704B92866382A key can be revoked by 0xBE3893CB843D0FE70C
-	// according to this signature that appears within the key:
-	// :signature packet: algo 1, keyid A42704B92866382A
-	//    version 4, created 1396409682, md5len 0, sigclass 0x1f
-	//    digest algo 2, begin of digest a9 84
-	//    hashed subpkt 2 len 4 (sig created 2014-04-02)
-	//    hashed subpkt 12 len 22 (revocation key: c=80 a=1 f=CE094AA433F7040BB2DDF0BE3893CB843D0FE70C)
-	//    hashed subpkt 7 len 1 (not revocable)
-	//    subpkt 16 len 8 (issuer key ID A42704B92866382A)
-	//    data: [1024 bits]
-
-	id := uint64(0xA42704B92866382A)
-	keys := kring.KeysById(id)
-	if len(keys) != 1 {
-		t.Errorf("Expected to find key id %X, but got %d matches", id, len(keys))
-	}
-}
-
-func TestKeyRevocation(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(revokedKeyHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// revokedKeyHex contains these keys:
-	// pub   1024R/9A34F7C0 2014-03-25 [revoked: 2014-03-25]
-	// sub   1024R/1BA3CD60 2014-03-25 [revoked: 2014-03-25]
-	ids := []uint64{0xA401D9F09A34F7C0, 0x5CD3BE0A1BA3CD60}
-
-	for _, id := range ids {
-		keys := kring.KeysById(id)
-		if len(keys) != 1 {
-			t.Errorf("Expected KeysById to find revoked key %X, but got %d matches", id, len(keys))
-		}
-		keys = kring.KeysByIdUsage(id, 0)
-		if len(keys) != 0 {
-			t.Errorf("Expected KeysByIdUsage to filter out revoked key %X, but got %d matches", id, len(keys))
-		}
-	}
-}
-
-func TestSubkeyRevocation(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(revokedSubkeyHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// revokedSubkeyHex contains these keys:
-	// pub   1024R/4EF7E4BECCDE97F0 2014-03-25
-	// sub   1024R/D63636E2B96AE423 2014-03-25
-	// sub   1024D/DBCE4EE19529437F 2014-03-25
-	// sub   1024R/677815E371C2FD23 2014-03-25 [revoked: 2014-03-25]
-	validKeys := []uint64{0x4EF7E4BECCDE97F0, 0xD63636E2B96AE423, 0xDBCE4EE19529437F}
-	revokedKey := uint64(0x677815E371C2FD23)
-
-	for _, id := range validKeys {
-		keys := kring.KeysById(id)
-		if len(keys) != 1 {
-			t.Errorf("Expected KeysById to find key %X, but got %d matches", id, len(keys))
-		}
-		keys = kring.KeysByIdUsage(id, 0)
-		if len(keys) != 1 {
-			t.Errorf("Expected KeysByIdUsage to find key %X, but got %d matches", id, len(keys))
-		}
-	}
-
-	keys := kring.KeysById(revokedKey)
-	if len(keys) != 1 {
-		t.Errorf("Expected KeysById to find key %X, but got %d matches", revokedKey, len(keys))
-	}
-
-	keys = kring.KeysByIdUsage(revokedKey, 0)
-	if len(keys) != 0 {
-		t.Errorf("Expected KeysByIdUsage to filter out revoked key %X, but got %d matches", revokedKey, len(keys))
-	}
-}
-
-func TestKeyUsage(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(subkeyUsageHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// subkeyUsageHex contains these keys:
-	// pub  1024R/2866382A  created: 2014-04-01  expires: never       usage: SC
-	// sub  1024R/936C9153  created: 2014-04-01  expires: never       usage: E
-	// sub  1024R/64D5F5BB  created: 2014-04-02  expires: never       usage: E
-	// sub  1024D/BC0BA992  created: 2014-04-02  expires: never       usage: S
-	certifiers := []uint64{0xA42704B92866382A}
-	signers := []uint64{0xA42704B92866382A, 0x42CE2C64BC0BA992}
-	encrypters := []uint64{0x09C0C7D9936C9153, 0xC104E98664D5F5BB}
-
-	for _, id := range certifiers {
-		keys := kring.KeysByIdUsage(id, packet.KeyFlagCertify)
-		if len(keys) == 1 {
-			if keys[0].PublicKey.KeyId != id {
-				t.Errorf("Expected to find certifier key id %X, but got %X", id, keys[0].PublicKey.KeyId)
-			}
-		} else {
-			t.Errorf("Expected one match for certifier key id %X, but got %d matches", id, len(keys))
-		}
-	}
-
-	for _, id := range signers {
-		keys := kring.KeysByIdUsage(id, packet.KeyFlagSign)
-		if len(keys) == 1 {
-			if keys[0].PublicKey.KeyId != id {
-				t.Errorf("Expected to find signing key id %X, but got %X", id, keys[0].PublicKey.KeyId)
-			}
-		} else {
-			t.Errorf("Expected one match for signing key id %X, but got %d matches", id, len(keys))
-		}
-
-		// This keyring contains no encryption keys that are also good for signing.
-		keys = kring.KeysByIdUsage(id, packet.KeyFlagEncryptStorage|packet.KeyFlagEncryptCommunications)
-		if len(keys) != 0 {
-			t.Errorf("Unexpected match for encryption key id %X", id)
-		}
-	}
-
-	for _, id := range encrypters {
-		keys := kring.KeysByIdUsage(id, packet.KeyFlagEncryptStorage|packet.KeyFlagEncryptCommunications)
-		if len(keys) == 1 {
-			if keys[0].PublicKey.KeyId != id {
-				t.Errorf("Expected to find encryption key id %X, but got %X", id, keys[0].PublicKey.KeyId)
-			}
-		} else {
-			t.Errorf("Expected one match for encryption key id %X, but got %d matches", id, len(keys))
-		}
-
-		// This keyring contains no encryption keys that are also good for signing.
-		keys = kring.KeysByIdUsage(id, packet.KeyFlagSign)
-		if len(keys) != 0 {
-			t.Errorf("Unexpected match for signing key id %X", id)
-		}
-	}
-}
-
-func TestIdVerification(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(testKeys1And2PrivateHex))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := kring[1].PrivateKey.Decrypt([]byte("passphrase")); err != nil {
-		t.Fatal(err)
-	}
-
-	const identity = "Test Key 1 (RSA)"
-	if err := kring[0].SignIdentity(identity, kring[1], nil); err != nil {
-		t.Fatal(err)
-	}
-
-	ident, ok := kring[0].Identities[identity]
-	if !ok {
-		t.Fatal("identity missing from key after signing")
-	}
-
-	checked := false
-	for _, sig := range ident.Signatures {
-		if sig.IssuerKeyId == nil || *sig.IssuerKeyId != kring[1].PrimaryKey.KeyId {
-			continue
-		}
-
-		if err := kring[1].PrimaryKey.VerifyUserIdSignature(identity, kring[0].PrimaryKey, sig); err != nil {
-			t.Fatalf("error verifying new identity signature: %s", err)
-		}
-		checked = true
-		break
-	}
-
-	if !checked {
-		t.Fatal("didn't find identity signature in Entity")
-	}
-}
-
-func TestNewEntityWithPreferredHash(t *testing.T) {
-	c := &packet.Config{
-		DefaultHash: crypto.SHA256,
-	}
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", c)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for _, identity := range entity.Identities {
-		if len(identity.SelfSignature.PreferredHash) == 0 {
-			t.Fatal("didn't find a preferred hash in self signature")
-		}
-		ph := hashToHashId(c.DefaultHash)
-		if identity.SelfSignature.PreferredHash[0] != ph {
-			t.Fatalf("Expected preferred hash to be %d, got %d", ph, identity.SelfSignature.PreferredHash[0])
-		}
-	}
-}
-
-func TestNewEntityWithoutPreferredHash(t *testing.T) {
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for _, identity := range entity.Identities {
-		if len(identity.SelfSignature.PreferredHash) != 0 {
-			t.Fatalf("Expected preferred hash to be empty but got length %d", len(identity.SelfSignature.PreferredHash))
-		}
-	}
-}
-
-func TestNewEntityCorrectName(t *testing.T) {
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if len(entity.Identities) != 1 {
-		t.Fatalf("len(entity.Identities) = %d, want 1", len(entity.Identities))
-	}
-	var got string
-	for _, i := range entity.Identities {
-		got = i.Name
-	}
-	want := "Golang Gopher (Test Key) <no-reply@golang.com>"
-	if got != want {
-		t.Fatalf("Identity.Name = %q, want %q", got, want)
-	}
-}
-
-func TestNewEntityWithPreferredSymmetric(t *testing.T) {
-	c := &packet.Config{
-		DefaultCipher: packet.CipherAES256,
-	}
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", c)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for _, identity := range entity.Identities {
-		if len(identity.SelfSignature.PreferredSymmetric) == 0 {
-			t.Fatal("didn't find a preferred cipher in self signature")
-		}
-		if identity.SelfSignature.PreferredSymmetric[0] != uint8(c.DefaultCipher) {
-			t.Fatalf("Expected preferred cipher to be %d, got %d", uint8(c.DefaultCipher), identity.SelfSignature.PreferredSymmetric[0])
-		}
-	}
-}
-
-func TestNewEntityWithoutPreferredSymmetric(t *testing.T) {
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	for _, identity := range entity.Identities {
-		if len(identity.SelfSignature.PreferredSymmetric) != 0 {
-			t.Fatalf("Expected preferred cipher to be empty but got length %d", len(identity.SelfSignature.PreferredSymmetric))
-		}
-	}
-}
-
-func TestNewEntityPublicSerialization(t *testing.T) {
-	entity, err := NewEntity("Golang Gopher", "Test Key", "no-reply@golang.com", nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	serializedEntity := bytes.NewBuffer(nil)
-	entity.Serialize(serializedEntity)
-
-	_, err = ReadEntity(packet.NewReader(bytes.NewBuffer(serializedEntity.Bytes())))
-	if err != nil {
-		t.Fatal(err)
-	}
-}
-
-const expiringKeyHex = "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"
-const subkeyUsageHex = "988d04533a52bc010400d26af43085558f65b9e7dbc90cb9238015259aed5e954637adcfa2181548b2d0b60c65f1f42ec5081cbf1bc0a8aa4900acfb77070837c58f26012fbce297d70afe96e759ad63531f0037538e70dbf8e384569b9720d99d8eb39d8d0a2947233ed242436cb6ac7dfe74123354b3d0119b5c235d3dd9c9d6c004f8ffaf67ad8583001101000188b7041f010200210502533b8552170c8001ce094aa433f7040bb2ddf0be3893cb843d0fe70c020700000a0910a42704b92866382aa98404009d63d916a27543da4221c60087c33f1c44bec9998c5438018ed370cca4962876c748e94b73eb39c58eb698063f3fd6346d58dd2a11c0247934c4a9d71f24754f7468f96fb24c3e791dd2392b62f626148ad724189498cbf993db2df7c0cdc2d677c35da0f16cb16c9ce7c33b4de65a4a91b1d21a130ae9cc26067718910ef8e2b417556d627261203c756d627261407379642e65642e61753e88b80413010200220502533a52bc021b03060b090807030206150802090a0b0416020301021e01021780000a0910a42704b92866382a47840400c0c2bd04f5fca586de408b395b3c280a278259c93eaaa8b79a53b97003f8ed502a8a00446dd9947fb462677e4fcac0dac2f0701847d15130aadb6cd9e0705ea0cf5f92f129136c7be21a718d46c8e641eb7f044f2adae573e11ae423a0a9ca51324f03a8a2f34b91fa40c3cc764bee4dccadedb54c768ba0469b683ea53f1c29b88d04533a52bc01040099c92a5d6f8b744224da27bc2369127c35269b58bec179de6bbc038f749344222f85a31933224f26b70243c4e4b2d242f0c4777eaef7b5502f9dad6d8bf3aaeb471210674b74de2d7078af497d55f5cdad97c7bedfbc1b41e8065a97c9c3d344b21fc81d27723af8e374bc595da26ea242dccb6ae497be26eea57e563ed517e90011010001889f0418010200090502533a52bc021b0c000a0910a42704b92866382afa1403ff70284c2de8a043ff51d8d29772602fa98009b7861c540535f874f2c230af8caf5638151a636b21f8255003997ccd29747fdd06777bb24f9593bd7d98a3e887689bf902f999915fcc94625ae487e5d13e6616f89090ebc4fdc7eb5cad8943e4056995bb61c6af37f8043016876a958ec7ebf39c43d20d53b7f546cfa83e8d2604b88d04533b8283010400c0b529316dbdf58b4c54461e7e669dc11c09eb7f73819f178ccd4177b9182b91d138605fcf1e463262fabefa73f94a52b5e15d1904635541c7ea540f07050ce0fb51b73e6f88644cec86e91107c957a114f69554548a85295d2b70bd0b203992f76eb5d493d86d9eabcaa7ef3fc7db7e458438db3fcdb0ca1cc97c638439a9170011010001889f0418010200090502533b8283021b0c000a0910a42704b92866382adc6d0400cfff6258485a21675adb7a811c3e19ebca18851533f75a7ba317950b9997fda8d1a4c8c76505c08c04b6c2cc31dc704d33da36a21273f2b388a1a706f7c3378b66d887197a525936ed9a69acb57fe7f718133da85ec742001c5d1864e9c6c8ea1b94f1c3759cebfd93b18606066c063a63be86085b7e37bdbc65f9a915bf084bb901a204533b85cd110400aed3d2c52af2b38b5b67904b0ef73d6dd7aef86adb770e2b153cd22489654dcc91730892087bb9856ae2d9f7ed1eb48f214243fe86bfe87b349ebd7c30e630e49c07b21fdabf78b7a95c8b7f969e97e3d33f2e074c63552ba64a2ded7badc05ce0ea2be6d53485f6900c7860c7aa76560376ce963d7271b9b54638a4028b573f00a0d8854bfcdb04986141568046202192263b9b67350400aaa1049dbc7943141ef590a70dcb028d730371d92ea4863de715f7f0f16d168bd3dc266c2450457d46dcbbf0b071547e5fbee7700a820c3750b236335d8d5848adb3c0da010e998908dfd93d961480084f3aea20b247034f8988eccb5546efaa35a92d0451df3aaf1aee5aa36a4c4d462c760ecd9cebcabfbe1412b1f21450f203fd126687cd486496e971a87fd9e1a8a765fe654baa219a6871ab97768596ab05c26c1aeea8f1a2c72395a58dbc12ef9640d2b95784e974a4d2d5a9b17c25fedacfe551bda52602de8f6d2e48443f5dd1a2a2a8e6a5e70ecdb88cd6e766ad9745c7ee91d78cc55c3d06536b49c3fee6c3d0b6ff0fb2bf13a314f57c953b8f4d93bf88e70418010200090502533b85cd021b0200520910a42704b92866382a47200419110200060502533b85cd000a091042ce2c64bc0ba99214b2009e26b26852c8b13b10c35768e40e78fbbb48bd084100a0c79d9ea0844fa5853dd3c85ff3ecae6f2c9dd6c557aa04008bbbc964cd65b9b8299d4ebf31f41cc7264b8cf33a00e82c5af022331fac79efc9563a822497ba012953cefe2629f1242fcdcb911dbb2315985bab060bfd58261ace3c654bdbbe2e8ed27a46e836490145c86dc7bae15c011f7e1ffc33730109b9338cd9f483e7cef3d2f396aab5bd80efb6646d7e778270ee99d934d187dd98"
-const revokedKeyHex = "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"
-const revokedSubkeyHex = "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"
-const missingCrossSignatureKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-Charset: UTF-8
-
-mQENBFMYynYBCACVOZ3/e8Bm2b9KH9QyIlHGo/i1bnkpqsgXj8tpJ2MIUOnXMMAY
-ztW7kKFLCmgVdLIC0vSoLA4yhaLcMojznh/2CcUglZeb6Ao8Gtelr//Rd5DRfPpG
-zqcfUo+m+eO1co2Orabw0tZDfGpg5p3AYl0hmxhUyYSc/xUq93xL1UJzBFgYXY54
-QsM8dgeQgFseSk/YvdP5SMx1ev+eraUyiiUtWzWrWC1TdyRa5p4UZg6Rkoppf+WJ
-QrW6BWrhAtqATHc8ozV7uJjeONjUEq24roRc/OFZdmQQGK6yrzKnnbA6MdHhqpdo
-9kWDcXYb7pSE63Lc+OBa5X2GUVvXJLS/3nrtABEBAAG0F2ludmFsaWQtc2lnbmlu
-Zy1zdWJrZXlziQEoBBMBAgASBQJTnKB5AhsBAgsHAhUIAh4BAAoJEO3UDQUIHpI/
-dN4H/idX4FQ1LIZCnpHS/oxoWQWfpRgdKAEM0qCqjMgiipJeEwSQbqjTCynuh5/R
-JlODDz85ABR06aoF4l5ebGLQWFCYifPnJZ/Yf5OYcMGtb7dIbqxWVFL9iLMO/oDL
-ioI3dotjPui5e+2hI9pVH1UHB/bZ/GvMGo6Zg0XxLPolKQODMVjpjLAQ0YJ3spew
-RAmOGre6tIvbDsMBnm8qREt7a07cBJ6XK7xjxYaZHQBiHVxyEWDa6gyANONx8duW
-/fhQ/zDTnyVM/ik6VO0Ty9BhPpcEYLFwh5c1ilFari1ta3e6qKo6ZGa9YMk/REhu
-yBHd9nTkI+0CiQUmbckUiVjDKKe5AQ0EUxjKdgEIAJcXQeP+NmuciE99YcJoffxv
-2gVLU4ZXBNHEaP0mgaJ1+tmMD089vUQAcyGRvw8jfsNsVZQIOAuRxY94aHQhIRHR
-bUzBN28ofo/AJJtfx62C15xt6fDKRV6HXYqAiygrHIpEoRLyiN69iScUsjIJeyFL
-C8wa72e8pSL6dkHoaV1N9ZH/xmrJ+k0vsgkQaAh9CzYufncDxcwkoP+aOlGtX1gP
-WwWoIbz0JwLEMPHBWvDDXQcQPQTYQyj+LGC9U6f9VZHN25E94subM1MjuT9OhN9Y
-MLfWaaIc5WyhLFyQKW2Upofn9wSFi8ubyBnv640Dfd0rVmaWv7LNTZpoZ/GbJAMA
-EQEAAYkBHwQYAQIACQUCU5ygeQIbAgAKCRDt1A0FCB6SP0zCB/sEzaVR38vpx+OQ
-MMynCBJrakiqDmUZv9xtplY7zsHSQjpd6xGflbU2n+iX99Q+nav0ETQZifNUEd4N
-1ljDGQejcTyKD6Pkg6wBL3x9/RJye7Zszazm4+toJXZ8xJ3800+BtaPoI39akYJm
-+ijzbskvN0v/j5GOFJwQO0pPRAFtdHqRs9Kf4YanxhedB4dIUblzlIJuKsxFit6N
-lgGRblagG3Vv2eBszbxzPbJjHCgVLR3RmrVezKOsZjr/2i7X+xLWIR0uD3IN1qOW
-CXQxLBizEEmSNVNxsp7KPGTLnqO3bPtqFirxS9PJLIMPTPLNBY7ZYuPNTMqVIUWF
-4artDmrG
-=7FfJ
------END PGP PUBLIC KEY BLOCK-----`
-
-const invalidCrossSignatureKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-
-mQENBFMYynYBCACVOZ3/e8Bm2b9KH9QyIlHGo/i1bnkpqsgXj8tpJ2MIUOnXMMAY
-ztW7kKFLCmgVdLIC0vSoLA4yhaLcMojznh/2CcUglZeb6Ao8Gtelr//Rd5DRfPpG
-zqcfUo+m+eO1co2Orabw0tZDfGpg5p3AYl0hmxhUyYSc/xUq93xL1UJzBFgYXY54
-QsM8dgeQgFseSk/YvdP5SMx1ev+eraUyiiUtWzWrWC1TdyRa5p4UZg6Rkoppf+WJ
-QrW6BWrhAtqATHc8ozV7uJjeONjUEq24roRc/OFZdmQQGK6yrzKnnbA6MdHhqpdo
-9kWDcXYb7pSE63Lc+OBa5X2GUVvXJLS/3nrtABEBAAG0F2ludmFsaWQtc2lnbmlu
-Zy1zdWJrZXlziQEoBBMBAgASBQJTnKB5AhsBAgsHAhUIAh4BAAoJEO3UDQUIHpI/
-dN4H/idX4FQ1LIZCnpHS/oxoWQWfpRgdKAEM0qCqjMgiipJeEwSQbqjTCynuh5/R
-JlODDz85ABR06aoF4l5ebGLQWFCYifPnJZ/Yf5OYcMGtb7dIbqxWVFL9iLMO/oDL
-ioI3dotjPui5e+2hI9pVH1UHB/bZ/GvMGo6Zg0XxLPolKQODMVjpjLAQ0YJ3spew
-RAmOGre6tIvbDsMBnm8qREt7a07cBJ6XK7xjxYaZHQBiHVxyEWDa6gyANONx8duW
-/fhQ/zDTnyVM/ik6VO0Ty9BhPpcEYLFwh5c1ilFari1ta3e6qKo6ZGa9YMk/REhu
-yBHd9nTkI+0CiQUmbckUiVjDKKe5AQ0EUxjKdgEIAIINDqlj7X6jYKc6DjwrOkjQ
-UIRWbQQar0LwmNilehmt70g5DCL1SYm9q4LcgJJ2Nhxj0/5qqsYib50OSWMcKeEe
-iRXpXzv1ObpcQtI5ithp0gR53YPXBib80t3bUzomQ5UyZqAAHzMp3BKC54/vUrSK
-FeRaxDzNLrCeyI00+LHNUtwghAqHvdNcsIf8VRumK8oTm3RmDh0TyjASWYbrt9c8
-R1Um3zuoACOVy+mEIgIzsfHq0u7dwYwJB5+KeM7ZLx+HGIYdUYzHuUE1sLwVoELh
-+SHIGHI1HDicOjzqgajShuIjj5hZTyQySVprrsLKiXS6NEwHAP20+XjayJ/R3tEA
-EQEAAYkCPgQYAQIBKAUCU5ygeQIbAsBdIAQZAQIABgUCU5ygeQAKCRCpVlnFZmhO
-52RJB/9uD1MSa0wjY6tHOIgquZcP3bHBvHmrHNMw9HR2wRCMO91ZkhrpdS3ZHtgb
-u3/55etj0FdvDo1tb8P8FGSVtO5Vcwf5APM8sbbqoi8L951Q3i7qt847lfhu6sMl
-w0LWFvPTOLHrliZHItPRjOltS1WAWfr2jUYhsU9ytaDAJmvf9DujxEOsN5G1YJep
-54JCKVCkM/y585Zcnn+yxk/XwqoNQ0/iJUT9qRrZWvoeasxhl1PQcwihCwss44A+
-YXaAt3hbk+6LEQuZoYS73yR3WHj+42tfm7YxRGeubXfgCEz/brETEWXMh4pe0vCL
-bfWrmfSPq2rDegYcAybxRQz0lF8PAAoJEO3UDQUIHpI/exkH/0vQfdHA8g/N4T6E
-i6b1CUVBAkvtdJpCATZjWPhXmShOw62gkDw306vHPilL4SCvEEi4KzG72zkp6VsB
-DSRcpxCwT4mHue+duiy53/aRMtSJ+vDfiV1Vhq+3sWAck/yUtfDU9/u4eFaiNok1
-8/Gd7reyuZt5CiJnpdPpjCwelK21l2w7sHAnJF55ITXdOxI8oG3BRKufz0z5lyDY
-s2tXYmhhQIggdgelN8LbcMhWs/PBbtUr6uZlNJG2lW1yscD4aI529VjwJlCeo745
-U7pO4eF05VViUJ2mmfoivL3tkhoTUWhx8xs8xCUcCg8DoEoSIhxtOmoTPR22Z9BL
-6LCg2mg=
-=Dhm4
------END PGP PUBLIC KEY BLOCK-----`
-
-const goodCrossSignatureKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-Version: GnuPG v1
-
-mI0EVUqeVwEEAMufHRrMPWK3gyvi0O0tABCs/oON9zV9KDZlr1a1M91ShCSFwCPo
-7r80PxdWVWcj0V5h50/CJYtpN3eE/mUIgW2z1uDYQF1OzrQ8ubrksfsJvpAhENom
-lTQEppv9mV8qhcM278teb7TX0pgrUHLYF5CfPdp1L957JLLXoQR/lwLVABEBAAG0
-E2dvb2Qtc2lnbmluZy1zdWJrZXmIuAQTAQIAIgUCVUqeVwIbAwYLCQgHAwIGFQgC
-CQoLBBYCAwECHgECF4AACgkQNRjL95IRWP69XQQAlH6+eyXJN4DZTLX78KGjHrsw
-6FCvxxClEPtPUjcJy/1KCRQmtLAt9PbbA78dvgzjDeZMZqRAwdjyJhjyg/fkU2OH
-7wq4ktjUu+dLcOBb+BFMEY+YjKZhf6EJuVfxoTVr5f82XNPbYHfTho9/OABKH6kv
-X70PaKZhbwnwij8Nts65AaIEVUqftREEAJ3WxZfqAX0bTDbQPf2CMT2IVMGDfhK7
-GyubOZgDFFjwUJQvHNvsrbeGLZ0xOBumLINyPO1amIfTgJNm1iiWFWfmnHReGcDl
-y5mpYG60Mb79Whdcer7CMm3AqYh/dW4g6IB02NwZMKoUHo3PXmFLxMKXnWyJ0clw
-R0LI/Qn509yXAKDh1SO20rqrBM+EAP2c5bfI98kyNwQAi3buu94qo3RR1ZbvfxgW
-CKXDVm6N99jdZGNK7FbRifXqzJJDLcXZKLnstnC4Sd3uyfyf1uFhmDLIQRryn5m+
-LBYHfDBPN3kdm7bsZDDq9GbTHiFZUfm/tChVKXWxkhpAmHhU/tH6GGzNSMXuIWSO
-aOz3Rqq0ED4NXyNKjdF9MiwD/i83S0ZBc0LmJYt4Z10jtH2B6tYdqnAK29uQaadx
-yZCX2scE09UIm32/w7pV77CKr1Cp/4OzAXS1tmFzQ+bX7DR+Gl8t4wxr57VeEMvl
-BGw4Vjh3X8//m3xynxycQU18Q1zJ6PkiMyPw2owZ/nss3hpSRKFJsxMLhW3fKmKr
-Ey2KiOcEGAECAAkFAlVKn7UCGwIAUgkQNRjL95IRWP5HIAQZEQIABgUCVUqftQAK
-CRD98VjDN10SqkWrAKDTpEY8D8HC02E/KVC5YUI01B30wgCgurpILm20kXEDCeHp
-C5pygfXw1DJrhAP+NyPJ4um/bU1I+rXaHHJYroYJs8YSweiNcwiHDQn0Engh/mVZ
-SqLHvbKh2dL/RXymC3+rjPvQf5cup9bPxNMa6WagdYBNAfzWGtkVISeaQW+cTEp/
-MtgVijRGXR/lGLGETPg2X3Afwn9N9bLMBkBprKgbBqU7lpaoPupxT61bL70=
-=vtbN
------END PGP PUBLIC KEY BLOCK-----`
-
-const revokedUserIDKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-
-mQENBFsgO5EBCADhREPmcjsPkXe1z7ctvyWL0S7oa9JaoGZ9oPDHFDlQxd0qlX2e
-DZJZDg0qYvVixmaULIulApq1puEsaJCn3lHUbHlb4PYKwLEywYXM28JN91KtLsz/
-uaEX2KC5WqeP40utmzkNLq+oRX/xnRMgwbO7yUNVG2UlEa6eI+xOXO3YtLdmJMBW
-ClQ066ZnOIzEo1JxnIwha1CDBMWLLfOLrg6l8InUqaXbtEBbnaIYO6fXVXELUjkx
-nmk7t/QOk0tXCy8muH9UDqJkwDUESY2l79XwBAcx9riX8vY7vwC34pm22fAUVLCJ
-x1SJx0J8bkeNp38jKM2Zd9SUQqSbfBopQ4pPABEBAAG0I0dvbGFuZyBHb3BoZXIg
-PG5vLXJlcGx5QGdvbGFuZy5jb20+iQFUBBMBCgA+FiEE5Ik5JLcNx6l6rZfw1oFy
-9I6cUoMFAlsgO5ECGwMFCQPCZwAFCwkIBwMFFQoJCAsFFgIDAQACHgECF4AACgkQ
-1oFy9I6cUoMIkwf8DNPeD23i4jRwd/pylbvxwZintZl1fSwTJW1xcOa1emXaEtX2
-depuqhP04fjlRQGfsYAQh7X9jOJxAHjTmhqFBi5sD7QvKU00cPFYbJ/JTx0B41bl
-aXnSbGhRPh63QtEZL7ACAs+shwvvojJqysx7kyVRu0EW2wqjXdHwR/SJO6nhNBa2
-DXzSiOU/SUA42mmG+5kjF8Aabq9wPwT9wjraHShEweNerNMmOqJExBOy3yFeyDpa
-XwEZFzBfOKoxFNkIaVf5GSdIUGhFECkGvBMB935khftmgR8APxdU4BE7XrXexFJU
-8RCuPXonm4WQOwTWR0vQg64pb2WKAzZ8HhwTGbQiR29sYW5nIEdvcGhlciA8cmV2
-b2tlZEBnb2xhbmcuY29tPokBNgQwAQoAIBYhBOSJOSS3Dcepeq2X8NaBcvSOnFKD
-BQJbIDv3Ah0AAAoJENaBcvSOnFKDfWMIAKhI/Tvu3h8fSUxp/gSAcduT6bC1JttG
-0lYQ5ilKB/58lBUA5CO3ZrKDKlzW3M8VEcvohVaqeTMKeoQd5rCZq8KxHn/KvN6N
-s85REfXfniCKfAbnGgVXX3kDmZ1g63pkxrFu0fDZjVDXC6vy+I0sGyI/Inro0Pzb
-tvn0QCsxjapKK15BtmSrpgHgzVqVg0cUp8vqZeKFxarYbYB2idtGRci4b9tObOK0
-BSTVFy26+I/mrFGaPrySYiy2Kz5NMEcRhjmTxJ8jSwEr2O2sUR0yjbgUAXbTxDVE
-/jg5fQZ1ACvBRQnB7LvMHcInbzjyeTM3FazkkSYQD6b97+dkWwb1iWG5AQ0EWyA7
-kQEIALkg04REDZo1JgdYV4x8HJKFS4xAYWbIva1ZPqvDNmZRUbQZR2+gpJGEwn7z
-VofGvnOYiGW56AS5j31SFf5kro1+1bZQ5iOONBng08OOo58/l1hRseIIVGB5TGSa
-PCdChKKHreJI6hS3mShxH6hdfFtiZuB45rwoaArMMsYcjaezLwKeLc396cpUwwcZ
-snLUNd1Xu5EWEF2OdFkZ2a1qYdxBvAYdQf4+1Nr+NRIx1u1NS9c8jp3PuMOkrQEi
-bNtc1v6v0Jy52mKLG4y7mC/erIkvkQBYJdxPaP7LZVaPYc3/xskcyijrJ/5ufoD8
-K71/ShtsZUXSQn9jlRaYR0EbojMAEQEAAYkBPAQYAQoAJhYhBOSJOSS3Dcepeq2X
-8NaBcvSOnFKDBQJbIDuRAhsMBQkDwmcAAAoJENaBcvSOnFKDkFMIAIt64bVZ8x7+
-TitH1bR4pgcNkaKmgKoZz6FXu80+SnbuEt2NnDyf1cLOSimSTILpwLIuv9Uft5Pb
-OraQbYt3xi9yrqdKqGLv80bxqK0NuryNkvh9yyx5WoG1iKqMj9/FjGghuPrRaT4l
-QinNAghGVkEy1+aXGFrG2DsOC1FFI51CC2WVTzZ5RwR2GpiNRfESsU1rZAUqf/2V
-yJl9bD5R4SUNy8oQmhOxi+gbhD4Ao34e4W0ilibslI/uawvCiOwlu5NGd8zv5n+U
-heiQvzkApQup5c+BhH5zFDFdKJ2CBByxw9+7QjMFI/wgLixKuE0Ob2kAokXf7RlB
-7qTZOahrETw=
-=IKnw
------END PGP PUBLIC KEY BLOCK-----`
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/compressed.go b/vendor/golang.org/x/crypto/openpgp/packet/compressed.go
deleted file mode 100644
index e8f0b5c..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/compressed.go
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"compress/bzip2"
-	"compress/flate"
-	"compress/zlib"
-	"golang.org/x/crypto/openpgp/errors"
-	"io"
-	"strconv"
-)
-
-// Compressed represents a compressed OpenPGP packet. The decompressed contents
-// will contain more OpenPGP packets. See RFC 4880, section 5.6.
-type Compressed struct {
-	Body io.Reader
-}
-
-const (
-	NoCompression      = flate.NoCompression
-	BestSpeed          = flate.BestSpeed
-	BestCompression    = flate.BestCompression
-	DefaultCompression = flate.DefaultCompression
-)
-
-// CompressionConfig contains compressor configuration settings.
-type CompressionConfig struct {
-	// Level is the compression level to use. It must be set to
-	// between -1 and 9, with -1 causing the compressor to use the
-	// default compression level, 0 causing the compressor to use
-	// no compression and 1 to 9 representing increasing (better,
-	// slower) compression levels. If Level is less than -1 or
-	// more then 9, a non-nil error will be returned during
-	// encryption. See the constants above for convenient common
-	// settings for Level.
-	Level int
-}
-
-func (c *Compressed) parse(r io.Reader) error {
-	var buf [1]byte
-	_, err := readFull(r, buf[:])
-	if err != nil {
-		return err
-	}
-
-	switch buf[0] {
-	case 1:
-		c.Body = flate.NewReader(r)
-	case 2:
-		c.Body, err = zlib.NewReader(r)
-	case 3:
-		c.Body = bzip2.NewReader(r)
-	default:
-		err = errors.UnsupportedError("unknown compression algorithm: " + strconv.Itoa(int(buf[0])))
-	}
-
-	return err
-}
-
-// compressedWriterCloser represents the serialized compression stream
-// header and the compressor. Its Close() method ensures that both the
-// compressor and serialized stream header are closed. Its Write()
-// method writes to the compressor.
-type compressedWriteCloser struct {
-	sh io.Closer      // Stream Header
-	c  io.WriteCloser // Compressor
-}
-
-func (cwc compressedWriteCloser) Write(p []byte) (int, error) {
-	return cwc.c.Write(p)
-}
-
-func (cwc compressedWriteCloser) Close() (err error) {
-	err = cwc.c.Close()
-	if err != nil {
-		return err
-	}
-
-	return cwc.sh.Close()
-}
-
-// SerializeCompressed serializes a compressed data packet to w and
-// returns a WriteCloser to which the literal data packets themselves
-// can be written and which MUST be closed on completion. If cc is
-// nil, sensible defaults will be used to configure the compression
-// algorithm.
-func SerializeCompressed(w io.WriteCloser, algo CompressionAlgo, cc *CompressionConfig) (literaldata io.WriteCloser, err error) {
-	compressed, err := serializeStreamHeader(w, packetTypeCompressed)
-	if err != nil {
-		return
-	}
-
-	_, err = compressed.Write([]byte{uint8(algo)})
-	if err != nil {
-		return
-	}
-
-	level := DefaultCompression
-	if cc != nil {
-		level = cc.Level
-	}
-
-	var compressor io.WriteCloser
-	switch algo {
-	case CompressionZIP:
-		compressor, err = flate.NewWriter(compressed, level)
-	case CompressionZLIB:
-		compressor, err = zlib.NewWriterLevel(compressed, level)
-	default:
-		s := strconv.Itoa(int(algo))
-		err = errors.UnsupportedError("Unsupported compression algorithm: " + s)
-	}
-	if err != nil {
-		return
-	}
-
-	literaldata = compressedWriteCloser{compressed, compressor}
-
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/compressed_test.go b/vendor/golang.org/x/crypto/openpgp/packet/compressed_test.go
deleted file mode 100644
index cb2d70b..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/compressed_test.go
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/hex"
-	"io"
-	"io/ioutil"
-	"testing"
-)
-
-func TestCompressed(t *testing.T) {
-	packet, err := Read(readerFromHex(compressedHex))
-	if err != nil {
-		t.Errorf("failed to read Compressed: %s", err)
-		return
-	}
-
-	c, ok := packet.(*Compressed)
-	if !ok {
-		t.Error("didn't find Compressed packet")
-		return
-	}
-
-	contents, err := ioutil.ReadAll(c.Body)
-	if err != nil && err != io.EOF {
-		t.Error(err)
-		return
-	}
-
-	expected, _ := hex.DecodeString(compressedExpectedHex)
-	if !bytes.Equal(expected, contents) {
-		t.Errorf("got:%x want:%x", contents, expected)
-	}
-}
-
-const compressedHex = "a3013b2d90c4e02b72e25f727e5e496a5e49b11e1700"
-const compressedExpectedHex = "cb1062004d14c8fe636f6e74656e74732e0a"
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/config.go b/vendor/golang.org/x/crypto/openpgp/packet/config.go
deleted file mode 100644
index c76eecc..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/config.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto"
-	"crypto/rand"
-	"io"
-	"time"
-)
-
-// Config collects a number of parameters along with sensible defaults.
-// A nil *Config is valid and results in all default values.
-type Config struct {
-	// Rand provides the source of entropy.
-	// If nil, the crypto/rand Reader is used.
-	Rand io.Reader
-	// DefaultHash is the default hash function to be used.
-	// If zero, SHA-256 is used.
-	DefaultHash crypto.Hash
-	// DefaultCipher is the cipher to be used.
-	// If zero, AES-128 is used.
-	DefaultCipher CipherFunction
-	// Time returns the current time as the number of seconds since the
-	// epoch. If Time is nil, time.Now is used.
-	Time func() time.Time
-	// DefaultCompressionAlgo is the compression algorithm to be
-	// applied to the plaintext before encryption. If zero, no
-	// compression is done.
-	DefaultCompressionAlgo CompressionAlgo
-	// CompressionConfig configures the compression settings.
-	CompressionConfig *CompressionConfig
-	// S2KCount is only used for symmetric encryption. It
-	// determines the strength of the passphrase stretching when
-	// the said passphrase is hashed to produce a key. S2KCount
-	// should be between 1024 and 65011712, inclusive. If Config
-	// is nil or S2KCount is 0, the value 65536 used. Not all
-	// values in the above range can be represented. S2KCount will
-	// be rounded up to the next representable value if it cannot
-	// be encoded exactly. When set, it is strongly encrouraged to
-	// use a value that is at least 65536. See RFC 4880 Section
-	// 3.7.1.3.
-	S2KCount int
-	// RSABits is the number of bits in new RSA keys made with NewEntity.
-	// If zero, then 2048 bit keys are created.
-	RSABits int
-}
-
-func (c *Config) Random() io.Reader {
-	if c == nil || c.Rand == nil {
-		return rand.Reader
-	}
-	return c.Rand
-}
-
-func (c *Config) Hash() crypto.Hash {
-	if c == nil || uint(c.DefaultHash) == 0 {
-		return crypto.SHA256
-	}
-	return c.DefaultHash
-}
-
-func (c *Config) Cipher() CipherFunction {
-	if c == nil || uint8(c.DefaultCipher) == 0 {
-		return CipherAES128
-	}
-	return c.DefaultCipher
-}
-
-func (c *Config) Now() time.Time {
-	if c == nil || c.Time == nil {
-		return time.Now()
-	}
-	return c.Time()
-}
-
-func (c *Config) Compression() CompressionAlgo {
-	if c == nil {
-		return CompressionNone
-	}
-	return c.DefaultCompressionAlgo
-}
-
-func (c *Config) PasswordHashIterations() int {
-	if c == nil || c.S2KCount == 0 {
-		return 0
-	}
-	return c.S2KCount
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key.go b/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key.go
deleted file mode 100644
index 02b372c..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key.go
+++ /dev/null
@@ -1,206 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto/rsa"
-	"encoding/binary"
-	"io"
-	"math/big"
-	"strconv"
-
-	"golang.org/x/crypto/openpgp/elgamal"
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-const encryptedKeyVersion = 3
-
-// EncryptedKey represents a public-key encrypted session key. See RFC 4880,
-// section 5.1.
-type EncryptedKey struct {
-	KeyId      uint64
-	Algo       PublicKeyAlgorithm
-	CipherFunc CipherFunction // only valid after a successful Decrypt
-	Key        []byte         // only valid after a successful Decrypt
-
-	encryptedMPI1, encryptedMPI2 parsedMPI
-}
-
-func (e *EncryptedKey) parse(r io.Reader) (err error) {
-	var buf [10]byte
-	_, err = readFull(r, buf[:])
-	if err != nil {
-		return
-	}
-	if buf[0] != encryptedKeyVersion {
-		return errors.UnsupportedError("unknown EncryptedKey version " + strconv.Itoa(int(buf[0])))
-	}
-	e.KeyId = binary.BigEndian.Uint64(buf[1:9])
-	e.Algo = PublicKeyAlgorithm(buf[9])
-	switch e.Algo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly:
-		e.encryptedMPI1.bytes, e.encryptedMPI1.bitLength, err = readMPI(r)
-		if err != nil {
-			return
-		}
-	case PubKeyAlgoElGamal:
-		e.encryptedMPI1.bytes, e.encryptedMPI1.bitLength, err = readMPI(r)
-		if err != nil {
-			return
-		}
-		e.encryptedMPI2.bytes, e.encryptedMPI2.bitLength, err = readMPI(r)
-		if err != nil {
-			return
-		}
-	}
-	_, err = consumeAll(r)
-	return
-}
-
-func checksumKeyMaterial(key []byte) uint16 {
-	var checksum uint16
-	for _, v := range key {
-		checksum += uint16(v)
-	}
-	return checksum
-}
-
-// Decrypt decrypts an encrypted session key with the given private key. The
-// private key must have been decrypted first.
-// If config is nil, sensible defaults will be used.
-func (e *EncryptedKey) Decrypt(priv *PrivateKey, config *Config) error {
-	var err error
-	var b []byte
-
-	// TODO(agl): use session key decryption routines here to avoid
-	// padding oracle attacks.
-	switch priv.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly:
-		k := priv.PrivateKey.(*rsa.PrivateKey)
-		b, err = rsa.DecryptPKCS1v15(config.Random(), k, padToKeySize(&k.PublicKey, e.encryptedMPI1.bytes))
-	case PubKeyAlgoElGamal:
-		c1 := new(big.Int).SetBytes(e.encryptedMPI1.bytes)
-		c2 := new(big.Int).SetBytes(e.encryptedMPI2.bytes)
-		b, err = elgamal.Decrypt(priv.PrivateKey.(*elgamal.PrivateKey), c1, c2)
-	default:
-		err = errors.InvalidArgumentError("cannot decrypted encrypted session key with private key of type " + strconv.Itoa(int(priv.PubKeyAlgo)))
-	}
-
-	if err != nil {
-		return err
-	}
-
-	e.CipherFunc = CipherFunction(b[0])
-	e.Key = b[1 : len(b)-2]
-	expectedChecksum := uint16(b[len(b)-2])<<8 | uint16(b[len(b)-1])
-	checksum := checksumKeyMaterial(e.Key)
-	if checksum != expectedChecksum {
-		return errors.StructuralError("EncryptedKey checksum incorrect")
-	}
-
-	return nil
-}
-
-// Serialize writes the encrypted key packet, e, to w.
-func (e *EncryptedKey) Serialize(w io.Writer) error {
-	var mpiLen int
-	switch e.Algo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly:
-		mpiLen = 2 + len(e.encryptedMPI1.bytes)
-	case PubKeyAlgoElGamal:
-		mpiLen = 2 + len(e.encryptedMPI1.bytes) + 2 + len(e.encryptedMPI2.bytes)
-	default:
-		return errors.InvalidArgumentError("don't know how to serialize encrypted key type " + strconv.Itoa(int(e.Algo)))
-	}
-
-	serializeHeader(w, packetTypeEncryptedKey, 1 /* version */ +8 /* key id */ +1 /* algo */ +mpiLen)
-
-	w.Write([]byte{encryptedKeyVersion})
-	binary.Write(w, binary.BigEndian, e.KeyId)
-	w.Write([]byte{byte(e.Algo)})
-
-	switch e.Algo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly:
-		writeMPIs(w, e.encryptedMPI1)
-	case PubKeyAlgoElGamal:
-		writeMPIs(w, e.encryptedMPI1, e.encryptedMPI2)
-	default:
-		panic("internal error")
-	}
-
-	return nil
-}
-
-// SerializeEncryptedKey serializes an encrypted key packet to w that contains
-// key, encrypted to pub.
-// If config is nil, sensible defaults will be used.
-func SerializeEncryptedKey(w io.Writer, pub *PublicKey, cipherFunc CipherFunction, key []byte, config *Config) error {
-	var buf [10]byte
-	buf[0] = encryptedKeyVersion
-	binary.BigEndian.PutUint64(buf[1:9], pub.KeyId)
-	buf[9] = byte(pub.PubKeyAlgo)
-
-	keyBlock := make([]byte, 1 /* cipher type */ +len(key)+2 /* checksum */)
-	keyBlock[0] = byte(cipherFunc)
-	copy(keyBlock[1:], key)
-	checksum := checksumKeyMaterial(key)
-	keyBlock[1+len(key)] = byte(checksum >> 8)
-	keyBlock[1+len(key)+1] = byte(checksum)
-
-	switch pub.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly:
-		return serializeEncryptedKeyRSA(w, config.Random(), buf, pub.PublicKey.(*rsa.PublicKey), keyBlock)
-	case PubKeyAlgoElGamal:
-		return serializeEncryptedKeyElGamal(w, config.Random(), buf, pub.PublicKey.(*elgamal.PublicKey), keyBlock)
-	case PubKeyAlgoDSA, PubKeyAlgoRSASignOnly:
-		return errors.InvalidArgumentError("cannot encrypt to public key of type " + strconv.Itoa(int(pub.PubKeyAlgo)))
-	}
-
-	return errors.UnsupportedError("encrypting a key to public key of type " + strconv.Itoa(int(pub.PubKeyAlgo)))
-}
-
-func serializeEncryptedKeyRSA(w io.Writer, rand io.Reader, header [10]byte, pub *rsa.PublicKey, keyBlock []byte) error {
-	cipherText, err := rsa.EncryptPKCS1v15(rand, pub, keyBlock)
-	if err != nil {
-		return errors.InvalidArgumentError("RSA encryption failed: " + err.Error())
-	}
-
-	packetLen := 10 /* header length */ + 2 /* mpi size */ + len(cipherText)
-
-	err = serializeHeader(w, packetTypeEncryptedKey, packetLen)
-	if err != nil {
-		return err
-	}
-	_, err = w.Write(header[:])
-	if err != nil {
-		return err
-	}
-	return writeMPI(w, 8*uint16(len(cipherText)), cipherText)
-}
-
-func serializeEncryptedKeyElGamal(w io.Writer, rand io.Reader, header [10]byte, pub *elgamal.PublicKey, keyBlock []byte) error {
-	c1, c2, err := elgamal.Encrypt(rand, pub, keyBlock)
-	if err != nil {
-		return errors.InvalidArgumentError("ElGamal encryption failed: " + err.Error())
-	}
-
-	packetLen := 10 /* header length */
-	packetLen += 2 /* mpi size */ + (c1.BitLen()+7)/8
-	packetLen += 2 /* mpi size */ + (c2.BitLen()+7)/8
-
-	err = serializeHeader(w, packetTypeEncryptedKey, packetLen)
-	if err != nil {
-		return err
-	}
-	_, err = w.Write(header[:])
-	if err != nil {
-		return err
-	}
-	err = writeBig(w, c1)
-	if err != nil {
-		return err
-	}
-	return writeBig(w, c2)
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key_test.go b/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key_test.go
deleted file mode 100644
index f2fcf4d..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/encrypted_key_test.go
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto/rsa"
-	"encoding/hex"
-	"fmt"
-	"math/big"
-	"testing"
-)
-
-func bigFromBase10(s string) *big.Int {
-	b, ok := new(big.Int).SetString(s, 10)
-	if !ok {
-		panic("bigFromBase10 failed")
-	}
-	return b
-}
-
-var encryptedKeyPub = rsa.PublicKey{
-	E: 65537,
-	N: bigFromBase10("115804063926007623305902631768113868327816898845124614648849934718568541074358183759250136204762053879858102352159854352727097033322663029387610959884180306668628526686121021235757016368038585212410610742029286439607686208110250133174279811431933746643015923132833417396844716207301518956640020862630546868823"),
-}
-
-var encryptedKeyRSAPriv = &rsa.PrivateKey{
-	PublicKey: encryptedKeyPub,
-	D:         bigFromBase10("32355588668219869544751561565313228297765464314098552250409557267371233892496951383426602439009993875125222579159850054973310859166139474359774543943714622292329487391199285040721944491839695981199720170366763547754915493640685849961780092241140181198779299712578774460837139360803883139311171713302987058393"),
-}
-
-var encryptedKeyPriv = &PrivateKey{
-	PublicKey: PublicKey{
-		PubKeyAlgo: PubKeyAlgoRSA,
-	},
-	PrivateKey: encryptedKeyRSAPriv,
-}
-
-func TestDecryptingEncryptedKey(t *testing.T) {
-	for i, encryptedKeyHex := range []string{
-		"c18c032a67d68660df41c70104005789d0de26b6a50c985a02a13131ca829c413a35d0e6fa8d6842599252162808ac7439c72151c8c6183e76923fe3299301414d0c25a2f06a2257db3839e7df0ec964773f6e4c4ac7ff3b48c444237166dd46ba8ff443a5410dc670cb486672fdbe7c9dfafb75b4fea83af3a204fe2a7dfa86bd20122b4f3d2646cbeecb8f7be8",
-		// MPI can be shorter than the length of the key.
-		"c18b032a67d68660df41c70103f8e520c52ae9807183c669ce26e772e482dc5d8cf60e6f59316e145be14d2e5221ee69550db1d5618a8cb002a719f1f0b9345bde21536d410ec90ba86cac37748dec7933eb7f9873873b2d61d3321d1cd44535014f6df58f7bc0c7afb5edc38e1a974428997d2f747f9a173bea9ca53079b409517d332df62d805564cffc9be6",
-	} {
-		const expectedKeyHex = "d930363f7e0308c333b9618617ea728963d8df993665ae7be1092d4926fd864b"
-
-		p, err := Read(readerFromHex(encryptedKeyHex))
-		if err != nil {
-			t.Errorf("#%d: error from Read: %s", i, err)
-			return
-		}
-		ek, ok := p.(*EncryptedKey)
-		if !ok {
-			t.Errorf("#%d: didn't parse an EncryptedKey, got %#v", i, p)
-			return
-		}
-
-		if ek.KeyId != 0x2a67d68660df41c7 || ek.Algo != PubKeyAlgoRSA {
-			t.Errorf("#%d: unexpected EncryptedKey contents: %#v", i, ek)
-			return
-		}
-
-		err = ek.Decrypt(encryptedKeyPriv, nil)
-		if err != nil {
-			t.Errorf("#%d: error from Decrypt: %s", i, err)
-			return
-		}
-
-		if ek.CipherFunc != CipherAES256 {
-			t.Errorf("#%d: unexpected EncryptedKey contents: %#v", i, ek)
-			return
-		}
-
-		keyHex := fmt.Sprintf("%x", ek.Key)
-		if keyHex != expectedKeyHex {
-			t.Errorf("#%d: bad key, got %s want %s", i, keyHex, expectedKeyHex)
-		}
-	}
-}
-
-func TestEncryptingEncryptedKey(t *testing.T) {
-	key := []byte{1, 2, 3, 4}
-	const expectedKeyHex = "01020304"
-	const keyId = 42
-
-	pub := &PublicKey{
-		PublicKey:  &encryptedKeyPub,
-		KeyId:      keyId,
-		PubKeyAlgo: PubKeyAlgoRSAEncryptOnly,
-	}
-
-	buf := new(bytes.Buffer)
-	err := SerializeEncryptedKey(buf, pub, CipherAES128, key, nil)
-	if err != nil {
-		t.Errorf("error writing encrypted key packet: %s", err)
-	}
-
-	p, err := Read(buf)
-	if err != nil {
-		t.Errorf("error from Read: %s", err)
-		return
-	}
-	ek, ok := p.(*EncryptedKey)
-	if !ok {
-		t.Errorf("didn't parse an EncryptedKey, got %#v", p)
-		return
-	}
-
-	if ek.KeyId != keyId || ek.Algo != PubKeyAlgoRSAEncryptOnly {
-		t.Errorf("unexpected EncryptedKey contents: %#v", ek)
-		return
-	}
-
-	err = ek.Decrypt(encryptedKeyPriv, nil)
-	if err != nil {
-		t.Errorf("error from Decrypt: %s", err)
-		return
-	}
-
-	if ek.CipherFunc != CipherAES128 {
-		t.Errorf("unexpected EncryptedKey contents: %#v", ek)
-		return
-	}
-
-	keyHex := fmt.Sprintf("%x", ek.Key)
-	if keyHex != expectedKeyHex {
-		t.Errorf("bad key, got %s want %s", keyHex, expectedKeyHex)
-	}
-}
-
-func TestSerializingEncryptedKey(t *testing.T) {
-	const encryptedKeyHex = "c18c032a67d68660df41c70104005789d0de26b6a50c985a02a13131ca829c413a35d0e6fa8d6842599252162808ac7439c72151c8c6183e76923fe3299301414d0c25a2f06a2257db3839e7df0ec964773f6e4c4ac7ff3b48c444237166dd46ba8ff443a5410dc670cb486672fdbe7c9dfafb75b4fea83af3a204fe2a7dfa86bd20122b4f3d2646cbeecb8f7be8"
-
-	p, err := Read(readerFromHex(encryptedKeyHex))
-	if err != nil {
-		t.Fatalf("error from Read: %s", err)
-	}
-	ek, ok := p.(*EncryptedKey)
-	if !ok {
-		t.Fatalf("didn't parse an EncryptedKey, got %#v", p)
-	}
-
-	var buf bytes.Buffer
-	ek.Serialize(&buf)
-
-	if bufHex := hex.EncodeToString(buf.Bytes()); bufHex != encryptedKeyHex {
-		t.Fatalf("serialization of encrypted key differed from original. Original was %s, but reserialized as %s", encryptedKeyHex, bufHex)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/literal.go b/vendor/golang.org/x/crypto/openpgp/packet/literal.go
deleted file mode 100644
index 1a9ec6e..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/literal.go
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"encoding/binary"
-	"io"
-)
-
-// LiteralData represents an encrypted file. See RFC 4880, section 5.9.
-type LiteralData struct {
-	IsBinary bool
-	FileName string
-	Time     uint32 // Unix epoch time. Either creation time or modification time. 0 means undefined.
-	Body     io.Reader
-}
-
-// ForEyesOnly returns whether the contents of the LiteralData have been marked
-// as especially sensitive.
-func (l *LiteralData) ForEyesOnly() bool {
-	return l.FileName == "_CONSOLE"
-}
-
-func (l *LiteralData) parse(r io.Reader) (err error) {
-	var buf [256]byte
-
-	_, err = readFull(r, buf[:2])
-	if err != nil {
-		return
-	}
-
-	l.IsBinary = buf[0] == 'b'
-	fileNameLen := int(buf[1])
-
-	_, err = readFull(r, buf[:fileNameLen])
-	if err != nil {
-		return
-	}
-
-	l.FileName = string(buf[:fileNameLen])
-
-	_, err = readFull(r, buf[:4])
-	if err != nil {
-		return
-	}
-
-	l.Time = binary.BigEndian.Uint32(buf[:4])
-	l.Body = r
-	return
-}
-
-// SerializeLiteral serializes a literal data packet to w and returns a
-// WriteCloser to which the data itself can be written and which MUST be closed
-// on completion. The fileName is truncated to 255 bytes.
-func SerializeLiteral(w io.WriteCloser, isBinary bool, fileName string, time uint32) (plaintext io.WriteCloser, err error) {
-	var buf [4]byte
-	buf[0] = 't'
-	if isBinary {
-		buf[0] = 'b'
-	}
-	if len(fileName) > 255 {
-		fileName = fileName[:255]
-	}
-	buf[1] = byte(len(fileName))
-
-	inner, err := serializeStreamHeader(w, packetTypeLiteralData)
-	if err != nil {
-		return
-	}
-
-	_, err = inner.Write(buf[:2])
-	if err != nil {
-		return
-	}
-	_, err = inner.Write([]byte(fileName))
-	if err != nil {
-		return
-	}
-	binary.BigEndian.PutUint32(buf[:], time)
-	_, err = inner.Write(buf[:])
-	if err != nil {
-		return
-	}
-
-	plaintext = inner
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/ocfb.go b/vendor/golang.org/x/crypto/openpgp/packet/ocfb.go
deleted file mode 100644
index ce2a33a..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/ocfb.go
+++ /dev/null
@@ -1,143 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// OpenPGP CFB Mode. http://tools.ietf.org/html/rfc4880#section-13.9
-
-package packet
-
-import (
-	"crypto/cipher"
-)
-
-type ocfbEncrypter struct {
-	b       cipher.Block
-	fre     []byte
-	outUsed int
-}
-
-// An OCFBResyncOption determines if the "resynchronization step" of OCFB is
-// performed.
-type OCFBResyncOption bool
-
-const (
-	OCFBResync   OCFBResyncOption = true
-	OCFBNoResync OCFBResyncOption = false
-)
-
-// NewOCFBEncrypter returns a cipher.Stream which encrypts data with OpenPGP's
-// cipher feedback mode using the given cipher.Block, and an initial amount of
-// ciphertext.  randData must be random bytes and be the same length as the
-// cipher.Block's block size. Resync determines if the "resynchronization step"
-// from RFC 4880, 13.9 step 7 is performed. Different parts of OpenPGP vary on
-// this point.
-func NewOCFBEncrypter(block cipher.Block, randData []byte, resync OCFBResyncOption) (cipher.Stream, []byte) {
-	blockSize := block.BlockSize()
-	if len(randData) != blockSize {
-		return nil, nil
-	}
-
-	x := &ocfbEncrypter{
-		b:       block,
-		fre:     make([]byte, blockSize),
-		outUsed: 0,
-	}
-	prefix := make([]byte, blockSize+2)
-
-	block.Encrypt(x.fre, x.fre)
-	for i := 0; i < blockSize; i++ {
-		prefix[i] = randData[i] ^ x.fre[i]
-	}
-
-	block.Encrypt(x.fre, prefix[:blockSize])
-	prefix[blockSize] = x.fre[0] ^ randData[blockSize-2]
-	prefix[blockSize+1] = x.fre[1] ^ randData[blockSize-1]
-
-	if resync {
-		block.Encrypt(x.fre, prefix[2:])
-	} else {
-		x.fre[0] = prefix[blockSize]
-		x.fre[1] = prefix[blockSize+1]
-		x.outUsed = 2
-	}
-	return x, prefix
-}
-
-func (x *ocfbEncrypter) XORKeyStream(dst, src []byte) {
-	for i := 0; i < len(src); i++ {
-		if x.outUsed == len(x.fre) {
-			x.b.Encrypt(x.fre, x.fre)
-			x.outUsed = 0
-		}
-
-		x.fre[x.outUsed] ^= src[i]
-		dst[i] = x.fre[x.outUsed]
-		x.outUsed++
-	}
-}
-
-type ocfbDecrypter struct {
-	b       cipher.Block
-	fre     []byte
-	outUsed int
-}
-
-// NewOCFBDecrypter returns a cipher.Stream which decrypts data with OpenPGP's
-// cipher feedback mode using the given cipher.Block. Prefix must be the first
-// blockSize + 2 bytes of the ciphertext, where blockSize is the cipher.Block's
-// block size. If an incorrect key is detected then nil is returned. On
-// successful exit, blockSize+2 bytes of decrypted data are written into
-// prefix. Resync determines if the "resynchronization step" from RFC 4880,
-// 13.9 step 7 is performed. Different parts of OpenPGP vary on this point.
-func NewOCFBDecrypter(block cipher.Block, prefix []byte, resync OCFBResyncOption) cipher.Stream {
-	blockSize := block.BlockSize()
-	if len(prefix) != blockSize+2 {
-		return nil
-	}
-
-	x := &ocfbDecrypter{
-		b:       block,
-		fre:     make([]byte, blockSize),
-		outUsed: 0,
-	}
-	prefixCopy := make([]byte, len(prefix))
-	copy(prefixCopy, prefix)
-
-	block.Encrypt(x.fre, x.fre)
-	for i := 0; i < blockSize; i++ {
-		prefixCopy[i] ^= x.fre[i]
-	}
-
-	block.Encrypt(x.fre, prefix[:blockSize])
-	prefixCopy[blockSize] ^= x.fre[0]
-	prefixCopy[blockSize+1] ^= x.fre[1]
-
-	if prefixCopy[blockSize-2] != prefixCopy[blockSize] ||
-		prefixCopy[blockSize-1] != prefixCopy[blockSize+1] {
-		return nil
-	}
-
-	if resync {
-		block.Encrypt(x.fre, prefix[2:])
-	} else {
-		x.fre[0] = prefix[blockSize]
-		x.fre[1] = prefix[blockSize+1]
-		x.outUsed = 2
-	}
-	copy(prefix, prefixCopy)
-	return x
-}
-
-func (x *ocfbDecrypter) XORKeyStream(dst, src []byte) {
-	for i := 0; i < len(src); i++ {
-		if x.outUsed == len(x.fre) {
-			x.b.Encrypt(x.fre, x.fre)
-			x.outUsed = 0
-		}
-
-		c := src[i]
-		dst[i] = x.fre[x.outUsed] ^ src[i]
-		x.fre[x.outUsed] = c
-		x.outUsed++
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go b/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go
deleted file mode 100644
index 91022c0..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/ocfb_test.go
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/rand"
-	"testing"
-)
-
-var commonKey128 = []byte{0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c}
-
-func testOCFB(t *testing.T, resync OCFBResyncOption) {
-	block, err := aes.NewCipher(commonKey128)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	plaintext := []byte("this is the plaintext, which is long enough to span several blocks.")
-	randData := make([]byte, block.BlockSize())
-	rand.Reader.Read(randData)
-	ocfb, prefix := NewOCFBEncrypter(block, randData, resync)
-	ciphertext := make([]byte, len(plaintext))
-	ocfb.XORKeyStream(ciphertext, plaintext)
-
-	ocfbdec := NewOCFBDecrypter(block, prefix, resync)
-	if ocfbdec == nil {
-		t.Errorf("NewOCFBDecrypter failed (resync: %t)", resync)
-		return
-	}
-	plaintextCopy := make([]byte, len(plaintext))
-	ocfbdec.XORKeyStream(plaintextCopy, ciphertext)
-
-	if !bytes.Equal(plaintextCopy, plaintext) {
-		t.Errorf("got: %x, want: %x (resync: %t)", plaintextCopy, plaintext, resync)
-	}
-}
-
-func TestOCFB(t *testing.T) {
-	testOCFB(t, OCFBNoResync)
-	testOCFB(t, OCFBResync)
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/one_pass_signature.go b/vendor/golang.org/x/crypto/openpgp/packet/one_pass_signature.go
deleted file mode 100644
index 1713503..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/one_pass_signature.go
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto"
-	"encoding/binary"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/s2k"
-	"io"
-	"strconv"
-)
-
-// OnePassSignature represents a one-pass signature packet. See RFC 4880,
-// section 5.4.
-type OnePassSignature struct {
-	SigType    SignatureType
-	Hash       crypto.Hash
-	PubKeyAlgo PublicKeyAlgorithm
-	KeyId      uint64
-	IsLast     bool
-}
-
-const onePassSignatureVersion = 3
-
-func (ops *OnePassSignature) parse(r io.Reader) (err error) {
-	var buf [13]byte
-
-	_, err = readFull(r, buf[:])
-	if err != nil {
-		return
-	}
-	if buf[0] != onePassSignatureVersion {
-		err = errors.UnsupportedError("one-pass-signature packet version " + strconv.Itoa(int(buf[0])))
-	}
-
-	var ok bool
-	ops.Hash, ok = s2k.HashIdToHash(buf[2])
-	if !ok {
-		return errors.UnsupportedError("hash function: " + strconv.Itoa(int(buf[2])))
-	}
-
-	ops.SigType = SignatureType(buf[1])
-	ops.PubKeyAlgo = PublicKeyAlgorithm(buf[3])
-	ops.KeyId = binary.BigEndian.Uint64(buf[4:12])
-	ops.IsLast = buf[12] != 0
-	return
-}
-
-// Serialize marshals the given OnePassSignature to w.
-func (ops *OnePassSignature) Serialize(w io.Writer) error {
-	var buf [13]byte
-	buf[0] = onePassSignatureVersion
-	buf[1] = uint8(ops.SigType)
-	var ok bool
-	buf[2], ok = s2k.HashToHashId(ops.Hash)
-	if !ok {
-		return errors.UnsupportedError("hash type: " + strconv.Itoa(int(ops.Hash)))
-	}
-	buf[3] = uint8(ops.PubKeyAlgo)
-	binary.BigEndian.PutUint64(buf[4:12], ops.KeyId)
-	if ops.IsLast {
-		buf[12] = 1
-	}
-
-	if err := serializeHeader(w, packetTypeOnePassSignature, len(buf)); err != nil {
-		return err
-	}
-	_, err := w.Write(buf[:])
-	return err
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/opaque.go b/vendor/golang.org/x/crypto/openpgp/packet/opaque.go
deleted file mode 100644
index 456d807..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/opaque.go
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-// OpaquePacket represents an OpenPGP packet as raw, unparsed data. This is
-// useful for splitting and storing the original packet contents separately,
-// handling unsupported packet types or accessing parts of the packet not yet
-// implemented by this package.
-type OpaquePacket struct {
-	// Packet type
-	Tag uint8
-	// Reason why the packet was parsed opaquely
-	Reason error
-	// Binary contents of the packet data
-	Contents []byte
-}
-
-func (op *OpaquePacket) parse(r io.Reader) (err error) {
-	op.Contents, err = ioutil.ReadAll(r)
-	return
-}
-
-// Serialize marshals the packet to a writer in its original form, including
-// the packet header.
-func (op *OpaquePacket) Serialize(w io.Writer) (err error) {
-	err = serializeHeader(w, packetType(op.Tag), len(op.Contents))
-	if err == nil {
-		_, err = w.Write(op.Contents)
-	}
-	return
-}
-
-// Parse attempts to parse the opaque contents into a structure supported by
-// this package. If the packet is not known then the result will be another
-// OpaquePacket.
-func (op *OpaquePacket) Parse() (p Packet, err error) {
-	hdr := bytes.NewBuffer(nil)
-	err = serializeHeader(hdr, packetType(op.Tag), len(op.Contents))
-	if err != nil {
-		op.Reason = err
-		return op, err
-	}
-	p, err = Read(io.MultiReader(hdr, bytes.NewBuffer(op.Contents)))
-	if err != nil {
-		op.Reason = err
-		p = op
-	}
-	return
-}
-
-// OpaqueReader reads OpaquePackets from an io.Reader.
-type OpaqueReader struct {
-	r io.Reader
-}
-
-func NewOpaqueReader(r io.Reader) *OpaqueReader {
-	return &OpaqueReader{r: r}
-}
-
-// Read the next OpaquePacket.
-func (or *OpaqueReader) Next() (op *OpaquePacket, err error) {
-	tag, _, contents, err := readHeader(or.r)
-	if err != nil {
-		return
-	}
-	op = &OpaquePacket{Tag: uint8(tag), Reason: err}
-	err = op.parse(contents)
-	if err != nil {
-		consumeAll(contents)
-	}
-	return
-}
-
-// OpaqueSubpacket represents an unparsed OpenPGP subpacket,
-// as found in signature and user attribute packets.
-type OpaqueSubpacket struct {
-	SubType  uint8
-	Contents []byte
-}
-
-// OpaqueSubpackets extracts opaque, unparsed OpenPGP subpackets from
-// their byte representation.
-func OpaqueSubpackets(contents []byte) (result []*OpaqueSubpacket, err error) {
-	var (
-		subHeaderLen int
-		subPacket    *OpaqueSubpacket
-	)
-	for len(contents) > 0 {
-		subHeaderLen, subPacket, err = nextSubpacket(contents)
-		if err != nil {
-			break
-		}
-		result = append(result, subPacket)
-		contents = contents[subHeaderLen+len(subPacket.Contents):]
-	}
-	return
-}
-
-func nextSubpacket(contents []byte) (subHeaderLen int, subPacket *OpaqueSubpacket, err error) {
-	// RFC 4880, section 5.2.3.1
-	var subLen uint32
-	if len(contents) < 1 {
-		goto Truncated
-	}
-	subPacket = &OpaqueSubpacket{}
-	switch {
-	case contents[0] < 192:
-		subHeaderLen = 2 // 1 length byte, 1 subtype byte
-		if len(contents) < subHeaderLen {
-			goto Truncated
-		}
-		subLen = uint32(contents[0])
-		contents = contents[1:]
-	case contents[0] < 255:
-		subHeaderLen = 3 // 2 length bytes, 1 subtype
-		if len(contents) < subHeaderLen {
-			goto Truncated
-		}
-		subLen = uint32(contents[0]-192)<<8 + uint32(contents[1]) + 192
-		contents = contents[2:]
-	default:
-		subHeaderLen = 6 // 5 length bytes, 1 subtype
-		if len(contents) < subHeaderLen {
-			goto Truncated
-		}
-		subLen = uint32(contents[1])<<24 |
-			uint32(contents[2])<<16 |
-			uint32(contents[3])<<8 |
-			uint32(contents[4])
-		contents = contents[5:]
-	}
-	if subLen > uint32(len(contents)) || subLen == 0 {
-		goto Truncated
-	}
-	subPacket.SubType = contents[0]
-	subPacket.Contents = contents[1:subLen]
-	return
-Truncated:
-	err = errors.StructuralError("subpacket truncated")
-	return
-}
-
-func (osp *OpaqueSubpacket) Serialize(w io.Writer) (err error) {
-	buf := make([]byte, 6)
-	n := serializeSubpacketLength(buf, len(osp.Contents)+1)
-	buf[n] = osp.SubType
-	if _, err = w.Write(buf[:n+1]); err != nil {
-		return
-	}
-	_, err = w.Write(osp.Contents)
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/opaque_test.go b/vendor/golang.org/x/crypto/openpgp/packet/opaque_test.go
deleted file mode 100644
index f27bbfe..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/opaque_test.go
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/hex"
-	"io"
-	"testing"
-)
-
-// Test packet.Read error handling in OpaquePacket.Parse,
-// which attempts to re-read an OpaquePacket as a supported
-// Packet type.
-func TestOpaqueParseReason(t *testing.T) {
-	buf, err := hex.DecodeString(UnsupportedKeyHex)
-	if err != nil {
-		t.Fatal(err)
-	}
-	or := NewOpaqueReader(bytes.NewBuffer(buf))
-	count := 0
-	badPackets := 0
-	var uid *UserId
-	for {
-		op, err := or.Next()
-		if err == io.EOF {
-			break
-		} else if err != nil {
-			t.Errorf("#%d: opaque read error: %v", count, err)
-			break
-		}
-		// try to parse opaque packet
-		p, err := op.Parse()
-		switch pkt := p.(type) {
-		case *UserId:
-			uid = pkt
-		case *OpaquePacket:
-			// If an OpaquePacket can't re-parse, packet.Read
-			// certainly had its reasons.
-			if pkt.Reason == nil {
-				t.Errorf("#%d: opaque packet, no reason", count)
-			} else {
-				badPackets++
-			}
-		}
-		count++
-	}
-
-	const expectedBad = 3
-	// Test post-conditions, make sure we actually parsed packets as expected.
-	if badPackets != expectedBad {
-		t.Errorf("unexpected # unparseable packets: %d (want %d)", badPackets, expectedBad)
-	}
-	if uid == nil {
-		t.Errorf("failed to find expected UID in unsupported keyring")
-	} else if uid.Id != "Armin M. Warda <warda@nephilim.ruhr.de>" {
-		t.Errorf("unexpected UID: %v", uid.Id)
-	}
-}
-
-// This key material has public key and signature packet versions modified to
-// an unsupported value (1), so that trying to parse the OpaquePacket to
-// a typed packet will get an error. It also contains a GnuPG trust packet.
-// (Created with: od -An -t x1 pubring.gpg | xargs | sed 's/ //g')
-const UnsupportedKeyHex = `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`
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/packet.go b/vendor/golang.org/x/crypto/openpgp/packet/packet.go
deleted file mode 100644
index 625bb5a..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/packet.go
+++ /dev/null
@@ -1,549 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package packet implements parsing and serialization of OpenPGP packets, as
-// specified in RFC 4880.
-package packet // import "golang.org/x/crypto/openpgp/packet"
-
-import (
-	"bufio"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/des"
-	"crypto/rsa"
-	"io"
-	"math/big"
-
-	"golang.org/x/crypto/cast5"
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-// readFull is the same as io.ReadFull except that reading zero bytes returns
-// ErrUnexpectedEOF rather than EOF.
-func readFull(r io.Reader, buf []byte) (n int, err error) {
-	n, err = io.ReadFull(r, buf)
-	if err == io.EOF {
-		err = io.ErrUnexpectedEOF
-	}
-	return
-}
-
-// readLength reads an OpenPGP length from r. See RFC 4880, section 4.2.2.
-func readLength(r io.Reader) (length int64, isPartial bool, err error) {
-	var buf [4]byte
-	_, err = readFull(r, buf[:1])
-	if err != nil {
-		return
-	}
-	switch {
-	case buf[0] < 192:
-		length = int64(buf[0])
-	case buf[0] < 224:
-		length = int64(buf[0]-192) << 8
-		_, err = readFull(r, buf[0:1])
-		if err != nil {
-			return
-		}
-		length += int64(buf[0]) + 192
-	case buf[0] < 255:
-		length = int64(1) << (buf[0] & 0x1f)
-		isPartial = true
-	default:
-		_, err = readFull(r, buf[0:4])
-		if err != nil {
-			return
-		}
-		length = int64(buf[0])<<24 |
-			int64(buf[1])<<16 |
-			int64(buf[2])<<8 |
-			int64(buf[3])
-	}
-	return
-}
-
-// partialLengthReader wraps an io.Reader and handles OpenPGP partial lengths.
-// The continuation lengths are parsed and removed from the stream and EOF is
-// returned at the end of the packet. See RFC 4880, section 4.2.2.4.
-type partialLengthReader struct {
-	r         io.Reader
-	remaining int64
-	isPartial bool
-}
-
-func (r *partialLengthReader) Read(p []byte) (n int, err error) {
-	for r.remaining == 0 {
-		if !r.isPartial {
-			return 0, io.EOF
-		}
-		r.remaining, r.isPartial, err = readLength(r.r)
-		if err != nil {
-			return 0, err
-		}
-	}
-
-	toRead := int64(len(p))
-	if toRead > r.remaining {
-		toRead = r.remaining
-	}
-
-	n, err = r.r.Read(p[:int(toRead)])
-	r.remaining -= int64(n)
-	if n < int(toRead) && err == io.EOF {
-		err = io.ErrUnexpectedEOF
-	}
-	return
-}
-
-// partialLengthWriter writes a stream of data using OpenPGP partial lengths.
-// See RFC 4880, section 4.2.2.4.
-type partialLengthWriter struct {
-	w          io.WriteCloser
-	lengthByte [1]byte
-}
-
-func (w *partialLengthWriter) Write(p []byte) (n int, err error) {
-	for len(p) > 0 {
-		for power := uint(14); power < 32; power-- {
-			l := 1 << power
-			if len(p) >= l {
-				w.lengthByte[0] = 224 + uint8(power)
-				_, err = w.w.Write(w.lengthByte[:])
-				if err != nil {
-					return
-				}
-				var m int
-				m, err = w.w.Write(p[:l])
-				n += m
-				if err != nil {
-					return
-				}
-				p = p[l:]
-				break
-			}
-		}
-	}
-	return
-}
-
-func (w *partialLengthWriter) Close() error {
-	w.lengthByte[0] = 0
-	_, err := w.w.Write(w.lengthByte[:])
-	if err != nil {
-		return err
-	}
-	return w.w.Close()
-}
-
-// A spanReader is an io.LimitReader, but it returns ErrUnexpectedEOF if the
-// underlying Reader returns EOF before the limit has been reached.
-type spanReader struct {
-	r io.Reader
-	n int64
-}
-
-func (l *spanReader) Read(p []byte) (n int, err error) {
-	if l.n <= 0 {
-		return 0, io.EOF
-	}
-	if int64(len(p)) > l.n {
-		p = p[0:l.n]
-	}
-	n, err = l.r.Read(p)
-	l.n -= int64(n)
-	if l.n > 0 && err == io.EOF {
-		err = io.ErrUnexpectedEOF
-	}
-	return
-}
-
-// readHeader parses a packet header and returns an io.Reader which will return
-// the contents of the packet. See RFC 4880, section 4.2.
-func readHeader(r io.Reader) (tag packetType, length int64, contents io.Reader, err error) {
-	var buf [4]byte
-	_, err = io.ReadFull(r, buf[:1])
-	if err != nil {
-		return
-	}
-	if buf[0]&0x80 == 0 {
-		err = errors.StructuralError("tag byte does not have MSB set")
-		return
-	}
-	if buf[0]&0x40 == 0 {
-		// Old format packet
-		tag = packetType((buf[0] & 0x3f) >> 2)
-		lengthType := buf[0] & 3
-		if lengthType == 3 {
-			length = -1
-			contents = r
-			return
-		}
-		lengthBytes := 1 << lengthType
-		_, err = readFull(r, buf[0:lengthBytes])
-		if err != nil {
-			return
-		}
-		for i := 0; i < lengthBytes; i++ {
-			length <<= 8
-			length |= int64(buf[i])
-		}
-		contents = &spanReader{r, length}
-		return
-	}
-
-	// New format packet
-	tag = packetType(buf[0] & 0x3f)
-	length, isPartial, err := readLength(r)
-	if err != nil {
-		return
-	}
-	if isPartial {
-		contents = &partialLengthReader{
-			remaining: length,
-			isPartial: true,
-			r:         r,
-		}
-		length = -1
-	} else {
-		contents = &spanReader{r, length}
-	}
-	return
-}
-
-// serializeHeader writes an OpenPGP packet header to w. See RFC 4880, section
-// 4.2.
-func serializeHeader(w io.Writer, ptype packetType, length int) (err error) {
-	var buf [6]byte
-	var n int
-
-	buf[0] = 0x80 | 0x40 | byte(ptype)
-	if length < 192 {
-		buf[1] = byte(length)
-		n = 2
-	} else if length < 8384 {
-		length -= 192
-		buf[1] = 192 + byte(length>>8)
-		buf[2] = byte(length)
-		n = 3
-	} else {
-		buf[1] = 255
-		buf[2] = byte(length >> 24)
-		buf[3] = byte(length >> 16)
-		buf[4] = byte(length >> 8)
-		buf[5] = byte(length)
-		n = 6
-	}
-
-	_, err = w.Write(buf[:n])
-	return
-}
-
-// serializeStreamHeader writes an OpenPGP packet header to w where the
-// length of the packet is unknown. It returns a io.WriteCloser which can be
-// used to write the contents of the packet. See RFC 4880, section 4.2.
-func serializeStreamHeader(w io.WriteCloser, ptype packetType) (out io.WriteCloser, err error) {
-	var buf [1]byte
-	buf[0] = 0x80 | 0x40 | byte(ptype)
-	_, err = w.Write(buf[:])
-	if err != nil {
-		return
-	}
-	out = &partialLengthWriter{w: w}
-	return
-}
-
-// Packet represents an OpenPGP packet. Users are expected to try casting
-// instances of this interface to specific packet types.
-type Packet interface {
-	parse(io.Reader) error
-}
-
-// consumeAll reads from the given Reader until error, returning the number of
-// bytes read.
-func consumeAll(r io.Reader) (n int64, err error) {
-	var m int
-	var buf [1024]byte
-
-	for {
-		m, err = r.Read(buf[:])
-		n += int64(m)
-		if err == io.EOF {
-			err = nil
-			return
-		}
-		if err != nil {
-			return
-		}
-	}
-}
-
-// packetType represents the numeric ids of the different OpenPGP packet types. See
-// http://www.iana.org/assignments/pgp-parameters/pgp-parameters.xhtml#pgp-parameters-2
-type packetType uint8
-
-const (
-	packetTypeEncryptedKey              packetType = 1
-	packetTypeSignature                 packetType = 2
-	packetTypeSymmetricKeyEncrypted     packetType = 3
-	packetTypeOnePassSignature          packetType = 4
-	packetTypePrivateKey                packetType = 5
-	packetTypePublicKey                 packetType = 6
-	packetTypePrivateSubkey             packetType = 7
-	packetTypeCompressed                packetType = 8
-	packetTypeSymmetricallyEncrypted    packetType = 9
-	packetTypeLiteralData               packetType = 11
-	packetTypeUserId                    packetType = 13
-	packetTypePublicSubkey              packetType = 14
-	packetTypeUserAttribute             packetType = 17
-	packetTypeSymmetricallyEncryptedMDC packetType = 18
-)
-
-// peekVersion detects the version of a public key packet about to
-// be read. A bufio.Reader at the original position of the io.Reader
-// is returned.
-func peekVersion(r io.Reader) (bufr *bufio.Reader, ver byte, err error) {
-	bufr = bufio.NewReader(r)
-	var verBuf []byte
-	if verBuf, err = bufr.Peek(1); err != nil {
-		return
-	}
-	ver = verBuf[0]
-	return
-}
-
-// Read reads a single OpenPGP packet from the given io.Reader. If there is an
-// error parsing a packet, the whole packet is consumed from the input.
-func Read(r io.Reader) (p Packet, err error) {
-	tag, _, contents, err := readHeader(r)
-	if err != nil {
-		return
-	}
-
-	switch tag {
-	case packetTypeEncryptedKey:
-		p = new(EncryptedKey)
-	case packetTypeSignature:
-		var version byte
-		// Detect signature version
-		if contents, version, err = peekVersion(contents); err != nil {
-			return
-		}
-		if version < 4 {
-			p = new(SignatureV3)
-		} else {
-			p = new(Signature)
-		}
-	case packetTypeSymmetricKeyEncrypted:
-		p = new(SymmetricKeyEncrypted)
-	case packetTypeOnePassSignature:
-		p = new(OnePassSignature)
-	case packetTypePrivateKey, packetTypePrivateSubkey:
-		pk := new(PrivateKey)
-		if tag == packetTypePrivateSubkey {
-			pk.IsSubkey = true
-		}
-		p = pk
-	case packetTypePublicKey, packetTypePublicSubkey:
-		var version byte
-		if contents, version, err = peekVersion(contents); err != nil {
-			return
-		}
-		isSubkey := tag == packetTypePublicSubkey
-		if version < 4 {
-			p = &PublicKeyV3{IsSubkey: isSubkey}
-		} else {
-			p = &PublicKey{IsSubkey: isSubkey}
-		}
-	case packetTypeCompressed:
-		p = new(Compressed)
-	case packetTypeSymmetricallyEncrypted:
-		p = new(SymmetricallyEncrypted)
-	case packetTypeLiteralData:
-		p = new(LiteralData)
-	case packetTypeUserId:
-		p = new(UserId)
-	case packetTypeUserAttribute:
-		p = new(UserAttribute)
-	case packetTypeSymmetricallyEncryptedMDC:
-		se := new(SymmetricallyEncrypted)
-		se.MDC = true
-		p = se
-	default:
-		err = errors.UnknownPacketTypeError(tag)
-	}
-	if p != nil {
-		err = p.parse(contents)
-	}
-	if err != nil {
-		consumeAll(contents)
-	}
-	return
-}
-
-// SignatureType represents the different semantic meanings of an OpenPGP
-// signature. See RFC 4880, section 5.2.1.
-type SignatureType uint8
-
-const (
-	SigTypeBinary            SignatureType = 0
-	SigTypeText                            = 1
-	SigTypeGenericCert                     = 0x10
-	SigTypePersonaCert                     = 0x11
-	SigTypeCasualCert                      = 0x12
-	SigTypePositiveCert                    = 0x13
-	SigTypeSubkeyBinding                   = 0x18
-	SigTypePrimaryKeyBinding               = 0x19
-	SigTypeDirectSignature                 = 0x1F
-	SigTypeKeyRevocation                   = 0x20
-	SigTypeSubkeyRevocation                = 0x28
-)
-
-// PublicKeyAlgorithm represents the different public key system specified for
-// OpenPGP. See
-// http://www.iana.org/assignments/pgp-parameters/pgp-parameters.xhtml#pgp-parameters-12
-type PublicKeyAlgorithm uint8
-
-const (
-	PubKeyAlgoRSA            PublicKeyAlgorithm = 1
-	PubKeyAlgoRSAEncryptOnly PublicKeyAlgorithm = 2
-	PubKeyAlgoRSASignOnly    PublicKeyAlgorithm = 3
-	PubKeyAlgoElGamal        PublicKeyAlgorithm = 16
-	PubKeyAlgoDSA            PublicKeyAlgorithm = 17
-	// RFC 6637, Section 5.
-	PubKeyAlgoECDH  PublicKeyAlgorithm = 18
-	PubKeyAlgoECDSA PublicKeyAlgorithm = 19
-)
-
-// CanEncrypt returns true if it's possible to encrypt a message to a public
-// key of the given type.
-func (pka PublicKeyAlgorithm) CanEncrypt() bool {
-	switch pka {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoElGamal:
-		return true
-	}
-	return false
-}
-
-// CanSign returns true if it's possible for a public key of the given type to
-// sign a message.
-func (pka PublicKeyAlgorithm) CanSign() bool {
-	switch pka {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly, PubKeyAlgoDSA, PubKeyAlgoECDSA:
-		return true
-	}
-	return false
-}
-
-// CipherFunction represents the different block ciphers specified for OpenPGP. See
-// http://www.iana.org/assignments/pgp-parameters/pgp-parameters.xhtml#pgp-parameters-13
-type CipherFunction uint8
-
-const (
-	Cipher3DES   CipherFunction = 2
-	CipherCAST5  CipherFunction = 3
-	CipherAES128 CipherFunction = 7
-	CipherAES192 CipherFunction = 8
-	CipherAES256 CipherFunction = 9
-)
-
-// KeySize returns the key size, in bytes, of cipher.
-func (cipher CipherFunction) KeySize() int {
-	switch cipher {
-	case Cipher3DES:
-		return 24
-	case CipherCAST5:
-		return cast5.KeySize
-	case CipherAES128:
-		return 16
-	case CipherAES192:
-		return 24
-	case CipherAES256:
-		return 32
-	}
-	return 0
-}
-
-// blockSize returns the block size, in bytes, of cipher.
-func (cipher CipherFunction) blockSize() int {
-	switch cipher {
-	case Cipher3DES:
-		return des.BlockSize
-	case CipherCAST5:
-		return 8
-	case CipherAES128, CipherAES192, CipherAES256:
-		return 16
-	}
-	return 0
-}
-
-// new returns a fresh instance of the given cipher.
-func (cipher CipherFunction) new(key []byte) (block cipher.Block) {
-	switch cipher {
-	case Cipher3DES:
-		block, _ = des.NewTripleDESCipher(key)
-	case CipherCAST5:
-		block, _ = cast5.NewCipher(key)
-	case CipherAES128, CipherAES192, CipherAES256:
-		block, _ = aes.NewCipher(key)
-	}
-	return
-}
-
-// readMPI reads a big integer from r. The bit length returned is the bit
-// length that was specified in r. This is preserved so that the integer can be
-// reserialized exactly.
-func readMPI(r io.Reader) (mpi []byte, bitLength uint16, err error) {
-	var buf [2]byte
-	_, err = readFull(r, buf[0:])
-	if err != nil {
-		return
-	}
-	bitLength = uint16(buf[0])<<8 | uint16(buf[1])
-	numBytes := (int(bitLength) + 7) / 8
-	mpi = make([]byte, numBytes)
-	_, err = readFull(r, mpi)
-	// According to RFC 4880 3.2. we should check that the MPI has no leading
-	// zeroes (at least when not an encrypted MPI?), but this implementation
-	// does generate leading zeroes, so we keep accepting them.
-	return
-}
-
-// writeMPI serializes a big integer to w.
-func writeMPI(w io.Writer, bitLength uint16, mpiBytes []byte) (err error) {
-	// Note that we can produce leading zeroes, in violation of RFC 4880 3.2.
-	// Implementations seem to be tolerant of them, and stripping them would
-	// make it complex to guarantee matching re-serialization.
-	_, err = w.Write([]byte{byte(bitLength >> 8), byte(bitLength)})
-	if err == nil {
-		_, err = w.Write(mpiBytes)
-	}
-	return
-}
-
-// writeBig serializes a *big.Int to w.
-func writeBig(w io.Writer, i *big.Int) error {
-	return writeMPI(w, uint16(i.BitLen()), i.Bytes())
-}
-
-// padToKeySize left-pads a MPI with zeroes to match the length of the
-// specified RSA public.
-func padToKeySize(pub *rsa.PublicKey, b []byte) []byte {
-	k := (pub.N.BitLen() + 7) / 8
-	if len(b) >= k {
-		return b
-	}
-	bb := make([]byte, k)
-	copy(bb[len(bb)-len(b):], b)
-	return bb
-}
-
-// CompressionAlgo Represents the different compression algorithms
-// supported by OpenPGP (except for BZIP2, which is not currently
-// supported). See Section 9.3 of RFC 4880.
-type CompressionAlgo uint8
-
-const (
-	CompressionNone CompressionAlgo = 0
-	CompressionZIP  CompressionAlgo = 1
-	CompressionZLIB CompressionAlgo = 2
-)
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/packet_test.go b/vendor/golang.org/x/crypto/openpgp/packet/packet_test.go
deleted file mode 100644
index 1dab5c3..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/packet_test.go
+++ /dev/null
@@ -1,255 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/hex"
-	"fmt"
-	"golang.org/x/crypto/openpgp/errors"
-	"io"
-	"io/ioutil"
-	"testing"
-)
-
-func TestReadFull(t *testing.T) {
-	var out [4]byte
-
-	b := bytes.NewBufferString("foo")
-	n, err := readFull(b, out[:3])
-	if n != 3 || err != nil {
-		t.Errorf("full read failed n:%d err:%s", n, err)
-	}
-
-	b = bytes.NewBufferString("foo")
-	n, err = readFull(b, out[:4])
-	if n != 3 || err != io.ErrUnexpectedEOF {
-		t.Errorf("partial read failed n:%d err:%s", n, err)
-	}
-
-	b = bytes.NewBuffer(nil)
-	n, err = readFull(b, out[:3])
-	if n != 0 || err != io.ErrUnexpectedEOF {
-		t.Errorf("empty read failed n:%d err:%s", n, err)
-	}
-}
-
-func readerFromHex(s string) io.Reader {
-	data, err := hex.DecodeString(s)
-	if err != nil {
-		panic("readerFromHex: bad input")
-	}
-	return bytes.NewBuffer(data)
-}
-
-var readLengthTests = []struct {
-	hexInput  string
-	length    int64
-	isPartial bool
-	err       error
-}{
-	{"", 0, false, io.ErrUnexpectedEOF},
-	{"1f", 31, false, nil},
-	{"c0", 0, false, io.ErrUnexpectedEOF},
-	{"c101", 256 + 1 + 192, false, nil},
-	{"e0", 1, true, nil},
-	{"e1", 2, true, nil},
-	{"e2", 4, true, nil},
-	{"ff", 0, false, io.ErrUnexpectedEOF},
-	{"ff00", 0, false, io.ErrUnexpectedEOF},
-	{"ff0000", 0, false, io.ErrUnexpectedEOF},
-	{"ff000000", 0, false, io.ErrUnexpectedEOF},
-	{"ff00000000", 0, false, nil},
-	{"ff01020304", 16909060, false, nil},
-}
-
-func TestReadLength(t *testing.T) {
-	for i, test := range readLengthTests {
-		length, isPartial, err := readLength(readerFromHex(test.hexInput))
-		if test.err != nil {
-			if err != test.err {
-				t.Errorf("%d: expected different error got:%s want:%s", i, err, test.err)
-			}
-			continue
-		}
-		if err != nil {
-			t.Errorf("%d: unexpected error: %s", i, err)
-			continue
-		}
-		if length != test.length || isPartial != test.isPartial {
-			t.Errorf("%d: bad result got:(%d,%t) want:(%d,%t)", i, length, isPartial, test.length, test.isPartial)
-		}
-	}
-}
-
-var partialLengthReaderTests = []struct {
-	hexInput  string
-	err       error
-	hexOutput string
-}{
-	{"e0", io.ErrUnexpectedEOF, ""},
-	{"e001", io.ErrUnexpectedEOF, ""},
-	{"e0010102", nil, "0102"},
-	{"ff00000000", nil, ""},
-	{"e10102e1030400", nil, "01020304"},
-	{"e101", io.ErrUnexpectedEOF, ""},
-}
-
-func TestPartialLengthReader(t *testing.T) {
-	for i, test := range partialLengthReaderTests {
-		r := &partialLengthReader{readerFromHex(test.hexInput), 0, true}
-		out, err := ioutil.ReadAll(r)
-		if test.err != nil {
-			if err != test.err {
-				t.Errorf("%d: expected different error got:%s want:%s", i, err, test.err)
-			}
-			continue
-		}
-		if err != nil {
-			t.Errorf("%d: unexpected error: %s", i, err)
-			continue
-		}
-
-		got := fmt.Sprintf("%x", out)
-		if got != test.hexOutput {
-			t.Errorf("%d: got:%s want:%s", i, test.hexOutput, got)
-		}
-	}
-}
-
-var readHeaderTests = []struct {
-	hexInput        string
-	structuralError bool
-	unexpectedEOF   bool
-	tag             int
-	length          int64
-	hexOutput       string
-}{
-	{"", false, false, 0, 0, ""},
-	{"7f", true, false, 0, 0, ""},
-
-	// Old format headers
-	{"80", false, true, 0, 0, ""},
-	{"8001", false, true, 0, 1, ""},
-	{"800102", false, false, 0, 1, "02"},
-	{"81000102", false, false, 0, 1, "02"},
-	{"820000000102", false, false, 0, 1, "02"},
-	{"860000000102", false, false, 1, 1, "02"},
-	{"83010203", false, false, 0, -1, "010203"},
-
-	// New format headers
-	{"c0", false, true, 0, 0, ""},
-	{"c000", false, false, 0, 0, ""},
-	{"c00102", false, false, 0, 1, "02"},
-	{"c0020203", false, false, 0, 2, "0203"},
-	{"c00202", false, true, 0, 2, ""},
-	{"c3020203", false, false, 3, 2, "0203"},
-}
-
-func TestReadHeader(t *testing.T) {
-	for i, test := range readHeaderTests {
-		tag, length, contents, err := readHeader(readerFromHex(test.hexInput))
-		if test.structuralError {
-			if _, ok := err.(errors.StructuralError); ok {
-				continue
-			}
-			t.Errorf("%d: expected StructuralError, got:%s", i, err)
-			continue
-		}
-		if err != nil {
-			if len(test.hexInput) == 0 && err == io.EOF {
-				continue
-			}
-			if !test.unexpectedEOF || err != io.ErrUnexpectedEOF {
-				t.Errorf("%d: unexpected error from readHeader: %s", i, err)
-			}
-			continue
-		}
-		if int(tag) != test.tag || length != test.length {
-			t.Errorf("%d: got:(%d,%d) want:(%d,%d)", i, int(tag), length, test.tag, test.length)
-			continue
-		}
-
-		body, err := ioutil.ReadAll(contents)
-		if err != nil {
-			if !test.unexpectedEOF || err != io.ErrUnexpectedEOF {
-				t.Errorf("%d: unexpected error from contents: %s", i, err)
-			}
-			continue
-		}
-		if test.unexpectedEOF {
-			t.Errorf("%d: expected ErrUnexpectedEOF from contents but got no error", i)
-			continue
-		}
-		got := fmt.Sprintf("%x", body)
-		if got != test.hexOutput {
-			t.Errorf("%d: got:%s want:%s", i, got, test.hexOutput)
-		}
-	}
-}
-
-func TestSerializeHeader(t *testing.T) {
-	tag := packetTypePublicKey
-	lengths := []int{0, 1, 2, 64, 192, 193, 8000, 8384, 8385, 10000}
-
-	for _, length := range lengths {
-		buf := bytes.NewBuffer(nil)
-		serializeHeader(buf, tag, length)
-		tag2, length2, _, err := readHeader(buf)
-		if err != nil {
-			t.Errorf("length %d, err: %s", length, err)
-		}
-		if tag2 != tag {
-			t.Errorf("length %d, tag incorrect (got %d, want %d)", length, tag2, tag)
-		}
-		if int(length2) != length {
-			t.Errorf("length %d, length incorrect (got %d)", length, length2)
-		}
-	}
-}
-
-func TestPartialLengths(t *testing.T) {
-	buf := bytes.NewBuffer(nil)
-	w := new(partialLengthWriter)
-	w.w = noOpCloser{buf}
-
-	const maxChunkSize = 64
-
-	var b [maxChunkSize]byte
-	var n uint8
-	for l := 1; l <= maxChunkSize; l++ {
-		for i := 0; i < l; i++ {
-			b[i] = n
-			n++
-		}
-		m, err := w.Write(b[:l])
-		if m != l {
-			t.Errorf("short write got: %d want: %d", m, l)
-		}
-		if err != nil {
-			t.Errorf("error from write: %s", err)
-		}
-	}
-	w.Close()
-
-	want := (maxChunkSize * (maxChunkSize + 1)) / 2
-	copyBuf := bytes.NewBuffer(nil)
-	r := &partialLengthReader{buf, 0, true}
-	m, err := io.Copy(copyBuf, r)
-	if m != int64(want) {
-		t.Errorf("short copy got: %d want: %d", m, want)
-	}
-	if err != nil {
-		t.Errorf("error from copy: %s", err)
-	}
-
-	copyBytes := copyBuf.Bytes()
-	for i := 0; i < want; i++ {
-		if copyBytes[i] != uint8(i) {
-			t.Errorf("bad pattern in copy at %d", i)
-			break
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/private_key.go b/vendor/golang.org/x/crypto/openpgp/packet/private_key.go
deleted file mode 100644
index 34734cc..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/private_key.go
+++ /dev/null
@@ -1,380 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/cipher"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/rsa"
-	"crypto/sha1"
-	"io"
-	"io/ioutil"
-	"math/big"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/elgamal"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/s2k"
-)
-
-// PrivateKey represents a possibly encrypted private key. See RFC 4880,
-// section 5.5.3.
-type PrivateKey struct {
-	PublicKey
-	Encrypted     bool // if true then the private key is unavailable until Decrypt has been called.
-	encryptedData []byte
-	cipher        CipherFunction
-	s2k           func(out, in []byte)
-	PrivateKey    interface{} // An *{rsa|dsa|ecdsa}.PrivateKey or a crypto.Signer.
-	sha1Checksum  bool
-	iv            []byte
-}
-
-func NewRSAPrivateKey(currentTime time.Time, priv *rsa.PrivateKey) *PrivateKey {
-	pk := new(PrivateKey)
-	pk.PublicKey = *NewRSAPublicKey(currentTime, &priv.PublicKey)
-	pk.PrivateKey = priv
-	return pk
-}
-
-func NewDSAPrivateKey(currentTime time.Time, priv *dsa.PrivateKey) *PrivateKey {
-	pk := new(PrivateKey)
-	pk.PublicKey = *NewDSAPublicKey(currentTime, &priv.PublicKey)
-	pk.PrivateKey = priv
-	return pk
-}
-
-func NewElGamalPrivateKey(currentTime time.Time, priv *elgamal.PrivateKey) *PrivateKey {
-	pk := new(PrivateKey)
-	pk.PublicKey = *NewElGamalPublicKey(currentTime, &priv.PublicKey)
-	pk.PrivateKey = priv
-	return pk
-}
-
-func NewECDSAPrivateKey(currentTime time.Time, priv *ecdsa.PrivateKey) *PrivateKey {
-	pk := new(PrivateKey)
-	pk.PublicKey = *NewECDSAPublicKey(currentTime, &priv.PublicKey)
-	pk.PrivateKey = priv
-	return pk
-}
-
-// NewSignerPrivateKey creates a sign-only PrivateKey from a crypto.Signer that
-// implements RSA or ECDSA.
-func NewSignerPrivateKey(currentTime time.Time, signer crypto.Signer) *PrivateKey {
-	pk := new(PrivateKey)
-	switch pubkey := signer.Public().(type) {
-	case rsa.PublicKey:
-		pk.PublicKey = *NewRSAPublicKey(currentTime, &pubkey)
-		pk.PubKeyAlgo = PubKeyAlgoRSASignOnly
-	case ecdsa.PublicKey:
-		pk.PublicKey = *NewECDSAPublicKey(currentTime, &pubkey)
-	default:
-		panic("openpgp: unknown crypto.Signer type in NewSignerPrivateKey")
-	}
-	pk.PrivateKey = signer
-	return pk
-}
-
-func (pk *PrivateKey) parse(r io.Reader) (err error) {
-	err = (&pk.PublicKey).parse(r)
-	if err != nil {
-		return
-	}
-	var buf [1]byte
-	_, err = readFull(r, buf[:])
-	if err != nil {
-		return
-	}
-
-	s2kType := buf[0]
-
-	switch s2kType {
-	case 0:
-		pk.s2k = nil
-		pk.Encrypted = false
-	case 254, 255:
-		_, err = readFull(r, buf[:])
-		if err != nil {
-			return
-		}
-		pk.cipher = CipherFunction(buf[0])
-		pk.Encrypted = true
-		pk.s2k, err = s2k.Parse(r)
-		if err != nil {
-			return
-		}
-		if s2kType == 254 {
-			pk.sha1Checksum = true
-		}
-	default:
-		return errors.UnsupportedError("deprecated s2k function in private key")
-	}
-
-	if pk.Encrypted {
-		blockSize := pk.cipher.blockSize()
-		if blockSize == 0 {
-			return errors.UnsupportedError("unsupported cipher in private key: " + strconv.Itoa(int(pk.cipher)))
-		}
-		pk.iv = make([]byte, blockSize)
-		_, err = readFull(r, pk.iv)
-		if err != nil {
-			return
-		}
-	}
-
-	pk.encryptedData, err = ioutil.ReadAll(r)
-	if err != nil {
-		return
-	}
-
-	if !pk.Encrypted {
-		return pk.parsePrivateKey(pk.encryptedData)
-	}
-
-	return
-}
-
-func mod64kHash(d []byte) uint16 {
-	var h uint16
-	for _, b := range d {
-		h += uint16(b)
-	}
-	return h
-}
-
-func (pk *PrivateKey) Serialize(w io.Writer) (err error) {
-	// TODO(agl): support encrypted private keys
-	buf := bytes.NewBuffer(nil)
-	err = pk.PublicKey.serializeWithoutHeaders(buf)
-	if err != nil {
-		return
-	}
-	buf.WriteByte(0 /* no encryption */)
-
-	privateKeyBuf := bytes.NewBuffer(nil)
-
-	switch priv := pk.PrivateKey.(type) {
-	case *rsa.PrivateKey:
-		err = serializeRSAPrivateKey(privateKeyBuf, priv)
-	case *dsa.PrivateKey:
-		err = serializeDSAPrivateKey(privateKeyBuf, priv)
-	case *elgamal.PrivateKey:
-		err = serializeElGamalPrivateKey(privateKeyBuf, priv)
-	case *ecdsa.PrivateKey:
-		err = serializeECDSAPrivateKey(privateKeyBuf, priv)
-	default:
-		err = errors.InvalidArgumentError("unknown private key type")
-	}
-	if err != nil {
-		return
-	}
-
-	ptype := packetTypePrivateKey
-	contents := buf.Bytes()
-	privateKeyBytes := privateKeyBuf.Bytes()
-	if pk.IsSubkey {
-		ptype = packetTypePrivateSubkey
-	}
-	err = serializeHeader(w, ptype, len(contents)+len(privateKeyBytes)+2)
-	if err != nil {
-		return
-	}
-	_, err = w.Write(contents)
-	if err != nil {
-		return
-	}
-	_, err = w.Write(privateKeyBytes)
-	if err != nil {
-		return
-	}
-
-	checksum := mod64kHash(privateKeyBytes)
-	var checksumBytes [2]byte
-	checksumBytes[0] = byte(checksum >> 8)
-	checksumBytes[1] = byte(checksum)
-	_, err = w.Write(checksumBytes[:])
-
-	return
-}
-
-func serializeRSAPrivateKey(w io.Writer, priv *rsa.PrivateKey) error {
-	err := writeBig(w, priv.D)
-	if err != nil {
-		return err
-	}
-	err = writeBig(w, priv.Primes[1])
-	if err != nil {
-		return err
-	}
-	err = writeBig(w, priv.Primes[0])
-	if err != nil {
-		return err
-	}
-	return writeBig(w, priv.Precomputed.Qinv)
-}
-
-func serializeDSAPrivateKey(w io.Writer, priv *dsa.PrivateKey) error {
-	return writeBig(w, priv.X)
-}
-
-func serializeElGamalPrivateKey(w io.Writer, priv *elgamal.PrivateKey) error {
-	return writeBig(w, priv.X)
-}
-
-func serializeECDSAPrivateKey(w io.Writer, priv *ecdsa.PrivateKey) error {
-	return writeBig(w, priv.D)
-}
-
-// Decrypt decrypts an encrypted private key using a passphrase.
-func (pk *PrivateKey) Decrypt(passphrase []byte) error {
-	if !pk.Encrypted {
-		return nil
-	}
-
-	key := make([]byte, pk.cipher.KeySize())
-	pk.s2k(key, passphrase)
-	block := pk.cipher.new(key)
-	cfb := cipher.NewCFBDecrypter(block, pk.iv)
-
-	data := make([]byte, len(pk.encryptedData))
-	cfb.XORKeyStream(data, pk.encryptedData)
-
-	if pk.sha1Checksum {
-		if len(data) < sha1.Size {
-			return errors.StructuralError("truncated private key data")
-		}
-		h := sha1.New()
-		h.Write(data[:len(data)-sha1.Size])
-		sum := h.Sum(nil)
-		if !bytes.Equal(sum, data[len(data)-sha1.Size:]) {
-			return errors.StructuralError("private key checksum failure")
-		}
-		data = data[:len(data)-sha1.Size]
-	} else {
-		if len(data) < 2 {
-			return errors.StructuralError("truncated private key data")
-		}
-		var sum uint16
-		for i := 0; i < len(data)-2; i++ {
-			sum += uint16(data[i])
-		}
-		if data[len(data)-2] != uint8(sum>>8) ||
-			data[len(data)-1] != uint8(sum) {
-			return errors.StructuralError("private key checksum failure")
-		}
-		data = data[:len(data)-2]
-	}
-
-	return pk.parsePrivateKey(data)
-}
-
-func (pk *PrivateKey) parsePrivateKey(data []byte) (err error) {
-	switch pk.PublicKey.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly, PubKeyAlgoRSAEncryptOnly:
-		return pk.parseRSAPrivateKey(data)
-	case PubKeyAlgoDSA:
-		return pk.parseDSAPrivateKey(data)
-	case PubKeyAlgoElGamal:
-		return pk.parseElGamalPrivateKey(data)
-	case PubKeyAlgoECDSA:
-		return pk.parseECDSAPrivateKey(data)
-	}
-	panic("impossible")
-}
-
-func (pk *PrivateKey) parseRSAPrivateKey(data []byte) (err error) {
-	rsaPub := pk.PublicKey.PublicKey.(*rsa.PublicKey)
-	rsaPriv := new(rsa.PrivateKey)
-	rsaPriv.PublicKey = *rsaPub
-
-	buf := bytes.NewBuffer(data)
-	d, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-	p, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-	q, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-
-	rsaPriv.D = new(big.Int).SetBytes(d)
-	rsaPriv.Primes = make([]*big.Int, 2)
-	rsaPriv.Primes[0] = new(big.Int).SetBytes(p)
-	rsaPriv.Primes[1] = new(big.Int).SetBytes(q)
-	if err := rsaPriv.Validate(); err != nil {
-		return err
-	}
-	rsaPriv.Precompute()
-	pk.PrivateKey = rsaPriv
-	pk.Encrypted = false
-	pk.encryptedData = nil
-
-	return nil
-}
-
-func (pk *PrivateKey) parseDSAPrivateKey(data []byte) (err error) {
-	dsaPub := pk.PublicKey.PublicKey.(*dsa.PublicKey)
-	dsaPriv := new(dsa.PrivateKey)
-	dsaPriv.PublicKey = *dsaPub
-
-	buf := bytes.NewBuffer(data)
-	x, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-
-	dsaPriv.X = new(big.Int).SetBytes(x)
-	pk.PrivateKey = dsaPriv
-	pk.Encrypted = false
-	pk.encryptedData = nil
-
-	return nil
-}
-
-func (pk *PrivateKey) parseElGamalPrivateKey(data []byte) (err error) {
-	pub := pk.PublicKey.PublicKey.(*elgamal.PublicKey)
-	priv := new(elgamal.PrivateKey)
-	priv.PublicKey = *pub
-
-	buf := bytes.NewBuffer(data)
-	x, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-
-	priv.X = new(big.Int).SetBytes(x)
-	pk.PrivateKey = priv
-	pk.Encrypted = false
-	pk.encryptedData = nil
-
-	return nil
-}
-
-func (pk *PrivateKey) parseECDSAPrivateKey(data []byte) (err error) {
-	ecdsaPub := pk.PublicKey.PublicKey.(*ecdsa.PublicKey)
-
-	buf := bytes.NewBuffer(data)
-	d, _, err := readMPI(buf)
-	if err != nil {
-		return
-	}
-
-	pk.PrivateKey = &ecdsa.PrivateKey{
-		PublicKey: *ecdsaPub,
-		D:         new(big.Int).SetBytes(d),
-	}
-	pk.Encrypted = false
-	pk.encryptedData = nil
-
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/private_key_test.go b/vendor/golang.org/x/crypto/openpgp/packet/private_key_test.go
deleted file mode 100644
index ac651d9..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/private_key_test.go
+++ /dev/null
@@ -1,270 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/hex"
-	"hash"
-	"io"
-	"testing"
-	"time"
-)
-
-var privateKeyTests = []struct {
-	privateKeyHex string
-	creationTime  time.Time
-}{
-	{
-		privKeyRSAHex,
-		time.Unix(0x4cc349a8, 0),
-	},
-	{
-		privKeyElGamalHex,
-		time.Unix(0x4df9ee1a, 0),
-	},
-}
-
-func TestPrivateKeyRead(t *testing.T) {
-	for i, test := range privateKeyTests {
-		packet, err := Read(readerFromHex(test.privateKeyHex))
-		if err != nil {
-			t.Errorf("#%d: failed to parse: %s", i, err)
-			continue
-		}
-
-		privKey := packet.(*PrivateKey)
-
-		if !privKey.Encrypted {
-			t.Errorf("#%d: private key isn't encrypted", i)
-			continue
-		}
-
-		err = privKey.Decrypt([]byte("wrong password"))
-		if err == nil {
-			t.Errorf("#%d: decrypted with incorrect key", i)
-			continue
-		}
-
-		err = privKey.Decrypt([]byte("testing"))
-		if err != nil {
-			t.Errorf("#%d: failed to decrypt: %s", i, err)
-			continue
-		}
-
-		if !privKey.CreationTime.Equal(test.creationTime) || privKey.Encrypted {
-			t.Errorf("#%d: bad result, got: %#v", i, privKey)
-		}
-	}
-}
-
-func populateHash(hashFunc crypto.Hash, msg []byte) (hash.Hash, error) {
-	h := hashFunc.New()
-	if _, err := h.Write(msg); err != nil {
-		return nil, err
-	}
-	return h, nil
-}
-
-func TestRSAPrivateKey(t *testing.T) {
-	privKeyDER, _ := hex.DecodeString(pkcs1PrivKeyHex)
-	rsaPriv, err := x509.ParsePKCS1PrivateKey(privKeyDER)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	var buf bytes.Buffer
-	if err := NewRSAPrivateKey(time.Now(), rsaPriv).Serialize(&buf); err != nil {
-		t.Fatal(err)
-	}
-
-	p, err := Read(&buf)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	priv, ok := p.(*PrivateKey)
-	if !ok {
-		t.Fatal("didn't parse private key")
-	}
-
-	sig := &Signature{
-		PubKeyAlgo: PubKeyAlgoRSA,
-		Hash:       crypto.SHA256,
-	}
-	msg := []byte("Hello World!")
-
-	h, err := populateHash(sig.Hash, msg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := sig.Sign(h, priv, nil); err != nil {
-		t.Fatal(err)
-	}
-
-	if h, err = populateHash(sig.Hash, msg); err != nil {
-		t.Fatal(err)
-	}
-	if err := priv.VerifySignature(h, sig); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestECDSAPrivateKey(t *testing.T) {
-	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	var buf bytes.Buffer
-	if err := NewECDSAPrivateKey(time.Now(), ecdsaPriv).Serialize(&buf); err != nil {
-		t.Fatal(err)
-	}
-
-	p, err := Read(&buf)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	priv, ok := p.(*PrivateKey)
-	if !ok {
-		t.Fatal("didn't parse private key")
-	}
-
-	sig := &Signature{
-		PubKeyAlgo: PubKeyAlgoECDSA,
-		Hash:       crypto.SHA256,
-	}
-	msg := []byte("Hello World!")
-
-	h, err := populateHash(sig.Hash, msg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := sig.Sign(h, priv, nil); err != nil {
-		t.Fatal(err)
-	}
-
-	if h, err = populateHash(sig.Hash, msg); err != nil {
-		t.Fatal(err)
-	}
-	if err := priv.VerifySignature(h, sig); err != nil {
-		t.Fatal(err)
-	}
-}
-
-type rsaSigner struct {
-	priv *rsa.PrivateKey
-}
-
-func (s *rsaSigner) Public() crypto.PublicKey {
-	return s.priv.PublicKey
-}
-
-func (s *rsaSigner) Sign(rand io.Reader, msg []byte, opts crypto.SignerOpts) ([]byte, error) {
-	return s.priv.Sign(rand, msg, opts)
-}
-
-func TestRSASignerPrivateKey(t *testing.T) {
-	rsaPriv, err := rsa.GenerateKey(rand.Reader, 1024)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	priv := NewSignerPrivateKey(time.Now(), &rsaSigner{rsaPriv})
-
-	if priv.PubKeyAlgo != PubKeyAlgoRSASignOnly {
-		t.Fatal("NewSignerPrivateKey should have made a sign-only RSA private key")
-	}
-
-	sig := &Signature{
-		PubKeyAlgo: PubKeyAlgoRSASignOnly,
-		Hash:       crypto.SHA256,
-	}
-	msg := []byte("Hello World!")
-
-	h, err := populateHash(sig.Hash, msg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := sig.Sign(h, priv, nil); err != nil {
-		t.Fatal(err)
-	}
-
-	if h, err = populateHash(sig.Hash, msg); err != nil {
-		t.Fatal(err)
-	}
-	if err := priv.VerifySignature(h, sig); err != nil {
-		t.Fatal(err)
-	}
-}
-
-type ecdsaSigner struct {
-	priv *ecdsa.PrivateKey
-}
-
-func (s *ecdsaSigner) Public() crypto.PublicKey {
-	return s.priv.PublicKey
-}
-
-func (s *ecdsaSigner) Sign(rand io.Reader, msg []byte, opts crypto.SignerOpts) ([]byte, error) {
-	return s.priv.Sign(rand, msg, opts)
-}
-
-func TestECDSASignerPrivateKey(t *testing.T) {
-	ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	priv := NewSignerPrivateKey(time.Now(), &ecdsaSigner{ecdsaPriv})
-
-	if priv.PubKeyAlgo != PubKeyAlgoECDSA {
-		t.Fatal("NewSignerPrivateKey should have made an ECSDA private key")
-	}
-
-	sig := &Signature{
-		PubKeyAlgo: PubKeyAlgoECDSA,
-		Hash:       crypto.SHA256,
-	}
-	msg := []byte("Hello World!")
-
-	h, err := populateHash(sig.Hash, msg)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if err := sig.Sign(h, priv, nil); err != nil {
-		t.Fatal(err)
-	}
-
-	if h, err = populateHash(sig.Hash, msg); err != nil {
-		t.Fatal(err)
-	}
-	if err := priv.VerifySignature(h, sig); err != nil {
-		t.Fatal(err)
-	}
-}
-
-func TestIssue11505(t *testing.T) {
-	// parsing a rsa private key with p or q == 1 used to panic due to a divide by zero
-	_, _ = Read(readerFromHex("9c3004303030300100000011303030000000000000010130303030303030303030303030303030303030303030303030303030303030303030303030303030303030"))
-}
-
-// Generated with `gpg --export-secret-keys "Test Key 2"`
-const privKeyRSAHex = "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"
-
-// Generated by `gpg --export-secret-keys` followed by a manual extraction of
-// the ElGamal subkey from the packets.
-const privKeyElGamalHex = "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"
-
-// pkcs1PrivKeyHex is a PKCS#1, RSA private key.
-// Generated by `openssl genrsa 1024 | openssl rsa -outform DER  | xxd -p`
-const pkcs1PrivKeyHex = "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"
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/public_key.go b/vendor/golang.org/x/crypto/openpgp/packet/public_key.go
deleted file mode 100644
index fcd5f52..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/public_key.go
+++ /dev/null
@@ -1,753 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"crypto/sha1"
-	_ "crypto/sha256"
-	_ "crypto/sha512"
-	"encoding/binary"
-	"fmt"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/elgamal"
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-var (
-	// NIST curve P-256
-	oidCurveP256 []byte = []byte{0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01, 0x07}
-	// NIST curve P-384
-	oidCurveP384 []byte = []byte{0x2B, 0x81, 0x04, 0x00, 0x22}
-	// NIST curve P-521
-	oidCurveP521 []byte = []byte{0x2B, 0x81, 0x04, 0x00, 0x23}
-)
-
-const maxOIDLength = 8
-
-// ecdsaKey stores the algorithm-specific fields for ECDSA keys.
-// as defined in RFC 6637, Section 9.
-type ecdsaKey struct {
-	// oid contains the OID byte sequence identifying the elliptic curve used
-	oid []byte
-	// p contains the elliptic curve point that represents the public key
-	p parsedMPI
-}
-
-// parseOID reads the OID for the curve as defined in RFC 6637, Section 9.
-func parseOID(r io.Reader) (oid []byte, err error) {
-	buf := make([]byte, maxOIDLength)
-	if _, err = readFull(r, buf[:1]); err != nil {
-		return
-	}
-	oidLen := buf[0]
-	if int(oidLen) > len(buf) {
-		err = errors.UnsupportedError("invalid oid length: " + strconv.Itoa(int(oidLen)))
-		return
-	}
-	oid = buf[:oidLen]
-	_, err = readFull(r, oid)
-	return
-}
-
-func (f *ecdsaKey) parse(r io.Reader) (err error) {
-	if f.oid, err = parseOID(r); err != nil {
-		return err
-	}
-	f.p.bytes, f.p.bitLength, err = readMPI(r)
-	return
-}
-
-func (f *ecdsaKey) serialize(w io.Writer) (err error) {
-	buf := make([]byte, maxOIDLength+1)
-	buf[0] = byte(len(f.oid))
-	copy(buf[1:], f.oid)
-	if _, err = w.Write(buf[:len(f.oid)+1]); err != nil {
-		return
-	}
-	return writeMPIs(w, f.p)
-}
-
-func (f *ecdsaKey) newECDSA() (*ecdsa.PublicKey, error) {
-	var c elliptic.Curve
-	if bytes.Equal(f.oid, oidCurveP256) {
-		c = elliptic.P256()
-	} else if bytes.Equal(f.oid, oidCurveP384) {
-		c = elliptic.P384()
-	} else if bytes.Equal(f.oid, oidCurveP521) {
-		c = elliptic.P521()
-	} else {
-		return nil, errors.UnsupportedError(fmt.Sprintf("unsupported oid: %x", f.oid))
-	}
-	x, y := elliptic.Unmarshal(c, f.p.bytes)
-	if x == nil {
-		return nil, errors.UnsupportedError("failed to parse EC point")
-	}
-	return &ecdsa.PublicKey{Curve: c, X: x, Y: y}, nil
-}
-
-func (f *ecdsaKey) byteLen() int {
-	return 1 + len(f.oid) + 2 + len(f.p.bytes)
-}
-
-type kdfHashFunction byte
-type kdfAlgorithm byte
-
-// ecdhKdf stores key derivation function parameters
-// used for ECDH encryption. See RFC 6637, Section 9.
-type ecdhKdf struct {
-	KdfHash kdfHashFunction
-	KdfAlgo kdfAlgorithm
-}
-
-func (f *ecdhKdf) parse(r io.Reader) (err error) {
-	buf := make([]byte, 1)
-	if _, err = readFull(r, buf); err != nil {
-		return
-	}
-	kdfLen := int(buf[0])
-	if kdfLen < 3 {
-		return errors.UnsupportedError("Unsupported ECDH KDF length: " + strconv.Itoa(kdfLen))
-	}
-	buf = make([]byte, kdfLen)
-	if _, err = readFull(r, buf); err != nil {
-		return
-	}
-	reserved := int(buf[0])
-	f.KdfHash = kdfHashFunction(buf[1])
-	f.KdfAlgo = kdfAlgorithm(buf[2])
-	if reserved != 0x01 {
-		return errors.UnsupportedError("Unsupported KDF reserved field: " + strconv.Itoa(reserved))
-	}
-	return
-}
-
-func (f *ecdhKdf) serialize(w io.Writer) (err error) {
-	buf := make([]byte, 4)
-	// See RFC 6637, Section 9, Algorithm-Specific Fields for ECDH keys.
-	buf[0] = byte(0x03) // Length of the following fields
-	buf[1] = byte(0x01) // Reserved for future extensions, must be 1 for now
-	buf[2] = byte(f.KdfHash)
-	buf[3] = byte(f.KdfAlgo)
-	_, err = w.Write(buf[:])
-	return
-}
-
-func (f *ecdhKdf) byteLen() int {
-	return 4
-}
-
-// PublicKey represents an OpenPGP public key. See RFC 4880, section 5.5.2.
-type PublicKey struct {
-	CreationTime time.Time
-	PubKeyAlgo   PublicKeyAlgorithm
-	PublicKey    interface{} // *rsa.PublicKey, *dsa.PublicKey or *ecdsa.PublicKey
-	Fingerprint  [20]byte
-	KeyId        uint64
-	IsSubkey     bool
-
-	n, e, p, q, g, y parsedMPI
-
-	// RFC 6637 fields
-	ec   *ecdsaKey
-	ecdh *ecdhKdf
-}
-
-// signingKey provides a convenient abstraction over signature verification
-// for v3 and v4 public keys.
-type signingKey interface {
-	SerializeSignaturePrefix(io.Writer)
-	serializeWithoutHeaders(io.Writer) error
-}
-
-func fromBig(n *big.Int) parsedMPI {
-	return parsedMPI{
-		bytes:     n.Bytes(),
-		bitLength: uint16(n.BitLen()),
-	}
-}
-
-// NewRSAPublicKey returns a PublicKey that wraps the given rsa.PublicKey.
-func NewRSAPublicKey(creationTime time.Time, pub *rsa.PublicKey) *PublicKey {
-	pk := &PublicKey{
-		CreationTime: creationTime,
-		PubKeyAlgo:   PubKeyAlgoRSA,
-		PublicKey:    pub,
-		n:            fromBig(pub.N),
-		e:            fromBig(big.NewInt(int64(pub.E))),
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return pk
-}
-
-// NewDSAPublicKey returns a PublicKey that wraps the given dsa.PublicKey.
-func NewDSAPublicKey(creationTime time.Time, pub *dsa.PublicKey) *PublicKey {
-	pk := &PublicKey{
-		CreationTime: creationTime,
-		PubKeyAlgo:   PubKeyAlgoDSA,
-		PublicKey:    pub,
-		p:            fromBig(pub.P),
-		q:            fromBig(pub.Q),
-		g:            fromBig(pub.G),
-		y:            fromBig(pub.Y),
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return pk
-}
-
-// NewElGamalPublicKey returns a PublicKey that wraps the given elgamal.PublicKey.
-func NewElGamalPublicKey(creationTime time.Time, pub *elgamal.PublicKey) *PublicKey {
-	pk := &PublicKey{
-		CreationTime: creationTime,
-		PubKeyAlgo:   PubKeyAlgoElGamal,
-		PublicKey:    pub,
-		p:            fromBig(pub.P),
-		g:            fromBig(pub.G),
-		y:            fromBig(pub.Y),
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return pk
-}
-
-func NewECDSAPublicKey(creationTime time.Time, pub *ecdsa.PublicKey) *PublicKey {
-	pk := &PublicKey{
-		CreationTime: creationTime,
-		PubKeyAlgo:   PubKeyAlgoECDSA,
-		PublicKey:    pub,
-		ec:           new(ecdsaKey),
-	}
-
-	switch pub.Curve {
-	case elliptic.P256():
-		pk.ec.oid = oidCurveP256
-	case elliptic.P384():
-		pk.ec.oid = oidCurveP384
-	case elliptic.P521():
-		pk.ec.oid = oidCurveP521
-	default:
-		panic("unknown elliptic curve")
-	}
-
-	pk.ec.p.bytes = elliptic.Marshal(pub.Curve, pub.X, pub.Y)
-
-	// The bit length is 3 (for the 0x04 specifying an uncompressed key)
-	// plus two field elements (for x and y), which are rounded up to the
-	// nearest byte. See https://tools.ietf.org/html/rfc6637#section-6
-	fieldBytes := (pub.Curve.Params().BitSize + 7) & ^7
-	pk.ec.p.bitLength = uint16(3 + fieldBytes + fieldBytes)
-
-	pk.setFingerPrintAndKeyId()
-	return pk
-}
-
-func (pk *PublicKey) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.5.2
-	var buf [6]byte
-	_, err = readFull(r, buf[:])
-	if err != nil {
-		return
-	}
-	if buf[0] != 4 {
-		return errors.UnsupportedError("public key version")
-	}
-	pk.CreationTime = time.Unix(int64(uint32(buf[1])<<24|uint32(buf[2])<<16|uint32(buf[3])<<8|uint32(buf[4])), 0)
-	pk.PubKeyAlgo = PublicKeyAlgorithm(buf[5])
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		err = pk.parseRSA(r)
-	case PubKeyAlgoDSA:
-		err = pk.parseDSA(r)
-	case PubKeyAlgoElGamal:
-		err = pk.parseElGamal(r)
-	case PubKeyAlgoECDSA:
-		pk.ec = new(ecdsaKey)
-		if err = pk.ec.parse(r); err != nil {
-			return err
-		}
-		pk.PublicKey, err = pk.ec.newECDSA()
-	case PubKeyAlgoECDH:
-		pk.ec = new(ecdsaKey)
-		if err = pk.ec.parse(r); err != nil {
-			return
-		}
-		pk.ecdh = new(ecdhKdf)
-		if err = pk.ecdh.parse(r); err != nil {
-			return
-		}
-		// The ECDH key is stored in an ecdsa.PublicKey for convenience.
-		pk.PublicKey, err = pk.ec.newECDSA()
-	default:
-		err = errors.UnsupportedError("public key type: " + strconv.Itoa(int(pk.PubKeyAlgo)))
-	}
-	if err != nil {
-		return
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return
-}
-
-func (pk *PublicKey) setFingerPrintAndKeyId() {
-	// RFC 4880, section 12.2
-	fingerPrint := sha1.New()
-	pk.SerializeSignaturePrefix(fingerPrint)
-	pk.serializeWithoutHeaders(fingerPrint)
-	copy(pk.Fingerprint[:], fingerPrint.Sum(nil))
-	pk.KeyId = binary.BigEndian.Uint64(pk.Fingerprint[12:20])
-}
-
-// parseRSA parses RSA public key material from the given Reader. See RFC 4880,
-// section 5.5.2.
-func (pk *PublicKey) parseRSA(r io.Reader) (err error) {
-	pk.n.bytes, pk.n.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.e.bytes, pk.e.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-
-	if len(pk.e.bytes) > 3 {
-		err = errors.UnsupportedError("large public exponent")
-		return
-	}
-	rsa := &rsa.PublicKey{
-		N: new(big.Int).SetBytes(pk.n.bytes),
-		E: 0,
-	}
-	for i := 0; i < len(pk.e.bytes); i++ {
-		rsa.E <<= 8
-		rsa.E |= int(pk.e.bytes[i])
-	}
-	pk.PublicKey = rsa
-	return
-}
-
-// parseDSA parses DSA public key material from the given Reader. See RFC 4880,
-// section 5.5.2.
-func (pk *PublicKey) parseDSA(r io.Reader) (err error) {
-	pk.p.bytes, pk.p.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.q.bytes, pk.q.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.g.bytes, pk.g.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.y.bytes, pk.y.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-
-	dsa := new(dsa.PublicKey)
-	dsa.P = new(big.Int).SetBytes(pk.p.bytes)
-	dsa.Q = new(big.Int).SetBytes(pk.q.bytes)
-	dsa.G = new(big.Int).SetBytes(pk.g.bytes)
-	dsa.Y = new(big.Int).SetBytes(pk.y.bytes)
-	pk.PublicKey = dsa
-	return
-}
-
-// parseElGamal parses ElGamal public key material from the given Reader. See
-// RFC 4880, section 5.5.2.
-func (pk *PublicKey) parseElGamal(r io.Reader) (err error) {
-	pk.p.bytes, pk.p.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.g.bytes, pk.g.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-	pk.y.bytes, pk.y.bitLength, err = readMPI(r)
-	if err != nil {
-		return
-	}
-
-	elgamal := new(elgamal.PublicKey)
-	elgamal.P = new(big.Int).SetBytes(pk.p.bytes)
-	elgamal.G = new(big.Int).SetBytes(pk.g.bytes)
-	elgamal.Y = new(big.Int).SetBytes(pk.y.bytes)
-	pk.PublicKey = elgamal
-	return
-}
-
-// SerializeSignaturePrefix writes the prefix for this public key to the given Writer.
-// The prefix is used when calculating a signature over this public key. See
-// RFC 4880, section 5.2.4.
-func (pk *PublicKey) SerializeSignaturePrefix(h io.Writer) {
-	var pLength uint16
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		pLength += 2 + uint16(len(pk.n.bytes))
-		pLength += 2 + uint16(len(pk.e.bytes))
-	case PubKeyAlgoDSA:
-		pLength += 2 + uint16(len(pk.p.bytes))
-		pLength += 2 + uint16(len(pk.q.bytes))
-		pLength += 2 + uint16(len(pk.g.bytes))
-		pLength += 2 + uint16(len(pk.y.bytes))
-	case PubKeyAlgoElGamal:
-		pLength += 2 + uint16(len(pk.p.bytes))
-		pLength += 2 + uint16(len(pk.g.bytes))
-		pLength += 2 + uint16(len(pk.y.bytes))
-	case PubKeyAlgoECDSA:
-		pLength += uint16(pk.ec.byteLen())
-	case PubKeyAlgoECDH:
-		pLength += uint16(pk.ec.byteLen())
-		pLength += uint16(pk.ecdh.byteLen())
-	default:
-		panic("unknown public key algorithm")
-	}
-	pLength += 6
-	h.Write([]byte{0x99, byte(pLength >> 8), byte(pLength)})
-	return
-}
-
-func (pk *PublicKey) Serialize(w io.Writer) (err error) {
-	length := 6 // 6 byte header
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		length += 2 + len(pk.n.bytes)
-		length += 2 + len(pk.e.bytes)
-	case PubKeyAlgoDSA:
-		length += 2 + len(pk.p.bytes)
-		length += 2 + len(pk.q.bytes)
-		length += 2 + len(pk.g.bytes)
-		length += 2 + len(pk.y.bytes)
-	case PubKeyAlgoElGamal:
-		length += 2 + len(pk.p.bytes)
-		length += 2 + len(pk.g.bytes)
-		length += 2 + len(pk.y.bytes)
-	case PubKeyAlgoECDSA:
-		length += pk.ec.byteLen()
-	case PubKeyAlgoECDH:
-		length += pk.ec.byteLen()
-		length += pk.ecdh.byteLen()
-	default:
-		panic("unknown public key algorithm")
-	}
-
-	packetType := packetTypePublicKey
-	if pk.IsSubkey {
-		packetType = packetTypePublicSubkey
-	}
-	err = serializeHeader(w, packetType, length)
-	if err != nil {
-		return
-	}
-	return pk.serializeWithoutHeaders(w)
-}
-
-// serializeWithoutHeaders marshals the PublicKey to w in the form of an
-// OpenPGP public key packet, not including the packet header.
-func (pk *PublicKey) serializeWithoutHeaders(w io.Writer) (err error) {
-	var buf [6]byte
-	buf[0] = 4
-	t := uint32(pk.CreationTime.Unix())
-	buf[1] = byte(t >> 24)
-	buf[2] = byte(t >> 16)
-	buf[3] = byte(t >> 8)
-	buf[4] = byte(t)
-	buf[5] = byte(pk.PubKeyAlgo)
-
-	_, err = w.Write(buf[:])
-	if err != nil {
-		return
-	}
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		return writeMPIs(w, pk.n, pk.e)
-	case PubKeyAlgoDSA:
-		return writeMPIs(w, pk.p, pk.q, pk.g, pk.y)
-	case PubKeyAlgoElGamal:
-		return writeMPIs(w, pk.p, pk.g, pk.y)
-	case PubKeyAlgoECDSA:
-		return pk.ec.serialize(w)
-	case PubKeyAlgoECDH:
-		if err = pk.ec.serialize(w); err != nil {
-			return
-		}
-		return pk.ecdh.serialize(w)
-	}
-	return errors.InvalidArgumentError("bad public-key algorithm")
-}
-
-// CanSign returns true iff this public key can generate signatures
-func (pk *PublicKey) CanSign() bool {
-	return pk.PubKeyAlgo != PubKeyAlgoRSAEncryptOnly && pk.PubKeyAlgo != PubKeyAlgoElGamal
-}
-
-// VerifySignature returns nil iff sig is a valid signature, made by this
-// public key, of the data hashed into signed. signed is mutated by this call.
-func (pk *PublicKey) VerifySignature(signed hash.Hash, sig *Signature) (err error) {
-	if !pk.CanSign() {
-		return errors.InvalidArgumentError("public key cannot generate signatures")
-	}
-
-	signed.Write(sig.HashSuffix)
-	hashBytes := signed.Sum(nil)
-
-	if hashBytes[0] != sig.HashTag[0] || hashBytes[1] != sig.HashTag[1] {
-		return errors.SignatureError("hash tag doesn't match")
-	}
-
-	if pk.PubKeyAlgo != sig.PubKeyAlgo {
-		return errors.InvalidArgumentError("public key and signature use different algorithms")
-	}
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		rsaPublicKey, _ := pk.PublicKey.(*rsa.PublicKey)
-		err = rsa.VerifyPKCS1v15(rsaPublicKey, sig.Hash, hashBytes, padToKeySize(rsaPublicKey, sig.RSASignature.bytes))
-		if err != nil {
-			return errors.SignatureError("RSA verification failure")
-		}
-		return nil
-	case PubKeyAlgoDSA:
-		dsaPublicKey, _ := pk.PublicKey.(*dsa.PublicKey)
-		// Need to truncate hashBytes to match FIPS 186-3 section 4.6.
-		subgroupSize := (dsaPublicKey.Q.BitLen() + 7) / 8
-		if len(hashBytes) > subgroupSize {
-			hashBytes = hashBytes[:subgroupSize]
-		}
-		if !dsa.Verify(dsaPublicKey, hashBytes, new(big.Int).SetBytes(sig.DSASigR.bytes), new(big.Int).SetBytes(sig.DSASigS.bytes)) {
-			return errors.SignatureError("DSA verification failure")
-		}
-		return nil
-	case PubKeyAlgoECDSA:
-		ecdsaPublicKey := pk.PublicKey.(*ecdsa.PublicKey)
-		if !ecdsa.Verify(ecdsaPublicKey, hashBytes, new(big.Int).SetBytes(sig.ECDSASigR.bytes), new(big.Int).SetBytes(sig.ECDSASigS.bytes)) {
-			return errors.SignatureError("ECDSA verification failure")
-		}
-		return nil
-	default:
-		return errors.SignatureError("Unsupported public key algorithm used in signature")
-	}
-}
-
-// VerifySignatureV3 returns nil iff sig is a valid signature, made by this
-// public key, of the data hashed into signed. signed is mutated by this call.
-func (pk *PublicKey) VerifySignatureV3(signed hash.Hash, sig *SignatureV3) (err error) {
-	if !pk.CanSign() {
-		return errors.InvalidArgumentError("public key cannot generate signatures")
-	}
-
-	suffix := make([]byte, 5)
-	suffix[0] = byte(sig.SigType)
-	binary.BigEndian.PutUint32(suffix[1:], uint32(sig.CreationTime.Unix()))
-	signed.Write(suffix)
-	hashBytes := signed.Sum(nil)
-
-	if hashBytes[0] != sig.HashTag[0] || hashBytes[1] != sig.HashTag[1] {
-		return errors.SignatureError("hash tag doesn't match")
-	}
-
-	if pk.PubKeyAlgo != sig.PubKeyAlgo {
-		return errors.InvalidArgumentError("public key and signature use different algorithms")
-	}
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		rsaPublicKey := pk.PublicKey.(*rsa.PublicKey)
-		if err = rsa.VerifyPKCS1v15(rsaPublicKey, sig.Hash, hashBytes, padToKeySize(rsaPublicKey, sig.RSASignature.bytes)); err != nil {
-			return errors.SignatureError("RSA verification failure")
-		}
-		return
-	case PubKeyAlgoDSA:
-		dsaPublicKey := pk.PublicKey.(*dsa.PublicKey)
-		// Need to truncate hashBytes to match FIPS 186-3 section 4.6.
-		subgroupSize := (dsaPublicKey.Q.BitLen() + 7) / 8
-		if len(hashBytes) > subgroupSize {
-			hashBytes = hashBytes[:subgroupSize]
-		}
-		if !dsa.Verify(dsaPublicKey, hashBytes, new(big.Int).SetBytes(sig.DSASigR.bytes), new(big.Int).SetBytes(sig.DSASigS.bytes)) {
-			return errors.SignatureError("DSA verification failure")
-		}
-		return nil
-	default:
-		panic("shouldn't happen")
-	}
-}
-
-// keySignatureHash returns a Hash of the message that needs to be signed for
-// pk to assert a subkey relationship to signed.
-func keySignatureHash(pk, signed signingKey, hashFunc crypto.Hash) (h hash.Hash, err error) {
-	if !hashFunc.Available() {
-		return nil, errors.UnsupportedError("hash function")
-	}
-	h = hashFunc.New()
-
-	// RFC 4880, section 5.2.4
-	pk.SerializeSignaturePrefix(h)
-	pk.serializeWithoutHeaders(h)
-	signed.SerializeSignaturePrefix(h)
-	signed.serializeWithoutHeaders(h)
-	return
-}
-
-// VerifyKeySignature returns nil iff sig is a valid signature, made by this
-// public key, of signed.
-func (pk *PublicKey) VerifyKeySignature(signed *PublicKey, sig *Signature) error {
-	h, err := keySignatureHash(pk, signed, sig.Hash)
-	if err != nil {
-		return err
-	}
-	if err = pk.VerifySignature(h, sig); err != nil {
-		return err
-	}
-
-	if sig.FlagSign {
-		// Signing subkeys must be cross-signed. See
-		// https://www.gnupg.org/faq/subkey-cross-certify.html.
-		if sig.EmbeddedSignature == nil {
-			return errors.StructuralError("signing subkey is missing cross-signature")
-		}
-		// Verify the cross-signature. This is calculated over the same
-		// data as the main signature, so we cannot just recursively
-		// call signed.VerifyKeySignature(...)
-		if h, err = keySignatureHash(pk, signed, sig.EmbeddedSignature.Hash); err != nil {
-			return errors.StructuralError("error while hashing for cross-signature: " + err.Error())
-		}
-		if err := signed.VerifySignature(h, sig.EmbeddedSignature); err != nil {
-			return errors.StructuralError("error while verifying cross-signature: " + err.Error())
-		}
-	}
-
-	return nil
-}
-
-func keyRevocationHash(pk signingKey, hashFunc crypto.Hash) (h hash.Hash, err error) {
-	if !hashFunc.Available() {
-		return nil, errors.UnsupportedError("hash function")
-	}
-	h = hashFunc.New()
-
-	// RFC 4880, section 5.2.4
-	pk.SerializeSignaturePrefix(h)
-	pk.serializeWithoutHeaders(h)
-
-	return
-}
-
-// VerifyRevocationSignature returns nil iff sig is a valid signature, made by this
-// public key.
-func (pk *PublicKey) VerifyRevocationSignature(sig *Signature) (err error) {
-	h, err := keyRevocationHash(pk, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return pk.VerifySignature(h, sig)
-}
-
-// userIdSignatureHash returns a Hash of the message that needs to be signed
-// to assert that pk is a valid key for id.
-func userIdSignatureHash(id string, pk *PublicKey, hashFunc crypto.Hash) (h hash.Hash, err error) {
-	if !hashFunc.Available() {
-		return nil, errors.UnsupportedError("hash function")
-	}
-	h = hashFunc.New()
-
-	// RFC 4880, section 5.2.4
-	pk.SerializeSignaturePrefix(h)
-	pk.serializeWithoutHeaders(h)
-
-	var buf [5]byte
-	buf[0] = 0xb4
-	buf[1] = byte(len(id) >> 24)
-	buf[2] = byte(len(id) >> 16)
-	buf[3] = byte(len(id) >> 8)
-	buf[4] = byte(len(id))
-	h.Write(buf[:])
-	h.Write([]byte(id))
-
-	return
-}
-
-// VerifyUserIdSignature returns nil iff sig is a valid signature, made by this
-// public key, that id is the identity of pub.
-func (pk *PublicKey) VerifyUserIdSignature(id string, pub *PublicKey, sig *Signature) (err error) {
-	h, err := userIdSignatureHash(id, pub, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return pk.VerifySignature(h, sig)
-}
-
-// VerifyUserIdSignatureV3 returns nil iff sig is a valid signature, made by this
-// public key, that id is the identity of pub.
-func (pk *PublicKey) VerifyUserIdSignatureV3(id string, pub *PublicKey, sig *SignatureV3) (err error) {
-	h, err := userIdSignatureV3Hash(id, pub, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return pk.VerifySignatureV3(h, sig)
-}
-
-// KeyIdString returns the public key's fingerprint in capital hex
-// (e.g. "6C7EE1B8621CC013").
-func (pk *PublicKey) KeyIdString() string {
-	return fmt.Sprintf("%X", pk.Fingerprint[12:20])
-}
-
-// KeyIdShortString returns the short form of public key's fingerprint
-// in capital hex, as shown by gpg --list-keys (e.g. "621CC013").
-func (pk *PublicKey) KeyIdShortString() string {
-	return fmt.Sprintf("%X", pk.Fingerprint[16:20])
-}
-
-// A parsedMPI is used to store the contents of a big integer, along with the
-// bit length that was specified in the original input. This allows the MPI to
-// be reserialized exactly.
-type parsedMPI struct {
-	bytes     []byte
-	bitLength uint16
-}
-
-// writeMPIs is a utility function for serializing several big integers to the
-// given Writer.
-func writeMPIs(w io.Writer, mpis ...parsedMPI) (err error) {
-	for _, mpi := range mpis {
-		err = writeMPI(w, mpi.bitLength, mpi.bytes)
-		if err != nil {
-			return
-		}
-	}
-	return
-}
-
-// BitLength returns the bit length for the given public key.
-func (pk *PublicKey) BitLength() (bitLength uint16, err error) {
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		bitLength = pk.n.bitLength
-	case PubKeyAlgoDSA:
-		bitLength = pk.p.bitLength
-	case PubKeyAlgoElGamal:
-		bitLength = pk.p.bitLength
-	default:
-		err = errors.InvalidArgumentError("bad public-key algorithm")
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/public_key_test.go b/vendor/golang.org/x/crypto/openpgp/packet/public_key_test.go
deleted file mode 100644
index 103696e..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/public_key_test.go
+++ /dev/null
@@ -1,228 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"encoding/hex"
-	"math/big"
-	"testing"
-	"time"
-)
-
-var pubKeyTests = []struct {
-	hexData        string
-	hexFingerprint string
-	creationTime   time.Time
-	pubKeyAlgo     PublicKeyAlgorithm
-	keyId          uint64
-	keyIdString    string
-	keyIdShort     string
-}{
-	{rsaPkDataHex, rsaFingerprintHex, time.Unix(0x4d3c5c10, 0), PubKeyAlgoRSA, 0xa34d7e18c20c31bb, "A34D7E18C20C31BB", "C20C31BB"},
-	{dsaPkDataHex, dsaFingerprintHex, time.Unix(0x4d432f89, 0), PubKeyAlgoDSA, 0x8e8fbe54062f19ed, "8E8FBE54062F19ED", "062F19ED"},
-	{ecdsaPkDataHex, ecdsaFingerprintHex, time.Unix(0x5071c294, 0), PubKeyAlgoECDSA, 0x43fe956c542ca00b, "43FE956C542CA00B", "542CA00B"},
-}
-
-func TestPublicKeyRead(t *testing.T) {
-	for i, test := range pubKeyTests {
-		packet, err := Read(readerFromHex(test.hexData))
-		if err != nil {
-			t.Errorf("#%d: Read error: %s", i, err)
-			continue
-		}
-		pk, ok := packet.(*PublicKey)
-		if !ok {
-			t.Errorf("#%d: failed to parse, got: %#v", i, packet)
-			continue
-		}
-		if pk.PubKeyAlgo != test.pubKeyAlgo {
-			t.Errorf("#%d: bad public key algorithm got:%x want:%x", i, pk.PubKeyAlgo, test.pubKeyAlgo)
-		}
-		if !pk.CreationTime.Equal(test.creationTime) {
-			t.Errorf("#%d: bad creation time got:%v want:%v", i, pk.CreationTime, test.creationTime)
-		}
-		expectedFingerprint, _ := hex.DecodeString(test.hexFingerprint)
-		if !bytes.Equal(expectedFingerprint, pk.Fingerprint[:]) {
-			t.Errorf("#%d: bad fingerprint got:%x want:%x", i, pk.Fingerprint[:], expectedFingerprint)
-		}
-		if pk.KeyId != test.keyId {
-			t.Errorf("#%d: bad keyid got:%x want:%x", i, pk.KeyId, test.keyId)
-		}
-		if g, e := pk.KeyIdString(), test.keyIdString; g != e {
-			t.Errorf("#%d: bad KeyIdString got:%q want:%q", i, g, e)
-		}
-		if g, e := pk.KeyIdShortString(), test.keyIdShort; g != e {
-			t.Errorf("#%d: bad KeyIdShortString got:%q want:%q", i, g, e)
-		}
-	}
-}
-
-func TestPublicKeySerialize(t *testing.T) {
-	for i, test := range pubKeyTests {
-		packet, err := Read(readerFromHex(test.hexData))
-		if err != nil {
-			t.Errorf("#%d: Read error: %s", i, err)
-			continue
-		}
-		pk, ok := packet.(*PublicKey)
-		if !ok {
-			t.Errorf("#%d: failed to parse, got: %#v", i, packet)
-			continue
-		}
-		serializeBuf := bytes.NewBuffer(nil)
-		err = pk.Serialize(serializeBuf)
-		if err != nil {
-			t.Errorf("#%d: failed to serialize: %s", i, err)
-			continue
-		}
-
-		packet, err = Read(serializeBuf)
-		if err != nil {
-			t.Errorf("#%d: Read error (from serialized data): %s", i, err)
-			continue
-		}
-		pk, ok = packet.(*PublicKey)
-		if !ok {
-			t.Errorf("#%d: failed to parse serialized data, got: %#v", i, packet)
-			continue
-		}
-	}
-}
-
-func TestEcc384Serialize(t *testing.T) {
-	r := readerFromHex(ecc384PubHex)
-	var w bytes.Buffer
-	for i := 0; i < 2; i++ {
-		// Public key
-		p, err := Read(r)
-		if err != nil {
-			t.Error(err)
-		}
-		pubkey := p.(*PublicKey)
-		if !bytes.Equal(pubkey.ec.oid, []byte{0x2b, 0x81, 0x04, 0x00, 0x22}) {
-			t.Errorf("Unexpected pubkey OID: %x", pubkey.ec.oid)
-		}
-		if !bytes.Equal(pubkey.ec.p.bytes[:5], []byte{0x04, 0xf6, 0xb8, 0xc5, 0xac}) {
-			t.Errorf("Unexpected pubkey P[:5]: %x", pubkey.ec.p.bytes)
-		}
-		if pubkey.KeyId != 0x098033880F54719F {
-			t.Errorf("Unexpected pubkey ID: %x", pubkey.KeyId)
-		}
-		err = pubkey.Serialize(&w)
-		if err != nil {
-			t.Error(err)
-		}
-		// User ID
-		p, err = Read(r)
-		if err != nil {
-			t.Error(err)
-		}
-		uid := p.(*UserId)
-		if uid.Id != "ec_dsa_dh_384 <openpgp@brainhub.org>" {
-			t.Error("Unexpected UID:", uid.Id)
-		}
-		err = uid.Serialize(&w)
-		if err != nil {
-			t.Error(err)
-		}
-		// User ID Sig
-		p, err = Read(r)
-		if err != nil {
-			t.Error(err)
-		}
-		uidSig := p.(*Signature)
-		err = pubkey.VerifyUserIdSignature(uid.Id, pubkey, uidSig)
-		if err != nil {
-			t.Error(err, ": UID")
-		}
-		err = uidSig.Serialize(&w)
-		if err != nil {
-			t.Error(err)
-		}
-		// Subkey
-		p, err = Read(r)
-		if err != nil {
-			t.Error(err)
-		}
-		subkey := p.(*PublicKey)
-		if !bytes.Equal(subkey.ec.oid, []byte{0x2b, 0x81, 0x04, 0x00, 0x22}) {
-			t.Errorf("Unexpected subkey OID: %x", subkey.ec.oid)
-		}
-		if !bytes.Equal(subkey.ec.p.bytes[:5], []byte{0x04, 0x2f, 0xaa, 0x84, 0x02}) {
-			t.Errorf("Unexpected subkey P[:5]: %x", subkey.ec.p.bytes)
-		}
-		if subkey.ecdh.KdfHash != 0x09 {
-			t.Error("Expected KDF hash function SHA384 (0x09), got", subkey.ecdh.KdfHash)
-		}
-		if subkey.ecdh.KdfAlgo != 0x09 {
-			t.Error("Expected KDF symmetric alg AES256 (0x09), got", subkey.ecdh.KdfAlgo)
-		}
-		if subkey.KeyId != 0xAA8B938F9A201946 {
-			t.Errorf("Unexpected subkey ID: %x", subkey.KeyId)
-		}
-		err = subkey.Serialize(&w)
-		if err != nil {
-			t.Error(err)
-		}
-		// Subkey Sig
-		p, err = Read(r)
-		if err != nil {
-			t.Error(err)
-		}
-		subkeySig := p.(*Signature)
-		err = pubkey.VerifyKeySignature(subkey, subkeySig)
-		if err != nil {
-			t.Error(err)
-		}
-		err = subkeySig.Serialize(&w)
-		if err != nil {
-			t.Error(err)
-		}
-		// Now read back what we've written again
-		r = bytes.NewBuffer(w.Bytes())
-		w.Reset()
-	}
-}
-
-func TestP256KeyID(t *testing.T) {
-	// Confirm that key IDs are correctly calculated for ECC keys.
-	ecdsaPub := &ecdsa.PublicKey{
-		Curve: elliptic.P256(),
-		X:     fromHex("81fbbc20eea9e8d1c3ceabb0a8185925b113d1ac42cd5c78403bd83da19235c6"),
-		Y:     fromHex("5ed6db13d91db34507d0129bf88981878d29adbf8fcd1720afdb767bb3fcaaff"),
-	}
-	pub := NewECDSAPublicKey(time.Unix(1297309478, 0), ecdsaPub)
-
-	const want = uint64(0xd01055fbcadd268e)
-	if pub.KeyId != want {
-		t.Errorf("want key ID: %x, got %x", want, pub.KeyId)
-	}
-}
-
-func fromHex(hex string) *big.Int {
-	n, ok := new(big.Int).SetString(hex, 16)
-	if !ok {
-		panic("bad hex number: " + hex)
-	}
-	return n
-}
-
-const rsaFingerprintHex = "5fb74b1d03b1e3cb31bc2f8aa34d7e18c20c31bb"
-
-const rsaPkDataHex = "988d044d3c5c10010400b1d13382944bd5aba23a4312968b5095d14f947f600eb478e14a6fcb16b0e0cac764884909c020bc495cfcc39a935387c661507bdb236a0612fb582cac3af9b29cc2c8c70090616c41b662f4da4c1201e195472eb7f4ae1ccbcbf9940fe21d985e379a5563dde5b9a23d35f1cfaa5790da3b79db26f23695107bfaca8e7b5bcd0011010001"
-
-const dsaFingerprintHex = "eece4c094db002103714c63c8e8fbe54062f19ed"
-
-const dsaPkDataHex = "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"
-
-const ecdsaFingerprintHex = "9892270b38b8980b05c8d56d43fe956c542ca00b"
-
-const ecdsaPkDataHex = "9893045071c29413052b8104002304230401f4867769cedfa52c325018896245443968e52e51d0c2df8d939949cb5b330f2921711fbee1c9b9dddb95d15cb0255e99badeddda7cc23d9ddcaacbc290969b9f24019375d61c2e4e3b36953a28d8b2bc95f78c3f1d592fb24499be348656a7b17e3963187b4361afe497bc5f9f81213f04069f8e1fb9e6a6290ae295ca1a92b894396cb4"
-
-// Source: https://sites.google.com/site/brainhub/pgpecckeys#TOC-ECC-NIST-P-384-key
-const ecc384PubHex = `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`
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3.go b/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3.go
deleted file mode 100644
index 5daf7b6..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3.go
+++ /dev/null
@@ -1,279 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto"
-	"crypto/md5"
-	"crypto/rsa"
-	"encoding/binary"
-	"fmt"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-// PublicKeyV3 represents older, version 3 public keys. These keys are less secure and
-// should not be used for signing or encrypting. They are supported here only for
-// parsing version 3 key material and validating signatures.
-// See RFC 4880, section 5.5.2.
-type PublicKeyV3 struct {
-	CreationTime time.Time
-	DaysToExpire uint16
-	PubKeyAlgo   PublicKeyAlgorithm
-	PublicKey    *rsa.PublicKey
-	Fingerprint  [16]byte
-	KeyId        uint64
-	IsSubkey     bool
-
-	n, e parsedMPI
-}
-
-// newRSAPublicKeyV3 returns a PublicKey that wraps the given rsa.PublicKey.
-// Included here for testing purposes only. RFC 4880, section 5.5.2:
-// "an implementation MUST NOT generate a V3 key, but MAY accept it."
-func newRSAPublicKeyV3(creationTime time.Time, pub *rsa.PublicKey) *PublicKeyV3 {
-	pk := &PublicKeyV3{
-		CreationTime: creationTime,
-		PublicKey:    pub,
-		n:            fromBig(pub.N),
-		e:            fromBig(big.NewInt(int64(pub.E))),
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return pk
-}
-
-func (pk *PublicKeyV3) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.5.2
-	var buf [8]byte
-	if _, err = readFull(r, buf[:]); err != nil {
-		return
-	}
-	if buf[0] < 2 || buf[0] > 3 {
-		return errors.UnsupportedError("public key version")
-	}
-	pk.CreationTime = time.Unix(int64(uint32(buf[1])<<24|uint32(buf[2])<<16|uint32(buf[3])<<8|uint32(buf[4])), 0)
-	pk.DaysToExpire = binary.BigEndian.Uint16(buf[5:7])
-	pk.PubKeyAlgo = PublicKeyAlgorithm(buf[7])
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		err = pk.parseRSA(r)
-	default:
-		err = errors.UnsupportedError("public key type: " + strconv.Itoa(int(pk.PubKeyAlgo)))
-	}
-	if err != nil {
-		return
-	}
-
-	pk.setFingerPrintAndKeyId()
-	return
-}
-
-func (pk *PublicKeyV3) setFingerPrintAndKeyId() {
-	// RFC 4880, section 12.2
-	fingerPrint := md5.New()
-	fingerPrint.Write(pk.n.bytes)
-	fingerPrint.Write(pk.e.bytes)
-	fingerPrint.Sum(pk.Fingerprint[:0])
-	pk.KeyId = binary.BigEndian.Uint64(pk.n.bytes[len(pk.n.bytes)-8:])
-}
-
-// parseRSA parses RSA public key material from the given Reader. See RFC 4880,
-// section 5.5.2.
-func (pk *PublicKeyV3) parseRSA(r io.Reader) (err error) {
-	if pk.n.bytes, pk.n.bitLength, err = readMPI(r); err != nil {
-		return
-	}
-	if pk.e.bytes, pk.e.bitLength, err = readMPI(r); err != nil {
-		return
-	}
-
-	// RFC 4880 Section 12.2 requires the low 8 bytes of the
-	// modulus to form the key id.
-	if len(pk.n.bytes) < 8 {
-		return errors.StructuralError("v3 public key modulus is too short")
-	}
-	if len(pk.e.bytes) > 3 {
-		err = errors.UnsupportedError("large public exponent")
-		return
-	}
-	rsa := &rsa.PublicKey{N: new(big.Int).SetBytes(pk.n.bytes)}
-	for i := 0; i < len(pk.e.bytes); i++ {
-		rsa.E <<= 8
-		rsa.E |= int(pk.e.bytes[i])
-	}
-	pk.PublicKey = rsa
-	return
-}
-
-// SerializeSignaturePrefix writes the prefix for this public key to the given Writer.
-// The prefix is used when calculating a signature over this public key. See
-// RFC 4880, section 5.2.4.
-func (pk *PublicKeyV3) SerializeSignaturePrefix(w io.Writer) {
-	var pLength uint16
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		pLength += 2 + uint16(len(pk.n.bytes))
-		pLength += 2 + uint16(len(pk.e.bytes))
-	default:
-		panic("unknown public key algorithm")
-	}
-	pLength += 6
-	w.Write([]byte{0x99, byte(pLength >> 8), byte(pLength)})
-	return
-}
-
-func (pk *PublicKeyV3) Serialize(w io.Writer) (err error) {
-	length := 8 // 8 byte header
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		length += 2 + len(pk.n.bytes)
-		length += 2 + len(pk.e.bytes)
-	default:
-		panic("unknown public key algorithm")
-	}
-
-	packetType := packetTypePublicKey
-	if pk.IsSubkey {
-		packetType = packetTypePublicSubkey
-	}
-	if err = serializeHeader(w, packetType, length); err != nil {
-		return
-	}
-	return pk.serializeWithoutHeaders(w)
-}
-
-// serializeWithoutHeaders marshals the PublicKey to w in the form of an
-// OpenPGP public key packet, not including the packet header.
-func (pk *PublicKeyV3) serializeWithoutHeaders(w io.Writer) (err error) {
-	var buf [8]byte
-	// Version 3
-	buf[0] = 3
-	// Creation time
-	t := uint32(pk.CreationTime.Unix())
-	buf[1] = byte(t >> 24)
-	buf[2] = byte(t >> 16)
-	buf[3] = byte(t >> 8)
-	buf[4] = byte(t)
-	// Days to expire
-	buf[5] = byte(pk.DaysToExpire >> 8)
-	buf[6] = byte(pk.DaysToExpire)
-	// Public key algorithm
-	buf[7] = byte(pk.PubKeyAlgo)
-
-	if _, err = w.Write(buf[:]); err != nil {
-		return
-	}
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		return writeMPIs(w, pk.n, pk.e)
-	}
-	return errors.InvalidArgumentError("bad public-key algorithm")
-}
-
-// CanSign returns true iff this public key can generate signatures
-func (pk *PublicKeyV3) CanSign() bool {
-	return pk.PubKeyAlgo != PubKeyAlgoRSAEncryptOnly
-}
-
-// VerifySignatureV3 returns nil iff sig is a valid signature, made by this
-// public key, of the data hashed into signed. signed is mutated by this call.
-func (pk *PublicKeyV3) VerifySignatureV3(signed hash.Hash, sig *SignatureV3) (err error) {
-	if !pk.CanSign() {
-		return errors.InvalidArgumentError("public key cannot generate signatures")
-	}
-
-	suffix := make([]byte, 5)
-	suffix[0] = byte(sig.SigType)
-	binary.BigEndian.PutUint32(suffix[1:], uint32(sig.CreationTime.Unix()))
-	signed.Write(suffix)
-	hashBytes := signed.Sum(nil)
-
-	if hashBytes[0] != sig.HashTag[0] || hashBytes[1] != sig.HashTag[1] {
-		return errors.SignatureError("hash tag doesn't match")
-	}
-
-	if pk.PubKeyAlgo != sig.PubKeyAlgo {
-		return errors.InvalidArgumentError("public key and signature use different algorithms")
-	}
-
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		if err = rsa.VerifyPKCS1v15(pk.PublicKey, sig.Hash, hashBytes, sig.RSASignature.bytes); err != nil {
-			return errors.SignatureError("RSA verification failure")
-		}
-		return
-	default:
-		// V3 public keys only support RSA.
-		panic("shouldn't happen")
-	}
-}
-
-// VerifyUserIdSignatureV3 returns nil iff sig is a valid signature, made by this
-// public key, that id is the identity of pub.
-func (pk *PublicKeyV3) VerifyUserIdSignatureV3(id string, pub *PublicKeyV3, sig *SignatureV3) (err error) {
-	h, err := userIdSignatureV3Hash(id, pk, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return pk.VerifySignatureV3(h, sig)
-}
-
-// VerifyKeySignatureV3 returns nil iff sig is a valid signature, made by this
-// public key, of signed.
-func (pk *PublicKeyV3) VerifyKeySignatureV3(signed *PublicKeyV3, sig *SignatureV3) (err error) {
-	h, err := keySignatureHash(pk, signed, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return pk.VerifySignatureV3(h, sig)
-}
-
-// userIdSignatureV3Hash returns a Hash of the message that needs to be signed
-// to assert that pk is a valid key for id.
-func userIdSignatureV3Hash(id string, pk signingKey, hfn crypto.Hash) (h hash.Hash, err error) {
-	if !hfn.Available() {
-		return nil, errors.UnsupportedError("hash function")
-	}
-	h = hfn.New()
-
-	// RFC 4880, section 5.2.4
-	pk.SerializeSignaturePrefix(h)
-	pk.serializeWithoutHeaders(h)
-
-	h.Write([]byte(id))
-
-	return
-}
-
-// KeyIdString returns the public key's fingerprint in capital hex
-// (e.g. "6C7EE1B8621CC013").
-func (pk *PublicKeyV3) KeyIdString() string {
-	return fmt.Sprintf("%X", pk.KeyId)
-}
-
-// KeyIdShortString returns the short form of public key's fingerprint
-// in capital hex, as shown by gpg --list-keys (e.g. "621CC013").
-func (pk *PublicKeyV3) KeyIdShortString() string {
-	return fmt.Sprintf("%X", pk.KeyId&0xFFFFFFFF)
-}
-
-// BitLength returns the bit length for the given public key.
-func (pk *PublicKeyV3) BitLength() (bitLength uint16, err error) {
-	switch pk.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSAEncryptOnly, PubKeyAlgoRSASignOnly:
-		bitLength = pk.n.bitLength
-	default:
-		err = errors.InvalidArgumentError("bad public-key algorithm")
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3_test.go b/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3_test.go
deleted file mode 100644
index e064059..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/public_key_v3_test.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-	"time"
-)
-
-var pubKeyV3Test = struct {
-	hexFingerprint string
-	creationTime   time.Time
-	pubKeyAlgo     PublicKeyAlgorithm
-	keyId          uint64
-	keyIdString    string
-	keyIdShort     string
-}{
-	"103BECF5BD1E837C89D19E98487767F7",
-	time.Unix(779753634, 0),
-	PubKeyAlgoRSA,
-	0xDE0F188A5DA5E3C9,
-	"DE0F188A5DA5E3C9",
-	"5DA5E3C9"}
-
-func TestPublicKeyV3Read(t *testing.T) {
-	i, test := 0, pubKeyV3Test
-	packet, err := Read(v3KeyReader(t))
-	if err != nil {
-		t.Fatalf("#%d: Read error: %s", i, err)
-	}
-	pk, ok := packet.(*PublicKeyV3)
-	if !ok {
-		t.Fatalf("#%d: failed to parse, got: %#v", i, packet)
-	}
-	if pk.PubKeyAlgo != test.pubKeyAlgo {
-		t.Errorf("#%d: bad public key algorithm got:%x want:%x", i, pk.PubKeyAlgo, test.pubKeyAlgo)
-	}
-	if !pk.CreationTime.Equal(test.creationTime) {
-		t.Errorf("#%d: bad creation time got:%v want:%v", i, pk.CreationTime, test.creationTime)
-	}
-	expectedFingerprint, _ := hex.DecodeString(test.hexFingerprint)
-	if !bytes.Equal(expectedFingerprint, pk.Fingerprint[:]) {
-		t.Errorf("#%d: bad fingerprint got:%x want:%x", i, pk.Fingerprint[:], expectedFingerprint)
-	}
-	if pk.KeyId != test.keyId {
-		t.Errorf("#%d: bad keyid got:%x want:%x", i, pk.KeyId, test.keyId)
-	}
-	if g, e := pk.KeyIdString(), test.keyIdString; g != e {
-		t.Errorf("#%d: bad KeyIdString got:%q want:%q", i, g, e)
-	}
-	if g, e := pk.KeyIdShortString(), test.keyIdShort; g != e {
-		t.Errorf("#%d: bad KeyIdShortString got:%q want:%q", i, g, e)
-	}
-}
-
-func TestPublicKeyV3Serialize(t *testing.T) {
-	//for i, test := range pubKeyV3Tests {
-	i := 0
-	packet, err := Read(v3KeyReader(t))
-	if err != nil {
-		t.Fatalf("#%d: Read error: %s", i, err)
-	}
-	pk, ok := packet.(*PublicKeyV3)
-	if !ok {
-		t.Fatalf("#%d: failed to parse, got: %#v", i, packet)
-	}
-	var serializeBuf bytes.Buffer
-	if err = pk.Serialize(&serializeBuf); err != nil {
-		t.Fatalf("#%d: failed to serialize: %s", i, err)
-	}
-
-	if packet, err = Read(bytes.NewBuffer(serializeBuf.Bytes())); err != nil {
-		t.Fatalf("#%d: Read error (from serialized data): %s", i, err)
-	}
-	if pk, ok = packet.(*PublicKeyV3); !ok {
-		t.Fatalf("#%d: failed to parse serialized data, got: %#v", i, packet)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/reader.go b/vendor/golang.org/x/crypto/openpgp/packet/reader.go
deleted file mode 100644
index 34bc7c6..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/reader.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"golang.org/x/crypto/openpgp/errors"
-	"io"
-)
-
-// Reader reads packets from an io.Reader and allows packets to be 'unread' so
-// that they result from the next call to Next.
-type Reader struct {
-	q       []Packet
-	readers []io.Reader
-}
-
-// New io.Readers are pushed when a compressed or encrypted packet is processed
-// and recursively treated as a new source of packets. However, a carefully
-// crafted packet can trigger an infinite recursive sequence of packets. See
-// http://mumble.net/~campbell/misc/pgp-quine
-// https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-4402
-// This constant limits the number of recursive packets that may be pushed.
-const maxReaders = 32
-
-// Next returns the most recently unread Packet, or reads another packet from
-// the top-most io.Reader. Unknown packet types are skipped.
-func (r *Reader) Next() (p Packet, err error) {
-	if len(r.q) > 0 {
-		p = r.q[len(r.q)-1]
-		r.q = r.q[:len(r.q)-1]
-		return
-	}
-
-	for len(r.readers) > 0 {
-		p, err = Read(r.readers[len(r.readers)-1])
-		if err == nil {
-			return
-		}
-		if err == io.EOF {
-			r.readers = r.readers[:len(r.readers)-1]
-			continue
-		}
-		if _, ok := err.(errors.UnknownPacketTypeError); !ok {
-			return nil, err
-		}
-	}
-
-	return nil, io.EOF
-}
-
-// Push causes the Reader to start reading from a new io.Reader. When an EOF
-// error is seen from the new io.Reader, it is popped and the Reader continues
-// to read from the next most recent io.Reader. Push returns a StructuralError
-// if pushing the reader would exceed the maximum recursion level, otherwise it
-// returns nil.
-func (r *Reader) Push(reader io.Reader) (err error) {
-	if len(r.readers) >= maxReaders {
-		return errors.StructuralError("too many layers of packets")
-	}
-	r.readers = append(r.readers, reader)
-	return nil
-}
-
-// Unread causes the given Packet to be returned from the next call to Next.
-func (r *Reader) Unread(p Packet) {
-	r.q = append(r.q, p)
-}
-
-func NewReader(r io.Reader) *Reader {
-	return &Reader{
-		q:       nil,
-		readers: []io.Reader{r},
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/signature.go b/vendor/golang.org/x/crypto/openpgp/packet/signature.go
deleted file mode 100644
index 6ce0cbe..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/signature.go
+++ /dev/null
@@ -1,731 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"encoding/asn1"
-	"encoding/binary"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/s2k"
-)
-
-const (
-	// See RFC 4880, section 5.2.3.21 for details.
-	KeyFlagCertify = 1 << iota
-	KeyFlagSign
-	KeyFlagEncryptCommunications
-	KeyFlagEncryptStorage
-)
-
-// Signature represents a signature. See RFC 4880, section 5.2.
-type Signature struct {
-	SigType    SignatureType
-	PubKeyAlgo PublicKeyAlgorithm
-	Hash       crypto.Hash
-
-	// HashSuffix is extra data that is hashed in after the signed data.
-	HashSuffix []byte
-	// HashTag contains the first two bytes of the hash for fast rejection
-	// of bad signed data.
-	HashTag      [2]byte
-	CreationTime time.Time
-
-	RSASignature         parsedMPI
-	DSASigR, DSASigS     parsedMPI
-	ECDSASigR, ECDSASigS parsedMPI
-
-	// rawSubpackets contains the unparsed subpackets, in order.
-	rawSubpackets []outputSubpacket
-
-	// The following are optional so are nil when not included in the
-	// signature.
-
-	SigLifetimeSecs, KeyLifetimeSecs                        *uint32
-	PreferredSymmetric, PreferredHash, PreferredCompression []uint8
-	IssuerKeyId                                             *uint64
-	IsPrimaryId                                             *bool
-
-	// FlagsValid is set if any flags were given. See RFC 4880, section
-	// 5.2.3.21 for details.
-	FlagsValid                                                           bool
-	FlagCertify, FlagSign, FlagEncryptCommunications, FlagEncryptStorage bool
-
-	// RevocationReason is set if this signature has been revoked.
-	// See RFC 4880, section 5.2.3.23 for details.
-	RevocationReason     *uint8
-	RevocationReasonText string
-
-	// MDC is set if this signature has a feature packet that indicates
-	// support for MDC subpackets.
-	MDC bool
-
-	// EmbeddedSignature, if non-nil, is a signature of the parent key, by
-	// this key. This prevents an attacker from claiming another's signing
-	// subkey as their own.
-	EmbeddedSignature *Signature
-
-	outSubpackets []outputSubpacket
-}
-
-func (sig *Signature) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.2.3
-	var buf [5]byte
-	_, err = readFull(r, buf[:1])
-	if err != nil {
-		return
-	}
-	if buf[0] != 4 {
-		err = errors.UnsupportedError("signature packet version " + strconv.Itoa(int(buf[0])))
-		return
-	}
-
-	_, err = readFull(r, buf[:5])
-	if err != nil {
-		return
-	}
-	sig.SigType = SignatureType(buf[0])
-	sig.PubKeyAlgo = PublicKeyAlgorithm(buf[1])
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly, PubKeyAlgoDSA, PubKeyAlgoECDSA:
-	default:
-		err = errors.UnsupportedError("public key algorithm " + strconv.Itoa(int(sig.PubKeyAlgo)))
-		return
-	}
-
-	var ok bool
-	sig.Hash, ok = s2k.HashIdToHash(buf[2])
-	if !ok {
-		return errors.UnsupportedError("hash function " + strconv.Itoa(int(buf[2])))
-	}
-
-	hashedSubpacketsLength := int(buf[3])<<8 | int(buf[4])
-	l := 6 + hashedSubpacketsLength
-	sig.HashSuffix = make([]byte, l+6)
-	sig.HashSuffix[0] = 4
-	copy(sig.HashSuffix[1:], buf[:5])
-	hashedSubpackets := sig.HashSuffix[6:l]
-	_, err = readFull(r, hashedSubpackets)
-	if err != nil {
-		return
-	}
-	// See RFC 4880, section 5.2.4
-	trailer := sig.HashSuffix[l:]
-	trailer[0] = 4
-	trailer[1] = 0xff
-	trailer[2] = uint8(l >> 24)
-	trailer[3] = uint8(l >> 16)
-	trailer[4] = uint8(l >> 8)
-	trailer[5] = uint8(l)
-
-	err = parseSignatureSubpackets(sig, hashedSubpackets, true)
-	if err != nil {
-		return
-	}
-
-	_, err = readFull(r, buf[:2])
-	if err != nil {
-		return
-	}
-	unhashedSubpacketsLength := int(buf[0])<<8 | int(buf[1])
-	unhashedSubpackets := make([]byte, unhashedSubpacketsLength)
-	_, err = readFull(r, unhashedSubpackets)
-	if err != nil {
-		return
-	}
-	err = parseSignatureSubpackets(sig, unhashedSubpackets, false)
-	if err != nil {
-		return
-	}
-
-	_, err = readFull(r, sig.HashTag[:2])
-	if err != nil {
-		return
-	}
-
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		sig.RSASignature.bytes, sig.RSASignature.bitLength, err = readMPI(r)
-	case PubKeyAlgoDSA:
-		sig.DSASigR.bytes, sig.DSASigR.bitLength, err = readMPI(r)
-		if err == nil {
-			sig.DSASigS.bytes, sig.DSASigS.bitLength, err = readMPI(r)
-		}
-	case PubKeyAlgoECDSA:
-		sig.ECDSASigR.bytes, sig.ECDSASigR.bitLength, err = readMPI(r)
-		if err == nil {
-			sig.ECDSASigS.bytes, sig.ECDSASigS.bitLength, err = readMPI(r)
-		}
-	default:
-		panic("unreachable")
-	}
-	return
-}
-
-// parseSignatureSubpackets parses subpackets of the main signature packet. See
-// RFC 4880, section 5.2.3.1.
-func parseSignatureSubpackets(sig *Signature, subpackets []byte, isHashed bool) (err error) {
-	for len(subpackets) > 0 {
-		subpackets, err = parseSignatureSubpacket(sig, subpackets, isHashed)
-		if err != nil {
-			return
-		}
-	}
-
-	if sig.CreationTime.IsZero() {
-		err = errors.StructuralError("no creation time in signature")
-	}
-
-	return
-}
-
-type signatureSubpacketType uint8
-
-const (
-	creationTimeSubpacket        signatureSubpacketType = 2
-	signatureExpirationSubpacket signatureSubpacketType = 3
-	keyExpirationSubpacket       signatureSubpacketType = 9
-	prefSymmetricAlgosSubpacket  signatureSubpacketType = 11
-	issuerSubpacket              signatureSubpacketType = 16
-	prefHashAlgosSubpacket       signatureSubpacketType = 21
-	prefCompressionSubpacket     signatureSubpacketType = 22
-	primaryUserIdSubpacket       signatureSubpacketType = 25
-	keyFlagsSubpacket            signatureSubpacketType = 27
-	reasonForRevocationSubpacket signatureSubpacketType = 29
-	featuresSubpacket            signatureSubpacketType = 30
-	embeddedSignatureSubpacket   signatureSubpacketType = 32
-)
-
-// parseSignatureSubpacket parses a single subpacket. len(subpacket) is >= 1.
-func parseSignatureSubpacket(sig *Signature, subpacket []byte, isHashed bool) (rest []byte, err error) {
-	// RFC 4880, section 5.2.3.1
-	var (
-		length     uint32
-		packetType signatureSubpacketType
-		isCritical bool
-	)
-	switch {
-	case subpacket[0] < 192:
-		length = uint32(subpacket[0])
-		subpacket = subpacket[1:]
-	case subpacket[0] < 255:
-		if len(subpacket) < 2 {
-			goto Truncated
-		}
-		length = uint32(subpacket[0]-192)<<8 + uint32(subpacket[1]) + 192
-		subpacket = subpacket[2:]
-	default:
-		if len(subpacket) < 5 {
-			goto Truncated
-		}
-		length = uint32(subpacket[1])<<24 |
-			uint32(subpacket[2])<<16 |
-			uint32(subpacket[3])<<8 |
-			uint32(subpacket[4])
-		subpacket = subpacket[5:]
-	}
-	if length > uint32(len(subpacket)) {
-		goto Truncated
-	}
-	rest = subpacket[length:]
-	subpacket = subpacket[:length]
-	if len(subpacket) == 0 {
-		err = errors.StructuralError("zero length signature subpacket")
-		return
-	}
-	packetType = signatureSubpacketType(subpacket[0] & 0x7f)
-	isCritical = subpacket[0]&0x80 == 0x80
-	subpacket = subpacket[1:]
-	sig.rawSubpackets = append(sig.rawSubpackets, outputSubpacket{isHashed, packetType, isCritical, subpacket})
-	switch packetType {
-	case creationTimeSubpacket:
-		if !isHashed {
-			err = errors.StructuralError("signature creation time in non-hashed area")
-			return
-		}
-		if len(subpacket) != 4 {
-			err = errors.StructuralError("signature creation time not four bytes")
-			return
-		}
-		t := binary.BigEndian.Uint32(subpacket)
-		sig.CreationTime = time.Unix(int64(t), 0)
-	case signatureExpirationSubpacket:
-		// Signature expiration time, section 5.2.3.10
-		if !isHashed {
-			return
-		}
-		if len(subpacket) != 4 {
-			err = errors.StructuralError("expiration subpacket with bad length")
-			return
-		}
-		sig.SigLifetimeSecs = new(uint32)
-		*sig.SigLifetimeSecs = binary.BigEndian.Uint32(subpacket)
-	case keyExpirationSubpacket:
-		// Key expiration time, section 5.2.3.6
-		if !isHashed {
-			return
-		}
-		if len(subpacket) != 4 {
-			err = errors.StructuralError("key expiration subpacket with bad length")
-			return
-		}
-		sig.KeyLifetimeSecs = new(uint32)
-		*sig.KeyLifetimeSecs = binary.BigEndian.Uint32(subpacket)
-	case prefSymmetricAlgosSubpacket:
-		// Preferred symmetric algorithms, section 5.2.3.7
-		if !isHashed {
-			return
-		}
-		sig.PreferredSymmetric = make([]byte, len(subpacket))
-		copy(sig.PreferredSymmetric, subpacket)
-	case issuerSubpacket:
-		// Issuer, section 5.2.3.5
-		if len(subpacket) != 8 {
-			err = errors.StructuralError("issuer subpacket with bad length")
-			return
-		}
-		sig.IssuerKeyId = new(uint64)
-		*sig.IssuerKeyId = binary.BigEndian.Uint64(subpacket)
-	case prefHashAlgosSubpacket:
-		// Preferred hash algorithms, section 5.2.3.8
-		if !isHashed {
-			return
-		}
-		sig.PreferredHash = make([]byte, len(subpacket))
-		copy(sig.PreferredHash, subpacket)
-	case prefCompressionSubpacket:
-		// Preferred compression algorithms, section 5.2.3.9
-		if !isHashed {
-			return
-		}
-		sig.PreferredCompression = make([]byte, len(subpacket))
-		copy(sig.PreferredCompression, subpacket)
-	case primaryUserIdSubpacket:
-		// Primary User ID, section 5.2.3.19
-		if !isHashed {
-			return
-		}
-		if len(subpacket) != 1 {
-			err = errors.StructuralError("primary user id subpacket with bad length")
-			return
-		}
-		sig.IsPrimaryId = new(bool)
-		if subpacket[0] > 0 {
-			*sig.IsPrimaryId = true
-		}
-	case keyFlagsSubpacket:
-		// Key flags, section 5.2.3.21
-		if !isHashed {
-			return
-		}
-		if len(subpacket) == 0 {
-			err = errors.StructuralError("empty key flags subpacket")
-			return
-		}
-		sig.FlagsValid = true
-		if subpacket[0]&KeyFlagCertify != 0 {
-			sig.FlagCertify = true
-		}
-		if subpacket[0]&KeyFlagSign != 0 {
-			sig.FlagSign = true
-		}
-		if subpacket[0]&KeyFlagEncryptCommunications != 0 {
-			sig.FlagEncryptCommunications = true
-		}
-		if subpacket[0]&KeyFlagEncryptStorage != 0 {
-			sig.FlagEncryptStorage = true
-		}
-	case reasonForRevocationSubpacket:
-		// Reason For Revocation, section 5.2.3.23
-		if !isHashed {
-			return
-		}
-		if len(subpacket) == 0 {
-			err = errors.StructuralError("empty revocation reason subpacket")
-			return
-		}
-		sig.RevocationReason = new(uint8)
-		*sig.RevocationReason = subpacket[0]
-		sig.RevocationReasonText = string(subpacket[1:])
-	case featuresSubpacket:
-		// Features subpacket, section 5.2.3.24 specifies a very general
-		// mechanism for OpenPGP implementations to signal support for new
-		// features. In practice, the subpacket is used exclusively to
-		// indicate support for MDC-protected encryption.
-		sig.MDC = len(subpacket) >= 1 && subpacket[0]&1 == 1
-	case embeddedSignatureSubpacket:
-		// Only usage is in signatures that cross-certify
-		// signing subkeys. section 5.2.3.26 describes the
-		// format, with its usage described in section 11.1
-		if sig.EmbeddedSignature != nil {
-			err = errors.StructuralError("Cannot have multiple embedded signatures")
-			return
-		}
-		sig.EmbeddedSignature = new(Signature)
-		// Embedded signatures are required to be v4 signatures see
-		// section 12.1. However, we only parse v4 signatures in this
-		// file anyway.
-		if err := sig.EmbeddedSignature.parse(bytes.NewBuffer(subpacket)); err != nil {
-			return nil, err
-		}
-		if sigType := sig.EmbeddedSignature.SigType; sigType != SigTypePrimaryKeyBinding {
-			return nil, errors.StructuralError("cross-signature has unexpected type " + strconv.Itoa(int(sigType)))
-		}
-	default:
-		if isCritical {
-			err = errors.UnsupportedError("unknown critical signature subpacket type " + strconv.Itoa(int(packetType)))
-			return
-		}
-	}
-	return
-
-Truncated:
-	err = errors.StructuralError("signature subpacket truncated")
-	return
-}
-
-// subpacketLengthLength returns the length, in bytes, of an encoded length value.
-func subpacketLengthLength(length int) int {
-	if length < 192 {
-		return 1
-	}
-	if length < 16320 {
-		return 2
-	}
-	return 5
-}
-
-// serializeSubpacketLength marshals the given length into to.
-func serializeSubpacketLength(to []byte, length int) int {
-	// RFC 4880, Section 4.2.2.
-	if length < 192 {
-		to[0] = byte(length)
-		return 1
-	}
-	if length < 16320 {
-		length -= 192
-		to[0] = byte((length >> 8) + 192)
-		to[1] = byte(length)
-		return 2
-	}
-	to[0] = 255
-	to[1] = byte(length >> 24)
-	to[2] = byte(length >> 16)
-	to[3] = byte(length >> 8)
-	to[4] = byte(length)
-	return 5
-}
-
-// subpacketsLength returns the serialized length, in bytes, of the given
-// subpackets.
-func subpacketsLength(subpackets []outputSubpacket, hashed bool) (length int) {
-	for _, subpacket := range subpackets {
-		if subpacket.hashed == hashed {
-			length += subpacketLengthLength(len(subpacket.contents) + 1)
-			length += 1 // type byte
-			length += len(subpacket.contents)
-		}
-	}
-	return
-}
-
-// serializeSubpackets marshals the given subpackets into to.
-func serializeSubpackets(to []byte, subpackets []outputSubpacket, hashed bool) {
-	for _, subpacket := range subpackets {
-		if subpacket.hashed == hashed {
-			n := serializeSubpacketLength(to, len(subpacket.contents)+1)
-			to[n] = byte(subpacket.subpacketType)
-			to = to[1+n:]
-			n = copy(to, subpacket.contents)
-			to = to[n:]
-		}
-	}
-	return
-}
-
-// KeyExpired returns whether sig is a self-signature of a key that has
-// expired.
-func (sig *Signature) KeyExpired(currentTime time.Time) bool {
-	if sig.KeyLifetimeSecs == nil {
-		return false
-	}
-	expiry := sig.CreationTime.Add(time.Duration(*sig.KeyLifetimeSecs) * time.Second)
-	return currentTime.After(expiry)
-}
-
-// buildHashSuffix constructs the HashSuffix member of sig in preparation for signing.
-func (sig *Signature) buildHashSuffix() (err error) {
-	hashedSubpacketsLen := subpacketsLength(sig.outSubpackets, true)
-
-	var ok bool
-	l := 6 + hashedSubpacketsLen
-	sig.HashSuffix = make([]byte, l+6)
-	sig.HashSuffix[0] = 4
-	sig.HashSuffix[1] = uint8(sig.SigType)
-	sig.HashSuffix[2] = uint8(sig.PubKeyAlgo)
-	sig.HashSuffix[3], ok = s2k.HashToHashId(sig.Hash)
-	if !ok {
-		sig.HashSuffix = nil
-		return errors.InvalidArgumentError("hash cannot be represented in OpenPGP: " + strconv.Itoa(int(sig.Hash)))
-	}
-	sig.HashSuffix[4] = byte(hashedSubpacketsLen >> 8)
-	sig.HashSuffix[5] = byte(hashedSubpacketsLen)
-	serializeSubpackets(sig.HashSuffix[6:l], sig.outSubpackets, true)
-	trailer := sig.HashSuffix[l:]
-	trailer[0] = 4
-	trailer[1] = 0xff
-	trailer[2] = byte(l >> 24)
-	trailer[3] = byte(l >> 16)
-	trailer[4] = byte(l >> 8)
-	trailer[5] = byte(l)
-	return
-}
-
-func (sig *Signature) signPrepareHash(h hash.Hash) (digest []byte, err error) {
-	err = sig.buildHashSuffix()
-	if err != nil {
-		return
-	}
-
-	h.Write(sig.HashSuffix)
-	digest = h.Sum(nil)
-	copy(sig.HashTag[:], digest)
-	return
-}
-
-// Sign signs a message with a private key. The hash, h, must contain
-// the hash of the message to be signed and will be mutated by this function.
-// On success, the signature is stored in sig. Call Serialize to write it out.
-// If config is nil, sensible defaults will be used.
-func (sig *Signature) Sign(h hash.Hash, priv *PrivateKey, config *Config) (err error) {
-	sig.outSubpackets = sig.buildSubpackets()
-	digest, err := sig.signPrepareHash(h)
-	if err != nil {
-		return
-	}
-
-	switch priv.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		// supports both *rsa.PrivateKey and crypto.Signer
-		sig.RSASignature.bytes, err = priv.PrivateKey.(crypto.Signer).Sign(config.Random(), digest, sig.Hash)
-		sig.RSASignature.bitLength = uint16(8 * len(sig.RSASignature.bytes))
-	case PubKeyAlgoDSA:
-		dsaPriv := priv.PrivateKey.(*dsa.PrivateKey)
-
-		// Need to truncate hashBytes to match FIPS 186-3 section 4.6.
-		subgroupSize := (dsaPriv.Q.BitLen() + 7) / 8
-		if len(digest) > subgroupSize {
-			digest = digest[:subgroupSize]
-		}
-		r, s, err := dsa.Sign(config.Random(), dsaPriv, digest)
-		if err == nil {
-			sig.DSASigR.bytes = r.Bytes()
-			sig.DSASigR.bitLength = uint16(8 * len(sig.DSASigR.bytes))
-			sig.DSASigS.bytes = s.Bytes()
-			sig.DSASigS.bitLength = uint16(8 * len(sig.DSASigS.bytes))
-		}
-	case PubKeyAlgoECDSA:
-		var r, s *big.Int
-		if pk, ok := priv.PrivateKey.(*ecdsa.PrivateKey); ok {
-			// direct support, avoid asn1 wrapping/unwrapping
-			r, s, err = ecdsa.Sign(config.Random(), pk, digest)
-		} else {
-			var b []byte
-			b, err = priv.PrivateKey.(crypto.Signer).Sign(config.Random(), digest, nil)
-			if err == nil {
-				r, s, err = unwrapECDSASig(b)
-			}
-		}
-		if err == nil {
-			sig.ECDSASigR = fromBig(r)
-			sig.ECDSASigS = fromBig(s)
-		}
-	default:
-		err = errors.UnsupportedError("public key algorithm: " + strconv.Itoa(int(sig.PubKeyAlgo)))
-	}
-
-	return
-}
-
-// unwrapECDSASig parses the two integer components of an ASN.1-encoded ECDSA
-// signature.
-func unwrapECDSASig(b []byte) (r, s *big.Int, err error) {
-	var ecsdaSig struct {
-		R, S *big.Int
-	}
-	_, err = asn1.Unmarshal(b, &ecsdaSig)
-	if err != nil {
-		return
-	}
-	return ecsdaSig.R, ecsdaSig.S, nil
-}
-
-// SignUserId computes a signature from priv, asserting that pub is a valid
-// key for the identity id.  On success, the signature is stored in sig. Call
-// Serialize to write it out.
-// If config is nil, sensible defaults will be used.
-func (sig *Signature) SignUserId(id string, pub *PublicKey, priv *PrivateKey, config *Config) error {
-	h, err := userIdSignatureHash(id, pub, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return sig.Sign(h, priv, config)
-}
-
-// SignKey computes a signature from priv, asserting that pub is a subkey. On
-// success, the signature is stored in sig. Call Serialize to write it out.
-// If config is nil, sensible defaults will be used.
-func (sig *Signature) SignKey(pub *PublicKey, priv *PrivateKey, config *Config) error {
-	h, err := keySignatureHash(&priv.PublicKey, pub, sig.Hash)
-	if err != nil {
-		return err
-	}
-	return sig.Sign(h, priv, config)
-}
-
-// Serialize marshals sig to w. Sign, SignUserId or SignKey must have been
-// called first.
-func (sig *Signature) Serialize(w io.Writer) (err error) {
-	if len(sig.outSubpackets) == 0 {
-		sig.outSubpackets = sig.rawSubpackets
-	}
-	if sig.RSASignature.bytes == nil && sig.DSASigR.bytes == nil && sig.ECDSASigR.bytes == nil {
-		return errors.InvalidArgumentError("Signature: need to call Sign, SignUserId or SignKey before Serialize")
-	}
-
-	sigLength := 0
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		sigLength = 2 + len(sig.RSASignature.bytes)
-	case PubKeyAlgoDSA:
-		sigLength = 2 + len(sig.DSASigR.bytes)
-		sigLength += 2 + len(sig.DSASigS.bytes)
-	case PubKeyAlgoECDSA:
-		sigLength = 2 + len(sig.ECDSASigR.bytes)
-		sigLength += 2 + len(sig.ECDSASigS.bytes)
-	default:
-		panic("impossible")
-	}
-
-	unhashedSubpacketsLen := subpacketsLength(sig.outSubpackets, false)
-	length := len(sig.HashSuffix) - 6 /* trailer not included */ +
-		2 /* length of unhashed subpackets */ + unhashedSubpacketsLen +
-		2 /* hash tag */ + sigLength
-	err = serializeHeader(w, packetTypeSignature, length)
-	if err != nil {
-		return
-	}
-
-	_, err = w.Write(sig.HashSuffix[:len(sig.HashSuffix)-6])
-	if err != nil {
-		return
-	}
-
-	unhashedSubpackets := make([]byte, 2+unhashedSubpacketsLen)
-	unhashedSubpackets[0] = byte(unhashedSubpacketsLen >> 8)
-	unhashedSubpackets[1] = byte(unhashedSubpacketsLen)
-	serializeSubpackets(unhashedSubpackets[2:], sig.outSubpackets, false)
-
-	_, err = w.Write(unhashedSubpackets)
-	if err != nil {
-		return
-	}
-	_, err = w.Write(sig.HashTag[:])
-	if err != nil {
-		return
-	}
-
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		err = writeMPIs(w, sig.RSASignature)
-	case PubKeyAlgoDSA:
-		err = writeMPIs(w, sig.DSASigR, sig.DSASigS)
-	case PubKeyAlgoECDSA:
-		err = writeMPIs(w, sig.ECDSASigR, sig.ECDSASigS)
-	default:
-		panic("impossible")
-	}
-	return
-}
-
-// outputSubpacket represents a subpacket to be marshaled.
-type outputSubpacket struct {
-	hashed        bool // true if this subpacket is in the hashed area.
-	subpacketType signatureSubpacketType
-	isCritical    bool
-	contents      []byte
-}
-
-func (sig *Signature) buildSubpackets() (subpackets []outputSubpacket) {
-	creationTime := make([]byte, 4)
-	binary.BigEndian.PutUint32(creationTime, uint32(sig.CreationTime.Unix()))
-	subpackets = append(subpackets, outputSubpacket{true, creationTimeSubpacket, false, creationTime})
-
-	if sig.IssuerKeyId != nil {
-		keyId := make([]byte, 8)
-		binary.BigEndian.PutUint64(keyId, *sig.IssuerKeyId)
-		subpackets = append(subpackets, outputSubpacket{true, issuerSubpacket, false, keyId})
-	}
-
-	if sig.SigLifetimeSecs != nil && *sig.SigLifetimeSecs != 0 {
-		sigLifetime := make([]byte, 4)
-		binary.BigEndian.PutUint32(sigLifetime, *sig.SigLifetimeSecs)
-		subpackets = append(subpackets, outputSubpacket{true, signatureExpirationSubpacket, true, sigLifetime})
-	}
-
-	// Key flags may only appear in self-signatures or certification signatures.
-
-	if sig.FlagsValid {
-		var flags byte
-		if sig.FlagCertify {
-			flags |= KeyFlagCertify
-		}
-		if sig.FlagSign {
-			flags |= KeyFlagSign
-		}
-		if sig.FlagEncryptCommunications {
-			flags |= KeyFlagEncryptCommunications
-		}
-		if sig.FlagEncryptStorage {
-			flags |= KeyFlagEncryptStorage
-		}
-		subpackets = append(subpackets, outputSubpacket{true, keyFlagsSubpacket, false, []byte{flags}})
-	}
-
-	// The following subpackets may only appear in self-signatures
-
-	if sig.KeyLifetimeSecs != nil && *sig.KeyLifetimeSecs != 0 {
-		keyLifetime := make([]byte, 4)
-		binary.BigEndian.PutUint32(keyLifetime, *sig.KeyLifetimeSecs)
-		subpackets = append(subpackets, outputSubpacket{true, keyExpirationSubpacket, true, keyLifetime})
-	}
-
-	if sig.IsPrimaryId != nil && *sig.IsPrimaryId {
-		subpackets = append(subpackets, outputSubpacket{true, primaryUserIdSubpacket, false, []byte{1}})
-	}
-
-	if len(sig.PreferredSymmetric) > 0 {
-		subpackets = append(subpackets, outputSubpacket{true, prefSymmetricAlgosSubpacket, false, sig.PreferredSymmetric})
-	}
-
-	if len(sig.PreferredHash) > 0 {
-		subpackets = append(subpackets, outputSubpacket{true, prefHashAlgosSubpacket, false, sig.PreferredHash})
-	}
-
-	if len(sig.PreferredCompression) > 0 {
-		subpackets = append(subpackets, outputSubpacket{true, prefCompressionSubpacket, false, sig.PreferredCompression})
-	}
-
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/signature_test.go b/vendor/golang.org/x/crypto/openpgp/packet/signature_test.go
deleted file mode 100644
index 56e7611..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/signature_test.go
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"encoding/hex"
-	"testing"
-)
-
-func TestSignatureRead(t *testing.T) {
-	packet, err := Read(readerFromHex(signatureDataHex))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	sig, ok := packet.(*Signature)
-	if !ok || sig.SigType != SigTypeBinary || sig.PubKeyAlgo != PubKeyAlgoRSA || sig.Hash != crypto.SHA1 {
-		t.Errorf("failed to parse, got: %#v", packet)
-	}
-}
-
-func TestSignatureReserialize(t *testing.T) {
-	packet, _ := Read(readerFromHex(signatureDataHex))
-	sig := packet.(*Signature)
-	out := new(bytes.Buffer)
-	err := sig.Serialize(out)
-	if err != nil {
-		t.Errorf("error reserializing: %s", err)
-		return
-	}
-
-	expected, _ := hex.DecodeString(signatureDataHex)
-	if !bytes.Equal(expected, out.Bytes()) {
-		t.Errorf("output doesn't match input (got vs expected):\n%s\n%s", hex.Dump(out.Bytes()), hex.Dump(expected))
-	}
-}
-
-func TestSignUserId(t *testing.T) {
-	sig := &Signature{
-		SigType:    SigTypeGenericCert,
-		PubKeyAlgo: PubKeyAlgoRSA,
-		Hash:       0, // invalid hash function
-	}
-
-	packet, err := Read(readerFromHex(rsaPkDataHex))
-	if err != nil {
-		t.Fatalf("failed to deserialize public key: %v", err)
-	}
-	pubKey := packet.(*PublicKey)
-
-	packet, err = Read(readerFromHex(privKeyRSAHex))
-	if err != nil {
-		t.Fatalf("failed to deserialize private key: %v", err)
-	}
-	privKey := packet.(*PrivateKey)
-
-	err = sig.SignUserId("", pubKey, privKey, nil)
-	if err == nil {
-		t.Errorf("did not receive an error when expected")
-	}
-
-	sig.Hash = crypto.SHA256
-	err = privKey.Decrypt([]byte("testing"))
-	if err != nil {
-		t.Fatalf("failed to decrypt private key: %v", err)
-	}
-
-	err = sig.SignUserId("", pubKey, privKey, nil)
-	if err != nil {
-		t.Errorf("failed to sign user id: %v", err)
-	}
-}
-
-const signatureDataHex = "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"
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/signature_v3.go b/vendor/golang.org/x/crypto/openpgp/packet/signature_v3.go
deleted file mode 100644
index 6edff88..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/signature_v3.go
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto"
-	"encoding/binary"
-	"fmt"
-	"io"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/s2k"
-)
-
-// SignatureV3 represents older version 3 signatures. These signatures are less secure
-// than version 4 and should not be used to create new signatures. They are included
-// here for backwards compatibility to read and validate with older key material.
-// See RFC 4880, section 5.2.2.
-type SignatureV3 struct {
-	SigType      SignatureType
-	CreationTime time.Time
-	IssuerKeyId  uint64
-	PubKeyAlgo   PublicKeyAlgorithm
-	Hash         crypto.Hash
-	HashTag      [2]byte
-
-	RSASignature     parsedMPI
-	DSASigR, DSASigS parsedMPI
-}
-
-func (sig *SignatureV3) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.2.2
-	var buf [8]byte
-	if _, err = readFull(r, buf[:1]); err != nil {
-		return
-	}
-	if buf[0] < 2 || buf[0] > 3 {
-		err = errors.UnsupportedError("signature packet version " + strconv.Itoa(int(buf[0])))
-		return
-	}
-	if _, err = readFull(r, buf[:1]); err != nil {
-		return
-	}
-	if buf[0] != 5 {
-		err = errors.UnsupportedError(
-			"invalid hashed material length " + strconv.Itoa(int(buf[0])))
-		return
-	}
-
-	// Read hashed material: signature type + creation time
-	if _, err = readFull(r, buf[:5]); err != nil {
-		return
-	}
-	sig.SigType = SignatureType(buf[0])
-	t := binary.BigEndian.Uint32(buf[1:5])
-	sig.CreationTime = time.Unix(int64(t), 0)
-
-	// Eight-octet Key ID of signer.
-	if _, err = readFull(r, buf[:8]); err != nil {
-		return
-	}
-	sig.IssuerKeyId = binary.BigEndian.Uint64(buf[:])
-
-	// Public-key and hash algorithm
-	if _, err = readFull(r, buf[:2]); err != nil {
-		return
-	}
-	sig.PubKeyAlgo = PublicKeyAlgorithm(buf[0])
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly, PubKeyAlgoDSA:
-	default:
-		err = errors.UnsupportedError("public key algorithm " + strconv.Itoa(int(sig.PubKeyAlgo)))
-		return
-	}
-	var ok bool
-	if sig.Hash, ok = s2k.HashIdToHash(buf[1]); !ok {
-		return errors.UnsupportedError("hash function " + strconv.Itoa(int(buf[2])))
-	}
-
-	// Two-octet field holding left 16 bits of signed hash value.
-	if _, err = readFull(r, sig.HashTag[:2]); err != nil {
-		return
-	}
-
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		sig.RSASignature.bytes, sig.RSASignature.bitLength, err = readMPI(r)
-	case PubKeyAlgoDSA:
-		if sig.DSASigR.bytes, sig.DSASigR.bitLength, err = readMPI(r); err != nil {
-			return
-		}
-		sig.DSASigS.bytes, sig.DSASigS.bitLength, err = readMPI(r)
-	default:
-		panic("unreachable")
-	}
-	return
-}
-
-// Serialize marshals sig to w. Sign, SignUserId or SignKey must have been
-// called first.
-func (sig *SignatureV3) Serialize(w io.Writer) (err error) {
-	buf := make([]byte, 8)
-
-	// Write the sig type and creation time
-	buf[0] = byte(sig.SigType)
-	binary.BigEndian.PutUint32(buf[1:5], uint32(sig.CreationTime.Unix()))
-	if _, err = w.Write(buf[:5]); err != nil {
-		return
-	}
-
-	// Write the issuer long key ID
-	binary.BigEndian.PutUint64(buf[:8], sig.IssuerKeyId)
-	if _, err = w.Write(buf[:8]); err != nil {
-		return
-	}
-
-	// Write public key algorithm, hash ID, and hash value
-	buf[0] = byte(sig.PubKeyAlgo)
-	hashId, ok := s2k.HashToHashId(sig.Hash)
-	if !ok {
-		return errors.UnsupportedError(fmt.Sprintf("hash function %v", sig.Hash))
-	}
-	buf[1] = hashId
-	copy(buf[2:4], sig.HashTag[:])
-	if _, err = w.Write(buf[:4]); err != nil {
-		return
-	}
-
-	if sig.RSASignature.bytes == nil && sig.DSASigR.bytes == nil {
-		return errors.InvalidArgumentError("Signature: need to call Sign, SignUserId or SignKey before Serialize")
-	}
-
-	switch sig.PubKeyAlgo {
-	case PubKeyAlgoRSA, PubKeyAlgoRSASignOnly:
-		err = writeMPIs(w, sig.RSASignature)
-	case PubKeyAlgoDSA:
-		err = writeMPIs(w, sig.DSASigR, sig.DSASigS)
-	default:
-		panic("impossible")
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/signature_v3_test.go b/vendor/golang.org/x/crypto/openpgp/packet/signature_v3_test.go
deleted file mode 100644
index ad7b62a..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/signature_v3_test.go
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto"
-	"encoding/hex"
-	"io"
-	"io/ioutil"
-	"testing"
-
-	"golang.org/x/crypto/openpgp/armor"
-)
-
-func TestSignatureV3Read(t *testing.T) {
-	r := v3KeyReader(t)
-	Read(r)                // Skip public key
-	Read(r)                // Skip uid
-	packet, err := Read(r) // Signature
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	sig, ok := packet.(*SignatureV3)
-	if !ok || sig.SigType != SigTypeGenericCert || sig.PubKeyAlgo != PubKeyAlgoRSA || sig.Hash != crypto.MD5 {
-		t.Errorf("failed to parse, got: %#v", packet)
-	}
-}
-
-func TestSignatureV3Reserialize(t *testing.T) {
-	r := v3KeyReader(t)
-	Read(r) // Skip public key
-	Read(r) // Skip uid
-	packet, err := Read(r)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	sig := packet.(*SignatureV3)
-	out := new(bytes.Buffer)
-	if err = sig.Serialize(out); err != nil {
-		t.Errorf("error reserializing: %s", err)
-		return
-	}
-	expected, err := ioutil.ReadAll(v3KeyReader(t))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	expected = expected[4+141+4+39:] // See pgpdump offsets below, this is where the sig starts
-	if !bytes.Equal(expected, out.Bytes()) {
-		t.Errorf("output doesn't match input (got vs expected):\n%s\n%s", hex.Dump(out.Bytes()), hex.Dump(expected))
-	}
-}
-
-func v3KeyReader(t *testing.T) io.Reader {
-	armorBlock, err := armor.Decode(bytes.NewBufferString(keySigV3Armor))
-	if err != nil {
-		t.Fatalf("armor Decode failed: %v", err)
-	}
-	return armorBlock.Body
-}
-
-// keySigV3Armor is some V3 public key I found in an SKS dump.
-// Old: Public Key Packet(tag 6)(141 bytes)
-//      Ver 4 - new
-//      Public key creation time - Fri Sep 16 17:13:54 CDT 1994
-//      Pub alg - unknown(pub 0)
-//      Unknown public key(pub 0)
-// Old: User ID Packet(tag 13)(39 bytes)
-//      User ID - Armin M. Warda <warda@nephilim.ruhr.de>
-// Old: Signature Packet(tag 2)(149 bytes)
-//      Ver 4 - new
-//      Sig type - unknown(05)
-//      Pub alg - ElGamal Encrypt-Only(pub 16)
-//      Hash alg - unknown(hash 46)
-//      Hashed Sub: unknown(sub 81, critical)(1988 bytes)
-const keySigV3Armor = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-Version: SKS 1.0.10
-
-mI0CLnoYogAAAQQA1qwA2SuJwfQ5bCQ6u5t20ulnOtY0gykf7YjiK4LiVeRBwHjGq7v30tGV
-5Qti7qqRW4Ww7CDCJc4sZMFnystucR2vLkXaSoNWoFm4Fg47NiisDdhDezHwbVPW6OpCFNSi
-ZAamtj4QAUBu8j4LswafrJqZqR9336/V3g8Yil2l48kABRG0J0FybWluIE0uIFdhcmRhIDx3
-YXJkYUBuZXBoaWxpbS5ydWhyLmRlPoiVAgUQLok2xwXR6zmeWEiZAQE/DgP/WgxPQh40/Po4
-gSkWZCDAjNdph7zexvAb0CcUWahcwiBIgg3U5ErCx9I5CNVA9U+s8bNrDZwgSIeBzp3KhWUx
-524uhGgm6ZUTOAIKA6CbV6pfqoLpJnRYvXYQU5mIWsNa99wcu2qu18OeEDnztb7aLA6Ra9OF
-YFCbq4EjXRoOrYM=
-=LPjs
------END PGP PUBLIC KEY BLOCK-----`
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted.go b/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted.go
deleted file mode 100644
index 744c2d2..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted.go
+++ /dev/null
@@ -1,155 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto/cipher"
-	"io"
-	"strconv"
-
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/s2k"
-)
-
-// This is the largest session key that we'll support. Since no 512-bit cipher
-// has even been seriously used, this is comfortably large.
-const maxSessionKeySizeInBytes = 64
-
-// SymmetricKeyEncrypted represents a passphrase protected session key. See RFC
-// 4880, section 5.3.
-type SymmetricKeyEncrypted struct {
-	CipherFunc   CipherFunction
-	s2k          func(out, in []byte)
-	encryptedKey []byte
-}
-
-const symmetricKeyEncryptedVersion = 4
-
-func (ske *SymmetricKeyEncrypted) parse(r io.Reader) error {
-	// RFC 4880, section 5.3.
-	var buf [2]byte
-	if _, err := readFull(r, buf[:]); err != nil {
-		return err
-	}
-	if buf[0] != symmetricKeyEncryptedVersion {
-		return errors.UnsupportedError("SymmetricKeyEncrypted version")
-	}
-	ske.CipherFunc = CipherFunction(buf[1])
-
-	if ske.CipherFunc.KeySize() == 0 {
-		return errors.UnsupportedError("unknown cipher: " + strconv.Itoa(int(buf[1])))
-	}
-
-	var err error
-	ske.s2k, err = s2k.Parse(r)
-	if err != nil {
-		return err
-	}
-
-	encryptedKey := make([]byte, maxSessionKeySizeInBytes)
-	// The session key may follow. We just have to try and read to find
-	// out. If it exists then we limit it to maxSessionKeySizeInBytes.
-	n, err := readFull(r, encryptedKey)
-	if err != nil && err != io.ErrUnexpectedEOF {
-		return err
-	}
-
-	if n != 0 {
-		if n == maxSessionKeySizeInBytes {
-			return errors.UnsupportedError("oversized encrypted session key")
-		}
-		ske.encryptedKey = encryptedKey[:n]
-	}
-
-	return nil
-}
-
-// Decrypt attempts to decrypt an encrypted session key and returns the key and
-// the cipher to use when decrypting a subsequent Symmetrically Encrypted Data
-// packet.
-func (ske *SymmetricKeyEncrypted) Decrypt(passphrase []byte) ([]byte, CipherFunction, error) {
-	key := make([]byte, ske.CipherFunc.KeySize())
-	ske.s2k(key, passphrase)
-
-	if len(ske.encryptedKey) == 0 {
-		return key, ske.CipherFunc, nil
-	}
-
-	// the IV is all zeros
-	iv := make([]byte, ske.CipherFunc.blockSize())
-	c := cipher.NewCFBDecrypter(ske.CipherFunc.new(key), iv)
-	plaintextKey := make([]byte, len(ske.encryptedKey))
-	c.XORKeyStream(plaintextKey, ske.encryptedKey)
-	cipherFunc := CipherFunction(plaintextKey[0])
-	if cipherFunc.blockSize() == 0 {
-		return nil, ske.CipherFunc, errors.UnsupportedError("unknown cipher: " + strconv.Itoa(int(cipherFunc)))
-	}
-	plaintextKey = plaintextKey[1:]
-	if l, cipherKeySize := len(plaintextKey), cipherFunc.KeySize(); l != cipherFunc.KeySize() {
-		return nil, cipherFunc, errors.StructuralError("length of decrypted key (" + strconv.Itoa(l) + ") " +
-			"not equal to cipher keysize (" + strconv.Itoa(cipherKeySize) + ")")
-	}
-	return plaintextKey, cipherFunc, nil
-}
-
-// SerializeSymmetricKeyEncrypted serializes a symmetric key packet to w. The
-// packet contains a random session key, encrypted by a key derived from the
-// given passphrase. The session key is returned and must be passed to
-// SerializeSymmetricallyEncrypted.
-// If config is nil, sensible defaults will be used.
-func SerializeSymmetricKeyEncrypted(w io.Writer, passphrase []byte, config *Config) (key []byte, err error) {
-	cipherFunc := config.Cipher()
-	keySize := cipherFunc.KeySize()
-	if keySize == 0 {
-		return nil, errors.UnsupportedError("unknown cipher: " + strconv.Itoa(int(cipherFunc)))
-	}
-
-	s2kBuf := new(bytes.Buffer)
-	keyEncryptingKey := make([]byte, keySize)
-	// s2k.Serialize salts and stretches the passphrase, and writes the
-	// resulting key to keyEncryptingKey and the s2k descriptor to s2kBuf.
-	err = s2k.Serialize(s2kBuf, keyEncryptingKey, config.Random(), passphrase, &s2k.Config{Hash: config.Hash(), S2KCount: config.PasswordHashIterations()})
-	if err != nil {
-		return
-	}
-	s2kBytes := s2kBuf.Bytes()
-
-	packetLength := 2 /* header */ + len(s2kBytes) + 1 /* cipher type */ + keySize
-	err = serializeHeader(w, packetTypeSymmetricKeyEncrypted, packetLength)
-	if err != nil {
-		return
-	}
-
-	var buf [2]byte
-	buf[0] = symmetricKeyEncryptedVersion
-	buf[1] = byte(cipherFunc)
-	_, err = w.Write(buf[:])
-	if err != nil {
-		return
-	}
-	_, err = w.Write(s2kBytes)
-	if err != nil {
-		return
-	}
-
-	sessionKey := make([]byte, keySize)
-	_, err = io.ReadFull(config.Random(), sessionKey)
-	if err != nil {
-		return
-	}
-	iv := make([]byte, cipherFunc.blockSize())
-	c := cipher.NewCFBEncrypter(cipherFunc.new(keyEncryptingKey), iv)
-	encryptedCipherAndKey := make([]byte, keySize+1)
-	c.XORKeyStream(encryptedCipherAndKey, buf[1:])
-	c.XORKeyStream(encryptedCipherAndKey[1:], sessionKey)
-	_, err = w.Write(encryptedCipherAndKey)
-	if err != nil {
-		return
-	}
-
-	key = sessionKey
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted_test.go b/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted_test.go
deleted file mode 100644
index e1d52c1..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/symmetric_key_encrypted_test.go
+++ /dev/null
@@ -1,117 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/hex"
-	"io"
-	"io/ioutil"
-	"testing"
-)
-
-func TestSymmetricKeyEncrypted(t *testing.T) {
-	buf := readerFromHex(symmetricallyEncryptedHex)
-	packet, err := Read(buf)
-	if err != nil {
-		t.Errorf("failed to read SymmetricKeyEncrypted: %s", err)
-		return
-	}
-	ske, ok := packet.(*SymmetricKeyEncrypted)
-	if !ok {
-		t.Error("didn't find SymmetricKeyEncrypted packet")
-		return
-	}
-	key, cipherFunc, err := ske.Decrypt([]byte("password"))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	packet, err = Read(buf)
-	if err != nil {
-		t.Errorf("failed to read SymmetricallyEncrypted: %s", err)
-		return
-	}
-	se, ok := packet.(*SymmetricallyEncrypted)
-	if !ok {
-		t.Error("didn't find SymmetricallyEncrypted packet")
-		return
-	}
-	r, err := se.Decrypt(cipherFunc, key)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	contents, err := ioutil.ReadAll(r)
-	if err != nil && err != io.EOF {
-		t.Error(err)
-		return
-	}
-
-	expectedContents, _ := hex.DecodeString(symmetricallyEncryptedContentsHex)
-	if !bytes.Equal(expectedContents, contents) {
-		t.Errorf("bad contents got:%x want:%x", contents, expectedContents)
-	}
-}
-
-const symmetricallyEncryptedHex = "8c0d04030302371a0b38d884f02060c91cf97c9973b8e58e028e9501708ccfe618fb92afef7fa2d80ddadd93cf"
-const symmetricallyEncryptedContentsHex = "cb1062004d14c4df636f6e74656e74732e0a"
-
-func TestSerializeSymmetricKeyEncryptedCiphers(t *testing.T) {
-	tests := [...]struct {
-		cipherFunc CipherFunction
-		name       string
-	}{
-		{Cipher3DES, "Cipher3DES"},
-		{CipherCAST5, "CipherCAST5"},
-		{CipherAES128, "CipherAES128"},
-		{CipherAES192, "CipherAES192"},
-		{CipherAES256, "CipherAES256"},
-	}
-
-	for _, test := range tests {
-		var buf bytes.Buffer
-		passphrase := []byte("testing")
-		config := &Config{
-			DefaultCipher: test.cipherFunc,
-		}
-
-		key, err := SerializeSymmetricKeyEncrypted(&buf, passphrase, config)
-		if err != nil {
-			t.Errorf("cipher(%s) failed to serialize: %s", test.name, err)
-			continue
-		}
-
-		p, err := Read(&buf)
-		if err != nil {
-			t.Errorf("cipher(%s) failed to reparse: %s", test.name, err)
-			continue
-		}
-
-		ske, ok := p.(*SymmetricKeyEncrypted)
-		if !ok {
-			t.Errorf("cipher(%s) parsed a different packet type: %#v", test.name, p)
-			continue
-		}
-
-		if ske.CipherFunc != config.DefaultCipher {
-			t.Errorf("cipher(%s) SKE cipher function is %d (expected %d)", test.name, ske.CipherFunc, config.DefaultCipher)
-		}
-		parsedKey, parsedCipherFunc, err := ske.Decrypt(passphrase)
-		if err != nil {
-			t.Errorf("cipher(%s) failed to decrypt reparsed SKE: %s", test.name, err)
-			continue
-		}
-		if !bytes.Equal(key, parsedKey) {
-			t.Errorf("cipher(%s) keys don't match after Decrypt: %x (original) vs %x (parsed)", test.name, key, parsedKey)
-		}
-		if parsedCipherFunc != test.cipherFunc {
-			t.Errorf("cipher(%s) cipher function doesn't match after Decrypt: %d (original) vs %d (parsed)",
-				test.name, test.cipherFunc, parsedCipherFunc)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted.go b/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted.go
deleted file mode 100644
index 6126030..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted.go
+++ /dev/null
@@ -1,290 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"crypto/cipher"
-	"crypto/sha1"
-	"crypto/subtle"
-	"golang.org/x/crypto/openpgp/errors"
-	"hash"
-	"io"
-	"strconv"
-)
-
-// SymmetricallyEncrypted represents a symmetrically encrypted byte string. The
-// encrypted contents will consist of more OpenPGP packets. See RFC 4880,
-// sections 5.7 and 5.13.
-type SymmetricallyEncrypted struct {
-	MDC      bool // true iff this is a type 18 packet and thus has an embedded MAC.
-	contents io.Reader
-	prefix   []byte
-}
-
-const symmetricallyEncryptedVersion = 1
-
-func (se *SymmetricallyEncrypted) parse(r io.Reader) error {
-	if se.MDC {
-		// See RFC 4880, section 5.13.
-		var buf [1]byte
-		_, err := readFull(r, buf[:])
-		if err != nil {
-			return err
-		}
-		if buf[0] != symmetricallyEncryptedVersion {
-			return errors.UnsupportedError("unknown SymmetricallyEncrypted version")
-		}
-	}
-	se.contents = r
-	return nil
-}
-
-// Decrypt returns a ReadCloser, from which the decrypted contents of the
-// packet can be read. An incorrect key can, with high probability, be detected
-// immediately and this will result in a KeyIncorrect error being returned.
-func (se *SymmetricallyEncrypted) Decrypt(c CipherFunction, key []byte) (io.ReadCloser, error) {
-	keySize := c.KeySize()
-	if keySize == 0 {
-		return nil, errors.UnsupportedError("unknown cipher: " + strconv.Itoa(int(c)))
-	}
-	if len(key) != keySize {
-		return nil, errors.InvalidArgumentError("SymmetricallyEncrypted: incorrect key length")
-	}
-
-	if se.prefix == nil {
-		se.prefix = make([]byte, c.blockSize()+2)
-		_, err := readFull(se.contents, se.prefix)
-		if err != nil {
-			return nil, err
-		}
-	} else if len(se.prefix) != c.blockSize()+2 {
-		return nil, errors.InvalidArgumentError("can't try ciphers with different block lengths")
-	}
-
-	ocfbResync := OCFBResync
-	if se.MDC {
-		// MDC packets use a different form of OCFB mode.
-		ocfbResync = OCFBNoResync
-	}
-
-	s := NewOCFBDecrypter(c.new(key), se.prefix, ocfbResync)
-	if s == nil {
-		return nil, errors.ErrKeyIncorrect
-	}
-
-	plaintext := cipher.StreamReader{S: s, R: se.contents}
-
-	if se.MDC {
-		// MDC packets have an embedded hash that we need to check.
-		h := sha1.New()
-		h.Write(se.prefix)
-		return &seMDCReader{in: plaintext, h: h}, nil
-	}
-
-	// Otherwise, we just need to wrap plaintext so that it's a valid ReadCloser.
-	return seReader{plaintext}, nil
-}
-
-// seReader wraps an io.Reader with a no-op Close method.
-type seReader struct {
-	in io.Reader
-}
-
-func (ser seReader) Read(buf []byte) (int, error) {
-	return ser.in.Read(buf)
-}
-
-func (ser seReader) Close() error {
-	return nil
-}
-
-const mdcTrailerSize = 1 /* tag byte */ + 1 /* length byte */ + sha1.Size
-
-// An seMDCReader wraps an io.Reader, maintains a running hash and keeps hold
-// of the most recent 22 bytes (mdcTrailerSize). Upon EOF, those bytes form an
-// MDC packet containing a hash of the previous contents which is checked
-// against the running hash. See RFC 4880, section 5.13.
-type seMDCReader struct {
-	in          io.Reader
-	h           hash.Hash
-	trailer     [mdcTrailerSize]byte
-	scratch     [mdcTrailerSize]byte
-	trailerUsed int
-	error       bool
-	eof         bool
-}
-
-func (ser *seMDCReader) Read(buf []byte) (n int, err error) {
-	if ser.error {
-		err = io.ErrUnexpectedEOF
-		return
-	}
-	if ser.eof {
-		err = io.EOF
-		return
-	}
-
-	// If we haven't yet filled the trailer buffer then we must do that
-	// first.
-	for ser.trailerUsed < mdcTrailerSize {
-		n, err = ser.in.Read(ser.trailer[ser.trailerUsed:])
-		ser.trailerUsed += n
-		if err == io.EOF {
-			if ser.trailerUsed != mdcTrailerSize {
-				n = 0
-				err = io.ErrUnexpectedEOF
-				ser.error = true
-				return
-			}
-			ser.eof = true
-			n = 0
-			return
-		}
-
-		if err != nil {
-			n = 0
-			return
-		}
-	}
-
-	// If it's a short read then we read into a temporary buffer and shift
-	// the data into the caller's buffer.
-	if len(buf) <= mdcTrailerSize {
-		n, err = readFull(ser.in, ser.scratch[:len(buf)])
-		copy(buf, ser.trailer[:n])
-		ser.h.Write(buf[:n])
-		copy(ser.trailer[:], ser.trailer[n:])
-		copy(ser.trailer[mdcTrailerSize-n:], ser.scratch[:])
-		if n < len(buf) {
-			ser.eof = true
-			err = io.EOF
-		}
-		return
-	}
-
-	n, err = ser.in.Read(buf[mdcTrailerSize:])
-	copy(buf, ser.trailer[:])
-	ser.h.Write(buf[:n])
-	copy(ser.trailer[:], buf[n:])
-
-	if err == io.EOF {
-		ser.eof = true
-	}
-	return
-}
-
-// This is a new-format packet tag byte for a type 19 (MDC) packet.
-const mdcPacketTagByte = byte(0x80) | 0x40 | 19
-
-func (ser *seMDCReader) Close() error {
-	if ser.error {
-		return errors.SignatureError("error during reading")
-	}
-
-	for !ser.eof {
-		// We haven't seen EOF so we need to read to the end
-		var buf [1024]byte
-		_, err := ser.Read(buf[:])
-		if err == io.EOF {
-			break
-		}
-		if err != nil {
-			return errors.SignatureError("error during reading")
-		}
-	}
-
-	if ser.trailer[0] != mdcPacketTagByte || ser.trailer[1] != sha1.Size {
-		return errors.SignatureError("MDC packet not found")
-	}
-	ser.h.Write(ser.trailer[:2])
-
-	final := ser.h.Sum(nil)
-	if subtle.ConstantTimeCompare(final, ser.trailer[2:]) != 1 {
-		return errors.SignatureError("hash mismatch")
-	}
-	return nil
-}
-
-// An seMDCWriter writes through to an io.WriteCloser while maintains a running
-// hash of the data written. On close, it emits an MDC packet containing the
-// running hash.
-type seMDCWriter struct {
-	w io.WriteCloser
-	h hash.Hash
-}
-
-func (w *seMDCWriter) Write(buf []byte) (n int, err error) {
-	w.h.Write(buf)
-	return w.w.Write(buf)
-}
-
-func (w *seMDCWriter) Close() (err error) {
-	var buf [mdcTrailerSize]byte
-
-	buf[0] = mdcPacketTagByte
-	buf[1] = sha1.Size
-	w.h.Write(buf[:2])
-	digest := w.h.Sum(nil)
-	copy(buf[2:], digest)
-
-	_, err = w.w.Write(buf[:])
-	if err != nil {
-		return
-	}
-	return w.w.Close()
-}
-
-// noOpCloser is like an ioutil.NopCloser, but for an io.Writer.
-type noOpCloser struct {
-	w io.Writer
-}
-
-func (c noOpCloser) Write(data []byte) (n int, err error) {
-	return c.w.Write(data)
-}
-
-func (c noOpCloser) Close() error {
-	return nil
-}
-
-// SerializeSymmetricallyEncrypted serializes a symmetrically encrypted packet
-// to w and returns a WriteCloser to which the to-be-encrypted packets can be
-// written.
-// If config is nil, sensible defaults will be used.
-func SerializeSymmetricallyEncrypted(w io.Writer, c CipherFunction, key []byte, config *Config) (contents io.WriteCloser, err error) {
-	if c.KeySize() != len(key) {
-		return nil, errors.InvalidArgumentError("SymmetricallyEncrypted.Serialize: bad key length")
-	}
-	writeCloser := noOpCloser{w}
-	ciphertext, err := serializeStreamHeader(writeCloser, packetTypeSymmetricallyEncryptedMDC)
-	if err != nil {
-		return
-	}
-
-	_, err = ciphertext.Write([]byte{symmetricallyEncryptedVersion})
-	if err != nil {
-		return
-	}
-
-	block := c.new(key)
-	blockSize := block.BlockSize()
-	iv := make([]byte, blockSize)
-	_, err = config.Random().Read(iv)
-	if err != nil {
-		return
-	}
-	s, prefix := NewOCFBEncrypter(block, iv, OCFBNoResync)
-	_, err = ciphertext.Write(prefix)
-	if err != nil {
-		return
-	}
-	plaintext := cipher.StreamWriter{S: s, W: ciphertext}
-
-	h := sha1.New()
-	h.Write(iv)
-	h.Write(iv[blockSize-2:])
-	contents = &seMDCWriter{w: plaintext, h: h}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted_test.go b/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted_test.go
deleted file mode 100644
index c5c00f7..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/symmetrically_encrypted_test.go
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"crypto/sha1"
-	"encoding/hex"
-	"golang.org/x/crypto/openpgp/errors"
-	"io"
-	"io/ioutil"
-	"testing"
-)
-
-// TestReader wraps a []byte and returns reads of a specific length.
-type testReader struct {
-	data   []byte
-	stride int
-}
-
-func (t *testReader) Read(buf []byte) (n int, err error) {
-	n = t.stride
-	if n > len(t.data) {
-		n = len(t.data)
-	}
-	if n > len(buf) {
-		n = len(buf)
-	}
-	copy(buf, t.data)
-	t.data = t.data[n:]
-	if len(t.data) == 0 {
-		err = io.EOF
-	}
-	return
-}
-
-func testMDCReader(t *testing.T) {
-	mdcPlaintext, _ := hex.DecodeString(mdcPlaintextHex)
-
-	for stride := 1; stride < len(mdcPlaintext)/2; stride++ {
-		r := &testReader{data: mdcPlaintext, stride: stride}
-		mdcReader := &seMDCReader{in: r, h: sha1.New()}
-		body, err := ioutil.ReadAll(mdcReader)
-		if err != nil {
-			t.Errorf("stride: %d, error: %s", stride, err)
-			continue
-		}
-		if !bytes.Equal(body, mdcPlaintext[:len(mdcPlaintext)-22]) {
-			t.Errorf("stride: %d: bad contents %x", stride, body)
-			continue
-		}
-
-		err = mdcReader.Close()
-		if err != nil {
-			t.Errorf("stride: %d, error on Close: %s", stride, err)
-		}
-	}
-
-	mdcPlaintext[15] ^= 80
-
-	r := &testReader{data: mdcPlaintext, stride: 2}
-	mdcReader := &seMDCReader{in: r, h: sha1.New()}
-	_, err := ioutil.ReadAll(mdcReader)
-	if err != nil {
-		t.Errorf("corruption test, error: %s", err)
-		return
-	}
-	err = mdcReader.Close()
-	if err == nil {
-		t.Error("corruption: no error")
-	} else if _, ok := err.(*errors.SignatureError); !ok {
-		t.Errorf("corruption: expected SignatureError, got: %s", err)
-	}
-}
-
-const mdcPlaintextHex = "a302789c3b2d93c4e0eb9aba22283539b3203335af44a134afb800c849cb4c4de10200aff40b45d31432c80cb384299a0655966d6939dfdeed1dddf980"
-
-func TestSerialize(t *testing.T) {
-	buf := bytes.NewBuffer(nil)
-	c := CipherAES128
-	key := make([]byte, c.KeySize())
-
-	w, err := SerializeSymmetricallyEncrypted(buf, c, key, nil)
-	if err != nil {
-		t.Errorf("error from SerializeSymmetricallyEncrypted: %s", err)
-		return
-	}
-
-	contents := []byte("hello world\n")
-
-	w.Write(contents)
-	w.Close()
-
-	p, err := Read(buf)
-	if err != nil {
-		t.Errorf("error from Read: %s", err)
-		return
-	}
-
-	se, ok := p.(*SymmetricallyEncrypted)
-	if !ok {
-		t.Errorf("didn't read a *SymmetricallyEncrypted")
-		return
-	}
-
-	r, err := se.Decrypt(c, key)
-	if err != nil {
-		t.Errorf("error from Decrypt: %s", err)
-		return
-	}
-
-	contentsCopy := bytes.NewBuffer(nil)
-	_, err = io.Copy(contentsCopy, r)
-	if err != nil {
-		t.Errorf("error from io.Copy: %s", err)
-		return
-	}
-	if !bytes.Equal(contentsCopy.Bytes(), contents) {
-		t.Errorf("contents not equal got: %x want: %x", contentsCopy.Bytes(), contents)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/userattribute.go b/vendor/golang.org/x/crypto/openpgp/packet/userattribute.go
deleted file mode 100644
index 96a2b38..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/userattribute.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"image"
-	"image/jpeg"
-	"io"
-	"io/ioutil"
-)
-
-const UserAttrImageSubpacket = 1
-
-// UserAttribute is capable of storing other types of data about a user
-// beyond name, email and a text comment. In practice, user attributes are typically used
-// to store a signed thumbnail photo JPEG image of the user.
-// See RFC 4880, section 5.12.
-type UserAttribute struct {
-	Contents []*OpaqueSubpacket
-}
-
-// NewUserAttributePhoto creates a user attribute packet
-// containing the given images.
-func NewUserAttributePhoto(photos ...image.Image) (uat *UserAttribute, err error) {
-	uat = new(UserAttribute)
-	for _, photo := range photos {
-		var buf bytes.Buffer
-		// RFC 4880, Section 5.12.1.
-		data := []byte{
-			0x10, 0x00, // Little-endian image header length (16 bytes)
-			0x01,       // Image header version 1
-			0x01,       // JPEG
-			0, 0, 0, 0, // 12 reserved octets, must be all zero.
-			0, 0, 0, 0,
-			0, 0, 0, 0}
-		if _, err = buf.Write(data); err != nil {
-			return
-		}
-		if err = jpeg.Encode(&buf, photo, nil); err != nil {
-			return
-		}
-		uat.Contents = append(uat.Contents, &OpaqueSubpacket{
-			SubType:  UserAttrImageSubpacket,
-			Contents: buf.Bytes()})
-	}
-	return
-}
-
-// NewUserAttribute creates a new user attribute packet containing the given subpackets.
-func NewUserAttribute(contents ...*OpaqueSubpacket) *UserAttribute {
-	return &UserAttribute{Contents: contents}
-}
-
-func (uat *UserAttribute) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.13
-	b, err := ioutil.ReadAll(r)
-	if err != nil {
-		return
-	}
-	uat.Contents, err = OpaqueSubpackets(b)
-	return
-}
-
-// Serialize marshals the user attribute to w in the form of an OpenPGP packet, including
-// header.
-func (uat *UserAttribute) Serialize(w io.Writer) (err error) {
-	var buf bytes.Buffer
-	for _, sp := range uat.Contents {
-		sp.Serialize(&buf)
-	}
-	if err = serializeHeader(w, packetTypeUserAttribute, buf.Len()); err != nil {
-		return err
-	}
-	_, err = w.Write(buf.Bytes())
-	return
-}
-
-// ImageData returns zero or more byte slices, each containing
-// JPEG File Interchange Format (JFIF), for each photo in the
-// the user attribute packet.
-func (uat *UserAttribute) ImageData() (imageData [][]byte) {
-	for _, sp := range uat.Contents {
-		if sp.SubType == UserAttrImageSubpacket && len(sp.Contents) > 16 {
-			imageData = append(imageData, sp.Contents[16:])
-		}
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/userattribute_test.go b/vendor/golang.org/x/crypto/openpgp/packet/userattribute_test.go
deleted file mode 100644
index 13ca514..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/userattribute_test.go
+++ /dev/null
@@ -1,109 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"bytes"
-	"encoding/base64"
-	"image/color"
-	"image/jpeg"
-	"testing"
-)
-
-func TestParseUserAttribute(t *testing.T) {
-	r := base64.NewDecoder(base64.StdEncoding, bytes.NewBufferString(userAttributePacket))
-	for i := 0; i < 2; i++ {
-		p, err := Read(r)
-		if err != nil {
-			t.Fatal(err)
-		}
-		uat := p.(*UserAttribute)
-		imgs := uat.ImageData()
-		if len(imgs) != 1 {
-			t.Errorf("Unexpected number of images in user attribute packet: %d", len(imgs))
-		}
-		if len(imgs[0]) != 3395 {
-			t.Errorf("Unexpected JPEG image size: %d", len(imgs[0]))
-		}
-		img, err := jpeg.Decode(bytes.NewBuffer(imgs[0]))
-		if err != nil {
-			t.Errorf("Error decoding JPEG image: %v", err)
-		}
-		// A pixel in my right eye.
-		pixel := color.NRGBAModel.Convert(img.At(56, 36))
-		ref := color.NRGBA{R: 157, G: 128, B: 124, A: 255}
-		if pixel != ref {
-			t.Errorf("Unexpected pixel color: %v", pixel)
-		}
-		w := bytes.NewBuffer(nil)
-		err = uat.Serialize(w)
-		if err != nil {
-			t.Errorf("Error writing user attribute: %v", err)
-		}
-		r = bytes.NewBuffer(w.Bytes())
-	}
-}
-
-const userAttributePacket = `
-0cyWzJQBEAABAQAAAAAAAAAAAAAAAP/Y/+AAEEpGSUYAAQIAAAEAAQAA/9sAQwAFAwQEBAMFBAQE
-BQUFBgcMCAcHBwcPCgsJDBEPEhIRDxEQExYcFxMUGhUQERghGBocHR8fHxMXIiQiHiQcHh8e/9sA
-QwEFBQUHBgcOCAgOHhQRFB4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4eHh4e
-Hh4eHh4eHh4e/8AAEQgAZABkAwEiAAIRAQMRAf/EAB8AAAEFAQEBAQEBAAAAAAAAAAABAgMEBQYH
-CAkKC//EALUQAAIBAwMCBAMFBQQEAAABfQECAwAEEQUSITFBBhNRYQcicRQygZGhCCNCscEVUtHw
-JDNicoIJChYXGBkaJSYnKCkqNDU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6
-g4SFhoeIiYqSk5SVlpeYmZqio6Slpqeoqaqys7S1tre4ubrCw8TFxsfIycrS09TV1tfY2drh4uPk
-5ebn6Onq8fLz9PX29/j5+v/EAB8BAAMBAQEBAQEBAQEAAAAAAAABAgMEBQYHCAkKC//EALURAAIB
-AgQEAwQHBQQEAAECdwABAgMRBAUhMQYSQVEHYXETIjKBCBRCkaGxwQkjM1LwFWJy0QoWJDThJfEX
-GBkaJicoKSo1Njc4OTpDREVGR0hJSlNUVVZXWFlaY2RlZmdoaWpzdHV2d3h5eoKDhIWGh4iJipKT
-lJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT1NXW19jZ2uLj5OXm5+jp6vLz9PX2
-9/j5+v/aAAwDAQACEQMRAD8A5uGP06VehQ4pIox04q5EnHSvAep+hIIl4zVuMHGPWmRrUWtalaaN
-pU2oXsgSGJSxPr6ClvoitErs0Itqjc7BQOpPAFYmrfEnwjojtHNqaXEynBjtx5hH4jj9a8B8d+Od
-W8UXZjWR4LJT+7t0Jwfc+prnIdO1CWZEW2mZ3HyDactXXDB3V5s8evm1namj6r0H4weCLtxG+ova
-ueP30RA/MV6not1bX0Ed1ZzxzwyDKvGwZSPqK+Ff+ES8R8t/ZV2oHUmM10Hgbxp4m8BatEfNnWBH
-/eWshOxx9Kmpg4te49RUM1kn+8Wh9zQ4P1FaMC7l465rjPh14y0fxnoseoaXOpfaPOgJ+eI98j09
-67W19M15bi4uzPSqTU480WXkjZkAyAR61DPE6OCSOalWRRgZxjvTb598sfU4FBwx5uY4T4feIm8P
-TeJbAgc65NIM+8cX+FFeLfF3Vr3SfiNrMFrMypJMJcDPUqP8KK+kpVFyLU+ar037SXqX4hxVpMY7
-1UhPpVlT2rybKx9smWYz3NeH/EDVLzxt40j8O6bITaQybPlbKkjq39K9O8fasdH8IahfKxWQRFIy
-Ou9uB/OuE/Z/0y3j1d9TuyoZCMs5xjuea1pLli5nn46q240l13PcfhN8EvDNtpcEl/CklyVBLuMk
-mvU/Dfwo0BL/AO13FjEDD/qyV7Vn+CvGPg8zRpJrVm8ikLtEg6+1ew2dxZ3EQaJgysuQPasH7eXW
-1zzsbVhT92kk/PsYieEND+zlPs6c/wCyAPyryH4wfCPRtW0u6j+xRLOxLxSoADkDpXY+MPjJ4c0S
-9k082d3O8ZKkxw5XI96ytK+IGk+IpFjRpod+Qq3C7QT6A1E6NenaXbqRg6rlLlqS0fRnxjpd1r/w
-w8afa7GWRPKbZLGeBKmeVNfZngLxNaeKfDdprVjxHcLlkJ5Vh1H5185/tDad9h8XOsqAw3Cb0cjq
-CfX61P8AsveKf7L8T3fhe5nxa3g324YniQdh9R/KuivTdSmp9TXB1/Z1nRlsfU249QBx1pWfcwI7
-Cq6u2Ovamb9rYz16V5x7Psz5q/aJhZfibcupIElvE3H+7j+lFbXx9szP45jlUfeso8/99OKK9elL
-3EeNVopzZVharCtxVRGGMk02S5JyFOB69zWTieypnL/GksfB+0cr9oQt69awPhPpD69Y3Ky3DWth
-CWluGU4LAdq3vibGs/g68BJygVxjrwRW5+ztoRv/AAs8EeCZnO/J/hzz/Kumi4wp3kePjlOdZKPY
-ml8Mvo6WM9ppi7J0EkQYMzkb1X0wW+bJHGACa+ivg14huZPCkjXUO6SImIYOQAP6UQ2sGneHmiWF
-CYoSAAuM8etXfhBpMr+EZ3SSNRcMx6ZxWdes6ytBGSwkMNFuo7pnP614Ut9Zn1C4uLySKcwObGFA
-Qnm4+XcR71h+CfDHiKCQWuv2YWFtw+bBZQD8rcE8n2Ney+GbGGQSM6I7xvtI681rXdp8hKRRp6t3
-FYPE1VDlsY1nQjWdl+J8w/tOeDZZ/AMd/EGefTHyxxyYjwfyODXg3waRh8UtEcFh+8Jb8FNfZPxh
-Ak8J6nbPIsiyW7LnseK+Ofh99ptPHFnf2lu0y2twGcKuSEPB/Q1WHk50miq1o14TXU+xop+On61H
-NMC6Nis1LgsAcUTSt1APFcXJZn0EqmhyvxA037friTYziBV6f7Tf40Vr3k4aXLx5OMZIzRXZB2ik
-efJXbPHJJcnaD9aN2R1qoGO8/WkuLlIV+YjdjpXSonQ5lTxfiTwzqCnkeQxx9BWx+zPrQsrBFYja
-zEfrXL6lfie3khcjY6lSPUGud+G3iA6FrY0uQ/KJsA9gCa0jSvFpnBi6tpKSPu++nsIfDFxeXciR
-qIicscY4rxTwB8RUkn1axsPEf2LTYx85kTGzqCUP8VcJ47+JOs+I0Hhq1njjt/ufIeSvq1VtE+Gs
-eoaUbSHUrkHdu3WtuX5Ix81XRh7OL5jirVpV5Whdn0F8C/iX4auVn0i612T7bASoe8wjTAd89K9g
-vtSt5NMa4t5lkRhgOh3Dn6V8aaz8KZrIR3OlQ6r56LySmSxxz06Vo/CHx34h0rxBP4XvJ5AjK2RP
-nEbAEj6ZxjPrWM6fMmoswqJxqJ1VZnqHxn1NLPwveqWHmNC2BnnNcD8DfDkGi+CH1m+ijN1qMzNA
-4GSIiAMf+hVxPxU8Tapc3c0F9MGCn5GU5BX0Pau3+HmrT3XgXSIJCBHDGdgAx1NYSpezha52Yauq
-1dya2Wh2onAIwTj1p0lxxWWLkhRyCKWa5O3ORXOos9KVQluZm83j0oqi84JyWH50Vdmc7ep43d3I
-t1Z2Iz2FYdxeSTsxyRnvTdVuDNcNluM9KrKcg817NOnZGNbEXdkNckjrXGeIIprPxFFdRHAlIwem
-COtdmxrG8Q2cd/ZNExw45RvQ1bVjim+dWNzw7eaTD4mN3dndCQCo6hmI5zXpj/Ea/wBHjkh0kwRW
-xXEfl4yTxXzXZalJDL9nuWKMmRnHcV2Hh3WreCyYXW2SWQhd5P3F6n+lS43d2cTm6d7Ox9EWPxH1
-ODQxPqWpCaSU/ukUc4z3/WvKW8UhviAdaMewYZG98gj9c1ymoa8LyWOJHwkTDaVPb0qpr+q2m6Nb
-cfvNo349az9mou9iZVXNWbub3jm98/Vza2ReV7lsJg/e3dsV654UR9N0K0sZP9ZDGFbHr3rzL4P+
-H7rXfEEWr3I3W1qf3IYdW9fwqDxf4k8UeH/G95p08kscHmk25dPlZT0we9YTj7SXKjpw1aNG8mj3
-FLv5ccU959ycnmvKPDnxB82YQarGsZPAlTp+IrvIr1ZIgySKwIyCOhFYTpyg9T0qWIhVV4svzPvf
-IdhgY4orPachj81FRdmtzxqdiZmJ9aQEgdqZcPtmbJ71DJcAZ5r20kkeXJtsfPIQDwPzrG1a+S3i
-LyHAHvmp7y7HOD1rlNdm+1T7Acovf3o+J2RMpezjzMvrob67pX9o2ShZlYgg/wAWKxZLLWLZ/Ke3
-mVh14yK9M+BMC3dre2ko3LHKCB7EV7EngeGQJdQ7HyBkMKS0djgq1W3c+XtK03U522RwzsTwNiEk
-ntXoHgf4calql9El/G8UZbLfLyfr7V9FeGvh+s+0Lbxxcglu2K1NW1nwN4Gk/wBLuI57tV5jjwzE
-/QVNS+0dWYRqNvXRFv4eeCodKsY1ggVIY1G3K4z714h+1Jqul3GpwaXYeXJLbzgyyrg4b+6D+HNb
-vjz436zq9m+naHF/ZdkeGfOZXH17V4Vqt2b29K+ZuOc5bnce5zWdPBShL2lTfojSeJhy+zp/NjVz
-1Bwa6DSfFGq6fbJFDKrov8DjPFcu97ZxsUe4jVhwVJ5Bpp1mwQiLewJPXacVq6fNpYyjOUXdHoKf
-EG8VQHsInbuVcgflRXnt5fIs2FYHgcgUVi8LG+xusdW/mN7U2KgEVkTzPt60UVfQ9eHxGHrV1MGi
-iD4V25x1qvdgLAMd6KK0pbHm4x++dp8FtUubLxJ5EIjMc+A4Za+qfD8pe1JZVOBmiinW3RyRPMfi
-R8QPE638+k2l6LK0Hylbddhb6nOa80mlkcmWR2kcnlnOSaKK7qCXKcNdu5narcSrAoBxvODWJIga
-VckjDdqKKwq/EaQ0gUdbjQ6mr7QGBUcd6tPBC6gtGpOOuKKKie5qn7qIpEXd0HSiiimSf//Z`
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/userid.go b/vendor/golang.org/x/crypto/openpgp/packet/userid.go
deleted file mode 100644
index d6bea7d..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/userid.go
+++ /dev/null
@@ -1,160 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"io"
-	"io/ioutil"
-	"strings"
-)
-
-// UserId contains text that is intended to represent the name and email
-// address of the key holder. See RFC 4880, section 5.11. By convention, this
-// takes the form "Full Name (Comment) <email@example.com>"
-type UserId struct {
-	Id string // By convention, this takes the form "Full Name (Comment) <email@example.com>" which is split out in the fields below.
-
-	Name, Comment, Email string
-}
-
-func hasInvalidCharacters(s string) bool {
-	for _, c := range s {
-		switch c {
-		case '(', ')', '<', '>', 0:
-			return true
-		}
-	}
-	return false
-}
-
-// NewUserId returns a UserId or nil if any of the arguments contain invalid
-// characters. The invalid characters are '\x00', '(', ')', '<' and '>'
-func NewUserId(name, comment, email string) *UserId {
-	// RFC 4880 doesn't deal with the structure of userid strings; the
-	// name, comment and email form is just a convention. However, there's
-	// no convention about escaping the metacharacters and GPG just refuses
-	// to create user ids where, say, the name contains a '('. We mirror
-	// this behaviour.
-
-	if hasInvalidCharacters(name) || hasInvalidCharacters(comment) || hasInvalidCharacters(email) {
-		return nil
-	}
-
-	uid := new(UserId)
-	uid.Name, uid.Comment, uid.Email = name, comment, email
-	uid.Id = name
-	if len(comment) > 0 {
-		if len(uid.Id) > 0 {
-			uid.Id += " "
-		}
-		uid.Id += "("
-		uid.Id += comment
-		uid.Id += ")"
-	}
-	if len(email) > 0 {
-		if len(uid.Id) > 0 {
-			uid.Id += " "
-		}
-		uid.Id += "<"
-		uid.Id += email
-		uid.Id += ">"
-	}
-	return uid
-}
-
-func (uid *UserId) parse(r io.Reader) (err error) {
-	// RFC 4880, section 5.11
-	b, err := ioutil.ReadAll(r)
-	if err != nil {
-		return
-	}
-	uid.Id = string(b)
-	uid.Name, uid.Comment, uid.Email = parseUserId(uid.Id)
-	return
-}
-
-// Serialize marshals uid to w in the form of an OpenPGP packet, including
-// header.
-func (uid *UserId) Serialize(w io.Writer) error {
-	err := serializeHeader(w, packetTypeUserId, len(uid.Id))
-	if err != nil {
-		return err
-	}
-	_, err = w.Write([]byte(uid.Id))
-	return err
-}
-
-// parseUserId extracts the name, comment and email from a user id string that
-// is formatted as "Full Name (Comment) <email@example.com>".
-func parseUserId(id string) (name, comment, email string) {
-	var n, c, e struct {
-		start, end int
-	}
-	var state int
-
-	for offset, rune := range id {
-		switch state {
-		case 0:
-			// Entering name
-			n.start = offset
-			state = 1
-			fallthrough
-		case 1:
-			// In name
-			if rune == '(' {
-				state = 2
-				n.end = offset
-			} else if rune == '<' {
-				state = 5
-				n.end = offset
-			}
-		case 2:
-			// Entering comment
-			c.start = offset
-			state = 3
-			fallthrough
-		case 3:
-			// In comment
-			if rune == ')' {
-				state = 4
-				c.end = offset
-			}
-		case 4:
-			// Between comment and email
-			if rune == '<' {
-				state = 5
-			}
-		case 5:
-			// Entering email
-			e.start = offset
-			state = 6
-			fallthrough
-		case 6:
-			// In email
-			if rune == '>' {
-				state = 7
-				e.end = offset
-			}
-		default:
-			// After email
-		}
-	}
-	switch state {
-	case 1:
-		// ended in the name
-		n.end = len(id)
-	case 3:
-		// ended in comment
-		c.end = len(id)
-	case 6:
-		// ended in email
-		e.end = len(id)
-	}
-
-	name = strings.TrimSpace(id[n.start:n.end])
-	comment = strings.TrimSpace(id[c.start:c.end])
-	email = strings.TrimSpace(id[e.start:e.end])
-	return
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/packet/userid_test.go b/vendor/golang.org/x/crypto/openpgp/packet/userid_test.go
deleted file mode 100644
index 2968193..0000000
--- a/vendor/golang.org/x/crypto/openpgp/packet/userid_test.go
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package packet
-
-import (
-	"testing"
-)
-
-var userIdTests = []struct {
-	id                   string
-	name, comment, email string
-}{
-	{"", "", "", ""},
-	{"John Smith", "John Smith", "", ""},
-	{"John Smith ()", "John Smith", "", ""},
-	{"John Smith () <>", "John Smith", "", ""},
-	{"(comment", "", "comment", ""},
-	{"(comment)", "", "comment", ""},
-	{"<email", "", "", "email"},
-	{"<email>   sdfk", "", "", "email"},
-	{"  John Smith  (  Comment ) asdkflj < email > lksdfj", "John Smith", "Comment", "email"},
-	{"  John Smith  < email > lksdfj", "John Smith", "", "email"},
-	{"(<foo", "", "<foo", ""},
-	{"René Descartes (العربي)", "René Descartes", "العربي", ""},
-}
-
-func TestParseUserId(t *testing.T) {
-	for i, test := range userIdTests {
-		name, comment, email := parseUserId(test.id)
-		if name != test.name {
-			t.Errorf("%d: name mismatch got:%s want:%s", i, name, test.name)
-		}
-		if comment != test.comment {
-			t.Errorf("%d: comment mismatch got:%s want:%s", i, comment, test.comment)
-		}
-		if email != test.email {
-			t.Errorf("%d: email mismatch got:%s want:%s", i, email, test.email)
-		}
-	}
-}
-
-var newUserIdTests = []struct {
-	name, comment, email, id string
-}{
-	{"foo", "", "", "foo"},
-	{"", "bar", "", "(bar)"},
-	{"", "", "baz", "<baz>"},
-	{"foo", "bar", "", "foo (bar)"},
-	{"foo", "", "baz", "foo <baz>"},
-	{"", "bar", "baz", "(bar) <baz>"},
-	{"foo", "bar", "baz", "foo (bar) <baz>"},
-}
-
-func TestNewUserId(t *testing.T) {
-	for i, test := range newUserIdTests {
-		uid := NewUserId(test.name, test.comment, test.email)
-		if uid == nil {
-			t.Errorf("#%d: returned nil", i)
-			continue
-		}
-		if uid.Id != test.id {
-			t.Errorf("#%d: got '%s', want '%s'", i, uid.Id, test.id)
-		}
-	}
-}
-
-var invalidNewUserIdTests = []struct {
-	name, comment, email string
-}{
-	{"foo(", "", ""},
-	{"foo<", "", ""},
-	{"", "bar)", ""},
-	{"", "bar<", ""},
-	{"", "", "baz>"},
-	{"", "", "baz)"},
-	{"", "", "baz\x00"},
-}
-
-func TestNewUserIdWithInvalidInput(t *testing.T) {
-	for i, test := range invalidNewUserIdTests {
-		if uid := NewUserId(test.name, test.comment, test.email); uid != nil {
-			t.Errorf("#%d: returned non-nil value: %#v", i, uid)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/read.go b/vendor/golang.org/x/crypto/openpgp/read.go
deleted file mode 100644
index 6ec664f..0000000
--- a/vendor/golang.org/x/crypto/openpgp/read.go
+++ /dev/null
@@ -1,442 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package openpgp implements high level operations on OpenPGP messages.
-package openpgp // import "golang.org/x/crypto/openpgp"
-
-import (
-	"crypto"
-	_ "crypto/sha256"
-	"hash"
-	"io"
-	"strconv"
-
-	"golang.org/x/crypto/openpgp/armor"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/packet"
-)
-
-// SignatureType is the armor type for a PGP signature.
-var SignatureType = "PGP SIGNATURE"
-
-// readArmored reads an armored block with the given type.
-func readArmored(r io.Reader, expectedType string) (body io.Reader, err error) {
-	block, err := armor.Decode(r)
-	if err != nil {
-		return
-	}
-
-	if block.Type != expectedType {
-		return nil, errors.InvalidArgumentError("expected '" + expectedType + "', got: " + block.Type)
-	}
-
-	return block.Body, nil
-}
-
-// MessageDetails contains the result of parsing an OpenPGP encrypted and/or
-// signed message.
-type MessageDetails struct {
-	IsEncrypted              bool                // true if the message was encrypted.
-	EncryptedToKeyIds        []uint64            // the list of recipient key ids.
-	IsSymmetricallyEncrypted bool                // true if a passphrase could have decrypted the message.
-	DecryptedWith            Key                 // the private key used to decrypt the message, if any.
-	IsSigned                 bool                // true if the message is signed.
-	SignedByKeyId            uint64              // the key id of the signer, if any.
-	SignedBy                 *Key                // the key of the signer, if available.
-	LiteralData              *packet.LiteralData // the metadata of the contents
-	UnverifiedBody           io.Reader           // the contents of the message.
-
-	// If IsSigned is true and SignedBy is non-zero then the signature will
-	// be verified as UnverifiedBody is read. The signature cannot be
-	// checked until the whole of UnverifiedBody is read so UnverifiedBody
-	// must be consumed until EOF before the data can be trusted. Even if a
-	// message isn't signed (or the signer is unknown) the data may contain
-	// an authentication code that is only checked once UnverifiedBody has
-	// been consumed. Once EOF has been seen, the following fields are
-	// valid. (An authentication code failure is reported as a
-	// SignatureError error when reading from UnverifiedBody.)
-	SignatureError error               // nil if the signature is good.
-	Signature      *packet.Signature   // the signature packet itself, if v4 (default)
-	SignatureV3    *packet.SignatureV3 // the signature packet if it is a v2 or v3 signature
-
-	decrypted io.ReadCloser
-}
-
-// A PromptFunction is used as a callback by functions that may need to decrypt
-// a private key, or prompt for a passphrase. It is called with a list of
-// acceptable, encrypted private keys and a boolean that indicates whether a
-// passphrase is usable. It should either decrypt a private key or return a
-// passphrase to try. If the decrypted private key or given passphrase isn't
-// correct, the function will be called again, forever. Any error returned will
-// be passed up.
-type PromptFunction func(keys []Key, symmetric bool) ([]byte, error)
-
-// A keyEnvelopePair is used to store a private key with the envelope that
-// contains a symmetric key, encrypted with that key.
-type keyEnvelopePair struct {
-	key          Key
-	encryptedKey *packet.EncryptedKey
-}
-
-// ReadMessage parses an OpenPGP message that may be signed and/or encrypted.
-// The given KeyRing should contain both public keys (for signature
-// verification) and, possibly encrypted, private keys for decrypting.
-// If config is nil, sensible defaults will be used.
-func ReadMessage(r io.Reader, keyring KeyRing, prompt PromptFunction, config *packet.Config) (md *MessageDetails, err error) {
-	var p packet.Packet
-
-	var symKeys []*packet.SymmetricKeyEncrypted
-	var pubKeys []keyEnvelopePair
-	var se *packet.SymmetricallyEncrypted
-
-	packets := packet.NewReader(r)
-	md = new(MessageDetails)
-	md.IsEncrypted = true
-
-	// The message, if encrypted, starts with a number of packets
-	// containing an encrypted decryption key. The decryption key is either
-	// encrypted to a public key, or with a passphrase. This loop
-	// collects these packets.
-ParsePackets:
-	for {
-		p, err = packets.Next()
-		if err != nil {
-			return nil, err
-		}
-		switch p := p.(type) {
-		case *packet.SymmetricKeyEncrypted:
-			// This packet contains the decryption key encrypted with a passphrase.
-			md.IsSymmetricallyEncrypted = true
-			symKeys = append(symKeys, p)
-		case *packet.EncryptedKey:
-			// This packet contains the decryption key encrypted to a public key.
-			md.EncryptedToKeyIds = append(md.EncryptedToKeyIds, p.KeyId)
-			switch p.Algo {
-			case packet.PubKeyAlgoRSA, packet.PubKeyAlgoRSAEncryptOnly, packet.PubKeyAlgoElGamal:
-				break
-			default:
-				continue
-			}
-			var keys []Key
-			if p.KeyId == 0 {
-				keys = keyring.DecryptionKeys()
-			} else {
-				keys = keyring.KeysById(p.KeyId)
-			}
-			for _, k := range keys {
-				pubKeys = append(pubKeys, keyEnvelopePair{k, p})
-			}
-		case *packet.SymmetricallyEncrypted:
-			se = p
-			break ParsePackets
-		case *packet.Compressed, *packet.LiteralData, *packet.OnePassSignature:
-			// This message isn't encrypted.
-			if len(symKeys) != 0 || len(pubKeys) != 0 {
-				return nil, errors.StructuralError("key material not followed by encrypted message")
-			}
-			packets.Unread(p)
-			return readSignedMessage(packets, nil, keyring)
-		}
-	}
-
-	var candidates []Key
-	var decrypted io.ReadCloser
-
-	// Now that we have the list of encrypted keys we need to decrypt at
-	// least one of them or, if we cannot, we need to call the prompt
-	// function so that it can decrypt a key or give us a passphrase.
-FindKey:
-	for {
-		// See if any of the keys already have a private key available
-		candidates = candidates[:0]
-		candidateFingerprints := make(map[string]bool)
-
-		for _, pk := range pubKeys {
-			if pk.key.PrivateKey == nil {
-				continue
-			}
-			if !pk.key.PrivateKey.Encrypted {
-				if len(pk.encryptedKey.Key) == 0 {
-					pk.encryptedKey.Decrypt(pk.key.PrivateKey, config)
-				}
-				if len(pk.encryptedKey.Key) == 0 {
-					continue
-				}
-				decrypted, err = se.Decrypt(pk.encryptedKey.CipherFunc, pk.encryptedKey.Key)
-				if err != nil && err != errors.ErrKeyIncorrect {
-					return nil, err
-				}
-				if decrypted != nil {
-					md.DecryptedWith = pk.key
-					break FindKey
-				}
-			} else {
-				fpr := string(pk.key.PublicKey.Fingerprint[:])
-				if v := candidateFingerprints[fpr]; v {
-					continue
-				}
-				candidates = append(candidates, pk.key)
-				candidateFingerprints[fpr] = true
-			}
-		}
-
-		if len(candidates) == 0 && len(symKeys) == 0 {
-			return nil, errors.ErrKeyIncorrect
-		}
-
-		if prompt == nil {
-			return nil, errors.ErrKeyIncorrect
-		}
-
-		passphrase, err := prompt(candidates, len(symKeys) != 0)
-		if err != nil {
-			return nil, err
-		}
-
-		// Try the symmetric passphrase first
-		if len(symKeys) != 0 && passphrase != nil {
-			for _, s := range symKeys {
-				key, cipherFunc, err := s.Decrypt(passphrase)
-				if err == nil {
-					decrypted, err = se.Decrypt(cipherFunc, key)
-					if err != nil && err != errors.ErrKeyIncorrect {
-						return nil, err
-					}
-					if decrypted != nil {
-						break FindKey
-					}
-				}
-
-			}
-		}
-	}
-
-	md.decrypted = decrypted
-	if err := packets.Push(decrypted); err != nil {
-		return nil, err
-	}
-	return readSignedMessage(packets, md, keyring)
-}
-
-// readSignedMessage reads a possibly signed message if mdin is non-zero then
-// that structure is updated and returned. Otherwise a fresh MessageDetails is
-// used.
-func readSignedMessage(packets *packet.Reader, mdin *MessageDetails, keyring KeyRing) (md *MessageDetails, err error) {
-	if mdin == nil {
-		mdin = new(MessageDetails)
-	}
-	md = mdin
-
-	var p packet.Packet
-	var h hash.Hash
-	var wrappedHash hash.Hash
-FindLiteralData:
-	for {
-		p, err = packets.Next()
-		if err != nil {
-			return nil, err
-		}
-		switch p := p.(type) {
-		case *packet.Compressed:
-			if err := packets.Push(p.Body); err != nil {
-				return nil, err
-			}
-		case *packet.OnePassSignature:
-			if !p.IsLast {
-				return nil, errors.UnsupportedError("nested signatures")
-			}
-
-			h, wrappedHash, err = hashForSignature(p.Hash, p.SigType)
-			if err != nil {
-				md = nil
-				return
-			}
-
-			md.IsSigned = true
-			md.SignedByKeyId = p.KeyId
-			keys := keyring.KeysByIdUsage(p.KeyId, packet.KeyFlagSign)
-			if len(keys) > 0 {
-				md.SignedBy = &keys[0]
-			}
-		case *packet.LiteralData:
-			md.LiteralData = p
-			break FindLiteralData
-		}
-	}
-
-	if md.SignedBy != nil {
-		md.UnverifiedBody = &signatureCheckReader{packets, h, wrappedHash, md}
-	} else if md.decrypted != nil {
-		md.UnverifiedBody = checkReader{md}
-	} else {
-		md.UnverifiedBody = md.LiteralData.Body
-	}
-
-	return md, nil
-}
-
-// hashForSignature returns a pair of hashes that can be used to verify a
-// signature. The signature may specify that the contents of the signed message
-// should be preprocessed (i.e. to normalize line endings). Thus this function
-// returns two hashes. The second should be used to hash the message itself and
-// performs any needed preprocessing.
-func hashForSignature(hashId crypto.Hash, sigType packet.SignatureType) (hash.Hash, hash.Hash, error) {
-	if !hashId.Available() {
-		return nil, nil, errors.UnsupportedError("hash not available: " + strconv.Itoa(int(hashId)))
-	}
-	h := hashId.New()
-
-	switch sigType {
-	case packet.SigTypeBinary:
-		return h, h, nil
-	case packet.SigTypeText:
-		return h, NewCanonicalTextHash(h), nil
-	}
-
-	return nil, nil, errors.UnsupportedError("unsupported signature type: " + strconv.Itoa(int(sigType)))
-}
-
-// checkReader wraps an io.Reader from a LiteralData packet. When it sees EOF
-// it closes the ReadCloser from any SymmetricallyEncrypted packet to trigger
-// MDC checks.
-type checkReader struct {
-	md *MessageDetails
-}
-
-func (cr checkReader) Read(buf []byte) (n int, err error) {
-	n, err = cr.md.LiteralData.Body.Read(buf)
-	if err == io.EOF {
-		mdcErr := cr.md.decrypted.Close()
-		if mdcErr != nil {
-			err = mdcErr
-		}
-	}
-	return
-}
-
-// signatureCheckReader wraps an io.Reader from a LiteralData packet and hashes
-// the data as it is read. When it sees an EOF from the underlying io.Reader
-// it parses and checks a trailing Signature packet and triggers any MDC checks.
-type signatureCheckReader struct {
-	packets        *packet.Reader
-	h, wrappedHash hash.Hash
-	md             *MessageDetails
-}
-
-func (scr *signatureCheckReader) Read(buf []byte) (n int, err error) {
-	n, err = scr.md.LiteralData.Body.Read(buf)
-	scr.wrappedHash.Write(buf[:n])
-	if err == io.EOF {
-		var p packet.Packet
-		p, scr.md.SignatureError = scr.packets.Next()
-		if scr.md.SignatureError != nil {
-			return
-		}
-
-		var ok bool
-		if scr.md.Signature, ok = p.(*packet.Signature); ok {
-			scr.md.SignatureError = scr.md.SignedBy.PublicKey.VerifySignature(scr.h, scr.md.Signature)
-		} else if scr.md.SignatureV3, ok = p.(*packet.SignatureV3); ok {
-			scr.md.SignatureError = scr.md.SignedBy.PublicKey.VerifySignatureV3(scr.h, scr.md.SignatureV3)
-		} else {
-			scr.md.SignatureError = errors.StructuralError("LiteralData not followed by Signature")
-			return
-		}
-
-		// The SymmetricallyEncrypted packet, if any, might have an
-		// unsigned hash of its own. In order to check this we need to
-		// close that Reader.
-		if scr.md.decrypted != nil {
-			mdcErr := scr.md.decrypted.Close()
-			if mdcErr != nil {
-				err = mdcErr
-			}
-		}
-	}
-	return
-}
-
-// CheckDetachedSignature takes a signed file and a detached signature and
-// returns the signer if the signature is valid. If the signer isn't known,
-// ErrUnknownIssuer is returned.
-func CheckDetachedSignature(keyring KeyRing, signed, signature io.Reader) (signer *Entity, err error) {
-	var issuerKeyId uint64
-	var hashFunc crypto.Hash
-	var sigType packet.SignatureType
-	var keys []Key
-	var p packet.Packet
-
-	packets := packet.NewReader(signature)
-	for {
-		p, err = packets.Next()
-		if err == io.EOF {
-			return nil, errors.ErrUnknownIssuer
-		}
-		if err != nil {
-			return nil, err
-		}
-
-		switch sig := p.(type) {
-		case *packet.Signature:
-			if sig.IssuerKeyId == nil {
-				return nil, errors.StructuralError("signature doesn't have an issuer")
-			}
-			issuerKeyId = *sig.IssuerKeyId
-			hashFunc = sig.Hash
-			sigType = sig.SigType
-		case *packet.SignatureV3:
-			issuerKeyId = sig.IssuerKeyId
-			hashFunc = sig.Hash
-			sigType = sig.SigType
-		default:
-			return nil, errors.StructuralError("non signature packet found")
-		}
-
-		keys = keyring.KeysByIdUsage(issuerKeyId, packet.KeyFlagSign)
-		if len(keys) > 0 {
-			break
-		}
-	}
-
-	if len(keys) == 0 {
-		panic("unreachable")
-	}
-
-	h, wrappedHash, err := hashForSignature(hashFunc, sigType)
-	if err != nil {
-		return nil, err
-	}
-
-	if _, err := io.Copy(wrappedHash, signed); err != nil && err != io.EOF {
-		return nil, err
-	}
-
-	for _, key := range keys {
-		switch sig := p.(type) {
-		case *packet.Signature:
-			err = key.PublicKey.VerifySignature(h, sig)
-		case *packet.SignatureV3:
-			err = key.PublicKey.VerifySignatureV3(h, sig)
-		default:
-			panic("unreachable")
-		}
-
-		if err == nil {
-			return key.Entity, nil
-		}
-	}
-
-	return nil, err
-}
-
-// CheckArmoredDetachedSignature performs the same actions as
-// CheckDetachedSignature but expects the signature to be armored.
-func CheckArmoredDetachedSignature(keyring KeyRing, signed, signature io.Reader) (signer *Entity, err error) {
-	body, err := readArmored(signature, SignatureType)
-	if err != nil {
-		return
-	}
-
-	return CheckDetachedSignature(keyring, signed, body)
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/read_test.go b/vendor/golang.org/x/crypto/openpgp/read_test.go
deleted file mode 100644
index f5bba30..0000000
--- a/vendor/golang.org/x/crypto/openpgp/read_test.go
+++ /dev/null
@@ -1,613 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import (
-	"bytes"
-	_ "crypto/sha512"
-	"encoding/hex"
-	"io"
-	"io/ioutil"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/openpgp/armor"
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-func readerFromHex(s string) io.Reader {
-	data, err := hex.DecodeString(s)
-	if err != nil {
-		panic("readerFromHex: bad input")
-	}
-	return bytes.NewBuffer(data)
-}
-
-func TestReadKeyRing(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	if len(kring) != 2 || uint32(kring[0].PrimaryKey.KeyId) != 0xC20C31BB || uint32(kring[1].PrimaryKey.KeyId) != 0x1E35246B {
-		t.Errorf("bad keyring: %#v", kring)
-	}
-}
-
-func TestRereadKeyRing(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-	if err != nil {
-		t.Errorf("error in initial parse: %s", err)
-		return
-	}
-	out := new(bytes.Buffer)
-	err = kring[0].Serialize(out)
-	if err != nil {
-		t.Errorf("error in serialization: %s", err)
-		return
-	}
-	kring, err = ReadKeyRing(out)
-	if err != nil {
-		t.Errorf("error in second parse: %s", err)
-		return
-	}
-
-	if len(kring) != 1 || uint32(kring[0].PrimaryKey.KeyId) != 0xC20C31BB {
-		t.Errorf("bad keyring: %#v", kring)
-	}
-}
-
-func TestReadPrivateKeyRing(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(testKeys1And2PrivateHex))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	if len(kring) != 2 || uint32(kring[0].PrimaryKey.KeyId) != 0xC20C31BB || uint32(kring[1].PrimaryKey.KeyId) != 0x1E35246B || kring[0].PrimaryKey == nil {
-		t.Errorf("bad keyring: %#v", kring)
-	}
-}
-
-func TestReadDSAKey(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(dsaTestKeyHex))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	if len(kring) != 1 || uint32(kring[0].PrimaryKey.KeyId) != 0x0CCC0360 {
-		t.Errorf("bad parse: %#v", kring)
-	}
-}
-
-func TestReadP256Key(t *testing.T) {
-	kring, err := ReadKeyRing(readerFromHex(p256TestKeyHex))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	if len(kring) != 1 || uint32(kring[0].PrimaryKey.KeyId) != 0x5918513E {
-		t.Errorf("bad parse: %#v", kring)
-	}
-}
-
-func TestDSAHashTruncatation(t *testing.T) {
-	// dsaKeyWithSHA512 was generated with GnuPG and --cert-digest-algo
-	// SHA512 in order to require DSA hash truncation to verify correctly.
-	_, err := ReadKeyRing(readerFromHex(dsaKeyWithSHA512))
-	if err != nil {
-		t.Error(err)
-	}
-}
-
-func TestGetKeyById(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-
-	keys := kring.KeysById(0xa34d7e18c20c31bb)
-	if len(keys) != 1 || keys[0].Entity != kring[0] {
-		t.Errorf("bad result for 0xa34d7e18c20c31bb: %#v", keys)
-	}
-
-	keys = kring.KeysById(0xfd94408d4543314f)
-	if len(keys) != 1 || keys[0].Entity != kring[0] {
-		t.Errorf("bad result for 0xa34d7e18c20c31bb: %#v", keys)
-	}
-}
-
-func checkSignedMessage(t *testing.T, signedHex, expected string) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-
-	md, err := ReadMessage(readerFromHex(signedHex), kring, nil, nil)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	if !md.IsSigned || md.SignedByKeyId != 0xa34d7e18c20c31bb || md.SignedBy == nil || md.IsEncrypted || md.IsSymmetricallyEncrypted || len(md.EncryptedToKeyIds) != 0 || md.DecryptedWith != (Key{}) {
-		t.Errorf("bad MessageDetails: %#v", md)
-	}
-
-	contents, err := ioutil.ReadAll(md.UnverifiedBody)
-	if err != nil {
-		t.Errorf("error reading UnverifiedBody: %s", err)
-	}
-	if string(contents) != expected {
-		t.Errorf("bad UnverifiedBody got:%s want:%s", string(contents), expected)
-	}
-	if md.SignatureError != nil || md.Signature == nil {
-		t.Errorf("failed to validate: %s", md.SignatureError)
-	}
-}
-
-func TestSignedMessage(t *testing.T) {
-	checkSignedMessage(t, signedMessageHex, signedInput)
-}
-
-func TestTextSignedMessage(t *testing.T) {
-	checkSignedMessage(t, signedTextMessageHex, signedTextInput)
-}
-
-// The reader should detect "compressed quines", which are compressed
-// packets that expand into themselves and cause an infinite recursive
-// parsing loop.
-// The packet in this test case comes from Taylor R. Campbell at
-// http://mumble.net/~campbell/misc/pgp-quine/
-func TestCampbellQuine(t *testing.T) {
-	md, err := ReadMessage(readerFromHex(campbellQuine), nil, nil, nil)
-	if md != nil {
-		t.Errorf("Reading a compressed quine should not return any data: %#v", md)
-	}
-	structural, ok := err.(errors.StructuralError)
-	if !ok {
-		t.Fatalf("Unexpected class of error: %T", err)
-	}
-	if !strings.Contains(string(structural), "too many layers of packets") {
-		t.Fatalf("Unexpected error: %s", err)
-	}
-}
-
-var signedEncryptedMessageTests = []struct {
-	keyRingHex       string
-	messageHex       string
-	signedByKeyId    uint64
-	encryptedToKeyId uint64
-}{
-	{
-		testKeys1And2PrivateHex,
-		signedEncryptedMessageHex,
-		0xa34d7e18c20c31bb,
-		0x2a67d68660df41c7,
-	},
-	{
-		dsaElGamalTestKeysHex,
-		signedEncryptedMessage2Hex,
-		0x33af447ccd759b09,
-		0xcf6a7abcd43e3673,
-	},
-}
-
-func TestSignedEncryptedMessage(t *testing.T) {
-	for i, test := range signedEncryptedMessageTests {
-		expected := "Signed and encrypted message\n"
-		kring, _ := ReadKeyRing(readerFromHex(test.keyRingHex))
-		prompt := func(keys []Key, symmetric bool) ([]byte, error) {
-			if symmetric {
-				t.Errorf("prompt: message was marked as symmetrically encrypted")
-				return nil, errors.ErrKeyIncorrect
-			}
-
-			if len(keys) == 0 {
-				t.Error("prompt: no keys requested")
-				return nil, errors.ErrKeyIncorrect
-			}
-
-			err := keys[0].PrivateKey.Decrypt([]byte("passphrase"))
-			if err != nil {
-				t.Errorf("prompt: error decrypting key: %s", err)
-				return nil, errors.ErrKeyIncorrect
-			}
-
-			return nil, nil
-		}
-
-		md, err := ReadMessage(readerFromHex(test.messageHex), kring, prompt, nil)
-		if err != nil {
-			t.Errorf("#%d: error reading message: %s", i, err)
-			return
-		}
-
-		if !md.IsSigned || md.SignedByKeyId != test.signedByKeyId || md.SignedBy == nil || !md.IsEncrypted || md.IsSymmetricallyEncrypted || len(md.EncryptedToKeyIds) == 0 || md.EncryptedToKeyIds[0] != test.encryptedToKeyId {
-			t.Errorf("#%d: bad MessageDetails: %#v", i, md)
-		}
-
-		contents, err := ioutil.ReadAll(md.UnverifiedBody)
-		if err != nil {
-			t.Errorf("#%d: error reading UnverifiedBody: %s", i, err)
-		}
-		if string(contents) != expected {
-			t.Errorf("#%d: bad UnverifiedBody got:%s want:%s", i, string(contents), expected)
-		}
-
-		if md.SignatureError != nil || md.Signature == nil {
-			t.Errorf("#%d: failed to validate: %s", i, md.SignatureError)
-		}
-	}
-}
-
-func TestUnspecifiedRecipient(t *testing.T) {
-	expected := "Recipient unspecified\n"
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2PrivateHex))
-
-	md, err := ReadMessage(readerFromHex(recipientUnspecifiedHex), kring, nil, nil)
-	if err != nil {
-		t.Errorf("error reading message: %s", err)
-		return
-	}
-
-	contents, err := ioutil.ReadAll(md.UnverifiedBody)
-	if err != nil {
-		t.Errorf("error reading UnverifiedBody: %s", err)
-	}
-	if string(contents) != expected {
-		t.Errorf("bad UnverifiedBody got:%s want:%s", string(contents), expected)
-	}
-}
-
-func TestSymmetricallyEncrypted(t *testing.T) {
-	firstTimeCalled := true
-
-	prompt := func(keys []Key, symmetric bool) ([]byte, error) {
-		if len(keys) != 0 {
-			t.Errorf("prompt: len(keys) = %d (want 0)", len(keys))
-		}
-
-		if !symmetric {
-			t.Errorf("symmetric is not set")
-		}
-
-		if firstTimeCalled {
-			firstTimeCalled = false
-			return []byte("wrongpassword"), nil
-		}
-
-		return []byte("password"), nil
-	}
-
-	md, err := ReadMessage(readerFromHex(symmetricallyEncryptedCompressedHex), nil, prompt, nil)
-	if err != nil {
-		t.Errorf("ReadMessage: %s", err)
-		return
-	}
-
-	contents, err := ioutil.ReadAll(md.UnverifiedBody)
-	if err != nil {
-		t.Errorf("ReadAll: %s", err)
-	}
-
-	expectedCreationTime := uint32(1295992998)
-	if md.LiteralData.Time != expectedCreationTime {
-		t.Errorf("LiteralData.Time is %d, want %d", md.LiteralData.Time, expectedCreationTime)
-	}
-
-	const expected = "Symmetrically encrypted.\n"
-	if string(contents) != expected {
-		t.Errorf("contents got: %s want: %s", string(contents), expected)
-	}
-}
-
-func testDetachedSignature(t *testing.T, kring KeyRing, signature io.Reader, sigInput, tag string, expectedSignerKeyId uint64) {
-	signed := bytes.NewBufferString(sigInput)
-	signer, err := CheckDetachedSignature(kring, signed, signature)
-	if err != nil {
-		t.Errorf("%s: signature error: %s", tag, err)
-		return
-	}
-	if signer == nil {
-		t.Errorf("%s: signer is nil", tag)
-		return
-	}
-	if signer.PrimaryKey.KeyId != expectedSignerKeyId {
-		t.Errorf("%s: wrong signer got:%x want:%x", tag, signer.PrimaryKey.KeyId, expectedSignerKeyId)
-	}
-}
-
-func TestDetachedSignature(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-	testDetachedSignature(t, kring, readerFromHex(detachedSignatureHex), signedInput, "binary", testKey1KeyId)
-	testDetachedSignature(t, kring, readerFromHex(detachedSignatureTextHex), signedInput, "text", testKey1KeyId)
-	testDetachedSignature(t, kring, readerFromHex(detachedSignatureV3TextHex), signedInput, "v3", testKey1KeyId)
-
-	incorrectSignedInput := signedInput + "X"
-	_, err := CheckDetachedSignature(kring, bytes.NewBufferString(incorrectSignedInput), readerFromHex(detachedSignatureHex))
-	if err == nil {
-		t.Fatal("CheckDetachedSignature returned without error for bad signature")
-	}
-	if err == errors.ErrUnknownIssuer {
-		t.Fatal("CheckDetachedSignature returned ErrUnknownIssuer when the signer was known, but the signature invalid")
-	}
-}
-
-func TestDetachedSignatureDSA(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(dsaTestKeyHex))
-	testDetachedSignature(t, kring, readerFromHex(detachedSignatureDSAHex), signedInput, "binary", testKey3KeyId)
-}
-
-func TestMultipleSignaturePacketsDSA(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(dsaTestKeyHex))
-	testDetachedSignature(t, kring, readerFromHex(missingHashFunctionHex+detachedSignatureDSAHex), signedInput, "binary", testKey3KeyId)
-}
-
-func TestDetachedSignatureP256(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(p256TestKeyHex))
-	testDetachedSignature(t, kring, readerFromHex(detachedSignatureP256Hex), signedInput, "binary", testKeyP256KeyId)
-}
-
-func testHashFunctionError(t *testing.T, signatureHex string) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-	_, err := CheckDetachedSignature(kring, nil, readerFromHex(signatureHex))
-	if err == nil {
-		t.Fatal("Packet with bad hash type was correctly parsed")
-	}
-	unsupported, ok := err.(errors.UnsupportedError)
-	if !ok {
-		t.Fatalf("Unexpected class of error: %s", err)
-	}
-	if !strings.Contains(string(unsupported), "hash ") {
-		t.Fatalf("Unexpected error: %s", err)
-	}
-}
-
-func TestUnknownHashFunction(t *testing.T) {
-	// unknownHashFunctionHex contains a signature packet with hash
-	// function type 153 (which isn't a real hash function id).
-	testHashFunctionError(t, unknownHashFunctionHex)
-}
-
-func TestMissingHashFunction(t *testing.T) {
-	// missingHashFunctionHex contains a signature packet that uses
-	// RIPEMD160, which isn't compiled in.  Since that's the only signature
-	// packet we don't find any suitable packets and end up with ErrUnknownIssuer
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2Hex))
-	_, err := CheckDetachedSignature(kring, nil, readerFromHex(missingHashFunctionHex))
-	if err == nil {
-		t.Fatal("Packet with missing hash type was correctly parsed")
-	}
-	if err != errors.ErrUnknownIssuer {
-		t.Fatalf("Unexpected class of error: %s", err)
-	}
-}
-
-func TestReadingArmoredPrivateKey(t *testing.T) {
-	el, err := ReadArmoredKeyRing(bytes.NewBufferString(armoredPrivateKeyBlock))
-	if err != nil {
-		t.Error(err)
-	}
-	if len(el) != 1 {
-		t.Errorf("got %d entities, wanted 1\n", len(el))
-	}
-}
-
-func TestReadingArmoredPublicKey(t *testing.T) {
-	el, err := ReadArmoredKeyRing(bytes.NewBufferString(e2ePublicKey))
-	if err != nil {
-		t.Error(err)
-	}
-	if len(el) != 1 {
-		t.Errorf("didn't get a valid entity")
-	}
-}
-
-func TestNoArmoredData(t *testing.T) {
-	_, err := ReadArmoredKeyRing(bytes.NewBufferString("foo"))
-	if _, ok := err.(errors.InvalidArgumentError); !ok {
-		t.Errorf("error was not an InvalidArgumentError: %s", err)
-	}
-}
-
-func testReadMessageError(t *testing.T, messageHex string) {
-	buf, err := hex.DecodeString(messageHex)
-	if err != nil {
-		t.Errorf("hex.DecodeString(): %v", err)
-	}
-
-	kr, err := ReadKeyRing(new(bytes.Buffer))
-	if err != nil {
-		t.Errorf("ReadKeyring(): %v", err)
-	}
-
-	_, err = ReadMessage(bytes.NewBuffer(buf), kr,
-		func([]Key, bool) ([]byte, error) {
-			return []byte("insecure"), nil
-		}, nil)
-
-	if err == nil {
-		t.Errorf("ReadMessage(): Unexpected nil error")
-	}
-}
-
-func TestIssue11503(t *testing.T) {
-	testReadMessageError(t, "8c040402000aa430aa8228b9248b01fc899a91197130303030")
-}
-
-func TestIssue11504(t *testing.T) {
-	testReadMessageError(t, "9303000130303030303030303030983002303030303030030000000130")
-}
-
-// TestSignatureV3Message tests the verification of V3 signature, generated
-// with a modern V4-style key.  Some people have their clients set to generate
-// V3 signatures, so it's useful to be able to verify them.
-func TestSignatureV3Message(t *testing.T) {
-	sig, err := armor.Decode(strings.NewReader(signedMessageV3))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	key, err := ReadArmoredKeyRing(strings.NewReader(keyV4forVerifyingSignedMessageV3))
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	md, err := ReadMessage(sig.Body, key, nil, nil)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	_, err = ioutil.ReadAll(md.UnverifiedBody)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-
-	// We'll see a sig error here after reading in the UnverifiedBody above,
-	// if there was one to see.
-	if err = md.SignatureError; err != nil {
-		t.Error(err)
-		return
-	}
-
-	if md.SignatureV3 == nil {
-		t.Errorf("No available signature after checking signature")
-		return
-	}
-	if md.Signature != nil {
-		t.Errorf("Did not expect a signature V4 back")
-		return
-	}
-	return
-}
-
-const testKey1KeyId = 0xA34D7E18C20C31BB
-const testKey3KeyId = 0x338934250CCC0360
-const testKeyP256KeyId = 0xd44a2c495918513e
-
-const signedInput = "Signed message\nline 2\nline 3\n"
-const signedTextInput = "Signed message\r\nline 2\r\nline 3\r\n"
-
-const recipientUnspecifiedHex = "848c0300000000000000000103ff62d4d578d03cf40c3da998dfe216c074fa6ddec5e31c197c9666ba292830d91d18716a80f699f9d897389a90e6d62d0238f5f07a5248073c0f24920e4bc4a30c2d17ee4e0cae7c3d4aaa4e8dced50e3010a80ee692175fa0385f62ecca4b56ee6e9980aa3ec51b61b077096ac9e800edaf161268593eedb6cc7027ff5cb32745d250010d407a6221ae22ef18469b444f2822478c4d190b24d36371a95cb40087cdd42d9399c3d06a53c0673349bfb607927f20d1e122bde1e2bf3aa6cae6edf489629bcaa0689539ae3b718914d88ededc3b"
-
-const detachedSignatureHex = "889c04000102000605024d449cd1000a0910a34d7e18c20c31bb167603ff57718d09f28a519fdc7b5a68b6a3336da04df85e38c5cd5d5bd2092fa4629848a33d85b1729402a2aab39c3ac19f9d573f773cc62c264dc924c067a79dfd8a863ae06c7c8686120760749f5fd9b1e03a64d20a7df3446ddc8f0aeadeaeba7cbaee5c1e366d65b6a0c6cc749bcb912d2f15013f812795c2e29eb7f7b77f39ce77"
-
-const detachedSignatureTextHex = "889c04010102000605024d449d21000a0910a34d7e18c20c31bbc8c60400a24fbef7342603a41cb1165767bd18985d015fb72fe05db42db36cfb2f1d455967f1e491194fbf6cf88146222b23bf6ffbd50d17598d976a0417d3192ff9cc0034fd00f287b02e90418bbefe609484b09231e4e7a5f3562e199bf39909ab5276c4d37382fe088f6b5c3426fc1052865da8b3ab158672d58b6264b10823dc4b39"
-
-const detachedSignatureV3TextHex = "8900950305005255c25ca34d7e18c20c31bb0102bb3f04009f6589ef8a028d6e54f6eaf25432e590d31c3a41f4710897585e10c31e5e332c7f9f409af8512adceaff24d0da1474ab07aa7bce4f674610b010fccc5b579ae5eb00a127f272fb799f988ab8e4574c141da6dbfecfef7e6b2c478d9a3d2551ba741f260ee22bec762812f0053e05380bfdd55ad0f22d8cdf71b233fe51ae8a24"
-
-const detachedSignatureDSAHex = "884604001102000605024d6c4eac000a0910338934250ccc0360f18d00a087d743d6405ed7b87755476629600b8b694a39e900a0abff8126f46faf1547c1743c37b21b4ea15b8f83"
-
-const detachedSignatureP256Hex = "885e0400130a0006050256e5bb00000a0910d44a2c495918513edef001009841a4f792beb0befccb35c8838a6a87d9b936beaa86db6745ddc7b045eee0cf00fd1ac1f78306b17e965935dd3f8bae4587a76587e4af231efe19cc4011a8434817"
-
-const testKeys1And2Hex = "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"
-
-const testKeys1And2PrivateHex = "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"
-
-const dsaElGamalTestKeysHex = "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"
-
-const signedMessageHex = "a3019bc0cbccc0c4b8d8b74ee2108fe16ec6d3ca490cbe362d3f8333d3f352531472538b8b13d353b97232f352158c20943157c71c16064626063656269052062e4e01987e9b6fccff4b7df3a34c534b23e679cbec3bc0f8f6e64dfb4b55fe3f8efa9ce110ddb5cd79faf1d753c51aecfa669f7e7aa043436596cccc3359cb7dd6bbe9ecaa69e5989d9e57209571edc0b2fa7f57b9b79a64ee6e99ce1371395fee92fec2796f7b15a77c386ff668ee27f6d38f0baa6c438b561657377bf6acff3c5947befd7bf4c196252f1d6e5c524d0300"
-
-const signedTextMessageHex = "a3019bc0cbccc8c4b8d8b74ee2108fe16ec6d36a250cbece0c178233d3f352531472538b8b13d35379b97232f352158ca0b4312f57c71c1646462606365626906a062e4e019811591798ff99bf8afee860b0d8a8c2a85c3387e3bcf0bb3b17987f2bbcfab2aa526d930cbfd3d98757184df3995c9f3e7790e36e3e9779f06089d4c64e9e47dd6202cb6e9bc73c5d11bb59fbaf89d22d8dc7cf199ddf17af96e77c5f65f9bbed56f427bd8db7af37f6c9984bf9385efaf5f184f986fb3e6adb0ecfe35bbf92d16a7aa2a344fb0bc52fb7624f0200"
-
-const signedEncryptedMessageHex = "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"
-
-const signedEncryptedMessage2Hex = "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"
-
-const symmetricallyEncryptedCompressedHex = "8c0d04030302eb4a03808145d0d260c92f714339e13de5a79881216431925bf67ee2898ea61815f07894cd0703c50d0a76ef64d482196f47a8bc729af9b80bb6"
-
-const dsaTestKeyHex = "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"
-
-const dsaTestKeyPrivateHex = "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"
-
-const p256TestKeyHex = "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"
-
-const p256TestKeyPrivateHex = "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"
-
-const armoredPrivateKeyBlock = `-----BEGIN PGP PRIVATE KEY BLOCK-----
-Version: GnuPG v1.4.10 (GNU/Linux)
-
-lQHYBE2rFNoBBADFwqWQIW/DSqcB4yCQqnAFTJ27qS5AnB46ccAdw3u4Greeu3Bp
-idpoHdjULy7zSKlwR1EA873dO/k/e11Ml3dlAFUinWeejWaK2ugFP6JjiieSsrKn
-vWNicdCS4HTWn0X4sjl0ZiAygw6GNhqEQ3cpLeL0g8E9hnYzJKQ0LWJa0QARAQAB
-AAP/TB81EIo2VYNmTq0pK1ZXwUpxCrvAAIG3hwKjEzHcbQznsjNvPUihZ+NZQ6+X
-0HCfPAdPkGDCLCb6NavcSW+iNnLTrdDnSI6+3BbIONqWWdRDYJhqZCkqmG6zqSfL
-IdkJgCw94taUg5BWP/AAeQrhzjChvpMQTVKQL5mnuZbUCeMCAN5qrYMP2S9iKdnk
-VANIFj7656ARKt/nf4CBzxcpHTyB8+d2CtPDKCmlJP6vL8t58Jmih+kHJMvC0dzn
-gr5f5+sCAOOe5gt9e0am7AvQWhdbHVfJU0TQJx+m2OiCJAqGTB1nvtBLHdJnfdC9
-TnXXQ6ZXibqLyBies/xeY2sCKL5qtTMCAKnX9+9d/5yQxRyrQUHt1NYhaXZnJbHx
-q4ytu0eWz+5i68IYUSK69jJ1NWPM0T6SkqpB3KCAIv68VFm9PxqG1KmhSrQIVGVz
-dCBLZXmIuAQTAQIAIgUCTasU2gIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AA
-CgkQO9o98PRieSoLhgQAkLEZex02Qt7vGhZzMwuN0R22w3VwyYyjBx+fM3JFETy1
-ut4xcLJoJfIaF5ZS38UplgakHG0FQ+b49i8dMij0aZmDqGxrew1m4kBfjXw9B/v+
-eIqpODryb6cOSwyQFH0lQkXC040pjq9YqDsO5w0WYNXYKDnzRV0p4H1pweo2VDid
-AdgETasU2gEEAN46UPeWRqKHvA99arOxee38fBt2CI08iiWyI8T3J6ivtFGixSqV
-bRcPxYO/qLpVe5l84Nb3X71GfVXlc9hyv7CD6tcowL59hg1E/DC5ydI8K8iEpUmK
-/UnHdIY5h8/kqgGxkY/T/hgp5fRQgW1ZoZxLajVlMRZ8W4tFtT0DeA+JABEBAAEA
-A/0bE1jaaZKj6ndqcw86jd+QtD1SF+Cf21CWRNeLKnUds4FRRvclzTyUMuWPkUeX
-TaNNsUOFqBsf6QQ2oHUBBK4VCHffHCW4ZEX2cd6umz7mpHW6XzN4DECEzOVksXtc
-lUC1j4UB91DC/RNQqwX1IV2QLSwssVotPMPqhOi0ZLNY7wIA3n7DWKInxYZZ4K+6
-rQ+POsz6brEoRHwr8x6XlHenq1Oki855pSa1yXIARoTrSJkBtn5oI+f8AzrnN0BN
-oyeQAwIA/7E++3HDi5aweWrViiul9cd3rcsS0dEnksPhvS0ozCJiHsq/6GFmy7J8
-QSHZPteedBnZyNp5jR+H7cIfVN3KgwH/Skq4PsuPhDq5TKK6i8Pc1WW8MA6DXTdU
-nLkX7RGmMwjC0DBf7KWAlPjFaONAX3a8ndnz//fy1q7u2l9AZwrj1qa1iJ8EGAEC
-AAkFAk2rFNoCGwwACgkQO9o98PRieSo2/QP/WTzr4ioINVsvN1akKuekmEMI3LAp
-BfHwatufxxP1U+3Si/6YIk7kuPB9Hs+pRqCXzbvPRrI8NHZBmc8qIGthishdCYad
-AHcVnXjtxrULkQFGbGvhKURLvS9WnzD/m1K2zzwxzkPTzT9/Yf06O6Mal5AdugPL
-VrM0m72/jnpKo04=
-=zNCn
------END PGP PRIVATE KEY BLOCK-----`
-
-const e2ePublicKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-Charset: UTF-8
-
-xv8AAABSBAAAAAATCCqGSM49AwEHAgME1LRoXSpOxtHXDUdmuvzchyg6005qIBJ4
-sfaSxX7QgH9RV2ONUhC+WiayCNADq+UMzuR/vunSr4aQffXvuGnR383/AAAAFDxk
-Z2lsQHlhaG9vLWluYy5jb20+wv8AAACGBBATCAA4/wAAAAWCVGvAG/8AAAACiwn/
-AAAACZC2VkQCOjdvYf8AAAAFlQgJCgv/AAAAA5YBAv8AAAACngEAAE1BAP0X8veD
-24IjmI5/C6ZAfVNXxgZZFhTAACFX75jUA3oD6AEAzoSwKf1aqH6oq62qhCN/pekX
-+WAsVMBhNwzLpqtCRjLO/wAAAFYEAAAAABIIKoZIzj0DAQcCAwT50ain7vXiIRv8
-B1DO3x3cE/aattZ5sHNixJzRCXi2vQIA5QmOxZ6b5jjUekNbdHG3SZi1a2Ak5mfX
-fRxC/5VGAwEIB8L/AAAAZQQYEwgAGP8AAAAFglRrwBz/AAAACZC2VkQCOjdvYQAA
-FJAA9isX3xtGyMLYwp2F3nXm7QEdY5bq5VUcD/RJlj792VwA/1wH0pCzVLl4Q9F9
-ex7En5r7rHR5xwX82Msc+Rq9dSyO
-=7MrZ
------END PGP PUBLIC KEY BLOCK-----`
-
-const dsaKeyWithSHA512 = `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`
-
-const unknownHashFunctionHex = `8a00000040040001990006050253863c24000a09103b4fe6acc0b21f32ffff01010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101010101`
-
-const missingHashFunctionHex = `8a00000040040001030006050253863c24000a09103b4fe6acc0b21f32ffff0101010101010101010101010101010101010101010101010101010101010101010101010101`
-
-const campbellQuine = `a0b001000300fcffa0b001000d00f2ff000300fcffa0b001000d00f2ff8270a01c00000500faff8270a01c00000500faff000500faff001400ebff8270a01c00000500faff000500faff001400ebff428821c400001400ebff428821c400001400ebff428821c400001400ebff428821c400001400ebff428821c400000000ffff000000ffff000b00f4ff428821c400000000ffff000000ffff000b00f4ff0233214c40000100feff000233214c40000100feff0000`
-
-const keyV4forVerifyingSignedMessageV3 = `-----BEGIN PGP PUBLIC KEY BLOCK-----
-Comment: GPGTools - https://gpgtools.org
-
-mI0EVfxoFQEEAMBIqmbDfYygcvP6Phr1wr1XI41IF7Qixqybs/foBF8qqblD9gIY
-BKpXjnBOtbkcVOJ0nljd3/sQIfH4E0vQwK5/4YRQSI59eKOqd6Fx+fWQOLG+uu6z
-tewpeCj9LLHvibx/Sc7VWRnrznia6ftrXxJ/wHMezSab3tnGC0YPVdGNABEBAAG0
-JEdvY3J5cHRvIFRlc3QgS2V5IDx0aGVtYXhAZ21haWwuY29tPoi5BBMBCgAjBQJV
-/GgVAhsDBwsJCAcDAgEGFQgCCQoLBBYCAwECHgECF4AACgkQeXnQmhdGW9PFVAP+
-K7TU0qX5ArvIONIxh/WAweyOk884c5cE8f+3NOPOOCRGyVy0FId5A7MmD5GOQh4H
-JseOZVEVCqlmngEvtHZb3U1VYtVGE5WZ+6rQhGsMcWP5qaT4soYwMBlSYxgYwQcx
-YhN9qOr292f9j2Y//TTIJmZT4Oa+lMxhWdqTfX+qMgG4jQRV/GgVAQQArhFSiij1
-b+hT3dnapbEU+23Z1yTu1DfF6zsxQ4XQWEV3eR8v+8mEDDNcz8oyyF56k6UQ3rXi
-UMTIwRDg4V6SbZmaFbZYCOwp/EmXJ3rfhm7z7yzXj2OFN22luuqbyVhuL7LRdB0M
-pxgmjXb4tTvfgKd26x34S+QqUJ7W6uprY4sAEQEAAYifBBgBCgAJBQJV/GgVAhsM
-AAoJEHl50JoXRlvT7y8D/02ckx4OMkKBZo7viyrBw0MLG92i+DC2bs35PooHR6zz
-786mitjOp5z2QWNLBvxC70S0qVfCIz8jKupO1J6rq6Z8CcbLF3qjm6h1omUBf8Nd
-EfXKD2/2HV6zMKVknnKzIEzauh+eCKS2CeJUSSSryap/QLVAjRnckaES/OsEWhNB
-=RZia
------END PGP PUBLIC KEY BLOCK-----
-`
-
-const signedMessageV3 = `-----BEGIN PGP MESSAGE-----
-Comment: GPGTools - https://gpgtools.org
-
-owGbwMvMwMVYWXlhlrhb9GXG03JJDKF/MtxDMjKLFYAoUaEktbhEITe1uDgxPVWP
-q5NhKjMrWAVcC9evD8z/bF/uWNjqtk/X3y5/38XGRQHm/57rrDRYuGnTw597Xqka
-uM3137/hH3Os+Jf2dc0fXOITKwJvXJvecPVs0ta+Vg7ZO1MLn8w58Xx+6L58mbka
-DGHyU9yTueZE8D+QF/Tz28Y78dqtF56R1VPn9Xw4uJqrWYdd7b3vIZ1V6R4Nh05d
-iT57d/OhWwA=
-=hG7R
------END PGP MESSAGE-----
-`
diff --git a/vendor/golang.org/x/crypto/openpgp/s2k/s2k.go b/vendor/golang.org/x/crypto/openpgp/s2k/s2k.go
deleted file mode 100644
index 4b9a44c..0000000
--- a/vendor/golang.org/x/crypto/openpgp/s2k/s2k.go
+++ /dev/null
@@ -1,273 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package s2k implements the various OpenPGP string-to-key transforms as
-// specified in RFC 4800 section 3.7.1.
-package s2k // import "golang.org/x/crypto/openpgp/s2k"
-
-import (
-	"crypto"
-	"hash"
-	"io"
-	"strconv"
-
-	"golang.org/x/crypto/openpgp/errors"
-)
-
-// Config collects configuration parameters for s2k key-stretching
-// transformatioms. A nil *Config is valid and results in all default
-// values. Currently, Config is used only by the Serialize function in
-// this package.
-type Config struct {
-	// Hash is the default hash function to be used. If
-	// nil, SHA1 is used.
-	Hash crypto.Hash
-	// S2KCount is only used for symmetric encryption. It
-	// determines the strength of the passphrase stretching when
-	// the said passphrase is hashed to produce a key. S2KCount
-	// should be between 1024 and 65011712, inclusive. If Config
-	// is nil or S2KCount is 0, the value 65536 used. Not all
-	// values in the above range can be represented. S2KCount will
-	// be rounded up to the next representable value if it cannot
-	// be encoded exactly. When set, it is strongly encrouraged to
-	// use a value that is at least 65536. See RFC 4880 Section
-	// 3.7.1.3.
-	S2KCount int
-}
-
-func (c *Config) hash() crypto.Hash {
-	if c == nil || uint(c.Hash) == 0 {
-		// SHA1 is the historical default in this package.
-		return crypto.SHA1
-	}
-
-	return c.Hash
-}
-
-func (c *Config) encodedCount() uint8 {
-	if c == nil || c.S2KCount == 0 {
-		return 96 // The common case. Correspoding to 65536
-	}
-
-	i := c.S2KCount
-	switch {
-	// Behave like GPG. Should we make 65536 the lowest value used?
-	case i < 1024:
-		i = 1024
-	case i > 65011712:
-		i = 65011712
-	}
-
-	return encodeCount(i)
-}
-
-// encodeCount converts an iterative "count" in the range 1024 to
-// 65011712, inclusive, to an encoded count. The return value is the
-// octet that is actually stored in the GPG file. encodeCount panics
-// if i is not in the above range (encodedCount above takes care to
-// pass i in the correct range). See RFC 4880 Section 3.7.7.1.
-func encodeCount(i int) uint8 {
-	if i < 1024 || i > 65011712 {
-		panic("count arg i outside the required range")
-	}
-
-	for encoded := 0; encoded < 256; encoded++ {
-		count := decodeCount(uint8(encoded))
-		if count >= i {
-			return uint8(encoded)
-		}
-	}
-
-	return 255
-}
-
-// decodeCount returns the s2k mode 3 iterative "count" corresponding to
-// the encoded octet c.
-func decodeCount(c uint8) int {
-	return (16 + int(c&15)) << (uint32(c>>4) + 6)
-}
-
-// Simple writes to out the result of computing the Simple S2K function (RFC
-// 4880, section 3.7.1.1) using the given hash and input passphrase.
-func Simple(out []byte, h hash.Hash, in []byte) {
-	Salted(out, h, in, nil)
-}
-
-var zero [1]byte
-
-// Salted writes to out the result of computing the Salted S2K function (RFC
-// 4880, section 3.7.1.2) using the given hash, input passphrase and salt.
-func Salted(out []byte, h hash.Hash, in []byte, salt []byte) {
-	done := 0
-	var digest []byte
-
-	for i := 0; done < len(out); i++ {
-		h.Reset()
-		for j := 0; j < i; j++ {
-			h.Write(zero[:])
-		}
-		h.Write(salt)
-		h.Write(in)
-		digest = h.Sum(digest[:0])
-		n := copy(out[done:], digest)
-		done += n
-	}
-}
-
-// Iterated writes to out the result of computing the Iterated and Salted S2K
-// function (RFC 4880, section 3.7.1.3) using the given hash, input passphrase,
-// salt and iteration count.
-func Iterated(out []byte, h hash.Hash, in []byte, salt []byte, count int) {
-	combined := make([]byte, len(in)+len(salt))
-	copy(combined, salt)
-	copy(combined[len(salt):], in)
-
-	if count < len(combined) {
-		count = len(combined)
-	}
-
-	done := 0
-	var digest []byte
-	for i := 0; done < len(out); i++ {
-		h.Reset()
-		for j := 0; j < i; j++ {
-			h.Write(zero[:])
-		}
-		written := 0
-		for written < count {
-			if written+len(combined) > count {
-				todo := count - written
-				h.Write(combined[:todo])
-				written = count
-			} else {
-				h.Write(combined)
-				written += len(combined)
-			}
-		}
-		digest = h.Sum(digest[:0])
-		n := copy(out[done:], digest)
-		done += n
-	}
-}
-
-// Parse reads a binary specification for a string-to-key transformation from r
-// and returns a function which performs that transform.
-func Parse(r io.Reader) (f func(out, in []byte), err error) {
-	var buf [9]byte
-
-	_, err = io.ReadFull(r, buf[:2])
-	if err != nil {
-		return
-	}
-
-	hash, ok := HashIdToHash(buf[1])
-	if !ok {
-		return nil, errors.UnsupportedError("hash for S2K function: " + strconv.Itoa(int(buf[1])))
-	}
-	if !hash.Available() {
-		return nil, errors.UnsupportedError("hash not available: " + strconv.Itoa(int(hash)))
-	}
-	h := hash.New()
-
-	switch buf[0] {
-	case 0:
-		f := func(out, in []byte) {
-			Simple(out, h, in)
-		}
-		return f, nil
-	case 1:
-		_, err = io.ReadFull(r, buf[:8])
-		if err != nil {
-			return
-		}
-		f := func(out, in []byte) {
-			Salted(out, h, in, buf[:8])
-		}
-		return f, nil
-	case 3:
-		_, err = io.ReadFull(r, buf[:9])
-		if err != nil {
-			return
-		}
-		count := decodeCount(buf[8])
-		f := func(out, in []byte) {
-			Iterated(out, h, in, buf[:8], count)
-		}
-		return f, nil
-	}
-
-	return nil, errors.UnsupportedError("S2K function")
-}
-
-// Serialize salts and stretches the given passphrase and writes the
-// resulting key into key. It also serializes an S2K descriptor to
-// w. The key stretching can be configured with c, which may be
-// nil. In that case, sensible defaults will be used.
-func Serialize(w io.Writer, key []byte, rand io.Reader, passphrase []byte, c *Config) error {
-	var buf [11]byte
-	buf[0] = 3 /* iterated and salted */
-	buf[1], _ = HashToHashId(c.hash())
-	salt := buf[2:10]
-	if _, err := io.ReadFull(rand, salt); err != nil {
-		return err
-	}
-	encodedCount := c.encodedCount()
-	count := decodeCount(encodedCount)
-	buf[10] = encodedCount
-	if _, err := w.Write(buf[:]); err != nil {
-		return err
-	}
-
-	Iterated(key, c.hash().New(), passphrase, salt, count)
-	return nil
-}
-
-// hashToHashIdMapping contains pairs relating OpenPGP's hash identifier with
-// Go's crypto.Hash type. See RFC 4880, section 9.4.
-var hashToHashIdMapping = []struct {
-	id   byte
-	hash crypto.Hash
-	name string
-}{
-	{1, crypto.MD5, "MD5"},
-	{2, crypto.SHA1, "SHA1"},
-	{3, crypto.RIPEMD160, "RIPEMD160"},
-	{8, crypto.SHA256, "SHA256"},
-	{9, crypto.SHA384, "SHA384"},
-	{10, crypto.SHA512, "SHA512"},
-	{11, crypto.SHA224, "SHA224"},
-}
-
-// HashIdToHash returns a crypto.Hash which corresponds to the given OpenPGP
-// hash id.
-func HashIdToHash(id byte) (h crypto.Hash, ok bool) {
-	for _, m := range hashToHashIdMapping {
-		if m.id == id {
-			return m.hash, true
-		}
-	}
-	return 0, false
-}
-
-// HashIdToString returns the name of the hash function corresponding to the
-// given OpenPGP hash id.
-func HashIdToString(id byte) (name string, ok bool) {
-	for _, m := range hashToHashIdMapping {
-		if m.id == id {
-			return m.name, true
-		}
-	}
-
-	return "", false
-}
-
-// HashIdToHash returns an OpenPGP hash id which corresponds the given Hash.
-func HashToHashId(h crypto.Hash) (id byte, ok bool) {
-	for _, m := range hashToHashIdMapping {
-		if m.hash == h {
-			return m.id, true
-		}
-	}
-	return 0, false
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/s2k/s2k_test.go b/vendor/golang.org/x/crypto/openpgp/s2k/s2k_test.go
deleted file mode 100644
index 183d260..0000000
--- a/vendor/golang.org/x/crypto/openpgp/s2k/s2k_test.go
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package s2k
-
-import (
-	"bytes"
-	"crypto"
-	_ "crypto/md5"
-	"crypto/rand"
-	"crypto/sha1"
-	_ "crypto/sha256"
-	_ "crypto/sha512"
-	"encoding/hex"
-	"testing"
-
-	_ "golang.org/x/crypto/ripemd160"
-)
-
-var saltedTests = []struct {
-	in, out string
-}{
-	{"hello", "10295ac1"},
-	{"world", "ac587a5e"},
-	{"foo", "4dda8077"},
-	{"bar", "bd8aac6b9ea9cae04eae6a91c6133b58b5d9a61c14f355516ed9370456"},
-	{"x", "f1d3f289"},
-	{"xxxxxxxxxxxxxxxxxxxxxxx", "e00d7b45"},
-}
-
-func TestSalted(t *testing.T) {
-	h := sha1.New()
-	salt := [4]byte{1, 2, 3, 4}
-
-	for i, test := range saltedTests {
-		expected, _ := hex.DecodeString(test.out)
-		out := make([]byte, len(expected))
-		Salted(out, h, []byte(test.in), salt[:])
-		if !bytes.Equal(expected, out) {
-			t.Errorf("#%d, got: %x want: %x", i, out, expected)
-		}
-	}
-}
-
-var iteratedTests = []struct {
-	in, out string
-}{
-	{"hello", "83126105"},
-	{"world", "6fa317f9"},
-	{"foo", "8fbc35b9"},
-	{"bar", "2af5a99b54f093789fd657f19bd245af7604d0f6ae06f66602a46a08ae"},
-	{"x", "5a684dfe"},
-	{"xxxxxxxxxxxxxxxxxxxxxxx", "18955174"},
-}
-
-func TestIterated(t *testing.T) {
-	h := sha1.New()
-	salt := [4]byte{4, 3, 2, 1}
-
-	for i, test := range iteratedTests {
-		expected, _ := hex.DecodeString(test.out)
-		out := make([]byte, len(expected))
-		Iterated(out, h, []byte(test.in), salt[:], 31)
-		if !bytes.Equal(expected, out) {
-			t.Errorf("#%d, got: %x want: %x", i, out, expected)
-		}
-	}
-}
-
-var parseTests = []struct {
-	spec, in, out string
-}{
-	/* Simple with SHA1 */
-	{"0002", "hello", "aaf4c61d"},
-	/* Salted with SHA1 */
-	{"01020102030405060708", "hello", "f4f7d67e"},
-	/* Iterated with SHA1 */
-	{"03020102030405060708f1", "hello", "f2a57b7c"},
-}
-
-func TestParse(t *testing.T) {
-	for i, test := range parseTests {
-		spec, _ := hex.DecodeString(test.spec)
-		buf := bytes.NewBuffer(spec)
-		f, err := Parse(buf)
-		if err != nil {
-			t.Errorf("%d: Parse returned error: %s", i, err)
-			continue
-		}
-
-		expected, _ := hex.DecodeString(test.out)
-		out := make([]byte, len(expected))
-		f(out, []byte(test.in))
-		if !bytes.Equal(out, expected) {
-			t.Errorf("%d: output got: %x want: %x", i, out, expected)
-		}
-		if testing.Short() {
-			break
-		}
-	}
-}
-
-func TestSerialize(t *testing.T) {
-	hashes := []crypto.Hash{crypto.MD5, crypto.SHA1, crypto.RIPEMD160,
-		crypto.SHA256, crypto.SHA384, crypto.SHA512, crypto.SHA224}
-	testCounts := []int{-1, 0, 1024, 65536, 4063232, 65011712}
-	for _, h := range hashes {
-		for _, c := range testCounts {
-			testSerializeConfig(t, &Config{Hash: h, S2KCount: c})
-		}
-	}
-}
-
-func testSerializeConfig(t *testing.T, c *Config) {
-	t.Logf("Running testSerializeConfig() with config: %+v", c)
-
-	buf := bytes.NewBuffer(nil)
-	key := make([]byte, 16)
-	passphrase := []byte("testing")
-	err := Serialize(buf, key, rand.Reader, passphrase, c)
-	if err != nil {
-		t.Errorf("failed to serialize: %s", err)
-		return
-	}
-
-	f, err := Parse(buf)
-	if err != nil {
-		t.Errorf("failed to reparse: %s", err)
-		return
-	}
-	key2 := make([]byte, len(key))
-	f(key2, passphrase)
-	if !bytes.Equal(key2, key) {
-		t.Errorf("keys don't match: %x (serialied) vs %x (parsed)", key, key2)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/write.go b/vendor/golang.org/x/crypto/openpgp/write.go
deleted file mode 100644
index 65a304c..0000000
--- a/vendor/golang.org/x/crypto/openpgp/write.go
+++ /dev/null
@@ -1,378 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import (
-	"crypto"
-	"hash"
-	"io"
-	"strconv"
-	"time"
-
-	"golang.org/x/crypto/openpgp/armor"
-	"golang.org/x/crypto/openpgp/errors"
-	"golang.org/x/crypto/openpgp/packet"
-	"golang.org/x/crypto/openpgp/s2k"
-)
-
-// DetachSign signs message with the private key from signer (which must
-// already have been decrypted) and writes the signature to w.
-// If config is nil, sensible defaults will be used.
-func DetachSign(w io.Writer, signer *Entity, message io.Reader, config *packet.Config) error {
-	return detachSign(w, signer, message, packet.SigTypeBinary, config)
-}
-
-// ArmoredDetachSign signs message with the private key from signer (which
-// must already have been decrypted) and writes an armored signature to w.
-// If config is nil, sensible defaults will be used.
-func ArmoredDetachSign(w io.Writer, signer *Entity, message io.Reader, config *packet.Config) (err error) {
-	return armoredDetachSign(w, signer, message, packet.SigTypeBinary, config)
-}
-
-// DetachSignText signs message (after canonicalising the line endings) with
-// the private key from signer (which must already have been decrypted) and
-// writes the signature to w.
-// If config is nil, sensible defaults will be used.
-func DetachSignText(w io.Writer, signer *Entity, message io.Reader, config *packet.Config) error {
-	return detachSign(w, signer, message, packet.SigTypeText, config)
-}
-
-// ArmoredDetachSignText signs message (after canonicalising the line endings)
-// with the private key from signer (which must already have been decrypted)
-// and writes an armored signature to w.
-// If config is nil, sensible defaults will be used.
-func ArmoredDetachSignText(w io.Writer, signer *Entity, message io.Reader, config *packet.Config) error {
-	return armoredDetachSign(w, signer, message, packet.SigTypeText, config)
-}
-
-func armoredDetachSign(w io.Writer, signer *Entity, message io.Reader, sigType packet.SignatureType, config *packet.Config) (err error) {
-	out, err := armor.Encode(w, SignatureType, nil)
-	if err != nil {
-		return
-	}
-	err = detachSign(out, signer, message, sigType, config)
-	if err != nil {
-		return
-	}
-	return out.Close()
-}
-
-func detachSign(w io.Writer, signer *Entity, message io.Reader, sigType packet.SignatureType, config *packet.Config) (err error) {
-	if signer.PrivateKey == nil {
-		return errors.InvalidArgumentError("signing key doesn't have a private key")
-	}
-	if signer.PrivateKey.Encrypted {
-		return errors.InvalidArgumentError("signing key is encrypted")
-	}
-
-	sig := new(packet.Signature)
-	sig.SigType = sigType
-	sig.PubKeyAlgo = signer.PrivateKey.PubKeyAlgo
-	sig.Hash = config.Hash()
-	sig.CreationTime = config.Now()
-	sig.IssuerKeyId = &signer.PrivateKey.KeyId
-
-	h, wrappedHash, err := hashForSignature(sig.Hash, sig.SigType)
-	if err != nil {
-		return
-	}
-	io.Copy(wrappedHash, message)
-
-	err = sig.Sign(h, signer.PrivateKey, config)
-	if err != nil {
-		return
-	}
-
-	return sig.Serialize(w)
-}
-
-// FileHints contains metadata about encrypted files. This metadata is, itself,
-// encrypted.
-type FileHints struct {
-	// IsBinary can be set to hint that the contents are binary data.
-	IsBinary bool
-	// FileName hints at the name of the file that should be written. It's
-	// truncated to 255 bytes if longer. It may be empty to suggest that the
-	// file should not be written to disk. It may be equal to "_CONSOLE" to
-	// suggest the data should not be written to disk.
-	FileName string
-	// ModTime contains the modification time of the file, or the zero time if not applicable.
-	ModTime time.Time
-}
-
-// SymmetricallyEncrypt acts like gpg -c: it encrypts a file with a passphrase.
-// The resulting WriteCloser must be closed after the contents of the file have
-// been written.
-// If config is nil, sensible defaults will be used.
-func SymmetricallyEncrypt(ciphertext io.Writer, passphrase []byte, hints *FileHints, config *packet.Config) (plaintext io.WriteCloser, err error) {
-	if hints == nil {
-		hints = &FileHints{}
-	}
-
-	key, err := packet.SerializeSymmetricKeyEncrypted(ciphertext, passphrase, config)
-	if err != nil {
-		return
-	}
-	w, err := packet.SerializeSymmetricallyEncrypted(ciphertext, config.Cipher(), key, config)
-	if err != nil {
-		return
-	}
-
-	literaldata := w
-	if algo := config.Compression(); algo != packet.CompressionNone {
-		var compConfig *packet.CompressionConfig
-		if config != nil {
-			compConfig = config.CompressionConfig
-		}
-		literaldata, err = packet.SerializeCompressed(w, algo, compConfig)
-		if err != nil {
-			return
-		}
-	}
-
-	var epochSeconds uint32
-	if !hints.ModTime.IsZero() {
-		epochSeconds = uint32(hints.ModTime.Unix())
-	}
-	return packet.SerializeLiteral(literaldata, hints.IsBinary, hints.FileName, epochSeconds)
-}
-
-// intersectPreferences mutates and returns a prefix of a that contains only
-// the values in the intersection of a and b. The order of a is preserved.
-func intersectPreferences(a []uint8, b []uint8) (intersection []uint8) {
-	var j int
-	for _, v := range a {
-		for _, v2 := range b {
-			if v == v2 {
-				a[j] = v
-				j++
-				break
-			}
-		}
-	}
-
-	return a[:j]
-}
-
-func hashToHashId(h crypto.Hash) uint8 {
-	v, ok := s2k.HashToHashId(h)
-	if !ok {
-		panic("tried to convert unknown hash")
-	}
-	return v
-}
-
-// Encrypt encrypts a message to a number of recipients and, optionally, signs
-// it. hints contains optional information, that is also encrypted, that aids
-// the recipients in processing the message. The resulting WriteCloser must
-// be closed after the contents of the file have been written.
-// If config is nil, sensible defaults will be used.
-func Encrypt(ciphertext io.Writer, to []*Entity, signed *Entity, hints *FileHints, config *packet.Config) (plaintext io.WriteCloser, err error) {
-	var signer *packet.PrivateKey
-	if signed != nil {
-		signKey, ok := signed.signingKey(config.Now())
-		if !ok {
-			return nil, errors.InvalidArgumentError("no valid signing keys")
-		}
-		signer = signKey.PrivateKey
-		if signer == nil {
-			return nil, errors.InvalidArgumentError("no private key in signing key")
-		}
-		if signer.Encrypted {
-			return nil, errors.InvalidArgumentError("signing key must be decrypted")
-		}
-	}
-
-	// These are the possible ciphers that we'll use for the message.
-	candidateCiphers := []uint8{
-		uint8(packet.CipherAES128),
-		uint8(packet.CipherAES256),
-		uint8(packet.CipherCAST5),
-	}
-	// These are the possible hash functions that we'll use for the signature.
-	candidateHashes := []uint8{
-		hashToHashId(crypto.SHA256),
-		hashToHashId(crypto.SHA512),
-		hashToHashId(crypto.SHA1),
-		hashToHashId(crypto.RIPEMD160),
-	}
-	// In the event that a recipient doesn't specify any supported ciphers
-	// or hash functions, these are the ones that we assume that every
-	// implementation supports.
-	defaultCiphers := candidateCiphers[len(candidateCiphers)-1:]
-	defaultHashes := candidateHashes[len(candidateHashes)-1:]
-
-	encryptKeys := make([]Key, len(to))
-	for i := range to {
-		var ok bool
-		encryptKeys[i], ok = to[i].encryptionKey(config.Now())
-		if !ok {
-			return nil, errors.InvalidArgumentError("cannot encrypt a message to key id " + strconv.FormatUint(to[i].PrimaryKey.KeyId, 16) + " because it has no encryption keys")
-		}
-
-		sig := to[i].primaryIdentity().SelfSignature
-
-		preferredSymmetric := sig.PreferredSymmetric
-		if len(preferredSymmetric) == 0 {
-			preferredSymmetric = defaultCiphers
-		}
-		preferredHashes := sig.PreferredHash
-		if len(preferredHashes) == 0 {
-			preferredHashes = defaultHashes
-		}
-		candidateCiphers = intersectPreferences(candidateCiphers, preferredSymmetric)
-		candidateHashes = intersectPreferences(candidateHashes, preferredHashes)
-	}
-
-	if len(candidateCiphers) == 0 || len(candidateHashes) == 0 {
-		return nil, errors.InvalidArgumentError("cannot encrypt because recipient set shares no common algorithms")
-	}
-
-	cipher := packet.CipherFunction(candidateCiphers[0])
-	// If the cipher specified by config is a candidate, we'll use that.
-	configuredCipher := config.Cipher()
-	for _, c := range candidateCiphers {
-		cipherFunc := packet.CipherFunction(c)
-		if cipherFunc == configuredCipher {
-			cipher = cipherFunc
-			break
-		}
-	}
-
-	var hash crypto.Hash
-	for _, hashId := range candidateHashes {
-		if h, ok := s2k.HashIdToHash(hashId); ok && h.Available() {
-			hash = h
-			break
-		}
-	}
-
-	// If the hash specified by config is a candidate, we'll use that.
-	if configuredHash := config.Hash(); configuredHash.Available() {
-		for _, hashId := range candidateHashes {
-			if h, ok := s2k.HashIdToHash(hashId); ok && h == configuredHash {
-				hash = h
-				break
-			}
-		}
-	}
-
-	if hash == 0 {
-		hashId := candidateHashes[0]
-		name, ok := s2k.HashIdToString(hashId)
-		if !ok {
-			name = "#" + strconv.Itoa(int(hashId))
-		}
-		return nil, errors.InvalidArgumentError("cannot encrypt because no candidate hash functions are compiled in. (Wanted " + name + " in this case.)")
-	}
-
-	symKey := make([]byte, cipher.KeySize())
-	if _, err := io.ReadFull(config.Random(), symKey); err != nil {
-		return nil, err
-	}
-
-	for _, key := range encryptKeys {
-		if err := packet.SerializeEncryptedKey(ciphertext, key.PublicKey, cipher, symKey, config); err != nil {
-			return nil, err
-		}
-	}
-
-	encryptedData, err := packet.SerializeSymmetricallyEncrypted(ciphertext, cipher, symKey, config)
-	if err != nil {
-		return
-	}
-
-	if signer != nil {
-		ops := &packet.OnePassSignature{
-			SigType:    packet.SigTypeBinary,
-			Hash:       hash,
-			PubKeyAlgo: signer.PubKeyAlgo,
-			KeyId:      signer.KeyId,
-			IsLast:     true,
-		}
-		if err := ops.Serialize(encryptedData); err != nil {
-			return nil, err
-		}
-	}
-
-	if hints == nil {
-		hints = &FileHints{}
-	}
-
-	w := encryptedData
-	if signer != nil {
-		// If we need to write a signature packet after the literal
-		// data then we need to stop literalData from closing
-		// encryptedData.
-		w = noOpCloser{encryptedData}
-
-	}
-	var epochSeconds uint32
-	if !hints.ModTime.IsZero() {
-		epochSeconds = uint32(hints.ModTime.Unix())
-	}
-	literalData, err := packet.SerializeLiteral(w, hints.IsBinary, hints.FileName, epochSeconds)
-	if err != nil {
-		return nil, err
-	}
-
-	if signer != nil {
-		return signatureWriter{encryptedData, literalData, hash, hash.New(), signer, config}, nil
-	}
-	return literalData, nil
-}
-
-// signatureWriter hashes the contents of a message while passing it along to
-// literalData. When closed, it closes literalData, writes a signature packet
-// to encryptedData and then also closes encryptedData.
-type signatureWriter struct {
-	encryptedData io.WriteCloser
-	literalData   io.WriteCloser
-	hashType      crypto.Hash
-	h             hash.Hash
-	signer        *packet.PrivateKey
-	config        *packet.Config
-}
-
-func (s signatureWriter) Write(data []byte) (int, error) {
-	s.h.Write(data)
-	return s.literalData.Write(data)
-}
-
-func (s signatureWriter) Close() error {
-	sig := &packet.Signature{
-		SigType:      packet.SigTypeBinary,
-		PubKeyAlgo:   s.signer.PubKeyAlgo,
-		Hash:         s.hashType,
-		CreationTime: s.config.Now(),
-		IssuerKeyId:  &s.signer.KeyId,
-	}
-
-	if err := sig.Sign(s.h, s.signer, s.config); err != nil {
-		return err
-	}
-	if err := s.literalData.Close(); err != nil {
-		return err
-	}
-	if err := sig.Serialize(s.encryptedData); err != nil {
-		return err
-	}
-	return s.encryptedData.Close()
-}
-
-// noOpCloser is like an ioutil.NopCloser, but for an io.Writer.
-// TODO: we have two of these in OpenPGP packages alone. This probably needs
-// to be promoted somewhere more common.
-type noOpCloser struct {
-	w io.Writer
-}
-
-func (c noOpCloser) Write(data []byte) (n int, err error) {
-	return c.w.Write(data)
-}
-
-func (c noOpCloser) Close() error {
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/openpgp/write_test.go b/vendor/golang.org/x/crypto/openpgp/write_test.go
deleted file mode 100644
index f2d50a0..0000000
--- a/vendor/golang.org/x/crypto/openpgp/write_test.go
+++ /dev/null
@@ -1,273 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package openpgp
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/openpgp/packet"
-)
-
-func TestSignDetached(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2PrivateHex))
-	out := bytes.NewBuffer(nil)
-	message := bytes.NewBufferString(signedInput)
-	err := DetachSign(out, kring[0], message, nil)
-	if err != nil {
-		t.Error(err)
-	}
-
-	testDetachedSignature(t, kring, out, signedInput, "check", testKey1KeyId)
-}
-
-func TestSignTextDetached(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(testKeys1And2PrivateHex))
-	out := bytes.NewBuffer(nil)
-	message := bytes.NewBufferString(signedInput)
-	err := DetachSignText(out, kring[0], message, nil)
-	if err != nil {
-		t.Error(err)
-	}
-
-	testDetachedSignature(t, kring, out, signedInput, "check", testKey1KeyId)
-}
-
-func TestSignDetachedDSA(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(dsaTestKeyPrivateHex))
-	out := bytes.NewBuffer(nil)
-	message := bytes.NewBufferString(signedInput)
-	err := DetachSign(out, kring[0], message, nil)
-	if err != nil {
-		t.Error(err)
-	}
-
-	testDetachedSignature(t, kring, out, signedInput, "check", testKey3KeyId)
-}
-
-func TestSignDetachedP256(t *testing.T) {
-	kring, _ := ReadKeyRing(readerFromHex(p256TestKeyPrivateHex))
-	kring[0].PrivateKey.Decrypt([]byte("passphrase"))
-
-	out := bytes.NewBuffer(nil)
-	message := bytes.NewBufferString(signedInput)
-	err := DetachSign(out, kring[0], message, nil)
-	if err != nil {
-		t.Error(err)
-	}
-
-	testDetachedSignature(t, kring, out, signedInput, "check", testKeyP256KeyId)
-}
-
-func TestNewEntity(t *testing.T) {
-	if testing.Short() {
-		return
-	}
-
-	// Check bit-length with no config.
-	e, err := NewEntity("Test User", "test", "test@example.com", nil)
-	if err != nil {
-		t.Errorf("failed to create entity: %s", err)
-		return
-	}
-	bl, err := e.PrimaryKey.BitLength()
-	if err != nil {
-		t.Errorf("failed to find bit length: %s", err)
-	}
-	if int(bl) != defaultRSAKeyBits {
-		t.Errorf("BitLength %v, expected %v", int(bl), defaultRSAKeyBits)
-	}
-
-	// Check bit-length with a config.
-	cfg := &packet.Config{RSABits: 1024}
-	e, err = NewEntity("Test User", "test", "test@example.com", cfg)
-	if err != nil {
-		t.Errorf("failed to create entity: %s", err)
-		return
-	}
-	bl, err = e.PrimaryKey.BitLength()
-	if err != nil {
-		t.Errorf("failed to find bit length: %s", err)
-	}
-	if int(bl) != cfg.RSABits {
-		t.Errorf("BitLength %v, expected %v", bl, cfg.RSABits)
-	}
-
-	w := bytes.NewBuffer(nil)
-	if err := e.SerializePrivate(w, nil); err != nil {
-		t.Errorf("failed to serialize entity: %s", err)
-		return
-	}
-	serialized := w.Bytes()
-
-	el, err := ReadKeyRing(w)
-	if err != nil {
-		t.Errorf("failed to reparse entity: %s", err)
-		return
-	}
-
-	if len(el) != 1 {
-		t.Errorf("wrong number of entities found, got %d, want 1", len(el))
-	}
-
-	w = bytes.NewBuffer(nil)
-	if err := e.SerializePrivate(w, nil); err != nil {
-		t.Errorf("failed to serialize entity second time: %s", err)
-		return
-	}
-
-	if !bytes.Equal(w.Bytes(), serialized) {
-		t.Errorf("results differed")
-	}
-}
-
-func TestSymmetricEncryption(t *testing.T) {
-	buf := new(bytes.Buffer)
-	plaintext, err := SymmetricallyEncrypt(buf, []byte("testing"), nil, nil)
-	if err != nil {
-		t.Errorf("error writing headers: %s", err)
-		return
-	}
-	message := []byte("hello world\n")
-	_, err = plaintext.Write(message)
-	if err != nil {
-		t.Errorf("error writing to plaintext writer: %s", err)
-	}
-	err = plaintext.Close()
-	if err != nil {
-		t.Errorf("error closing plaintext writer: %s", err)
-	}
-
-	md, err := ReadMessage(buf, nil, func(keys []Key, symmetric bool) ([]byte, error) {
-		return []byte("testing"), nil
-	}, nil)
-	if err != nil {
-		t.Errorf("error rereading message: %s", err)
-	}
-	messageBuf := bytes.NewBuffer(nil)
-	_, err = io.Copy(messageBuf, md.UnverifiedBody)
-	if err != nil {
-		t.Errorf("error rereading message: %s", err)
-	}
-	if !bytes.Equal(message, messageBuf.Bytes()) {
-		t.Errorf("recovered message incorrect got '%s', want '%s'", messageBuf.Bytes(), message)
-	}
-}
-
-var testEncryptionTests = []struct {
-	keyRingHex string
-	isSigned   bool
-}{
-	{
-		testKeys1And2PrivateHex,
-		false,
-	},
-	{
-		testKeys1And2PrivateHex,
-		true,
-	},
-	{
-		dsaElGamalTestKeysHex,
-		false,
-	},
-	{
-		dsaElGamalTestKeysHex,
-		true,
-	},
-}
-
-func TestEncryption(t *testing.T) {
-	for i, test := range testEncryptionTests {
-		kring, _ := ReadKeyRing(readerFromHex(test.keyRingHex))
-
-		passphrase := []byte("passphrase")
-		for _, entity := range kring {
-			if entity.PrivateKey != nil && entity.PrivateKey.Encrypted {
-				err := entity.PrivateKey.Decrypt(passphrase)
-				if err != nil {
-					t.Errorf("#%d: failed to decrypt key", i)
-				}
-			}
-			for _, subkey := range entity.Subkeys {
-				if subkey.PrivateKey != nil && subkey.PrivateKey.Encrypted {
-					err := subkey.PrivateKey.Decrypt(passphrase)
-					if err != nil {
-						t.Errorf("#%d: failed to decrypt subkey", i)
-					}
-				}
-			}
-		}
-
-		var signed *Entity
-		if test.isSigned {
-			signed = kring[0]
-		}
-
-		buf := new(bytes.Buffer)
-		w, err := Encrypt(buf, kring[:1], signed, nil /* no hints */, nil)
-		if err != nil {
-			t.Errorf("#%d: error in Encrypt: %s", i, err)
-			continue
-		}
-
-		const message = "testing"
-		_, err = w.Write([]byte(message))
-		if err != nil {
-			t.Errorf("#%d: error writing plaintext: %s", i, err)
-			continue
-		}
-		err = w.Close()
-		if err != nil {
-			t.Errorf("#%d: error closing WriteCloser: %s", i, err)
-			continue
-		}
-
-		md, err := ReadMessage(buf, kring, nil /* no prompt */, nil)
-		if err != nil {
-			t.Errorf("#%d: error reading message: %s", i, err)
-			continue
-		}
-
-		testTime, _ := time.Parse("2006-01-02", "2013-07-01")
-		if test.isSigned {
-			signKey, _ := kring[0].signingKey(testTime)
-			expectedKeyId := signKey.PublicKey.KeyId
-			if md.SignedByKeyId != expectedKeyId {
-				t.Errorf("#%d: message signed by wrong key id, got: %v, want: %v", i, *md.SignedBy, expectedKeyId)
-			}
-			if md.SignedBy == nil {
-				t.Errorf("#%d: failed to find the signing Entity", i)
-			}
-		}
-
-		plaintext, err := ioutil.ReadAll(md.UnverifiedBody)
-		if err != nil {
-			t.Errorf("#%d: error reading encrypted contents: %s", i, err)
-			continue
-		}
-
-		encryptKey, _ := kring[0].encryptionKey(testTime)
-		expectedKeyId := encryptKey.PublicKey.KeyId
-		if len(md.EncryptedToKeyIds) != 1 || md.EncryptedToKeyIds[0] != expectedKeyId {
-			t.Errorf("#%d: expected message to be encrypted to %v, but got %#v", i, expectedKeyId, md.EncryptedToKeyIds)
-		}
-
-		if string(plaintext) != message {
-			t.Errorf("#%d: got: %s, want: %s", i, string(plaintext), message)
-		}
-
-		if test.isSigned {
-			if md.SignatureError != nil {
-				t.Errorf("#%d: signature error: %s", i, md.SignatureError)
-			}
-			if md.Signature == nil {
-				t.Error("signature missing")
-			}
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/otr/libotr_test_helper.c b/vendor/golang.org/x/crypto/otr/libotr_test_helper.c
deleted file mode 100644
index b3ca072..0000000
--- a/vendor/golang.org/x/crypto/otr/libotr_test_helper.c
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This code can be compiled and used to test the otr package against libotr.
-// See otr_test.go.
-
-// +build ignore
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <proto.h>
-#include <message.h>
-#include <privkey.h>
-
-static int g_session_established = 0;
-
-OtrlPolicy policy(void *opdata, ConnContext *context) {
-  return OTRL_POLICY_ALWAYS;
-}
-
-int is_logged_in(void *opdata, const char *accountname, const char *protocol,
-                 const char *recipient) {
-  return 1;
-}
-
-void inject_message(void *opdata, const char *accountname, const char *protocol,
-                    const char *recipient, const char *message) {
-  printf("%s\n", message);
-  fflush(stdout);
-  fprintf(stderr, "libotr helper sent: %s\n", message);
-}
-
-void update_context_list(void *opdata) {}
-
-void new_fingerprint(void *opdata, OtrlUserState us, const char *accountname,
-                     const char *protocol, const char *username,
-                     unsigned char fingerprint[20]) {
-  fprintf(stderr, "NEW FINGERPRINT\n");
-  g_session_established = 1;
-}
-
-void write_fingerprints(void *opdata) {}
-
-void gone_secure(void *opdata, ConnContext *context) {}
-
-void gone_insecure(void *opdata, ConnContext *context) {}
-
-void still_secure(void *opdata, ConnContext *context, int is_reply) {}
-
-int max_message_size(void *opdata, ConnContext *context) { return 99999; }
-
-const char *account_name(void *opdata, const char *account,
-                         const char *protocol) {
-  return "ACCOUNT";
-}
-
-void account_name_free(void *opdata, const char *account_name) {}
-
-const char *error_message(void *opdata, ConnContext *context,
-                          OtrlErrorCode err_code) {
-  return "ERR";
-}
-
-void error_message_free(void *opdata, const char *msg) {}
-
-void resent_msg_prefix_free(void *opdata, const char *prefix) {}
-
-void handle_smp_event(void *opdata, OtrlSMPEvent smp_event,
-                      ConnContext *context, unsigned short progress_event,
-                      char *question) {}
-
-void handle_msg_event(void *opdata, OtrlMessageEvent msg_event,
-                      ConnContext *context, const char *message,
-                      gcry_error_t err) {
-  fprintf(stderr, "msg event: %d %s\n", msg_event, message);
-}
-
-OtrlMessageAppOps uiops = {
-    policy,
-    NULL,
-    is_logged_in,
-    inject_message,
-    update_context_list,
-    new_fingerprint,
-    write_fingerprints,
-    gone_secure,
-    gone_insecure,
-    still_secure,
-    max_message_size,
-    account_name,
-    account_name_free,
-    NULL, /* received_symkey */
-    error_message,
-    error_message_free,
-    NULL, /* resent_msg_prefix */
-    resent_msg_prefix_free,
-    handle_smp_event,
-    handle_msg_event,
-    NULL /* create_instag */,
-    NULL /* convert_msg */,
-    NULL /* convert_free */,
-    NULL /* timer_control */,
-};
-
-static const char kPrivateKeyData[] =
-    "(privkeys (account (name \"account\") (protocol proto) (private-key (dsa "
-    "(p "
-    "#00FC07ABCF0DC916AFF6E9AE47BEF60C7AB9B4D6B2469E436630E36F8A489BE812486A09F"
-    "30B71224508654940A835301ACC525A4FF133FC152CC53DCC59D65C30A54F1993FE13FE63E"
-    "5823D4C746DB21B90F9B9C00B49EC7404AB1D929BA7FBA12F2E45C6E0A651689750E8528AB"
-    "8C031D3561FECEE72EBB4A090D450A9B7A857#) (q "
-    "#00997BD266EF7B1F60A5C23F3A741F2AEFD07A2081#) (g "
-    "#535E360E8A95EBA46A4F7DE50AD6E9B2A6DB785A66B64EB9F20338D2A3E8FB0E94725848F"
-    "1AA6CC567CB83A1CC517EC806F2E92EAE71457E80B2210A189B91250779434B41FC8A8873F"
-    "6DB94BEA7D177F5D59E7E114EE10A49CFD9CEF88AE43387023B672927BA74B04EB6BBB5E57"
-    "597766A2F9CE3857D7ACE3E1E3BC1FC6F26#) (y "
-    "#0AC8670AD767D7A8D9D14CC1AC6744CD7D76F993B77FFD9E39DF01E5A6536EF65E775FCEF"
-    "2A983E2A19BD6415500F6979715D9FD1257E1FE2B6F5E1E74B333079E7C880D39868462A93"
-    "454B41877BE62E5EF0A041C2EE9C9E76BD1E12AE25D9628DECB097025DD625EF49C3258A1A"
-    "3C0FF501E3DC673B76D7BABF349009B6ECF#) (x "
-    "#14D0345A3562C480A039E3C72764F72D79043216#)))))\n";
-
-int main() {
-  OTRL_INIT;
-
-  // We have to write the private key information to a file because the libotr
-  // API demands a filename to read from.
-  const char *tmpdir = "/tmp";
-  if (getenv("TMP")) {
-    tmpdir = getenv("TMP");
-  }
-
-  char private_key_file[256];
-  snprintf(private_key_file, sizeof(private_key_file),
-           "%s/libotr_test_helper_privatekeys-XXXXXX", tmpdir);
-  int fd = mkstemp(private_key_file);
-  if (fd == -1) {
-    perror("creating temp file");
-  }
-  write(fd, kPrivateKeyData, sizeof(kPrivateKeyData) - 1);
-  close(fd);
-
-  OtrlUserState userstate = otrl_userstate_create();
-  otrl_privkey_read(userstate, private_key_file);
-  unlink(private_key_file);
-
-  fprintf(stderr, "libotr helper started\n");
-
-  char buf[4096];
-
-  for (;;) {
-    char *message = fgets(buf, sizeof(buf), stdin);
-    if (strlen(message) == 0) {
-      break;
-    }
-    message[strlen(message) - 1] = 0;
-    fprintf(stderr, "libotr helper got: %s\n", message);
-
-    char *newmessage = NULL;
-    OtrlTLV *tlvs;
-    int ignore_message = otrl_message_receiving(
-        userstate, &uiops, NULL, "account", "proto", "peer", message,
-        &newmessage, &tlvs, NULL, NULL, NULL);
-    if (tlvs) {
-      otrl_tlv_free(tlvs);
-    }
-
-    if (newmessage != NULL) {
-      fprintf(stderr, "libotr got: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      gcry_error_t err;
-      char *newmessage = NULL;
-
-      err = otrl_message_sending(userstate, &uiops, NULL, "account", "proto",
-                                 "peer", 0, "test message", NULL, &newmessage,
-                                 OTRL_FRAGMENT_SEND_SKIP, NULL, NULL, NULL);
-      if (newmessage == NULL) {
-        fprintf(stderr, "libotr didn't encrypt message\n");
-        return 1;
-      }
-      write(1, newmessage, strlen(newmessage));
-      write(1, "\n", 1);
-      fprintf(stderr, "libotr sent: %s\n", newmessage);
-      otrl_message_free(newmessage);
-
-      g_session_established = 0;
-      write(1, "?OTRv2?\n", 8);
-      fprintf(stderr, "libotr sent: ?OTRv2\n");
-    }
-  }
-
-  return 0;
-}
diff --git a/vendor/golang.org/x/crypto/otr/otr.go b/vendor/golang.org/x/crypto/otr/otr.go
deleted file mode 100644
index 173b753..0000000
--- a/vendor/golang.org/x/crypto/otr/otr.go
+++ /dev/null
@@ -1,1415 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package otr implements the Off The Record protocol as specified in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html
-package otr // import "golang.org/x/crypto/otr"
-
-import (
-	"bytes"
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/dsa"
-	"crypto/hmac"
-	"crypto/rand"
-	"crypto/sha1"
-	"crypto/sha256"
-	"crypto/subtle"
-	"encoding/base64"
-	"encoding/hex"
-	"errors"
-	"hash"
-	"io"
-	"math/big"
-	"strconv"
-)
-
-// SecurityChange describes a change in the security state of a Conversation.
-type SecurityChange int
-
-const (
-	NoChange SecurityChange = iota
-	// NewKeys indicates that a key exchange has completed. This occurs
-	// when a conversation first becomes encrypted, and when the keys are
-	// renegotiated within an encrypted conversation.
-	NewKeys
-	// SMPSecretNeeded indicates that the peer has started an
-	// authentication and that we need to supply a secret. Call SMPQuestion
-	// to get the optional, human readable challenge and then Authenticate
-	// to supply the matching secret.
-	SMPSecretNeeded
-	// SMPComplete indicates that an authentication completed. The identity
-	// of the peer has now been confirmed.
-	SMPComplete
-	// SMPFailed indicates that an authentication failed.
-	SMPFailed
-	// ConversationEnded indicates that the peer ended the secure
-	// conversation.
-	ConversationEnded
-)
-
-// QueryMessage can be sent to a peer to start an OTR conversation.
-var QueryMessage = "?OTRv2?"
-
-// ErrorPrefix can be used to make an OTR error by appending an error message
-// to it.
-var ErrorPrefix = "?OTR Error:"
-
-var (
-	fragmentPartSeparator = []byte(",")
-	fragmentPrefix        = []byte("?OTR,")
-	msgPrefix             = []byte("?OTR:")
-	queryMarker           = []byte("?OTR")
-)
-
-// isQuery attempts to parse an OTR query from msg and returns the greatest
-// common version, or 0 if msg is not an OTR query.
-func isQuery(msg []byte) (greatestCommonVersion int) {
-	pos := bytes.Index(msg, queryMarker)
-	if pos == -1 {
-		return 0
-	}
-	for i, c := range msg[pos+len(queryMarker):] {
-		if i == 0 {
-			if c == '?' {
-				// Indicates support for version 1, but we don't
-				// implement that.
-				continue
-			}
-
-			if c != 'v' {
-				// Invalid message
-				return 0
-			}
-
-			continue
-		}
-
-		if c == '?' {
-			// End of message
-			return
-		}
-
-		if c == ' ' || c == '\t' {
-			// Probably an invalid message
-			return 0
-		}
-
-		if c == '2' {
-			greatestCommonVersion = 2
-		}
-	}
-
-	return 0
-}
-
-const (
-	statePlaintext = iota
-	stateEncrypted
-	stateFinished
-)
-
-const (
-	authStateNone = iota
-	authStateAwaitingDHKey
-	authStateAwaitingRevealSig
-	authStateAwaitingSig
-)
-
-const (
-	msgTypeDHCommit  = 2
-	msgTypeData      = 3
-	msgTypeDHKey     = 10
-	msgTypeRevealSig = 17
-	msgTypeSig       = 18
-)
-
-const (
-	// If the requested fragment size is less than this, it will be ignored.
-	minFragmentSize = 18
-	// Messages are padded to a multiple of this number of bytes.
-	paddingGranularity = 256
-	// The number of bytes in a Diffie-Hellman private value (320-bits).
-	dhPrivateBytes = 40
-	// The number of bytes needed to represent an element of the DSA
-	// subgroup (160-bits).
-	dsaSubgroupBytes = 20
-	// The number of bytes of the MAC that are sent on the wire (160-bits).
-	macPrefixBytes = 20
-)
-
-// These are the global, common group parameters for OTR.
-var (
-	p       *big.Int // group prime
-	g       *big.Int // group generator
-	q       *big.Int // group order
-	pMinus2 *big.Int
-)
-
-func init() {
-	p, _ = new(big.Int).SetString("FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3DC2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F83655D23DCA3AD961C62F356208552BB9ED529077096966D670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF", 16)
-	q, _ = new(big.Int).SetString("7FFFFFFFFFFFFFFFE487ED5110B4611A62633145C06E0E68948127044533E63A0105DF531D89CD9128A5043CC71A026EF7CA8CD9E69D218D98158536F92F8A1BA7F09AB6B6A8E122F242DABB312F3F637A262174D31BF6B585FFAE5B7A035BF6F71C35FDAD44CFD2D74F9208BE258FF324943328F6722D9EE1003E5C50B1DF82CC6D241B0E2AE9CD348B1FD47E9267AFC1B2AE91EE51D6CB0E3179AB1042A95DCF6A9483B84B4B36B3861AA7255E4C0278BA36046511B993FFFFFFFFFFFFFFFF", 16)
-	g = new(big.Int).SetInt64(2)
-	pMinus2 = new(big.Int).Sub(p, g)
-}
-
-// Conversation represents a relation with a peer. The zero value is a valid
-// Conversation, although PrivateKey must be set.
-//
-// When communicating with a peer, all inbound messages should be passed to
-// Conversation.Receive and all outbound messages to Conversation.Send. The
-// Conversation will take care of maintaining the encryption state and
-// negotiating encryption as needed.
-type Conversation struct {
-	// PrivateKey contains the private key to use to sign key exchanges.
-	PrivateKey *PrivateKey
-
-	// Rand can be set to override the entropy source. Otherwise,
-	// crypto/rand will be used.
-	Rand io.Reader
-	// If FragmentSize is set, all messages produced by Receive and Send
-	// will be fragmented into messages of, at most, this number of bytes.
-	FragmentSize int
-
-	// Once Receive has returned NewKeys once, the following fields are
-	// valid.
-	SSID           [8]byte
-	TheirPublicKey PublicKey
-
-	state, authState int
-
-	r       [16]byte
-	x, y    *big.Int
-	gx, gy  *big.Int
-	gxBytes []byte
-	digest  [sha256.Size]byte
-
-	revealKeys, sigKeys akeKeys
-
-	myKeyId         uint32
-	myCurrentDHPub  *big.Int
-	myCurrentDHPriv *big.Int
-	myLastDHPub     *big.Int
-	myLastDHPriv    *big.Int
-
-	theirKeyId        uint32
-	theirCurrentDHPub *big.Int
-	theirLastDHPub    *big.Int
-
-	keySlots [4]keySlot
-
-	myCounter    [8]byte
-	theirLastCtr [8]byte
-	oldMACs      []byte
-
-	k, n int // fragment state
-	frag []byte
-
-	smp smpState
-}
-
-// A keySlot contains key material for a specific (their keyid, my keyid) pair.
-type keySlot struct {
-	// used is true if this slot is valid. If false, it's free for reuse.
-	used                   bool
-	theirKeyId             uint32
-	myKeyId                uint32
-	sendAESKey, recvAESKey []byte
-	sendMACKey, recvMACKey []byte
-	theirLastCtr           [8]byte
-}
-
-// akeKeys are generated during key exchange. There's one set for the reveal
-// signature message and another for the signature message. In the protocol
-// spec the latter are indicated with a prime mark.
-type akeKeys struct {
-	c      [16]byte
-	m1, m2 [32]byte
-}
-
-func (c *Conversation) rand() io.Reader {
-	if c.Rand != nil {
-		return c.Rand
-	}
-	return rand.Reader
-}
-
-func (c *Conversation) randMPI(buf []byte) *big.Int {
-	_, err := io.ReadFull(c.rand(), buf)
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	return new(big.Int).SetBytes(buf)
-}
-
-// tlv represents the type-length value from the protocol.
-type tlv struct {
-	typ, length uint16
-	data        []byte
-}
-
-const (
-	tlvTypePadding          = 0
-	tlvTypeDisconnected     = 1
-	tlvTypeSMP1             = 2
-	tlvTypeSMP2             = 3
-	tlvTypeSMP3             = 4
-	tlvTypeSMP4             = 5
-	tlvTypeSMPAbort         = 6
-	tlvTypeSMP1WithQuestion = 7
-)
-
-// Receive handles a message from a peer. It returns a human readable message,
-// an indicator of whether that message was encrypted, a hint about the
-// encryption state and zero or more messages to send back to the peer.
-// These messages do not need to be passed to Send before transmission.
-func (c *Conversation) Receive(in []byte) (out []byte, encrypted bool, change SecurityChange, toSend [][]byte, err error) {
-	if bytes.HasPrefix(in, fragmentPrefix) {
-		in, err = c.processFragment(in)
-		if in == nil || err != nil {
-			return
-		}
-	}
-
-	if bytes.HasPrefix(in, msgPrefix) && in[len(in)-1] == '.' {
-		in = in[len(msgPrefix) : len(in)-1]
-	} else if version := isQuery(in); version > 0 {
-		c.authState = authStateAwaitingDHKey
-		c.reset()
-		toSend = c.encode(c.generateDHCommit())
-		return
-	} else {
-		// plaintext message
-		out = in
-		return
-	}
-
-	msg := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
-	msgLen, err := base64.StdEncoding.Decode(msg, in)
-	if err != nil {
-		err = errors.New("otr: invalid base64 encoding in message")
-		return
-	}
-	msg = msg[:msgLen]
-
-	// The first two bytes are the protocol version (2)
-	if len(msg) < 3 || msg[0] != 0 || msg[1] != 2 {
-		err = errors.New("otr: invalid OTR message")
-		return
-	}
-
-	msgType := int(msg[2])
-	msg = msg[3:]
-
-	switch msgType {
-	case msgTypeDHCommit:
-		switch c.authState {
-		case authStateNone:
-			c.authState = authStateAwaitingRevealSig
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			return
-		case authStateAwaitingDHKey:
-			// This is a 'SYN-crossing'. The greater digest wins.
-			var cmp int
-			if cmp, err = c.compareToDHCommit(msg); err != nil {
-				return
-			}
-			if cmp > 0 {
-				// We win. Retransmit DH commit.
-				toSend = c.encode(c.serializeDHCommit())
-				return
-			} else {
-				// They win. We forget about our DH commit.
-				c.authState = authStateAwaitingRevealSig
-				if err = c.processDHCommit(msg); err != nil {
-					return
-				}
-				c.reset()
-				toSend = c.encode(c.generateDHKey())
-				return
-			}
-		case authStateAwaitingRevealSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			toSend = c.encode(c.serializeDHKey())
-		case authStateAwaitingSig:
-			if err = c.processDHCommit(msg); err != nil {
-				return
-			}
-			c.reset()
-			toSend = c.encode(c.generateDHKey())
-			c.authState = authStateAwaitingRevealSig
-		default:
-			panic("bad state")
-		}
-	case msgTypeDHKey:
-		switch c.authState {
-		case authStateAwaitingDHKey:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				err = errors.New("otr: unexpected duplicate DH key")
-				return
-			}
-			toSend = c.encode(c.generateRevealSig())
-			c.authState = authStateAwaitingSig
-		case authStateAwaitingSig:
-			var isSame bool
-			if isSame, err = c.processDHKey(msg); err != nil {
-				return
-			}
-			if isSame {
-				toSend = c.encode(c.serializeDHKey())
-			}
-		}
-	case msgTypeRevealSig:
-		if c.authState != authStateAwaitingRevealSig {
-			return
-		}
-		if err = c.processRevealSig(msg); err != nil {
-			return
-		}
-		toSend = c.encode(c.generateSig())
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeSig:
-		if c.authState != authStateAwaitingSig {
-			return
-		}
-		if err = c.processSig(msg); err != nil {
-			return
-		}
-		c.authState = authStateNone
-		c.state = stateEncrypted
-		change = NewKeys
-	case msgTypeData:
-		if c.state != stateEncrypted {
-			err = errors.New("otr: encrypted message received without encrypted session established")
-			return
-		}
-		var tlvs []tlv
-		out, tlvs, err = c.processData(msg)
-		encrypted = true
-
-	EachTLV:
-		for _, inTLV := range tlvs {
-			switch inTLV.typ {
-			case tlvTypeDisconnected:
-				change = ConversationEnded
-				c.state = stateFinished
-				break EachTLV
-			case tlvTypeSMP1, tlvTypeSMP2, tlvTypeSMP3, tlvTypeSMP4, tlvTypeSMPAbort, tlvTypeSMP1WithQuestion:
-				var reply tlv
-				var complete bool
-				reply, complete, err = c.processSMP(inTLV)
-				if err == smpSecretMissingError {
-					err = nil
-					change = SMPSecretNeeded
-					c.smp.saved = &inTLV
-					return
-				}
-				if err == smpFailureError {
-					err = nil
-					change = SMPFailed
-				} else if complete {
-					change = SMPComplete
-				}
-				if reply.typ != 0 {
-					toSend = c.encode(c.generateData(nil, &reply))
-				}
-				break EachTLV
-			default:
-				// skip unknown TLVs
-			}
-		}
-	default:
-		err = errors.New("otr: unknown message type " + strconv.Itoa(msgType))
-	}
-
-	return
-}
-
-// Send takes a human readable message from the local user, possibly encrypts
-// it and returns zero one or more messages to send to the peer.
-func (c *Conversation) Send(msg []byte) ([][]byte, error) {
-	switch c.state {
-	case statePlaintext:
-		return [][]byte{msg}, nil
-	case stateEncrypted:
-		return c.encode(c.generateData(msg, nil)), nil
-	case stateFinished:
-		return nil, errors.New("otr: cannot send message because secure conversation has finished")
-	}
-
-	return nil, errors.New("otr: cannot send message in current state")
-}
-
-// SMPQuestion returns the human readable challenge question from the peer.
-// It's only valid after Receive has returned SMPSecretNeeded.
-func (c *Conversation) SMPQuestion() string {
-	return c.smp.question
-}
-
-// Authenticate begins an authentication with the peer. Authentication involves
-// an optional challenge message and a shared secret. The authentication
-// proceeds until either Receive returns SMPComplete, SMPSecretNeeded (which
-// indicates that a new authentication is happening and thus this one was
-// aborted) or SMPFailed.
-func (c *Conversation) Authenticate(question string, mutualSecret []byte) (toSend [][]byte, err error) {
-	if c.state != stateEncrypted {
-		err = errors.New("otr: can't authenticate a peer without a secure conversation established")
-		return
-	}
-
-	if c.smp.saved != nil {
-		c.calcSMPSecret(mutualSecret, false /* they started it */)
-
-		var out tlv
-		var complete bool
-		out, complete, err = c.processSMP(*c.smp.saved)
-		if complete {
-			panic("SMP completed on the first message")
-		}
-		c.smp.saved = nil
-		if out.typ != 0 {
-			toSend = c.encode(c.generateData(nil, &out))
-		}
-		return
-	}
-
-	c.calcSMPSecret(mutualSecret, true /* we started it */)
-	outs := c.startSMP(question)
-	for _, out := range outs {
-		toSend = append(toSend, c.encode(c.generateData(nil, &out))...)
-	}
-	return
-}
-
-// End ends a secure conversation by generating a termination message for
-// the peer and switches to unencrypted communication.
-func (c *Conversation) End() (toSend [][]byte) {
-	switch c.state {
-	case statePlaintext:
-		return nil
-	case stateEncrypted:
-		c.state = statePlaintext
-		return c.encode(c.generateData(nil, &tlv{typ: tlvTypeDisconnected}))
-	case stateFinished:
-		c.state = statePlaintext
-		return nil
-	}
-	panic("unreachable")
-}
-
-// IsEncrypted returns true if a message passed to Send would be encrypted
-// before transmission. This result remains valid until the next call to
-// Receive or End, which may change the state of the Conversation.
-func (c *Conversation) IsEncrypted() bool {
-	return c.state == stateEncrypted
-}
-
-var fragmentError = errors.New("otr: invalid OTR fragment")
-
-// processFragment processes a fragmented OTR message and possibly returns a
-// complete message. Fragmented messages look like "?OTR,k,n,msg," where k is
-// the fragment number (starting from 1), n is the number of fragments in this
-// message and msg is a substring of the base64 encoded message.
-func (c *Conversation) processFragment(in []byte) (out []byte, err error) {
-	in = in[len(fragmentPrefix):] // remove "?OTR,"
-	parts := bytes.Split(in, fragmentPartSeparator)
-	if len(parts) != 4 || len(parts[3]) != 0 {
-		return nil, fragmentError
-	}
-
-	k, err := strconv.Atoi(string(parts[0]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	n, err := strconv.Atoi(string(parts[1]))
-	if err != nil {
-		return nil, fragmentError
-	}
-
-	if k < 1 || n < 1 || k > n {
-		return nil, fragmentError
-	}
-
-	if k == 1 {
-		c.frag = append(c.frag[:0], parts[2]...)
-		c.k, c.n = k, n
-	} else if n == c.n && k == c.k+1 {
-		c.frag = append(c.frag, parts[2]...)
-		c.k++
-	} else {
-		c.frag = c.frag[:0]
-		c.n, c.k = 0, 0
-	}
-
-	if c.n > 0 && c.k == c.n {
-		c.n, c.k = 0, 0
-		return c.frag, nil
-	}
-
-	return nil, nil
-}
-
-func (c *Conversation) generateDHCommit() []byte {
-	_, err := io.ReadFull(c.rand(), c.r[:])
-	if err != nil {
-		panic("otr: short read from random source")
-	}
-
-	var xBytes [dhPrivateBytes]byte
-	c.x = c.randMPI(xBytes[:])
-	c.gx = new(big.Int).Exp(g, c.x, p)
-	c.gy = nil
-	c.gxBytes = appendMPI(nil, c.gx)
-
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	h.Sum(c.digest[:0])
-
-	aesCipher, err := aes.NewCipher(c.r[:])
-	if err != nil {
-		panic(err.Error())
-	}
-
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-
-	return c.serializeDHCommit()
-}
-
-func (c *Conversation) serializeDHCommit() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHCommit)
-	ret = appendData(ret, c.gxBytes)
-	ret = appendData(ret, c.digest[:])
-	return ret
-}
-
-func (c *Conversation) processDHCommit(in []byte) error {
-	var ok1, ok2 bool
-	c.gxBytes, in, ok1 = getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return errors.New("otr: corrupt DH commit message")
-	}
-	copy(c.digest[:], digest)
-	return nil
-}
-
-func (c *Conversation) compareToDHCommit(in []byte) (int, error) {
-	_, in, ok1 := getData(in)
-	digest, in, ok2 := getData(in)
-	if !ok1 || !ok2 || len(in) > 0 {
-		return 0, errors.New("otr: corrupt DH commit message")
-	}
-	return bytes.Compare(c.digest[:], digest), nil
-}
-
-func (c *Conversation) generateDHKey() []byte {
-	var yBytes [dhPrivateBytes]byte
-	c.y = c.randMPI(yBytes[:])
-	c.gy = new(big.Int).Exp(g, c.y, p)
-	return c.serializeDHKey()
-}
-
-func (c *Conversation) serializeDHKey() []byte {
-	var ret []byte
-	ret = appendU16(ret, 2) // protocol version
-	ret = append(ret, msgTypeDHKey)
-	ret = appendMPI(ret, c.gy)
-	return ret
-}
-
-func (c *Conversation) processDHKey(in []byte) (isSame bool, err error) {
-	gy, in, ok := getMPI(in)
-	if !ok {
-		err = errors.New("otr: corrupt DH key message")
-		return
-	}
-	if gy.Cmp(g) < 0 || gy.Cmp(pMinus2) > 0 {
-		err = errors.New("otr: DH value out of range")
-		return
-	}
-	if c.gy != nil {
-		isSame = c.gy.Cmp(gy) == 0
-		return
-	}
-	c.gy = gy
-	return
-}
-
-func (c *Conversation) generateEncryptedSignature(keys *akeKeys, xFirst bool) ([]byte, []byte) {
-	var xb []byte
-	xb = c.PrivateKey.PublicKey.Serialize(xb)
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = append(verifyData, xb...)
-	verifyData = appendU32(verifyData, c.myKeyId)
-
-	mac := hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	xb = appendU32(xb, c.myKeyId)
-	xb = append(xb, c.PrivateKey.Sign(c.rand(), mb)...)
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(xb, xb)
-
-	mac = hmac.New(sha256.New, keys.m2[:])
-	encryptedSig := appendData(nil, xb)
-	mac.Write(encryptedSig)
-
-	return encryptedSig, mac.Sum(nil)
-}
-
-func (c *Conversation) generateRevealSig() []byte {
-	s := new(big.Int).Exp(c.gy, c.x, p)
-	c.calcAKEKeys(s)
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.revealKeys, true /* gx comes first */)
-
-	c.myCurrentDHPub = c.gx
-	c.myCurrentDHPriv = c.x
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeRevealSig)
-	ret = appendData(ret, c.r[:])
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:20]...)
-	return ret
-}
-
-func (c *Conversation) processEncryptedSig(encryptedSig, theirMAC []byte, keys *akeKeys, xFirst bool) error {
-	mac := hmac.New(sha256.New, keys.m2[:])
-	mac.Write(appendData(nil, encryptedSig))
-	myMAC := mac.Sum(nil)[:20]
-
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		return errors.New("bad signature MAC in encrypted signature")
-	}
-
-	aesCipher, err := aes.NewCipher(keys.c[:])
-	if err != nil {
-		panic(err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encryptedSig, encryptedSig)
-
-	sig := encryptedSig
-	sig, ok1 := c.TheirPublicKey.Parse(sig)
-	keyId, sig, ok2 := getU32(sig)
-	if !ok1 || !ok2 {
-		return errors.New("otr: corrupt encrypted signature")
-	}
-
-	var verifyData []byte
-	if xFirst {
-		verifyData = appendMPI(verifyData, c.gx)
-		verifyData = appendMPI(verifyData, c.gy)
-	} else {
-		verifyData = appendMPI(verifyData, c.gy)
-		verifyData = appendMPI(verifyData, c.gx)
-	}
-	verifyData = c.TheirPublicKey.Serialize(verifyData)
-	verifyData = appendU32(verifyData, keyId)
-
-	mac = hmac.New(sha256.New, keys.m1[:])
-	mac.Write(verifyData)
-	mb := mac.Sum(nil)
-
-	sig, ok1 = c.TheirPublicKey.Verify(mb, sig)
-	if !ok1 {
-		return errors.New("bad signature in encrypted signature")
-	}
-	if len(sig) > 0 {
-		return errors.New("corrupt encrypted signature")
-	}
-
-	c.theirKeyId = keyId
-	zero(c.theirLastCtr[:])
-	return nil
-}
-
-func (c *Conversation) processRevealSig(in []byte) error {
-	r, in, ok1 := getData(in)
-	encryptedSig, in, ok2 := getData(in)
-	theirMAC := in
-	if !ok1 || !ok2 || len(theirMAC) != 20 {
-		return errors.New("otr: corrupt reveal signature message")
-	}
-
-	aesCipher, err := aes.NewCipher(r)
-	if err != nil {
-		return errors.New("otr: cannot create AES cipher from reveal signature message: " + err.Error())
-	}
-	var iv [aes.BlockSize]byte
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(c.gxBytes, c.gxBytes)
-	h := sha256.New()
-	h.Write(c.gxBytes)
-	digest := h.Sum(nil)
-	if len(digest) != len(c.digest) || subtle.ConstantTimeCompare(digest, c.digest[:]) == 0 {
-		return errors.New("otr: bad commit MAC in reveal signature message")
-	}
-	var rest []byte
-	c.gx, rest, ok1 = getMPI(c.gxBytes)
-	if !ok1 || len(rest) > 0 {
-		return errors.New("otr: gx corrupt after decryption")
-	}
-	if c.gx.Cmp(g) < 0 || c.gx.Cmp(pMinus2) > 0 {
-		return errors.New("otr: DH value out of range")
-	}
-	s := new(big.Int).Exp(c.gx, c.y, p)
-	c.calcAKEKeys(s)
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.revealKeys, true /* gx comes first */); err != nil {
-		return errors.New("otr: in reveal signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gx
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) generateSig() []byte {
-	c.myKeyId++
-
-	encryptedSig, mac := c.generateEncryptedSignature(&c.sigKeys, false /* gy comes first */)
-
-	c.myCurrentDHPub = c.gy
-	c.myCurrentDHPriv = c.y
-	c.rotateDHKeys()
-	incCounter(&c.myCounter)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeSig)
-	ret = append(ret, encryptedSig...)
-	ret = append(ret, mac[:macPrefixBytes]...)
-	return ret
-}
-
-func (c *Conversation) processSig(in []byte) error {
-	encryptedSig, in, ok1 := getData(in)
-	theirMAC := in
-	if !ok1 || len(theirMAC) != macPrefixBytes {
-		return errors.New("otr: corrupt signature message")
-	}
-
-	if err := c.processEncryptedSig(encryptedSig, theirMAC, &c.sigKeys, false /* gy comes first */); err != nil {
-		return errors.New("otr: in signature message: " + err.Error())
-	}
-
-	c.theirCurrentDHPub = c.gy
-	c.theirLastDHPub = nil
-
-	return nil
-}
-
-func (c *Conversation) rotateDHKeys() {
-	// evict slots using our retired key id
-	for i := range c.keySlots {
-		slot := &c.keySlots[i]
-		if slot.used && slot.myKeyId == c.myKeyId-1 {
-			slot.used = false
-			c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-		}
-	}
-
-	c.myLastDHPriv = c.myCurrentDHPriv
-	c.myLastDHPub = c.myCurrentDHPub
-
-	var xBytes [dhPrivateBytes]byte
-	c.myCurrentDHPriv = c.randMPI(xBytes[:])
-	c.myCurrentDHPub = new(big.Int).Exp(g, c.myCurrentDHPriv, p)
-	c.myKeyId++
-}
-
-func (c *Conversation) processData(in []byte) (out []byte, tlvs []tlv, err error) {
-	origIn := in
-	flags, in, ok1 := getU8(in)
-	theirKeyId, in, ok2 := getU32(in)
-	myKeyId, in, ok3 := getU32(in)
-	y, in, ok4 := getMPI(in)
-	counter, in, ok5 := getNBytes(in, 8)
-	encrypted, in, ok6 := getData(in)
-	macedData := origIn[:len(origIn)-len(in)]
-	theirMAC, in, ok7 := getNBytes(in, macPrefixBytes)
-	_, in, ok8 := getData(in)
-	if !ok1 || !ok2 || !ok3 || !ok4 || !ok5 || !ok6 || !ok7 || !ok8 || len(in) > 0 {
-		err = errors.New("otr: corrupt data message")
-		return
-	}
-
-	ignoreErrors := flags&1 != 0
-
-	slot, err := c.calcDataKeys(myKeyId, theirKeyId)
-	if err != nil {
-		if ignoreErrors {
-			err = nil
-		}
-		return
-	}
-
-	mac := hmac.New(sha1.New, slot.recvMACKey)
-	mac.Write([]byte{0, 2, 3})
-	mac.Write(macedData)
-	myMAC := mac.Sum(nil)
-	if len(myMAC) != len(theirMAC) || subtle.ConstantTimeCompare(myMAC, theirMAC) == 0 {
-		if !ignoreErrors {
-			err = errors.New("otr: bad MAC on data message")
-		}
-		return
-	}
-
-	if bytes.Compare(counter, slot.theirLastCtr[:]) <= 0 {
-		err = errors.New("otr: counter regressed")
-		return
-	}
-	copy(slot.theirLastCtr[:], counter)
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], counter)
-	aesCipher, err := aes.NewCipher(slot.recvAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, encrypted)
-	decrypted := encrypted
-
-	if myKeyId == c.myKeyId {
-		c.rotateDHKeys()
-	}
-	if theirKeyId == c.theirKeyId {
-		// evict slots using their retired key id
-		for i := range c.keySlots {
-			slot := &c.keySlots[i]
-			if slot.used && slot.theirKeyId == theirKeyId-1 {
-				slot.used = false
-				c.oldMACs = append(c.oldMACs, slot.recvMACKey...)
-			}
-		}
-
-		c.theirLastDHPub = c.theirCurrentDHPub
-		c.theirKeyId++
-		c.theirCurrentDHPub = y
-	}
-
-	if nulPos := bytes.IndexByte(decrypted, 0); nulPos >= 0 {
-		out = decrypted[:nulPos]
-		tlvData := decrypted[nulPos+1:]
-		for len(tlvData) > 0 {
-			var t tlv
-			var ok1, ok2, ok3 bool
-
-			t.typ, tlvData, ok1 = getU16(tlvData)
-			t.length, tlvData, ok2 = getU16(tlvData)
-			t.data, tlvData, ok3 = getNBytes(tlvData, int(t.length))
-			if !ok1 || !ok2 || !ok3 {
-				err = errors.New("otr: corrupt tlv data")
-				return
-			}
-			tlvs = append(tlvs, t)
-		}
-	} else {
-		out = decrypted
-	}
-
-	return
-}
-
-func (c *Conversation) generateData(msg []byte, extra *tlv) []byte {
-	slot, err := c.calcDataKeys(c.myKeyId-1, c.theirKeyId)
-	if err != nil {
-		panic("otr: failed to generate sending keys: " + err.Error())
-	}
-
-	var plaintext []byte
-	plaintext = append(plaintext, msg...)
-	plaintext = append(plaintext, 0)
-
-	padding := paddingGranularity - ((len(plaintext) + 4) % paddingGranularity)
-	plaintext = appendU16(plaintext, tlvTypePadding)
-	plaintext = appendU16(plaintext, uint16(padding))
-	for i := 0; i < padding; i++ {
-		plaintext = append(plaintext, 0)
-	}
-
-	if extra != nil {
-		plaintext = appendU16(plaintext, extra.typ)
-		plaintext = appendU16(plaintext, uint16(len(extra.data)))
-		plaintext = append(plaintext, extra.data...)
-	}
-
-	encrypted := make([]byte, len(plaintext))
-
-	var iv [aes.BlockSize]byte
-	copy(iv[:], c.myCounter[:])
-	aesCipher, err := aes.NewCipher(slot.sendAESKey)
-	if err != nil {
-		panic(err.Error())
-	}
-	ctr := cipher.NewCTR(aesCipher, iv[:])
-	ctr.XORKeyStream(encrypted, plaintext)
-
-	var ret []byte
-	ret = appendU16(ret, 2)
-	ret = append(ret, msgTypeData)
-	ret = append(ret, 0 /* flags */)
-	ret = appendU32(ret, c.myKeyId-1)
-	ret = appendU32(ret, c.theirKeyId)
-	ret = appendMPI(ret, c.myCurrentDHPub)
-	ret = append(ret, c.myCounter[:]...)
-	ret = appendData(ret, encrypted)
-
-	mac := hmac.New(sha1.New, slot.sendMACKey)
-	mac.Write(ret)
-	ret = append(ret, mac.Sum(nil)[:macPrefixBytes]...)
-	ret = appendData(ret, c.oldMACs)
-	c.oldMACs = nil
-	incCounter(&c.myCounter)
-
-	return ret
-}
-
-func incCounter(counter *[8]byte) {
-	for i := 7; i >= 0; i-- {
-		counter[i]++
-		if counter[i] > 0 {
-			break
-		}
-	}
-}
-
-// calcDataKeys computes the keys used to encrypt a data message given the key
-// IDs.
-func (c *Conversation) calcDataKeys(myKeyId, theirKeyId uint32) (slot *keySlot, err error) {
-	// Check for a cache hit.
-	for i := range c.keySlots {
-		slot = &c.keySlots[i]
-		if slot.used && slot.theirKeyId == theirKeyId && slot.myKeyId == myKeyId {
-			return
-		}
-	}
-
-	// Find an empty slot to write into.
-	slot = nil
-	for i := range c.keySlots {
-		if !c.keySlots[i].used {
-			slot = &c.keySlots[i]
-			break
-		}
-	}
-	if slot == nil {
-		return nil, errors.New("otr: internal error: no more key slots")
-	}
-
-	var myPriv, myPub, theirPub *big.Int
-
-	if myKeyId == c.myKeyId {
-		myPriv = c.myCurrentDHPriv
-		myPub = c.myCurrentDHPub
-	} else if myKeyId == c.myKeyId-1 {
-		myPriv = c.myLastDHPriv
-		myPub = c.myLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when I'm on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	if theirKeyId == c.theirKeyId {
-		theirPub = c.theirCurrentDHPub
-	} else if theirKeyId == c.theirKeyId-1 && c.theirLastDHPub != nil {
-		theirPub = c.theirLastDHPub
-	} else {
-		err = errors.New("otr: peer requested keyid " + strconv.FormatUint(uint64(myKeyId), 10) + " when they're on " + strconv.FormatUint(uint64(c.myKeyId), 10))
-		return
-	}
-
-	var sendPrefixByte, recvPrefixByte [1]byte
-
-	if myPub.Cmp(theirPub) > 0 {
-		// we're the high end
-		sendPrefixByte[0], recvPrefixByte[0] = 1, 2
-	} else {
-		// we're the low end
-		sendPrefixByte[0], recvPrefixByte[0] = 2, 1
-	}
-
-	s := new(big.Int).Exp(theirPub, myPriv, p)
-	sBytes := appendMPI(nil, s)
-
-	h := sha1.New()
-	h.Write(sendPrefixByte[:])
-	h.Write(sBytes)
-	slot.sendAESKey = h.Sum(slot.sendAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.sendAESKey)
-	slot.sendMACKey = h.Sum(slot.sendMACKey[:0])
-
-	h.Reset()
-	h.Write(recvPrefixByte[:])
-	h.Write(sBytes)
-	slot.recvAESKey = h.Sum(slot.recvAESKey[:0])[:16]
-
-	h.Reset()
-	h.Write(slot.recvAESKey)
-	slot.recvMACKey = h.Sum(slot.recvMACKey[:0])
-
-	slot.theirKeyId = theirKeyId
-	slot.myKeyId = myKeyId
-	slot.used = true
-
-	zero(slot.theirLastCtr[:])
-	return
-}
-
-func (c *Conversation) calcAKEKeys(s *big.Int) {
-	mpi := appendMPI(nil, s)
-	h := sha256.New()
-
-	var cBytes [32]byte
-	hashWithPrefix(c.SSID[:], 0, mpi, h)
-
-	hashWithPrefix(cBytes[:], 1, mpi, h)
-	copy(c.revealKeys.c[:], cBytes[:16])
-	copy(c.sigKeys.c[:], cBytes[16:])
-
-	hashWithPrefix(c.revealKeys.m1[:], 2, mpi, h)
-	hashWithPrefix(c.revealKeys.m2[:], 3, mpi, h)
-	hashWithPrefix(c.sigKeys.m1[:], 4, mpi, h)
-	hashWithPrefix(c.sigKeys.m2[:], 5, mpi, h)
-}
-
-func hashWithPrefix(out []byte, prefix byte, in []byte, h hash.Hash) {
-	h.Reset()
-	var p [1]byte
-	p[0] = prefix
-	h.Write(p[:])
-	h.Write(in)
-	if len(out) == h.Size() {
-		h.Sum(out[:0])
-	} else {
-		digest := h.Sum(nil)
-		copy(out, digest)
-	}
-}
-
-func (c *Conversation) encode(msg []byte) [][]byte {
-	b64 := make([]byte, base64.StdEncoding.EncodedLen(len(msg))+len(msgPrefix)+1)
-	base64.StdEncoding.Encode(b64[len(msgPrefix):], msg)
-	copy(b64, msgPrefix)
-	b64[len(b64)-1] = '.'
-
-	if c.FragmentSize < minFragmentSize || len(b64) <= c.FragmentSize {
-		// We can encode this in a single fragment.
-		return [][]byte{b64}
-	}
-
-	// We have to fragment this message.
-	var ret [][]byte
-	bytesPerFragment := c.FragmentSize - minFragmentSize
-	numFragments := (len(b64) + bytesPerFragment) / bytesPerFragment
-
-	for i := 0; i < numFragments; i++ {
-		frag := []byte("?OTR," + strconv.Itoa(i+1) + "," + strconv.Itoa(numFragments) + ",")
-		todo := bytesPerFragment
-		if todo > len(b64) {
-			todo = len(b64)
-		}
-		frag = append(frag, b64[:todo]...)
-		b64 = b64[todo:]
-		frag = append(frag, ',')
-		ret = append(ret, frag)
-	}
-
-	return ret
-}
-
-func (c *Conversation) reset() {
-	c.myKeyId = 0
-
-	for i := range c.keySlots {
-		c.keySlots[i].used = false
-	}
-}
-
-type PublicKey struct {
-	dsa.PublicKey
-}
-
-func (pk *PublicKey) Parse(in []byte) ([]byte, bool) {
-	var ok bool
-	var pubKeyType uint16
-
-	if pubKeyType, in, ok = getU16(in); !ok || pubKeyType != 0 {
-		return nil, false
-	}
-	if pk.P, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Q, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.G, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-	if pk.Y, in, ok = getMPI(in); !ok {
-		return nil, false
-	}
-
-	return in, true
-}
-
-func (pk *PublicKey) Serialize(in []byte) []byte {
-	in = appendU16(in, 0)
-	in = appendMPI(in, pk.P)
-	in = appendMPI(in, pk.Q)
-	in = appendMPI(in, pk.G)
-	in = appendMPI(in, pk.Y)
-	return in
-}
-
-// Fingerprint returns the 20-byte, binary fingerprint of the PublicKey.
-func (pk *PublicKey) Fingerprint() []byte {
-	b := pk.Serialize(nil)
-	h := sha1.New()
-	h.Write(b[2:])
-	return h.Sum(nil)
-}
-
-func (pk *PublicKey) Verify(hashed, sig []byte) ([]byte, bool) {
-	if len(sig) != 2*dsaSubgroupBytes {
-		return nil, false
-	}
-	r := new(big.Int).SetBytes(sig[:dsaSubgroupBytes])
-	s := new(big.Int).SetBytes(sig[dsaSubgroupBytes:])
-	ok := dsa.Verify(&pk.PublicKey, hashed, r, s)
-	return sig[dsaSubgroupBytes*2:], ok
-}
-
-type PrivateKey struct {
-	PublicKey
-	dsa.PrivateKey
-}
-
-func (priv *PrivateKey) Sign(rand io.Reader, hashed []byte) []byte {
-	r, s, err := dsa.Sign(rand, &priv.PrivateKey, hashed)
-	if err != nil {
-		panic(err.Error())
-	}
-	rBytes := r.Bytes()
-	sBytes := s.Bytes()
-	if len(rBytes) > dsaSubgroupBytes || len(sBytes) > dsaSubgroupBytes {
-		panic("DSA signature too large")
-	}
-
-	out := make([]byte, 2*dsaSubgroupBytes)
-	copy(out[dsaSubgroupBytes-len(rBytes):], rBytes)
-	copy(out[len(out)-len(sBytes):], sBytes)
-	return out
-}
-
-func (priv *PrivateKey) Serialize(in []byte) []byte {
-	in = priv.PublicKey.Serialize(in)
-	in = appendMPI(in, priv.PrivateKey.X)
-	return in
-}
-
-func (priv *PrivateKey) Parse(in []byte) ([]byte, bool) {
-	in, ok := priv.PublicKey.Parse(in)
-	if !ok {
-		return in, ok
-	}
-	priv.PrivateKey.PublicKey = priv.PublicKey.PublicKey
-	priv.PrivateKey.X, in, ok = getMPI(in)
-	return in, ok
-}
-
-func (priv *PrivateKey) Generate(rand io.Reader) {
-	if err := dsa.GenerateParameters(&priv.PrivateKey.PublicKey.Parameters, rand, dsa.L1024N160); err != nil {
-		panic(err.Error())
-	}
-	if err := dsa.GenerateKey(&priv.PrivateKey, rand); err != nil {
-		panic(err.Error())
-	}
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-}
-
-func notHex(r rune) bool {
-	if r >= '0' && r <= '9' ||
-		r >= 'a' && r <= 'f' ||
-		r >= 'A' && r <= 'F' {
-		return false
-	}
-
-	return true
-}
-
-// Import parses the contents of a libotr private key file.
-func (priv *PrivateKey) Import(in []byte) bool {
-	mpiStart := []byte(" #")
-
-	mpis := make([]*big.Int, 5)
-
-	for i := 0; i < len(mpis); i++ {
-		start := bytes.Index(in, mpiStart)
-		if start == -1 {
-			return false
-		}
-		in = in[start+len(mpiStart):]
-		end := bytes.IndexFunc(in, notHex)
-		if end == -1 {
-			return false
-		}
-		hexBytes := in[:end]
-		in = in[end:]
-
-		if len(hexBytes)&1 != 0 {
-			return false
-		}
-
-		mpiBytes := make([]byte, len(hexBytes)/2)
-		if _, err := hex.Decode(mpiBytes, hexBytes); err != nil {
-			return false
-		}
-
-		mpis[i] = new(big.Int).SetBytes(mpiBytes)
-	}
-
-	for _, mpi := range mpis {
-		if mpi.Sign() <= 0 {
-			return false
-		}
-	}
-
-	priv.PrivateKey.P = mpis[0]
-	priv.PrivateKey.Q = mpis[1]
-	priv.PrivateKey.G = mpis[2]
-	priv.PrivateKey.Y = mpis[3]
-	priv.PrivateKey.X = mpis[4]
-	priv.PublicKey.PublicKey = priv.PrivateKey.PublicKey
-
-	a := new(big.Int).Exp(priv.PrivateKey.G, priv.PrivateKey.X, priv.PrivateKey.P)
-	return a.Cmp(priv.PrivateKey.Y) == 0
-}
-
-func getU8(in []byte) (uint8, []byte, bool) {
-	if len(in) < 1 {
-		return 0, in, false
-	}
-	return in[0], in[1:], true
-}
-
-func getU16(in []byte) (uint16, []byte, bool) {
-	if len(in) < 2 {
-		return 0, in, false
-	}
-	r := uint16(in[0])<<8 | uint16(in[1])
-	return r, in[2:], true
-}
-
-func getU32(in []byte) (uint32, []byte, bool) {
-	if len(in) < 4 {
-		return 0, in, false
-	}
-	r := uint32(in[0])<<24 | uint32(in[1])<<16 | uint32(in[2])<<8 | uint32(in[3])
-	return r, in[4:], true
-}
-
-func getMPI(in []byte) (*big.Int, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	r := new(big.Int).SetBytes(in[:l])
-	return r, in[l:], true
-}
-
-func getData(in []byte) ([]byte, []byte, bool) {
-	l, in, ok := getU32(in)
-	if !ok || uint32(len(in)) < l {
-		return nil, in, false
-	}
-	return in[:l], in[l:], true
-}
-
-func getNBytes(in []byte, n int) ([]byte, []byte, bool) {
-	if len(in) < n {
-		return nil, in, false
-	}
-	return in[:n], in[n:], true
-}
-
-func appendU16(out []byte, v uint16) []byte {
-	out = append(out, byte(v>>8), byte(v))
-	return out
-}
-
-func appendU32(out []byte, v uint32) []byte {
-	out = append(out, byte(v>>24), byte(v>>16), byte(v>>8), byte(v))
-	return out
-}
-
-func appendData(out, v []byte) []byte {
-	out = appendU32(out, uint32(len(v)))
-	out = append(out, v...)
-	return out
-}
-
-func appendMPI(out []byte, v *big.Int) []byte {
-	vBytes := v.Bytes()
-	out = appendU32(out, uint32(len(vBytes)))
-	out = append(out, vBytes...)
-	return out
-}
-
-func appendMPIs(out []byte, mpis ...*big.Int) []byte {
-	for _, mpi := range mpis {
-		out = appendMPI(out, mpi)
-	}
-	return out
-}
-
-func zero(b []byte) {
-	for i := range b {
-		b[i] = 0
-	}
-}
diff --git a/vendor/golang.org/x/crypto/otr/otr_test.go b/vendor/golang.org/x/crypto/otr/otr_test.go
deleted file mode 100644
index cfcd062..0000000
--- a/vendor/golang.org/x/crypto/otr/otr_test.go
+++ /dev/null
@@ -1,470 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package otr
-
-import (
-	"bufio"
-	"bytes"
-	"crypto/rand"
-	"encoding/hex"
-	"math/big"
-	"os"
-	"os/exec"
-	"testing"
-)
-
-var isQueryTests = []struct {
-	msg             string
-	expectedVersion int
-}{
-	{"foo", 0},
-	{"?OtR", 0},
-	{"?OtR?", 0},
-	{"?OTR?", 0},
-	{"?OTRv?", 0},
-	{"?OTRv1?", 0},
-	{"?OTR?v1?", 0},
-	{"?OTR?v?", 0},
-	{"?OTR?v2?", 2},
-	{"?OTRv2?", 2},
-	{"?OTRv23?", 2},
-	{"?OTRv23 ?", 0},
-}
-
-func TestIsQuery(t *testing.T) {
-	for i, test := range isQueryTests {
-		version := isQuery([]byte(test.msg))
-		if version != test.expectedVersion {
-			t.Errorf("#%d: got %d, want %d", i, version, test.expectedVersion)
-		}
-	}
-}
-
-var alicePrivateKeyHex = "000000000080c81c2cb2eb729b7e6fd48e975a932c638b3a9055478583afa46755683e30102447f6da2d8bec9f386bbb5da6403b0040fee8650b6ab2d7f32c55ab017ae9b6aec8c324ab5844784e9a80e194830d548fb7f09a0410df2c4d5c8bc2b3e9ad484e65412be689cf0834694e0839fb2954021521ffdffb8f5c32c14dbf2020b3ce7500000014da4591d58def96de61aea7b04a8405fe1609308d000000808ddd5cb0b9d66956e3dea5a915d9aba9d8a6e7053b74dadb2fc52f9fe4e5bcc487d2305485ed95fed026ad93f06ebb8c9e8baf693b7887132c7ffdd3b0f72f4002ff4ed56583ca7c54458f8c068ca3e8a4dfa309d1dd5d34e2a4b68e6f4338835e5e0fb4317c9e4c7e4806dafda3ef459cd563775a586dd91b1319f72621bf3f00000080b8147e74d8c45e6318c37731b8b33b984a795b3653c2cd1d65cc99efe097cb7eb2fa49569bab5aab6e8a1c261a27d0f7840a5e80b317e6683042b59b6dceca2879c6ffc877a465be690c15e4a42f9a7588e79b10faac11b1ce3741fcef7aba8ce05327a2c16d279ee1b3d77eb783fb10e3356caa25635331e26dd42b8396c4d00000001420bec691fea37ecea58a5c717142f0b804452f57"
-
-var aliceFingerprintHex = "0bb01c360424522e94ee9c346ce877a1a4288b2f"
-
-var bobPrivateKeyHex = "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"
-
-func TestKeySerialization(t *testing.T) {
-	var priv PrivateKey
-	alicePrivateKey, _ := hex.DecodeString(alicePrivateKeyHex)
-	rest, ok := priv.Parse(alicePrivateKey)
-	if !ok {
-		t.Error("failed to parse private key")
-	}
-	if len(rest) > 0 {
-		t.Error("data remaining after parsing private key")
-	}
-
-	out := priv.Serialize(nil)
-	if !bytes.Equal(alicePrivateKey, out) {
-		t.Errorf("serialization (%x) is not equal to original (%x)", out, alicePrivateKey)
-	}
-
-	aliceFingerprint, _ := hex.DecodeString(aliceFingerprintHex)
-	fingerprint := priv.PublicKey.Fingerprint()
-	if !bytes.Equal(aliceFingerprint, fingerprint) {
-		t.Errorf("fingerprint (%x) is not equal to expected value (%x)", fingerprint, aliceFingerprint)
-	}
-}
-
-const libOTRPrivateKey = `(privkeys
- (account
-(name "foo@example.com")
-(protocol prpl-jabber)
-(private-key 
- (dsa 
-  (p #00FC07ABCF0DC916AFF6E9AE47BEF60C7AB9B4D6B2469E436630E36F8A489BE812486A09F30B71224508654940A835301ACC525A4FF133FC152CC53DCC59D65C30A54F1993FE13FE63E5823D4C746DB21B90F9B9C00B49EC7404AB1D929BA7FBA12F2E45C6E0A651689750E8528AB8C031D3561FECEE72EBB4A090D450A9B7A857#)
-  (q #00997BD266EF7B1F60A5C23F3A741F2AEFD07A2081#)
-  (g #535E360E8A95EBA46A4F7DE50AD6E9B2A6DB785A66B64EB9F20338D2A3E8FB0E94725848F1AA6CC567CB83A1CC517EC806F2E92EAE71457E80B2210A189B91250779434B41FC8A8873F6DB94BEA7D177F5D59E7E114EE10A49CFD9CEF88AE43387023B672927BA74B04EB6BBB5E57597766A2F9CE3857D7ACE3E1E3BC1FC6F26#)
-  (y #0AC8670AD767D7A8D9D14CC1AC6744CD7D76F993B77FFD9E39DF01E5A6536EF65E775FCEF2A983E2A19BD6415500F6979715D9FD1257E1FE2B6F5E1E74B333079E7C880D39868462A93454B41877BE62E5EF0A041C2EE9C9E76BD1E12AE25D9628DECB097025DD625EF49C3258A1A3C0FF501E3DC673B76D7BABF349009B6ECF#)
-  (x #14D0345A3562C480A039E3C72764F72D79043216#)
-  )
- )
- )
-)`
-
-func TestParseLibOTRPrivateKey(t *testing.T) {
-	var priv PrivateKey
-
-	if !priv.Import([]byte(libOTRPrivateKey)) {
-		t.Fatalf("Failed to import sample private key")
-	}
-}
-
-func TestSignVerify(t *testing.T) {
-	var priv PrivateKey
-	alicePrivateKey, _ := hex.DecodeString(alicePrivateKeyHex)
-	_, ok := priv.Parse(alicePrivateKey)
-	if !ok {
-		t.Error("failed to parse private key")
-	}
-
-	var msg [32]byte
-	rand.Reader.Read(msg[:])
-
-	sig := priv.Sign(rand.Reader, msg[:])
-	rest, ok := priv.PublicKey.Verify(msg[:], sig)
-	if !ok {
-		t.Errorf("signature (%x) of %x failed to verify", sig, msg[:])
-	} else if len(rest) > 0 {
-		t.Error("signature data remains after verification")
-	}
-
-	sig[10] ^= 80
-	_, ok = priv.PublicKey.Verify(msg[:], sig)
-	if ok {
-		t.Errorf("corrupted signature (%x) of %x verified", sig, msg[:])
-	}
-}
-
-func setupConversation(t *testing.T) (alice, bob *Conversation) {
-	alicePrivateKey, _ := hex.DecodeString(alicePrivateKeyHex)
-	bobPrivateKey, _ := hex.DecodeString(bobPrivateKeyHex)
-
-	alice, bob = new(Conversation), new(Conversation)
-
-	alice.PrivateKey = new(PrivateKey)
-	bob.PrivateKey = new(PrivateKey)
-	alice.PrivateKey.Parse(alicePrivateKey)
-	bob.PrivateKey.Parse(bobPrivateKey)
-	alice.FragmentSize = 100
-	bob.FragmentSize = 100
-
-	if alice.IsEncrypted() {
-		t.Error("Alice believes that the conversation is secure before we've started")
-	}
-	if bob.IsEncrypted() {
-		t.Error("Bob believes that the conversation is secure before we've started")
-	}
-
-	performHandshake(t, alice, bob)
-	return alice, bob
-}
-
-func performHandshake(t *testing.T, alice, bob *Conversation) {
-	var alicesMessage, bobsMessage [][]byte
-	var out []byte
-	var aliceChange, bobChange SecurityChange
-	var err error
-	alicesMessage = append(alicesMessage, []byte(QueryMessage))
-
-	for round := 0; len(alicesMessage) > 0 || len(bobsMessage) > 0; round++ {
-		bobsMessage = nil
-		for i, msg := range alicesMessage {
-			out, _, bobChange, bobsMessage, err = bob.Receive(msg)
-			if len(out) > 0 {
-				t.Errorf("Bob generated output during key exchange, round %d, message %d", round, i)
-			}
-			if err != nil {
-				t.Fatalf("Bob returned an error, round %d, message %d (%x): %s", round, i, msg, err)
-			}
-			if len(bobsMessage) > 0 && i != len(alicesMessage)-1 {
-				t.Errorf("Bob produced output while processing a fragment, round %d, message %d", round, i)
-			}
-		}
-
-		alicesMessage = nil
-		for i, msg := range bobsMessage {
-			out, _, aliceChange, alicesMessage, err = alice.Receive(msg)
-			if len(out) > 0 {
-				t.Errorf("Alice generated output during key exchange, round %d, message %d", round, i)
-			}
-			if err != nil {
-				t.Fatalf("Alice returned an error, round %d, message %d (%x): %s", round, i, msg, err)
-			}
-			if len(alicesMessage) > 0 && i != len(bobsMessage)-1 {
-				t.Errorf("Alice produced output while processing a fragment, round %d, message %d", round, i)
-			}
-		}
-	}
-
-	if aliceChange != NewKeys {
-		t.Errorf("Alice terminated without signaling new keys")
-	}
-	if bobChange != NewKeys {
-		t.Errorf("Bob terminated without signaling new keys")
-	}
-
-	if !bytes.Equal(alice.SSID[:], bob.SSID[:]) {
-		t.Errorf("Session identifiers don't match. Alice has %x, Bob has %x", alice.SSID[:], bob.SSID[:])
-	}
-
-	if !alice.IsEncrypted() {
-		t.Error("Alice doesn't believe that the conversation is secure")
-	}
-	if !bob.IsEncrypted() {
-		t.Error("Bob doesn't believe that the conversation is secure")
-	}
-}
-
-const (
-	firstRoundTrip = iota
-	subsequentRoundTrip
-	noMACKeyCheck
-)
-
-func roundTrip(t *testing.T, alice, bob *Conversation, message []byte, macKeyCheck int) {
-	alicesMessage, err := alice.Send(message)
-	if err != nil {
-		t.Errorf("Error from Alice sending message: %s", err)
-	}
-
-	if len(alice.oldMACs) != 0 {
-		t.Errorf("Alice has not revealed all MAC keys")
-	}
-
-	for i, msg := range alicesMessage {
-		out, encrypted, _, _, err := bob.Receive(msg)
-
-		if err != nil {
-			t.Errorf("Error generated while processing test message: %s", err.Error())
-		}
-		if len(out) > 0 {
-			if i != len(alicesMessage)-1 {
-				t.Fatal("Bob produced a message while processing a fragment of Alice's")
-			}
-			if !encrypted {
-				t.Errorf("Message was not marked as encrypted")
-			}
-			if !bytes.Equal(out, message) {
-				t.Errorf("Message corrupted: got %x, want %x", out, message)
-			}
-		}
-	}
-
-	switch macKeyCheck {
-	case firstRoundTrip:
-		if len(bob.oldMACs) != 0 {
-			t.Errorf("Bob should not have MAC keys to reveal")
-		}
-	case subsequentRoundTrip:
-		if len(bob.oldMACs) != 40 {
-			t.Errorf("Bob has %d bytes of MAC keys to reveal, but should have 40", len(bob.oldMACs))
-		}
-	}
-
-	bobsMessage, err := bob.Send(message)
-	if err != nil {
-		t.Errorf("Error from Bob sending message: %s", err)
-	}
-
-	if len(bob.oldMACs) != 0 {
-		t.Errorf("Bob has not revealed all MAC keys")
-	}
-
-	for i, msg := range bobsMessage {
-		out, encrypted, _, _, err := alice.Receive(msg)
-
-		if err != nil {
-			t.Errorf("Error generated while processing test message: %s", err.Error())
-		}
-		if len(out) > 0 {
-			if i != len(bobsMessage)-1 {
-				t.Fatal("Alice produced a message while processing a fragment of Bob's")
-			}
-			if !encrypted {
-				t.Errorf("Message was not marked as encrypted")
-			}
-			if !bytes.Equal(out, message) {
-				t.Errorf("Message corrupted: got %x, want %x", out, message)
-			}
-		}
-	}
-
-	switch macKeyCheck {
-	case firstRoundTrip:
-		if len(alice.oldMACs) != 20 {
-			t.Errorf("Alice has %d bytes of MAC keys to reveal, but should have 20", len(alice.oldMACs))
-		}
-	case subsequentRoundTrip:
-		if len(alice.oldMACs) != 40 {
-			t.Errorf("Alice has %d bytes of MAC keys to reveal, but should have 40", len(alice.oldMACs))
-		}
-	}
-}
-
-func TestConversation(t *testing.T) {
-	alice, bob := setupConversation(t)
-
-	var testMessages = [][]byte{
-		[]byte("hello"), []byte("bye"),
-	}
-
-	roundTripType := firstRoundTrip
-
-	for _, testMessage := range testMessages {
-		roundTrip(t, alice, bob, testMessage, roundTripType)
-		roundTripType = subsequentRoundTrip
-	}
-}
-
-func TestGoodSMP(t *testing.T) {
-	var alice, bob Conversation
-
-	alice.smp.secret = new(big.Int).SetInt64(42)
-	bob.smp.secret = alice.smp.secret
-
-	var alicesMessages, bobsMessages []tlv
-	var aliceComplete, bobComplete bool
-	var err error
-	var out tlv
-
-	alicesMessages = alice.startSMP("")
-	for round := 0; len(alicesMessages) > 0 || len(bobsMessages) > 0; round++ {
-		bobsMessages = bobsMessages[:0]
-		for i, msg := range alicesMessages {
-			out, bobComplete, err = bob.processSMP(msg)
-			if err != nil {
-				t.Errorf("Error from Bob in round %d: %s", round, err)
-			}
-			if bobComplete && i != len(alicesMessages)-1 {
-				t.Errorf("Bob returned a completed signal before processing all of Alice's messages in round %d", round)
-			}
-			if out.typ != 0 {
-				bobsMessages = append(bobsMessages, out)
-			}
-		}
-
-		alicesMessages = alicesMessages[:0]
-		for i, msg := range bobsMessages {
-			out, aliceComplete, err = alice.processSMP(msg)
-			if err != nil {
-				t.Errorf("Error from Alice in round %d: %s", round, err)
-			}
-			if aliceComplete && i != len(bobsMessages)-1 {
-				t.Errorf("Alice returned a completed signal before processing all of Bob's messages in round %d", round)
-			}
-			if out.typ != 0 {
-				alicesMessages = append(alicesMessages, out)
-			}
-		}
-	}
-
-	if !aliceComplete || !bobComplete {
-		t.Errorf("SMP completed without both sides reporting success: alice: %v, bob: %v\n", aliceComplete, bobComplete)
-	}
-}
-
-func TestBadSMP(t *testing.T) {
-	var alice, bob Conversation
-
-	alice.smp.secret = new(big.Int).SetInt64(42)
-	bob.smp.secret = new(big.Int).SetInt64(43)
-
-	var alicesMessages, bobsMessages []tlv
-
-	alicesMessages = alice.startSMP("")
-	for round := 0; len(alicesMessages) > 0 || len(bobsMessages) > 0; round++ {
-		bobsMessages = bobsMessages[:0]
-		for _, msg := range alicesMessages {
-			out, complete, _ := bob.processSMP(msg)
-			if complete {
-				t.Errorf("Bob signaled completion in round %d", round)
-			}
-			if out.typ != 0 {
-				bobsMessages = append(bobsMessages, out)
-			}
-		}
-
-		alicesMessages = alicesMessages[:0]
-		for _, msg := range bobsMessages {
-			out, complete, _ := alice.processSMP(msg)
-			if complete {
-				t.Errorf("Alice signaled completion in round %d", round)
-			}
-			if out.typ != 0 {
-				alicesMessages = append(alicesMessages, out)
-			}
-		}
-	}
-}
-
-func TestRehandshaking(t *testing.T) {
-	alice, bob := setupConversation(t)
-	roundTrip(t, alice, bob, []byte("test"), firstRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 2"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 3"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 4"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 5"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 6"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 7"), subsequentRoundTrip)
-	roundTrip(t, alice, bob, []byte("test 8"), subsequentRoundTrip)
-	performHandshake(t, alice, bob)
-	roundTrip(t, alice, bob, []byte("test"), noMACKeyCheck)
-	roundTrip(t, alice, bob, []byte("test 2"), noMACKeyCheck)
-}
-
-func TestAgainstLibOTR(t *testing.T) {
-	// This test requires otr.c.test to be built as /tmp/a.out.
-	// If enabled, this tests runs forever performing OTR handshakes in a
-	// loop.
-	return
-
-	alicePrivateKey, _ := hex.DecodeString(alicePrivateKeyHex)
-	var alice Conversation
-	alice.PrivateKey = new(PrivateKey)
-	alice.PrivateKey.Parse(alicePrivateKey)
-
-	cmd := exec.Command("/tmp/a.out")
-	cmd.Stderr = os.Stderr
-
-	out, err := cmd.StdinPipe()
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer out.Close()
-	stdout, err := cmd.StdoutPipe()
-	if err != nil {
-		t.Fatal(err)
-	}
-	in := bufio.NewReader(stdout)
-
-	if err := cmd.Start(); err != nil {
-		t.Fatal(err)
-	}
-
-	out.Write([]byte(QueryMessage))
-	out.Write([]byte("\n"))
-	var expectedText = []byte("test message")
-
-	for {
-		line, isPrefix, err := in.ReadLine()
-		if isPrefix {
-			t.Fatal("line from subprocess too long")
-		}
-		if err != nil {
-			t.Fatal(err)
-		}
-		text, encrypted, change, alicesMessage, err := alice.Receive(line)
-		if err != nil {
-			t.Fatal(err)
-		}
-		for _, msg := range alicesMessage {
-			out.Write(msg)
-			out.Write([]byte("\n"))
-		}
-		if change == NewKeys {
-			alicesMessage, err := alice.Send([]byte("Go -> libotr test message"))
-			if err != nil {
-				t.Fatalf("error sending message: %s", err.Error())
-			} else {
-				for _, msg := range alicesMessage {
-					out.Write(msg)
-					out.Write([]byte("\n"))
-				}
-			}
-		}
-		if len(text) > 0 {
-			if !bytes.Equal(text, expectedText) {
-				t.Fatalf("expected %x, but got %x", expectedText, text)
-			}
-			if !encrypted {
-				t.Fatal("message wasn't encrypted")
-			}
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/otr/smp.go b/vendor/golang.org/x/crypto/otr/smp.go
deleted file mode 100644
index dc6de4e..0000000
--- a/vendor/golang.org/x/crypto/otr/smp.go
+++ /dev/null
@@ -1,572 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file implements the Socialist Millionaires Protocol as described in
-// http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html. The protocol
-// specification is required in order to understand this code and, where
-// possible, the variable names in the code match up with the spec.
-
-package otr
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"errors"
-	"hash"
-	"math/big"
-)
-
-type smpFailure string
-
-func (s smpFailure) Error() string {
-	return string(s)
-}
-
-var smpFailureError = smpFailure("otr: SMP protocol failed")
-var smpSecretMissingError = smpFailure("otr: mutual secret needed")
-
-const smpVersion = 1
-
-const (
-	smpState1 = iota
-	smpState2
-	smpState3
-	smpState4
-)
-
-type smpState struct {
-	state                  int
-	a2, a3, b2, b3, pb, qb *big.Int
-	g2a, g3a               *big.Int
-	g2, g3                 *big.Int
-	g3b, papb, qaqb, ra    *big.Int
-	saved                  *tlv
-	secret                 *big.Int
-	question               string
-}
-
-func (c *Conversation) startSMP(question string) (tlvs []tlv) {
-	if c.smp.state != smpState1 {
-		tlvs = append(tlvs, c.generateSMPAbort())
-	}
-	tlvs = append(tlvs, c.generateSMP1(question))
-	c.smp.question = ""
-	c.smp.state = smpState2
-	return
-}
-
-func (c *Conversation) resetSMP() {
-	c.smp.state = smpState1
-	c.smp.secret = nil
-	c.smp.question = ""
-}
-
-func (c *Conversation) processSMP(in tlv) (out tlv, complete bool, err error) {
-	data := in.data
-
-	switch in.typ {
-	case tlvTypeSMPAbort:
-		if c.smp.state != smpState1 {
-			err = smpFailureError
-		}
-		c.resetSMP()
-		return
-	case tlvTypeSMP1WithQuestion:
-		// We preprocess this into a SMP1 message.
-		nulPos := bytes.IndexByte(data, 0)
-		if nulPos == -1 {
-			err = errors.New("otr: SMP message with question didn't contain a NUL byte")
-			return
-		}
-		c.smp.question = string(data[:nulPos])
-		data = data[nulPos+1:]
-	}
-
-	numMPIs, data, ok := getU32(data)
-	if !ok || numMPIs > 20 {
-		err = errors.New("otr: corrupt SMP message")
-		return
-	}
-
-	mpis := make([]*big.Int, numMPIs)
-	for i := range mpis {
-		var ok bool
-		mpis[i], data, ok = getMPI(data)
-		if !ok {
-			err = errors.New("otr: corrupt SMP message")
-			return
-		}
-	}
-
-	switch in.typ {
-	case tlvTypeSMP1, tlvTypeSMP1WithQuestion:
-		if c.smp.state != smpState1 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if c.smp.secret == nil {
-			err = smpSecretMissingError
-			return
-		}
-		if err = c.processSMP1(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState3
-		out = c.generateSMP2()
-	case tlvTypeSMP2:
-		if c.smp.state != smpState2 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP2(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState4
-	case tlvTypeSMP3:
-		if c.smp.state != smpState3 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if out, err = c.processSMP3(mpis); err != nil {
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	case tlvTypeSMP4:
-		if c.smp.state != smpState4 {
-			c.resetSMP()
-			out = c.generateSMPAbort()
-			return
-		}
-		if err = c.processSMP4(mpis); err != nil {
-			out = c.generateSMPAbort()
-			return
-		}
-		c.smp.state = smpState1
-		c.smp.secret = nil
-		complete = true
-	default:
-		panic("unknown SMP message")
-	}
-
-	return
-}
-
-func (c *Conversation) calcSMPSecret(mutualSecret []byte, weStarted bool) {
-	h := sha256.New()
-	h.Write([]byte{smpVersion})
-	if weStarted {
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-		h.Write(c.TheirPublicKey.Fingerprint())
-	} else {
-		h.Write(c.TheirPublicKey.Fingerprint())
-		h.Write(c.PrivateKey.PublicKey.Fingerprint())
-	}
-	h.Write(c.SSID[:])
-	h.Write(mutualSecret)
-	c.smp.secret = new(big.Int).SetBytes(h.Sum(nil))
-}
-
-func (c *Conversation) generateSMP1(question string) tlv {
-	var randBuf [16]byte
-	c.smp.a2 = c.randMPI(randBuf[:])
-	c.smp.a3 = c.randMPI(randBuf[:])
-	g2a := new(big.Int).Exp(g, c.smp.a2, p)
-	g3a := new(big.Int).Exp(g, c.smp.a3, p)
-	h := sha256.New()
-
-	r2 := c.randMPI(randBuf[:])
-	r := new(big.Int).Exp(g, r2, p)
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	d2 := new(big.Int).Mul(c.smp.a2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r3 := c.randMPI(randBuf[:])
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 2, r))
-	d3 := new(big.Int).Mul(c.smp.a3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	var ret tlv
-	if len(question) > 0 {
-		ret.typ = tlvTypeSMP1WithQuestion
-		ret.data = append(ret.data, question...)
-		ret.data = append(ret.data, 0)
-	} else {
-		ret.typ = tlvTypeSMP1
-	}
-	ret.data = appendU32(ret.data, 6)
-	ret.data = appendMPIs(ret.data, g2a, c2, d2, g3a, c3, d3)
-	return ret
-}
-
-func (c *Conversation) processSMP1(mpis []*big.Int) error {
-	if len(mpis) != 6 {
-		return errors.New("otr: incorrect number of arguments in SMP1 message")
-	}
-	g2a := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3a := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2a, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t := new(big.Int).SetBytes(hashMPIs(h, 1, r))
-	if c2.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c2 incorrect in SMP1 message")
-	}
-	r.Exp(g, d3, p)
-	s.Exp(g3a, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	t.SetBytes(hashMPIs(h, 2, r))
-	if c3.Cmp(t) != 0 {
-		return errors.New("otr: ZKP c3 incorrect in SMP1 message")
-	}
-
-	c.smp.g2a = g2a
-	c.smp.g3a = g3a
-	return nil
-}
-
-func (c *Conversation) generateSMP2() tlv {
-	var randBuf [16]byte
-	b2 := c.randMPI(randBuf[:])
-	c.smp.b3 = c.randMPI(randBuf[:])
-	r2 := c.randMPI(randBuf[:])
-	r3 := c.randMPI(randBuf[:])
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-
-	g2b := new(big.Int).Exp(g, b2, p)
-	g3b := new(big.Int).Exp(g, c.smp.b3, p)
-
-	r := new(big.Int).Exp(g, r2, p)
-	h := sha256.New()
-	c2 := new(big.Int).SetBytes(hashMPIs(h, 3, r))
-	d2 := new(big.Int).Mul(b2, c2)
-	d2.Sub(r2, d2)
-	d2.Mod(d2, q)
-	if d2.Sign() < 0 {
-		d2.Add(d2, q)
-	}
-
-	r.Exp(g, r3, p)
-	c3 := new(big.Int).SetBytes(hashMPIs(h, 4, r))
-	d3 := new(big.Int).Mul(c.smp.b3, c3)
-	d3.Sub(r3, d3)
-	d3.Mod(d3, q)
-	if d3.Sign() < 0 {
-		d3.Add(d3, q)
-	}
-
-	c.smp.g2 = new(big.Int).Exp(c.smp.g2a, b2, p)
-	c.smp.g3 = new(big.Int).Exp(c.smp.g3a, c.smp.b3, p)
-	c.smp.pb = new(big.Int).Exp(c.smp.g3, r4, p)
-	c.smp.qb = new(big.Int).Exp(g, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	c.smp.qb.Mul(c.smp.qb, r)
-	c.smp.qb.Mod(c.smp.qb, p)
-
-	s := new(big.Int)
-	s.Exp(c.smp.g2, r6, p)
-	r.Exp(g, r5, p)
-	s.Mul(r, s)
-	s.Mod(s, p)
-	r.Exp(c.smp.g3, r5, p)
-	cp := new(big.Int).SetBytes(hashMPIs(h, 5, r, s))
-
-	// D5 = r5 - r4 cP mod q and D6 = r6 - y cP mod q
-
-	s.Mul(r4, cp)
-	r.Sub(r5, s)
-	d5 := new(big.Int).Mod(r, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	s.Mul(c.smp.secret, cp)
-	r.Sub(r6, s)
-	d6 := new(big.Int).Mod(r, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	var ret tlv
-	ret.typ = tlvTypeSMP2
-	ret.data = appendU32(ret.data, 11)
-	ret.data = appendMPIs(ret.data, g2b, c2, d2, g3b, c3, d3, c.smp.pb, c.smp.qb, cp, d5, d6)
-	return ret
-}
-
-func (c *Conversation) processSMP2(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 11 {
-		err = errors.New("otr: incorrect number of arguments in SMP2 message")
-		return
-	}
-	g2b := mpis[0]
-	c2 := mpis[1]
-	d2 := mpis[2]
-	g3b := mpis[3]
-	c3 := mpis[4]
-	d3 := mpis[5]
-	pb := mpis[6]
-	qb := mpis[7]
-	cp := mpis[8]
-	d5 := mpis[9]
-	d6 := mpis[10]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d2, p)
-	s := new(big.Int).Exp(g2b, c2, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 3, r))
-	if c2.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c2 failed in SMP2 message")
-		return
-	}
-
-	r.Exp(g, d3, p)
-	s.Exp(g3b, c3, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-	s.SetBytes(hashMPIs(h, 4, r))
-	if c3.Cmp(s) != 0 {
-		err = errors.New("otr: ZKP c3 failed in SMP2 message")
-		return
-	}
-
-	c.smp.g2 = new(big.Int).Exp(g2b, c.smp.a2, p)
-	c.smp.g3 = new(big.Int).Exp(g3b, c.smp.a3, p)
-
-	r.Exp(g, d5, p)
-	s.Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qb, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pb, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 5, s, r))
-	if cp.Cmp(t) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP2 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r4 := c.randMPI(randBuf[:])
-	r5 := c.randMPI(randBuf[:])
-	r6 := c.randMPI(randBuf[:])
-	r7 := c.randMPI(randBuf[:])
-
-	pa := new(big.Int).Exp(c.smp.g3, r4, p)
-	r.Exp(c.smp.g2, c.smp.secret, p)
-	qa := new(big.Int).Exp(g, r4, p)
-	qa.Mul(qa, r)
-	qa.Mod(qa, p)
-
-	r.Exp(g, r5, p)
-	s.Exp(c.smp.g2, r6, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, r5, p)
-	cp.SetBytes(hashMPIs(h, 6, s, r))
-
-	r.Mul(r4, cp)
-	d5 = new(big.Int).Sub(r5, r)
-	d5.Mod(d5, q)
-	if d5.Sign() < 0 {
-		d5.Add(d5, q)
-	}
-
-	r.Mul(c.smp.secret, cp)
-	d6 = new(big.Int).Sub(r6, r)
-	d6.Mod(d6, q)
-	if d6.Sign() < 0 {
-		d6.Add(d6, q)
-	}
-
-	r.ModInverse(qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	ra := new(big.Int).Exp(qaqb, c.smp.a3, p)
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr := new(big.Int).SetBytes(hashMPIs(h, 7, s, r))
-
-	r.Mul(c.smp.a3, cr)
-	d7 := new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	c.smp.g3b = g3b
-	c.smp.qaqb = qaqb
-
-	r.ModInverse(pb, p)
-	c.smp.papb = new(big.Int).Mul(pa, r)
-	c.smp.papb.Mod(c.smp.papb, p)
-	c.smp.ra = ra
-
-	out.typ = tlvTypeSMP3
-	out.data = appendU32(out.data, 8)
-	out.data = appendMPIs(out.data, pa, qa, cp, d5, d6, ra, cr, d7)
-	return
-}
-
-func (c *Conversation) processSMP3(mpis []*big.Int) (out tlv, err error) {
-	if len(mpis) != 8 {
-		err = errors.New("otr: incorrect number of arguments in SMP3 message")
-		return
-	}
-	pa := mpis[0]
-	qa := mpis[1]
-	cp := mpis[2]
-	d5 := mpis[3]
-	d6 := mpis[4]
-	ra := mpis[5]
-	cr := mpis[6]
-	d7 := mpis[7]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(g, d5, p)
-	s := new(big.Int).Exp(c.smp.g2, d6, p)
-	r.Mul(r, s)
-	s.Exp(qa, cp, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(c.smp.g3, d5, p)
-	t := new(big.Int).Exp(pa, cp, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 6, s, r))
-	if t.Cmp(cp) != 0 {
-		err = errors.New("otr: ZKP cP failed in SMP3 message")
-		return
-	}
-
-	r.ModInverse(c.smp.qb, p)
-	qaqb := new(big.Int).Mul(qa, r)
-	qaqb.Mod(qaqb, p)
-
-	r.Exp(qaqb, d7, p)
-	s.Exp(ra, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t.Exp(c.smp.g3a, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 7, s, r))
-	if t.Cmp(cr) != 0 {
-		err = errors.New("otr: ZKP cR failed in SMP3 message")
-		return
-	}
-
-	var randBuf [16]byte
-	r7 := c.randMPI(randBuf[:])
-	rb := new(big.Int).Exp(qaqb, c.smp.b3, p)
-
-	r.Exp(qaqb, r7, p)
-	s.Exp(g, r7, p)
-	cr = new(big.Int).SetBytes(hashMPIs(h, 8, s, r))
-
-	r.Mul(c.smp.b3, cr)
-	d7 = new(big.Int).Sub(r7, r)
-	d7.Mod(d7, q)
-	if d7.Sign() < 0 {
-		d7.Add(d7, q)
-	}
-
-	out.typ = tlvTypeSMP4
-	out.data = appendU32(out.data, 3)
-	out.data = appendMPIs(out.data, rb, cr, d7)
-
-	r.ModInverse(c.smp.pb, p)
-	r.Mul(pa, r)
-	r.Mod(r, p)
-	s.Exp(ra, c.smp.b3, p)
-	if r.Cmp(s) != 0 {
-		err = smpFailureError
-	}
-
-	return
-}
-
-func (c *Conversation) processSMP4(mpis []*big.Int) error {
-	if len(mpis) != 3 {
-		return errors.New("otr: incorrect number of arguments in SMP4 message")
-	}
-	rb := mpis[0]
-	cr := mpis[1]
-	d7 := mpis[2]
-	h := sha256.New()
-
-	r := new(big.Int).Exp(c.smp.qaqb, d7, p)
-	s := new(big.Int).Exp(rb, cr, p)
-	r.Mul(r, s)
-	r.Mod(r, p)
-
-	s.Exp(g, d7, p)
-	t := new(big.Int).Exp(c.smp.g3b, cr, p)
-	s.Mul(s, t)
-	s.Mod(s, p)
-	t.SetBytes(hashMPIs(h, 8, s, r))
-	if t.Cmp(cr) != 0 {
-		return errors.New("otr: ZKP cR failed in SMP4 message")
-	}
-
-	r.Exp(rb, c.smp.a3, p)
-	if r.Cmp(c.smp.papb) != 0 {
-		return smpFailureError
-	}
-
-	return nil
-}
-
-func (c *Conversation) generateSMPAbort() tlv {
-	return tlv{typ: tlvTypeSMPAbort}
-}
-
-func hashMPIs(h hash.Hash, magic byte, mpis ...*big.Int) []byte {
-	if h != nil {
-		h.Reset()
-	} else {
-		h = sha256.New()
-	}
-
-	h.Write([]byte{magic})
-	for _, mpi := range mpis {
-		h.Write(appendMPI(nil, mpi))
-	}
-	return h.Sum(nil)
-}
diff --git a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
deleted file mode 100644
index 593f653..0000000
--- a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package pbkdf2 implements the key derivation function PBKDF2 as defined in RFC
-2898 / PKCS #5 v2.0.
-
-A key derivation function is useful when encrypting data based on a password
-or any other not-fully-random data. It uses a pseudorandom function to derive
-a secure encryption key based on the password.
-
-While v2.0 of the standard defines only one pseudorandom function to use,
-HMAC-SHA1, the drafted v2.1 specification allows use of all five FIPS Approved
-Hash Functions SHA-1, SHA-224, SHA-256, SHA-384 and SHA-512 for HMAC. To
-choose, you can pass the `New` functions from the different SHA packages to
-pbkdf2.Key.
-*/
-package pbkdf2 // import "golang.org/x/crypto/pbkdf2"
-
-import (
-	"crypto/hmac"
-	"hash"
-)
-
-// Key derives a key from the password, salt and iteration count, returning a
-// []byte of length keylen that can be used as cryptographic key. The key is
-// derived based on the method described as PBKDF2 with the HMAC variant using
-// the supplied hash function.
-//
-// For example, to use a HMAC-SHA-1 based PBKDF2 key derivation function, you
-// can get a derived key for e.g. AES-256 (which needs a 32-byte key) by
-// doing:
-//
-// 	dk := pbkdf2.Key([]byte("some password"), salt, 4096, 32, sha1.New)
-//
-// Remember to get a good random salt. At least 8 bytes is recommended by the
-// RFC.
-//
-// Using a higher iteration count will increase the cost of an exhaustive
-// search but will also make derivation proportionally slower.
-func Key(password, salt []byte, iter, keyLen int, h func() hash.Hash) []byte {
-	prf := hmac.New(h, password)
-	hashLen := prf.Size()
-	numBlocks := (keyLen + hashLen - 1) / hashLen
-
-	var buf [4]byte
-	dk := make([]byte, 0, numBlocks*hashLen)
-	U := make([]byte, hashLen)
-	for block := 1; block <= numBlocks; block++ {
-		// N.B.: || means concatenation, ^ means XOR
-		// for each block T_i = U_1 ^ U_2 ^ ... ^ U_iter
-		// U_1 = PRF(password, salt || uint(i))
-		prf.Reset()
-		prf.Write(salt)
-		buf[0] = byte(block >> 24)
-		buf[1] = byte(block >> 16)
-		buf[2] = byte(block >> 8)
-		buf[3] = byte(block)
-		prf.Write(buf[:4])
-		dk = prf.Sum(dk)
-		T := dk[len(dk)-hashLen:]
-		copy(U, T)
-
-		// U_n = PRF(password, U_(n-1))
-		for n := 2; n <= iter; n++ {
-			prf.Reset()
-			prf.Write(U)
-			U = U[:0]
-			U = prf.Sum(U)
-			for x := range U {
-				T[x] ^= U[x]
-			}
-		}
-	}
-	return dk[:keyLen]
-}
diff --git a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2_test.go b/vendor/golang.org/x/crypto/pbkdf2/pbkdf2_test.go
deleted file mode 100644
index f83cb69..0000000
--- a/vendor/golang.org/x/crypto/pbkdf2/pbkdf2_test.go
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pbkdf2
-
-import (
-	"bytes"
-	"crypto/sha1"
-	"crypto/sha256"
-	"hash"
-	"testing"
-)
-
-type testVector struct {
-	password string
-	salt     string
-	iter     int
-	output   []byte
-}
-
-// Test vectors from RFC 6070, http://tools.ietf.org/html/rfc6070
-var sha1TestVectors = []testVector{
-	{
-		"password",
-		"salt",
-		1,
-		[]byte{
-			0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71,
-			0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06,
-			0x2f, 0xe0, 0x37, 0xa6,
-		},
-	},
-	{
-		"password",
-		"salt",
-		2,
-		[]byte{
-			0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c,
-			0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0,
-			0xd8, 0xde, 0x89, 0x57,
-		},
-	},
-	{
-		"password",
-		"salt",
-		4096,
-		[]byte{
-			0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a,
-			0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0,
-			0x65, 0xa4, 0x29, 0xc1,
-		},
-	},
-	// // This one takes too long
-	// {
-	// 	"password",
-	// 	"salt",
-	// 	16777216,
-	// 	[]byte{
-	// 		0xee, 0xfe, 0x3d, 0x61, 0xcd, 0x4d, 0xa4, 0xe4,
-	// 		0xe9, 0x94, 0x5b, 0x3d, 0x6b, 0xa2, 0x15, 0x8c,
-	// 		0x26, 0x34, 0xe9, 0x84,
-	// 	},
-	// },
-	{
-		"passwordPASSWORDpassword",
-		"saltSALTsaltSALTsaltSALTsaltSALTsalt",
-		4096,
-		[]byte{
-			0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b,
-			0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a,
-			0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70,
-			0x38,
-		},
-	},
-	{
-		"pass\000word",
-		"sa\000lt",
-		4096,
-		[]byte{
-			0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d,
-			0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3,
-		},
-	},
-}
-
-// Test vectors from
-// http://stackoverflow.com/questions/5130513/pbkdf2-hmac-sha2-test-vectors
-var sha256TestVectors = []testVector{
-	{
-		"password",
-		"salt",
-		1,
-		[]byte{
-			0x12, 0x0f, 0xb6, 0xcf, 0xfc, 0xf8, 0xb3, 0x2c,
-			0x43, 0xe7, 0x22, 0x52, 0x56, 0xc4, 0xf8, 0x37,
-			0xa8, 0x65, 0x48, 0xc9,
-		},
-	},
-	{
-		"password",
-		"salt",
-		2,
-		[]byte{
-			0xae, 0x4d, 0x0c, 0x95, 0xaf, 0x6b, 0x46, 0xd3,
-			0x2d, 0x0a, 0xdf, 0xf9, 0x28, 0xf0, 0x6d, 0xd0,
-			0x2a, 0x30, 0x3f, 0x8e,
-		},
-	},
-	{
-		"password",
-		"salt",
-		4096,
-		[]byte{
-			0xc5, 0xe4, 0x78, 0xd5, 0x92, 0x88, 0xc8, 0x41,
-			0xaa, 0x53, 0x0d, 0xb6, 0x84, 0x5c, 0x4c, 0x8d,
-			0x96, 0x28, 0x93, 0xa0,
-		},
-	},
-	{
-		"passwordPASSWORDpassword",
-		"saltSALTsaltSALTsaltSALTsaltSALTsalt",
-		4096,
-		[]byte{
-			0x34, 0x8c, 0x89, 0xdb, 0xcb, 0xd3, 0x2b, 0x2f,
-			0x32, 0xd8, 0x14, 0xb8, 0x11, 0x6e, 0x84, 0xcf,
-			0x2b, 0x17, 0x34, 0x7e, 0xbc, 0x18, 0x00, 0x18,
-			0x1c,
-		},
-	},
-	{
-		"pass\000word",
-		"sa\000lt",
-		4096,
-		[]byte{
-			0x89, 0xb6, 0x9d, 0x05, 0x16, 0xf8, 0x29, 0x89,
-			0x3c, 0x69, 0x62, 0x26, 0x65, 0x0a, 0x86, 0x87,
-		},
-	},
-}
-
-func testHash(t *testing.T, h func() hash.Hash, hashName string, vectors []testVector) {
-	for i, v := range vectors {
-		o := Key([]byte(v.password), []byte(v.salt), v.iter, len(v.output), h)
-		if !bytes.Equal(o, v.output) {
-			t.Errorf("%s %d: expected %x, got %x", hashName, i, v.output, o)
-		}
-	}
-}
-
-func TestWithHMACSHA1(t *testing.T) {
-	testHash(t, sha1.New, "SHA1", sha1TestVectors)
-}
-
-func TestWithHMACSHA256(t *testing.T) {
-	testHash(t, sha256.New, "SHA256", sha256TestVectors)
-}
-
-var sink uint8
-
-func benchmark(b *testing.B, h func() hash.Hash) {
-	password := make([]byte, h().Size())
-	salt := make([]byte, 8)
-	for i := 0; i < b.N; i++ {
-		password = Key(password, salt, 4096, len(password), h)
-	}
-	sink += password[0]
-}
-
-func BenchmarkHMACSHA1(b *testing.B) {
-	benchmark(b, sha1.New)
-}
-
-func BenchmarkHMACSHA256(b *testing.B) {
-	benchmark(b, sha256.New)
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/bmp-string.go b/vendor/golang.org/x/crypto/pkcs12/bmp-string.go
deleted file mode 100644
index 233b8b6..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/bmp-string.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"errors"
-	"unicode/utf16"
-)
-
-// bmpString returns s encoded in UCS-2 with a zero terminator.
-func bmpString(s string) ([]byte, error) {
-	// References:
-	// https://tools.ietf.org/html/rfc7292#appendix-B.1
-	// https://en.wikipedia.org/wiki/Plane_(Unicode)#Basic_Multilingual_Plane
-	//  - non-BMP characters are encoded in UTF 16 by using a surrogate pair of 16-bit codes
-	//	  EncodeRune returns 0xfffd if the rune does not need special encoding
-	//  - the above RFC provides the info that BMPStrings are NULL terminated.
-
-	ret := make([]byte, 0, 2*len(s)+2)
-
-	for _, r := range s {
-		if t, _ := utf16.EncodeRune(r); t != 0xfffd {
-			return nil, errors.New("pkcs12: string contains characters that cannot be encoded in UCS-2")
-		}
-		ret = append(ret, byte(r/256), byte(r%256))
-	}
-
-	return append(ret, 0, 0), nil
-}
-
-func decodeBMPString(bmpString []byte) (string, error) {
-	if len(bmpString)%2 != 0 {
-		return "", errors.New("pkcs12: odd-length BMP string")
-	}
-
-	// strip terminator if present
-	if l := len(bmpString); l >= 2 && bmpString[l-1] == 0 && bmpString[l-2] == 0 {
-		bmpString = bmpString[:l-2]
-	}
-
-	s := make([]uint16, 0, len(bmpString)/2)
-	for len(bmpString) > 0 {
-		s = append(s, uint16(bmpString[0])<<8+uint16(bmpString[1]))
-		bmpString = bmpString[2:]
-	}
-
-	return string(utf16.Decode(s)), nil
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/bmp-string_test.go b/vendor/golang.org/x/crypto/pkcs12/bmp-string_test.go
deleted file mode 100644
index 7fca55f..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/bmp-string_test.go
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-var bmpStringTests = []struct {
-	in          string
-	expectedHex string
-	shouldFail  bool
-}{
-	{"", "0000", false},
-	// Example from https://tools.ietf.org/html/rfc7292#appendix-B.
-	{"Beavis", "0042006500610076006900730000", false},
-	// Some characters from the "Letterlike Symbols Unicode block".
-	{"\u2115 - Double-struck N", "21150020002d00200044006f00750062006c0065002d00730074007200750063006b0020004e0000", false},
-	// any character outside the BMP should trigger an error.
-	{"\U0001f000 East wind (Mahjong)", "", true},
-}
-
-func TestBMPString(t *testing.T) {
-	for i, test := range bmpStringTests {
-		expected, err := hex.DecodeString(test.expectedHex)
-		if err != nil {
-			t.Fatalf("#%d: failed to decode expectation", i)
-		}
-
-		out, err := bmpString(test.in)
-		if err == nil && test.shouldFail {
-			t.Errorf("#%d: expected to fail, but produced %x", i, out)
-			continue
-		}
-
-		if err != nil && !test.shouldFail {
-			t.Errorf("#%d: failed unexpectedly: %s", i, err)
-			continue
-		}
-
-		if !test.shouldFail {
-			if !bytes.Equal(out, expected) {
-				t.Errorf("#%d: expected %s, got %x", i, test.expectedHex, out)
-				continue
-			}
-
-			roundTrip, err := decodeBMPString(out)
-			if err != nil {
-				t.Errorf("#%d: decoding output gave an error: %s", i, err)
-				continue
-			}
-
-			if roundTrip != test.in {
-				t.Errorf("#%d: decoding output resulted in %q, but it should have been %q", i, roundTrip, test.in)
-				continue
-			}
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/crypto.go b/vendor/golang.org/x/crypto/pkcs12/crypto.go
deleted file mode 100644
index 484ca51..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/crypto.go
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"bytes"
-	"crypto/cipher"
-	"crypto/des"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"errors"
-
-	"golang.org/x/crypto/pkcs12/internal/rc2"
-)
-
-var (
-	oidPBEWithSHAAnd3KeyTripleDESCBC = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 3})
-	oidPBEWithSHAAnd40BitRC2CBC      = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 6})
-)
-
-// pbeCipher is an abstraction of a PKCS#12 cipher.
-type pbeCipher interface {
-	// create returns a cipher.Block given a key.
-	create(key []byte) (cipher.Block, error)
-	// deriveKey returns a key derived from the given password and salt.
-	deriveKey(salt, password []byte, iterations int) []byte
-	// deriveKey returns an IV derived from the given password and salt.
-	deriveIV(salt, password []byte, iterations int) []byte
-}
-
-type shaWithTripleDESCBC struct{}
-
-func (shaWithTripleDESCBC) create(key []byte) (cipher.Block, error) {
-	return des.NewTripleDESCipher(key)
-}
-
-func (shaWithTripleDESCBC) deriveKey(salt, password []byte, iterations int) []byte {
-	return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 24)
-}
-
-func (shaWithTripleDESCBC) deriveIV(salt, password []byte, iterations int) []byte {
-	return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8)
-}
-
-type shaWith40BitRC2CBC struct{}
-
-func (shaWith40BitRC2CBC) create(key []byte) (cipher.Block, error) {
-	return rc2.New(key, len(key)*8)
-}
-
-func (shaWith40BitRC2CBC) deriveKey(salt, password []byte, iterations int) []byte {
-	return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 1, 5)
-}
-
-func (shaWith40BitRC2CBC) deriveIV(salt, password []byte, iterations int) []byte {
-	return pbkdf(sha1Sum, 20, 64, salt, password, iterations, 2, 8)
-}
-
-type pbeParams struct {
-	Salt       []byte
-	Iterations int
-}
-
-func pbDecrypterFor(algorithm pkix.AlgorithmIdentifier, password []byte) (cipher.BlockMode, int, error) {
-	var cipherType pbeCipher
-
-	switch {
-	case algorithm.Algorithm.Equal(oidPBEWithSHAAnd3KeyTripleDESCBC):
-		cipherType = shaWithTripleDESCBC{}
-	case algorithm.Algorithm.Equal(oidPBEWithSHAAnd40BitRC2CBC):
-		cipherType = shaWith40BitRC2CBC{}
-	default:
-		return nil, 0, NotImplementedError("algorithm " + algorithm.Algorithm.String() + " is not supported")
-	}
-
-	var params pbeParams
-	if err := unmarshal(algorithm.Parameters.FullBytes, &params); err != nil {
-		return nil, 0, err
-	}
-
-	key := cipherType.deriveKey(params.Salt, password, params.Iterations)
-	iv := cipherType.deriveIV(params.Salt, password, params.Iterations)
-
-	block, err := cipherType.create(key)
-	if err != nil {
-		return nil, 0, err
-	}
-
-	return cipher.NewCBCDecrypter(block, iv), block.BlockSize(), nil
-}
-
-func pbDecrypt(info decryptable, password []byte) (decrypted []byte, err error) {
-	cbc, blockSize, err := pbDecrypterFor(info.Algorithm(), password)
-	if err != nil {
-		return nil, err
-	}
-
-	encrypted := info.Data()
-	if len(encrypted) == 0 {
-		return nil, errors.New("pkcs12: empty encrypted data")
-	}
-	if len(encrypted)%blockSize != 0 {
-		return nil, errors.New("pkcs12: input is not a multiple of the block size")
-	}
-	decrypted = make([]byte, len(encrypted))
-	cbc.CryptBlocks(decrypted, encrypted)
-
-	psLen := int(decrypted[len(decrypted)-1])
-	if psLen == 0 || psLen > blockSize {
-		return nil, ErrDecryption
-	}
-
-	if len(decrypted) < psLen {
-		return nil, ErrDecryption
-	}
-	ps := decrypted[len(decrypted)-psLen:]
-	decrypted = decrypted[:len(decrypted)-psLen]
-	if bytes.Compare(ps, bytes.Repeat([]byte{byte(psLen)}, psLen)) != 0 {
-		return nil, ErrDecryption
-	}
-
-	return
-}
-
-// decryptable abstracts an object that contains ciphertext.
-type decryptable interface {
-	Algorithm() pkix.AlgorithmIdentifier
-	Data() []byte
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/crypto_test.go b/vendor/golang.org/x/crypto/pkcs12/crypto_test.go
deleted file mode 100644
index eb4dae8..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/crypto_test.go
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"bytes"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"testing"
-)
-
-var sha1WithTripleDES = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 1, 3})
-
-func TestPbDecrypterFor(t *testing.T) {
-	params, _ := asn1.Marshal(pbeParams{
-		Salt:       []byte{1, 2, 3, 4, 5, 6, 7, 8},
-		Iterations: 2048,
-	})
-	alg := pkix.AlgorithmIdentifier{
-		Algorithm: asn1.ObjectIdentifier([]int{1, 2, 3}),
-		Parameters: asn1.RawValue{
-			FullBytes: params,
-		},
-	}
-
-	pass, _ := bmpString("Sesame open")
-
-	_, _, err := pbDecrypterFor(alg, pass)
-	if _, ok := err.(NotImplementedError); !ok {
-		t.Errorf("expected not implemented error, got: %T %s", err, err)
-	}
-
-	alg.Algorithm = sha1WithTripleDES
-	cbc, blockSize, err := pbDecrypterFor(alg, pass)
-	if err != nil {
-		t.Errorf("unexpected error from pbDecrypterFor %v", err)
-	}
-	if blockSize != 8 {
-		t.Errorf("unexpected block size %d, wanted 8", blockSize)
-	}
-
-	plaintext := []byte{1, 2, 3, 4, 5, 6, 7, 8}
-	expectedCiphertext := []byte{185, 73, 135, 249, 137, 1, 122, 247}
-	ciphertext := make([]byte, len(plaintext))
-	cbc.CryptBlocks(ciphertext, plaintext)
-
-	if bytes.Compare(ciphertext, expectedCiphertext) != 0 {
-		t.Errorf("bad ciphertext, got %x but wanted %x", ciphertext, expectedCiphertext)
-	}
-}
-
-var pbDecryptTests = []struct {
-	in            []byte
-	expected      []byte
-	expectedError error
-}{
-	{
-		[]byte("\x33\x73\xf3\x9f\xda\x49\xae\xfc\xa0\x9a\xdf\x5a\x58\xa0\xea\x46"), // 7 padding bytes
-		[]byte("A secret!"),
-		nil,
-	},
-	{
-		[]byte("\x33\x73\xf3\x9f\xda\x49\xae\xfc\x96\x24\x2f\x71\x7e\x32\x3f\xe7"), // 8 padding bytes
-		[]byte("A secret"),
-		nil,
-	},
-	{
-		[]byte("\x35\x0c\xc0\x8d\xab\xa9\x5d\x30\x7f\x9a\xec\x6a\xd8\x9b\x9c\xd9"), // 9 padding bytes, incorrect
-		nil,
-		ErrDecryption,
-	},
-	{
-		[]byte("\xb2\xf9\x6e\x06\x60\xae\x20\xcf\x08\xa0\x7b\xd9\x6b\x20\xef\x41"), // incorrect padding bytes: [ ... 0x04 0x02 ]
-		nil,
-		ErrDecryption,
-	},
-}
-
-func TestPbDecrypt(t *testing.T) {
-	for i, test := range pbDecryptTests {
-		decryptable := testDecryptable{
-			data: test.in,
-			algorithm: pkix.AlgorithmIdentifier{
-				Algorithm: sha1WithTripleDES,
-				Parameters: pbeParams{
-					Salt:       []byte("\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8"),
-					Iterations: 4096,
-				}.RawASN1(),
-			},
-		}
-		password, _ := bmpString("sesame")
-
-		plaintext, err := pbDecrypt(decryptable, password)
-		if err != test.expectedError {
-			t.Errorf("#%d: got error %q, but wanted %q", i, err, test.expectedError)
-			continue
-		}
-
-		if !bytes.Equal(plaintext, test.expected) {
-			t.Errorf("#%d: got %x, but wanted %x", i, plaintext, test.expected)
-		}
-	}
-}
-
-type testDecryptable struct {
-	data      []byte
-	algorithm pkix.AlgorithmIdentifier
-}
-
-func (d testDecryptable) Algorithm() pkix.AlgorithmIdentifier { return d.algorithm }
-func (d testDecryptable) Data() []byte                        { return d.data }
-
-func (params pbeParams) RawASN1() (raw asn1.RawValue) {
-	asn1Bytes, err := asn1.Marshal(params)
-	if err != nil {
-		panic(err)
-	}
-	_, err = asn1.Unmarshal(asn1Bytes, &raw)
-	if err != nil {
-		panic(err)
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/errors.go b/vendor/golang.org/x/crypto/pkcs12/errors.go
deleted file mode 100644
index 7377ce6..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/errors.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import "errors"
-
-var (
-	// ErrDecryption represents a failure to decrypt the input.
-	ErrDecryption = errors.New("pkcs12: decryption error, incorrect padding")
-
-	// ErrIncorrectPassword is returned when an incorrect password is detected.
-	// Usually, P12/PFX data is signed to be able to verify the password.
-	ErrIncorrectPassword = errors.New("pkcs12: decryption password incorrect")
-)
-
-// NotImplementedError indicates that the input is not currently supported.
-type NotImplementedError string
-
-func (e NotImplementedError) Error() string {
-	return "pkcs12: " + string(e)
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/bench_test.go b/vendor/golang.org/x/crypto/pkcs12/internal/rc2/bench_test.go
deleted file mode 100644
index 3347f33..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/bench_test.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package rc2
-
-import (
-	"testing"
-)
-
-func BenchmarkEncrypt(b *testing.B) {
-	r, _ := New([]byte{0, 0, 0, 0, 0, 0, 0, 0}, 64)
-	b.ResetTimer()
-	var src [8]byte
-	for i := 0; i < b.N; i++ {
-		r.Encrypt(src[:], src[:])
-	}
-}
-
-func BenchmarkDecrypt(b *testing.B) {
-	r, _ := New([]byte{0, 0, 0, 0, 0, 0, 0, 0}, 64)
-	b.ResetTimer()
-	var src [8]byte
-	for i := 0; i < b.N; i++ {
-		r.Decrypt(src[:], src[:])
-	}
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go b/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go
deleted file mode 100644
index 7499e3f..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2.go
+++ /dev/null
@@ -1,271 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package rc2 implements the RC2 cipher
-/*
-https://www.ietf.org/rfc/rfc2268.txt
-http://people.csail.mit.edu/rivest/pubs/KRRR98.pdf
-
-This code is licensed under the MIT license.
-*/
-package rc2
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-)
-
-// The rc2 block size in bytes
-const BlockSize = 8
-
-type rc2Cipher struct {
-	k [64]uint16
-}
-
-// New returns a new rc2 cipher with the given key and effective key length t1
-func New(key []byte, t1 int) (cipher.Block, error) {
-	// TODO(dgryski): error checking for key length
-	return &rc2Cipher{
-		k: expandKey(key, t1),
-	}, nil
-}
-
-func (*rc2Cipher) BlockSize() int { return BlockSize }
-
-var piTable = [256]byte{
-	0xd9, 0x78, 0xf9, 0xc4, 0x19, 0xdd, 0xb5, 0xed, 0x28, 0xe9, 0xfd, 0x79, 0x4a, 0xa0, 0xd8, 0x9d,
-	0xc6, 0x7e, 0x37, 0x83, 0x2b, 0x76, 0x53, 0x8e, 0x62, 0x4c, 0x64, 0x88, 0x44, 0x8b, 0xfb, 0xa2,
-	0x17, 0x9a, 0x59, 0xf5, 0x87, 0xb3, 0x4f, 0x13, 0x61, 0x45, 0x6d, 0x8d, 0x09, 0x81, 0x7d, 0x32,
-	0xbd, 0x8f, 0x40, 0xeb, 0x86, 0xb7, 0x7b, 0x0b, 0xf0, 0x95, 0x21, 0x22, 0x5c, 0x6b, 0x4e, 0x82,
-	0x54, 0xd6, 0x65, 0x93, 0xce, 0x60, 0xb2, 0x1c, 0x73, 0x56, 0xc0, 0x14, 0xa7, 0x8c, 0xf1, 0xdc,
-	0x12, 0x75, 0xca, 0x1f, 0x3b, 0xbe, 0xe4, 0xd1, 0x42, 0x3d, 0xd4, 0x30, 0xa3, 0x3c, 0xb6, 0x26,
-	0x6f, 0xbf, 0x0e, 0xda, 0x46, 0x69, 0x07, 0x57, 0x27, 0xf2, 0x1d, 0x9b, 0xbc, 0x94, 0x43, 0x03,
-	0xf8, 0x11, 0xc7, 0xf6, 0x90, 0xef, 0x3e, 0xe7, 0x06, 0xc3, 0xd5, 0x2f, 0xc8, 0x66, 0x1e, 0xd7,
-	0x08, 0xe8, 0xea, 0xde, 0x80, 0x52, 0xee, 0xf7, 0x84, 0xaa, 0x72, 0xac, 0x35, 0x4d, 0x6a, 0x2a,
-	0x96, 0x1a, 0xd2, 0x71, 0x5a, 0x15, 0x49, 0x74, 0x4b, 0x9f, 0xd0, 0x5e, 0x04, 0x18, 0xa4, 0xec,
-	0xc2, 0xe0, 0x41, 0x6e, 0x0f, 0x51, 0xcb, 0xcc, 0x24, 0x91, 0xaf, 0x50, 0xa1, 0xf4, 0x70, 0x39,
-	0x99, 0x7c, 0x3a, 0x85, 0x23, 0xb8, 0xb4, 0x7a, 0xfc, 0x02, 0x36, 0x5b, 0x25, 0x55, 0x97, 0x31,
-	0x2d, 0x5d, 0xfa, 0x98, 0xe3, 0x8a, 0x92, 0xae, 0x05, 0xdf, 0x29, 0x10, 0x67, 0x6c, 0xba, 0xc9,
-	0xd3, 0x00, 0xe6, 0xcf, 0xe1, 0x9e, 0xa8, 0x2c, 0x63, 0x16, 0x01, 0x3f, 0x58, 0xe2, 0x89, 0xa9,
-	0x0d, 0x38, 0x34, 0x1b, 0xab, 0x33, 0xff, 0xb0, 0xbb, 0x48, 0x0c, 0x5f, 0xb9, 0xb1, 0xcd, 0x2e,
-	0xc5, 0xf3, 0xdb, 0x47, 0xe5, 0xa5, 0x9c, 0x77, 0x0a, 0xa6, 0x20, 0x68, 0xfe, 0x7f, 0xc1, 0xad,
-}
-
-func expandKey(key []byte, t1 int) [64]uint16 {
-
-	l := make([]byte, 128)
-	copy(l, key)
-
-	var t = len(key)
-	var t8 = (t1 + 7) / 8
-	var tm = byte(255 % uint(1<<(8+uint(t1)-8*uint(t8))))
-
-	for i := len(key); i < 128; i++ {
-		l[i] = piTable[l[i-1]+l[uint8(i-t)]]
-	}
-
-	l[128-t8] = piTable[l[128-t8]&tm]
-
-	for i := 127 - t8; i >= 0; i-- {
-		l[i] = piTable[l[i+1]^l[i+t8]]
-	}
-
-	var k [64]uint16
-
-	for i := range k {
-		k[i] = uint16(l[2*i]) + uint16(l[2*i+1])*256
-	}
-
-	return k
-}
-
-func rotl16(x uint16, b uint) uint16 {
-	return (x >> (16 - b)) | (x << b)
-}
-
-func (c *rc2Cipher) Encrypt(dst, src []byte) {
-
-	r0 := binary.LittleEndian.Uint16(src[0:])
-	r1 := binary.LittleEndian.Uint16(src[2:])
-	r2 := binary.LittleEndian.Uint16(src[4:])
-	r3 := binary.LittleEndian.Uint16(src[6:])
-
-	var j int
-
-	for j <= 16 {
-		// mix r0
-		r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
-		r0 = rotl16(r0, 1)
-		j++
-
-		// mix r1
-		r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
-		r1 = rotl16(r1, 2)
-		j++
-
-		// mix r2
-		r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
-		r2 = rotl16(r2, 3)
-		j++
-
-		// mix r3
-		r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
-		r3 = rotl16(r3, 5)
-		j++
-
-	}
-
-	r0 = r0 + c.k[r3&63]
-	r1 = r1 + c.k[r0&63]
-	r2 = r2 + c.k[r1&63]
-	r3 = r3 + c.k[r2&63]
-
-	for j <= 40 {
-		// mix r0
-		r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
-		r0 = rotl16(r0, 1)
-		j++
-
-		// mix r1
-		r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
-		r1 = rotl16(r1, 2)
-		j++
-
-		// mix r2
-		r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
-		r2 = rotl16(r2, 3)
-		j++
-
-		// mix r3
-		r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
-		r3 = rotl16(r3, 5)
-		j++
-
-	}
-
-	r0 = r0 + c.k[r3&63]
-	r1 = r1 + c.k[r0&63]
-	r2 = r2 + c.k[r1&63]
-	r3 = r3 + c.k[r2&63]
-
-	for j <= 60 {
-		// mix r0
-		r0 = r0 + c.k[j] + (r3 & r2) + ((^r3) & r1)
-		r0 = rotl16(r0, 1)
-		j++
-
-		// mix r1
-		r1 = r1 + c.k[j] + (r0 & r3) + ((^r0) & r2)
-		r1 = rotl16(r1, 2)
-		j++
-
-		// mix r2
-		r2 = r2 + c.k[j] + (r1 & r0) + ((^r1) & r3)
-		r2 = rotl16(r2, 3)
-		j++
-
-		// mix r3
-		r3 = r3 + c.k[j] + (r2 & r1) + ((^r2) & r0)
-		r3 = rotl16(r3, 5)
-		j++
-	}
-
-	binary.LittleEndian.PutUint16(dst[0:], r0)
-	binary.LittleEndian.PutUint16(dst[2:], r1)
-	binary.LittleEndian.PutUint16(dst[4:], r2)
-	binary.LittleEndian.PutUint16(dst[6:], r3)
-}
-
-func (c *rc2Cipher) Decrypt(dst, src []byte) {
-
-	r0 := binary.LittleEndian.Uint16(src[0:])
-	r1 := binary.LittleEndian.Uint16(src[2:])
-	r2 := binary.LittleEndian.Uint16(src[4:])
-	r3 := binary.LittleEndian.Uint16(src[6:])
-
-	j := 63
-
-	for j >= 44 {
-		// unmix r3
-		r3 = rotl16(r3, 16-5)
-		r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
-		j--
-
-		// unmix r2
-		r2 = rotl16(r2, 16-3)
-		r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
-		j--
-
-		// unmix r1
-		r1 = rotl16(r1, 16-2)
-		r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
-		j--
-
-		// unmix r0
-		r0 = rotl16(r0, 16-1)
-		r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
-		j--
-	}
-
-	r3 = r3 - c.k[r2&63]
-	r2 = r2 - c.k[r1&63]
-	r1 = r1 - c.k[r0&63]
-	r0 = r0 - c.k[r3&63]
-
-	for j >= 20 {
-		// unmix r3
-		r3 = rotl16(r3, 16-5)
-		r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
-		j--
-
-		// unmix r2
-		r2 = rotl16(r2, 16-3)
-		r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
-		j--
-
-		// unmix r1
-		r1 = rotl16(r1, 16-2)
-		r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
-		j--
-
-		// unmix r0
-		r0 = rotl16(r0, 16-1)
-		r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
-		j--
-
-	}
-
-	r3 = r3 - c.k[r2&63]
-	r2 = r2 - c.k[r1&63]
-	r1 = r1 - c.k[r0&63]
-	r0 = r0 - c.k[r3&63]
-
-	for j >= 0 {
-		// unmix r3
-		r3 = rotl16(r3, 16-5)
-		r3 = r3 - c.k[j] - (r2 & r1) - ((^r2) & r0)
-		j--
-
-		// unmix r2
-		r2 = rotl16(r2, 16-3)
-		r2 = r2 - c.k[j] - (r1 & r0) - ((^r1) & r3)
-		j--
-
-		// unmix r1
-		r1 = rotl16(r1, 16-2)
-		r1 = r1 - c.k[j] - (r0 & r3) - ((^r0) & r2)
-		j--
-
-		// unmix r0
-		r0 = rotl16(r0, 16-1)
-		r0 = r0 - c.k[j] - (r3 & r2) - ((^r3) & r1)
-		j--
-
-	}
-
-	binary.LittleEndian.PutUint16(dst[0:], r0)
-	binary.LittleEndian.PutUint16(dst[2:], r1)
-	binary.LittleEndian.PutUint16(dst[4:], r2)
-	binary.LittleEndian.PutUint16(dst[6:], r3)
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2_test.go b/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2_test.go
deleted file mode 100644
index 51a7efe..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/internal/rc2/rc2_test.go
+++ /dev/null
@@ -1,92 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package rc2
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-func TestEncryptDecrypt(t *testing.T) {
-	// TODO(dgryski): add the rest of the test vectors from the RFC
-	var tests = []struct {
-		key    string
-		plain  string
-		cipher string
-		t1     int
-	}{
-		{
-			"0000000000000000",
-			"0000000000000000",
-			"ebb773f993278eff",
-			63,
-		},
-		{
-			"ffffffffffffffff",
-			"ffffffffffffffff",
-			"278b27e42e2f0d49",
-			64,
-		},
-		{
-			"3000000000000000",
-			"1000000000000001",
-			"30649edf9be7d2c2",
-			64,
-		},
-		{
-			"88",
-			"0000000000000000",
-			"61a8a244adacccf0",
-			64,
-		},
-		{
-			"88bca90e90875a",
-			"0000000000000000",
-			"6ccf4308974c267f",
-			64,
-		},
-		{
-			"88bca90e90875a7f0f79c384627bafb2",
-			"0000000000000000",
-			"1a807d272bbe5db1",
-			64,
-		},
-		{
-			"88bca90e90875a7f0f79c384627bafb2",
-			"0000000000000000",
-			"2269552ab0f85ca6",
-			128,
-		},
-		{
-			"88bca90e90875a7f0f79c384627bafb216f80a6f85920584c42fceb0be255daf1e",
-			"0000000000000000",
-			"5b78d3a43dfff1f1",
-			129,
-		},
-	}
-
-	for _, tt := range tests {
-		k, _ := hex.DecodeString(tt.key)
-		p, _ := hex.DecodeString(tt.plain)
-		c, _ := hex.DecodeString(tt.cipher)
-
-		b, _ := New(k, tt.t1)
-
-		var dst [8]byte
-
-		b.Encrypt(dst[:], p)
-
-		if !bytes.Equal(dst[:], c) {
-			t.Errorf("encrypt failed: got % 2x wanted % 2x\n", dst, c)
-		}
-
-		b.Decrypt(dst[:], c)
-
-		if !bytes.Equal(dst[:], p) {
-			t.Errorf("decrypt failed: got % 2x wanted % 2x\n", dst, p)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/mac.go b/vendor/golang.org/x/crypto/pkcs12/mac.go
deleted file mode 100644
index 5f38aa7..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/mac.go
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"crypto/hmac"
-	"crypto/sha1"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-)
-
-type macData struct {
-	Mac        digestInfo
-	MacSalt    []byte
-	Iterations int `asn1:"optional,default:1"`
-}
-
-// from PKCS#7:
-type digestInfo struct {
-	Algorithm pkix.AlgorithmIdentifier
-	Digest    []byte
-}
-
-var (
-	oidSHA1 = asn1.ObjectIdentifier([]int{1, 3, 14, 3, 2, 26})
-)
-
-func verifyMac(macData *macData, message, password []byte) error {
-	if !macData.Mac.Algorithm.Algorithm.Equal(oidSHA1) {
-		return NotImplementedError("unknown digest algorithm: " + macData.Mac.Algorithm.Algorithm.String())
-	}
-
-	key := pbkdf(sha1Sum, 20, 64, macData.MacSalt, password, macData.Iterations, 3, 20)
-
-	mac := hmac.New(sha1.New, key)
-	mac.Write(message)
-	expectedMAC := mac.Sum(nil)
-
-	if !hmac.Equal(macData.Mac.Digest, expectedMAC) {
-		return ErrIncorrectPassword
-	}
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/mac_test.go b/vendor/golang.org/x/crypto/pkcs12/mac_test.go
deleted file mode 100644
index 1ed4ff2..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/mac_test.go
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"encoding/asn1"
-	"testing"
-)
-
-func TestVerifyMac(t *testing.T) {
-	td := macData{
-		Mac: digestInfo{
-			Digest: []byte{0x18, 0x20, 0x3d, 0xff, 0x1e, 0x16, 0xf4, 0x92, 0xf2, 0xaf, 0xc8, 0x91, 0xa9, 0xba, 0xd6, 0xca, 0x9d, 0xee, 0x51, 0x93},
-		},
-		MacSalt:    []byte{1, 2, 3, 4, 5, 6, 7, 8},
-		Iterations: 2048,
-	}
-
-	message := []byte{11, 12, 13, 14, 15}
-	password, _ := bmpString("")
-
-	td.Mac.Algorithm.Algorithm = asn1.ObjectIdentifier([]int{1, 2, 3})
-	err := verifyMac(&td, message, password)
-	if _, ok := err.(NotImplementedError); !ok {
-		t.Errorf("err: %v", err)
-	}
-
-	td.Mac.Algorithm.Algorithm = asn1.ObjectIdentifier([]int{1, 3, 14, 3, 2, 26})
-	err = verifyMac(&td, message, password)
-	if err != ErrIncorrectPassword {
-		t.Errorf("Expected incorrect password, got err: %v", err)
-	}
-
-	password, _ = bmpString("Sesame open")
-	err = verifyMac(&td, message, password)
-	if err != nil {
-		t.Errorf("err: %v", err)
-	}
-
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/pbkdf.go b/vendor/golang.org/x/crypto/pkcs12/pbkdf.go
deleted file mode 100644
index 5c419d4..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/pbkdf.go
+++ /dev/null
@@ -1,170 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"bytes"
-	"crypto/sha1"
-	"math/big"
-)
-
-var (
-	one = big.NewInt(1)
-)
-
-// sha1Sum returns the SHA-1 hash of in.
-func sha1Sum(in []byte) []byte {
-	sum := sha1.Sum(in)
-	return sum[:]
-}
-
-// fillWithRepeats returns v*ceiling(len(pattern) / v) bytes consisting of
-// repeats of pattern.
-func fillWithRepeats(pattern []byte, v int) []byte {
-	if len(pattern) == 0 {
-		return nil
-	}
-	outputLen := v * ((len(pattern) + v - 1) / v)
-	return bytes.Repeat(pattern, (outputLen+len(pattern)-1)/len(pattern))[:outputLen]
-}
-
-func pbkdf(hash func([]byte) []byte, u, v int, salt, password []byte, r int, ID byte, size int) (key []byte) {
-	// implementation of https://tools.ietf.org/html/rfc7292#appendix-B.2 , RFC text verbatim in comments
-
-	//    Let H be a hash function built around a compression function f:
-
-	//       Z_2^u x Z_2^v -> Z_2^u
-
-	//    (that is, H has a chaining variable and output of length u bits, and
-	//    the message input to the compression function of H is v bits).  The
-	//    values for u and v are as follows:
-
-	//            HASH FUNCTION     VALUE u        VALUE v
-	//              MD2, MD5          128            512
-	//                SHA-1           160            512
-	//               SHA-224          224            512
-	//               SHA-256          256            512
-	//               SHA-384          384            1024
-	//               SHA-512          512            1024
-	//             SHA-512/224        224            1024
-	//             SHA-512/256        256            1024
-
-	//    Furthermore, let r be the iteration count.
-
-	//    We assume here that u and v are both multiples of 8, as are the
-	//    lengths of the password and salt strings (which we denote by p and s,
-	//    respectively) and the number n of pseudorandom bits required.  In
-	//    addition, u and v are of course non-zero.
-
-	//    For information on security considerations for MD5 [19], see [25] and
-	//    [1], and on those for MD2, see [18].
-
-	//    The following procedure can be used to produce pseudorandom bits for
-	//    a particular "purpose" that is identified by a byte called "ID".
-	//    This standard specifies 3 different values for the ID byte:
-
-	//    1.  If ID=1, then the pseudorandom bits being produced are to be used
-	//        as key material for performing encryption or decryption.
-
-	//    2.  If ID=2, then the pseudorandom bits being produced are to be used
-	//        as an IV (Initial Value) for encryption or decryption.
-
-	//    3.  If ID=3, then the pseudorandom bits being produced are to be used
-	//        as an integrity key for MACing.
-
-	//    1.  Construct a string, D (the "diversifier"), by concatenating v/8
-	//        copies of ID.
-	var D []byte
-	for i := 0; i < v; i++ {
-		D = append(D, ID)
-	}
-
-	//    2.  Concatenate copies of the salt together to create a string S of
-	//        length v(ceiling(s/v)) bits (the final copy of the salt may be
-	//        truncated to create S).  Note that if the salt is the empty
-	//        string, then so is S.
-
-	S := fillWithRepeats(salt, v)
-
-	//    3.  Concatenate copies of the password together to create a string P
-	//        of length v(ceiling(p/v)) bits (the final copy of the password
-	//        may be truncated to create P).  Note that if the password is the
-	//        empty string, then so is P.
-
-	P := fillWithRepeats(password, v)
-
-	//    4.  Set I=S||P to be the concatenation of S and P.
-	I := append(S, P...)
-
-	//    5.  Set c=ceiling(n/u).
-	c := (size + u - 1) / u
-
-	//    6.  For i=1, 2, ..., c, do the following:
-	A := make([]byte, c*20)
-	var IjBuf []byte
-	for i := 0; i < c; i++ {
-		//        A.  Set A2=H^r(D||I). (i.e., the r-th hash of D||1,
-		//            H(H(H(... H(D||I))))
-		Ai := hash(append(D, I...))
-		for j := 1; j < r; j++ {
-			Ai = hash(Ai)
-		}
-		copy(A[i*20:], Ai[:])
-
-		if i < c-1 { // skip on last iteration
-			// B.  Concatenate copies of Ai to create a string B of length v
-			//     bits (the final copy of Ai may be truncated to create B).
-			var B []byte
-			for len(B) < v {
-				B = append(B, Ai[:]...)
-			}
-			B = B[:v]
-
-			// C.  Treating I as a concatenation I_0, I_1, ..., I_(k-1) of v-bit
-			//     blocks, where k=ceiling(s/v)+ceiling(p/v), modify I by
-			//     setting I_j=(I_j+B+1) mod 2^v for each j.
-			{
-				Bbi := new(big.Int).SetBytes(B)
-				Ij := new(big.Int)
-
-				for j := 0; j < len(I)/v; j++ {
-					Ij.SetBytes(I[j*v : (j+1)*v])
-					Ij.Add(Ij, Bbi)
-					Ij.Add(Ij, one)
-					Ijb := Ij.Bytes()
-					// We expect Ijb to be exactly v bytes,
-					// if it is longer or shorter we must
-					// adjust it accordingly.
-					if len(Ijb) > v {
-						Ijb = Ijb[len(Ijb)-v:]
-					}
-					if len(Ijb) < v {
-						if IjBuf == nil {
-							IjBuf = make([]byte, v)
-						}
-						bytesShort := v - len(Ijb)
-						for i := 0; i < bytesShort; i++ {
-							IjBuf[i] = 0
-						}
-						copy(IjBuf[bytesShort:], Ijb)
-						Ijb = IjBuf
-					}
-					copy(I[j*v:(j+1)*v], Ijb)
-				}
-			}
-		}
-	}
-	//    7.  Concatenate A_1, A_2, ..., A_c together to form a pseudorandom
-	//        bit string, A.
-
-	//    8.  Use the first n bits of A as the output of this entire process.
-	return A[:size]
-
-	//    If the above process is being used to generate a DES key, the process
-	//    should be used to create 64 random bits, and the key's parity bits
-	//    should be set after the 64 bits have been produced.  Similar concerns
-	//    hold for 2-key and 3-key triple-DES keys, for CDMF keys, and for any
-	//    similar keys with parity bits "built into them".
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/pbkdf_test.go b/vendor/golang.org/x/crypto/pkcs12/pbkdf_test.go
deleted file mode 100644
index 262037d..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/pbkdf_test.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"bytes"
-	"testing"
-)
-
-func TestThatPBKDFWorksCorrectlyForLongKeys(t *testing.T) {
-	cipherInfo := shaWithTripleDESCBC{}
-
-	salt := []byte("\xff\xff\xff\xff\xff\xff\xff\xff")
-	password, _ := bmpString("sesame")
-	key := cipherInfo.deriveKey(salt, password, 2048)
-
-	if expected := []byte("\x7c\xd9\xfd\x3e\x2b\x3b\xe7\x69\x1a\x44\xe3\xbe\xf0\xf9\xea\x0f\xb9\xb8\x97\xd4\xe3\x25\xd9\xd1"); bytes.Compare(key, expected) != 0 {
-		t.Fatalf("expected key '%x', but found '%x'", expected, key)
-	}
-}
-
-func TestThatPBKDFHandlesLeadingZeros(t *testing.T) {
-	// This test triggers a case where I_j (in step 6C) ends up with leading zero
-	// byte, meaning that len(Ijb) < v (leading zeros get stripped by big.Int).
-	// This was previously causing bug whereby certain inputs would break the
-	// derivation and produce the wrong output.
-	key := pbkdf(sha1Sum, 20, 64, []byte("\xf3\x7e\x05\xb5\x18\x32\x4b\x4b"), []byte("\x00\x00"), 2048, 1, 24)
-	expected := []byte("\x00\xf7\x59\xff\x47\xd1\x4d\xd0\x36\x65\xd5\x94\x3c\xb3\xc4\xa3\x9a\x25\x55\xc0\x2a\xed\x66\xe1")
-	if bytes.Compare(key, expected) != 0 {
-		t.Fatalf("expected key '%x', but found '%x'", expected, key)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/pkcs12.go b/vendor/golang.org/x/crypto/pkcs12/pkcs12.go
deleted file mode 100644
index eff9ad3..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/pkcs12.go
+++ /dev/null
@@ -1,346 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package pkcs12 implements some of PKCS#12.
-//
-// This implementation is distilled from https://tools.ietf.org/html/rfc7292
-// and referenced documents. It is intended for decoding P12/PFX-stored
-// certificates and keys for use with the crypto/tls package.
-package pkcs12
-
-import (
-	"crypto/ecdsa"
-	"crypto/rsa"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/asn1"
-	"encoding/hex"
-	"encoding/pem"
-	"errors"
-)
-
-var (
-	oidDataContentType          = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 1})
-	oidEncryptedDataContentType = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 7, 6})
-
-	oidFriendlyName     = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 20})
-	oidLocalKeyID       = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 21})
-	oidMicrosoftCSPName = asn1.ObjectIdentifier([]int{1, 3, 6, 1, 4, 1, 311, 17, 1})
-)
-
-type pfxPdu struct {
-	Version  int
-	AuthSafe contentInfo
-	MacData  macData `asn1:"optional"`
-}
-
-type contentInfo struct {
-	ContentType asn1.ObjectIdentifier
-	Content     asn1.RawValue `asn1:"tag:0,explicit,optional"`
-}
-
-type encryptedData struct {
-	Version              int
-	EncryptedContentInfo encryptedContentInfo
-}
-
-type encryptedContentInfo struct {
-	ContentType                asn1.ObjectIdentifier
-	ContentEncryptionAlgorithm pkix.AlgorithmIdentifier
-	EncryptedContent           []byte `asn1:"tag:0,optional"`
-}
-
-func (i encryptedContentInfo) Algorithm() pkix.AlgorithmIdentifier {
-	return i.ContentEncryptionAlgorithm
-}
-
-func (i encryptedContentInfo) Data() []byte { return i.EncryptedContent }
-
-type safeBag struct {
-	Id         asn1.ObjectIdentifier
-	Value      asn1.RawValue     `asn1:"tag:0,explicit"`
-	Attributes []pkcs12Attribute `asn1:"set,optional"`
-}
-
-type pkcs12Attribute struct {
-	Id    asn1.ObjectIdentifier
-	Value asn1.RawValue `asn1:"set"`
-}
-
-type encryptedPrivateKeyInfo struct {
-	AlgorithmIdentifier pkix.AlgorithmIdentifier
-	EncryptedData       []byte
-}
-
-func (i encryptedPrivateKeyInfo) Algorithm() pkix.AlgorithmIdentifier {
-	return i.AlgorithmIdentifier
-}
-
-func (i encryptedPrivateKeyInfo) Data() []byte {
-	return i.EncryptedData
-}
-
-// PEM block types
-const (
-	certificateType = "CERTIFICATE"
-	privateKeyType  = "PRIVATE KEY"
-)
-
-// unmarshal calls asn1.Unmarshal, but also returns an error if there is any
-// trailing data after unmarshaling.
-func unmarshal(in []byte, out interface{}) error {
-	trailing, err := asn1.Unmarshal(in, out)
-	if err != nil {
-		return err
-	}
-	if len(trailing) != 0 {
-		return errors.New("pkcs12: trailing data found")
-	}
-	return nil
-}
-
-// ConvertToPEM converts all "safe bags" contained in pfxData to PEM blocks.
-func ToPEM(pfxData []byte, password string) ([]*pem.Block, error) {
-	encodedPassword, err := bmpString(password)
-	if err != nil {
-		return nil, ErrIncorrectPassword
-	}
-
-	bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword)
-
-	if err != nil {
-		return nil, err
-	}
-
-	blocks := make([]*pem.Block, 0, len(bags))
-	for _, bag := range bags {
-		block, err := convertBag(&bag, encodedPassword)
-		if err != nil {
-			return nil, err
-		}
-		blocks = append(blocks, block)
-	}
-
-	return blocks, nil
-}
-
-func convertBag(bag *safeBag, password []byte) (*pem.Block, error) {
-	block := &pem.Block{
-		Headers: make(map[string]string),
-	}
-
-	for _, attribute := range bag.Attributes {
-		k, v, err := convertAttribute(&attribute)
-		if err != nil {
-			return nil, err
-		}
-		block.Headers[k] = v
-	}
-
-	switch {
-	case bag.Id.Equal(oidCertBag):
-		block.Type = certificateType
-		certsData, err := decodeCertBag(bag.Value.Bytes)
-		if err != nil {
-			return nil, err
-		}
-		block.Bytes = certsData
-	case bag.Id.Equal(oidPKCS8ShroundedKeyBag):
-		block.Type = privateKeyType
-
-		key, err := decodePkcs8ShroudedKeyBag(bag.Value.Bytes, password)
-		if err != nil {
-			return nil, err
-		}
-
-		switch key := key.(type) {
-		case *rsa.PrivateKey:
-			block.Bytes = x509.MarshalPKCS1PrivateKey(key)
-		case *ecdsa.PrivateKey:
-			block.Bytes, err = x509.MarshalECPrivateKey(key)
-			if err != nil {
-				return nil, err
-			}
-		default:
-			return nil, errors.New("found unknown private key type in PKCS#8 wrapping")
-		}
-	default:
-		return nil, errors.New("don't know how to convert a safe bag of type " + bag.Id.String())
-	}
-	return block, nil
-}
-
-func convertAttribute(attribute *pkcs12Attribute) (key, value string, err error) {
-	isString := false
-
-	switch {
-	case attribute.Id.Equal(oidFriendlyName):
-		key = "friendlyName"
-		isString = true
-	case attribute.Id.Equal(oidLocalKeyID):
-		key = "localKeyId"
-	case attribute.Id.Equal(oidMicrosoftCSPName):
-		// This key is chosen to match OpenSSL.
-		key = "Microsoft CSP Name"
-		isString = true
-	default:
-		return "", "", errors.New("pkcs12: unknown attribute with OID " + attribute.Id.String())
-	}
-
-	if isString {
-		if err := unmarshal(attribute.Value.Bytes, &attribute.Value); err != nil {
-			return "", "", err
-		}
-		if value, err = decodeBMPString(attribute.Value.Bytes); err != nil {
-			return "", "", err
-		}
-	} else {
-		var id []byte
-		if err := unmarshal(attribute.Value.Bytes, &id); err != nil {
-			return "", "", err
-		}
-		value = hex.EncodeToString(id)
-	}
-
-	return key, value, nil
-}
-
-// Decode extracts a certificate and private key from pfxData. This function
-// assumes that there is only one certificate and only one private key in the
-// pfxData.
-func Decode(pfxData []byte, password string) (privateKey interface{}, certificate *x509.Certificate, err error) {
-	encodedPassword, err := bmpString(password)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	bags, encodedPassword, err := getSafeContents(pfxData, encodedPassword)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	if len(bags) != 2 {
-		err = errors.New("pkcs12: expected exactly two safe bags in the PFX PDU")
-		return
-	}
-
-	for _, bag := range bags {
-		switch {
-		case bag.Id.Equal(oidCertBag):
-			if certificate != nil {
-				err = errors.New("pkcs12: expected exactly one certificate bag")
-			}
-
-			certsData, err := decodeCertBag(bag.Value.Bytes)
-			if err != nil {
-				return nil, nil, err
-			}
-			certs, err := x509.ParseCertificates(certsData)
-			if err != nil {
-				return nil, nil, err
-			}
-			if len(certs) != 1 {
-				err = errors.New("pkcs12: expected exactly one certificate in the certBag")
-				return nil, nil, err
-			}
-			certificate = certs[0]
-
-		case bag.Id.Equal(oidPKCS8ShroundedKeyBag):
-			if privateKey != nil {
-				err = errors.New("pkcs12: expected exactly one key bag")
-			}
-
-			if privateKey, err = decodePkcs8ShroudedKeyBag(bag.Value.Bytes, encodedPassword); err != nil {
-				return nil, nil, err
-			}
-		}
-	}
-
-	if certificate == nil {
-		return nil, nil, errors.New("pkcs12: certificate missing")
-	}
-	if privateKey == nil {
-		return nil, nil, errors.New("pkcs12: private key missing")
-	}
-
-	return
-}
-
-func getSafeContents(p12Data, password []byte) (bags []safeBag, updatedPassword []byte, err error) {
-	pfx := new(pfxPdu)
-	if err := unmarshal(p12Data, pfx); err != nil {
-		return nil, nil, errors.New("pkcs12: error reading P12 data: " + err.Error())
-	}
-
-	if pfx.Version != 3 {
-		return nil, nil, NotImplementedError("can only decode v3 PFX PDU's")
-	}
-
-	if !pfx.AuthSafe.ContentType.Equal(oidDataContentType) {
-		return nil, nil, NotImplementedError("only password-protected PFX is implemented")
-	}
-
-	// unmarshal the explicit bytes in the content for type 'data'
-	if err := unmarshal(pfx.AuthSafe.Content.Bytes, &pfx.AuthSafe.Content); err != nil {
-		return nil, nil, err
-	}
-
-	if len(pfx.MacData.Mac.Algorithm.Algorithm) == 0 {
-		return nil, nil, errors.New("pkcs12: no MAC in data")
-	}
-
-	if err := verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password); err != nil {
-		if err == ErrIncorrectPassword && len(password) == 2 && password[0] == 0 && password[1] == 0 {
-			// some implementations use an empty byte array
-			// for the empty string password try one more
-			// time with empty-empty password
-			password = nil
-			err = verifyMac(&pfx.MacData, pfx.AuthSafe.Content.Bytes, password)
-		}
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-
-	var authenticatedSafe []contentInfo
-	if err := unmarshal(pfx.AuthSafe.Content.Bytes, &authenticatedSafe); err != nil {
-		return nil, nil, err
-	}
-
-	if len(authenticatedSafe) != 2 {
-		return nil, nil, NotImplementedError("expected exactly two items in the authenticated safe")
-	}
-
-	for _, ci := range authenticatedSafe {
-		var data []byte
-
-		switch {
-		case ci.ContentType.Equal(oidDataContentType):
-			if err := unmarshal(ci.Content.Bytes, &data); err != nil {
-				return nil, nil, err
-			}
-		case ci.ContentType.Equal(oidEncryptedDataContentType):
-			var encryptedData encryptedData
-			if err := unmarshal(ci.Content.Bytes, &encryptedData); err != nil {
-				return nil, nil, err
-			}
-			if encryptedData.Version != 0 {
-				return nil, nil, NotImplementedError("only version 0 of EncryptedData is supported")
-			}
-			if data, err = pbDecrypt(encryptedData.EncryptedContentInfo, password); err != nil {
-				return nil, nil, err
-			}
-		default:
-			return nil, nil, NotImplementedError("only data and encryptedData content types are supported in authenticated safe")
-		}
-
-		var safeContents []safeBag
-		if err := unmarshal(data, &safeContents); err != nil {
-			return nil, nil, err
-		}
-		bags = append(bags, safeContents...)
-	}
-
-	return bags, password, nil
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/pkcs12_test.go b/vendor/golang.org/x/crypto/pkcs12/pkcs12_test.go
deleted file mode 100644
index 14dd2a6..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/pkcs12_test.go
+++ /dev/null
@@ -1,138 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"crypto/rsa"
-	"crypto/tls"
-	"encoding/base64"
-	"encoding/pem"
-	"testing"
-)
-
-func TestPfx(t *testing.T) {
-	for commonName, base64P12 := range testdata {
-		p12, _ := base64.StdEncoding.DecodeString(base64P12)
-
-		priv, cert, err := Decode(p12, "")
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if err := priv.(*rsa.PrivateKey).Validate(); err != nil {
-			t.Errorf("error while validating private key: %v", err)
-		}
-
-		if cert.Subject.CommonName != commonName {
-			t.Errorf("expected common name to be %q, but found %q", commonName, cert.Subject.CommonName)
-		}
-	}
-}
-
-func TestPEM(t *testing.T) {
-	for commonName, base64P12 := range testdata {
-		p12, _ := base64.StdEncoding.DecodeString(base64P12)
-
-		blocks, err := ToPEM(p12, "")
-		if err != nil {
-			t.Fatalf("error while converting to PEM: %s", err)
-		}
-
-		var pemData []byte
-		for _, b := range blocks {
-			pemData = append(pemData, pem.EncodeToMemory(b)...)
-		}
-
-		cert, err := tls.X509KeyPair(pemData, pemData)
-		if err != nil {
-			t.Errorf("err while converting to key pair: %v", err)
-		}
-		config := tls.Config{
-			Certificates: []tls.Certificate{cert},
-		}
-		config.BuildNameToCertificate()
-
-		if _, exists := config.NameToCertificate[commonName]; !exists {
-			t.Errorf("did not find our cert in PEM?: %v", config.NameToCertificate)
-		}
-	}
-}
-
-func ExampleToPEM() {
-	p12, _ := base64.StdEncoding.DecodeString(`MIIJzgIBAzCCCZQGCS ... CA+gwggPk==`)
-
-	blocks, err := ToPEM(p12, "password")
-	if err != nil {
-		panic(err)
-	}
-
-	var pemData []byte
-	for _, b := range blocks {
-		pemData = append(pemData, pem.EncodeToMemory(b)...)
-	}
-
-	// then use PEM data for tls to construct tls certificate:
-	cert, err := tls.X509KeyPair(pemData, pemData)
-	if err != nil {
-		panic(err)
-	}
-
-	config := &tls.Config{
-		Certificates: []tls.Certificate{cert},
-	}
-
-	_ = config
-}
-
-var testdata = map[string]string{
-	// 'null' password test case
-	"Windows Azure Tools": `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`,
-	// empty string password test case
-	"testing@example.com": `MIIJzgIBAzCCCZQGCSqGSIb3DQEHAaCCCYUEggmBMIIJfTCCA/cGCSqGSIb3DQEHBqCCA+gwggPk
-AgEAMIID3QYJKoZIhvcNAQcBMBwGCiqGSIb3DQEMAQYwDgQIIszfRGqcmPcCAggAgIIDsOZ9Eg1L
-s5Wx8JhYoV3HAL4aRnkAWvTYB5NISZOgSgIQTssmt/3A7134dibTmaT/93LikkL3cTKLnQzJ4wDf
-YZ1bprpVJvUqz+HFT79m27bP9zYXFrvxWBJbxjYKTSjQMgz+h8LAEpXXGajCmxMJ1oCOtdXkhhzc
-LdZN6SAYgtmtyFnCdMEDskSggGuLb3fw84QEJ/Sj6FAULXunW/CPaS7Ce0TMsKmNU/jfFWj3yXXw
-ro0kwjKiVLpVFlnBlHo2OoVU7hmkm59YpGhLgS7nxLD3n7nBroQ0ID1+8R01NnV9XLGoGzxMm1te
-6UyTCkr5mj+kEQ8EP1Ys7g/TC411uhVWySMt/rcpkx7Vz1r9kYEAzJpONAfr6cuEVkPKrxpq4Fh0
-2fzlKBky0i/hrfIEUmngh+ERHUb/Mtv/fkv1j5w9suESbhsMLLiCXAlsP1UWMX+3bNizi3WVMEts
-FM2k9byn+p8IUD/A8ULlE4kEaWeoc+2idkCNQkLGuIdGUXUFVm58se0auUkVRoRJx8x4CkMesT8j
-b1H831W66YRWoEwwDQp2kK1lA2vQXxdVHWlFevMNxJeromLzj3ayiaFrfByeUXhR2S+Hpm+c0yNR
-4UVU9WED2kacsZcpRm9nlEa5sr28mri5JdBrNa/K02OOhvKCxr5ZGmbOVzUQKla2z4w+Ku9k8POm
-dfDNU/fGx1b5hcFWtghXe3msWVsSJrQihnN6q1ughzNiYZlJUGcHdZDRtiWwCFI0bR8h/Dmg9uO9
-4rawQQrjIRT7B8yF3UbkZyAqs8Ppb1TsMeNPHh1rxEfGVQknh/48ouJYsmtbnzugTUt3mJCXXiL+
-XcPMV6bBVAUu4aaVKSmg9+yJtY4/VKv10iw88ktv29fViIdBe3t6l/oPuvQgbQ8dqf4T8w0l/uKZ
-9lS1Na9jfT1vCoS7F5TRi+tmyj1vL5kr/amEIW6xKEP6oeAMvCMtbPAzVEj38zdJ1R22FfuIBxkh
-f0Zl7pdVbmzRxl/SBx9iIBJSqAvcXItiT0FIj8HxQ+0iZKqMQMiBuNWJf5pYOLWGrIyntCWwHuaQ
-wrx0sTGuEL9YXLEAsBDrsvzLkx/56E4INGZFrH8G7HBdW6iGqb22IMI4GHltYSyBRKbB0gadYTyv
-abPEoqww8o7/85aPSzOTJ/53ozD438Q+d0u9SyDuOb60SzCD/zPuCEd78YgtXJwBYTuUNRT27FaM
-3LGMX8Hz+6yPNRnmnA2XKPn7dx/IlaqAjIs8MIIFfgYJKoZIhvcNAQcBoIIFbwSCBWswggVnMIIF
-YwYLKoZIhvcNAQwKAQKgggTuMIIE6jAcBgoqhkiG9w0BDAEDMA4ECJr0cClYqOlcAgIIAASCBMhe
-OQSiP2s0/46ONXcNeVAkz2ksW3u/+qorhSiskGZ0b3dFa1hhgBU2Q7JVIkc4Hf7OXaT1eVQ8oqND
-uhqsNz83/kqYo70+LS8Hocj49jFgWAKrf/yQkdyP1daHa2yzlEw4mkpqOfnIORQHvYCa8nEApspZ
-wVu8y6WVuLHKU67mel7db2xwstQp7PRuSAYqGjTfAylElog8ASdaqqYbYIrCXucF8iF9oVgmb/Qo
-xrXshJ9aSLO4MuXlTPELmWgj07AXKSb90FKNihE+y0bWb9LPVFY1Sly3AX9PfrtkSXIZwqW3phpv
-MxGxQl/R6mr1z+hlTfY9Wdpb5vlKXPKA0L0Rt8d2pOesylFi6esJoS01QgP1kJILjbrV731kvDc0
-Jsd+Oxv4BMwA7ClG8w1EAOInc/GrV1MWFGw/HeEqj3CZ/l/0jv9bwkbVeVCiIhoL6P6lVx9pXq4t
-KZ0uKg/tk5TVJmG2vLcMLvezD0Yk3G2ZOMrywtmskrwoF7oAUpO9e87szoH6fEvUZlkDkPVW1NV4
-cZk3DBSQiuA3VOOg8qbo/tx/EE3H59P0axZWno2GSB0wFPWd1aj+b//tJEJHaaNR6qPRj4IWj9ru
-Qbc8eRAcVWleHg8uAehSvUXlFpyMQREyrnpvMGddpiTC8N4UMrrBRhV7+UbCOWhxPCbItnInBqgl
-1JpSZIP7iUtsIMdu3fEC2cdbXMTRul+4rdzUR7F9OaezV3jjvcAbDvgbK1CpyC+MJ1Mxm/iTgk9V
-iUArydhlR8OniN84GyGYoYCW9O/KUwb6ASmeFOu/msx8x6kAsSQHIkKqMKv0TUR3kZnkxUvdpBGP
-KTl4YCTvNGX4dYALBqrAETRDhua2KVBD/kEttDHwBNVbN2xi81+Mc7ml461aADfk0c66R/m2sjHB
-2tN9+wG12OIWFQjL6wF/UfJMYamxx2zOOExiId29Opt57uYiNVLOO4ourPewHPeH0u8Gz35aero7
-lkt7cZAe1Q0038JUuE/QGlnK4lESK9UkSIQAjSaAlTsrcfwtQxB2EjoOoLhwH5mvxUEmcNGNnXUc
-9xj3M5BD3zBz3Ft7G3YMMDwB1+zC2l+0UG0MGVjMVaeoy32VVNvxgX7jk22OXG1iaOB+PY9kdk+O
-X+52BGSf/rD6X0EnqY7XuRPkMGgjtpZeAYxRQnFtCZgDY4wYheuxqSSpdF49yNczSPLkgB3CeCfS
-+9NTKN7aC6hBbmW/8yYh6OvSiCEwY0lFS/T+7iaVxr1loE4zI1y/FFp4Pe1qfLlLttVlkygga2UU
-SCunTQ8UB/M5IXWKkhMOO11dP4niWwb39Y7pCWpau7mwbXOKfRPX96cgHnQJK5uG+BesDD1oYnX0
-6frN7FOnTSHKruRIwuI8KnOQ/I+owmyz71wiv5LMQt+yM47UrEjB/EZa5X8dpEwOZvkdqL7utcyo
-l0XH5kWMXdW856LL/FYftAqJIDAmtX1TXF/rbP6mPyN/IlDC0gjP84Uzd/a2UyTIWr+wk49Ek3vQ
-/uDamq6QrwAxVmNh5Tset5Vhpc1e1kb7mRMZIzxSP8JcTuYd45oFKi98I8YjvueHVZce1g7OudQP
-SbFQoJvdT46iBg1TTatlltpOiH2mFaxWVS0xYjAjBgkqhkiG9w0BCRUxFgQUdA9eVqvETX4an/c8
-p8SsTugkit8wOwYJKoZIhvcNAQkUMS4eLABGAHIAaQBlAG4AZABsAHkAIABuAGEAbQBlACAAZgBv
-AHIAIABjAGUAcgB0MDEwITAJBgUrDgMCGgUABBRFsNz3Zd1O1GI8GTuFwCWuDOjEEwQIuBEfIcAy
-HQ8CAggA`,
-}
diff --git a/vendor/golang.org/x/crypto/pkcs12/safebags.go b/vendor/golang.org/x/crypto/pkcs12/safebags.go
deleted file mode 100644
index def1f7b..0000000
--- a/vendor/golang.org/x/crypto/pkcs12/safebags.go
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package pkcs12
-
-import (
-	"crypto/x509"
-	"encoding/asn1"
-	"errors"
-)
-
-var (
-	// see https://tools.ietf.org/html/rfc7292#appendix-D
-	oidCertTypeX509Certificate = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 9, 22, 1})
-	oidPKCS8ShroundedKeyBag    = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 2})
-	oidCertBag                 = asn1.ObjectIdentifier([]int{1, 2, 840, 113549, 1, 12, 10, 1, 3})
-)
-
-type certBag struct {
-	Id   asn1.ObjectIdentifier
-	Data []byte `asn1:"tag:0,explicit"`
-}
-
-func decodePkcs8ShroudedKeyBag(asn1Data, password []byte) (privateKey interface{}, err error) {
-	pkinfo := new(encryptedPrivateKeyInfo)
-	if err = unmarshal(asn1Data, pkinfo); err != nil {
-		return nil, errors.New("pkcs12: error decoding PKCS#8 shrouded key bag: " + err.Error())
-	}
-
-	pkData, err := pbDecrypt(pkinfo, password)
-	if err != nil {
-		return nil, errors.New("pkcs12: error decrypting PKCS#8 shrouded key bag: " + err.Error())
-	}
-
-	ret := new(asn1.RawValue)
-	if err = unmarshal(pkData, ret); err != nil {
-		return nil, errors.New("pkcs12: error unmarshaling decrypted private key: " + err.Error())
-	}
-
-	if privateKey, err = x509.ParsePKCS8PrivateKey(pkData); err != nil {
-		return nil, errors.New("pkcs12: error parsing PKCS#8 private key: " + err.Error())
-	}
-
-	return privateKey, nil
-}
-
-func decodeCertBag(asn1Data []byte) (x509Certificates []byte, err error) {
-	bag := new(certBag)
-	if err := unmarshal(asn1Data, bag); err != nil {
-		return nil, errors.New("pkcs12: error decoding cert bag: " + err.Error())
-	}
-	if !bag.Id.Equal(oidCertTypeX509Certificate) {
-		return nil, NotImplementedError("only X509 certificates are supported")
-	}
-	return bag.Data, nil
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/poly1305.go b/vendor/golang.org/x/crypto/poly1305/poly1305.go
deleted file mode 100644
index f562fa5..0000000
--- a/vendor/golang.org/x/crypto/poly1305/poly1305.go
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package poly1305 implements Poly1305 one-time message authentication code as
-specified in https://cr.yp.to/mac/poly1305-20050329.pdf.
-
-Poly1305 is a fast, one-time authentication function. It is infeasible for an
-attacker to generate an authenticator for a message without the key. However, a
-key must only be used for a single message. Authenticating two different
-messages with the same key allows an attacker to forge authenticators for other
-messages with the same key.
-
-Poly1305 was originally coupled with AES in order to make Poly1305-AES. AES was
-used with a fixed key in order to generate one-time keys from an nonce.
-However, in this package AES isn't used and the one-time key is specified
-directly.
-*/
-package poly1305 // import "golang.org/x/crypto/poly1305"
-
-import "crypto/subtle"
-
-// TagSize is the size, in bytes, of a poly1305 authenticator.
-const TagSize = 16
-
-// Verify returns true if mac is a valid authenticator for m with the given
-// key.
-func Verify(mac *[16]byte, m []byte, key *[32]byte) bool {
-	var tmp [16]byte
-	Sum(&tmp, m, key)
-	return subtle.ConstantTimeCompare(tmp[:], mac[:]) == 1
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/poly1305_test.go b/vendor/golang.org/x/crypto/poly1305/poly1305_test.go
deleted file mode 100644
index 256bdbb..0000000
--- a/vendor/golang.org/x/crypto/poly1305/poly1305_test.go
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package poly1305
-
-import (
-	"encoding/hex"
-	"flag"
-	"testing"
-	"unsafe"
-)
-
-var stressFlag = flag.Bool("stress", false, "run slow stress tests")
-
-type test struct {
-	in  string
-	key string
-	tag string
-}
-
-func (t *test) Input() []byte {
-	in, err := hex.DecodeString(t.in)
-	if err != nil {
-		panic(err)
-	}
-	return in
-}
-
-func (t *test) Key() [32]byte {
-	buf, err := hex.DecodeString(t.key)
-	if err != nil {
-		panic(err)
-	}
-	var key [32]byte
-	copy(key[:], buf[:32])
-	return key
-}
-
-func (t *test) Tag() [16]byte {
-	buf, err := hex.DecodeString(t.tag)
-	if err != nil {
-		panic(err)
-	}
-	var tag [16]byte
-	copy(tag[:], buf[:16])
-	return tag
-}
-
-func testSum(t *testing.T, unaligned bool, sumImpl func(tag *[TagSize]byte, msg []byte, key *[32]byte)) {
-	var tag [16]byte
-	for i, v := range testData {
-		in := v.Input()
-		if unaligned {
-			in = unalignBytes(in)
-		}
-		key := v.Key()
-		sumImpl(&tag, in, &key)
-		if tag != v.Tag() {
-			t.Errorf("%d: expected %x, got %x", i, v.Tag(), tag[:])
-		}
-	}
-}
-
-func TestBurnin(t *testing.T) {
-	// This test can be used to sanity-check significant changes. It can
-	// take about many minutes to run, even on fast machines. It's disabled
-	// by default.
-	if !*stressFlag {
-		t.Skip("skipping without -stress")
-	}
-
-	var key [32]byte
-	var input [25]byte
-	var output [16]byte
-
-	for i := range key {
-		key[i] = 1
-	}
-	for i := range input {
-		input[i] = 2
-	}
-
-	for i := uint64(0); i < 1e10; i++ {
-		Sum(&output, input[:], &key)
-		copy(key[0:], output[:])
-		copy(key[16:], output[:])
-		copy(input[:], output[:])
-		copy(input[16:], output[:])
-	}
-
-	const expected = "5e3b866aea0b636d240c83c428f84bfa"
-	if got := hex.EncodeToString(output[:]); got != expected {
-		t.Errorf("expected %s, got %s", expected, got)
-	}
-}
-
-func TestSum(t *testing.T)                 { testSum(t, false, Sum) }
-func TestSumUnaligned(t *testing.T)        { testSum(t, true, Sum) }
-func TestSumGeneric(t *testing.T)          { testSum(t, false, sumGeneric) }
-func TestSumGenericUnaligned(t *testing.T) { testSum(t, true, sumGeneric) }
-
-func benchmark(b *testing.B, size int, unaligned bool) {
-	var out [16]byte
-	var key [32]byte
-	in := make([]byte, size)
-	if unaligned {
-		in = unalignBytes(in)
-	}
-	b.SetBytes(int64(len(in)))
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		Sum(&out, in, &key)
-	}
-}
-
-func Benchmark64(b *testing.B)          { benchmark(b, 64, false) }
-func Benchmark1K(b *testing.B)          { benchmark(b, 1024, false) }
-func Benchmark64Unaligned(b *testing.B) { benchmark(b, 64, true) }
-func Benchmark1KUnaligned(b *testing.B) { benchmark(b, 1024, true) }
-func Benchmark2M(b *testing.B)          { benchmark(b, 2097152, true) }
-
-func unalignBytes(in []byte) []byte {
-	out := make([]byte, len(in)+1)
-	if uintptr(unsafe.Pointer(&out[0]))&(unsafe.Alignof(uint32(0))-1) == 0 {
-		out = out[1:]
-	} else {
-		out = out[:len(in)]
-	}
-	copy(out, in)
-	return out
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go b/vendor/golang.org/x/crypto/poly1305/sum_amd64.go
deleted file mode 100644
index 4dd72fe..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-package poly1305
-
-// This function is implemented in sum_amd64.s
-//go:noescape
-func poly1305(out *[16]byte, m *byte, mlen uint64, key *[32]byte)
-
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
-	var mPtr *byte
-	if len(m) > 0 {
-		mPtr = &m[0]
-	}
-	poly1305(out, mPtr, uint64(len(m)), key)
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s b/vendor/golang.org/x/crypto/poly1305/sum_amd64.s
deleted file mode 100644
index 2edae63..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!gccgo,!appengine
-
-#include "textflag.h"
-
-#define POLY1305_ADD(msg, h0, h1, h2) \
-	ADDQ 0(msg), h0;  \
-	ADCQ 8(msg), h1;  \
-	ADCQ $1, h2;      \
-	LEAQ 16(msg), msg
-
-#define POLY1305_MUL(h0, h1, h2, r0, r1, t0, t1, t2, t3) \
-	MOVQ  r0, AX;                  \
-	MULQ  h0;                      \
-	MOVQ  AX, t0;                  \
-	MOVQ  DX, t1;                  \
-	MOVQ  r0, AX;                  \
-	MULQ  h1;                      \
-	ADDQ  AX, t1;                  \
-	ADCQ  $0, DX;                  \
-	MOVQ  r0, t2;                  \
-	IMULQ h2, t2;                  \
-	ADDQ  DX, t2;                  \
-	                               \
-	MOVQ  r1, AX;                  \
-	MULQ  h0;                      \
-	ADDQ  AX, t1;                  \
-	ADCQ  $0, DX;                  \
-	MOVQ  DX, h0;                  \
-	MOVQ  r1, t3;                  \
-	IMULQ h2, t3;                  \
-	MOVQ  r1, AX;                  \
-	MULQ  h1;                      \
-	ADDQ  AX, t2;                  \
-	ADCQ  DX, t3;                  \
-	ADDQ  h0, t2;                  \
-	ADCQ  $0, t3;                  \
-	                               \
-	MOVQ  t0, h0;                  \
-	MOVQ  t1, h1;                  \
-	MOVQ  t2, h2;                  \
-	ANDQ  $3, h2;                  \
-	MOVQ  t2, t0;                  \
-	ANDQ  $0xFFFFFFFFFFFFFFFC, t0; \
-	ADDQ  t0, h0;                  \
-	ADCQ  t3, h1;                  \
-	ADCQ  $0, h2;                  \
-	SHRQ  $2, t3, t2;              \
-	SHRQ  $2, t3;                  \
-	ADDQ  t2, h0;                  \
-	ADCQ  t3, h1;                  \
-	ADCQ  $0, h2
-
-DATA ·poly1305Mask<>+0x00(SB)/8, $0x0FFFFFFC0FFFFFFF
-DATA ·poly1305Mask<>+0x08(SB)/8, $0x0FFFFFFC0FFFFFFC
-GLOBL ·poly1305Mask<>(SB), RODATA, $16
-
-// func poly1305(out *[16]byte, m *byte, mlen uint64, key *[32]key)
-TEXT ·poly1305(SB), $0-32
-	MOVQ out+0(FP), DI
-	MOVQ m+8(FP), SI
-	MOVQ mlen+16(FP), R15
-	MOVQ key+24(FP), AX
-
-	MOVQ 0(AX), R11
-	MOVQ 8(AX), R12
-	ANDQ ·poly1305Mask<>(SB), R11   // r0
-	ANDQ ·poly1305Mask<>+8(SB), R12 // r1
-	XORQ R8, R8                    // h0
-	XORQ R9, R9                    // h1
-	XORQ R10, R10                  // h2
-
-	CMPQ R15, $16
-	JB   bytes_between_0_and_15
-
-loop:
-	POLY1305_ADD(SI, R8, R9, R10)
-
-multiply:
-	POLY1305_MUL(R8, R9, R10, R11, R12, BX, CX, R13, R14)
-	SUBQ $16, R15
-	CMPQ R15, $16
-	JAE  loop
-
-bytes_between_0_and_15:
-	TESTQ R15, R15
-	JZ    done
-	MOVQ  $1, BX
-	XORQ  CX, CX
-	XORQ  R13, R13
-	ADDQ  R15, SI
-
-flush_buffer:
-	SHLQ $8, BX, CX
-	SHLQ $8, BX
-	MOVB -1(SI), R13
-	XORQ R13, BX
-	DECQ SI
-	DECQ R15
-	JNZ  flush_buffer
-
-	ADDQ BX, R8
-	ADCQ CX, R9
-	ADCQ $0, R10
-	MOVQ $16, R15
-	JMP  multiply
-
-done:
-	MOVQ    R8, AX
-	MOVQ    R9, BX
-	SUBQ    $0xFFFFFFFFFFFFFFFB, AX
-	SBBQ    $0xFFFFFFFFFFFFFFFF, BX
-	SBBQ    $3, R10
-	CMOVQCS R8, AX
-	CMOVQCS R9, BX
-	MOVQ    key+24(FP), R8
-	ADDQ    16(R8), AX
-	ADCQ    24(R8), BX
-
-	MOVQ AX, 0(DI)
-	MOVQ BX, 8(DI)
-	RET
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_arm.go b/vendor/golang.org/x/crypto/poly1305/sum_arm.go
deleted file mode 100644
index 5dc321c..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_arm.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build arm,!gccgo,!appengine,!nacl
-
-package poly1305
-
-// This function is implemented in sum_arm.s
-//go:noescape
-func poly1305_auth_armv6(out *[16]byte, m *byte, mlen uint32, key *[32]byte)
-
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
-	var mPtr *byte
-	if len(m) > 0 {
-		mPtr = &m[0]
-	}
-	poly1305_auth_armv6(out, mPtr, uint32(len(m)), key)
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_arm.s b/vendor/golang.org/x/crypto/poly1305/sum_arm.s
deleted file mode 100644
index f70b4ac..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_arm.s
+++ /dev/null
@@ -1,427 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build arm,!gccgo,!appengine,!nacl
-
-#include "textflag.h"
-
-// This code was translated into a form compatible with 5a from the public
-// domain source by Andrew Moon: github.com/floodyberry/poly1305-opt/blob/master/app/extensions/poly1305.
-
-DATA ·poly1305_init_constants_armv6<>+0x00(SB)/4, $0x3ffffff
-DATA ·poly1305_init_constants_armv6<>+0x04(SB)/4, $0x3ffff03
-DATA ·poly1305_init_constants_armv6<>+0x08(SB)/4, $0x3ffc0ff
-DATA ·poly1305_init_constants_armv6<>+0x0c(SB)/4, $0x3f03fff
-DATA ·poly1305_init_constants_armv6<>+0x10(SB)/4, $0x00fffff
-GLOBL ·poly1305_init_constants_armv6<>(SB), 8, $20
-
-// Warning: the linker may use R11 to synthesize certain instructions. Please
-// take care and verify that no synthetic instructions use it.
-
-TEXT poly1305_init_ext_armv6<>(SB), NOSPLIT, $0
-	// Needs 16 bytes of stack and 64 bytes of space pointed to by R0.  (It
-	// might look like it's only 60 bytes of space but the final four bytes
-	// will be written by another function.) We need to skip over four
-	// bytes of stack because that's saving the value of 'g'.
-	ADD       $4, R13, R8
-	MOVM.IB   [R4-R7], (R8)
-	MOVM.IA.W (R1), [R2-R5]
-	MOVW      $·poly1305_init_constants_armv6<>(SB), R7
-	MOVW      R2, R8
-	MOVW      R2>>26, R9
-	MOVW      R3>>20, g
-	MOVW      R4>>14, R11
-	MOVW      R5>>8, R12
-	ORR       R3<<6, R9, R9
-	ORR       R4<<12, g, g
-	ORR       R5<<18, R11, R11
-	MOVM.IA   (R7), [R2-R6]
-	AND       R8, R2, R2
-	AND       R9, R3, R3
-	AND       g, R4, R4
-	AND       R11, R5, R5
-	AND       R12, R6, R6
-	MOVM.IA.W [R2-R6], (R0)
-	EOR       R2, R2, R2
-	EOR       R3, R3, R3
-	EOR       R4, R4, R4
-	EOR       R5, R5, R5
-	EOR       R6, R6, R6
-	MOVM.IA.W [R2-R6], (R0)
-	MOVM.IA.W (R1), [R2-R5]
-	MOVM.IA   [R2-R6], (R0)
-	ADD       $20, R13, R0
-	MOVM.DA   (R0), [R4-R7]
-	RET
-
-#define MOVW_UNALIGNED(Rsrc, Rdst, Rtmp, offset) \
-	MOVBU (offset+0)(Rsrc), Rtmp; \
-	MOVBU Rtmp, (offset+0)(Rdst); \
-	MOVBU (offset+1)(Rsrc), Rtmp; \
-	MOVBU Rtmp, (offset+1)(Rdst); \
-	MOVBU (offset+2)(Rsrc), Rtmp; \
-	MOVBU Rtmp, (offset+2)(Rdst); \
-	MOVBU (offset+3)(Rsrc), Rtmp; \
-	MOVBU Rtmp, (offset+3)(Rdst)
-
-TEXT poly1305_blocks_armv6<>(SB), NOSPLIT, $0
-	// Needs 24 bytes of stack for saved registers and then 88 bytes of
-	// scratch space after that. We assume that 24 bytes at (R13) have
-	// already been used: four bytes for the link register saved in the
-	// prelude of poly1305_auth_armv6, four bytes for saving the value of g
-	// in that function and 16 bytes of scratch space used around
-	// poly1305_finish_ext_armv6_skip1.
-	ADD     $24, R13, R12
-	MOVM.IB [R4-R8, R14], (R12)
-	MOVW    R0, 88(R13)
-	MOVW    R1, 92(R13)
-	MOVW    R2, 96(R13)
-	MOVW    R1, R14
-	MOVW    R2, R12
-	MOVW    56(R0), R8
-	WORD    $0xe1180008                // TST R8, R8 not working see issue 5921
-	EOR     R6, R6, R6
-	MOVW.EQ $(1<<24), R6
-	MOVW    R6, 84(R13)
-	ADD     $116, R13, g
-	MOVM.IA (R0), [R0-R9]
-	MOVM.IA [R0-R4], (g)
-	CMP     $16, R12
-	BLO     poly1305_blocks_armv6_done
-
-poly1305_blocks_armv6_mainloop:
-	WORD    $0xe31e0003                            // TST R14, #3 not working see issue 5921
-	BEQ     poly1305_blocks_armv6_mainloop_aligned
-	ADD     $100, R13, g
-	MOVW_UNALIGNED(R14, g, R0, 0)
-	MOVW_UNALIGNED(R14, g, R0, 4)
-	MOVW_UNALIGNED(R14, g, R0, 8)
-	MOVW_UNALIGNED(R14, g, R0, 12)
-	MOVM.IA (g), [R0-R3]
-	ADD     $16, R14
-	B       poly1305_blocks_armv6_mainloop_loaded
-
-poly1305_blocks_armv6_mainloop_aligned:
-	MOVM.IA.W (R14), [R0-R3]
-
-poly1305_blocks_armv6_mainloop_loaded:
-	MOVW    R0>>26, g
-	MOVW    R1>>20, R11
-	MOVW    R2>>14, R12
-	MOVW    R14, 92(R13)
-	MOVW    R3>>8, R4
-	ORR     R1<<6, g, g
-	ORR     R2<<12, R11, R11
-	ORR     R3<<18, R12, R12
-	BIC     $0xfc000000, R0, R0
-	BIC     $0xfc000000, g, g
-	MOVW    84(R13), R3
-	BIC     $0xfc000000, R11, R11
-	BIC     $0xfc000000, R12, R12
-	ADD     R0, R5, R5
-	ADD     g, R6, R6
-	ORR     R3, R4, R4
-	ADD     R11, R7, R7
-	ADD     $116, R13, R14
-	ADD     R12, R8, R8
-	ADD     R4, R9, R9
-	MOVM.IA (R14), [R0-R4]
-	MULLU   R4, R5, (R11, g)
-	MULLU   R3, R5, (R14, R12)
-	MULALU  R3, R6, (R11, g)
-	MULALU  R2, R6, (R14, R12)
-	MULALU  R2, R7, (R11, g)
-	MULALU  R1, R7, (R14, R12)
-	ADD     R4<<2, R4, R4
-	ADD     R3<<2, R3, R3
-	MULALU  R1, R8, (R11, g)
-	MULALU  R0, R8, (R14, R12)
-	MULALU  R0, R9, (R11, g)
-	MULALU  R4, R9, (R14, R12)
-	MOVW    g, 76(R13)
-	MOVW    R11, 80(R13)
-	MOVW    R12, 68(R13)
-	MOVW    R14, 72(R13)
-	MULLU   R2, R5, (R11, g)
-	MULLU   R1, R5, (R14, R12)
-	MULALU  R1, R6, (R11, g)
-	MULALU  R0, R6, (R14, R12)
-	MULALU  R0, R7, (R11, g)
-	MULALU  R4, R7, (R14, R12)
-	ADD     R2<<2, R2, R2
-	ADD     R1<<2, R1, R1
-	MULALU  R4, R8, (R11, g)
-	MULALU  R3, R8, (R14, R12)
-	MULALU  R3, R9, (R11, g)
-	MULALU  R2, R9, (R14, R12)
-	MOVW    g, 60(R13)
-	MOVW    R11, 64(R13)
-	MOVW    R12, 52(R13)
-	MOVW    R14, 56(R13)
-	MULLU   R0, R5, (R11, g)
-	MULALU  R4, R6, (R11, g)
-	MULALU  R3, R7, (R11, g)
-	MULALU  R2, R8, (R11, g)
-	MULALU  R1, R9, (R11, g)
-	ADD     $52, R13, R0
-	MOVM.IA (R0), [R0-R7]
-	MOVW    g>>26, R12
-	MOVW    R4>>26, R14
-	ORR     R11<<6, R12, R12
-	ORR     R5<<6, R14, R14
-	BIC     $0xfc000000, g, g
-	BIC     $0xfc000000, R4, R4
-	ADD.S   R12, R0, R0
-	ADC     $0, R1, R1
-	ADD.S   R14, R6, R6
-	ADC     $0, R7, R7
-	MOVW    R0>>26, R12
-	MOVW    R6>>26, R14
-	ORR     R1<<6, R12, R12
-	ORR     R7<<6, R14, R14
-	BIC     $0xfc000000, R0, R0
-	BIC     $0xfc000000, R6, R6
-	ADD     R14<<2, R14, R14
-	ADD.S   R12, R2, R2
-	ADC     $0, R3, R3
-	ADD     R14, g, g
-	MOVW    R2>>26, R12
-	MOVW    g>>26, R14
-	ORR     R3<<6, R12, R12
-	BIC     $0xfc000000, g, R5
-	BIC     $0xfc000000, R2, R7
-	ADD     R12, R4, R4
-	ADD     R14, R0, R0
-	MOVW    R4>>26, R12
-	BIC     $0xfc000000, R4, R8
-	ADD     R12, R6, R9
-	MOVW    96(R13), R12
-	MOVW    92(R13), R14
-	MOVW    R0, R6
-	CMP     $32, R12
-	SUB     $16, R12, R12
-	MOVW    R12, 96(R13)
-	BHS     poly1305_blocks_armv6_mainloop
-
-poly1305_blocks_armv6_done:
-	MOVW    88(R13), R12
-	MOVW    R5, 20(R12)
-	MOVW    R6, 24(R12)
-	MOVW    R7, 28(R12)
-	MOVW    R8, 32(R12)
-	MOVW    R9, 36(R12)
-	ADD     $48, R13, R0
-	MOVM.DA (R0), [R4-R8, R14]
-	RET
-
-#define MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp) \
-	MOVBU.P 1(Rsrc), Rtmp; \
-	MOVBU.P Rtmp, 1(Rdst); \
-	MOVBU.P 1(Rsrc), Rtmp; \
-	MOVBU.P Rtmp, 1(Rdst)
-
-#define MOVWP_UNALIGNED(Rsrc, Rdst, Rtmp) \
-	MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp); \
-	MOVHUP_UNALIGNED(Rsrc, Rdst, Rtmp)
-
-// func poly1305_auth_armv6(out *[16]byte, m *byte, mlen uint32, key *[32]key)
-TEXT ·poly1305_auth_armv6(SB), $196-16
-	// The value 196, just above, is the sum of 64 (the size of the context
-	// structure) and 132 (the amount of stack needed).
-	//
-	// At this point, the stack pointer (R13) has been moved down. It
-	// points to the saved link register and there's 196 bytes of free
-	// space above it.
-	//
-	// The stack for this function looks like:
-	//
-	// +---------------------
-	// |
-	// | 64 bytes of context structure
-	// |
-	// +---------------------
-	// |
-	// | 112 bytes for poly1305_blocks_armv6
-	// |
-	// +---------------------
-	// | 16 bytes of final block, constructed at
-	// | poly1305_finish_ext_armv6_skip8
-	// +---------------------
-	// | four bytes of saved 'g'
-	// +---------------------
-	// | lr, saved by prelude    <- R13 points here
-	// +---------------------
-	MOVW g, 4(R13)
-
-	MOVW out+0(FP), R4
-	MOVW m+4(FP), R5
-	MOVW mlen+8(FP), R6
-	MOVW key+12(FP), R7
-
-	ADD  $136, R13, R0 // 136 = 4 + 4 + 16 + 112
-	MOVW R7, R1
-
-	// poly1305_init_ext_armv6 will write to the stack from R13+4, but
-	// that's ok because none of the other values have been written yet.
-	BL    poly1305_init_ext_armv6<>(SB)
-	BIC.S $15, R6, R2
-	BEQ   poly1305_auth_armv6_noblocks
-	ADD   $136, R13, R0
-	MOVW  R5, R1
-	ADD   R2, R5, R5
-	SUB   R2, R6, R6
-	BL    poly1305_blocks_armv6<>(SB)
-
-poly1305_auth_armv6_noblocks:
-	ADD  $136, R13, R0
-	MOVW R5, R1
-	MOVW R6, R2
-	MOVW R4, R3
-
-	MOVW  R0, R5
-	MOVW  R1, R6
-	MOVW  R2, R7
-	MOVW  R3, R8
-	AND.S R2, R2, R2
-	BEQ   poly1305_finish_ext_armv6_noremaining
-	EOR   R0, R0
-	ADD   $8, R13, R9                           // 8 = offset to 16 byte scratch space
-	MOVW  R0, (R9)
-	MOVW  R0, 4(R9)
-	MOVW  R0, 8(R9)
-	MOVW  R0, 12(R9)
-	WORD  $0xe3110003                           // TST R1, #3 not working see issue 5921
-	BEQ   poly1305_finish_ext_armv6_aligned
-	WORD  $0xe3120008                           // TST R2, #8 not working see issue 5921
-	BEQ   poly1305_finish_ext_armv6_skip8
-	MOVWP_UNALIGNED(R1, R9, g)
-	MOVWP_UNALIGNED(R1, R9, g)
-
-poly1305_finish_ext_armv6_skip8:
-	WORD $0xe3120004                     // TST $4, R2 not working see issue 5921
-	BEQ  poly1305_finish_ext_armv6_skip4
-	MOVWP_UNALIGNED(R1, R9, g)
-
-poly1305_finish_ext_armv6_skip4:
-	WORD $0xe3120002                     // TST $2, R2 not working see issue 5921
-	BEQ  poly1305_finish_ext_armv6_skip2
-	MOVHUP_UNALIGNED(R1, R9, g)
-	B    poly1305_finish_ext_armv6_skip2
-
-poly1305_finish_ext_armv6_aligned:
-	WORD      $0xe3120008                             // TST R2, #8 not working see issue 5921
-	BEQ       poly1305_finish_ext_armv6_skip8_aligned
-	MOVM.IA.W (R1), [g-R11]
-	MOVM.IA.W [g-R11], (R9)
-
-poly1305_finish_ext_armv6_skip8_aligned:
-	WORD   $0xe3120004                             // TST $4, R2 not working see issue 5921
-	BEQ    poly1305_finish_ext_armv6_skip4_aligned
-	MOVW.P 4(R1), g
-	MOVW.P g, 4(R9)
-
-poly1305_finish_ext_armv6_skip4_aligned:
-	WORD    $0xe3120002                     // TST $2, R2 not working see issue 5921
-	BEQ     poly1305_finish_ext_armv6_skip2
-	MOVHU.P 2(R1), g
-	MOVH.P  g, 2(R9)
-
-poly1305_finish_ext_armv6_skip2:
-	WORD    $0xe3120001                     // TST $1, R2 not working see issue 5921
-	BEQ     poly1305_finish_ext_armv6_skip1
-	MOVBU.P 1(R1), g
-	MOVBU.P g, 1(R9)
-
-poly1305_finish_ext_armv6_skip1:
-	MOVW  $1, R11
-	MOVBU R11, 0(R9)
-	MOVW  R11, 56(R5)
-	MOVW  R5, R0
-	ADD   $8, R13, R1
-	MOVW  $16, R2
-	BL    poly1305_blocks_armv6<>(SB)
-
-poly1305_finish_ext_armv6_noremaining:
-	MOVW      20(R5), R0
-	MOVW      24(R5), R1
-	MOVW      28(R5), R2
-	MOVW      32(R5), R3
-	MOVW      36(R5), R4
-	MOVW      R4>>26, R12
-	BIC       $0xfc000000, R4, R4
-	ADD       R12<<2, R12, R12
-	ADD       R12, R0, R0
-	MOVW      R0>>26, R12
-	BIC       $0xfc000000, R0, R0
-	ADD       R12, R1, R1
-	MOVW      R1>>26, R12
-	BIC       $0xfc000000, R1, R1
-	ADD       R12, R2, R2
-	MOVW      R2>>26, R12
-	BIC       $0xfc000000, R2, R2
-	ADD       R12, R3, R3
-	MOVW      R3>>26, R12
-	BIC       $0xfc000000, R3, R3
-	ADD       R12, R4, R4
-	ADD       $5, R0, R6
-	MOVW      R6>>26, R12
-	BIC       $0xfc000000, R6, R6
-	ADD       R12, R1, R7
-	MOVW      R7>>26, R12
-	BIC       $0xfc000000, R7, R7
-	ADD       R12, R2, g
-	MOVW      g>>26, R12
-	BIC       $0xfc000000, g, g
-	ADD       R12, R3, R11
-	MOVW      $-(1<<26), R12
-	ADD       R11>>26, R12, R12
-	BIC       $0xfc000000, R11, R11
-	ADD       R12, R4, R9
-	MOVW      R9>>31, R12
-	SUB       $1, R12
-	AND       R12, R6, R6
-	AND       R12, R7, R7
-	AND       R12, g, g
-	AND       R12, R11, R11
-	AND       R12, R9, R9
-	MVN       R12, R12
-	AND       R12, R0, R0
-	AND       R12, R1, R1
-	AND       R12, R2, R2
-	AND       R12, R3, R3
-	AND       R12, R4, R4
-	ORR       R6, R0, R0
-	ORR       R7, R1, R1
-	ORR       g, R2, R2
-	ORR       R11, R3, R3
-	ORR       R9, R4, R4
-	ORR       R1<<26, R0, R0
-	MOVW      R1>>6, R1
-	ORR       R2<<20, R1, R1
-	MOVW      R2>>12, R2
-	ORR       R3<<14, R2, R2
-	MOVW      R3>>18, R3
-	ORR       R4<<8, R3, R3
-	MOVW      40(R5), R6
-	MOVW      44(R5), R7
-	MOVW      48(R5), g
-	MOVW      52(R5), R11
-	ADD.S     R6, R0, R0
-	ADC.S     R7, R1, R1
-	ADC.S     g, R2, R2
-	ADC.S     R11, R3, R3
-	MOVM.IA   [R0-R3], (R8)
-	MOVW      R5, R12
-	EOR       R0, R0, R0
-	EOR       R1, R1, R1
-	EOR       R2, R2, R2
-	EOR       R3, R3, R3
-	EOR       R4, R4, R4
-	EOR       R5, R5, R5
-	EOR       R6, R6, R6
-	EOR       R7, R7, R7
-	MOVM.IA.W [R0-R7], (R12)
-	MOVM.IA   [R0-R7], (R12)
-	MOVW      4(R13), g
-	RET
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_noasm.go b/vendor/golang.org/x/crypto/poly1305/sum_noasm.go
deleted file mode 100644
index 751eec5..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_noasm.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,!go1.11 !arm,!amd64,!s390x gccgo appengine nacl
-
-package poly1305
-
-// Sum generates an authenticator for msg using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[TagSize]byte, msg []byte, key *[32]byte) {
-	sumGeneric(out, msg, key)
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_ref.go b/vendor/golang.org/x/crypto/poly1305/sum_ref.go
deleted file mode 100644
index c4d59bd..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_ref.go
+++ /dev/null
@@ -1,139 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package poly1305
-
-import "encoding/binary"
-
-// sumGeneric generates an authenticator for msg using a one-time key and
-// puts the 16-byte result into out. This is the generic implementation of
-// Sum and should be called if no assembly implementation is available.
-func sumGeneric(out *[TagSize]byte, msg []byte, key *[32]byte) {
-	var (
-		h0, h1, h2, h3, h4 uint32 // the hash accumulators
-		r0, r1, r2, r3, r4 uint64 // the r part of the key
-	)
-
-	r0 = uint64(binary.LittleEndian.Uint32(key[0:]) & 0x3ffffff)
-	r1 = uint64((binary.LittleEndian.Uint32(key[3:]) >> 2) & 0x3ffff03)
-	r2 = uint64((binary.LittleEndian.Uint32(key[6:]) >> 4) & 0x3ffc0ff)
-	r3 = uint64((binary.LittleEndian.Uint32(key[9:]) >> 6) & 0x3f03fff)
-	r4 = uint64((binary.LittleEndian.Uint32(key[12:]) >> 8) & 0x00fffff)
-
-	R1, R2, R3, R4 := r1*5, r2*5, r3*5, r4*5
-
-	for len(msg) >= TagSize {
-		// h += msg
-		h0 += binary.LittleEndian.Uint32(msg[0:]) & 0x3ffffff
-		h1 += (binary.LittleEndian.Uint32(msg[3:]) >> 2) & 0x3ffffff
-		h2 += (binary.LittleEndian.Uint32(msg[6:]) >> 4) & 0x3ffffff
-		h3 += (binary.LittleEndian.Uint32(msg[9:]) >> 6) & 0x3ffffff
-		h4 += (binary.LittleEndian.Uint32(msg[12:]) >> 8) | (1 << 24)
-
-		// h *= r
-		d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1)
-		d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2)
-		d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3)
-		d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4)
-		d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0)
-
-		// h %= p
-		h0 = uint32(d0) & 0x3ffffff
-		h1 = uint32(d1) & 0x3ffffff
-		h2 = uint32(d2) & 0x3ffffff
-		h3 = uint32(d3) & 0x3ffffff
-		h4 = uint32(d4) & 0x3ffffff
-
-		h0 += uint32(d4>>26) * 5
-		h1 += h0 >> 26
-		h0 = h0 & 0x3ffffff
-
-		msg = msg[TagSize:]
-	}
-
-	if len(msg) > 0 {
-		var block [TagSize]byte
-		off := copy(block[:], msg)
-		block[off] = 0x01
-
-		// h += msg
-		h0 += binary.LittleEndian.Uint32(block[0:]) & 0x3ffffff
-		h1 += (binary.LittleEndian.Uint32(block[3:]) >> 2) & 0x3ffffff
-		h2 += (binary.LittleEndian.Uint32(block[6:]) >> 4) & 0x3ffffff
-		h3 += (binary.LittleEndian.Uint32(block[9:]) >> 6) & 0x3ffffff
-		h4 += (binary.LittleEndian.Uint32(block[12:]) >> 8)
-
-		// h *= r
-		d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1)
-		d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2)
-		d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3)
-		d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4)
-		d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0)
-
-		// h %= p
-		h0 = uint32(d0) & 0x3ffffff
-		h1 = uint32(d1) & 0x3ffffff
-		h2 = uint32(d2) & 0x3ffffff
-		h3 = uint32(d3) & 0x3ffffff
-		h4 = uint32(d4) & 0x3ffffff
-
-		h0 += uint32(d4>>26) * 5
-		h1 += h0 >> 26
-		h0 = h0 & 0x3ffffff
-	}
-
-	// h %= p reduction
-	h2 += h1 >> 26
-	h1 &= 0x3ffffff
-	h3 += h2 >> 26
-	h2 &= 0x3ffffff
-	h4 += h3 >> 26
-	h3 &= 0x3ffffff
-	h0 += 5 * (h4 >> 26)
-	h4 &= 0x3ffffff
-	h1 += h0 >> 26
-	h0 &= 0x3ffffff
-
-	// h - p
-	t0 := h0 + 5
-	t1 := h1 + (t0 >> 26)
-	t2 := h2 + (t1 >> 26)
-	t3 := h3 + (t2 >> 26)
-	t4 := h4 + (t3 >> 26) - (1 << 26)
-	t0 &= 0x3ffffff
-	t1 &= 0x3ffffff
-	t2 &= 0x3ffffff
-	t3 &= 0x3ffffff
-
-	// select h if h < p else h - p
-	t_mask := (t4 >> 31) - 1
-	h_mask := ^t_mask
-	h0 = (h0 & h_mask) | (t0 & t_mask)
-	h1 = (h1 & h_mask) | (t1 & t_mask)
-	h2 = (h2 & h_mask) | (t2 & t_mask)
-	h3 = (h3 & h_mask) | (t3 & t_mask)
-	h4 = (h4 & h_mask) | (t4 & t_mask)
-
-	// h %= 2^128
-	h0 |= h1 << 26
-	h1 = ((h1 >> 6) | (h2 << 20))
-	h2 = ((h2 >> 12) | (h3 << 14))
-	h3 = ((h3 >> 18) | (h4 << 8))
-
-	// s: the s part of the key
-	// tag = (h + s) % (2^128)
-	t := uint64(h0) + uint64(binary.LittleEndian.Uint32(key[16:]))
-	h0 = uint32(t)
-	t = uint64(h1) + uint64(binary.LittleEndian.Uint32(key[20:])) + (t >> 32)
-	h1 = uint32(t)
-	t = uint64(h2) + uint64(binary.LittleEndian.Uint32(key[24:])) + (t >> 32)
-	h2 = uint32(t)
-	t = uint64(h3) + uint64(binary.LittleEndian.Uint32(key[28:])) + (t >> 32)
-	h3 = uint32(t)
-
-	binary.LittleEndian.PutUint32(out[0:], h0)
-	binary.LittleEndian.PutUint32(out[4:], h1)
-	binary.LittleEndian.PutUint32(out[8:], h2)
-	binary.LittleEndian.PutUint32(out[12:], h3)
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go
deleted file mode 100644
index 7a266ce..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,go1.11,!gccgo,!appengine
-
-package poly1305
-
-// hasVectorFacility reports whether the machine supports
-// the vector facility (vx).
-func hasVectorFacility() bool
-
-// hasVMSLFacility reports whether the machine supports
-// Vector Multiply Sum Logical (VMSL).
-func hasVMSLFacility() bool
-
-var hasVX = hasVectorFacility()
-var hasVMSL = hasVMSLFacility()
-
-// poly1305vx is an assembly implementation of Poly1305 that uses vector
-// instructions. It must only be called if the vector facility (vx) is
-// available.
-//go:noescape
-func poly1305vx(out *[16]byte, m *byte, mlen uint64, key *[32]byte)
-
-// poly1305vmsl is an assembly implementation of Poly1305 that uses vector
-// instructions, including VMSL. It must only be called if the vector facility (vx) is
-// available and if VMSL is supported.
-//go:noescape
-func poly1305vmsl(out *[16]byte, m *byte, mlen uint64, key *[32]byte)
-
-// Sum generates an authenticator for m using a one-time key and puts the
-// 16-byte result into out. Authenticating two different messages with the same
-// key allows an attacker to forge messages at will.
-func Sum(out *[16]byte, m []byte, key *[32]byte) {
-	if hasVX {
-		var mPtr *byte
-		if len(m) > 0 {
-			mPtr = &m[0]
-		}
-		if hasVMSL && len(m) > 256 {
-			poly1305vmsl(out, mPtr, uint64(len(m)), key)
-		} else {
-			poly1305vx(out, mPtr, uint64(len(m)), key)
-		}
-	} else {
-		sumGeneric(out, m, key)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s b/vendor/golang.org/x/crypto/poly1305/sum_s390x.s
deleted file mode 100644
index 356c07a..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s
+++ /dev/null
@@ -1,400 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,go1.11,!gccgo,!appengine
-
-#include "textflag.h"
-
-// Implementation of Poly1305 using the vector facility (vx).
-
-// constants
-#define MOD26 V0
-#define EX0   V1
-#define EX1   V2
-#define EX2   V3
-
-// temporaries
-#define T_0 V4
-#define T_1 V5
-#define T_2 V6
-#define T_3 V7
-#define T_4 V8
-
-// key (r)
-#define R_0  V9
-#define R_1  V10
-#define R_2  V11
-#define R_3  V12
-#define R_4  V13
-#define R5_1 V14
-#define R5_2 V15
-#define R5_3 V16
-#define R5_4 V17
-#define RSAVE_0 R5
-#define RSAVE_1 R6
-#define RSAVE_2 R7
-#define RSAVE_3 R8
-#define RSAVE_4 R9
-#define R5SAVE_1 V28
-#define R5SAVE_2 V29
-#define R5SAVE_3 V30
-#define R5SAVE_4 V31
-
-// message block
-#define F_0 V18
-#define F_1 V19
-#define F_2 V20
-#define F_3 V21
-#define F_4 V22
-
-// accumulator
-#define H_0 V23
-#define H_1 V24
-#define H_2 V25
-#define H_3 V26
-#define H_4 V27
-
-GLOBL ·keyMask<>(SB), RODATA, $16
-DATA ·keyMask<>+0(SB)/8, $0xffffff0ffcffff0f
-DATA ·keyMask<>+8(SB)/8, $0xfcffff0ffcffff0f
-
-GLOBL ·bswapMask<>(SB), RODATA, $16
-DATA ·bswapMask<>+0(SB)/8, $0x0f0e0d0c0b0a0908
-DATA ·bswapMask<>+8(SB)/8, $0x0706050403020100
-
-GLOBL ·constants<>(SB), RODATA, $64
-// MOD26
-DATA ·constants<>+0(SB)/8, $0x3ffffff
-DATA ·constants<>+8(SB)/8, $0x3ffffff
-// EX0
-DATA ·constants<>+16(SB)/8, $0x0006050403020100
-DATA ·constants<>+24(SB)/8, $0x1016151413121110
-// EX1
-DATA ·constants<>+32(SB)/8, $0x060c0b0a09080706
-DATA ·constants<>+40(SB)/8, $0x161c1b1a19181716
-// EX2
-DATA ·constants<>+48(SB)/8, $0x0d0d0d0d0d0f0e0d
-DATA ·constants<>+56(SB)/8, $0x1d1d1d1d1d1f1e1d
-
-// h = (f*g) % (2**130-5) [partial reduction]
-#define MULTIPLY(f0, f1, f2, f3, f4, g0, g1, g2, g3, g4, g51, g52, g53, g54, h0, h1, h2, h3, h4) \
-	VMLOF  f0, g0, h0        \
-	VMLOF  f0, g1, h1        \
-	VMLOF  f0, g2, h2        \
-	VMLOF  f0, g3, h3        \
-	VMLOF  f0, g4, h4        \
-	VMLOF  f1, g54, T_0      \
-	VMLOF  f1, g0, T_1       \
-	VMLOF  f1, g1, T_2       \
-	VMLOF  f1, g2, T_3       \
-	VMLOF  f1, g3, T_4       \
-	VMALOF f2, g53, h0, h0   \
-	VMALOF f2, g54, h1, h1   \
-	VMALOF f2, g0, h2, h2    \
-	VMALOF f2, g1, h3, h3    \
-	VMALOF f2, g2, h4, h4    \
-	VMALOF f3, g52, T_0, T_0 \
-	VMALOF f3, g53, T_1, T_1 \
-	VMALOF f3, g54, T_2, T_2 \
-	VMALOF f3, g0, T_3, T_3  \
-	VMALOF f3, g1, T_4, T_4  \
-	VMALOF f4, g51, h0, h0   \
-	VMALOF f4, g52, h1, h1   \
-	VMALOF f4, g53, h2, h2   \
-	VMALOF f4, g54, h3, h3   \
-	VMALOF f4, g0, h4, h4    \
-	VAG    T_0, h0, h0       \
-	VAG    T_1, h1, h1       \
-	VAG    T_2, h2, h2       \
-	VAG    T_3, h3, h3       \
-	VAG    T_4, h4, h4
-
-// carry h0->h1 h3->h4, h1->h2 h4->h0, h0->h1 h2->h3, h3->h4
-#define REDUCE(h0, h1, h2, h3, h4) \
-	VESRLG $26, h0, T_0  \
-	VESRLG $26, h3, T_1  \
-	VN     MOD26, h0, h0 \
-	VN     MOD26, h3, h3 \
-	VAG    T_0, h1, h1   \
-	VAG    T_1, h4, h4   \
-	VESRLG $26, h1, T_2  \
-	VESRLG $26, h4, T_3  \
-	VN     MOD26, h1, h1 \
-	VN     MOD26, h4, h4 \
-	VESLG  $2, T_3, T_4  \
-	VAG    T_3, T_4, T_4 \
-	VAG    T_2, h2, h2   \
-	VAG    T_4, h0, h0   \
-	VESRLG $26, h2, T_0  \
-	VESRLG $26, h0, T_1  \
-	VN     MOD26, h2, h2 \
-	VN     MOD26, h0, h0 \
-	VAG    T_0, h3, h3   \
-	VAG    T_1, h1, h1   \
-	VESRLG $26, h3, T_2  \
-	VN     MOD26, h3, h3 \
-	VAG    T_2, h4, h4
-
-// expand in0 into d[0] and in1 into d[1]
-#define EXPAND(in0, in1, d0, d1, d2, d3, d4) \
-	VGBM   $0x0707, d1       \ // d1=tmp
-	VPERM  in0, in1, EX2, d4 \
-	VPERM  in0, in1, EX0, d0 \
-	VPERM  in0, in1, EX1, d2 \
-	VN     d1, d4, d4        \
-	VESRLG $26, d0, d1       \
-	VESRLG $30, d2, d3       \
-	VESRLG $4, d2, d2        \
-	VN     MOD26, d0, d0     \
-	VN     MOD26, d1, d1     \
-	VN     MOD26, d2, d2     \
-	VN     MOD26, d3, d3
-
-// pack h4:h0 into h1:h0 (no carry)
-#define PACK(h0, h1, h2, h3, h4) \
-	VESLG $26, h1, h1  \
-	VESLG $26, h3, h3  \
-	VO    h0, h1, h0   \
-	VO    h2, h3, h2   \
-	VESLG $4, h2, h2   \
-	VLEIB $7, $48, h1  \
-	VSLB  h1, h2, h2   \
-	VO    h0, h2, h0   \
-	VLEIB $7, $104, h1 \
-	VSLB  h1, h4, h3   \
-	VO    h3, h0, h0   \
-	VLEIB $7, $24, h1  \
-	VSRLB h1, h4, h1
-
-// if h > 2**130-5 then h -= 2**130-5
-#define MOD(h0, h1, t0, t1, t2) \
-	VZERO t0          \
-	VLEIG $1, $5, t0  \
-	VACCQ h0, t0, t1  \
-	VAQ   h0, t0, t0  \
-	VONE  t2          \
-	VLEIG $1, $-4, t2 \
-	VAQ   t2, t1, t1  \
-	VACCQ h1, t1, t1  \
-	VONE  t2          \
-	VAQ   t2, t1, t1  \
-	VN    h0, t1, t2  \
-	VNC   t0, t1, t1  \
-	VO    t1, t2, h0
-
-// func poly1305vx(out *[16]byte, m *byte, mlen uint64, key *[32]key)
-TEXT ·poly1305vx(SB), $0-32
-	// This code processes up to 2 blocks (32 bytes) per iteration
-	// using the algorithm described in:
-	// NEON crypto, Daniel J. Bernstein & Peter Schwabe
-	// https://cryptojedi.org/papers/neoncrypto-20120320.pdf
-	LMG out+0(FP), R1, R4 // R1=out, R2=m, R3=mlen, R4=key
-
-	// load MOD26, EX0, EX1 and EX2
-	MOVD $·constants<>(SB), R5
-	VLM  (R5), MOD26, EX2
-
-	// setup r
-	VL   (R4), T_0
-	MOVD $·keyMask<>(SB), R6
-	VL   (R6), T_1
-	VN   T_0, T_1, T_0
-	EXPAND(T_0, T_0, R_0, R_1, R_2, R_3, R_4)
-
-	// setup r*5
-	VLEIG $0, $5, T_0
-	VLEIG $1, $5, T_0
-
-	// store r (for final block)
-	VMLOF T_0, R_1, R5SAVE_1
-	VMLOF T_0, R_2, R5SAVE_2
-	VMLOF T_0, R_3, R5SAVE_3
-	VMLOF T_0, R_4, R5SAVE_4
-	VLGVG $0, R_0, RSAVE_0
-	VLGVG $0, R_1, RSAVE_1
-	VLGVG $0, R_2, RSAVE_2
-	VLGVG $0, R_3, RSAVE_3
-	VLGVG $0, R_4, RSAVE_4
-
-	// skip r**2 calculation
-	CMPBLE R3, $16, skip
-
-	// calculate r**2
-	MULTIPLY(R_0, R_1, R_2, R_3, R_4, R_0, R_1, R_2, R_3, R_4, R5SAVE_1, R5SAVE_2, R5SAVE_3, R5SAVE_4, H_0, H_1, H_2, H_3, H_4)
-	REDUCE(H_0, H_1, H_2, H_3, H_4)
-	VLEIG $0, $5, T_0
-	VLEIG $1, $5, T_0
-	VMLOF T_0, H_1, R5_1
-	VMLOF T_0, H_2, R5_2
-	VMLOF T_0, H_3, R5_3
-	VMLOF T_0, H_4, R5_4
-	VLR   H_0, R_0
-	VLR   H_1, R_1
-	VLR   H_2, R_2
-	VLR   H_3, R_3
-	VLR   H_4, R_4
-
-	// initialize h
-	VZERO H_0
-	VZERO H_1
-	VZERO H_2
-	VZERO H_3
-	VZERO H_4
-
-loop:
-	CMPBLE R3, $32, b2
-	VLM    (R2), T_0, T_1
-	SUB    $32, R3
-	MOVD   $32(R2), R2
-	EXPAND(T_0, T_1, F_0, F_1, F_2, F_3, F_4)
-	VLEIB  $4, $1, F_4
-	VLEIB  $12, $1, F_4
-
-multiply:
-	VAG    H_0, F_0, F_0
-	VAG    H_1, F_1, F_1
-	VAG    H_2, F_2, F_2
-	VAG    H_3, F_3, F_3
-	VAG    H_4, F_4, F_4
-	MULTIPLY(F_0, F_1, F_2, F_3, F_4, R_0, R_1, R_2, R_3, R_4, R5_1, R5_2, R5_3, R5_4, H_0, H_1, H_2, H_3, H_4)
-	REDUCE(H_0, H_1, H_2, H_3, H_4)
-	CMPBNE R3, $0, loop
-
-finish:
-	// sum vectors
-	VZERO  T_0
-	VSUMQG H_0, T_0, H_0
-	VSUMQG H_1, T_0, H_1
-	VSUMQG H_2, T_0, H_2
-	VSUMQG H_3, T_0, H_3
-	VSUMQG H_4, T_0, H_4
-
-	// h may be >= 2*(2**130-5) so we need to reduce it again
-	REDUCE(H_0, H_1, H_2, H_3, H_4)
-
-	// carry h1->h4
-	VESRLG $26, H_1, T_1
-	VN     MOD26, H_1, H_1
-	VAQ    T_1, H_2, H_2
-	VESRLG $26, H_2, T_2
-	VN     MOD26, H_2, H_2
-	VAQ    T_2, H_3, H_3
-	VESRLG $26, H_3, T_3
-	VN     MOD26, H_3, H_3
-	VAQ    T_3, H_4, H_4
-
-	// h is now < 2*(2**130-5)
-	// pack h into h1 (hi) and h0 (lo)
-	PACK(H_0, H_1, H_2, H_3, H_4)
-
-	// if h > 2**130-5 then h -= 2**130-5
-	MOD(H_0, H_1, T_0, T_1, T_2)
-
-	// h += s
-	MOVD  $·bswapMask<>(SB), R5
-	VL    (R5), T_1
-	VL    16(R4), T_0
-	VPERM T_0, T_0, T_1, T_0    // reverse bytes (to big)
-	VAQ   T_0, H_0, H_0
-	VPERM H_0, H_0, T_1, H_0    // reverse bytes (to little)
-	VST   H_0, (R1)
-
-	RET
-
-b2:
-	CMPBLE R3, $16, b1
-
-	// 2 blocks remaining
-	SUB    $17, R3
-	VL     (R2), T_0
-	VLL    R3, 16(R2), T_1
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, T_1
-	EXPAND(T_0, T_1, F_0, F_1, F_2, F_3, F_4)
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $12, $1, F_4
-	VLEIB  $4, $1, F_4
-
-	// setup [r²,r]
-	VLVGG $1, RSAVE_0, R_0
-	VLVGG $1, RSAVE_1, R_1
-	VLVGG $1, RSAVE_2, R_2
-	VLVGG $1, RSAVE_3, R_3
-	VLVGG $1, RSAVE_4, R_4
-	VPDI  $0, R5_1, R5SAVE_1, R5_1
-	VPDI  $0, R5_2, R5SAVE_2, R5_2
-	VPDI  $0, R5_3, R5SAVE_3, R5_3
-	VPDI  $0, R5_4, R5SAVE_4, R5_4
-
-	MOVD $0, R3
-	BR   multiply
-
-skip:
-	VZERO H_0
-	VZERO H_1
-	VZERO H_2
-	VZERO H_3
-	VZERO H_4
-
-	CMPBEQ R3, $0, finish
-
-b1:
-	// 1 block remaining
-	SUB    $1, R3
-	VLL    R3, (R2), T_0
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, T_0
-	VZERO  T_1
-	EXPAND(T_0, T_1, F_0, F_1, F_2, F_3, F_4)
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $4, $1, F_4
-	VLEIG  $1, $1, R_0
-	VZERO  R_1
-	VZERO  R_2
-	VZERO  R_3
-	VZERO  R_4
-	VZERO  R5_1
-	VZERO  R5_2
-	VZERO  R5_3
-	VZERO  R5_4
-
-	// setup [r, 1]
-	VLVGG $0, RSAVE_0, R_0
-	VLVGG $0, RSAVE_1, R_1
-	VLVGG $0, RSAVE_2, R_2
-	VLVGG $0, RSAVE_3, R_3
-	VLVGG $0, RSAVE_4, R_4
-	VPDI  $0, R5SAVE_1, R5_1, R5_1
-	VPDI  $0, R5SAVE_2, R5_2, R5_2
-	VPDI  $0, R5SAVE_3, R5_3, R5_3
-	VPDI  $0, R5SAVE_4, R5_4, R5_4
-
-	MOVD $0, R3
-	BR   multiply
-
-TEXT ·hasVectorFacility(SB), NOSPLIT, $24-1
-	MOVD  $x-24(SP), R1
-	XC    $24, 0(R1), 0(R1) // clear the storage
-	MOVD  $2, R0            // R0 is the number of double words stored -1
-	WORD  $0xB2B01000       // STFLE 0(R1)
-	XOR   R0, R0            // reset the value of R0
-	MOVBZ z-8(SP), R1
-	AND   $0x40, R1
-	BEQ   novector
-
-vectorinstalled:
-	// check if the vector instruction has been enabled
-	VLEIB  $0, $0xF, V16
-	VLGVB  $0, V16, R1
-	CMPBNE R1, $0xF, novector
-	MOVB   $1, ret+0(FP)      // have vx
-	RET
-
-novector:
-	MOVB $0, ret+0(FP) // no vx
-	RET
diff --git a/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s b/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s
deleted file mode 100644
index e548020..0000000
--- a/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s
+++ /dev/null
@@ -1,931 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build s390x,go1.11,!gccgo,!appengine
-
-#include "textflag.h"
-
-// Implementation of Poly1305 using the vector facility (vx) and the VMSL instruction.
-
-// constants
-#define EX0   V1
-#define EX1   V2
-#define EX2   V3
-
-// temporaries
-#define T_0 V4
-#define T_1 V5
-#define T_2 V6
-#define T_3 V7
-#define T_4 V8
-#define T_5 V9
-#define T_6 V10
-#define T_7 V11
-#define T_8 V12
-#define T_9 V13
-#define T_10 V14
-
-// r**2 & r**4
-#define R_0  V15
-#define R_1  V16
-#define R_2  V17
-#define R5_1 V18
-#define R5_2 V19
-// key (r)
-#define RSAVE_0 R7
-#define RSAVE_1 R8
-#define RSAVE_2 R9
-#define R5SAVE_1 R10
-#define R5SAVE_2 R11
-
-// message block
-#define M0 V20
-#define M1 V21
-#define M2 V22
-#define M3 V23
-#define M4 V24
-#define M5 V25
-
-// accumulator
-#define H0_0 V26
-#define H1_0 V27
-#define H2_0 V28
-#define H0_1 V29
-#define H1_1 V30
-#define H2_1 V31
-
-GLOBL ·keyMask<>(SB), RODATA, $16
-DATA ·keyMask<>+0(SB)/8, $0xffffff0ffcffff0f
-DATA ·keyMask<>+8(SB)/8, $0xfcffff0ffcffff0f
-
-GLOBL ·bswapMask<>(SB), RODATA, $16
-DATA ·bswapMask<>+0(SB)/8, $0x0f0e0d0c0b0a0908
-DATA ·bswapMask<>+8(SB)/8, $0x0706050403020100
-
-GLOBL ·constants<>(SB), RODATA, $48
-// EX0
-DATA ·constants<>+0(SB)/8, $0x18191a1b1c1d1e1f
-DATA ·constants<>+8(SB)/8, $0x0000050403020100
-// EX1
-DATA ·constants<>+16(SB)/8, $0x18191a1b1c1d1e1f
-DATA ·constants<>+24(SB)/8, $0x00000a0908070605
-// EX2
-DATA ·constants<>+32(SB)/8, $0x18191a1b1c1d1e1f
-DATA ·constants<>+40(SB)/8, $0x0000000f0e0d0c0b
-
-GLOBL ·c<>(SB), RODATA, $48
-// EX0
-DATA ·c<>+0(SB)/8, $0x0000050403020100
-DATA ·c<>+8(SB)/8, $0x0000151413121110
-// EX1
-DATA ·c<>+16(SB)/8, $0x00000a0908070605
-DATA ·c<>+24(SB)/8, $0x00001a1918171615
-// EX2
-DATA ·c<>+32(SB)/8, $0x0000000f0e0d0c0b
-DATA ·c<>+40(SB)/8, $0x0000001f1e1d1c1b
-
-GLOBL ·reduce<>(SB), RODATA, $32
-// 44 bit
-DATA ·reduce<>+0(SB)/8, $0x0
-DATA ·reduce<>+8(SB)/8, $0xfffffffffff
-// 42 bit
-DATA ·reduce<>+16(SB)/8, $0x0
-DATA ·reduce<>+24(SB)/8, $0x3ffffffffff
-
-// h = (f*g) % (2**130-5) [partial reduction]
-// uses T_0...T_9 temporary registers
-// input: m02_0, m02_1, m02_2, m13_0, m13_1, m13_2, r_0, r_1, r_2, r5_1, r5_2, m4_0, m4_1, m4_2, m5_0, m5_1, m5_2
-// temp: t0, t1, t2, t3, t4, t5, t6, t7, t8, t9
-// output: m02_0, m02_1, m02_2, m13_0, m13_1, m13_2
-#define MULTIPLY(m02_0, m02_1, m02_2, m13_0, m13_1, m13_2, r_0, r_1, r_2, r5_1, r5_2, m4_0, m4_1, m4_2, m5_0, m5_1, m5_2, t0, t1, t2, t3, t4, t5, t6, t7, t8, t9) \
-	\ // Eliminate the dependency for the last 2 VMSLs
-	VMSLG m02_0, r_2, m4_2, m4_2                       \
-	VMSLG m13_0, r_2, m5_2, m5_2                       \ // 8 VMSLs pipelined
-	VMSLG m02_0, r_0, m4_0, m4_0                       \
-	VMSLG m02_1, r5_2, V0, T_0                         \
-	VMSLG m02_0, r_1, m4_1, m4_1                       \
-	VMSLG m02_1, r_0, V0, T_1                          \
-	VMSLG m02_1, r_1, V0, T_2                          \
-	VMSLG m02_2, r5_1, V0, T_3                         \
-	VMSLG m02_2, r5_2, V0, T_4                         \
-	VMSLG m13_0, r_0, m5_0, m5_0                       \
-	VMSLG m13_1, r5_2, V0, T_5                         \
-	VMSLG m13_0, r_1, m5_1, m5_1                       \
-	VMSLG m13_1, r_0, V0, T_6                          \
-	VMSLG m13_1, r_1, V0, T_7                          \
-	VMSLG m13_2, r5_1, V0, T_8                         \
-	VMSLG m13_2, r5_2, V0, T_9                         \
-	VMSLG m02_2, r_0, m4_2, m4_2                       \
-	VMSLG m13_2, r_0, m5_2, m5_2                       \
-	VAQ   m4_0, T_0, m02_0                             \
-	VAQ   m4_1, T_1, m02_1                             \
-	VAQ   m5_0, T_5, m13_0                             \
-	VAQ   m5_1, T_6, m13_1                             \
-	VAQ   m02_0, T_3, m02_0                            \
-	VAQ   m02_1, T_4, m02_1                            \
-	VAQ   m13_0, T_8, m13_0                            \
-	VAQ   m13_1, T_9, m13_1                            \
-	VAQ   m4_2, T_2, m02_2                             \
-	VAQ   m5_2, T_7, m13_2                             \
-
-// SQUARE uses three limbs of r and r_2*5 to output square of r
-// uses T_1, T_5 and T_7 temporary registers
-// input: r_0, r_1, r_2, r5_2
-// temp: TEMP0, TEMP1, TEMP2
-// output: p0, p1, p2
-#define SQUARE(r_0, r_1, r_2, r5_2, p0, p1, p2, TEMP0, TEMP1, TEMP2) \
-	VMSLG r_0, r_0, p0, p0     \
-	VMSLG r_1, r5_2, V0, TEMP0 \
-	VMSLG r_2, r5_2, p1, p1    \
-	VMSLG r_0, r_1, V0, TEMP1  \
-	VMSLG r_1, r_1, p2, p2     \
-	VMSLG r_0, r_2, V0, TEMP2  \
-	VAQ   TEMP0, p0, p0        \
-	VAQ   TEMP1, p1, p1        \
-	VAQ   TEMP2, p2, p2        \
-	VAQ   TEMP0, p0, p0        \
-	VAQ   TEMP1, p1, p1        \
-	VAQ   TEMP2, p2, p2        \
-
-// carry h0->h1->h2->h0 || h3->h4->h5->h3
-// uses T_2, T_4, T_5, T_7, T_8, T_9
-//       t6,  t7,  t8,  t9, t10, t11
-// input: h0, h1, h2, h3, h4, h5
-// temp: t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11
-// output: h0, h1, h2, h3, h4, h5
-#define REDUCE(h0, h1, h2, h3, h4, h5, t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11) \
-	VLM    (R12), t6, t7  \ // 44 and 42 bit clear mask
-	VLEIB  $7, $0x28, t10 \ // 5 byte shift mask
-	VREPIB $4, t8         \ // 4 bit shift mask
-	VREPIB $2, t11        \ // 2 bit shift mask
-	VSRLB  t10, h0, t0    \ // h0 byte shift
-	VSRLB  t10, h1, t1    \ // h1 byte shift
-	VSRLB  t10, h2, t2    \ // h2 byte shift
-	VSRLB  t10, h3, t3    \ // h3 byte shift
-	VSRLB  t10, h4, t4    \ // h4 byte shift
-	VSRLB  t10, h5, t5    \ // h5 byte shift
-	VSRL   t8, t0, t0     \ // h0 bit shift
-	VSRL   t8, t1, t1     \ // h2 bit shift
-	VSRL   t11, t2, t2    \ // h2 bit shift
-	VSRL   t8, t3, t3     \ // h3 bit shift
-	VSRL   t8, t4, t4     \ // h4 bit shift
-	VESLG  $2, t2, t9     \ // h2 carry x5
-	VSRL   t11, t5, t5    \ // h5 bit shift
-	VN     t6, h0, h0     \ // h0 clear carry
-	VAQ    t2, t9, t2     \ // h2 carry x5
-	VESLG  $2, t5, t9     \ // h5 carry x5
-	VN     t6, h1, h1     \ // h1 clear carry
-	VN     t7, h2, h2     \ // h2 clear carry
-	VAQ    t5, t9, t5     \ // h5 carry x5
-	VN     t6, h3, h3     \ // h3 clear carry
-	VN     t6, h4, h4     \ // h4 clear carry
-	VN     t7, h5, h5     \ // h5 clear carry
-	VAQ    t0, h1, h1     \ // h0->h1
-	VAQ    t3, h4, h4     \ // h3->h4
-	VAQ    t1, h2, h2     \ // h1->h2
-	VAQ    t4, h5, h5     \ // h4->h5
-	VAQ    t2, h0, h0     \ // h2->h0
-	VAQ    t5, h3, h3     \ // h5->h3
-	VREPG  $1, t6, t6     \ // 44 and 42 bit masks across both halves
-	VREPG  $1, t7, t7     \
-	VSLDB  $8, h0, h0, h0 \ // set up [h0/1/2, h3/4/5]
-	VSLDB  $8, h1, h1, h1 \
-	VSLDB  $8, h2, h2, h2 \
-	VO     h0, h3, h3     \
-	VO     h1, h4, h4     \
-	VO     h2, h5, h5     \
-	VESRLG $44, h3, t0    \ // 44 bit shift right
-	VESRLG $44, h4, t1    \
-	VESRLG $42, h5, t2    \
-	VN     t6, h3, h3     \ // clear carry bits
-	VN     t6, h4, h4     \
-	VN     t7, h5, h5     \
-	VESLG  $2, t2, t9     \ // multiply carry by 5
-	VAQ    t9, t2, t2     \
-	VAQ    t0, h4, h4     \
-	VAQ    t1, h5, h5     \
-	VAQ    t2, h3, h3     \
-
-// carry h0->h1->h2->h0
-// input: h0, h1, h2
-// temp: t0, t1, t2, t3, t4, t5, t6, t7, t8
-// output: h0, h1, h2
-#define REDUCE2(h0, h1, h2, t0, t1, t2, t3, t4, t5, t6, t7, t8) \
-	VLEIB  $7, $0x28, t3 \ // 5 byte shift mask
-	VREPIB $4, t4        \ // 4 bit shift mask
-	VREPIB $2, t7        \ // 2 bit shift mask
-	VGBM   $0x003F, t5   \ // mask to clear carry bits
-	VSRLB  t3, h0, t0    \
-	VSRLB  t3, h1, t1    \
-	VSRLB  t3, h2, t2    \
-	VESRLG $4, t5, t5    \ // 44 bit clear mask
-	VSRL   t4, t0, t0    \
-	VSRL   t4, t1, t1    \
-	VSRL   t7, t2, t2    \
-	VESRLG $2, t5, t6    \ // 42 bit clear mask
-	VESLG  $2, t2, t8    \
-	VAQ    t8, t2, t2    \
-	VN     t5, h0, h0    \
-	VN     t5, h1, h1    \
-	VN     t6, h2, h2    \
-	VAQ    t0, h1, h1    \
-	VAQ    t1, h2, h2    \
-	VAQ    t2, h0, h0    \
-	VSRLB  t3, h0, t0    \
-	VSRLB  t3, h1, t1    \
-	VSRLB  t3, h2, t2    \
-	VSRL   t4, t0, t0    \
-	VSRL   t4, t1, t1    \
-	VSRL   t7, t2, t2    \
-	VN     t5, h0, h0    \
-	VN     t5, h1, h1    \
-	VESLG  $2, t2, t8    \
-	VN     t6, h2, h2    \
-	VAQ    t0, h1, h1    \
-	VAQ    t8, t2, t2    \
-	VAQ    t1, h2, h2    \
-	VAQ    t2, h0, h0    \
-
-// expands two message blocks into the lower halfs of the d registers
-// moves the contents of the d registers into upper halfs
-// input: in1, in2, d0, d1, d2, d3, d4, d5
-// temp: TEMP0, TEMP1, TEMP2, TEMP3
-// output: d0, d1, d2, d3, d4, d5
-#define EXPACC(in1, in2, d0, d1, d2, d3, d4, d5, TEMP0, TEMP1, TEMP2, TEMP3) \
-	VGBM   $0xff3f, TEMP0      \
-	VGBM   $0xff1f, TEMP1      \
-	VESLG  $4, d1, TEMP2       \
-	VESLG  $4, d4, TEMP3       \
-	VESRLG $4, TEMP0, TEMP0    \
-	VPERM  in1, d0, EX0, d0    \
-	VPERM  in2, d3, EX0, d3    \
-	VPERM  in1, d2, EX2, d2    \
-	VPERM  in2, d5, EX2, d5    \
-	VPERM  in1, TEMP2, EX1, d1 \
-	VPERM  in2, TEMP3, EX1, d4 \
-	VN     TEMP0, d0, d0       \
-	VN     TEMP0, d3, d3       \
-	VESRLG $4, d1, d1          \
-	VESRLG $4, d4, d4          \
-	VN     TEMP1, d2, d2       \
-	VN     TEMP1, d5, d5       \
-	VN     TEMP0, d1, d1       \
-	VN     TEMP0, d4, d4       \
-
-// expands one message block into the lower halfs of the d registers
-// moves the contents of the d registers into upper halfs
-// input: in, d0, d1, d2
-// temp: TEMP0, TEMP1, TEMP2
-// output: d0, d1, d2
-#define EXPACC2(in, d0, d1, d2, TEMP0, TEMP1, TEMP2) \
-	VGBM   $0xff3f, TEMP0     \
-	VESLG  $4, d1, TEMP2      \
-	VGBM   $0xff1f, TEMP1     \
-	VPERM  in, d0, EX0, d0    \
-	VESRLG $4, TEMP0, TEMP0   \
-	VPERM  in, d2, EX2, d2    \
-	VPERM  in, TEMP2, EX1, d1 \
-	VN     TEMP0, d0, d0      \
-	VN     TEMP1, d2, d2      \
-	VESRLG $4, d1, d1         \
-	VN     TEMP0, d1, d1      \
-
-// pack h2:h0 into h1:h0 (no carry)
-// input: h0, h1, h2
-// output: h0, h1, h2
-#define PACK(h0, h1, h2) \
-	VMRLG  h1, h2, h2  \ // copy h1 to upper half h2
-	VESLG  $44, h1, h1 \ // shift limb 1 44 bits, leaving 20
-	VO     h0, h1, h0  \ // combine h0 with 20 bits from limb 1
-	VESRLG $20, h2, h1 \ // put top 24 bits of limb 1 into h1
-	VLEIG  $1, $0, h1  \ // clear h2 stuff from lower half of h1
-	VO     h0, h1, h0  \ // h0 now has 88 bits (limb 0 and 1)
-	VLEIG  $0, $0, h2  \ // clear upper half of h2
-	VESRLG $40, h2, h1 \ // h1 now has upper two bits of result
-	VLEIB  $7, $88, h1 \ // for byte shift (11 bytes)
-	VSLB   h1, h2, h2  \ // shift h2 11 bytes to the left
-	VO     h0, h2, h0  \ // combine h0 with 20 bits from limb 1
-	VLEIG  $0, $0, h1  \ // clear upper half of h1
-
-// if h > 2**130-5 then h -= 2**130-5
-// input: h0, h1
-// temp: t0, t1, t2
-// output: h0
-#define MOD(h0, h1, t0, t1, t2) \
-	VZERO t0          \
-	VLEIG $1, $5, t0  \
-	VACCQ h0, t0, t1  \
-	VAQ   h0, t0, t0  \
-	VONE  t2          \
-	VLEIG $1, $-4, t2 \
-	VAQ   t2, t1, t1  \
-	VACCQ h1, t1, t1  \
-	VONE  t2          \
-	VAQ   t2, t1, t1  \
-	VN    h0, t1, t2  \
-	VNC   t0, t1, t1  \
-	VO    t1, t2, h0  \
-
-// func poly1305vmsl(out *[16]byte, m *byte, mlen uint64, key *[32]key)
-TEXT ·poly1305vmsl(SB), $0-32
-	// This code processes 6 + up to 4 blocks (32 bytes) per iteration
-	// using the algorithm described in:
-	// NEON crypto, Daniel J. Bernstein & Peter Schwabe
-	// https://cryptojedi.org/papers/neoncrypto-20120320.pdf
-	// And as moddified for VMSL as described in
-	// Accelerating Poly1305 Cryptographic Message Authentication on the z14
-	// O'Farrell et al, CASCON 2017, p48-55
-	// https://ibm.ent.box.com/s/jf9gedj0e9d2vjctfyh186shaztavnht
-
-	LMG   out+0(FP), R1, R4 // R1=out, R2=m, R3=mlen, R4=key
-	VZERO V0                // c
-
-	// load EX0, EX1 and EX2
-	MOVD $·constants<>(SB), R5
-	VLM  (R5), EX0, EX2        // c
-
-	// setup r
-	VL    (R4), T_0
-	MOVD  $·keyMask<>(SB), R6
-	VL    (R6), T_1
-	VN    T_0, T_1, T_0
-	VZERO T_2                 // limbs for r
-	VZERO T_3
-	VZERO T_4
-	EXPACC2(T_0, T_2, T_3, T_4, T_1, T_5, T_7)
-
-	// T_2, T_3, T_4: [0, r]
-
-	// setup r*20
-	VLEIG $0, $0, T_0
-	VLEIG $1, $20, T_0       // T_0: [0, 20]
-	VZERO T_5
-	VZERO T_6
-	VMSLG T_0, T_3, T_5, T_5
-	VMSLG T_0, T_4, T_6, T_6
-
-	// store r for final block in GR
-	VLGVG $1, T_2, RSAVE_0  // c
-	VLGVG $1, T_3, RSAVE_1  // c
-	VLGVG $1, T_4, RSAVE_2  // c
-	VLGVG $1, T_5, R5SAVE_1 // c
-	VLGVG $1, T_6, R5SAVE_2 // c
-
-	// initialize h
-	VZERO H0_0
-	VZERO H1_0
-	VZERO H2_0
-	VZERO H0_1
-	VZERO H1_1
-	VZERO H2_1
-
-	// initialize pointer for reduce constants
-	MOVD $·reduce<>(SB), R12
-
-	// calculate r**2 and 20*(r**2)
-	VZERO R_0
-	VZERO R_1
-	VZERO R_2
-	SQUARE(T_2, T_3, T_4, T_6, R_0, R_1, R_2, T_1, T_5, T_7)
-	REDUCE2(R_0, R_1, R_2, M0, M1, M2, M3, M4, R5_1, R5_2, M5, T_1)
-	VZERO R5_1
-	VZERO R5_2
-	VMSLG T_0, R_1, R5_1, R5_1
-	VMSLG T_0, R_2, R5_2, R5_2
-
-	// skip r**4 calculation if 3 blocks or less
-	CMPBLE R3, $48, b4
-
-	// calculate r**4 and 20*(r**4)
-	VZERO T_8
-	VZERO T_9
-	VZERO T_10
-	SQUARE(R_0, R_1, R_2, R5_2, T_8, T_9, T_10, T_1, T_5, T_7)
-	REDUCE2(T_8, T_9, T_10, M0, M1, M2, M3, M4, T_2, T_3, M5, T_1)
-	VZERO T_2
-	VZERO T_3
-	VMSLG T_0, T_9, T_2, T_2
-	VMSLG T_0, T_10, T_3, T_3
-
-	// put r**2 to the right and r**4 to the left of R_0, R_1, R_2
-	VSLDB $8, T_8, T_8, T_8
-	VSLDB $8, T_9, T_9, T_9
-	VSLDB $8, T_10, T_10, T_10
-	VSLDB $8, T_2, T_2, T_2
-	VSLDB $8, T_3, T_3, T_3
-
-	VO T_8, R_0, R_0
-	VO T_9, R_1, R_1
-	VO T_10, R_2, R_2
-	VO T_2, R5_1, R5_1
-	VO T_3, R5_2, R5_2
-
-	CMPBLE R3, $80, load // less than or equal to 5 blocks in message
-
-	// 6(or 5+1) blocks
-	SUB    $81, R3
-	VLM    (R2), M0, M4
-	VLL    R3, 80(R2), M5
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBGE R3, $16, 2(PC)
-	VLVGB  R3, R0, M5
-	MOVD   $96(R2), R2
-	EXPACC(M0, M1, H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_0, T_1, T_2, T_3)
-	EXPACC(M2, M3, H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_0, T_1, T_2, T_3)
-	VLEIB  $2, $1, H2_0
-	VLEIB  $2, $1, H2_1
-	VLEIB  $10, $1, H2_0
-	VLEIB  $10, $1, H2_1
-
-	VZERO  M0
-	VZERO  M1
-	VZERO  M2
-	VZERO  M3
-	VZERO  T_4
-	VZERO  T_10
-	EXPACC(M4, M5, M0, M1, M2, M3, T_4, T_10, T_0, T_1, T_2, T_3)
-	VLR    T_4, M4
-	VLEIB  $10, $1, M2
-	CMPBLT R3, $16, 2(PC)
-	VLEIB  $10, $1, T_10
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, T_10, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, M2, M3, M4, T_4, T_5, T_2, T_7, T_8, T_9)
-	VMRHG  V0, H0_1, H0_0
-	VMRHG  V0, H1_1, H1_0
-	VMRHG  V0, H2_1, H2_0
-	VMRLG  V0, H0_1, H0_1
-	VMRLG  V0, H1_1, H1_1
-	VMRLG  V0, H2_1, H2_1
-
-	SUB    $16, R3
-	CMPBLE R3, $0, square
-
-load:
-	// load EX0, EX1 and EX2
-	MOVD $·c<>(SB), R5
-	VLM  (R5), EX0, EX2
-
-loop:
-	CMPBLE R3, $64, add // b4	// last 4 or less blocks left
-
-	// next 4 full blocks
-	VLM  (R2), M2, M5
-	SUB  $64, R3
-	MOVD $64(R2), R2
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, T_0, T_1, T_3, T_4, T_5, T_2, T_7, T_8, T_9)
-
-	// expacc in-lined to create [m2, m3] limbs
-	VGBM   $0x3f3f, T_0     // 44 bit clear mask
-	VGBM   $0x1f1f, T_1     // 40 bit clear mask
-	VPERM  M2, M3, EX0, T_3
-	VESRLG $4, T_0, T_0     // 44 bit clear mask ready
-	VPERM  M2, M3, EX1, T_4
-	VPERM  M2, M3, EX2, T_5
-	VN     T_0, T_3, T_3
-	VESRLG $4, T_4, T_4
-	VN     T_1, T_5, T_5
-	VN     T_0, T_4, T_4
-	VMRHG  H0_1, T_3, H0_0
-	VMRHG  H1_1, T_4, H1_0
-	VMRHG  H2_1, T_5, H2_0
-	VMRLG  H0_1, T_3, H0_1
-	VMRLG  H1_1, T_4, H1_1
-	VMRLG  H2_1, T_5, H2_1
-	VLEIB  $10, $1, H2_0
-	VLEIB  $10, $1, H2_1
-	VPERM  M4, M5, EX0, T_3
-	VPERM  M4, M5, EX1, T_4
-	VPERM  M4, M5, EX2, T_5
-	VN     T_0, T_3, T_3
-	VESRLG $4, T_4, T_4
-	VN     T_1, T_5, T_5
-	VN     T_0, T_4, T_4
-	VMRHG  V0, T_3, M0
-	VMRHG  V0, T_4, M1
-	VMRHG  V0, T_5, M2
-	VMRLG  V0, T_3, M3
-	VMRLG  V0, T_4, M4
-	VMRLG  V0, T_5, M5
-	VLEIB  $10, $1, M2
-	VLEIB  $10, $1, M5
-
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	CMPBNE R3, $0, loop
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, M3, M4, M5, T_4, T_5, T_2, T_7, T_8, T_9)
-	VMRHG  V0, H0_1, H0_0
-	VMRHG  V0, H1_1, H1_0
-	VMRHG  V0, H2_1, H2_0
-	VMRLG  V0, H0_1, H0_1
-	VMRLG  V0, H1_1, H1_1
-	VMRLG  V0, H2_1, H2_1
-
-	// load EX0, EX1, EX2
-	MOVD $·constants<>(SB), R5
-	VLM  (R5), EX0, EX2
-
-	// sum vectors
-	VAQ H0_0, H0_1, H0_0
-	VAQ H1_0, H1_1, H1_0
-	VAQ H2_0, H2_1, H2_0
-
-	// h may be >= 2*(2**130-5) so we need to reduce it again
-	// M0...M4 are used as temps here
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, T_9, T_10, H0_1, M5)
-
-next:  // carry h1->h2
-	VLEIB  $7, $0x28, T_1
-	VREPIB $4, T_2
-	VGBM   $0x003F, T_3
-	VESRLG $4, T_3
-
-	// byte shift
-	VSRLB T_1, H1_0, T_4
-
-	// bit shift
-	VSRL T_2, T_4, T_4
-
-	// clear h1 carry bits
-	VN T_3, H1_0, H1_0
-
-	// add carry
-	VAQ T_4, H2_0, H2_0
-
-	// h is now < 2*(2**130-5)
-	// pack h into h1 (hi) and h0 (lo)
-	PACK(H0_0, H1_0, H2_0)
-
-	// if h > 2**130-5 then h -= 2**130-5
-	MOD(H0_0, H1_0, T_0, T_1, T_2)
-
-	// h += s
-	MOVD  $·bswapMask<>(SB), R5
-	VL    (R5), T_1
-	VL    16(R4), T_0
-	VPERM T_0, T_0, T_1, T_0    // reverse bytes (to big)
-	VAQ   T_0, H0_0, H0_0
-	VPERM H0_0, H0_0, T_1, H0_0 // reverse bytes (to little)
-	VST   H0_0, (R1)
-	RET
-
-add:
-	// load EX0, EX1, EX2
-	MOVD $·constants<>(SB), R5
-	VLM  (R5), EX0, EX2
-
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, M3, M4, M5, T_4, T_5, T_2, T_7, T_8, T_9)
-	VMRHG  V0, H0_1, H0_0
-	VMRHG  V0, H1_1, H1_0
-	VMRHG  V0, H2_1, H2_0
-	VMRLG  V0, H0_1, H0_1
-	VMRLG  V0, H1_1, H1_1
-	VMRLG  V0, H2_1, H2_1
-	CMPBLE R3, $64, b4
-
-b4:
-	CMPBLE R3, $48, b3 // 3 blocks or less
-
-	// 4(3+1) blocks remaining
-	SUB    $49, R3
-	VLM    (R2), M0, M2
-	VLL    R3, 48(R2), M3
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, M3
-	MOVD   $64(R2), R2
-	EXPACC(M0, M1, H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_0, T_1, T_2, T_3)
-	VLEIB  $10, $1, H2_0
-	VLEIB  $10, $1, H2_1
-	VZERO  M0
-	VZERO  M1
-	VZERO  M4
-	VZERO  M5
-	VZERO  T_4
-	VZERO  T_10
-	EXPACC(M2, M3, M0, M1, M4, M5, T_4, T_10, T_0, T_1, T_2, T_3)
-	VLR    T_4, M2
-	VLEIB  $10, $1, M4
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $10, $1, T_10
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M4, M5, M2, T_10, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, M3, M4, M5, T_4, T_5, T_2, T_7, T_8, T_9)
-	VMRHG  V0, H0_1, H0_0
-	VMRHG  V0, H1_1, H1_0
-	VMRHG  V0, H2_1, H2_0
-	VMRLG  V0, H0_1, H0_1
-	VMRLG  V0, H1_1, H1_1
-	VMRLG  V0, H2_1, H2_1
-	SUB    $16, R3
-	CMPBLE R3, $0, square // this condition must always hold true!
-
-b3:
-	CMPBLE R3, $32, b2
-
-	// 3 blocks remaining
-
-	// setup [r²,r]
-	VSLDB $8, R_0, R_0, R_0
-	VSLDB $8, R_1, R_1, R_1
-	VSLDB $8, R_2, R_2, R_2
-	VSLDB $8, R5_1, R5_1, R5_1
-	VSLDB $8, R5_2, R5_2, R5_2
-
-	VLVGG $1, RSAVE_0, R_0
-	VLVGG $1, RSAVE_1, R_1
-	VLVGG $1, RSAVE_2, R_2
-	VLVGG $1, R5SAVE_1, R5_1
-	VLVGG $1, R5SAVE_2, R5_2
-
-	// setup [h0, h1]
-	VSLDB $8, H0_0, H0_0, H0_0
-	VSLDB $8, H1_0, H1_0, H1_0
-	VSLDB $8, H2_0, H2_0, H2_0
-	VO    H0_1, H0_0, H0_0
-	VO    H1_1, H1_0, H1_0
-	VO    H2_1, H2_0, H2_0
-	VZERO H0_1
-	VZERO H1_1
-	VZERO H2_1
-
-	VZERO M0
-	VZERO M1
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-
-	// H*[r**2, r]
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, H0_1, H1_1, T_10, M5)
-
-	SUB    $33, R3
-	VLM    (R2), M0, M1
-	VLL    R3, 32(R2), M2
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, M2
-
-	// H += m0
-	VZERO T_1
-	VZERO T_2
-	VZERO T_3
-	EXPACC2(M0, T_1, T_2, T_3, T_4, T_5, T_6)
-	VLEIB $10, $1, T_3
-	VAG   H0_0, T_1, H0_0
-	VAG   H1_0, T_2, H1_0
-	VAG   H2_0, T_3, H2_0
-
-	VZERO M0
-	VZERO M3
-	VZERO M4
-	VZERO M5
-	VZERO T_10
-
-	// (H+m0)*r
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M3, M4, M5, V0, T_10, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M3, M4, M5, T_10, H0_1, H1_1, H2_1, T_9)
-
-	// H += m1
-	VZERO V0
-	VZERO T_1
-	VZERO T_2
-	VZERO T_3
-	EXPACC2(M1, T_1, T_2, T_3, T_4, T_5, T_6)
-	VLEIB $10, $1, T_3
-	VAQ   H0_0, T_1, H0_0
-	VAQ   H1_0, T_2, H1_0
-	VAQ   H2_0, T_3, H2_0
-	REDUCE2(H0_0, H1_0, H2_0, M0, M3, M4, M5, T_9, H0_1, H1_1, H2_1, T_10)
-
-	// [H, m2] * [r**2, r]
-	EXPACC2(M2, H0_0, H1_0, H2_0, T_1, T_2, T_3)
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $10, $1, H2_0
-	VZERO  M0
-	VZERO  M1
-	VZERO  M2
-	VZERO  M3
-	VZERO  M4
-	VZERO  M5
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, H0_1, H1_1, M5, T_10)
-	SUB    $16, R3
-	CMPBLE R3, $0, next   // this condition must always hold true!
-
-b2:
-	CMPBLE R3, $16, b1
-
-	// 2 blocks remaining
-
-	// setup [r²,r]
-	VSLDB $8, R_0, R_0, R_0
-	VSLDB $8, R_1, R_1, R_1
-	VSLDB $8, R_2, R_2, R_2
-	VSLDB $8, R5_1, R5_1, R5_1
-	VSLDB $8, R5_2, R5_2, R5_2
-
-	VLVGG $1, RSAVE_0, R_0
-	VLVGG $1, RSAVE_1, R_1
-	VLVGG $1, RSAVE_2, R_2
-	VLVGG $1, R5SAVE_1, R5_1
-	VLVGG $1, R5SAVE_2, R5_2
-
-	// setup [h0, h1]
-	VSLDB $8, H0_0, H0_0, H0_0
-	VSLDB $8, H1_0, H1_0, H1_0
-	VSLDB $8, H2_0, H2_0, H2_0
-	VO    H0_1, H0_0, H0_0
-	VO    H1_1, H1_0, H1_0
-	VO    H2_1, H2_0, H2_0
-	VZERO H0_1
-	VZERO H1_1
-	VZERO H2_1
-
-	VZERO M0
-	VZERO M1
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-
-	// H*[r**2, r]
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, T_10, M0, M1, M2, M3, M4, T_4, T_5, T_2, T_7, T_8, T_9)
-	VMRHG V0, H0_1, H0_0
-	VMRHG V0, H1_1, H1_0
-	VMRHG V0, H2_1, H2_0
-	VMRLG V0, H0_1, H0_1
-	VMRLG V0, H1_1, H1_1
-	VMRLG V0, H2_1, H2_1
-
-	// move h to the left and 0s at the right
-	VSLDB $8, H0_0, H0_0, H0_0
-	VSLDB $8, H1_0, H1_0, H1_0
-	VSLDB $8, H2_0, H2_0, H2_0
-
-	// get message blocks and append 1 to start
-	SUB    $17, R3
-	VL     (R2), M0
-	VLL    R3, 16(R2), M1
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, M1
-	VZERO  T_6
-	VZERO  T_7
-	VZERO  T_8
-	EXPACC2(M0, T_6, T_7, T_8, T_1, T_2, T_3)
-	EXPACC2(M1, T_6, T_7, T_8, T_1, T_2, T_3)
-	VLEIB  $2, $1, T_8
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $10, $1, T_8
-
-	// add [m0, m1] to h
-	VAG H0_0, T_6, H0_0
-	VAG H1_0, T_7, H1_0
-	VAG H2_0, T_8, H2_0
-
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-	VZERO T_10
-	VZERO M0
-
-	// at this point R_0 .. R5_2 look like [r**2, r]
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M2, M3, M4, M5, T_10, M0, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M2, M3, M4, M5, T_9, H0_1, H1_1, H2_1, T_10)
-	SUB    $16, R3, R3
-	CMPBLE R3, $0, next
-
-b1:
-	CMPBLE R3, $0, next
-
-	// 1 block remaining
-
-	// setup [r²,r]
-	VSLDB $8, R_0, R_0, R_0
-	VSLDB $8, R_1, R_1, R_1
-	VSLDB $8, R_2, R_2, R_2
-	VSLDB $8, R5_1, R5_1, R5_1
-	VSLDB $8, R5_2, R5_2, R5_2
-
-	VLVGG $1, RSAVE_0, R_0
-	VLVGG $1, RSAVE_1, R_1
-	VLVGG $1, RSAVE_2, R_2
-	VLVGG $1, R5SAVE_1, R5_1
-	VLVGG $1, R5SAVE_2, R5_2
-
-	// setup [h0, h1]
-	VSLDB $8, H0_0, H0_0, H0_0
-	VSLDB $8, H1_0, H1_0, H1_0
-	VSLDB $8, H2_0, H2_0, H2_0
-	VO    H0_1, H0_0, H0_0
-	VO    H1_1, H1_0, H1_0
-	VO    H2_1, H2_0, H2_0
-	VZERO H0_1
-	VZERO H1_1
-	VZERO H2_1
-
-	VZERO M0
-	VZERO M1
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-
-	// H*[r**2, r]
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, T_9, T_10, H0_1, M5)
-
-	// set up [0, m0] limbs
-	SUB    $1, R3
-	VLL    R3, (R2), M0
-	ADD    $1, R3
-	MOVBZ  $1, R0
-	CMPBEQ R3, $16, 2(PC)
-	VLVGB  R3, R0, M0
-	VZERO  T_1
-	VZERO  T_2
-	VZERO  T_3
-	EXPACC2(M0, T_1, T_2, T_3, T_4, T_5, T_6)// limbs: [0, m]
-	CMPBNE R3, $16, 2(PC)
-	VLEIB  $10, $1, T_3
-
-	// h+m0
-	VAQ H0_0, T_1, H0_0
-	VAQ H1_0, T_2, H1_0
-	VAQ H2_0, T_3, H2_0
-
-	VZERO M0
-	VZERO M1
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, T_9, T_10, H0_1, M5)
-
-	BR next
-
-square:
-	// setup [r²,r]
-	VSLDB $8, R_0, R_0, R_0
-	VSLDB $8, R_1, R_1, R_1
-	VSLDB $8, R_2, R_2, R_2
-	VSLDB $8, R5_1, R5_1, R5_1
-	VSLDB $8, R5_2, R5_2, R5_2
-
-	VLVGG $1, RSAVE_0, R_0
-	VLVGG $1, RSAVE_1, R_1
-	VLVGG $1, RSAVE_2, R_2
-	VLVGG $1, R5SAVE_1, R5_1
-	VLVGG $1, R5SAVE_2, R5_2
-
-	// setup [h0, h1]
-	VSLDB $8, H0_0, H0_0, H0_0
-	VSLDB $8, H1_0, H1_0, H1_0
-	VSLDB $8, H2_0, H2_0, H2_0
-	VO    H0_1, H0_0, H0_0
-	VO    H1_1, H1_0, H1_0
-	VO    H2_1, H2_0, H2_0
-	VZERO H0_1
-	VZERO H1_1
-	VZERO H2_1
-
-	VZERO M0
-	VZERO M1
-	VZERO M2
-	VZERO M3
-	VZERO M4
-	VZERO M5
-
-	// (h0*r**2) + (h1*r)
-	MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9)
-	REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, T_9, T_10, H0_1, M5)
-	BR next
-
-TEXT ·hasVMSLFacility(SB), NOSPLIT, $24-1
-	MOVD  $x-24(SP), R1
-	XC    $24, 0(R1), 0(R1) // clear the storage
-	MOVD  $2, R0            // R0 is the number of double words stored -1
-	WORD  $0xB2B01000       // STFLE 0(R1)
-	XOR   R0, R0            // reset the value of R0
-	MOVBZ z-8(SP), R1
-	AND   $0x01, R1
-	BEQ   novmsl
-
-vectorinstalled:
-	// check if the vector instruction has been enabled
-	VLEIB  $0, $0xF, V16
-	VLGVB  $0, V16, R1
-	CMPBNE R1, $0xF, novmsl
-	MOVB   $1, ret+0(FP)    // have vx
-	RET
-
-novmsl:
-	MOVB $0, ret+0(FP) // no vx
-	RET
diff --git a/vendor/golang.org/x/crypto/poly1305/vectors_test.go b/vendor/golang.org/x/crypto/poly1305/vectors_test.go
deleted file mode 100644
index 18d7ff8..0000000
--- a/vendor/golang.org/x/crypto/poly1305/vectors_test.go
+++ /dev/null
@@ -1,2943 +0,0 @@
-// Copyright 2018 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package poly1305
-
-var testData = [...]test{
-	// edge cases
-	{
-		// see https://go-review.googlesource.com/#/c/30101/
-		key: "3b3a29e93b213a5c5c3b3b053a3a8c0d00000000000000000000000000000000",
-		tag: "6dc18b8c344cd79927118bbe84b7f314",
-		in:  "81d8b2e46a25213b58fee4213a2a28e921c12a9632516d3b73272727becf2129",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "04000000000000000000000000000000", // (2¹³⁰-1) % (2¹³⁰-5)
-		in: "ffffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "faffffffffffffffffffffffffffffff", // (2¹³⁰-6) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (2¹³⁰-5) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "f9ffffffffffffffffffffffffffffff", // (2*(2¹³⁰-6)) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (2*(2¹³⁰-5)) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "f8ffffffffffffffffffffffffffffff", // (3*(2¹³⁰-6)) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (3*(2¹³⁰-5)) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "f7ffffffffffffffffffffffffffffff", // (4*(2¹³⁰-6)) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (4*(2¹³⁰-5)) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "f3ffffffffffffffffffffffffffffff", // (8*(2¹³⁰-6)) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (8*(2¹³⁰-5)) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "ebffffffffffffffffffffffffffffff", // (16*(2¹³⁰-6)) % (2¹³⁰-5)
-		in: "faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"faffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	{
-		key: "0100000000000000000000000000000000000000000000000000000000000000",
-		tag: "00000000000000000000000000000000", // (16*(2¹³⁰-5)) % (2¹³⁰-5)
-		in: "fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"fbffffffffffffffffffffffffffffff" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000" +
-			"00000000000000000000000000000000",
-	},
-	// original smoke tests
-	{
-		key: "746869732069732033322d62797465206b657920666f7220506f6c7931333035",
-		tag: "a6f745008f81c916a20dcc74eef2b2f0",
-		in:  "48656c6c6f20776f726c6421",
-	},
-	{
-		key: "746869732069732033322d62797465206b657920666f7220506f6c7931333035",
-		tag: "49ec78090e481ec6c26b33b91ccc0307",
-		in:  "0000000000000000000000000000000000000000000000000000000000000000",
-	},
-	{
-		key: "746869732069732033322d62797465206b657920666f7220506f6c7931333035",
-		tag: "da84bcab02676c38cdb015604274c2aa",
-		in: "000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
-			"000000000000000000000000000000000000000000000000000000000000" +
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-			"238141a6dc987a60385c3a04dd147a2f8e80dfe727b104c0fdd80b326f59" +
-			"0b9f86fd7b2fd1122a390979889eabd803ab57159c8509a1443eb6789382" +
-			"090a770ae4eba03306f96e50e19a7d44c584ccc230d104548946efca4520" +
-			"d61de5f473e2f4eada6c8ce9c7ee975eb4f63c0483cb775ed7d3cf690a61" +
-			"7d6656d683a8512707d81ca5ba176a42bcffcfa692129f292607d2a47536" +
-			"ccaeb464c9272d6f3816074b712af602470088b253deba18771e5f67734b" +
-			"587707cdd06f35264b2262fd253c25b5d38ee7db287610e5398062b7a34e" +
-			"6e4cf7447d00873b930ad148fd96f0ab18771bc468b874bb109924101c84" +
-			"c4e239ecc7687d875e4d94a1a973620ca61e35a872c2e2e61a502169f1bb" +
-			"4e5ff5fa2bff657be6195b3e2c7151a52fc0096d98e7f08f5a98f570aee1" +
-			"7b4275f1356e87e080ce0e1b9bbabe7dea48b5903bc390ce23472ad64a89" +
-			"41c3247bfd23ea90b2dee09085571bad85568040105e098f993bb37e43c3" +
-			"e6d511171c77cfc450570dfb9fc6a3930ef43c03f8213f6203d545d791c7" +
-			"d3fa42d5dde1655038d35c5dfacc12e9dee24fe833977549eda68ae8b508" +
-			"be277e743921b584f9dfa0eefbd8bf3c23f51efdef7f7487001d29e8097b" +
-			"ba63289cfca743023d1668555a46fe6d5b7421377414df1e9ef135480622" +
-			"22e2e9a7baa618d88f407517f6317b6a0ba3384ace16d68631d59ea169d5" +
-			"092d20afc1a481b82be5e734bb092953a0a94702bae1a0f48d2a22b9a05f" +
-			"f64493b7b2e984f27582b1eb937fddf8512c49830435d146dcc291a4118d" +
-			"5dc638b99cdcbcc5860de7a92c5b13cbd1e01e051f01af40afe124346320" +
-			"d3626bf9d8f7850744e032a993c276fd388718237740c6caf260fca60b8d" +
-			"d846102e3262b6e05ceca00c6affe938fac1847350865fc858d3ddd1d130" +
-			"71d1221ce7c5d575587fcba580e544b74d877ed5ca92763ef0ca0d7bfa08" +
-			"d57a0216b2a01a2b9ec74b8430051e0074862b7be25b6766ab520f2eb75d" +
-			"eeb979c28f03795f6f1e4b8410beab19a20febc91985b8a7c298534a6598" +
-			"f2c5b0dc5de9f5e55a97791507bc6373db26",
-	},
-}
diff --git a/vendor/golang.org/x/crypto/ripemd160/ripemd160.go b/vendor/golang.org/x/crypto/ripemd160/ripemd160.go
deleted file mode 100644
index 6c6e842..0000000
--- a/vendor/golang.org/x/crypto/ripemd160/ripemd160.go
+++ /dev/null
@@ -1,120 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package ripemd160 implements the RIPEMD-160 hash algorithm.
-package ripemd160 // import "golang.org/x/crypto/ripemd160"
-
-// RIPEMD-160 is designed by by Hans Dobbertin, Antoon Bosselaers, and Bart
-// Preneel with specifications available at:
-// http://homes.esat.kuleuven.be/~cosicart/pdf/AB-9601/AB-9601.pdf.
-
-import (
-	"crypto"
-	"hash"
-)
-
-func init() {
-	crypto.RegisterHash(crypto.RIPEMD160, New)
-}
-
-// The size of the checksum in bytes.
-const Size = 20
-
-// The block size of the hash algorithm in bytes.
-const BlockSize = 64
-
-const (
-	_s0 = 0x67452301
-	_s1 = 0xefcdab89
-	_s2 = 0x98badcfe
-	_s3 = 0x10325476
-	_s4 = 0xc3d2e1f0
-)
-
-// digest represents the partial evaluation of a checksum.
-type digest struct {
-	s  [5]uint32       // running context
-	x  [BlockSize]byte // temporary buffer
-	nx int             // index into x
-	tc uint64          // total count of bytes processed
-}
-
-func (d *digest) Reset() {
-	d.s[0], d.s[1], d.s[2], d.s[3], d.s[4] = _s0, _s1, _s2, _s3, _s4
-	d.nx = 0
-	d.tc = 0
-}
-
-// New returns a new hash.Hash computing the checksum.
-func New() hash.Hash {
-	result := new(digest)
-	result.Reset()
-	return result
-}
-
-func (d *digest) Size() int { return Size }
-
-func (d *digest) BlockSize() int { return BlockSize }
-
-func (d *digest) Write(p []byte) (nn int, err error) {
-	nn = len(p)
-	d.tc += uint64(nn)
-	if d.nx > 0 {
-		n := len(p)
-		if n > BlockSize-d.nx {
-			n = BlockSize - d.nx
-		}
-		for i := 0; i < n; i++ {
-			d.x[d.nx+i] = p[i]
-		}
-		d.nx += n
-		if d.nx == BlockSize {
-			_Block(d, d.x[0:])
-			d.nx = 0
-		}
-		p = p[n:]
-	}
-	n := _Block(d, p)
-	p = p[n:]
-	if len(p) > 0 {
-		d.nx = copy(d.x[:], p)
-	}
-	return
-}
-
-func (d0 *digest) Sum(in []byte) []byte {
-	// Make a copy of d0 so that caller can keep writing and summing.
-	d := *d0
-
-	// Padding.  Add a 1 bit and 0 bits until 56 bytes mod 64.
-	tc := d.tc
-	var tmp [64]byte
-	tmp[0] = 0x80
-	if tc%64 < 56 {
-		d.Write(tmp[0 : 56-tc%64])
-	} else {
-		d.Write(tmp[0 : 64+56-tc%64])
-	}
-
-	// Length in bits.
-	tc <<= 3
-	for i := uint(0); i < 8; i++ {
-		tmp[i] = byte(tc >> (8 * i))
-	}
-	d.Write(tmp[0:8])
-
-	if d.nx != 0 {
-		panic("d.nx != 0")
-	}
-
-	var digest [Size]byte
-	for i, s := range d.s {
-		digest[i*4] = byte(s)
-		digest[i*4+1] = byte(s >> 8)
-		digest[i*4+2] = byte(s >> 16)
-		digest[i*4+3] = byte(s >> 24)
-	}
-
-	return append(in, digest[:]...)
-}
diff --git a/vendor/golang.org/x/crypto/ripemd160/ripemd160_test.go b/vendor/golang.org/x/crypto/ripemd160/ripemd160_test.go
deleted file mode 100644
index a1fbffd..0000000
--- a/vendor/golang.org/x/crypto/ripemd160/ripemd160_test.go
+++ /dev/null
@@ -1,72 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ripemd160
-
-// Test vectors are from:
-// http://homes.esat.kuleuven.be/~bosselae/ripemd160.html
-
-import (
-	"fmt"
-	"io"
-	"testing"
-)
-
-type mdTest struct {
-	out string
-	in  string
-}
-
-var vectors = [...]mdTest{
-	{"9c1185a5c5e9fc54612808977ee8f548b2258d31", ""},
-	{"0bdc9d2d256b3ee9daae347be6f4dc835a467ffe", "a"},
-	{"8eb208f7e05d987a9b044a8e98c6b087f15a0bfc", "abc"},
-	{"5d0689ef49d2fae572b881b123a85ffa21595f36", "message digest"},
-	{"f71c27109c692c1b56bbdceb5b9d2865b3708dbc", "abcdefghijklmnopqrstuvwxyz"},
-	{"12a053384a9c0c88e405a06c27dcf49ada62eb2b", "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"},
-	{"b0e20b6e3116640286ed3a87a5713079b21f5189", "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"},
-	{"9b752e45573d4b39f4dbd3323cab82bf63326bfb", "12345678901234567890123456789012345678901234567890123456789012345678901234567890"},
-}
-
-func TestVectors(t *testing.T) {
-	for i := 0; i < len(vectors); i++ {
-		tv := vectors[i]
-		md := New()
-		for j := 0; j < 3; j++ {
-			if j < 2 {
-				io.WriteString(md, tv.in)
-			} else {
-				io.WriteString(md, tv.in[0:len(tv.in)/2])
-				md.Sum(nil)
-				io.WriteString(md, tv.in[len(tv.in)/2:])
-			}
-			s := fmt.Sprintf("%x", md.Sum(nil))
-			if s != tv.out {
-				t.Fatalf("RIPEMD-160[%d](%s) = %s, expected %s", j, tv.in, s, tv.out)
-			}
-			md.Reset()
-		}
-	}
-}
-
-func millionA() string {
-	md := New()
-	for i := 0; i < 100000; i++ {
-		io.WriteString(md, "aaaaaaaaaa")
-	}
-	return fmt.Sprintf("%x", md.Sum(nil))
-}
-
-func TestMillionA(t *testing.T) {
-	const out = "52783243c1697bdbe16d37f97f68f08325dc1528"
-	if s := millionA(); s != out {
-		t.Fatalf("RIPEMD-160 (1 million 'a') = %s, expected %s", s, out)
-	}
-}
-
-func BenchmarkMillionA(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		millionA()
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ripemd160/ripemd160block.go b/vendor/golang.org/x/crypto/ripemd160/ripemd160block.go
deleted file mode 100644
index e0edc02..0000000
--- a/vendor/golang.org/x/crypto/ripemd160/ripemd160block.go
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright 2010 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// RIPEMD-160 block step.
-// In its own file so that a faster assembly or C version
-// can be substituted easily.
-
-package ripemd160
-
-import (
-	"math/bits"
-)
-
-// work buffer indices and roll amounts for one line
-var _n = [80]uint{
-	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-	7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
-	3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
-	1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
-	4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13,
-}
-
-var _r = [80]uint{
-	11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
-	7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
-	11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
-	11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
-	9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6,
-}
-
-// same for the other parallel one
-var n_ = [80]uint{
-	5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
-	6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
-	15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
-	8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
-	12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11,
-}
-
-var r_ = [80]uint{
-	8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
-	9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
-	9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
-	15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
-	8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11,
-}
-
-func _Block(md *digest, p []byte) int {
-	n := 0
-	var x [16]uint32
-	var alpha, beta uint32
-	for len(p) >= BlockSize {
-		a, b, c, d, e := md.s[0], md.s[1], md.s[2], md.s[3], md.s[4]
-		aa, bb, cc, dd, ee := a, b, c, d, e
-		j := 0
-		for i := 0; i < 16; i++ {
-			x[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24
-			j += 4
-		}
-
-		// round 1
-		i := 0
-		for i < 16 {
-			alpha = a + (b ^ c ^ d) + x[_n[i]]
-			s := int(_r[i])
-			alpha = bits.RotateLeft32(alpha, s) + e
-			beta = bits.RotateLeft32(c, 10)
-			a, b, c, d, e = e, alpha, b, beta, d
-
-			// parallel line
-			alpha = aa + (bb ^ (cc | ^dd)) + x[n_[i]] + 0x50a28be6
-			s = int(r_[i])
-			alpha = bits.RotateLeft32(alpha, s) + ee
-			beta = bits.RotateLeft32(cc, 10)
-			aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
-
-			i++
-		}
-
-		// round 2
-		for i < 32 {
-			alpha = a + (b&c | ^b&d) + x[_n[i]] + 0x5a827999
-			s := int(_r[i])
-			alpha = bits.RotateLeft32(alpha, s) + e
-			beta = bits.RotateLeft32(c, 10)
-			a, b, c, d, e = e, alpha, b, beta, d
-
-			// parallel line
-			alpha = aa + (bb&dd | cc&^dd) + x[n_[i]] + 0x5c4dd124
-			s = int(r_[i])
-			alpha = bits.RotateLeft32(alpha, s) + ee
-			beta = bits.RotateLeft32(cc, 10)
-			aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
-
-			i++
-		}
-
-		// round 3
-		for i < 48 {
-			alpha = a + (b | ^c ^ d) + x[_n[i]] + 0x6ed9eba1
-			s := int(_r[i])
-			alpha = bits.RotateLeft32(alpha, s) + e
-			beta = bits.RotateLeft32(c, 10)
-			a, b, c, d, e = e, alpha, b, beta, d
-
-			// parallel line
-			alpha = aa + (bb | ^cc ^ dd) + x[n_[i]] + 0x6d703ef3
-			s = int(r_[i])
-			alpha = bits.RotateLeft32(alpha, s) + ee
-			beta = bits.RotateLeft32(cc, 10)
-			aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
-
-			i++
-		}
-
-		// round 4
-		for i < 64 {
-			alpha = a + (b&d | c&^d) + x[_n[i]] + 0x8f1bbcdc
-			s := int(_r[i])
-			alpha = bits.RotateLeft32(alpha, s) + e
-			beta = bits.RotateLeft32(c, 10)
-			a, b, c, d, e = e, alpha, b, beta, d
-
-			// parallel line
-			alpha = aa + (bb&cc | ^bb&dd) + x[n_[i]] + 0x7a6d76e9
-			s = int(r_[i])
-			alpha = bits.RotateLeft32(alpha, s) + ee
-			beta = bits.RotateLeft32(cc, 10)
-			aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
-
-			i++
-		}
-
-		// round 5
-		for i < 80 {
-			alpha = a + (b ^ (c | ^d)) + x[_n[i]] + 0xa953fd4e
-			s := int(_r[i])
-			alpha = bits.RotateLeft32(alpha, s) + e
-			beta = bits.RotateLeft32(c, 10)
-			a, b, c, d, e = e, alpha, b, beta, d
-
-			// parallel line
-			alpha = aa + (bb ^ cc ^ dd) + x[n_[i]]
-			s = int(r_[i])
-			alpha = bits.RotateLeft32(alpha, s) + ee
-			beta = bits.RotateLeft32(cc, 10)
-			aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
-
-			i++
-		}
-
-		// combine results
-		dd += c + md.s[1]
-		md.s[1] = md.s[2] + d + ee
-		md.s[2] = md.s[3] + e + aa
-		md.s[3] = md.s[4] + a + bb
-		md.s[4] = md.s[0] + b + cc
-		md.s[0] = dd
-
-		p = p[BlockSize:]
-		n += BlockSize
-	}
-	return n
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/hsalsa20.go b/vendor/golang.org/x/crypto/salsa20/salsa/hsalsa20.go
deleted file mode 100644
index 4c96147..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/hsalsa20.go
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package salsa provides low-level access to functions in the Salsa family.
-package salsa // import "golang.org/x/crypto/salsa20/salsa"
-
-// Sigma is the Salsa20 constant for 256-bit keys.
-var Sigma = [16]byte{'e', 'x', 'p', 'a', 'n', 'd', ' ', '3', '2', '-', 'b', 'y', 't', 'e', ' ', 'k'}
-
-// HSalsa20 applies the HSalsa20 core function to a 16-byte input in, 32-byte
-// key k, and 16-byte constant c, and puts the result into the 32-byte array
-// out.
-func HSalsa20(out *[32]byte, in *[16]byte, k *[32]byte, c *[16]byte) {
-	x0 := uint32(c[0]) | uint32(c[1])<<8 | uint32(c[2])<<16 | uint32(c[3])<<24
-	x1 := uint32(k[0]) | uint32(k[1])<<8 | uint32(k[2])<<16 | uint32(k[3])<<24
-	x2 := uint32(k[4]) | uint32(k[5])<<8 | uint32(k[6])<<16 | uint32(k[7])<<24
-	x3 := uint32(k[8]) | uint32(k[9])<<8 | uint32(k[10])<<16 | uint32(k[11])<<24
-	x4 := uint32(k[12]) | uint32(k[13])<<8 | uint32(k[14])<<16 | uint32(k[15])<<24
-	x5 := uint32(c[4]) | uint32(c[5])<<8 | uint32(c[6])<<16 | uint32(c[7])<<24
-	x6 := uint32(in[0]) | uint32(in[1])<<8 | uint32(in[2])<<16 | uint32(in[3])<<24
-	x7 := uint32(in[4]) | uint32(in[5])<<8 | uint32(in[6])<<16 | uint32(in[7])<<24
-	x8 := uint32(in[8]) | uint32(in[9])<<8 | uint32(in[10])<<16 | uint32(in[11])<<24
-	x9 := uint32(in[12]) | uint32(in[13])<<8 | uint32(in[14])<<16 | uint32(in[15])<<24
-	x10 := uint32(c[8]) | uint32(c[9])<<8 | uint32(c[10])<<16 | uint32(c[11])<<24
-	x11 := uint32(k[16]) | uint32(k[17])<<8 | uint32(k[18])<<16 | uint32(k[19])<<24
-	x12 := uint32(k[20]) | uint32(k[21])<<8 | uint32(k[22])<<16 | uint32(k[23])<<24
-	x13 := uint32(k[24]) | uint32(k[25])<<8 | uint32(k[26])<<16 | uint32(k[27])<<24
-	x14 := uint32(k[28]) | uint32(k[29])<<8 | uint32(k[30])<<16 | uint32(k[31])<<24
-	x15 := uint32(c[12]) | uint32(c[13])<<8 | uint32(c[14])<<16 | uint32(c[15])<<24
-
-	for i := 0; i < 20; i += 2 {
-		u := x0 + x12
-		x4 ^= u<<7 | u>>(32-7)
-		u = x4 + x0
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x4
-		x12 ^= u<<13 | u>>(32-13)
-		u = x12 + x8
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x1
-		x9 ^= u<<7 | u>>(32-7)
-		u = x9 + x5
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x9
-		x1 ^= u<<13 | u>>(32-13)
-		u = x1 + x13
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x6
-		x14 ^= u<<7 | u>>(32-7)
-		u = x14 + x10
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x14
-		x6 ^= u<<13 | u>>(32-13)
-		u = x6 + x2
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x11
-		x3 ^= u<<7 | u>>(32-7)
-		u = x3 + x15
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x3
-		x11 ^= u<<13 | u>>(32-13)
-		u = x11 + x7
-		x15 ^= u<<18 | u>>(32-18)
-
-		u = x0 + x3
-		x1 ^= u<<7 | u>>(32-7)
-		u = x1 + x0
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x1
-		x3 ^= u<<13 | u>>(32-13)
-		u = x3 + x2
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x4
-		x6 ^= u<<7 | u>>(32-7)
-		u = x6 + x5
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x6
-		x4 ^= u<<13 | u>>(32-13)
-		u = x4 + x7
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x9
-		x11 ^= u<<7 | u>>(32-7)
-		u = x11 + x10
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x11
-		x9 ^= u<<13 | u>>(32-13)
-		u = x9 + x8
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x14
-		x12 ^= u<<7 | u>>(32-7)
-		u = x12 + x15
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x12
-		x14 ^= u<<13 | u>>(32-13)
-		u = x14 + x13
-		x15 ^= u<<18 | u>>(32-18)
-	}
-	out[0] = byte(x0)
-	out[1] = byte(x0 >> 8)
-	out[2] = byte(x0 >> 16)
-	out[3] = byte(x0 >> 24)
-
-	out[4] = byte(x5)
-	out[5] = byte(x5 >> 8)
-	out[6] = byte(x5 >> 16)
-	out[7] = byte(x5 >> 24)
-
-	out[8] = byte(x10)
-	out[9] = byte(x10 >> 8)
-	out[10] = byte(x10 >> 16)
-	out[11] = byte(x10 >> 24)
-
-	out[12] = byte(x15)
-	out[13] = byte(x15 >> 8)
-	out[14] = byte(x15 >> 16)
-	out[15] = byte(x15 >> 24)
-
-	out[16] = byte(x6)
-	out[17] = byte(x6 >> 8)
-	out[18] = byte(x6 >> 16)
-	out[19] = byte(x6 >> 24)
-
-	out[20] = byte(x7)
-	out[21] = byte(x7 >> 8)
-	out[22] = byte(x7 >> 16)
-	out[23] = byte(x7 >> 24)
-
-	out[24] = byte(x8)
-	out[25] = byte(x8 >> 8)
-	out[26] = byte(x8 >> 16)
-	out[27] = byte(x8 >> 24)
-
-	out[28] = byte(x9)
-	out[29] = byte(x9 >> 8)
-	out[30] = byte(x9 >> 16)
-	out[31] = byte(x9 >> 24)
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/salsa2020_amd64.s b/vendor/golang.org/x/crypto/salsa20/salsa/salsa2020_amd64.s
deleted file mode 100644
index 22afbdc..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/salsa2020_amd64.s
+++ /dev/null
@@ -1,889 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!appengine,!gccgo
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources in SUPERCOP: https://bench.cr.yp.to/supercop.html
-
-// func salsa2020XORKeyStream(out, in *byte, n uint64, nonce, key *byte)
-// This needs up to 64 bytes at 360(SP); hence the non-obvious frame size.
-TEXT ·salsa2020XORKeyStream(SB),0,$456-40 // frame = 424 + 32 byte alignment
-	MOVQ out+0(FP),DI
-	MOVQ in+8(FP),SI
-	MOVQ n+16(FP),DX
-	MOVQ nonce+24(FP),CX
-	MOVQ key+32(FP),R8
-
-	MOVQ SP,R12
-	MOVQ SP,R9
-	ADDQ $31, R9
-	ANDQ $~31, R9
-	MOVQ R9, SP
-
-	MOVQ DX,R9
-	MOVQ CX,DX
-	MOVQ R8,R10
-	CMPQ R9,$0
-	JBE DONE
-	START:
-	MOVL 20(R10),CX
-	MOVL 0(R10),R8
-	MOVL 0(DX),AX
-	MOVL 16(R10),R11
-	MOVL CX,0(SP)
-	MOVL R8, 4 (SP)
-	MOVL AX, 8 (SP)
-	MOVL R11, 12 (SP)
-	MOVL 8(DX),CX
-	MOVL 24(R10),R8
-	MOVL 4(R10),AX
-	MOVL 4(DX),R11
-	MOVL CX,16(SP)
-	MOVL R8, 20 (SP)
-	MOVL AX, 24 (SP)
-	MOVL R11, 28 (SP)
-	MOVL 12(DX),CX
-	MOVL 12(R10),DX
-	MOVL 28(R10),R8
-	MOVL 8(R10),AX
-	MOVL DX,32(SP)
-	MOVL CX, 36 (SP)
-	MOVL R8, 40 (SP)
-	MOVL AX, 44 (SP)
-	MOVQ $1634760805,DX
-	MOVQ $857760878,CX
-	MOVQ $2036477234,R8
-	MOVQ $1797285236,AX
-	MOVL DX,48(SP)
-	MOVL CX, 52 (SP)
-	MOVL R8, 56 (SP)
-	MOVL AX, 60 (SP)
-	CMPQ R9,$256
-	JB BYTESBETWEEN1AND255
-	MOVOA 48(SP),X0
-	PSHUFL $0X55,X0,X1
-	PSHUFL $0XAA,X0,X2
-	PSHUFL $0XFF,X0,X3
-	PSHUFL $0X00,X0,X0
-	MOVOA X1,64(SP)
-	MOVOA X2,80(SP)
-	MOVOA X3,96(SP)
-	MOVOA X0,112(SP)
-	MOVOA 0(SP),X0
-	PSHUFL $0XAA,X0,X1
-	PSHUFL $0XFF,X0,X2
-	PSHUFL $0X00,X0,X3
-	PSHUFL $0X55,X0,X0
-	MOVOA X1,128(SP)
-	MOVOA X2,144(SP)
-	MOVOA X3,160(SP)
-	MOVOA X0,176(SP)
-	MOVOA 16(SP),X0
-	PSHUFL $0XFF,X0,X1
-	PSHUFL $0X55,X0,X2
-	PSHUFL $0XAA,X0,X0
-	MOVOA X1,192(SP)
-	MOVOA X2,208(SP)
-	MOVOA X0,224(SP)
-	MOVOA 32(SP),X0
-	PSHUFL $0X00,X0,X1
-	PSHUFL $0XAA,X0,X2
-	PSHUFL $0XFF,X0,X0
-	MOVOA X1,240(SP)
-	MOVOA X2,256(SP)
-	MOVOA X0,272(SP)
-	BYTESATLEAST256:
-	MOVL 16(SP),DX
-	MOVL  36 (SP),CX
-	MOVL DX,288(SP)
-	MOVL CX,304(SP)
-	ADDQ $1,DX
-	SHLQ $32,CX
-	ADDQ CX,DX
-	MOVQ DX,CX
-	SHRQ $32,CX
-	MOVL DX, 292 (SP)
-	MOVL CX, 308 (SP)
-	ADDQ $1,DX
-	SHLQ $32,CX
-	ADDQ CX,DX
-	MOVQ DX,CX
-	SHRQ $32,CX
-	MOVL DX, 296 (SP)
-	MOVL CX, 312 (SP)
-	ADDQ $1,DX
-	SHLQ $32,CX
-	ADDQ CX,DX
-	MOVQ DX,CX
-	SHRQ $32,CX
-	MOVL DX, 300 (SP)
-	MOVL CX, 316 (SP)
-	ADDQ $1,DX
-	SHLQ $32,CX
-	ADDQ CX,DX
-	MOVQ DX,CX
-	SHRQ $32,CX
-	MOVL DX,16(SP)
-	MOVL CX, 36 (SP)
-	MOVQ R9,352(SP)
-	MOVQ $20,DX
-	MOVOA 64(SP),X0
-	MOVOA 80(SP),X1
-	MOVOA 96(SP),X2
-	MOVOA 256(SP),X3
-	MOVOA 272(SP),X4
-	MOVOA 128(SP),X5
-	MOVOA 144(SP),X6
-	MOVOA 176(SP),X7
-	MOVOA 192(SP),X8
-	MOVOA 208(SP),X9
-	MOVOA 224(SP),X10
-	MOVOA 304(SP),X11
-	MOVOA 112(SP),X12
-	MOVOA 160(SP),X13
-	MOVOA 240(SP),X14
-	MOVOA 288(SP),X15
-	MAINLOOP1:
-	MOVOA X1,320(SP)
-	MOVOA X2,336(SP)
-	MOVOA X13,X1
-	PADDL X12,X1
-	MOVOA X1,X2
-	PSLLL $7,X1
-	PXOR X1,X14
-	PSRLL $25,X2
-	PXOR X2,X14
-	MOVOA X7,X1
-	PADDL X0,X1
-	MOVOA X1,X2
-	PSLLL $7,X1
-	PXOR X1,X11
-	PSRLL $25,X2
-	PXOR X2,X11
-	MOVOA X12,X1
-	PADDL X14,X1
-	MOVOA X1,X2
-	PSLLL $9,X1
-	PXOR X1,X15
-	PSRLL $23,X2
-	PXOR X2,X15
-	MOVOA X0,X1
-	PADDL X11,X1
-	MOVOA X1,X2
-	PSLLL $9,X1
-	PXOR X1,X9
-	PSRLL $23,X2
-	PXOR X2,X9
-	MOVOA X14,X1
-	PADDL X15,X1
-	MOVOA X1,X2
-	PSLLL $13,X1
-	PXOR X1,X13
-	PSRLL $19,X2
-	PXOR X2,X13
-	MOVOA X11,X1
-	PADDL X9,X1
-	MOVOA X1,X2
-	PSLLL $13,X1
-	PXOR X1,X7
-	PSRLL $19,X2
-	PXOR X2,X7
-	MOVOA X15,X1
-	PADDL X13,X1
-	MOVOA X1,X2
-	PSLLL $18,X1
-	PXOR X1,X12
-	PSRLL $14,X2
-	PXOR X2,X12
-	MOVOA 320(SP),X1
-	MOVOA X12,320(SP)
-	MOVOA X9,X2
-	PADDL X7,X2
-	MOVOA X2,X12
-	PSLLL $18,X2
-	PXOR X2,X0
-	PSRLL $14,X12
-	PXOR X12,X0
-	MOVOA X5,X2
-	PADDL X1,X2
-	MOVOA X2,X12
-	PSLLL $7,X2
-	PXOR X2,X3
-	PSRLL $25,X12
-	PXOR X12,X3
-	MOVOA 336(SP),X2
-	MOVOA X0,336(SP)
-	MOVOA X6,X0
-	PADDL X2,X0
-	MOVOA X0,X12
-	PSLLL $7,X0
-	PXOR X0,X4
-	PSRLL $25,X12
-	PXOR X12,X4
-	MOVOA X1,X0
-	PADDL X3,X0
-	MOVOA X0,X12
-	PSLLL $9,X0
-	PXOR X0,X10
-	PSRLL $23,X12
-	PXOR X12,X10
-	MOVOA X2,X0
-	PADDL X4,X0
-	MOVOA X0,X12
-	PSLLL $9,X0
-	PXOR X0,X8
-	PSRLL $23,X12
-	PXOR X12,X8
-	MOVOA X3,X0
-	PADDL X10,X0
-	MOVOA X0,X12
-	PSLLL $13,X0
-	PXOR X0,X5
-	PSRLL $19,X12
-	PXOR X12,X5
-	MOVOA X4,X0
-	PADDL X8,X0
-	MOVOA X0,X12
-	PSLLL $13,X0
-	PXOR X0,X6
-	PSRLL $19,X12
-	PXOR X12,X6
-	MOVOA X10,X0
-	PADDL X5,X0
-	MOVOA X0,X12
-	PSLLL $18,X0
-	PXOR X0,X1
-	PSRLL $14,X12
-	PXOR X12,X1
-	MOVOA 320(SP),X0
-	MOVOA X1,320(SP)
-	MOVOA X4,X1
-	PADDL X0,X1
-	MOVOA X1,X12
-	PSLLL $7,X1
-	PXOR X1,X7
-	PSRLL $25,X12
-	PXOR X12,X7
-	MOVOA X8,X1
-	PADDL X6,X1
-	MOVOA X1,X12
-	PSLLL $18,X1
-	PXOR X1,X2
-	PSRLL $14,X12
-	PXOR X12,X2
-	MOVOA 336(SP),X12
-	MOVOA X2,336(SP)
-	MOVOA X14,X1
-	PADDL X12,X1
-	MOVOA X1,X2
-	PSLLL $7,X1
-	PXOR X1,X5
-	PSRLL $25,X2
-	PXOR X2,X5
-	MOVOA X0,X1
-	PADDL X7,X1
-	MOVOA X1,X2
-	PSLLL $9,X1
-	PXOR X1,X10
-	PSRLL $23,X2
-	PXOR X2,X10
-	MOVOA X12,X1
-	PADDL X5,X1
-	MOVOA X1,X2
-	PSLLL $9,X1
-	PXOR X1,X8
-	PSRLL $23,X2
-	PXOR X2,X8
-	MOVOA X7,X1
-	PADDL X10,X1
-	MOVOA X1,X2
-	PSLLL $13,X1
-	PXOR X1,X4
-	PSRLL $19,X2
-	PXOR X2,X4
-	MOVOA X5,X1
-	PADDL X8,X1
-	MOVOA X1,X2
-	PSLLL $13,X1
-	PXOR X1,X14
-	PSRLL $19,X2
-	PXOR X2,X14
-	MOVOA X10,X1
-	PADDL X4,X1
-	MOVOA X1,X2
-	PSLLL $18,X1
-	PXOR X1,X0
-	PSRLL $14,X2
-	PXOR X2,X0
-	MOVOA 320(SP),X1
-	MOVOA X0,320(SP)
-	MOVOA X8,X0
-	PADDL X14,X0
-	MOVOA X0,X2
-	PSLLL $18,X0
-	PXOR X0,X12
-	PSRLL $14,X2
-	PXOR X2,X12
-	MOVOA X11,X0
-	PADDL X1,X0
-	MOVOA X0,X2
-	PSLLL $7,X0
-	PXOR X0,X6
-	PSRLL $25,X2
-	PXOR X2,X6
-	MOVOA 336(SP),X2
-	MOVOA X12,336(SP)
-	MOVOA X3,X0
-	PADDL X2,X0
-	MOVOA X0,X12
-	PSLLL $7,X0
-	PXOR X0,X13
-	PSRLL $25,X12
-	PXOR X12,X13
-	MOVOA X1,X0
-	PADDL X6,X0
-	MOVOA X0,X12
-	PSLLL $9,X0
-	PXOR X0,X15
-	PSRLL $23,X12
-	PXOR X12,X15
-	MOVOA X2,X0
-	PADDL X13,X0
-	MOVOA X0,X12
-	PSLLL $9,X0
-	PXOR X0,X9
-	PSRLL $23,X12
-	PXOR X12,X9
-	MOVOA X6,X0
-	PADDL X15,X0
-	MOVOA X0,X12
-	PSLLL $13,X0
-	PXOR X0,X11
-	PSRLL $19,X12
-	PXOR X12,X11
-	MOVOA X13,X0
-	PADDL X9,X0
-	MOVOA X0,X12
-	PSLLL $13,X0
-	PXOR X0,X3
-	PSRLL $19,X12
-	PXOR X12,X3
-	MOVOA X15,X0
-	PADDL X11,X0
-	MOVOA X0,X12
-	PSLLL $18,X0
-	PXOR X0,X1
-	PSRLL $14,X12
-	PXOR X12,X1
-	MOVOA X9,X0
-	PADDL X3,X0
-	MOVOA X0,X12
-	PSLLL $18,X0
-	PXOR X0,X2
-	PSRLL $14,X12
-	PXOR X12,X2
-	MOVOA 320(SP),X12
-	MOVOA 336(SP),X0
-	SUBQ $2,DX
-	JA MAINLOOP1
-	PADDL 112(SP),X12
-	PADDL 176(SP),X7
-	PADDL 224(SP),X10
-	PADDL 272(SP),X4
-	MOVD X12,DX
-	MOVD X7,CX
-	MOVD X10,R8
-	MOVD X4,R9
-	PSHUFL $0X39,X12,X12
-	PSHUFL $0X39,X7,X7
-	PSHUFL $0X39,X10,X10
-	PSHUFL $0X39,X4,X4
-	XORL 0(SI),DX
-	XORL 4(SI),CX
-	XORL 8(SI),R8
-	XORL 12(SI),R9
-	MOVL DX,0(DI)
-	MOVL CX,4(DI)
-	MOVL R8,8(DI)
-	MOVL R9,12(DI)
-	MOVD X12,DX
-	MOVD X7,CX
-	MOVD X10,R8
-	MOVD X4,R9
-	PSHUFL $0X39,X12,X12
-	PSHUFL $0X39,X7,X7
-	PSHUFL $0X39,X10,X10
-	PSHUFL $0X39,X4,X4
-	XORL 64(SI),DX
-	XORL 68(SI),CX
-	XORL 72(SI),R8
-	XORL 76(SI),R9
-	MOVL DX,64(DI)
-	MOVL CX,68(DI)
-	MOVL R8,72(DI)
-	MOVL R9,76(DI)
-	MOVD X12,DX
-	MOVD X7,CX
-	MOVD X10,R8
-	MOVD X4,R9
-	PSHUFL $0X39,X12,X12
-	PSHUFL $0X39,X7,X7
-	PSHUFL $0X39,X10,X10
-	PSHUFL $0X39,X4,X4
-	XORL 128(SI),DX
-	XORL 132(SI),CX
-	XORL 136(SI),R8
-	XORL 140(SI),R9
-	MOVL DX,128(DI)
-	MOVL CX,132(DI)
-	MOVL R8,136(DI)
-	MOVL R9,140(DI)
-	MOVD X12,DX
-	MOVD X7,CX
-	MOVD X10,R8
-	MOVD X4,R9
-	XORL 192(SI),DX
-	XORL 196(SI),CX
-	XORL 200(SI),R8
-	XORL 204(SI),R9
-	MOVL DX,192(DI)
-	MOVL CX,196(DI)
-	MOVL R8,200(DI)
-	MOVL R9,204(DI)
-	PADDL 240(SP),X14
-	PADDL 64(SP),X0
-	PADDL 128(SP),X5
-	PADDL 192(SP),X8
-	MOVD X14,DX
-	MOVD X0,CX
-	MOVD X5,R8
-	MOVD X8,R9
-	PSHUFL $0X39,X14,X14
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X5,X5
-	PSHUFL $0X39,X8,X8
-	XORL 16(SI),DX
-	XORL 20(SI),CX
-	XORL 24(SI),R8
-	XORL 28(SI),R9
-	MOVL DX,16(DI)
-	MOVL CX,20(DI)
-	MOVL R8,24(DI)
-	MOVL R9,28(DI)
-	MOVD X14,DX
-	MOVD X0,CX
-	MOVD X5,R8
-	MOVD X8,R9
-	PSHUFL $0X39,X14,X14
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X5,X5
-	PSHUFL $0X39,X8,X8
-	XORL 80(SI),DX
-	XORL 84(SI),CX
-	XORL 88(SI),R8
-	XORL 92(SI),R9
-	MOVL DX,80(DI)
-	MOVL CX,84(DI)
-	MOVL R8,88(DI)
-	MOVL R9,92(DI)
-	MOVD X14,DX
-	MOVD X0,CX
-	MOVD X5,R8
-	MOVD X8,R9
-	PSHUFL $0X39,X14,X14
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X5,X5
-	PSHUFL $0X39,X8,X8
-	XORL 144(SI),DX
-	XORL 148(SI),CX
-	XORL 152(SI),R8
-	XORL 156(SI),R9
-	MOVL DX,144(DI)
-	MOVL CX,148(DI)
-	MOVL R8,152(DI)
-	MOVL R9,156(DI)
-	MOVD X14,DX
-	MOVD X0,CX
-	MOVD X5,R8
-	MOVD X8,R9
-	XORL 208(SI),DX
-	XORL 212(SI),CX
-	XORL 216(SI),R8
-	XORL 220(SI),R9
-	MOVL DX,208(DI)
-	MOVL CX,212(DI)
-	MOVL R8,216(DI)
-	MOVL R9,220(DI)
-	PADDL 288(SP),X15
-	PADDL 304(SP),X11
-	PADDL 80(SP),X1
-	PADDL 144(SP),X6
-	MOVD X15,DX
-	MOVD X11,CX
-	MOVD X1,R8
-	MOVD X6,R9
-	PSHUFL $0X39,X15,X15
-	PSHUFL $0X39,X11,X11
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X6,X6
-	XORL 32(SI),DX
-	XORL 36(SI),CX
-	XORL 40(SI),R8
-	XORL 44(SI),R9
-	MOVL DX,32(DI)
-	MOVL CX,36(DI)
-	MOVL R8,40(DI)
-	MOVL R9,44(DI)
-	MOVD X15,DX
-	MOVD X11,CX
-	MOVD X1,R8
-	MOVD X6,R9
-	PSHUFL $0X39,X15,X15
-	PSHUFL $0X39,X11,X11
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X6,X6
-	XORL 96(SI),DX
-	XORL 100(SI),CX
-	XORL 104(SI),R8
-	XORL 108(SI),R9
-	MOVL DX,96(DI)
-	MOVL CX,100(DI)
-	MOVL R8,104(DI)
-	MOVL R9,108(DI)
-	MOVD X15,DX
-	MOVD X11,CX
-	MOVD X1,R8
-	MOVD X6,R9
-	PSHUFL $0X39,X15,X15
-	PSHUFL $0X39,X11,X11
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X6,X6
-	XORL 160(SI),DX
-	XORL 164(SI),CX
-	XORL 168(SI),R8
-	XORL 172(SI),R9
-	MOVL DX,160(DI)
-	MOVL CX,164(DI)
-	MOVL R8,168(DI)
-	MOVL R9,172(DI)
-	MOVD X15,DX
-	MOVD X11,CX
-	MOVD X1,R8
-	MOVD X6,R9
-	XORL 224(SI),DX
-	XORL 228(SI),CX
-	XORL 232(SI),R8
-	XORL 236(SI),R9
-	MOVL DX,224(DI)
-	MOVL CX,228(DI)
-	MOVL R8,232(DI)
-	MOVL R9,236(DI)
-	PADDL 160(SP),X13
-	PADDL 208(SP),X9
-	PADDL 256(SP),X3
-	PADDL 96(SP),X2
-	MOVD X13,DX
-	MOVD X9,CX
-	MOVD X3,R8
-	MOVD X2,R9
-	PSHUFL $0X39,X13,X13
-	PSHUFL $0X39,X9,X9
-	PSHUFL $0X39,X3,X3
-	PSHUFL $0X39,X2,X2
-	XORL 48(SI),DX
-	XORL 52(SI),CX
-	XORL 56(SI),R8
-	XORL 60(SI),R9
-	MOVL DX,48(DI)
-	MOVL CX,52(DI)
-	MOVL R8,56(DI)
-	MOVL R9,60(DI)
-	MOVD X13,DX
-	MOVD X9,CX
-	MOVD X3,R8
-	MOVD X2,R9
-	PSHUFL $0X39,X13,X13
-	PSHUFL $0X39,X9,X9
-	PSHUFL $0X39,X3,X3
-	PSHUFL $0X39,X2,X2
-	XORL 112(SI),DX
-	XORL 116(SI),CX
-	XORL 120(SI),R8
-	XORL 124(SI),R9
-	MOVL DX,112(DI)
-	MOVL CX,116(DI)
-	MOVL R8,120(DI)
-	MOVL R9,124(DI)
-	MOVD X13,DX
-	MOVD X9,CX
-	MOVD X3,R8
-	MOVD X2,R9
-	PSHUFL $0X39,X13,X13
-	PSHUFL $0X39,X9,X9
-	PSHUFL $0X39,X3,X3
-	PSHUFL $0X39,X2,X2
-	XORL 176(SI),DX
-	XORL 180(SI),CX
-	XORL 184(SI),R8
-	XORL 188(SI),R9
-	MOVL DX,176(DI)
-	MOVL CX,180(DI)
-	MOVL R8,184(DI)
-	MOVL R9,188(DI)
-	MOVD X13,DX
-	MOVD X9,CX
-	MOVD X3,R8
-	MOVD X2,R9
-	XORL 240(SI),DX
-	XORL 244(SI),CX
-	XORL 248(SI),R8
-	XORL 252(SI),R9
-	MOVL DX,240(DI)
-	MOVL CX,244(DI)
-	MOVL R8,248(DI)
-	MOVL R9,252(DI)
-	MOVQ 352(SP),R9
-	SUBQ $256,R9
-	ADDQ $256,SI
-	ADDQ $256,DI
-	CMPQ R9,$256
-	JAE BYTESATLEAST256
-	CMPQ R9,$0
-	JBE DONE
-	BYTESBETWEEN1AND255:
-	CMPQ R9,$64
-	JAE NOCOPY
-	MOVQ DI,DX
-	LEAQ 360(SP),DI
-	MOVQ R9,CX
-	REP; MOVSB
-	LEAQ 360(SP),DI
-	LEAQ 360(SP),SI
-	NOCOPY:
-	MOVQ R9,352(SP)
-	MOVOA 48(SP),X0
-	MOVOA 0(SP),X1
-	MOVOA 16(SP),X2
-	MOVOA 32(SP),X3
-	MOVOA X1,X4
-	MOVQ $20,CX
-	MAINLOOP2:
-	PADDL X0,X4
-	MOVOA X0,X5
-	MOVOA X4,X6
-	PSLLL $7,X4
-	PSRLL $25,X6
-	PXOR X4,X3
-	PXOR X6,X3
-	PADDL X3,X5
-	MOVOA X3,X4
-	MOVOA X5,X6
-	PSLLL $9,X5
-	PSRLL $23,X6
-	PXOR X5,X2
-	PSHUFL $0X93,X3,X3
-	PXOR X6,X2
-	PADDL X2,X4
-	MOVOA X2,X5
-	MOVOA X4,X6
-	PSLLL $13,X4
-	PSRLL $19,X6
-	PXOR X4,X1
-	PSHUFL $0X4E,X2,X2
-	PXOR X6,X1
-	PADDL X1,X5
-	MOVOA X3,X4
-	MOVOA X5,X6
-	PSLLL $18,X5
-	PSRLL $14,X6
-	PXOR X5,X0
-	PSHUFL $0X39,X1,X1
-	PXOR X6,X0
-	PADDL X0,X4
-	MOVOA X0,X5
-	MOVOA X4,X6
-	PSLLL $7,X4
-	PSRLL $25,X6
-	PXOR X4,X1
-	PXOR X6,X1
-	PADDL X1,X5
-	MOVOA X1,X4
-	MOVOA X5,X6
-	PSLLL $9,X5
-	PSRLL $23,X6
-	PXOR X5,X2
-	PSHUFL $0X93,X1,X1
-	PXOR X6,X2
-	PADDL X2,X4
-	MOVOA X2,X5
-	MOVOA X4,X6
-	PSLLL $13,X4
-	PSRLL $19,X6
-	PXOR X4,X3
-	PSHUFL $0X4E,X2,X2
-	PXOR X6,X3
-	PADDL X3,X5
-	MOVOA X1,X4
-	MOVOA X5,X6
-	PSLLL $18,X5
-	PSRLL $14,X6
-	PXOR X5,X0
-	PSHUFL $0X39,X3,X3
-	PXOR X6,X0
-	PADDL X0,X4
-	MOVOA X0,X5
-	MOVOA X4,X6
-	PSLLL $7,X4
-	PSRLL $25,X6
-	PXOR X4,X3
-	PXOR X6,X3
-	PADDL X3,X5
-	MOVOA X3,X4
-	MOVOA X5,X6
-	PSLLL $9,X5
-	PSRLL $23,X6
-	PXOR X5,X2
-	PSHUFL $0X93,X3,X3
-	PXOR X6,X2
-	PADDL X2,X4
-	MOVOA X2,X5
-	MOVOA X4,X6
-	PSLLL $13,X4
-	PSRLL $19,X6
-	PXOR X4,X1
-	PSHUFL $0X4E,X2,X2
-	PXOR X6,X1
-	PADDL X1,X5
-	MOVOA X3,X4
-	MOVOA X5,X6
-	PSLLL $18,X5
-	PSRLL $14,X6
-	PXOR X5,X0
-	PSHUFL $0X39,X1,X1
-	PXOR X6,X0
-	PADDL X0,X4
-	MOVOA X0,X5
-	MOVOA X4,X6
-	PSLLL $7,X4
-	PSRLL $25,X6
-	PXOR X4,X1
-	PXOR X6,X1
-	PADDL X1,X5
-	MOVOA X1,X4
-	MOVOA X5,X6
-	PSLLL $9,X5
-	PSRLL $23,X6
-	PXOR X5,X2
-	PSHUFL $0X93,X1,X1
-	PXOR X6,X2
-	PADDL X2,X4
-	MOVOA X2,X5
-	MOVOA X4,X6
-	PSLLL $13,X4
-	PSRLL $19,X6
-	PXOR X4,X3
-	PSHUFL $0X4E,X2,X2
-	PXOR X6,X3
-	SUBQ $4,CX
-	PADDL X3,X5
-	MOVOA X1,X4
-	MOVOA X5,X6
-	PSLLL $18,X5
-	PXOR X7,X7
-	PSRLL $14,X6
-	PXOR X5,X0
-	PSHUFL $0X39,X3,X3
-	PXOR X6,X0
-	JA MAINLOOP2
-	PADDL 48(SP),X0
-	PADDL 0(SP),X1
-	PADDL 16(SP),X2
-	PADDL 32(SP),X3
-	MOVD X0,CX
-	MOVD X1,R8
-	MOVD X2,R9
-	MOVD X3,AX
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X2,X2
-	PSHUFL $0X39,X3,X3
-	XORL 0(SI),CX
-	XORL 48(SI),R8
-	XORL 32(SI),R9
-	XORL 16(SI),AX
-	MOVL CX,0(DI)
-	MOVL R8,48(DI)
-	MOVL R9,32(DI)
-	MOVL AX,16(DI)
-	MOVD X0,CX
-	MOVD X1,R8
-	MOVD X2,R9
-	MOVD X3,AX
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X2,X2
-	PSHUFL $0X39,X3,X3
-	XORL 20(SI),CX
-	XORL 4(SI),R8
-	XORL 52(SI),R9
-	XORL 36(SI),AX
-	MOVL CX,20(DI)
-	MOVL R8,4(DI)
-	MOVL R9,52(DI)
-	MOVL AX,36(DI)
-	MOVD X0,CX
-	MOVD X1,R8
-	MOVD X2,R9
-	MOVD X3,AX
-	PSHUFL $0X39,X0,X0
-	PSHUFL $0X39,X1,X1
-	PSHUFL $0X39,X2,X2
-	PSHUFL $0X39,X3,X3
-	XORL 40(SI),CX
-	XORL 24(SI),R8
-	XORL 8(SI),R9
-	XORL 56(SI),AX
-	MOVL CX,40(DI)
-	MOVL R8,24(DI)
-	MOVL R9,8(DI)
-	MOVL AX,56(DI)
-	MOVD X0,CX
-	MOVD X1,R8
-	MOVD X2,R9
-	MOVD X3,AX
-	XORL 60(SI),CX
-	XORL 44(SI),R8
-	XORL 28(SI),R9
-	XORL 12(SI),AX
-	MOVL CX,60(DI)
-	MOVL R8,44(DI)
-	MOVL R9,28(DI)
-	MOVL AX,12(DI)
-	MOVQ 352(SP),R9
-	MOVL 16(SP),CX
-	MOVL  36 (SP),R8
-	ADDQ $1,CX
-	SHLQ $32,R8
-	ADDQ R8,CX
-	MOVQ CX,R8
-	SHRQ $32,R8
-	MOVL CX,16(SP)
-	MOVL R8, 36 (SP)
-	CMPQ R9,$64
-	JA BYTESATLEAST65
-	JAE BYTESATLEAST64
-	MOVQ DI,SI
-	MOVQ DX,DI
-	MOVQ R9,CX
-	REP; MOVSB
-	BYTESATLEAST64:
-	DONE:
-	MOVQ R12,SP
-	RET
-	BYTESATLEAST65:
-	SUBQ $64,R9
-	ADDQ $64,DI
-	ADDQ $64,SI
-	JMP BYTESBETWEEN1AND255
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/salsa208.go b/vendor/golang.org/x/crypto/salsa20/salsa/salsa208.go
deleted file mode 100644
index 9bfc092..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/salsa208.go
+++ /dev/null
@@ -1,199 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package salsa
-
-// Core208 applies the Salsa20/8 core function to the 64-byte array in and puts
-// the result into the 64-byte array out. The input and output may be the same array.
-func Core208(out *[64]byte, in *[64]byte) {
-	j0 := uint32(in[0]) | uint32(in[1])<<8 | uint32(in[2])<<16 | uint32(in[3])<<24
-	j1 := uint32(in[4]) | uint32(in[5])<<8 | uint32(in[6])<<16 | uint32(in[7])<<24
-	j2 := uint32(in[8]) | uint32(in[9])<<8 | uint32(in[10])<<16 | uint32(in[11])<<24
-	j3 := uint32(in[12]) | uint32(in[13])<<8 | uint32(in[14])<<16 | uint32(in[15])<<24
-	j4 := uint32(in[16]) | uint32(in[17])<<8 | uint32(in[18])<<16 | uint32(in[19])<<24
-	j5 := uint32(in[20]) | uint32(in[21])<<8 | uint32(in[22])<<16 | uint32(in[23])<<24
-	j6 := uint32(in[24]) | uint32(in[25])<<8 | uint32(in[26])<<16 | uint32(in[27])<<24
-	j7 := uint32(in[28]) | uint32(in[29])<<8 | uint32(in[30])<<16 | uint32(in[31])<<24
-	j8 := uint32(in[32]) | uint32(in[33])<<8 | uint32(in[34])<<16 | uint32(in[35])<<24
-	j9 := uint32(in[36]) | uint32(in[37])<<8 | uint32(in[38])<<16 | uint32(in[39])<<24
-	j10 := uint32(in[40]) | uint32(in[41])<<8 | uint32(in[42])<<16 | uint32(in[43])<<24
-	j11 := uint32(in[44]) | uint32(in[45])<<8 | uint32(in[46])<<16 | uint32(in[47])<<24
-	j12 := uint32(in[48]) | uint32(in[49])<<8 | uint32(in[50])<<16 | uint32(in[51])<<24
-	j13 := uint32(in[52]) | uint32(in[53])<<8 | uint32(in[54])<<16 | uint32(in[55])<<24
-	j14 := uint32(in[56]) | uint32(in[57])<<8 | uint32(in[58])<<16 | uint32(in[59])<<24
-	j15 := uint32(in[60]) | uint32(in[61])<<8 | uint32(in[62])<<16 | uint32(in[63])<<24
-
-	x0, x1, x2, x3, x4, x5, x6, x7, x8 := j0, j1, j2, j3, j4, j5, j6, j7, j8
-	x9, x10, x11, x12, x13, x14, x15 := j9, j10, j11, j12, j13, j14, j15
-
-	for i := 0; i < 8; i += 2 {
-		u := x0 + x12
-		x4 ^= u<<7 | u>>(32-7)
-		u = x4 + x0
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x4
-		x12 ^= u<<13 | u>>(32-13)
-		u = x12 + x8
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x1
-		x9 ^= u<<7 | u>>(32-7)
-		u = x9 + x5
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x9
-		x1 ^= u<<13 | u>>(32-13)
-		u = x1 + x13
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x6
-		x14 ^= u<<7 | u>>(32-7)
-		u = x14 + x10
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x14
-		x6 ^= u<<13 | u>>(32-13)
-		u = x6 + x2
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x11
-		x3 ^= u<<7 | u>>(32-7)
-		u = x3 + x15
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x3
-		x11 ^= u<<13 | u>>(32-13)
-		u = x11 + x7
-		x15 ^= u<<18 | u>>(32-18)
-
-		u = x0 + x3
-		x1 ^= u<<7 | u>>(32-7)
-		u = x1 + x0
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x1
-		x3 ^= u<<13 | u>>(32-13)
-		u = x3 + x2
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x4
-		x6 ^= u<<7 | u>>(32-7)
-		u = x6 + x5
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x6
-		x4 ^= u<<13 | u>>(32-13)
-		u = x4 + x7
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x9
-		x11 ^= u<<7 | u>>(32-7)
-		u = x11 + x10
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x11
-		x9 ^= u<<13 | u>>(32-13)
-		u = x9 + x8
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x14
-		x12 ^= u<<7 | u>>(32-7)
-		u = x12 + x15
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x12
-		x14 ^= u<<13 | u>>(32-13)
-		u = x14 + x13
-		x15 ^= u<<18 | u>>(32-18)
-	}
-	x0 += j0
-	x1 += j1
-	x2 += j2
-	x3 += j3
-	x4 += j4
-	x5 += j5
-	x6 += j6
-	x7 += j7
-	x8 += j8
-	x9 += j9
-	x10 += j10
-	x11 += j11
-	x12 += j12
-	x13 += j13
-	x14 += j14
-	x15 += j15
-
-	out[0] = byte(x0)
-	out[1] = byte(x0 >> 8)
-	out[2] = byte(x0 >> 16)
-	out[3] = byte(x0 >> 24)
-
-	out[4] = byte(x1)
-	out[5] = byte(x1 >> 8)
-	out[6] = byte(x1 >> 16)
-	out[7] = byte(x1 >> 24)
-
-	out[8] = byte(x2)
-	out[9] = byte(x2 >> 8)
-	out[10] = byte(x2 >> 16)
-	out[11] = byte(x2 >> 24)
-
-	out[12] = byte(x3)
-	out[13] = byte(x3 >> 8)
-	out[14] = byte(x3 >> 16)
-	out[15] = byte(x3 >> 24)
-
-	out[16] = byte(x4)
-	out[17] = byte(x4 >> 8)
-	out[18] = byte(x4 >> 16)
-	out[19] = byte(x4 >> 24)
-
-	out[20] = byte(x5)
-	out[21] = byte(x5 >> 8)
-	out[22] = byte(x5 >> 16)
-	out[23] = byte(x5 >> 24)
-
-	out[24] = byte(x6)
-	out[25] = byte(x6 >> 8)
-	out[26] = byte(x6 >> 16)
-	out[27] = byte(x6 >> 24)
-
-	out[28] = byte(x7)
-	out[29] = byte(x7 >> 8)
-	out[30] = byte(x7 >> 16)
-	out[31] = byte(x7 >> 24)
-
-	out[32] = byte(x8)
-	out[33] = byte(x8 >> 8)
-	out[34] = byte(x8 >> 16)
-	out[35] = byte(x8 >> 24)
-
-	out[36] = byte(x9)
-	out[37] = byte(x9 >> 8)
-	out[38] = byte(x9 >> 16)
-	out[39] = byte(x9 >> 24)
-
-	out[40] = byte(x10)
-	out[41] = byte(x10 >> 8)
-	out[42] = byte(x10 >> 16)
-	out[43] = byte(x10 >> 24)
-
-	out[44] = byte(x11)
-	out[45] = byte(x11 >> 8)
-	out[46] = byte(x11 >> 16)
-	out[47] = byte(x11 >> 24)
-
-	out[48] = byte(x12)
-	out[49] = byte(x12 >> 8)
-	out[50] = byte(x12 >> 16)
-	out[51] = byte(x12 >> 24)
-
-	out[52] = byte(x13)
-	out[53] = byte(x13 >> 8)
-	out[54] = byte(x13 >> 16)
-	out[55] = byte(x13 >> 24)
-
-	out[56] = byte(x14)
-	out[57] = byte(x14 >> 8)
-	out[58] = byte(x14 >> 16)
-	out[59] = byte(x14 >> 24)
-
-	out[60] = byte(x15)
-	out[61] = byte(x15 >> 8)
-	out[62] = byte(x15 >> 16)
-	out[63] = byte(x15 >> 24)
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_amd64.go b/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_amd64.go
deleted file mode 100644
index f9269c3..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_amd64.go
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!appengine,!gccgo
-
-package salsa
-
-// This function is implemented in salsa2020_amd64.s.
-
-//go:noescape
-
-func salsa2020XORKeyStream(out, in *byte, n uint64, nonce, key *byte)
-
-// XORKeyStream crypts bytes from in to out using the given key and counters.
-// In and out must overlap entirely or not at all. Counter
-// contains the raw salsa20 counter bytes (both nonce and block counter).
-func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
-	if len(in) == 0 {
-		return
-	}
-	_ = out[len(in)-1]
-	salsa2020XORKeyStream(&out[0], &in[0], uint64(len(in)), &counter[0], &key[0])
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_ref.go b/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_ref.go
deleted file mode 100644
index 22126d1..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/salsa20_ref.go
+++ /dev/null
@@ -1,234 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64 appengine gccgo
-
-package salsa
-
-const rounds = 20
-
-// core applies the Salsa20 core function to 16-byte input in, 32-byte key k,
-// and 16-byte constant c, and puts the result into 64-byte array out.
-func core(out *[64]byte, in *[16]byte, k *[32]byte, c *[16]byte) {
-	j0 := uint32(c[0]) | uint32(c[1])<<8 | uint32(c[2])<<16 | uint32(c[3])<<24
-	j1 := uint32(k[0]) | uint32(k[1])<<8 | uint32(k[2])<<16 | uint32(k[3])<<24
-	j2 := uint32(k[4]) | uint32(k[5])<<8 | uint32(k[6])<<16 | uint32(k[7])<<24
-	j3 := uint32(k[8]) | uint32(k[9])<<8 | uint32(k[10])<<16 | uint32(k[11])<<24
-	j4 := uint32(k[12]) | uint32(k[13])<<8 | uint32(k[14])<<16 | uint32(k[15])<<24
-	j5 := uint32(c[4]) | uint32(c[5])<<8 | uint32(c[6])<<16 | uint32(c[7])<<24
-	j6 := uint32(in[0]) | uint32(in[1])<<8 | uint32(in[2])<<16 | uint32(in[3])<<24
-	j7 := uint32(in[4]) | uint32(in[5])<<8 | uint32(in[6])<<16 | uint32(in[7])<<24
-	j8 := uint32(in[8]) | uint32(in[9])<<8 | uint32(in[10])<<16 | uint32(in[11])<<24
-	j9 := uint32(in[12]) | uint32(in[13])<<8 | uint32(in[14])<<16 | uint32(in[15])<<24
-	j10 := uint32(c[8]) | uint32(c[9])<<8 | uint32(c[10])<<16 | uint32(c[11])<<24
-	j11 := uint32(k[16]) | uint32(k[17])<<8 | uint32(k[18])<<16 | uint32(k[19])<<24
-	j12 := uint32(k[20]) | uint32(k[21])<<8 | uint32(k[22])<<16 | uint32(k[23])<<24
-	j13 := uint32(k[24]) | uint32(k[25])<<8 | uint32(k[26])<<16 | uint32(k[27])<<24
-	j14 := uint32(k[28]) | uint32(k[29])<<8 | uint32(k[30])<<16 | uint32(k[31])<<24
-	j15 := uint32(c[12]) | uint32(c[13])<<8 | uint32(c[14])<<16 | uint32(c[15])<<24
-
-	x0, x1, x2, x3, x4, x5, x6, x7, x8 := j0, j1, j2, j3, j4, j5, j6, j7, j8
-	x9, x10, x11, x12, x13, x14, x15 := j9, j10, j11, j12, j13, j14, j15
-
-	for i := 0; i < rounds; i += 2 {
-		u := x0 + x12
-		x4 ^= u<<7 | u>>(32-7)
-		u = x4 + x0
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x4
-		x12 ^= u<<13 | u>>(32-13)
-		u = x12 + x8
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x1
-		x9 ^= u<<7 | u>>(32-7)
-		u = x9 + x5
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x9
-		x1 ^= u<<13 | u>>(32-13)
-		u = x1 + x13
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x6
-		x14 ^= u<<7 | u>>(32-7)
-		u = x14 + x10
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x14
-		x6 ^= u<<13 | u>>(32-13)
-		u = x6 + x2
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x11
-		x3 ^= u<<7 | u>>(32-7)
-		u = x3 + x15
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x3
-		x11 ^= u<<13 | u>>(32-13)
-		u = x11 + x7
-		x15 ^= u<<18 | u>>(32-18)
-
-		u = x0 + x3
-		x1 ^= u<<7 | u>>(32-7)
-		u = x1 + x0
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x1
-		x3 ^= u<<13 | u>>(32-13)
-		u = x3 + x2
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x4
-		x6 ^= u<<7 | u>>(32-7)
-		u = x6 + x5
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x6
-		x4 ^= u<<13 | u>>(32-13)
-		u = x4 + x7
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x9
-		x11 ^= u<<7 | u>>(32-7)
-		u = x11 + x10
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x11
-		x9 ^= u<<13 | u>>(32-13)
-		u = x9 + x8
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x14
-		x12 ^= u<<7 | u>>(32-7)
-		u = x12 + x15
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x12
-		x14 ^= u<<13 | u>>(32-13)
-		u = x14 + x13
-		x15 ^= u<<18 | u>>(32-18)
-	}
-	x0 += j0
-	x1 += j1
-	x2 += j2
-	x3 += j3
-	x4 += j4
-	x5 += j5
-	x6 += j6
-	x7 += j7
-	x8 += j8
-	x9 += j9
-	x10 += j10
-	x11 += j11
-	x12 += j12
-	x13 += j13
-	x14 += j14
-	x15 += j15
-
-	out[0] = byte(x0)
-	out[1] = byte(x0 >> 8)
-	out[2] = byte(x0 >> 16)
-	out[3] = byte(x0 >> 24)
-
-	out[4] = byte(x1)
-	out[5] = byte(x1 >> 8)
-	out[6] = byte(x1 >> 16)
-	out[7] = byte(x1 >> 24)
-
-	out[8] = byte(x2)
-	out[9] = byte(x2 >> 8)
-	out[10] = byte(x2 >> 16)
-	out[11] = byte(x2 >> 24)
-
-	out[12] = byte(x3)
-	out[13] = byte(x3 >> 8)
-	out[14] = byte(x3 >> 16)
-	out[15] = byte(x3 >> 24)
-
-	out[16] = byte(x4)
-	out[17] = byte(x4 >> 8)
-	out[18] = byte(x4 >> 16)
-	out[19] = byte(x4 >> 24)
-
-	out[20] = byte(x5)
-	out[21] = byte(x5 >> 8)
-	out[22] = byte(x5 >> 16)
-	out[23] = byte(x5 >> 24)
-
-	out[24] = byte(x6)
-	out[25] = byte(x6 >> 8)
-	out[26] = byte(x6 >> 16)
-	out[27] = byte(x6 >> 24)
-
-	out[28] = byte(x7)
-	out[29] = byte(x7 >> 8)
-	out[30] = byte(x7 >> 16)
-	out[31] = byte(x7 >> 24)
-
-	out[32] = byte(x8)
-	out[33] = byte(x8 >> 8)
-	out[34] = byte(x8 >> 16)
-	out[35] = byte(x8 >> 24)
-
-	out[36] = byte(x9)
-	out[37] = byte(x9 >> 8)
-	out[38] = byte(x9 >> 16)
-	out[39] = byte(x9 >> 24)
-
-	out[40] = byte(x10)
-	out[41] = byte(x10 >> 8)
-	out[42] = byte(x10 >> 16)
-	out[43] = byte(x10 >> 24)
-
-	out[44] = byte(x11)
-	out[45] = byte(x11 >> 8)
-	out[46] = byte(x11 >> 16)
-	out[47] = byte(x11 >> 24)
-
-	out[48] = byte(x12)
-	out[49] = byte(x12 >> 8)
-	out[50] = byte(x12 >> 16)
-	out[51] = byte(x12 >> 24)
-
-	out[52] = byte(x13)
-	out[53] = byte(x13 >> 8)
-	out[54] = byte(x13 >> 16)
-	out[55] = byte(x13 >> 24)
-
-	out[56] = byte(x14)
-	out[57] = byte(x14 >> 8)
-	out[58] = byte(x14 >> 16)
-	out[59] = byte(x14 >> 24)
-
-	out[60] = byte(x15)
-	out[61] = byte(x15 >> 8)
-	out[62] = byte(x15 >> 16)
-	out[63] = byte(x15 >> 24)
-}
-
-// XORKeyStream crypts bytes from in to out using the given key and counters.
-// In and out must overlap entirely or not at all. Counter
-// contains the raw salsa20 counter bytes (both nonce and block counter).
-func XORKeyStream(out, in []byte, counter *[16]byte, key *[32]byte) {
-	var block [64]byte
-	var counterCopy [16]byte
-	copy(counterCopy[:], counter[:])
-
-	for len(in) >= 64 {
-		core(&block, &counterCopy, key, &Sigma)
-		for i, x := range block {
-			out[i] = in[i] ^ x
-		}
-		u := uint32(1)
-		for i := 8; i < 16; i++ {
-			u += uint32(counterCopy[i])
-			counterCopy[i] = byte(u)
-			u >>= 8
-		}
-		in = in[64:]
-		out = out[64:]
-	}
-
-	if len(in) > 0 {
-		core(&block, &counterCopy, key, &Sigma)
-		for i, v := range in {
-			out[i] = v ^ block[i]
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa/salsa_test.go b/vendor/golang.org/x/crypto/salsa20/salsa/salsa_test.go
deleted file mode 100644
index f67e94e..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa/salsa_test.go
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package salsa
-
-import "testing"
-
-func TestCore208(t *testing.T) {
-	in := [64]byte{
-		0x7e, 0x87, 0x9a, 0x21, 0x4f, 0x3e, 0xc9, 0x86,
-		0x7c, 0xa9, 0x40, 0xe6, 0x41, 0x71, 0x8f, 0x26,
-		0xba, 0xee, 0x55, 0x5b, 0x8c, 0x61, 0xc1, 0xb5,
-		0x0d, 0xf8, 0x46, 0x11, 0x6d, 0xcd, 0x3b, 0x1d,
-		0xee, 0x24, 0xf3, 0x19, 0xdf, 0x9b, 0x3d, 0x85,
-		0x14, 0x12, 0x1e, 0x4b, 0x5a, 0xc5, 0xaa, 0x32,
-		0x76, 0x02, 0x1d, 0x29, 0x09, 0xc7, 0x48, 0x29,
-		0xed, 0xeb, 0xc6, 0x8d, 0xb8, 0xb8, 0xc2, 0x5e}
-
-	out := [64]byte{
-		0xa4, 0x1f, 0x85, 0x9c, 0x66, 0x08, 0xcc, 0x99,
-		0x3b, 0x81, 0xca, 0xcb, 0x02, 0x0c, 0xef, 0x05,
-		0x04, 0x4b, 0x21, 0x81, 0xa2, 0xfd, 0x33, 0x7d,
-		0xfd, 0x7b, 0x1c, 0x63, 0x96, 0x68, 0x2f, 0x29,
-		0xb4, 0x39, 0x31, 0x68, 0xe3, 0xc9, 0xe6, 0xbc,
-		0xfe, 0x6b, 0xc5, 0xb7, 0xa0, 0x6d, 0x96, 0xba,
-		0xe4, 0x24, 0xcc, 0x10, 0x2c, 0x91, 0x74, 0x5c,
-		0x24, 0xad, 0x67, 0x3d, 0xc7, 0x61, 0x8f, 0x81,
-	}
-
-	Core208(&in, &in)
-	if in != out {
-		t.Errorf("expected %x, got %x", out, in)
-	}
-}
-
-func TestOutOfBoundsWrite(t *testing.T) {
-	// encrypted "0123456789"
-	cipherText := []byte{170, 166, 196, 104, 175, 121, 68, 44, 174, 51}
-	var counter [16]byte
-	var key [32]byte
-	want := "abcdefghij"
-	plainText := []byte(want)
-	defer func() {
-		err := recover()
-		if err == nil {
-			t.Error("XORKeyStream expected to panic on len(dst) < len(src), but didn't")
-		}
-		if plainText[3] == '3' {
-			t.Errorf("XORKeyStream did out of bounds write, want %v, got %v", want, string(plainText))
-		}
-	}()
-	XORKeyStream(plainText[:3], cipherText, &counter, &key)
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa20.go b/vendor/golang.org/x/crypto/salsa20/salsa20.go
deleted file mode 100644
index 6f9bb10..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa20.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package salsa20 implements the Salsa20 stream cipher as specified in https://cr.yp.to/snuffle/spec.pdf.
-
-Salsa20 differs from many other stream ciphers in that it is message orientated
-rather than byte orientated. Keystream blocks are not preserved between calls,
-therefore each side must encrypt/decrypt data with the same segmentation.
-
-Another aspect of this difference is that part of the counter is exposed as
-a nonce in each call. Encrypting two different messages with the same (key,
-nonce) pair leads to trivial plaintext recovery. This is analogous to
-encrypting two different messages with the same key with a traditional stream
-cipher.
-
-This package also implements XSalsa20: a version of Salsa20 with a 24-byte
-nonce as specified in https://cr.yp.to/snuffle/xsalsa-20081128.pdf. Simply
-passing a 24-byte slice as the nonce triggers XSalsa20.
-*/
-package salsa20 // import "golang.org/x/crypto/salsa20"
-
-// TODO(agl): implement XORKeyStream12 and XORKeyStream8 - the reduced round variants of Salsa20.
-
-import (
-	"golang.org/x/crypto/internal/subtle"
-	"golang.org/x/crypto/salsa20/salsa"
-)
-
-// XORKeyStream crypts bytes from in to out using the given key and nonce.
-// In and out must overlap entirely or not at all. Nonce must
-// be either 8 or 24 bytes long.
-func XORKeyStream(out, in []byte, nonce []byte, key *[32]byte) {
-	if len(out) < len(in) {
-		panic("salsa20: output smaller than input")
-	}
-	if subtle.InexactOverlap(out[:len(in)], in) {
-		panic("salsa20: invalid buffer overlap")
-	}
-
-	var subNonce [16]byte
-
-	if len(nonce) == 24 {
-		var subKey [32]byte
-		var hNonce [16]byte
-		copy(hNonce[:], nonce[:16])
-		salsa.HSalsa20(&subKey, &hNonce, key, &salsa.Sigma)
-		copy(subNonce[:], nonce[16:])
-		key = &subKey
-	} else if len(nonce) == 8 {
-		copy(subNonce[:], nonce[:])
-	} else {
-		panic("salsa20: nonce must be 8 or 24 bytes")
-	}
-
-	salsa.XORKeyStream(out, in, &subNonce, key)
-}
diff --git a/vendor/golang.org/x/crypto/salsa20/salsa20_test.go b/vendor/golang.org/x/crypto/salsa20/salsa20_test.go
deleted file mode 100644
index 0ef3328..0000000
--- a/vendor/golang.org/x/crypto/salsa20/salsa20_test.go
+++ /dev/null
@@ -1,139 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package salsa20
-
-import (
-	"bytes"
-	"encoding/hex"
-	"testing"
-)
-
-func fromHex(s string) []byte {
-	ret, err := hex.DecodeString(s)
-	if err != nil {
-		panic(err)
-	}
-	return ret
-}
-
-// testVectors was taken from set 6 of the ECRYPT test vectors:
-// http://www.ecrypt.eu.org/stream/svn/viewcvs.cgi/ecrypt/trunk/submissions/salsa20/full/verified.test-vectors?logsort=rev&rev=210&view=markup
-var testVectors = []struct {
-	key      []byte
-	iv       []byte
-	numBytes int
-	xor      []byte
-}{
-	{
-		fromHex("0053A6F94C9FF24598EB3E91E4378ADD3083D6297CCF2275C81B6EC11467BA0D"),
-		fromHex("0D74DB42A91077DE"),
-		131072,
-		fromHex("C349B6A51A3EC9B712EAED3F90D8BCEE69B7628645F251A996F55260C62EF31FD6C6B0AEA94E136C9D984AD2DF3578F78E457527B03A0450580DD874F63B1AB9"),
-	},
-	{
-		fromHex("0558ABFE51A4F74A9DF04396E93C8FE23588DB2E81D4277ACD2073C6196CBF12"),
-		fromHex("167DE44BB21980E7"),
-		131072,
-		fromHex("C3EAAF32836BACE32D04E1124231EF47E101367D6305413A0EEB07C60698A2876E4D031870A739D6FFDDD208597AFF0A47AC17EDB0167DD67EBA84F1883D4DFD"),
-	},
-	{
-		fromHex("0A5DB00356A9FC4FA2F5489BEE4194E73A8DE03386D92C7FD22578CB1E71C417"),
-		fromHex("1F86ED54BB2289F0"),
-		131072,
-		fromHex("3CD23C3DC90201ACC0CF49B440B6C417F0DC8D8410A716D5314C059E14B1A8D9A9FB8EA3D9C8DAE12B21402F674AA95C67B1FC514E994C9D3F3A6E41DFF5BBA6"),
-	},
-	{
-		fromHex("0F62B5085BAE0154A7FA4DA0F34699EC3F92E5388BDE3184D72A7DD02376C91C"),
-		fromHex("288FF65DC42B92F9"),
-		131072,
-		fromHex("E00EBCCD70D69152725F9987982178A2E2E139C7BCBE04CA8A0E99E318D9AB76F988C8549F75ADD790BA4F81C176DA653C1A043F11A958E169B6D2319F4EEC1A"),
-	},
-}
-
-func TestSalsa20(t *testing.T) {
-	var inBuf, outBuf []byte
-	var key [32]byte
-
-	for i, test := range testVectors {
-		if test.numBytes%64 != 0 {
-			t.Errorf("#%d: numBytes is not a multiple of 64", i)
-			continue
-		}
-
-		if test.numBytes > len(inBuf) {
-			inBuf = make([]byte, test.numBytes)
-			outBuf = make([]byte, test.numBytes)
-		}
-		in := inBuf[:test.numBytes]
-		out := outBuf[:test.numBytes]
-		copy(key[:], test.key)
-		XORKeyStream(out, in, test.iv, &key)
-
-		var xor [64]byte
-		for len(out) > 0 {
-			for i := 0; i < 64; i++ {
-				xor[i] ^= out[i]
-			}
-			out = out[64:]
-		}
-
-		if !bytes.Equal(xor[:], test.xor) {
-			t.Errorf("#%d: bad result", i)
-		}
-	}
-}
-
-var xSalsa20TestData = []struct {
-	in, nonce, key, out []byte
-}{
-	{
-		[]byte("Hello world!"),
-		[]byte("24-byte nonce for xsalsa"),
-		[]byte("this is 32-byte key for xsalsa20"),
-		[]byte{0x00, 0x2d, 0x45, 0x13, 0x84, 0x3f, 0xc2, 0x40, 0xc4, 0x01, 0xe5, 0x41},
-	},
-	{
-		make([]byte, 64),
-		[]byte("24-byte nonce for xsalsa"),
-		[]byte("this is 32-byte key for xsalsa20"),
-		[]byte{0x48, 0x48, 0x29, 0x7f, 0xeb, 0x1f, 0xb5, 0x2f, 0xb6,
-			0x6d, 0x81, 0x60, 0x9b, 0xd5, 0x47, 0xfa, 0xbc, 0xbe, 0x70,
-			0x26, 0xed, 0xc8, 0xb5, 0xe5, 0xe4, 0x49, 0xd0, 0x88, 0xbf,
-			0xa6, 0x9c, 0x08, 0x8f, 0x5d, 0x8d, 0xa1, 0xd7, 0x91, 0x26,
-			0x7c, 0x2c, 0x19, 0x5a, 0x7f, 0x8c, 0xae, 0x9c, 0x4b, 0x40,
-			0x50, 0xd0, 0x8c, 0xe6, 0xd3, 0xa1, 0x51, 0xec, 0x26, 0x5f,
-			0x3a, 0x58, 0xe4, 0x76, 0x48},
-	},
-}
-
-func TestXSalsa20(t *testing.T) {
-	var key [32]byte
-
-	for i, test := range xSalsa20TestData {
-		out := make([]byte, len(test.in))
-		copy(key[:], test.key)
-		XORKeyStream(out, test.in, test.nonce, &key)
-		if !bytes.Equal(out, test.out) {
-			t.Errorf("%d: expected %x, got %x", i, test.out, out)
-		}
-	}
-}
-
-var (
-	keyArray [32]byte
-	key      = &keyArray
-	nonce    [8]byte
-	msg      = make([]byte, 1<<10)
-)
-
-func BenchmarkXOR1K(b *testing.B) {
-	b.StopTimer()
-	out := make([]byte, 1024)
-	b.StartTimer()
-	for i := 0; i < b.N; i++ {
-		XORKeyStream(out, msg[:1024], nonce[:], key)
-	}
-	b.SetBytes(1024)
-}
diff --git a/vendor/golang.org/x/crypto/scrypt/example_test.go b/vendor/golang.org/x/crypto/scrypt/example_test.go
deleted file mode 100644
index 6736479..0000000
--- a/vendor/golang.org/x/crypto/scrypt/example_test.go
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package scrypt_test
-
-import (
-	"encoding/base64"
-	"fmt"
-	"log"
-
-	"golang.org/x/crypto/scrypt"
-)
-
-func Example() {
-	// DO NOT use this salt value; generate your own random salt. 8 bytes is
-	// a good length.
-	salt := []byte{0xc8, 0x28, 0xf2, 0x58, 0xa7, 0x6a, 0xad, 0x7b}
-
-	dk, err := scrypt.Key([]byte("some password"), salt, 1<<15, 8, 1, 32)
-	if err != nil {
-		log.Fatal(err)
-	}
-	fmt.Println(base64.StdEncoding.EncodeToString(dk))
-	// Output: lGnMz8io0AUkfzn6Pls1qX20Vs7PGN6sbYQ2TQgY12M=
-}
diff --git a/vendor/golang.org/x/crypto/scrypt/scrypt.go b/vendor/golang.org/x/crypto/scrypt/scrypt.go
deleted file mode 100644
index 9b25b5a..0000000
--- a/vendor/golang.org/x/crypto/scrypt/scrypt.go
+++ /dev/null
@@ -1,244 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package scrypt implements the scrypt key derivation function as defined in
-// Colin Percival's paper "Stronger Key Derivation via Sequential Memory-Hard
-// Functions" (https://www.tarsnap.com/scrypt/scrypt.pdf).
-package scrypt // import "golang.org/x/crypto/scrypt"
-
-import (
-	"crypto/sha256"
-	"errors"
-
-	"golang.org/x/crypto/pbkdf2"
-)
-
-const maxInt = int(^uint(0) >> 1)
-
-// blockCopy copies n numbers from src into dst.
-func blockCopy(dst, src []uint32, n int) {
-	copy(dst, src[:n])
-}
-
-// blockXOR XORs numbers from dst with n numbers from src.
-func blockXOR(dst, src []uint32, n int) {
-	for i, v := range src[:n] {
-		dst[i] ^= v
-	}
-}
-
-// salsaXOR applies Salsa20/8 to the XOR of 16 numbers from tmp and in,
-// and puts the result into both both tmp and out.
-func salsaXOR(tmp *[16]uint32, in, out []uint32) {
-	w0 := tmp[0] ^ in[0]
-	w1 := tmp[1] ^ in[1]
-	w2 := tmp[2] ^ in[2]
-	w3 := tmp[3] ^ in[3]
-	w4 := tmp[4] ^ in[4]
-	w5 := tmp[5] ^ in[5]
-	w6 := tmp[6] ^ in[6]
-	w7 := tmp[7] ^ in[7]
-	w8 := tmp[8] ^ in[8]
-	w9 := tmp[9] ^ in[9]
-	w10 := tmp[10] ^ in[10]
-	w11 := tmp[11] ^ in[11]
-	w12 := tmp[12] ^ in[12]
-	w13 := tmp[13] ^ in[13]
-	w14 := tmp[14] ^ in[14]
-	w15 := tmp[15] ^ in[15]
-
-	x0, x1, x2, x3, x4, x5, x6, x7, x8 := w0, w1, w2, w3, w4, w5, w6, w7, w8
-	x9, x10, x11, x12, x13, x14, x15 := w9, w10, w11, w12, w13, w14, w15
-
-	for i := 0; i < 8; i += 2 {
-		u := x0 + x12
-		x4 ^= u<<7 | u>>(32-7)
-		u = x4 + x0
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x4
-		x12 ^= u<<13 | u>>(32-13)
-		u = x12 + x8
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x1
-		x9 ^= u<<7 | u>>(32-7)
-		u = x9 + x5
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x9
-		x1 ^= u<<13 | u>>(32-13)
-		u = x1 + x13
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x6
-		x14 ^= u<<7 | u>>(32-7)
-		u = x14 + x10
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x14
-		x6 ^= u<<13 | u>>(32-13)
-		u = x6 + x2
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x11
-		x3 ^= u<<7 | u>>(32-7)
-		u = x3 + x15
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x3
-		x11 ^= u<<13 | u>>(32-13)
-		u = x11 + x7
-		x15 ^= u<<18 | u>>(32-18)
-
-		u = x0 + x3
-		x1 ^= u<<7 | u>>(32-7)
-		u = x1 + x0
-		x2 ^= u<<9 | u>>(32-9)
-		u = x2 + x1
-		x3 ^= u<<13 | u>>(32-13)
-		u = x3 + x2
-		x0 ^= u<<18 | u>>(32-18)
-
-		u = x5 + x4
-		x6 ^= u<<7 | u>>(32-7)
-		u = x6 + x5
-		x7 ^= u<<9 | u>>(32-9)
-		u = x7 + x6
-		x4 ^= u<<13 | u>>(32-13)
-		u = x4 + x7
-		x5 ^= u<<18 | u>>(32-18)
-
-		u = x10 + x9
-		x11 ^= u<<7 | u>>(32-7)
-		u = x11 + x10
-		x8 ^= u<<9 | u>>(32-9)
-		u = x8 + x11
-		x9 ^= u<<13 | u>>(32-13)
-		u = x9 + x8
-		x10 ^= u<<18 | u>>(32-18)
-
-		u = x15 + x14
-		x12 ^= u<<7 | u>>(32-7)
-		u = x12 + x15
-		x13 ^= u<<9 | u>>(32-9)
-		u = x13 + x12
-		x14 ^= u<<13 | u>>(32-13)
-		u = x14 + x13
-		x15 ^= u<<18 | u>>(32-18)
-	}
-	x0 += w0
-	x1 += w1
-	x2 += w2
-	x3 += w3
-	x4 += w4
-	x5 += w5
-	x6 += w6
-	x7 += w7
-	x8 += w8
-	x9 += w9
-	x10 += w10
-	x11 += w11
-	x12 += w12
-	x13 += w13
-	x14 += w14
-	x15 += w15
-
-	out[0], tmp[0] = x0, x0
-	out[1], tmp[1] = x1, x1
-	out[2], tmp[2] = x2, x2
-	out[3], tmp[3] = x3, x3
-	out[4], tmp[4] = x4, x4
-	out[5], tmp[5] = x5, x5
-	out[6], tmp[6] = x6, x6
-	out[7], tmp[7] = x7, x7
-	out[8], tmp[8] = x8, x8
-	out[9], tmp[9] = x9, x9
-	out[10], tmp[10] = x10, x10
-	out[11], tmp[11] = x11, x11
-	out[12], tmp[12] = x12, x12
-	out[13], tmp[13] = x13, x13
-	out[14], tmp[14] = x14, x14
-	out[15], tmp[15] = x15, x15
-}
-
-func blockMix(tmp *[16]uint32, in, out []uint32, r int) {
-	blockCopy(tmp[:], in[(2*r-1)*16:], 16)
-	for i := 0; i < 2*r; i += 2 {
-		salsaXOR(tmp, in[i*16:], out[i*8:])
-		salsaXOR(tmp, in[i*16+16:], out[i*8+r*16:])
-	}
-}
-
-func integer(b []uint32, r int) uint64 {
-	j := (2*r - 1) * 16
-	return uint64(b[j]) | uint64(b[j+1])<<32
-}
-
-func smix(b []byte, r, N int, v, xy []uint32) {
-	var tmp [16]uint32
-	x := xy
-	y := xy[32*r:]
-
-	j := 0
-	for i := 0; i < 32*r; i++ {
-		x[i] = uint32(b[j]) | uint32(b[j+1])<<8 | uint32(b[j+2])<<16 | uint32(b[j+3])<<24
-		j += 4
-	}
-	for i := 0; i < N; i += 2 {
-		blockCopy(v[i*(32*r):], x, 32*r)
-		blockMix(&tmp, x, y, r)
-
-		blockCopy(v[(i+1)*(32*r):], y, 32*r)
-		blockMix(&tmp, y, x, r)
-	}
-	for i := 0; i < N; i += 2 {
-		j := int(integer(x, r) & uint64(N-1))
-		blockXOR(x, v[j*(32*r):], 32*r)
-		blockMix(&tmp, x, y, r)
-
-		j = int(integer(y, r) & uint64(N-1))
-		blockXOR(y, v[j*(32*r):], 32*r)
-		blockMix(&tmp, y, x, r)
-	}
-	j = 0
-	for _, v := range x[:32*r] {
-		b[j+0] = byte(v >> 0)
-		b[j+1] = byte(v >> 8)
-		b[j+2] = byte(v >> 16)
-		b[j+3] = byte(v >> 24)
-		j += 4
-	}
-}
-
-// Key derives a key from the password, salt, and cost parameters, returning
-// a byte slice of length keyLen that can be used as cryptographic key.
-//
-// N is a CPU/memory cost parameter, which must be a power of two greater than 1.
-// r and p must satisfy r * p < 2³⁰. If the parameters do not satisfy the
-// limits, the function returns a nil byte slice and an error.
-//
-// For example, you can get a derived key for e.g. AES-256 (which needs a
-// 32-byte key) by doing:
-//
-//      dk, err := scrypt.Key([]byte("some password"), salt, 32768, 8, 1, 32)
-//
-// The recommended parameters for interactive logins as of 2017 are N=32768, r=8
-// and p=1. The parameters N, r, and p should be increased as memory latency and
-// CPU parallelism increases; consider setting N to the highest power of 2 you
-// can derive within 100 milliseconds. Remember to get a good random salt.
-func Key(password, salt []byte, N, r, p, keyLen int) ([]byte, error) {
-	if N <= 1 || N&(N-1) != 0 {
-		return nil, errors.New("scrypt: N must be > 1 and a power of 2")
-	}
-	if uint64(r)*uint64(p) >= 1<<30 || r > maxInt/128/p || r > maxInt/256 || N > maxInt/128/r {
-		return nil, errors.New("scrypt: parameters are too large")
-	}
-
-	xy := make([]uint32, 64*r)
-	v := make([]uint32, 32*N*r)
-	b := pbkdf2.Key(password, salt, 1, p*128*r, sha256.New)
-
-	for i := 0; i < p; i++ {
-		smix(b[i*128*r:], r, N, v, xy)
-	}
-
-	return pbkdf2.Key(password, b, 1, keyLen, sha256.New), nil
-}
diff --git a/vendor/golang.org/x/crypto/scrypt/scrypt_test.go b/vendor/golang.org/x/crypto/scrypt/scrypt_test.go
deleted file mode 100644
index 766ed8d..0000000
--- a/vendor/golang.org/x/crypto/scrypt/scrypt_test.go
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package scrypt
-
-import (
-	"bytes"
-	"testing"
-)
-
-type testVector struct {
-	password string
-	salt     string
-	N, r, p  int
-	output   []byte
-}
-
-var good = []testVector{
-	{
-		"password",
-		"salt",
-		2, 10, 10,
-		[]byte{
-			0x48, 0x2c, 0x85, 0x8e, 0x22, 0x90, 0x55, 0xe6, 0x2f,
-			0x41, 0xe0, 0xec, 0x81, 0x9a, 0x5e, 0xe1, 0x8b, 0xdb,
-			0x87, 0x25, 0x1a, 0x53, 0x4f, 0x75, 0xac, 0xd9, 0x5a,
-			0xc5, 0xe5, 0xa, 0xa1, 0x5f,
-		},
-	},
-	{
-		"password",
-		"salt",
-		16, 100, 100,
-		[]byte{
-			0x88, 0xbd, 0x5e, 0xdb, 0x52, 0xd1, 0xdd, 0x0, 0x18,
-			0x87, 0x72, 0xad, 0x36, 0x17, 0x12, 0x90, 0x22, 0x4e,
-			0x74, 0x82, 0x95, 0x25, 0xb1, 0x8d, 0x73, 0x23, 0xa5,
-			0x7f, 0x91, 0x96, 0x3c, 0x37,
-		},
-	},
-	{
-		"this is a long \000 password",
-		"and this is a long \000 salt",
-		16384, 8, 1,
-		[]byte{
-			0xc3, 0xf1, 0x82, 0xee, 0x2d, 0xec, 0x84, 0x6e, 0x70,
-			0xa6, 0x94, 0x2f, 0xb5, 0x29, 0x98, 0x5a, 0x3a, 0x09,
-			0x76, 0x5e, 0xf0, 0x4c, 0x61, 0x29, 0x23, 0xb1, 0x7f,
-			0x18, 0x55, 0x5a, 0x37, 0x07, 0x6d, 0xeb, 0x2b, 0x98,
-			0x30, 0xd6, 0x9d, 0xe5, 0x49, 0x26, 0x51, 0xe4, 0x50,
-			0x6a, 0xe5, 0x77, 0x6d, 0x96, 0xd4, 0x0f, 0x67, 0xaa,
-			0xee, 0x37, 0xe1, 0x77, 0x7b, 0x8a, 0xd5, 0xc3, 0x11,
-			0x14, 0x32, 0xbb, 0x3b, 0x6f, 0x7e, 0x12, 0x64, 0x40,
-			0x18, 0x79, 0xe6, 0x41, 0xae,
-		},
-	},
-	{
-		"p",
-		"s",
-		2, 1, 1,
-		[]byte{
-			0x48, 0xb0, 0xd2, 0xa8, 0xa3, 0x27, 0x26, 0x11, 0x98,
-			0x4c, 0x50, 0xeb, 0xd6, 0x30, 0xaf, 0x52,
-		},
-	},
-
-	{
-		"",
-		"",
-		16, 1, 1,
-		[]byte{
-			0x77, 0xd6, 0x57, 0x62, 0x38, 0x65, 0x7b, 0x20, 0x3b,
-			0x19, 0xca, 0x42, 0xc1, 0x8a, 0x04, 0x97, 0xf1, 0x6b,
-			0x48, 0x44, 0xe3, 0x07, 0x4a, 0xe8, 0xdf, 0xdf, 0xfa,
-			0x3f, 0xed, 0xe2, 0x14, 0x42, 0xfc, 0xd0, 0x06, 0x9d,
-			0xed, 0x09, 0x48, 0xf8, 0x32, 0x6a, 0x75, 0x3a, 0x0f,
-			0xc8, 0x1f, 0x17, 0xe8, 0xd3, 0xe0, 0xfb, 0x2e, 0x0d,
-			0x36, 0x28, 0xcf, 0x35, 0xe2, 0x0c, 0x38, 0xd1, 0x89,
-			0x06,
-		},
-	},
-	{
-		"password",
-		"NaCl",
-		1024, 8, 16,
-		[]byte{
-			0xfd, 0xba, 0xbe, 0x1c, 0x9d, 0x34, 0x72, 0x00, 0x78,
-			0x56, 0xe7, 0x19, 0x0d, 0x01, 0xe9, 0xfe, 0x7c, 0x6a,
-			0xd7, 0xcb, 0xc8, 0x23, 0x78, 0x30, 0xe7, 0x73, 0x76,
-			0x63, 0x4b, 0x37, 0x31, 0x62, 0x2e, 0xaf, 0x30, 0xd9,
-			0x2e, 0x22, 0xa3, 0x88, 0x6f, 0xf1, 0x09, 0x27, 0x9d,
-			0x98, 0x30, 0xda, 0xc7, 0x27, 0xaf, 0xb9, 0x4a, 0x83,
-			0xee, 0x6d, 0x83, 0x60, 0xcb, 0xdf, 0xa2, 0xcc, 0x06,
-			0x40,
-		},
-	},
-	{
-		"pleaseletmein", "SodiumChloride",
-		16384, 8, 1,
-		[]byte{
-			0x70, 0x23, 0xbd, 0xcb, 0x3a, 0xfd, 0x73, 0x48, 0x46,
-			0x1c, 0x06, 0xcd, 0x81, 0xfd, 0x38, 0xeb, 0xfd, 0xa8,
-			0xfb, 0xba, 0x90, 0x4f, 0x8e, 0x3e, 0xa9, 0xb5, 0x43,
-			0xf6, 0x54, 0x5d, 0xa1, 0xf2, 0xd5, 0x43, 0x29, 0x55,
-			0x61, 0x3f, 0x0f, 0xcf, 0x62, 0xd4, 0x97, 0x05, 0x24,
-			0x2a, 0x9a, 0xf9, 0xe6, 0x1e, 0x85, 0xdc, 0x0d, 0x65,
-			0x1e, 0x40, 0xdf, 0xcf, 0x01, 0x7b, 0x45, 0x57, 0x58,
-			0x87,
-		},
-	},
-	/*
-		// Disabled: needs 1 GiB RAM and takes too long for a simple test.
-		{
-			"pleaseletmein", "SodiumChloride",
-			1048576, 8, 1,
-			[]byte{
-				0x21, 0x01, 0xcb, 0x9b, 0x6a, 0x51, 0x1a, 0xae, 0xad,
-				0xdb, 0xbe, 0x09, 0xcf, 0x70, 0xf8, 0x81, 0xec, 0x56,
-				0x8d, 0x57, 0x4a, 0x2f, 0xfd, 0x4d, 0xab, 0xe5, 0xee,
-				0x98, 0x20, 0xad, 0xaa, 0x47, 0x8e, 0x56, 0xfd, 0x8f,
-				0x4b, 0xa5, 0xd0, 0x9f, 0xfa, 0x1c, 0x6d, 0x92, 0x7c,
-				0x40, 0xf4, 0xc3, 0x37, 0x30, 0x40, 0x49, 0xe8, 0xa9,
-				0x52, 0xfb, 0xcb, 0xf4, 0x5c, 0x6f, 0xa7, 0x7a, 0x41,
-				0xa4,
-			},
-		},
-	*/
-}
-
-var bad = []testVector{
-	{"p", "s", 0, 1, 1, nil},                    // N == 0
-	{"p", "s", 1, 1, 1, nil},                    // N == 1
-	{"p", "s", 7, 8, 1, nil},                    // N is not power of 2
-	{"p", "s", 16, maxInt / 2, maxInt / 2, nil}, // p * r too large
-}
-
-func TestKey(t *testing.T) {
-	for i, v := range good {
-		k, err := Key([]byte(v.password), []byte(v.salt), v.N, v.r, v.p, len(v.output))
-		if err != nil {
-			t.Errorf("%d: got unexpected error: %s", i, err)
-		}
-		if !bytes.Equal(k, v.output) {
-			t.Errorf("%d: expected %x, got %x", i, v.output, k)
-		}
-	}
-	for i, v := range bad {
-		_, err := Key([]byte(v.password), []byte(v.salt), v.N, v.r, v.p, 32)
-		if err == nil {
-			t.Errorf("%d: expected error, got nil", i)
-		}
-	}
-}
-
-var sink []byte
-
-func BenchmarkKey(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		sink, _ = Key([]byte("password"), []byte("salt"), 1<<15, 8, 1, 64)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/sha3/doc.go b/vendor/golang.org/x/crypto/sha3/doc.go
deleted file mode 100644
index a0ee3ae..0000000
--- a/vendor/golang.org/x/crypto/sha3/doc.go
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package sha3 implements the SHA-3 fixed-output-length hash functions and
-// the SHAKE variable-output-length hash functions defined by FIPS-202.
-//
-// Both types of hash function use the "sponge" construction and the Keccak
-// permutation. For a detailed specification see http://keccak.noekeon.org/
-//
-//
-// Guidance
-//
-// If you aren't sure what function you need, use SHAKE256 with at least 64
-// bytes of output. The SHAKE instances are faster than the SHA3 instances;
-// the latter have to allocate memory to conform to the hash.Hash interface.
-//
-// If you need a secret-key MAC (message authentication code), prepend the
-// secret key to the input, hash with SHAKE256 and read at least 32 bytes of
-// output.
-//
-//
-// Security strengths
-//
-// The SHA3-x (x equals 224, 256, 384, or 512) functions have a security
-// strength against preimage attacks of x bits. Since they only produce "x"
-// bits of output, their collision-resistance is only "x/2" bits.
-//
-// The SHAKE-256 and -128 functions have a generic security strength of 256 and
-// 128 bits against all attacks, provided that at least 2x bits of their output
-// is used.  Requesting more than 64 or 32 bytes of output, respectively, does
-// not increase the collision-resistance of the SHAKE functions.
-//
-//
-// The sponge construction
-//
-// A sponge builds a pseudo-random function from a public pseudo-random
-// permutation, by applying the permutation to a state of "rate + capacity"
-// bytes, but hiding "capacity" of the bytes.
-//
-// A sponge starts out with a zero state. To hash an input using a sponge, up
-// to "rate" bytes of the input are XORed into the sponge's state. The sponge
-// is then "full" and the permutation is applied to "empty" it. This process is
-// repeated until all the input has been "absorbed". The input is then padded.
-// The digest is "squeezed" from the sponge in the same way, except that output
-// output is copied out instead of input being XORed in.
-//
-// A sponge is parameterized by its generic security strength, which is equal
-// to half its capacity; capacity + rate is equal to the permutation's width.
-// Since the KeccakF-1600 permutation is 1600 bits (200 bytes) wide, this means
-// that the security strength of a sponge instance is equal to (1600 - bitrate) / 2.
-//
-//
-// Recommendations
-//
-// The SHAKE functions are recommended for most new uses. They can produce
-// output of arbitrary length. SHAKE256, with an output length of at least
-// 64 bytes, provides 256-bit security against all attacks.  The Keccak team
-// recommends it for most applications upgrading from SHA2-512. (NIST chose a
-// much stronger, but much slower, sponge instance for SHA3-512.)
-//
-// The SHA-3 functions are "drop-in" replacements for the SHA-2 functions.
-// They produce output of the same length, with the same security strengths
-// against all attacks. This means, in particular, that SHA3-256 only has
-// 128-bit collision resistance, because its output length is 32 bytes.
-package sha3 // import "golang.org/x/crypto/sha3"
diff --git a/vendor/golang.org/x/crypto/sha3/hashes.go b/vendor/golang.org/x/crypto/sha3/hashes.go
deleted file mode 100644
index 4fb38c0..0000000
--- a/vendor/golang.org/x/crypto/sha3/hashes.go
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sha3
-
-// This file provides functions for creating instances of the SHA-3
-// and SHAKE hash functions, as well as utility functions for hashing
-// bytes.
-
-import (
-	"hash"
-)
-
-// New224 creates a new SHA3-224 hash.
-// Its generic security strength is 224 bits against preimage attacks,
-// and 112 bits against collision attacks.
-func New224() hash.Hash {
-	if h := new224Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 144, outputLen: 28, dsbyte: 0x06}
-}
-
-// New256 creates a new SHA3-256 hash.
-// Its generic security strength is 256 bits against preimage attacks,
-// and 128 bits against collision attacks.
-func New256() hash.Hash {
-	if h := new256Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 136, outputLen: 32, dsbyte: 0x06}
-}
-
-// New384 creates a new SHA3-384 hash.
-// Its generic security strength is 384 bits against preimage attacks,
-// and 192 bits against collision attacks.
-func New384() hash.Hash {
-	if h := new384Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 104, outputLen: 48, dsbyte: 0x06}
-}
-
-// New512 creates a new SHA3-512 hash.
-// Its generic security strength is 512 bits against preimage attacks,
-// and 256 bits against collision attacks.
-func New512() hash.Hash {
-	if h := new512Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 72, outputLen: 64, dsbyte: 0x06}
-}
-
-// NewLegacyKeccak256 creates a new Keccak-256 hash.
-//
-// Only use this function if you require compatibility with an existing cryptosystem
-// that uses non-standard padding. All other users should use New256 instead.
-func NewLegacyKeccak256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x01} }
-
-// Sum224 returns the SHA3-224 digest of the data.
-func Sum224(data []byte) (digest [28]byte) {
-	h := New224()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
-}
-
-// Sum256 returns the SHA3-256 digest of the data.
-func Sum256(data []byte) (digest [32]byte) {
-	h := New256()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
-}
-
-// Sum384 returns the SHA3-384 digest of the data.
-func Sum384(data []byte) (digest [48]byte) {
-	h := New384()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
-}
-
-// Sum512 returns the SHA3-512 digest of the data.
-func Sum512(data []byte) (digest [64]byte) {
-	h := New512()
-	h.Write(data)
-	h.Sum(digest[:0])
-	return
-}
diff --git a/vendor/golang.org/x/crypto/sha3/hashes_generic.go b/vendor/golang.org/x/crypto/sha3/hashes_generic.go
deleted file mode 100644
index c4ff3f6..0000000
--- a/vendor/golang.org/x/crypto/sha3/hashes_generic.go
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//+build gccgo appengine !s390x
-
-package sha3
-
-import (
-	"hash"
-)
-
-// new224Asm returns an assembly implementation of SHA3-224 if available,
-// otherwise it returns nil.
-func new224Asm() hash.Hash { return nil }
-
-// new256Asm returns an assembly implementation of SHA3-256 if available,
-// otherwise it returns nil.
-func new256Asm() hash.Hash { return nil }
-
-// new384Asm returns an assembly implementation of SHA3-384 if available,
-// otherwise it returns nil.
-func new384Asm() hash.Hash { return nil }
-
-// new512Asm returns an assembly implementation of SHA3-512 if available,
-// otherwise it returns nil.
-func new512Asm() hash.Hash { return nil }
diff --git a/vendor/golang.org/x/crypto/sha3/keccakf.go b/vendor/golang.org/x/crypto/sha3/keccakf.go
deleted file mode 100644
index 46d03ed..0000000
--- a/vendor/golang.org/x/crypto/sha3/keccakf.go
+++ /dev/null
@@ -1,412 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//  +build !amd64 appengine gccgo
-
-package sha3
-
-// rc stores the round constants for use in the ι step.
-var rc = [24]uint64{
-	0x0000000000000001,
-	0x0000000000008082,
-	0x800000000000808A,
-	0x8000000080008000,
-	0x000000000000808B,
-	0x0000000080000001,
-	0x8000000080008081,
-	0x8000000000008009,
-	0x000000000000008A,
-	0x0000000000000088,
-	0x0000000080008009,
-	0x000000008000000A,
-	0x000000008000808B,
-	0x800000000000008B,
-	0x8000000000008089,
-	0x8000000000008003,
-	0x8000000000008002,
-	0x8000000000000080,
-	0x000000000000800A,
-	0x800000008000000A,
-	0x8000000080008081,
-	0x8000000000008080,
-	0x0000000080000001,
-	0x8000000080008008,
-}
-
-// keccakF1600 applies the Keccak permutation to a 1600b-wide
-// state represented as a slice of 25 uint64s.
-func keccakF1600(a *[25]uint64) {
-	// Implementation translated from Keccak-inplace.c
-	// in the keccak reference code.
-	var t, bc0, bc1, bc2, bc3, bc4, d0, d1, d2, d3, d4 uint64
-
-	for i := 0; i < 24; i += 4 {
-		// Combines the 5 steps in each round into 2 steps.
-		// Unrolls 4 rounds per loop and spreads some steps across rounds.
-
-		// Round 1
-		bc0 = a[0] ^ a[5] ^ a[10] ^ a[15] ^ a[20]
-		bc1 = a[1] ^ a[6] ^ a[11] ^ a[16] ^ a[21]
-		bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22]
-		bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23]
-		bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24]
-		d0 = bc4 ^ (bc1<<1 | bc1>>63)
-		d1 = bc0 ^ (bc2<<1 | bc2>>63)
-		d2 = bc1 ^ (bc3<<1 | bc3>>63)
-		d3 = bc2 ^ (bc4<<1 | bc4>>63)
-		d4 = bc3 ^ (bc0<<1 | bc0>>63)
-
-		bc0 = a[0] ^ d0
-		t = a[6] ^ d1
-		bc1 = t<<44 | t>>(64-44)
-		t = a[12] ^ d2
-		bc2 = t<<43 | t>>(64-43)
-		t = a[18] ^ d3
-		bc3 = t<<21 | t>>(64-21)
-		t = a[24] ^ d4
-		bc4 = t<<14 | t>>(64-14)
-		a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i]
-		a[6] = bc1 ^ (bc3 &^ bc2)
-		a[12] = bc2 ^ (bc4 &^ bc3)
-		a[18] = bc3 ^ (bc0 &^ bc4)
-		a[24] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[10] ^ d0
-		bc2 = t<<3 | t>>(64-3)
-		t = a[16] ^ d1
-		bc3 = t<<45 | t>>(64-45)
-		t = a[22] ^ d2
-		bc4 = t<<61 | t>>(64-61)
-		t = a[3] ^ d3
-		bc0 = t<<28 | t>>(64-28)
-		t = a[9] ^ d4
-		bc1 = t<<20 | t>>(64-20)
-		a[10] = bc0 ^ (bc2 &^ bc1)
-		a[16] = bc1 ^ (bc3 &^ bc2)
-		a[22] = bc2 ^ (bc4 &^ bc3)
-		a[3] = bc3 ^ (bc0 &^ bc4)
-		a[9] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[20] ^ d0
-		bc4 = t<<18 | t>>(64-18)
-		t = a[1] ^ d1
-		bc0 = t<<1 | t>>(64-1)
-		t = a[7] ^ d2
-		bc1 = t<<6 | t>>(64-6)
-		t = a[13] ^ d3
-		bc2 = t<<25 | t>>(64-25)
-		t = a[19] ^ d4
-		bc3 = t<<8 | t>>(64-8)
-		a[20] = bc0 ^ (bc2 &^ bc1)
-		a[1] = bc1 ^ (bc3 &^ bc2)
-		a[7] = bc2 ^ (bc4 &^ bc3)
-		a[13] = bc3 ^ (bc0 &^ bc4)
-		a[19] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[5] ^ d0
-		bc1 = t<<36 | t>>(64-36)
-		t = a[11] ^ d1
-		bc2 = t<<10 | t>>(64-10)
-		t = a[17] ^ d2
-		bc3 = t<<15 | t>>(64-15)
-		t = a[23] ^ d3
-		bc4 = t<<56 | t>>(64-56)
-		t = a[4] ^ d4
-		bc0 = t<<27 | t>>(64-27)
-		a[5] = bc0 ^ (bc2 &^ bc1)
-		a[11] = bc1 ^ (bc3 &^ bc2)
-		a[17] = bc2 ^ (bc4 &^ bc3)
-		a[23] = bc3 ^ (bc0 &^ bc4)
-		a[4] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[15] ^ d0
-		bc3 = t<<41 | t>>(64-41)
-		t = a[21] ^ d1
-		bc4 = t<<2 | t>>(64-2)
-		t = a[2] ^ d2
-		bc0 = t<<62 | t>>(64-62)
-		t = a[8] ^ d3
-		bc1 = t<<55 | t>>(64-55)
-		t = a[14] ^ d4
-		bc2 = t<<39 | t>>(64-39)
-		a[15] = bc0 ^ (bc2 &^ bc1)
-		a[21] = bc1 ^ (bc3 &^ bc2)
-		a[2] = bc2 ^ (bc4 &^ bc3)
-		a[8] = bc3 ^ (bc0 &^ bc4)
-		a[14] = bc4 ^ (bc1 &^ bc0)
-
-		// Round 2
-		bc0 = a[0] ^ a[5] ^ a[10] ^ a[15] ^ a[20]
-		bc1 = a[1] ^ a[6] ^ a[11] ^ a[16] ^ a[21]
-		bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22]
-		bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23]
-		bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24]
-		d0 = bc4 ^ (bc1<<1 | bc1>>63)
-		d1 = bc0 ^ (bc2<<1 | bc2>>63)
-		d2 = bc1 ^ (bc3<<1 | bc3>>63)
-		d3 = bc2 ^ (bc4<<1 | bc4>>63)
-		d4 = bc3 ^ (bc0<<1 | bc0>>63)
-
-		bc0 = a[0] ^ d0
-		t = a[16] ^ d1
-		bc1 = t<<44 | t>>(64-44)
-		t = a[7] ^ d2
-		bc2 = t<<43 | t>>(64-43)
-		t = a[23] ^ d3
-		bc3 = t<<21 | t>>(64-21)
-		t = a[14] ^ d4
-		bc4 = t<<14 | t>>(64-14)
-		a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+1]
-		a[16] = bc1 ^ (bc3 &^ bc2)
-		a[7] = bc2 ^ (bc4 &^ bc3)
-		a[23] = bc3 ^ (bc0 &^ bc4)
-		a[14] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[20] ^ d0
-		bc2 = t<<3 | t>>(64-3)
-		t = a[11] ^ d1
-		bc3 = t<<45 | t>>(64-45)
-		t = a[2] ^ d2
-		bc4 = t<<61 | t>>(64-61)
-		t = a[18] ^ d3
-		bc0 = t<<28 | t>>(64-28)
-		t = a[9] ^ d4
-		bc1 = t<<20 | t>>(64-20)
-		a[20] = bc0 ^ (bc2 &^ bc1)
-		a[11] = bc1 ^ (bc3 &^ bc2)
-		a[2] = bc2 ^ (bc4 &^ bc3)
-		a[18] = bc3 ^ (bc0 &^ bc4)
-		a[9] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[15] ^ d0
-		bc4 = t<<18 | t>>(64-18)
-		t = a[6] ^ d1
-		bc0 = t<<1 | t>>(64-1)
-		t = a[22] ^ d2
-		bc1 = t<<6 | t>>(64-6)
-		t = a[13] ^ d3
-		bc2 = t<<25 | t>>(64-25)
-		t = a[4] ^ d4
-		bc3 = t<<8 | t>>(64-8)
-		a[15] = bc0 ^ (bc2 &^ bc1)
-		a[6] = bc1 ^ (bc3 &^ bc2)
-		a[22] = bc2 ^ (bc4 &^ bc3)
-		a[13] = bc3 ^ (bc0 &^ bc4)
-		a[4] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[10] ^ d0
-		bc1 = t<<36 | t>>(64-36)
-		t = a[1] ^ d1
-		bc2 = t<<10 | t>>(64-10)
-		t = a[17] ^ d2
-		bc3 = t<<15 | t>>(64-15)
-		t = a[8] ^ d3
-		bc4 = t<<56 | t>>(64-56)
-		t = a[24] ^ d4
-		bc0 = t<<27 | t>>(64-27)
-		a[10] = bc0 ^ (bc2 &^ bc1)
-		a[1] = bc1 ^ (bc3 &^ bc2)
-		a[17] = bc2 ^ (bc4 &^ bc3)
-		a[8] = bc3 ^ (bc0 &^ bc4)
-		a[24] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[5] ^ d0
-		bc3 = t<<41 | t>>(64-41)
-		t = a[21] ^ d1
-		bc4 = t<<2 | t>>(64-2)
-		t = a[12] ^ d2
-		bc0 = t<<62 | t>>(64-62)
-		t = a[3] ^ d3
-		bc1 = t<<55 | t>>(64-55)
-		t = a[19] ^ d4
-		bc2 = t<<39 | t>>(64-39)
-		a[5] = bc0 ^ (bc2 &^ bc1)
-		a[21] = bc1 ^ (bc3 &^ bc2)
-		a[12] = bc2 ^ (bc4 &^ bc3)
-		a[3] = bc3 ^ (bc0 &^ bc4)
-		a[19] = bc4 ^ (bc1 &^ bc0)
-
-		// Round 3
-		bc0 = a[0] ^ a[5] ^ a[10] ^ a[15] ^ a[20]
-		bc1 = a[1] ^ a[6] ^ a[11] ^ a[16] ^ a[21]
-		bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22]
-		bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23]
-		bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24]
-		d0 = bc4 ^ (bc1<<1 | bc1>>63)
-		d1 = bc0 ^ (bc2<<1 | bc2>>63)
-		d2 = bc1 ^ (bc3<<1 | bc3>>63)
-		d3 = bc2 ^ (bc4<<1 | bc4>>63)
-		d4 = bc3 ^ (bc0<<1 | bc0>>63)
-
-		bc0 = a[0] ^ d0
-		t = a[11] ^ d1
-		bc1 = t<<44 | t>>(64-44)
-		t = a[22] ^ d2
-		bc2 = t<<43 | t>>(64-43)
-		t = a[8] ^ d3
-		bc3 = t<<21 | t>>(64-21)
-		t = a[19] ^ d4
-		bc4 = t<<14 | t>>(64-14)
-		a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+2]
-		a[11] = bc1 ^ (bc3 &^ bc2)
-		a[22] = bc2 ^ (bc4 &^ bc3)
-		a[8] = bc3 ^ (bc0 &^ bc4)
-		a[19] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[15] ^ d0
-		bc2 = t<<3 | t>>(64-3)
-		t = a[1] ^ d1
-		bc3 = t<<45 | t>>(64-45)
-		t = a[12] ^ d2
-		bc4 = t<<61 | t>>(64-61)
-		t = a[23] ^ d3
-		bc0 = t<<28 | t>>(64-28)
-		t = a[9] ^ d4
-		bc1 = t<<20 | t>>(64-20)
-		a[15] = bc0 ^ (bc2 &^ bc1)
-		a[1] = bc1 ^ (bc3 &^ bc2)
-		a[12] = bc2 ^ (bc4 &^ bc3)
-		a[23] = bc3 ^ (bc0 &^ bc4)
-		a[9] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[5] ^ d0
-		bc4 = t<<18 | t>>(64-18)
-		t = a[16] ^ d1
-		bc0 = t<<1 | t>>(64-1)
-		t = a[2] ^ d2
-		bc1 = t<<6 | t>>(64-6)
-		t = a[13] ^ d3
-		bc2 = t<<25 | t>>(64-25)
-		t = a[24] ^ d4
-		bc3 = t<<8 | t>>(64-8)
-		a[5] = bc0 ^ (bc2 &^ bc1)
-		a[16] = bc1 ^ (bc3 &^ bc2)
-		a[2] = bc2 ^ (bc4 &^ bc3)
-		a[13] = bc3 ^ (bc0 &^ bc4)
-		a[24] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[20] ^ d0
-		bc1 = t<<36 | t>>(64-36)
-		t = a[6] ^ d1
-		bc2 = t<<10 | t>>(64-10)
-		t = a[17] ^ d2
-		bc3 = t<<15 | t>>(64-15)
-		t = a[3] ^ d3
-		bc4 = t<<56 | t>>(64-56)
-		t = a[14] ^ d4
-		bc0 = t<<27 | t>>(64-27)
-		a[20] = bc0 ^ (bc2 &^ bc1)
-		a[6] = bc1 ^ (bc3 &^ bc2)
-		a[17] = bc2 ^ (bc4 &^ bc3)
-		a[3] = bc3 ^ (bc0 &^ bc4)
-		a[14] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[10] ^ d0
-		bc3 = t<<41 | t>>(64-41)
-		t = a[21] ^ d1
-		bc4 = t<<2 | t>>(64-2)
-		t = a[7] ^ d2
-		bc0 = t<<62 | t>>(64-62)
-		t = a[18] ^ d3
-		bc1 = t<<55 | t>>(64-55)
-		t = a[4] ^ d4
-		bc2 = t<<39 | t>>(64-39)
-		a[10] = bc0 ^ (bc2 &^ bc1)
-		a[21] = bc1 ^ (bc3 &^ bc2)
-		a[7] = bc2 ^ (bc4 &^ bc3)
-		a[18] = bc3 ^ (bc0 &^ bc4)
-		a[4] = bc4 ^ (bc1 &^ bc0)
-
-		// Round 4
-		bc0 = a[0] ^ a[5] ^ a[10] ^ a[15] ^ a[20]
-		bc1 = a[1] ^ a[6] ^ a[11] ^ a[16] ^ a[21]
-		bc2 = a[2] ^ a[7] ^ a[12] ^ a[17] ^ a[22]
-		bc3 = a[3] ^ a[8] ^ a[13] ^ a[18] ^ a[23]
-		bc4 = a[4] ^ a[9] ^ a[14] ^ a[19] ^ a[24]
-		d0 = bc4 ^ (bc1<<1 | bc1>>63)
-		d1 = bc0 ^ (bc2<<1 | bc2>>63)
-		d2 = bc1 ^ (bc3<<1 | bc3>>63)
-		d3 = bc2 ^ (bc4<<1 | bc4>>63)
-		d4 = bc3 ^ (bc0<<1 | bc0>>63)
-
-		bc0 = a[0] ^ d0
-		t = a[1] ^ d1
-		bc1 = t<<44 | t>>(64-44)
-		t = a[2] ^ d2
-		bc2 = t<<43 | t>>(64-43)
-		t = a[3] ^ d3
-		bc3 = t<<21 | t>>(64-21)
-		t = a[4] ^ d4
-		bc4 = t<<14 | t>>(64-14)
-		a[0] = bc0 ^ (bc2 &^ bc1) ^ rc[i+3]
-		a[1] = bc1 ^ (bc3 &^ bc2)
-		a[2] = bc2 ^ (bc4 &^ bc3)
-		a[3] = bc3 ^ (bc0 &^ bc4)
-		a[4] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[5] ^ d0
-		bc2 = t<<3 | t>>(64-3)
-		t = a[6] ^ d1
-		bc3 = t<<45 | t>>(64-45)
-		t = a[7] ^ d2
-		bc4 = t<<61 | t>>(64-61)
-		t = a[8] ^ d3
-		bc0 = t<<28 | t>>(64-28)
-		t = a[9] ^ d4
-		bc1 = t<<20 | t>>(64-20)
-		a[5] = bc0 ^ (bc2 &^ bc1)
-		a[6] = bc1 ^ (bc3 &^ bc2)
-		a[7] = bc2 ^ (bc4 &^ bc3)
-		a[8] = bc3 ^ (bc0 &^ bc4)
-		a[9] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[10] ^ d0
-		bc4 = t<<18 | t>>(64-18)
-		t = a[11] ^ d1
-		bc0 = t<<1 | t>>(64-1)
-		t = a[12] ^ d2
-		bc1 = t<<6 | t>>(64-6)
-		t = a[13] ^ d3
-		bc2 = t<<25 | t>>(64-25)
-		t = a[14] ^ d4
-		bc3 = t<<8 | t>>(64-8)
-		a[10] = bc0 ^ (bc2 &^ bc1)
-		a[11] = bc1 ^ (bc3 &^ bc2)
-		a[12] = bc2 ^ (bc4 &^ bc3)
-		a[13] = bc3 ^ (bc0 &^ bc4)
-		a[14] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[15] ^ d0
-		bc1 = t<<36 | t>>(64-36)
-		t = a[16] ^ d1
-		bc2 = t<<10 | t>>(64-10)
-		t = a[17] ^ d2
-		bc3 = t<<15 | t>>(64-15)
-		t = a[18] ^ d3
-		bc4 = t<<56 | t>>(64-56)
-		t = a[19] ^ d4
-		bc0 = t<<27 | t>>(64-27)
-		a[15] = bc0 ^ (bc2 &^ bc1)
-		a[16] = bc1 ^ (bc3 &^ bc2)
-		a[17] = bc2 ^ (bc4 &^ bc3)
-		a[18] = bc3 ^ (bc0 &^ bc4)
-		a[19] = bc4 ^ (bc1 &^ bc0)
-
-		t = a[20] ^ d0
-		bc3 = t<<41 | t>>(64-41)
-		t = a[21] ^ d1
-		bc4 = t<<2 | t>>(64-2)
-		t = a[22] ^ d2
-		bc0 = t<<62 | t>>(64-62)
-		t = a[23] ^ d3
-		bc1 = t<<55 | t>>(64-55)
-		t = a[24] ^ d4
-		bc2 = t<<39 | t>>(64-39)
-		a[20] = bc0 ^ (bc2 &^ bc1)
-		a[21] = bc1 ^ (bc3 &^ bc2)
-		a[22] = bc2 ^ (bc4 &^ bc3)
-		a[23] = bc3 ^ (bc0 &^ bc4)
-		a[24] = bc4 ^ (bc1 &^ bc0)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/sha3/keccakf_amd64.go b/vendor/golang.org/x/crypto/sha3/keccakf_amd64.go
deleted file mode 100644
index 7886795..0000000
--- a/vendor/golang.org/x/crypto/sha3/keccakf_amd64.go
+++ /dev/null
@@ -1,13 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!appengine,!gccgo
-
-package sha3
-
-// This function is implemented in keccakf_amd64.s.
-
-//go:noescape
-
-func keccakF1600(a *[25]uint64)
diff --git a/vendor/golang.org/x/crypto/sha3/keccakf_amd64.s b/vendor/golang.org/x/crypto/sha3/keccakf_amd64.s
deleted file mode 100644
index f88533a..0000000
--- a/vendor/golang.org/x/crypto/sha3/keccakf_amd64.s
+++ /dev/null
@@ -1,390 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64,!appengine,!gccgo
-
-// This code was translated into a form compatible with 6a from the public
-// domain sources at https://github.com/gvanas/KeccakCodePackage
-
-// Offsets in state
-#define _ba  (0*8)
-#define _be  (1*8)
-#define _bi  (2*8)
-#define _bo  (3*8)
-#define _bu  (4*8)
-#define _ga  (5*8)
-#define _ge  (6*8)
-#define _gi  (7*8)
-#define _go  (8*8)
-#define _gu  (9*8)
-#define _ka (10*8)
-#define _ke (11*8)
-#define _ki (12*8)
-#define _ko (13*8)
-#define _ku (14*8)
-#define _ma (15*8)
-#define _me (16*8)
-#define _mi (17*8)
-#define _mo (18*8)
-#define _mu (19*8)
-#define _sa (20*8)
-#define _se (21*8)
-#define _si (22*8)
-#define _so (23*8)
-#define _su (24*8)
-
-// Temporary registers
-#define rT1  AX
-
-// Round vars
-#define rpState DI
-#define rpStack SP
-
-#define rDa BX
-#define rDe CX
-#define rDi DX
-#define rDo R8
-#define rDu R9
-
-#define rBa R10
-#define rBe R11
-#define rBi R12
-#define rBo R13
-#define rBu R14
-
-#define rCa SI
-#define rCe BP
-#define rCi rBi
-#define rCo rBo
-#define rCu R15
-
-#define MOVQ_RBI_RCE MOVQ rBi, rCe
-#define XORQ_RT1_RCA XORQ rT1, rCa
-#define XORQ_RT1_RCE XORQ rT1, rCe
-#define XORQ_RBA_RCU XORQ rBa, rCu
-#define XORQ_RBE_RCU XORQ rBe, rCu
-#define XORQ_RDU_RCU XORQ rDu, rCu
-#define XORQ_RDA_RCA XORQ rDa, rCa
-#define XORQ_RDE_RCE XORQ rDe, rCe
-
-#define mKeccakRound(iState, oState, rc, B_RBI_RCE, G_RT1_RCA, G_RT1_RCE, G_RBA_RCU, K_RT1_RCA, K_RT1_RCE, K_RBA_RCU, M_RT1_RCA, M_RT1_RCE, M_RBE_RCU, S_RDU_RCU, S_RDA_RCA, S_RDE_RCE) \
-	/* Prepare round */    \
-	MOVQ rCe, rDa;         \
-	ROLQ $1, rDa;          \
-	                       \
-	MOVQ _bi(iState), rCi; \
-	XORQ _gi(iState), rDi; \
-	XORQ rCu, rDa;         \
-	XORQ _ki(iState), rCi; \
-	XORQ _mi(iState), rDi; \
-	XORQ rDi, rCi;         \
-	                       \
-	MOVQ rCi, rDe;         \
-	ROLQ $1, rDe;          \
-	                       \
-	MOVQ _bo(iState), rCo; \
-	XORQ _go(iState), rDo; \
-	XORQ rCa, rDe;         \
-	XORQ _ko(iState), rCo; \
-	XORQ _mo(iState), rDo; \
-	XORQ rDo, rCo;         \
-	                       \
-	MOVQ rCo, rDi;         \
-	ROLQ $1, rDi;          \
-	                       \
-	MOVQ rCu, rDo;         \
-	XORQ rCe, rDi;         \
-	ROLQ $1, rDo;          \
-	                       \
-	MOVQ rCa, rDu;         \
-	XORQ rCi, rDo;         \
-	ROLQ $1, rDu;          \
-	                       \
-	/* Result b */         \
-	MOVQ _ba(iState), rBa; \
-	MOVQ _ge(iState), rBe; \
-	XORQ rCo, rDu;         \
-	MOVQ _ki(iState), rBi; \
-	MOVQ _mo(iState), rBo; \
-	MOVQ _su(iState), rBu; \
-	XORQ rDe, rBe;         \
-	ROLQ $44, rBe;         \
-	XORQ rDi, rBi;         \
-	XORQ rDa, rBa;         \
-	ROLQ $43, rBi;         \
-	                       \
-	MOVQ rBe, rCa;         \
-	MOVQ rc, rT1;          \
-	ORQ  rBi, rCa;         \
-	XORQ rBa, rT1;         \
-	XORQ rT1, rCa;         \
-	MOVQ rCa, _ba(oState); \
-	                       \
-	XORQ rDu, rBu;         \
-	ROLQ $14, rBu;         \
-	MOVQ rBa, rCu;         \
-	ANDQ rBe, rCu;         \
-	XORQ rBu, rCu;         \
-	MOVQ rCu, _bu(oState); \
-	                       \
-	XORQ rDo, rBo;         \
-	ROLQ $21, rBo;         \
-	MOVQ rBo, rT1;         \
-	ANDQ rBu, rT1;         \
-	XORQ rBi, rT1;         \
-	MOVQ rT1, _bi(oState); \
-	                       \
-	NOTQ rBi;              \
-	ORQ  rBa, rBu;         \
-	ORQ  rBo, rBi;         \
-	XORQ rBo, rBu;         \
-	XORQ rBe, rBi;         \
-	MOVQ rBu, _bo(oState); \
-	MOVQ rBi, _be(oState); \
-	B_RBI_RCE;             \
-	                       \
-	/* Result g */         \
-	MOVQ _gu(iState), rBe; \
-	XORQ rDu, rBe;         \
-	MOVQ _ka(iState), rBi; \
-	ROLQ $20, rBe;         \
-	XORQ rDa, rBi;         \
-	ROLQ $3, rBi;          \
-	MOVQ _bo(iState), rBa; \
-	MOVQ rBe, rT1;         \
-	ORQ  rBi, rT1;         \
-	XORQ rDo, rBa;         \
-	MOVQ _me(iState), rBo; \
-	MOVQ _si(iState), rBu; \
-	ROLQ $28, rBa;         \
-	XORQ rBa, rT1;         \
-	MOVQ rT1, _ga(oState); \
-	G_RT1_RCA;             \
-	                       \
-	XORQ rDe, rBo;         \
-	ROLQ $45, rBo;         \
-	MOVQ rBi, rT1;         \
-	ANDQ rBo, rT1;         \
-	XORQ rBe, rT1;         \
-	MOVQ rT1, _ge(oState); \
-	G_RT1_RCE;             \
-	                       \
-	XORQ rDi, rBu;         \
-	ROLQ $61, rBu;         \
-	MOVQ rBu, rT1;         \
-	ORQ  rBa, rT1;         \
-	XORQ rBo, rT1;         \
-	MOVQ rT1, _go(oState); \
-	                       \
-	ANDQ rBe, rBa;         \
-	XORQ rBu, rBa;         \
-	MOVQ rBa, _gu(oState); \
-	NOTQ rBu;              \
-	G_RBA_RCU;             \
-	                       \
-	ORQ  rBu, rBo;         \
-	XORQ rBi, rBo;         \
-	MOVQ rBo, _gi(oState); \
-	                       \
-	/* Result k */         \
-	MOVQ _be(iState), rBa; \
-	MOVQ _gi(iState), rBe; \
-	MOVQ _ko(iState), rBi; \
-	MOVQ _mu(iState), rBo; \
-	MOVQ _sa(iState), rBu; \
-	XORQ rDi, rBe;         \
-	ROLQ $6, rBe;          \
-	XORQ rDo, rBi;         \
-	ROLQ $25, rBi;         \
-	MOVQ rBe, rT1;         \
-	ORQ  rBi, rT1;         \
-	XORQ rDe, rBa;         \
-	ROLQ $1, rBa;          \
-	XORQ rBa, rT1;         \
-	MOVQ rT1, _ka(oState); \
-	K_RT1_RCA;             \
-	                       \
-	XORQ rDu, rBo;         \
-	ROLQ $8, rBo;          \
-	MOVQ rBi, rT1;         \
-	ANDQ rBo, rT1;         \
-	XORQ rBe, rT1;         \
-	MOVQ rT1, _ke(oState); \
-	K_RT1_RCE;             \
-	                       \
-	XORQ rDa, rBu;         \
-	ROLQ $18, rBu;         \
-	NOTQ rBo;              \
-	MOVQ rBo, rT1;         \
-	ANDQ rBu, rT1;         \
-	XORQ rBi, rT1;         \
-	MOVQ rT1, _ki(oState); \
-	                       \
-	MOVQ rBu, rT1;         \
-	ORQ  rBa, rT1;         \
-	XORQ rBo, rT1;         \
-	MOVQ rT1, _ko(oState); \
-	                       \
-	ANDQ rBe, rBa;         \
-	XORQ rBu, rBa;         \
-	MOVQ rBa, _ku(oState); \
-	K_RBA_RCU;             \
-	                       \
-	/* Result m */         \
-	MOVQ _ga(iState), rBe; \
-	XORQ rDa, rBe;         \
-	MOVQ _ke(iState), rBi; \
-	ROLQ $36, rBe;         \
-	XORQ rDe, rBi;         \
-	MOVQ _bu(iState), rBa; \
-	ROLQ $10, rBi;         \
-	MOVQ rBe, rT1;         \
-	MOVQ _mi(iState), rBo; \
-	ANDQ rBi, rT1;         \
-	XORQ rDu, rBa;         \
-	MOVQ _so(iState), rBu; \
-	ROLQ $27, rBa;         \
-	XORQ rBa, rT1;         \
-	MOVQ rT1, _ma(oState); \
-	M_RT1_RCA;             \
-	                       \
-	XORQ rDi, rBo;         \
-	ROLQ $15, rBo;         \
-	MOVQ rBi, rT1;         \
-	ORQ  rBo, rT1;         \
-	XORQ rBe, rT1;         \
-	MOVQ rT1, _me(oState); \
-	M_RT1_RCE;             \
-	                       \
-	XORQ rDo, rBu;         \
-	ROLQ $56, rBu;         \
-	NOTQ rBo;              \
-	MOVQ rBo, rT1;         \
-	ORQ  rBu, rT1;         \
-	XORQ rBi, rT1;         \
-	MOVQ rT1, _mi(oState); \
-	                       \
-	ORQ  rBa, rBe;         \
-	XORQ rBu, rBe;         \
-	MOVQ rBe, _mu(oState); \
-	                       \
-	ANDQ rBa, rBu;         \
-	XORQ rBo, rBu;         \
-	MOVQ rBu, _mo(oState); \
-	M_RBE_RCU;             \
-	                       \
-	/* Result s */         \
-	MOVQ _bi(iState), rBa; \
-	MOVQ _go(iState), rBe; \
-	MOVQ _ku(iState), rBi; \
-	XORQ rDi, rBa;         \
-	MOVQ _ma(iState), rBo; \
-	ROLQ $62, rBa;         \
-	XORQ rDo, rBe;         \
-	MOVQ _se(iState), rBu; \
-	ROLQ $55, rBe;         \
-	                       \
-	XORQ rDu, rBi;         \
-	MOVQ rBa, rDu;         \
-	XORQ rDe, rBu;         \
-	ROLQ $2, rBu;          \
-	ANDQ rBe, rDu;         \
-	XORQ rBu, rDu;         \
-	MOVQ rDu, _su(oState); \
-	                       \
-	ROLQ $39, rBi;         \
-	S_RDU_RCU;             \
-	NOTQ rBe;              \
-	XORQ rDa, rBo;         \
-	MOVQ rBe, rDa;         \
-	ANDQ rBi, rDa;         \
-	XORQ rBa, rDa;         \
-	MOVQ rDa, _sa(oState); \
-	S_RDA_RCA;             \
-	                       \
-	ROLQ $41, rBo;         \
-	MOVQ rBi, rDe;         \
-	ORQ  rBo, rDe;         \
-	XORQ rBe, rDe;         \
-	MOVQ rDe, _se(oState); \
-	S_RDE_RCE;             \
-	                       \
-	MOVQ rBo, rDi;         \
-	MOVQ rBu, rDo;         \
-	ANDQ rBu, rDi;         \
-	ORQ  rBa, rDo;         \
-	XORQ rBi, rDi;         \
-	XORQ rBo, rDo;         \
-	MOVQ rDi, _si(oState); \
-	MOVQ rDo, _so(oState)  \
-
-// func keccakF1600(state *[25]uint64)
-TEXT ·keccakF1600(SB), 0, $200-8
-	MOVQ state+0(FP), rpState
-
-	// Convert the user state into an internal state
-	NOTQ _be(rpState)
-	NOTQ _bi(rpState)
-	NOTQ _go(rpState)
-	NOTQ _ki(rpState)
-	NOTQ _mi(rpState)
-	NOTQ _sa(rpState)
-
-	// Execute the KeccakF permutation
-	MOVQ _ba(rpState), rCa
-	MOVQ _be(rpState), rCe
-	MOVQ _bu(rpState), rCu
-
-	XORQ _ga(rpState), rCa
-	XORQ _ge(rpState), rCe
-	XORQ _gu(rpState), rCu
-
-	XORQ _ka(rpState), rCa
-	XORQ _ke(rpState), rCe
-	XORQ _ku(rpState), rCu
-
-	XORQ _ma(rpState), rCa
-	XORQ _me(rpState), rCe
-	XORQ _mu(rpState), rCu
-
-	XORQ _sa(rpState), rCa
-	XORQ _se(rpState), rCe
-	MOVQ _si(rpState), rDi
-	MOVQ _so(rpState), rDo
-	XORQ _su(rpState), rCu
-
-	mKeccakRound(rpState, rpStack, $0x0000000000000001, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x0000000000008082, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x800000000000808a, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000080008000, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x000000000000808b, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x0000000080000001, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x8000000080008081, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000000008009, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x000000000000008a, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x0000000000000088, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x0000000080008009, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x000000008000000a, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x000000008000808b, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x800000000000008b, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x8000000000008089, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000000008003, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x8000000000008002, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000000000080, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x000000000000800a, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x800000008000000a, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x8000000080008081, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000000008080, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpState, rpStack, $0x0000000080000001, MOVQ_RBI_RCE, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBA_RCU, XORQ_RT1_RCA, XORQ_RT1_RCE, XORQ_RBE_RCU, XORQ_RDU_RCU, XORQ_RDA_RCA, XORQ_RDE_RCE)
-	mKeccakRound(rpStack, rpState, $0x8000000080008008, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP, NOP)
-
-	// Revert the internal state to the user state
-	NOTQ _be(rpState)
-	NOTQ _bi(rpState)
-	NOTQ _go(rpState)
-	NOTQ _ki(rpState)
-	NOTQ _mi(rpState)
-	NOTQ _sa(rpState)
-
-	RET
diff --git a/vendor/golang.org/x/crypto/sha3/register.go b/vendor/golang.org/x/crypto/sha3/register.go
deleted file mode 100644
index 3cf6a22..0000000
--- a/vendor/golang.org/x/crypto/sha3/register.go
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build go1.4
-
-package sha3
-
-import (
-	"crypto"
-)
-
-func init() {
-	crypto.RegisterHash(crypto.SHA3_224, New224)
-	crypto.RegisterHash(crypto.SHA3_256, New256)
-	crypto.RegisterHash(crypto.SHA3_384, New384)
-	crypto.RegisterHash(crypto.SHA3_512, New512)
-}
diff --git a/vendor/golang.org/x/crypto/sha3/sha3.go b/vendor/golang.org/x/crypto/sha3/sha3.go
deleted file mode 100644
index b12a35c..0000000
--- a/vendor/golang.org/x/crypto/sha3/sha3.go
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sha3
-
-// spongeDirection indicates the direction bytes are flowing through the sponge.
-type spongeDirection int
-
-const (
-	// spongeAbsorbing indicates that the sponge is absorbing input.
-	spongeAbsorbing spongeDirection = iota
-	// spongeSqueezing indicates that the sponge is being squeezed.
-	spongeSqueezing
-)
-
-const (
-	// maxRate is the maximum size of the internal buffer. SHAKE-256
-	// currently needs the largest buffer.
-	maxRate = 168
-)
-
-type state struct {
-	// Generic sponge components.
-	a    [25]uint64 // main state of the hash
-	buf  []byte     // points into storage
-	rate int        // the number of bytes of state to use
-
-	// dsbyte contains the "domain separation" bits and the first bit of
-	// the padding. Sections 6.1 and 6.2 of [1] separate the outputs of the
-	// SHA-3 and SHAKE functions by appending bitstrings to the message.
-	// Using a little-endian bit-ordering convention, these are "01" for SHA-3
-	// and "1111" for SHAKE, or 00000010b and 00001111b, respectively. Then the
-	// padding rule from section 5.1 is applied to pad the message to a multiple
-	// of the rate, which involves adding a "1" bit, zero or more "0" bits, and
-	// a final "1" bit. We merge the first "1" bit from the padding into dsbyte,
-	// giving 00000110b (0x06) and 00011111b (0x1f).
-	// [1] http://csrc.nist.gov/publications/drafts/fips-202/fips_202_draft.pdf
-	//     "Draft FIPS 202: SHA-3 Standard: Permutation-Based Hash and
-	//      Extendable-Output Functions (May 2014)"
-	dsbyte  byte
-	storage [maxRate]byte
-
-	// Specific to SHA-3 and SHAKE.
-	outputLen int             // the default output size in bytes
-	state     spongeDirection // whether the sponge is absorbing or squeezing
-}
-
-// BlockSize returns the rate of sponge underlying this hash function.
-func (d *state) BlockSize() int { return d.rate }
-
-// Size returns the output size of the hash function in bytes.
-func (d *state) Size() int { return d.outputLen }
-
-// Reset clears the internal state by zeroing the sponge state and
-// the byte buffer, and setting Sponge.state to absorbing.
-func (d *state) Reset() {
-	// Zero the permutation's state.
-	for i := range d.a {
-		d.a[i] = 0
-	}
-	d.state = spongeAbsorbing
-	d.buf = d.storage[:0]
-}
-
-func (d *state) clone() *state {
-	ret := *d
-	if ret.state == spongeAbsorbing {
-		ret.buf = ret.storage[:len(ret.buf)]
-	} else {
-		ret.buf = ret.storage[d.rate-cap(d.buf) : d.rate]
-	}
-
-	return &ret
-}
-
-// permute applies the KeccakF-1600 permutation. It handles
-// any input-output buffering.
-func (d *state) permute() {
-	switch d.state {
-	case spongeAbsorbing:
-		// If we're absorbing, we need to xor the input into the state
-		// before applying the permutation.
-		xorIn(d, d.buf)
-		d.buf = d.storage[:0]
-		keccakF1600(&d.a)
-	case spongeSqueezing:
-		// If we're squeezing, we need to apply the permutatin before
-		// copying more output.
-		keccakF1600(&d.a)
-		d.buf = d.storage[:d.rate]
-		copyOut(d, d.buf)
-	}
-}
-
-// pads appends the domain separation bits in dsbyte, applies
-// the multi-bitrate 10..1 padding rule, and permutes the state.
-func (d *state) padAndPermute(dsbyte byte) {
-	if d.buf == nil {
-		d.buf = d.storage[:0]
-	}
-	// Pad with this instance's domain-separator bits. We know that there's
-	// at least one byte of space in d.buf because, if it were full,
-	// permute would have been called to empty it. dsbyte also contains the
-	// first one bit for the padding. See the comment in the state struct.
-	d.buf = append(d.buf, dsbyte)
-	zerosStart := len(d.buf)
-	d.buf = d.storage[:d.rate]
-	for i := zerosStart; i < d.rate; i++ {
-		d.buf[i] = 0
-	}
-	// This adds the final one bit for the padding. Because of the way that
-	// bits are numbered from the LSB upwards, the final bit is the MSB of
-	// the last byte.
-	d.buf[d.rate-1] ^= 0x80
-	// Apply the permutation
-	d.permute()
-	d.state = spongeSqueezing
-	d.buf = d.storage[:d.rate]
-	copyOut(d, d.buf)
-}
-
-// Write absorbs more data into the hash's state. It produces an error
-// if more data is written to the ShakeHash after writing
-func (d *state) Write(p []byte) (written int, err error) {
-	if d.state != spongeAbsorbing {
-		panic("sha3: write to sponge after read")
-	}
-	if d.buf == nil {
-		d.buf = d.storage[:0]
-	}
-	written = len(p)
-
-	for len(p) > 0 {
-		if len(d.buf) == 0 && len(p) >= d.rate {
-			// The fast path; absorb a full "rate" bytes of input and apply the permutation.
-			xorIn(d, p[:d.rate])
-			p = p[d.rate:]
-			keccakF1600(&d.a)
-		} else {
-			// The slow path; buffer the input until we can fill the sponge, and then xor it in.
-			todo := d.rate - len(d.buf)
-			if todo > len(p) {
-				todo = len(p)
-			}
-			d.buf = append(d.buf, p[:todo]...)
-			p = p[todo:]
-
-			// If the sponge is full, apply the permutation.
-			if len(d.buf) == d.rate {
-				d.permute()
-			}
-		}
-	}
-
-	return
-}
-
-// Read squeezes an arbitrary number of bytes from the sponge.
-func (d *state) Read(out []byte) (n int, err error) {
-	// If we're still absorbing, pad and apply the permutation.
-	if d.state == spongeAbsorbing {
-		d.padAndPermute(d.dsbyte)
-	}
-
-	n = len(out)
-
-	// Now, do the squeezing.
-	for len(out) > 0 {
-		n := copy(out, d.buf)
-		d.buf = d.buf[n:]
-		out = out[n:]
-
-		// Apply the permutation if we've squeezed the sponge dry.
-		if len(d.buf) == 0 {
-			d.permute()
-		}
-	}
-
-	return
-}
-
-// Sum applies padding to the hash state and then squeezes out the desired
-// number of output bytes.
-func (d *state) Sum(in []byte) []byte {
-	// Make a copy of the original hash so that caller can keep writing
-	// and summing.
-	dup := d.clone()
-	hash := make([]byte, dup.outputLen)
-	dup.Read(hash)
-	return append(in, hash...)
-}
diff --git a/vendor/golang.org/x/crypto/sha3/sha3_s390x.go b/vendor/golang.org/x/crypto/sha3/sha3_s390x.go
deleted file mode 100644
index f1fb79c..0000000
--- a/vendor/golang.org/x/crypto/sha3/sha3_s390x.go
+++ /dev/null
@@ -1,289 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//+build !gccgo,!appengine
-
-package sha3
-
-// This file contains code for using the 'compute intermediate
-// message digest' (KIMD) and 'compute last message digest' (KLMD)
-// instructions to compute SHA-3 and SHAKE hashes on IBM Z.
-
-import (
-	"hash"
-)
-
-// codes represent 7-bit KIMD/KLMD function codes as defined in
-// the Principles of Operation.
-type code uint64
-
-const (
-	// function codes for KIMD/KLMD
-	sha3_224  code = 32
-	sha3_256       = 33
-	sha3_384       = 34
-	sha3_512       = 35
-	shake_128      = 36
-	shake_256      = 37
-	nopad          = 0x100
-)
-
-// hasMSA6 reports whether the machine supports the SHA-3 and SHAKE function
-// codes, as defined in message-security-assist extension 6.
-func hasMSA6() bool
-
-// hasAsm caches the result of hasMSA6 (which might be expensive to call).
-var hasAsm = hasMSA6()
-
-// kimd is a wrapper for the 'compute intermediate message digest' instruction.
-// src must be a multiple of the rate for the given function code.
-//go:noescape
-func kimd(function code, chain *[200]byte, src []byte)
-
-// klmd is a wrapper for the 'compute last message digest' instruction.
-// src padding is handled by the instruction.
-//go:noescape
-func klmd(function code, chain *[200]byte, dst, src []byte)
-
-type asmState struct {
-	a         [200]byte       // 1600 bit state
-	buf       []byte          // care must be taken to ensure cap(buf) is a multiple of rate
-	rate      int             // equivalent to block size
-	storage   [3072]byte      // underlying storage for buf
-	outputLen int             // output length if fixed, 0 if not
-	function  code            // KIMD/KLMD function code
-	state     spongeDirection // whether the sponge is absorbing or squeezing
-}
-
-func newAsmState(function code) *asmState {
-	var s asmState
-	s.function = function
-	switch function {
-	case sha3_224:
-		s.rate = 144
-		s.outputLen = 28
-	case sha3_256:
-		s.rate = 136
-		s.outputLen = 32
-	case sha3_384:
-		s.rate = 104
-		s.outputLen = 48
-	case sha3_512:
-		s.rate = 72
-		s.outputLen = 64
-	case shake_128:
-		s.rate = 168
-	case shake_256:
-		s.rate = 136
-	default:
-		panic("sha3: unrecognized function code")
-	}
-
-	// limit s.buf size to a multiple of s.rate
-	s.resetBuf()
-	return &s
-}
-
-func (s *asmState) clone() *asmState {
-	c := *s
-	c.buf = c.storage[:len(s.buf):cap(s.buf)]
-	return &c
-}
-
-// copyIntoBuf copies b into buf. It will panic if there is not enough space to
-// store all of b.
-func (s *asmState) copyIntoBuf(b []byte) {
-	bufLen := len(s.buf)
-	s.buf = s.buf[:len(s.buf)+len(b)]
-	copy(s.buf[bufLen:], b)
-}
-
-// resetBuf points buf at storage, sets the length to 0 and sets cap to be a
-// multiple of the rate.
-func (s *asmState) resetBuf() {
-	max := (cap(s.storage) / s.rate) * s.rate
-	s.buf = s.storage[:0:max]
-}
-
-// Write (via the embedded io.Writer interface) adds more data to the running hash.
-// It never returns an error.
-func (s *asmState) Write(b []byte) (int, error) {
-	if s.state != spongeAbsorbing {
-		panic("sha3: write to sponge after read")
-	}
-	length := len(b)
-	for len(b) > 0 {
-		if len(s.buf) == 0 && len(b) >= cap(s.buf) {
-			// Hash the data directly and push any remaining bytes
-			// into the buffer.
-			remainder := len(s.buf) % s.rate
-			kimd(s.function, &s.a, b[:len(b)-remainder])
-			if remainder != 0 {
-				s.copyIntoBuf(b[len(b)-remainder:])
-			}
-			return length, nil
-		}
-
-		if len(s.buf) == cap(s.buf) {
-			// flush the buffer
-			kimd(s.function, &s.a, s.buf)
-			s.buf = s.buf[:0]
-		}
-
-		// copy as much as we can into the buffer
-		n := len(b)
-		if len(b) > cap(s.buf)-len(s.buf) {
-			n = cap(s.buf) - len(s.buf)
-		}
-		s.copyIntoBuf(b[:n])
-		b = b[n:]
-	}
-	return length, nil
-}
-
-// Read squeezes an arbitrary number of bytes from the sponge.
-func (s *asmState) Read(out []byte) (n int, err error) {
-	n = len(out)
-
-	// need to pad if we were absorbing
-	if s.state == spongeAbsorbing {
-		s.state = spongeSqueezing
-
-		// write hash directly into out if possible
-		if len(out)%s.rate == 0 {
-			klmd(s.function, &s.a, out, s.buf) // len(out) may be 0
-			s.buf = s.buf[:0]
-			return
-		}
-
-		// write hash into buffer
-		max := cap(s.buf)
-		if max > len(out) {
-			max = (len(out)/s.rate)*s.rate + s.rate
-		}
-		klmd(s.function, &s.a, s.buf[:max], s.buf)
-		s.buf = s.buf[:max]
-	}
-
-	for len(out) > 0 {
-		// flush the buffer
-		if len(s.buf) != 0 {
-			c := copy(out, s.buf)
-			out = out[c:]
-			s.buf = s.buf[c:]
-			continue
-		}
-
-		// write hash directly into out if possible
-		if len(out)%s.rate == 0 {
-			klmd(s.function|nopad, &s.a, out, nil)
-			return
-		}
-
-		// write hash into buffer
-		s.resetBuf()
-		if cap(s.buf) > len(out) {
-			s.buf = s.buf[:(len(out)/s.rate)*s.rate+s.rate]
-		}
-		klmd(s.function|nopad, &s.a, s.buf, nil)
-	}
-	return
-}
-
-// Sum appends the current hash to b and returns the resulting slice.
-// It does not change the underlying hash state.
-func (s *asmState) Sum(b []byte) []byte {
-	if s.outputLen == 0 {
-		panic("sha3: cannot call Sum on SHAKE functions")
-	}
-
-	// Copy the state to preserve the original.
-	a := s.a
-
-	// Hash the buffer. Note that we don't clear it because we
-	// aren't updating the state.
-	klmd(s.function, &a, nil, s.buf)
-	return append(b, a[:s.outputLen]...)
-}
-
-// Reset resets the Hash to its initial state.
-func (s *asmState) Reset() {
-	for i := range s.a {
-		s.a[i] = 0
-	}
-	s.resetBuf()
-	s.state = spongeAbsorbing
-}
-
-// Size returns the number of bytes Sum will return.
-func (s *asmState) Size() int {
-	return s.outputLen
-}
-
-// BlockSize returns the hash's underlying block size.
-// The Write method must be able to accept any amount
-// of data, but it may operate more efficiently if all writes
-// are a multiple of the block size.
-func (s *asmState) BlockSize() int {
-	return s.rate
-}
-
-// Clone returns a copy of the ShakeHash in its current state.
-func (s *asmState) Clone() ShakeHash {
-	return s.clone()
-}
-
-// new224Asm returns an assembly implementation of SHA3-224 if available,
-// otherwise it returns nil.
-func new224Asm() hash.Hash {
-	if hasAsm {
-		return newAsmState(sha3_224)
-	}
-	return nil
-}
-
-// new256Asm returns an assembly implementation of SHA3-256 if available,
-// otherwise it returns nil.
-func new256Asm() hash.Hash {
-	if hasAsm {
-		return newAsmState(sha3_256)
-	}
-	return nil
-}
-
-// new384Asm returns an assembly implementation of SHA3-384 if available,
-// otherwise it returns nil.
-func new384Asm() hash.Hash {
-	if hasAsm {
-		return newAsmState(sha3_384)
-	}
-	return nil
-}
-
-// new512Asm returns an assembly implementation of SHA3-512 if available,
-// otherwise it returns nil.
-func new512Asm() hash.Hash {
-	if hasAsm {
-		return newAsmState(sha3_512)
-	}
-	return nil
-}
-
-// newShake128Asm returns an assembly implementation of SHAKE-128 if available,
-// otherwise it returns nil.
-func newShake128Asm() ShakeHash {
-	if hasAsm {
-		return newAsmState(shake_128)
-	}
-	return nil
-}
-
-// newShake256Asm returns an assembly implementation of SHAKE-256 if available,
-// otherwise it returns nil.
-func newShake256Asm() ShakeHash {
-	if hasAsm {
-		return newAsmState(shake_256)
-	}
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/sha3/sha3_s390x.s b/vendor/golang.org/x/crypto/sha3/sha3_s390x.s
deleted file mode 100644
index 20978fc..0000000
--- a/vendor/golang.org/x/crypto/sha3/sha3_s390x.s
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//+build !gccgo,!appengine
-
-#include "textflag.h"
-
-TEXT ·hasMSA6(SB), NOSPLIT, $16-1
-	MOVD $0, R0          // KIMD-Query function code
-	MOVD $tmp-16(SP), R1 // parameter block
-	XC   $16, (R1), (R1) // clear the parameter block
-	WORD $0xB93E0002     // KIMD --, --
-	WORD $0x91FC1004     // TM 4(R1), 0xFC (test bits [32-37])
-	BVS  yes
-
-no:
-	MOVB $0, ret+0(FP)
-	RET
-
-yes:
-	MOVB $1, ret+0(FP)
-	RET
-
-// func kimd(function code, params *[200]byte, src []byte)
-TEXT ·kimd(SB), NOFRAME|NOSPLIT, $0-40
-	MOVD function+0(FP), R0
-	MOVD params+8(FP), R1
-	LMG  src+16(FP), R2, R3 // R2=base, R3=len
-
-continue:
-	WORD $0xB93E0002 // KIMD --, R2
-	BVS  continue    // continue if interrupted
-	MOVD $0, R0      // reset R0 for pre-go1.8 compilers
-	RET
-
-// func klmd(function code, params *[200]byte, dst, src []byte)
-TEXT ·klmd(SB), NOFRAME|NOSPLIT, $0-64
-	// TODO: SHAKE support
-	MOVD function+0(FP), R0
-	MOVD params+8(FP), R1
-	LMG  dst+16(FP), R2, R3 // R2=base, R3=len
-	LMG  src+40(FP), R4, R5 // R4=base, R5=len
-
-continue:
-	WORD $0xB93F0024 // KLMD R2, R4
-	BVS  continue    // continue if interrupted
-	MOVD $0, R0      // reset R0 for pre-go1.8 compilers
-	RET
diff --git a/vendor/golang.org/x/crypto/sha3/sha3_test.go b/vendor/golang.org/x/crypto/sha3/sha3_test.go
deleted file mode 100644
index c1f6ca3..0000000
--- a/vendor/golang.org/x/crypto/sha3/sha3_test.go
+++ /dev/null
@@ -1,337 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sha3
-
-// Tests include all the ShortMsgKATs provided by the Keccak team at
-// https://github.com/gvanas/KeccakCodePackage
-//
-// They only include the zero-bit case of the bitwise testvectors
-// published by NIST in the draft of FIPS-202.
-
-import (
-	"bytes"
-	"compress/flate"
-	"encoding/hex"
-	"encoding/json"
-	"fmt"
-	"hash"
-	"os"
-	"strings"
-	"testing"
-)
-
-const (
-	testString  = "brekeccakkeccak koax koax"
-	katFilename = "testdata/keccakKats.json.deflate"
-)
-
-// Internal-use instances of SHAKE used to test against KATs.
-func newHashShake128() hash.Hash {
-	return &state{rate: 168, dsbyte: 0x1f, outputLen: 512}
-}
-func newHashShake256() hash.Hash {
-	return &state{rate: 136, dsbyte: 0x1f, outputLen: 512}
-}
-
-// testDigests contains functions returning hash.Hash instances
-// with output-length equal to the KAT length for SHA-3, Keccak
-// and SHAKE instances.
-var testDigests = map[string]func() hash.Hash{
-	"SHA3-224":   New224,
-	"SHA3-256":   New256,
-	"SHA3-384":   New384,
-	"SHA3-512":   New512,
-	"Keccak-256": NewLegacyKeccak256,
-	"SHAKE128":   newHashShake128,
-	"SHAKE256":   newHashShake256,
-}
-
-// testShakes contains functions that return ShakeHash instances for
-// testing the ShakeHash-specific interface.
-var testShakes = map[string]func() ShakeHash{
-	"SHAKE128": NewShake128,
-	"SHAKE256": NewShake256,
-}
-
-// decodeHex converts a hex-encoded string into a raw byte string.
-func decodeHex(s string) []byte {
-	b, err := hex.DecodeString(s)
-	if err != nil {
-		panic(err)
-	}
-	return b
-}
-
-// structs used to marshal JSON test-cases.
-type KeccakKats struct {
-	Kats map[string][]struct {
-		Digest  string `json:"digest"`
-		Length  int64  `json:"length"`
-		Message string `json:"message"`
-	}
-}
-
-func testUnalignedAndGeneric(t *testing.T, testf func(impl string)) {
-	xorInOrig, copyOutOrig := xorIn, copyOut
-	xorIn, copyOut = xorInGeneric, copyOutGeneric
-	testf("generic")
-	if xorImplementationUnaligned != "generic" {
-		xorIn, copyOut = xorInUnaligned, copyOutUnaligned
-		testf("unaligned")
-	}
-	xorIn, copyOut = xorInOrig, copyOutOrig
-}
-
-// TestKeccakKats tests the SHA-3 and Shake implementations against all the
-// ShortMsgKATs from https://github.com/gvanas/KeccakCodePackage
-// (The testvectors are stored in keccakKats.json.deflate due to their length.)
-func TestKeccakKats(t *testing.T) {
-	testUnalignedAndGeneric(t, func(impl string) {
-		// Read the KATs.
-		deflated, err := os.Open(katFilename)
-		if err != nil {
-			t.Errorf("error opening %s: %s", katFilename, err)
-		}
-		file := flate.NewReader(deflated)
-		dec := json.NewDecoder(file)
-		var katSet KeccakKats
-		err = dec.Decode(&katSet)
-		if err != nil {
-			t.Errorf("error decoding KATs: %s", err)
-		}
-
-		// Do the KATs.
-		for functionName, kats := range katSet.Kats {
-			d := testDigests[functionName]()
-			for _, kat := range kats {
-				d.Reset()
-				in, err := hex.DecodeString(kat.Message)
-				if err != nil {
-					t.Errorf("error decoding KAT: %s", err)
-				}
-				d.Write(in[:kat.Length/8])
-				got := strings.ToUpper(hex.EncodeToString(d.Sum(nil)))
-				if got != kat.Digest {
-					t.Errorf("function=%s, implementation=%s, length=%d\nmessage:\n  %s\ngot:\n  %s\nwanted:\n %s",
-						functionName, impl, kat.Length, kat.Message, got, kat.Digest)
-					t.Logf("wanted %+v", kat)
-					t.FailNow()
-				}
-				continue
-			}
-		}
-	})
-}
-
-// TestKeccak does a basic test of the non-standardized Keccak hash functions.
-func TestKeccak(t *testing.T) {
-	tests := []struct {
-		fn   func() hash.Hash
-		data []byte
-		want string
-	}{
-		{
-			NewLegacyKeccak256,
-			[]byte("abc"),
-			"4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45",
-		},
-	}
-
-	for _, u := range tests {
-		h := u.fn()
-		h.Write(u.data)
-		got := h.Sum(nil)
-		want := decodeHex(u.want)
-		if !bytes.Equal(got, want) {
-			t.Errorf("unexpected hash for size %d: got '%x' want '%s'", h.Size()*8, got, u.want)
-		}
-	}
-}
-
-// TestUnalignedWrite tests that writing data in an arbitrary pattern with
-// small input buffers.
-func TestUnalignedWrite(t *testing.T) {
-	testUnalignedAndGeneric(t, func(impl string) {
-		buf := sequentialBytes(0x10000)
-		for alg, df := range testDigests {
-			d := df()
-			d.Reset()
-			d.Write(buf)
-			want := d.Sum(nil)
-			d.Reset()
-			for i := 0; i < len(buf); {
-				// Cycle through offsets which make a 137 byte sequence.
-				// Because 137 is prime this sequence should exercise all corner cases.
-				offsets := [17]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1}
-				for _, j := range offsets {
-					if v := len(buf) - i; v < j {
-						j = v
-					}
-					d.Write(buf[i : i+j])
-					i += j
-				}
-			}
-			got := d.Sum(nil)
-			if !bytes.Equal(got, want) {
-				t.Errorf("Unaligned writes, implementation=%s, alg=%s\ngot %q, want %q", impl, alg, got, want)
-			}
-		}
-	})
-}
-
-// TestAppend checks that appending works when reallocation is necessary.
-func TestAppend(t *testing.T) {
-	testUnalignedAndGeneric(t, func(impl string) {
-		d := New224()
-
-		for capacity := 2; capacity <= 66; capacity += 64 {
-			// The first time around the loop, Sum will have to reallocate.
-			// The second time, it will not.
-			buf := make([]byte, 2, capacity)
-			d.Reset()
-			d.Write([]byte{0xcc})
-			buf = d.Sum(buf)
-			expected := "0000DF70ADC49B2E76EEE3A6931B93FA41841C3AF2CDF5B32A18B5478C39"
-			if got := strings.ToUpper(hex.EncodeToString(buf)); got != expected {
-				t.Errorf("got %s, want %s", got, expected)
-			}
-		}
-	})
-}
-
-// TestAppendNoRealloc tests that appending works when no reallocation is necessary.
-func TestAppendNoRealloc(t *testing.T) {
-	testUnalignedAndGeneric(t, func(impl string) {
-		buf := make([]byte, 1, 200)
-		d := New224()
-		d.Write([]byte{0xcc})
-		buf = d.Sum(buf)
-		expected := "00DF70ADC49B2E76EEE3A6931B93FA41841C3AF2CDF5B32A18B5478C39"
-		if got := strings.ToUpper(hex.EncodeToString(buf)); got != expected {
-			t.Errorf("%s: got %s, want %s", impl, got, expected)
-		}
-	})
-}
-
-// TestSqueezing checks that squeezing the full output a single time produces
-// the same output as repeatedly squeezing the instance.
-func TestSqueezing(t *testing.T) {
-	testUnalignedAndGeneric(t, func(impl string) {
-		for functionName, newShakeHash := range testShakes {
-			d0 := newShakeHash()
-			d0.Write([]byte(testString))
-			ref := make([]byte, 32)
-			d0.Read(ref)
-
-			d1 := newShakeHash()
-			d1.Write([]byte(testString))
-			var multiple []byte
-			for range ref {
-				one := make([]byte, 1)
-				d1.Read(one)
-				multiple = append(multiple, one...)
-			}
-			if !bytes.Equal(ref, multiple) {
-				t.Errorf("%s (%s): squeezing %d bytes one at a time failed", functionName, impl, len(ref))
-			}
-		}
-	})
-}
-
-// sequentialBytes produces a buffer of size consecutive bytes 0x00, 0x01, ..., used for testing.
-func sequentialBytes(size int) []byte {
-	result := make([]byte, size)
-	for i := range result {
-		result[i] = byte(i)
-	}
-	return result
-}
-
-// BenchmarkPermutationFunction measures the speed of the permutation function
-// with no input data.
-func BenchmarkPermutationFunction(b *testing.B) {
-	b.SetBytes(int64(200))
-	var lanes [25]uint64
-	for i := 0; i < b.N; i++ {
-		keccakF1600(&lanes)
-	}
-}
-
-// benchmarkHash tests the speed to hash num buffers of buflen each.
-func benchmarkHash(b *testing.B, h hash.Hash, size, num int) {
-	b.StopTimer()
-	h.Reset()
-	data := sequentialBytes(size)
-	b.SetBytes(int64(size * num))
-	b.StartTimer()
-
-	var state []byte
-	for i := 0; i < b.N; i++ {
-		for j := 0; j < num; j++ {
-			h.Write(data)
-		}
-		state = h.Sum(state[:0])
-	}
-	b.StopTimer()
-	h.Reset()
-}
-
-// benchmarkShake is specialized to the Shake instances, which don't
-// require a copy on reading output.
-func benchmarkShake(b *testing.B, h ShakeHash, size, num int) {
-	b.StopTimer()
-	h.Reset()
-	data := sequentialBytes(size)
-	d := make([]byte, 32)
-
-	b.SetBytes(int64(size * num))
-	b.StartTimer()
-
-	for i := 0; i < b.N; i++ {
-		h.Reset()
-		for j := 0; j < num; j++ {
-			h.Write(data)
-		}
-		h.Read(d)
-	}
-}
-
-func BenchmarkSha3_512_MTU(b *testing.B) { benchmarkHash(b, New512(), 1350, 1) }
-func BenchmarkSha3_384_MTU(b *testing.B) { benchmarkHash(b, New384(), 1350, 1) }
-func BenchmarkSha3_256_MTU(b *testing.B) { benchmarkHash(b, New256(), 1350, 1) }
-func BenchmarkSha3_224_MTU(b *testing.B) { benchmarkHash(b, New224(), 1350, 1) }
-
-func BenchmarkShake128_MTU(b *testing.B)  { benchmarkShake(b, NewShake128(), 1350, 1) }
-func BenchmarkShake256_MTU(b *testing.B)  { benchmarkShake(b, NewShake256(), 1350, 1) }
-func BenchmarkShake256_16x(b *testing.B)  { benchmarkShake(b, NewShake256(), 16, 1024) }
-func BenchmarkShake256_1MiB(b *testing.B) { benchmarkShake(b, NewShake256(), 1024, 1024) }
-
-func BenchmarkSha3_512_1MiB(b *testing.B) { benchmarkHash(b, New512(), 1024, 1024) }
-
-func Example_sum() {
-	buf := []byte("some data to hash")
-	// A hash needs to be 64 bytes long to have 256-bit collision resistance.
-	h := make([]byte, 64)
-	// Compute a 64-byte hash of buf and put it in h.
-	ShakeSum256(h, buf)
-	fmt.Printf("%x\n", h)
-	// Output: 0f65fe41fc353e52c55667bb9e2b27bfcc8476f2c413e9437d272ee3194a4e3146d05ec04a25d16b8f577c19b82d16b1424c3e022e783d2b4da98de3658d363d
-}
-
-func Example_mac() {
-	k := []byte("this is a secret key; you should generate a strong random key that's at least 32 bytes long")
-	buf := []byte("and this is some data to authenticate")
-	// A MAC with 32 bytes of output has 256-bit security strength -- if you use at least a 32-byte-long key.
-	h := make([]byte, 32)
-	d := NewShake256()
-	// Write the key into the hash.
-	d.Write(k)
-	// Now write the data.
-	d.Write(buf)
-	// Read 32 bytes of output from the hash into h.
-	d.Read(h)
-	fmt.Printf("%x\n", h)
-	// Output: 78de2974bd2711d5549ffd32b753ef0f5fa80a0db2556db60f0987eb8a9218ff
-}
diff --git a/vendor/golang.org/x/crypto/sha3/shake.go b/vendor/golang.org/x/crypto/sha3/shake.go
deleted file mode 100644
index 97c9b06..0000000
--- a/vendor/golang.org/x/crypto/sha3/shake.go
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sha3
-
-// This file defines the ShakeHash interface, and provides
-// functions for creating SHAKE instances, as well as utility
-// functions for hashing bytes to arbitrary-length output.
-
-import (
-	"io"
-)
-
-// ShakeHash defines the interface to hash functions that
-// support arbitrary-length output.
-type ShakeHash interface {
-	// Write absorbs more data into the hash's state. It panics if input is
-	// written to it after output has been read from it.
-	io.Writer
-
-	// Read reads more output from the hash; reading affects the hash's
-	// state. (ShakeHash.Read is thus very different from Hash.Sum)
-	// It never returns an error.
-	io.Reader
-
-	// Clone returns a copy of the ShakeHash in its current state.
-	Clone() ShakeHash
-
-	// Reset resets the ShakeHash to its initial state.
-	Reset()
-}
-
-func (d *state) Clone() ShakeHash {
-	return d.clone()
-}
-
-// NewShake128 creates a new SHAKE128 variable-output-length ShakeHash.
-// Its generic security strength is 128 bits against all attacks if at
-// least 32 bytes of its output are used.
-func NewShake128() ShakeHash {
-	if h := newShake128Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 168, dsbyte: 0x1f}
-}
-
-// NewShake256 creates a new SHAKE256 variable-output-length ShakeHash.
-// Its generic security strength is 256 bits against all attacks if
-// at least 64 bytes of its output are used.
-func NewShake256() ShakeHash {
-	if h := newShake256Asm(); h != nil {
-		return h
-	}
-	return &state{rate: 136, dsbyte: 0x1f}
-}
-
-// ShakeSum128 writes an arbitrary-length digest of data into hash.
-func ShakeSum128(hash, data []byte) {
-	h := NewShake128()
-	h.Write(data)
-	h.Read(hash)
-}
-
-// ShakeSum256 writes an arbitrary-length digest of data into hash.
-func ShakeSum256(hash, data []byte) {
-	h := NewShake256()
-	h.Write(data)
-	h.Read(hash)
-}
diff --git a/vendor/golang.org/x/crypto/sha3/shake_generic.go b/vendor/golang.org/x/crypto/sha3/shake_generic.go
deleted file mode 100644
index 73d0c90..0000000
--- a/vendor/golang.org/x/crypto/sha3/shake_generic.go
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-//+build gccgo appengine !s390x
-
-package sha3
-
-// newShake128Asm returns an assembly implementation of SHAKE-128 if available,
-// otherwise it returns nil.
-func newShake128Asm() ShakeHash {
-	return nil
-}
-
-// newShake256Asm returns an assembly implementation of SHAKE-256 if available,
-// otherwise it returns nil.
-func newShake256Asm() ShakeHash {
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/sha3/testdata/keccakKats.json.deflate b/vendor/golang.org/x/crypto/sha3/testdata/keccakKats.json.deflate
deleted file mode 100644
index 62e85ae..0000000
--- a/vendor/golang.org/x/crypto/sha3/testdata/keccakKats.json.deflate
+++ /dev/null
diff --git a/vendor/golang.org/x/crypto/sha3/xor.go b/vendor/golang.org/x/crypto/sha3/xor.go
deleted file mode 100644
index 46a0d63..0000000
--- a/vendor/golang.org/x/crypto/sha3/xor.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !amd64,!386,!ppc64le appengine
-
-package sha3
-
-var (
-	xorIn            = xorInGeneric
-	copyOut          = copyOutGeneric
-	xorInUnaligned   = xorInGeneric
-	copyOutUnaligned = copyOutGeneric
-)
-
-const xorImplementationUnaligned = "generic"
diff --git a/vendor/golang.org/x/crypto/sha3/xor_generic.go b/vendor/golang.org/x/crypto/sha3/xor_generic.go
deleted file mode 100644
index fd35f02..0000000
--- a/vendor/golang.org/x/crypto/sha3/xor_generic.go
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package sha3
-
-import "encoding/binary"
-
-// xorInGeneric xors the bytes in buf into the state; it
-// makes no non-portable assumptions about memory layout
-// or alignment.
-func xorInGeneric(d *state, buf []byte) {
-	n := len(buf) / 8
-
-	for i := 0; i < n; i++ {
-		a := binary.LittleEndian.Uint64(buf)
-		d.a[i] ^= a
-		buf = buf[8:]
-	}
-}
-
-// copyOutGeneric copies ulint64s to a byte buffer.
-func copyOutGeneric(d *state, b []byte) {
-	for i := 0; len(b) >= 8; i++ {
-		binary.LittleEndian.PutUint64(b, d.a[i])
-		b = b[8:]
-	}
-}
diff --git a/vendor/golang.org/x/crypto/sha3/xor_unaligned.go b/vendor/golang.org/x/crypto/sha3/xor_unaligned.go
deleted file mode 100644
index 929a486..0000000
--- a/vendor/golang.org/x/crypto/sha3/xor_unaligned.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build amd64 386 ppc64le
-// +build !appengine
-
-package sha3
-
-import "unsafe"
-
-func xorInUnaligned(d *state, buf []byte) {
-	bw := (*[maxRate / 8]uint64)(unsafe.Pointer(&buf[0]))
-	n := len(buf)
-	if n >= 72 {
-		d.a[0] ^= bw[0]
-		d.a[1] ^= bw[1]
-		d.a[2] ^= bw[2]
-		d.a[3] ^= bw[3]
-		d.a[4] ^= bw[4]
-		d.a[5] ^= bw[5]
-		d.a[6] ^= bw[6]
-		d.a[7] ^= bw[7]
-		d.a[8] ^= bw[8]
-	}
-	if n >= 104 {
-		d.a[9] ^= bw[9]
-		d.a[10] ^= bw[10]
-		d.a[11] ^= bw[11]
-		d.a[12] ^= bw[12]
-	}
-	if n >= 136 {
-		d.a[13] ^= bw[13]
-		d.a[14] ^= bw[14]
-		d.a[15] ^= bw[15]
-		d.a[16] ^= bw[16]
-	}
-	if n >= 144 {
-		d.a[17] ^= bw[17]
-	}
-	if n >= 168 {
-		d.a[18] ^= bw[18]
-		d.a[19] ^= bw[19]
-		d.a[20] ^= bw[20]
-	}
-}
-
-func copyOutUnaligned(d *state, buf []byte) {
-	ab := (*[maxRate]uint8)(unsafe.Pointer(&d.a[0]))
-	copy(buf, ab[:])
-}
-
-var (
-	xorIn   = xorInUnaligned
-	copyOut = copyOutUnaligned
-)
-
-const xorImplementationUnaligned = "unaligned"
diff --git a/vendor/golang.org/x/crypto/ssh/agent/client.go b/vendor/golang.org/x/crypto/ssh/agent/client.go
deleted file mode 100644
index b1808dd..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/client.go
+++ /dev/null
@@ -1,683 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package agent implements the ssh-agent protocol, and provides both
-// a client and a server. The client can talk to a standard ssh-agent
-// that uses UNIX sockets, and one could implement an alternative
-// ssh-agent process using the sample server.
-//
-// References:
-//  [PROTOCOL.agent]: https://tools.ietf.org/html/draft-miller-ssh-agent-00
-package agent // import "golang.org/x/crypto/ssh/agent"
-
-import (
-	"bytes"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"encoding/base64"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"math/big"
-	"sync"
-
-	"golang.org/x/crypto/ed25519"
-	"golang.org/x/crypto/ssh"
-)
-
-// Agent represents the capabilities of an ssh-agent.
-type Agent interface {
-	// List returns the identities known to the agent.
-	List() ([]*Key, error)
-
-	// Sign has the agent sign the data using a protocol 2 key as defined
-	// in [PROTOCOL.agent] section 2.6.2.
-	Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error)
-
-	// Add adds a private key to the agent.
-	Add(key AddedKey) error
-
-	// Remove removes all identities with the given public key.
-	Remove(key ssh.PublicKey) error
-
-	// RemoveAll removes all identities.
-	RemoveAll() error
-
-	// Lock locks the agent. Sign and Remove will fail, and List will empty an empty list.
-	Lock(passphrase []byte) error
-
-	// Unlock undoes the effect of Lock
-	Unlock(passphrase []byte) error
-
-	// Signers returns signers for all the known keys.
-	Signers() ([]ssh.Signer, error)
-}
-
-// ConstraintExtension describes an optional constraint defined by users.
-type ConstraintExtension struct {
-	// ExtensionName consist of a UTF-8 string suffixed by the
-	// implementation domain following the naming scheme defined
-	// in Section 4.2 of [RFC4251], e.g.  "foo@example.com".
-	ExtensionName string
-	// ExtensionDetails contains the actual content of the extended
-	// constraint.
-	ExtensionDetails []byte
-}
-
-// AddedKey describes an SSH key to be added to an Agent.
-type AddedKey struct {
-	// PrivateKey must be a *rsa.PrivateKey, *dsa.PrivateKey or
-	// *ecdsa.PrivateKey, which will be inserted into the agent.
-	PrivateKey interface{}
-	// Certificate, if not nil, is communicated to the agent and will be
-	// stored with the key.
-	Certificate *ssh.Certificate
-	// Comment is an optional, free-form string.
-	Comment string
-	// LifetimeSecs, if not zero, is the number of seconds that the
-	// agent will store the key for.
-	LifetimeSecs uint32
-	// ConfirmBeforeUse, if true, requests that the agent confirm with the
-	// user before each use of this key.
-	ConfirmBeforeUse bool
-	// ConstraintExtensions are the experimental or private-use constraints
-	// defined by users.
-	ConstraintExtensions []ConstraintExtension
-}
-
-// See [PROTOCOL.agent], section 3.
-const (
-	agentRequestV1Identities   = 1
-	agentRemoveAllV1Identities = 9
-
-	// 3.2 Requests from client to agent for protocol 2 key operations
-	agentAddIdentity         = 17
-	agentRemoveIdentity      = 18
-	agentRemoveAllIdentities = 19
-	agentAddIDConstrained    = 25
-
-	// 3.3 Key-type independent requests from client to agent
-	agentAddSmartcardKey            = 20
-	agentRemoveSmartcardKey         = 21
-	agentLock                       = 22
-	agentUnlock                     = 23
-	agentAddSmartcardKeyConstrained = 26
-
-	// 3.7 Key constraint identifiers
-	agentConstrainLifetime  = 1
-	agentConstrainConfirm   = 2
-	agentConstrainExtension = 3
-)
-
-// maxAgentResponseBytes is the maximum agent reply size that is accepted. This
-// is a sanity check, not a limit in the spec.
-const maxAgentResponseBytes = 16 << 20
-
-// Agent messages:
-// These structures mirror the wire format of the corresponding ssh agent
-// messages found in [PROTOCOL.agent].
-
-// 3.4 Generic replies from agent to client
-const agentFailure = 5
-
-type failureAgentMsg struct{}
-
-const agentSuccess = 6
-
-type successAgentMsg struct{}
-
-// See [PROTOCOL.agent], section 2.5.2.
-const agentRequestIdentities = 11
-
-type requestIdentitiesAgentMsg struct{}
-
-// See [PROTOCOL.agent], section 2.5.2.
-const agentIdentitiesAnswer = 12
-
-type identitiesAnswerAgentMsg struct {
-	NumKeys uint32 `sshtype:"12"`
-	Keys    []byte `ssh:"rest"`
-}
-
-// See [PROTOCOL.agent], section 2.6.2.
-const agentSignRequest = 13
-
-type signRequestAgentMsg struct {
-	KeyBlob []byte `sshtype:"13"`
-	Data    []byte
-	Flags   uint32
-}
-
-// See [PROTOCOL.agent], section 2.6.2.
-
-// 3.6 Replies from agent to client for protocol 2 key operations
-const agentSignResponse = 14
-
-type signResponseAgentMsg struct {
-	SigBlob []byte `sshtype:"14"`
-}
-
-type publicKey struct {
-	Format string
-	Rest   []byte `ssh:"rest"`
-}
-
-// 3.7 Key constraint identifiers
-type constrainLifetimeAgentMsg struct {
-	LifetimeSecs uint32 `sshtype:"1"`
-}
-
-type constrainExtensionAgentMsg struct {
-	ExtensionName    string `sshtype:"3"`
-	ExtensionDetails []byte
-
-	// Rest is a field used for parsing, not part of message
-	Rest []byte `ssh:"rest"`
-}
-
-// Key represents a protocol 2 public key as defined in
-// [PROTOCOL.agent], section 2.5.2.
-type Key struct {
-	Format  string
-	Blob    []byte
-	Comment string
-}
-
-func clientErr(err error) error {
-	return fmt.Errorf("agent: client error: %v", err)
-}
-
-// String returns the storage form of an agent key with the format, base64
-// encoded serialized key, and the comment if it is not empty.
-func (k *Key) String() string {
-	s := string(k.Format) + " " + base64.StdEncoding.EncodeToString(k.Blob)
-
-	if k.Comment != "" {
-		s += " " + k.Comment
-	}
-
-	return s
-}
-
-// Type returns the public key type.
-func (k *Key) Type() string {
-	return k.Format
-}
-
-// Marshal returns key blob to satisfy the ssh.PublicKey interface.
-func (k *Key) Marshal() []byte {
-	return k.Blob
-}
-
-// Verify satisfies the ssh.PublicKey interface.
-func (k *Key) Verify(data []byte, sig *ssh.Signature) error {
-	pubKey, err := ssh.ParsePublicKey(k.Blob)
-	if err != nil {
-		return fmt.Errorf("agent: bad public key: %v", err)
-	}
-	return pubKey.Verify(data, sig)
-}
-
-type wireKey struct {
-	Format string
-	Rest   []byte `ssh:"rest"`
-}
-
-func parseKey(in []byte) (out *Key, rest []byte, err error) {
-	var record struct {
-		Blob    []byte
-		Comment string
-		Rest    []byte `ssh:"rest"`
-	}
-
-	if err := ssh.Unmarshal(in, &record); err != nil {
-		return nil, nil, err
-	}
-
-	var wk wireKey
-	if err := ssh.Unmarshal(record.Blob, &wk); err != nil {
-		return nil, nil, err
-	}
-
-	return &Key{
-		Format:  wk.Format,
-		Blob:    record.Blob,
-		Comment: record.Comment,
-	}, record.Rest, nil
-}
-
-// client is a client for an ssh-agent process.
-type client struct {
-	// conn is typically a *net.UnixConn
-	conn io.ReadWriter
-	// mu is used to prevent concurrent access to the agent
-	mu sync.Mutex
-}
-
-// NewClient returns an Agent that talks to an ssh-agent process over
-// the given connection.
-func NewClient(rw io.ReadWriter) Agent {
-	return &client{conn: rw}
-}
-
-// call sends an RPC to the agent. On success, the reply is
-// unmarshaled into reply and replyType is set to the first byte of
-// the reply, which contains the type of the message.
-func (c *client) call(req []byte) (reply interface{}, err error) {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-
-	msg := make([]byte, 4+len(req))
-	binary.BigEndian.PutUint32(msg, uint32(len(req)))
-	copy(msg[4:], req)
-	if _, err = c.conn.Write(msg); err != nil {
-		return nil, clientErr(err)
-	}
-
-	var respSizeBuf [4]byte
-	if _, err = io.ReadFull(c.conn, respSizeBuf[:]); err != nil {
-		return nil, clientErr(err)
-	}
-	respSize := binary.BigEndian.Uint32(respSizeBuf[:])
-	if respSize > maxAgentResponseBytes {
-		return nil, clientErr(err)
-	}
-
-	buf := make([]byte, respSize)
-	if _, err = io.ReadFull(c.conn, buf); err != nil {
-		return nil, clientErr(err)
-	}
-	reply, err = unmarshal(buf)
-	if err != nil {
-		return nil, clientErr(err)
-	}
-	return reply, err
-}
-
-func (c *client) simpleCall(req []byte) error {
-	resp, err := c.call(req)
-	if err != nil {
-		return err
-	}
-	if _, ok := resp.(*successAgentMsg); ok {
-		return nil
-	}
-	return errors.New("agent: failure")
-}
-
-func (c *client) RemoveAll() error {
-	return c.simpleCall([]byte{agentRemoveAllIdentities})
-}
-
-func (c *client) Remove(key ssh.PublicKey) error {
-	req := ssh.Marshal(&agentRemoveIdentityMsg{
-		KeyBlob: key.Marshal(),
-	})
-	return c.simpleCall(req)
-}
-
-func (c *client) Lock(passphrase []byte) error {
-	req := ssh.Marshal(&agentLockMsg{
-		Passphrase: passphrase,
-	})
-	return c.simpleCall(req)
-}
-
-func (c *client) Unlock(passphrase []byte) error {
-	req := ssh.Marshal(&agentUnlockMsg{
-		Passphrase: passphrase,
-	})
-	return c.simpleCall(req)
-}
-
-// List returns the identities known to the agent.
-func (c *client) List() ([]*Key, error) {
-	// see [PROTOCOL.agent] section 2.5.2.
-	req := []byte{agentRequestIdentities}
-
-	msg, err := c.call(req)
-	if err != nil {
-		return nil, err
-	}
-
-	switch msg := msg.(type) {
-	case *identitiesAnswerAgentMsg:
-		if msg.NumKeys > maxAgentResponseBytes/8 {
-			return nil, errors.New("agent: too many keys in agent reply")
-		}
-		keys := make([]*Key, msg.NumKeys)
-		data := msg.Keys
-		for i := uint32(0); i < msg.NumKeys; i++ {
-			var key *Key
-			var err error
-			if key, data, err = parseKey(data); err != nil {
-				return nil, err
-			}
-			keys[i] = key
-		}
-		return keys, nil
-	case *failureAgentMsg:
-		return nil, errors.New("agent: failed to list keys")
-	}
-	panic("unreachable")
-}
-
-// Sign has the agent sign the data using a protocol 2 key as defined
-// in [PROTOCOL.agent] section 2.6.2.
-func (c *client) Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error) {
-	req := ssh.Marshal(signRequestAgentMsg{
-		KeyBlob: key.Marshal(),
-		Data:    data,
-	})
-
-	msg, err := c.call(req)
-	if err != nil {
-		return nil, err
-	}
-
-	switch msg := msg.(type) {
-	case *signResponseAgentMsg:
-		var sig ssh.Signature
-		if err := ssh.Unmarshal(msg.SigBlob, &sig); err != nil {
-			return nil, err
-		}
-
-		return &sig, nil
-	case *failureAgentMsg:
-		return nil, errors.New("agent: failed to sign challenge")
-	}
-	panic("unreachable")
-}
-
-// unmarshal parses an agent message in packet, returning the parsed
-// form and the message type of packet.
-func unmarshal(packet []byte) (interface{}, error) {
-	if len(packet) < 1 {
-		return nil, errors.New("agent: empty packet")
-	}
-	var msg interface{}
-	switch packet[0] {
-	case agentFailure:
-		return new(failureAgentMsg), nil
-	case agentSuccess:
-		return new(successAgentMsg), nil
-	case agentIdentitiesAnswer:
-		msg = new(identitiesAnswerAgentMsg)
-	case agentSignResponse:
-		msg = new(signResponseAgentMsg)
-	case agentV1IdentitiesAnswer:
-		msg = new(agentV1IdentityMsg)
-	default:
-		return nil, fmt.Errorf("agent: unknown type tag %d", packet[0])
-	}
-	if err := ssh.Unmarshal(packet, msg); err != nil {
-		return nil, err
-	}
-	return msg, nil
-}
-
-type rsaKeyMsg struct {
-	Type        string `sshtype:"17|25"`
-	N           *big.Int
-	E           *big.Int
-	D           *big.Int
-	Iqmp        *big.Int // IQMP = Inverse Q Mod P
-	P           *big.Int
-	Q           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type dsaKeyMsg struct {
-	Type        string `sshtype:"17|25"`
-	P           *big.Int
-	Q           *big.Int
-	G           *big.Int
-	Y           *big.Int
-	X           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type ecdsaKeyMsg struct {
-	Type        string `sshtype:"17|25"`
-	Curve       string
-	KeyBytes    []byte
-	D           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type ed25519KeyMsg struct {
-	Type        string `sshtype:"17|25"`
-	Pub         []byte
-	Priv        []byte
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-// Insert adds a private key to the agent.
-func (c *client) insertKey(s interface{}, comment string, constraints []byte) error {
-	var req []byte
-	switch k := s.(type) {
-	case *rsa.PrivateKey:
-		if len(k.Primes) != 2 {
-			return fmt.Errorf("agent: unsupported RSA key with %d primes", len(k.Primes))
-		}
-		k.Precompute()
-		req = ssh.Marshal(rsaKeyMsg{
-			Type:        ssh.KeyAlgoRSA,
-			N:           k.N,
-			E:           big.NewInt(int64(k.E)),
-			D:           k.D,
-			Iqmp:        k.Precomputed.Qinv,
-			P:           k.Primes[0],
-			Q:           k.Primes[1],
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *dsa.PrivateKey:
-		req = ssh.Marshal(dsaKeyMsg{
-			Type:        ssh.KeyAlgoDSA,
-			P:           k.P,
-			Q:           k.Q,
-			G:           k.G,
-			Y:           k.Y,
-			X:           k.X,
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *ecdsa.PrivateKey:
-		nistID := fmt.Sprintf("nistp%d", k.Params().BitSize)
-		req = ssh.Marshal(ecdsaKeyMsg{
-			Type:        "ecdsa-sha2-" + nistID,
-			Curve:       nistID,
-			KeyBytes:    elliptic.Marshal(k.Curve, k.X, k.Y),
-			D:           k.D,
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *ed25519.PrivateKey:
-		req = ssh.Marshal(ed25519KeyMsg{
-			Type:        ssh.KeyAlgoED25519,
-			Pub:         []byte(*k)[32:],
-			Priv:        []byte(*k),
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	default:
-		return fmt.Errorf("agent: unsupported key type %T", s)
-	}
-
-	// if constraints are present then the message type needs to be changed.
-	if len(constraints) != 0 {
-		req[0] = agentAddIDConstrained
-	}
-
-	resp, err := c.call(req)
-	if err != nil {
-		return err
-	}
-	if _, ok := resp.(*successAgentMsg); ok {
-		return nil
-	}
-	return errors.New("agent: failure")
-}
-
-type rsaCertMsg struct {
-	Type        string `sshtype:"17|25"`
-	CertBytes   []byte
-	D           *big.Int
-	Iqmp        *big.Int // IQMP = Inverse Q Mod P
-	P           *big.Int
-	Q           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type dsaCertMsg struct {
-	Type        string `sshtype:"17|25"`
-	CertBytes   []byte
-	X           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type ecdsaCertMsg struct {
-	Type        string `sshtype:"17|25"`
-	CertBytes   []byte
-	D           *big.Int
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-type ed25519CertMsg struct {
-	Type        string `sshtype:"17|25"`
-	CertBytes   []byte
-	Pub         []byte
-	Priv        []byte
-	Comments    string
-	Constraints []byte `ssh:"rest"`
-}
-
-// Add adds a private key to the agent. If a certificate is given,
-// that certificate is added instead as public key.
-func (c *client) Add(key AddedKey) error {
-	var constraints []byte
-
-	if secs := key.LifetimeSecs; secs != 0 {
-		constraints = append(constraints, ssh.Marshal(constrainLifetimeAgentMsg{secs})...)
-	}
-
-	if key.ConfirmBeforeUse {
-		constraints = append(constraints, agentConstrainConfirm)
-	}
-
-	cert := key.Certificate
-	if cert == nil {
-		return c.insertKey(key.PrivateKey, key.Comment, constraints)
-	}
-	return c.insertCert(key.PrivateKey, cert, key.Comment, constraints)
-}
-
-func (c *client) insertCert(s interface{}, cert *ssh.Certificate, comment string, constraints []byte) error {
-	var req []byte
-	switch k := s.(type) {
-	case *rsa.PrivateKey:
-		if len(k.Primes) != 2 {
-			return fmt.Errorf("agent: unsupported RSA key with %d primes", len(k.Primes))
-		}
-		k.Precompute()
-		req = ssh.Marshal(rsaCertMsg{
-			Type:        cert.Type(),
-			CertBytes:   cert.Marshal(),
-			D:           k.D,
-			Iqmp:        k.Precomputed.Qinv,
-			P:           k.Primes[0],
-			Q:           k.Primes[1],
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *dsa.PrivateKey:
-		req = ssh.Marshal(dsaCertMsg{
-			Type:        cert.Type(),
-			CertBytes:   cert.Marshal(),
-			X:           k.X,
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *ecdsa.PrivateKey:
-		req = ssh.Marshal(ecdsaCertMsg{
-			Type:        cert.Type(),
-			CertBytes:   cert.Marshal(),
-			D:           k.D,
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	case *ed25519.PrivateKey:
-		req = ssh.Marshal(ed25519CertMsg{
-			Type:        cert.Type(),
-			CertBytes:   cert.Marshal(),
-			Pub:         []byte(*k)[32:],
-			Priv:        []byte(*k),
-			Comments:    comment,
-			Constraints: constraints,
-		})
-	default:
-		return fmt.Errorf("agent: unsupported key type %T", s)
-	}
-
-	// if constraints are present then the message type needs to be changed.
-	if len(constraints) != 0 {
-		req[0] = agentAddIDConstrained
-	}
-
-	signer, err := ssh.NewSignerFromKey(s)
-	if err != nil {
-		return err
-	}
-	if bytes.Compare(cert.Key.Marshal(), signer.PublicKey().Marshal()) != 0 {
-		return errors.New("agent: signer and cert have different public key")
-	}
-
-	resp, err := c.call(req)
-	if err != nil {
-		return err
-	}
-	if _, ok := resp.(*successAgentMsg); ok {
-		return nil
-	}
-	return errors.New("agent: failure")
-}
-
-// Signers provides a callback for client authentication.
-func (c *client) Signers() ([]ssh.Signer, error) {
-	keys, err := c.List()
-	if err != nil {
-		return nil, err
-	}
-
-	var result []ssh.Signer
-	for _, k := range keys {
-		result = append(result, &agentKeyringSigner{c, k})
-	}
-	return result, nil
-}
-
-type agentKeyringSigner struct {
-	agent *client
-	pub   ssh.PublicKey
-}
-
-func (s *agentKeyringSigner) PublicKey() ssh.PublicKey {
-	return s.pub
-}
-
-func (s *agentKeyringSigner) Sign(rand io.Reader, data []byte) (*ssh.Signature, error) {
-	// The agent has its own entropy source, so the rand argument is ignored.
-	return s.agent.Sign(s.pub, data)
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/client_test.go b/vendor/golang.org/x/crypto/ssh/agent/client_test.go
deleted file mode 100644
index 266fd6d..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/client_test.go
+++ /dev/null
@@ -1,379 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import (
-	"bytes"
-	"crypto/rand"
-	"errors"
-	"net"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"strconv"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// startOpenSSHAgent executes ssh-agent, and returns an Agent interface to it.
-func startOpenSSHAgent(t *testing.T) (client Agent, socket string, cleanup func()) {
-	if testing.Short() {
-		// ssh-agent is not always available, and the key
-		// types supported vary by platform.
-		t.Skip("skipping test due to -short")
-	}
-
-	bin, err := exec.LookPath("ssh-agent")
-	if err != nil {
-		t.Skip("could not find ssh-agent")
-	}
-
-	cmd := exec.Command(bin, "-s")
-	out, err := cmd.Output()
-	if err != nil {
-		t.Fatalf("cmd.Output: %v", err)
-	}
-
-	/* Output looks like:
-
-		   SSH_AUTH_SOCK=/tmp/ssh-P65gpcqArqvH/agent.15541; export SSH_AUTH_SOCK;
-	           SSH_AGENT_PID=15542; export SSH_AGENT_PID;
-	           echo Agent pid 15542;
-	*/
-	fields := bytes.Split(out, []byte(";"))
-	line := bytes.SplitN(fields[0], []byte("="), 2)
-	line[0] = bytes.TrimLeft(line[0], "\n")
-	if string(line[0]) != "SSH_AUTH_SOCK" {
-		t.Fatalf("could not find key SSH_AUTH_SOCK in %q", fields[0])
-	}
-	socket = string(line[1])
-
-	line = bytes.SplitN(fields[2], []byte("="), 2)
-	line[0] = bytes.TrimLeft(line[0], "\n")
-	if string(line[0]) != "SSH_AGENT_PID" {
-		t.Fatalf("could not find key SSH_AGENT_PID in %q", fields[2])
-	}
-	pidStr := line[1]
-	pid, err := strconv.Atoi(string(pidStr))
-	if err != nil {
-		t.Fatalf("Atoi(%q): %v", pidStr, err)
-	}
-
-	conn, err := net.Dial("unix", string(socket))
-	if err != nil {
-		t.Fatalf("net.Dial: %v", err)
-	}
-
-	ac := NewClient(conn)
-	return ac, socket, func() {
-		proc, _ := os.FindProcess(pid)
-		if proc != nil {
-			proc.Kill()
-		}
-		conn.Close()
-		os.RemoveAll(filepath.Dir(socket))
-	}
-}
-
-// startKeyringAgent uses Keyring to simulate a ssh-agent Server and returns a client.
-func startKeyringAgent(t *testing.T) (client Agent, cleanup func()) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	go ServeAgent(NewKeyring(), c2)
-
-	return NewClient(c1), func() {
-		c1.Close()
-		c2.Close()
-	}
-}
-
-func testOpenSSHAgent(t *testing.T, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
-	agent, _, cleanup := startOpenSSHAgent(t)
-	defer cleanup()
-
-	testAgentInterface(t, agent, key, cert, lifetimeSecs)
-}
-
-func testKeyringAgent(t *testing.T, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
-	agent, cleanup := startKeyringAgent(t)
-	defer cleanup()
-
-	testAgentInterface(t, agent, key, cert, lifetimeSecs)
-}
-
-func testAgentInterface(t *testing.T, agent Agent, key interface{}, cert *ssh.Certificate, lifetimeSecs uint32) {
-	signer, err := ssh.NewSignerFromKey(key)
-	if err != nil {
-		t.Fatalf("NewSignerFromKey(%T): %v", key, err)
-	}
-	// The agent should start up empty.
-	if keys, err := agent.List(); err != nil {
-		t.Fatalf("RequestIdentities: %v", err)
-	} else if len(keys) > 0 {
-		t.Fatalf("got %d keys, want 0: %v", len(keys), keys)
-	}
-
-	// Attempt to insert the key, with certificate if specified.
-	var pubKey ssh.PublicKey
-	if cert != nil {
-		err = agent.Add(AddedKey{
-			PrivateKey:   key,
-			Certificate:  cert,
-			Comment:      "comment",
-			LifetimeSecs: lifetimeSecs,
-		})
-		pubKey = cert
-	} else {
-		err = agent.Add(AddedKey{PrivateKey: key, Comment: "comment", LifetimeSecs: lifetimeSecs})
-		pubKey = signer.PublicKey()
-	}
-	if err != nil {
-		t.Fatalf("insert(%T): %v", key, err)
-	}
-
-	// Did the key get inserted successfully?
-	if keys, err := agent.List(); err != nil {
-		t.Fatalf("List: %v", err)
-	} else if len(keys) != 1 {
-		t.Fatalf("got %v, want 1 key", keys)
-	} else if keys[0].Comment != "comment" {
-		t.Fatalf("key comment: got %v, want %v", keys[0].Comment, "comment")
-	} else if !bytes.Equal(keys[0].Blob, pubKey.Marshal()) {
-		t.Fatalf("key mismatch")
-	}
-
-	// Can the agent make a valid signature?
-	data := []byte("hello")
-	sig, err := agent.Sign(pubKey, data)
-	if err != nil {
-		t.Fatalf("Sign(%s): %v", pubKey.Type(), err)
-	}
-
-	if err := pubKey.Verify(data, sig); err != nil {
-		t.Fatalf("Verify(%s): %v", pubKey.Type(), err)
-	}
-
-	// If the key has a lifetime, is it removed when it should be?
-	if lifetimeSecs > 0 {
-		time.Sleep(time.Second*time.Duration(lifetimeSecs) + 100*time.Millisecond)
-		keys, err := agent.List()
-		if err != nil {
-			t.Fatalf("List: %v", err)
-		}
-		if len(keys) > 0 {
-			t.Fatalf("key not expired")
-		}
-	}
-
-}
-
-func TestAgent(t *testing.T) {
-	for _, keyType := range []string{"rsa", "dsa", "ecdsa", "ed25519"} {
-		testOpenSSHAgent(t, testPrivateKeys[keyType], nil, 0)
-		testKeyringAgent(t, testPrivateKeys[keyType], nil, 0)
-	}
-}
-
-func TestCert(t *testing.T) {
-	cert := &ssh.Certificate{
-		Key:         testPublicKeys["rsa"],
-		ValidBefore: ssh.CertTimeInfinity,
-		CertType:    ssh.UserCert,
-	}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-
-	testOpenSSHAgent(t, testPrivateKeys["rsa"], cert, 0)
-	testKeyringAgent(t, testPrivateKeys["rsa"], cert, 0)
-}
-
-// netPipe is analogous to net.Pipe, but it uses a real net.Conn, and
-// therefore is buffered (net.Pipe deadlocks if both sides start with
-// a write.)
-func netPipe() (net.Conn, net.Conn, error) {
-	listener, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		listener, err = net.Listen("tcp", "[::1]:0")
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-	defer listener.Close()
-	c1, err := net.Dial("tcp", listener.Addr().String())
-	if err != nil {
-		return nil, nil, err
-	}
-
-	c2, err := listener.Accept()
-	if err != nil {
-		c1.Close()
-		return nil, nil, err
-	}
-
-	return c1, c2, nil
-}
-
-func TestAuth(t *testing.T) {
-	agent, _, cleanup := startOpenSSHAgent(t)
-	defer cleanup()
-
-	a, b, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-
-	defer a.Close()
-	defer b.Close()
-
-	if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["rsa"], Comment: "comment"}); err != nil {
-		t.Errorf("Add: %v", err)
-	}
-
-	serverConf := ssh.ServerConfig{}
-	serverConf.AddHostKey(testSigners["rsa"])
-	serverConf.PublicKeyCallback = func(c ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
-		if bytes.Equal(key.Marshal(), testPublicKeys["rsa"].Marshal()) {
-			return nil, nil
-		}
-
-		return nil, errors.New("pubkey rejected")
-	}
-
-	go func() {
-		conn, _, _, err := ssh.NewServerConn(a, &serverConf)
-		if err != nil {
-			t.Fatalf("Server: %v", err)
-		}
-		conn.Close()
-	}()
-
-	conf := ssh.ClientConfig{
-		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
-	}
-	conf.Auth = append(conf.Auth, ssh.PublicKeysCallback(agent.Signers))
-	conn, _, _, err := ssh.NewClientConn(b, "", &conf)
-	if err != nil {
-		t.Fatalf("NewClientConn: %v", err)
-	}
-	conn.Close()
-}
-
-func TestLockOpenSSHAgent(t *testing.T) {
-	agent, _, cleanup := startOpenSSHAgent(t)
-	defer cleanup()
-	testLockAgent(agent, t)
-}
-
-func TestLockKeyringAgent(t *testing.T) {
-	agent, cleanup := startKeyringAgent(t)
-	defer cleanup()
-	testLockAgent(agent, t)
-}
-
-func testLockAgent(agent Agent, t *testing.T) {
-	if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["rsa"], Comment: "comment 1"}); err != nil {
-		t.Errorf("Add: %v", err)
-	}
-	if err := agent.Add(AddedKey{PrivateKey: testPrivateKeys["dsa"], Comment: "comment dsa"}); err != nil {
-		t.Errorf("Add: %v", err)
-	}
-	if keys, err := agent.List(); err != nil {
-		t.Errorf("List: %v", err)
-	} else if len(keys) != 2 {
-		t.Errorf("Want 2 keys, got %v", keys)
-	}
-
-	passphrase := []byte("secret")
-	if err := agent.Lock(passphrase); err != nil {
-		t.Errorf("Lock: %v", err)
-	}
-
-	if keys, err := agent.List(); err != nil {
-		t.Errorf("List: %v", err)
-	} else if len(keys) != 0 {
-		t.Errorf("Want 0 keys, got %v", keys)
-	}
-
-	signer, _ := ssh.NewSignerFromKey(testPrivateKeys["rsa"])
-	if _, err := agent.Sign(signer.PublicKey(), []byte("hello")); err == nil {
-		t.Fatalf("Sign did not fail")
-	}
-
-	if err := agent.Remove(signer.PublicKey()); err == nil {
-		t.Fatalf("Remove did not fail")
-	}
-
-	if err := agent.RemoveAll(); err == nil {
-		t.Fatalf("RemoveAll did not fail")
-	}
-
-	if err := agent.Unlock(nil); err == nil {
-		t.Errorf("Unlock with wrong passphrase succeeded")
-	}
-	if err := agent.Unlock(passphrase); err != nil {
-		t.Errorf("Unlock: %v", err)
-	}
-
-	if err := agent.Remove(signer.PublicKey()); err != nil {
-		t.Fatalf("Remove: %v", err)
-	}
-
-	if keys, err := agent.List(); err != nil {
-		t.Errorf("List: %v", err)
-	} else if len(keys) != 1 {
-		t.Errorf("Want 1 keys, got %v", keys)
-	}
-}
-
-func testOpenSSHAgentLifetime(t *testing.T) {
-	agent, _, cleanup := startOpenSSHAgent(t)
-	defer cleanup()
-	testAgentLifetime(t, agent)
-}
-
-func testKeyringAgentLifetime(t *testing.T) {
-	agent, cleanup := startKeyringAgent(t)
-	defer cleanup()
-	testAgentLifetime(t, agent)
-}
-
-func testAgentLifetime(t *testing.T, agent Agent) {
-	for _, keyType := range []string{"rsa", "dsa", "ecdsa"} {
-		// Add private keys to the agent.
-		err := agent.Add(AddedKey{
-			PrivateKey:   testPrivateKeys[keyType],
-			Comment:      "comment",
-			LifetimeSecs: 1,
-		})
-		if err != nil {
-			t.Fatalf("add: %v", err)
-		}
-		// Add certs to the agent.
-		cert := &ssh.Certificate{
-			Key:         testPublicKeys[keyType],
-			ValidBefore: ssh.CertTimeInfinity,
-			CertType:    ssh.UserCert,
-		}
-		cert.SignCert(rand.Reader, testSigners[keyType])
-		err = agent.Add(AddedKey{
-			PrivateKey:   testPrivateKeys[keyType],
-			Certificate:  cert,
-			Comment:      "comment",
-			LifetimeSecs: 1,
-		})
-		if err != nil {
-			t.Fatalf("add: %v", err)
-		}
-	}
-	time.Sleep(1100 * time.Millisecond)
-	if keys, err := agent.List(); err != nil {
-		t.Errorf("List: %v", err)
-	} else if len(keys) != 0 {
-		t.Errorf("Want 0 keys, got %v", len(keys))
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/example_test.go b/vendor/golang.org/x/crypto/ssh/agent/example_test.go
deleted file mode 100644
index 8556225..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/example_test.go
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2016 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent_test
-
-import (
-	"log"
-	"net"
-	"os"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/agent"
-)
-
-func ExampleClientAgent() {
-	// ssh-agent has a UNIX socket under $SSH_AUTH_SOCK
-	socket := os.Getenv("SSH_AUTH_SOCK")
-	conn, err := net.Dial("unix", socket)
-	if err != nil {
-		log.Fatalf("net.Dial: %v", err)
-	}
-	agentClient := agent.NewClient(conn)
-	config := &ssh.ClientConfig{
-		User: "username",
-		Auth: []ssh.AuthMethod{
-			// Use a callback rather than PublicKeys
-			// so we only consult the agent once the remote server
-			// wants it.
-			ssh.PublicKeysCallback(agentClient.Signers),
-		},
-		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
-	}
-
-	sshc, err := ssh.Dial("tcp", "localhost:22", config)
-	if err != nil {
-		log.Fatalf("Dial: %v", err)
-	}
-	// .. use sshc
-	sshc.Close()
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/forward.go b/vendor/golang.org/x/crypto/ssh/agent/forward.go
deleted file mode 100644
index fd24ba9..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/forward.go
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import (
-	"errors"
-	"io"
-	"net"
-	"sync"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// RequestAgentForwarding sets up agent forwarding for the session.
-// ForwardToAgent or ForwardToRemote should be called to route
-// the authentication requests.
-func RequestAgentForwarding(session *ssh.Session) error {
-	ok, err := session.SendRequest("auth-agent-req@openssh.com", true, nil)
-	if err != nil {
-		return err
-	}
-	if !ok {
-		return errors.New("forwarding request denied")
-	}
-	return nil
-}
-
-// ForwardToAgent routes authentication requests to the given keyring.
-func ForwardToAgent(client *ssh.Client, keyring Agent) error {
-	channels := client.HandleChannelOpen(channelType)
-	if channels == nil {
-		return errors.New("agent: already have handler for " + channelType)
-	}
-
-	go func() {
-		for ch := range channels {
-			channel, reqs, err := ch.Accept()
-			if err != nil {
-				continue
-			}
-			go ssh.DiscardRequests(reqs)
-			go func() {
-				ServeAgent(keyring, channel)
-				channel.Close()
-			}()
-		}
-	}()
-	return nil
-}
-
-const channelType = "auth-agent@openssh.com"
-
-// ForwardToRemote routes authentication requests to the ssh-agent
-// process serving on the given unix socket.
-func ForwardToRemote(client *ssh.Client, addr string) error {
-	channels := client.HandleChannelOpen(channelType)
-	if channels == nil {
-		return errors.New("agent: already have handler for " + channelType)
-	}
-	conn, err := net.Dial("unix", addr)
-	if err != nil {
-		return err
-	}
-	conn.Close()
-
-	go func() {
-		for ch := range channels {
-			channel, reqs, err := ch.Accept()
-			if err != nil {
-				continue
-			}
-			go ssh.DiscardRequests(reqs)
-			go forwardUnixSocket(channel, addr)
-		}
-	}()
-	return nil
-}
-
-func forwardUnixSocket(channel ssh.Channel, addr string) {
-	conn, err := net.Dial("unix", addr)
-	if err != nil {
-		return
-	}
-
-	var wg sync.WaitGroup
-	wg.Add(2)
-	go func() {
-		io.Copy(conn, channel)
-		conn.(*net.UnixConn).CloseWrite()
-		wg.Done()
-	}()
-	go func() {
-		io.Copy(channel, conn)
-		channel.CloseWrite()
-		wg.Done()
-	}()
-
-	wg.Wait()
-	conn.Close()
-	channel.Close()
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/keyring.go b/vendor/golang.org/x/crypto/ssh/agent/keyring.go
deleted file mode 100644
index 1a51632..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/keyring.go
+++ /dev/null
@@ -1,215 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import (
-	"bytes"
-	"crypto/rand"
-	"crypto/subtle"
-	"errors"
-	"fmt"
-	"sync"
-	"time"
-
-	"golang.org/x/crypto/ssh"
-)
-
-type privKey struct {
-	signer  ssh.Signer
-	comment string
-	expire  *time.Time
-}
-
-type keyring struct {
-	mu   sync.Mutex
-	keys []privKey
-
-	locked     bool
-	passphrase []byte
-}
-
-var errLocked = errors.New("agent: locked")
-
-// NewKeyring returns an Agent that holds keys in memory.  It is safe
-// for concurrent use by multiple goroutines.
-func NewKeyring() Agent {
-	return &keyring{}
-}
-
-// RemoveAll removes all identities.
-func (r *keyring) RemoveAll() error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return errLocked
-	}
-
-	r.keys = nil
-	return nil
-}
-
-// removeLocked does the actual key removal. The caller must already be holding the
-// keyring mutex.
-func (r *keyring) removeLocked(want []byte) error {
-	found := false
-	for i := 0; i < len(r.keys); {
-		if bytes.Equal(r.keys[i].signer.PublicKey().Marshal(), want) {
-			found = true
-			r.keys[i] = r.keys[len(r.keys)-1]
-			r.keys = r.keys[:len(r.keys)-1]
-			continue
-		} else {
-			i++
-		}
-	}
-
-	if !found {
-		return errors.New("agent: key not found")
-	}
-	return nil
-}
-
-// Remove removes all identities with the given public key.
-func (r *keyring) Remove(key ssh.PublicKey) error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return errLocked
-	}
-
-	return r.removeLocked(key.Marshal())
-}
-
-// Lock locks the agent. Sign and Remove will fail, and List will return an empty list.
-func (r *keyring) Lock(passphrase []byte) error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return errLocked
-	}
-
-	r.locked = true
-	r.passphrase = passphrase
-	return nil
-}
-
-// Unlock undoes the effect of Lock
-func (r *keyring) Unlock(passphrase []byte) error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if !r.locked {
-		return errors.New("agent: not locked")
-	}
-	if 1 != subtle.ConstantTimeCompare(passphrase, r.passphrase) {
-		return fmt.Errorf("agent: incorrect passphrase")
-	}
-
-	r.locked = false
-	r.passphrase = nil
-	return nil
-}
-
-// expireKeysLocked removes expired keys from the keyring. If a key was added
-// with a lifetimesecs contraint and seconds >= lifetimesecs seconds have
-// ellapsed, it is removed. The caller *must* be holding the keyring mutex.
-func (r *keyring) expireKeysLocked() {
-	for _, k := range r.keys {
-		if k.expire != nil && time.Now().After(*k.expire) {
-			r.removeLocked(k.signer.PublicKey().Marshal())
-		}
-	}
-}
-
-// List returns the identities known to the agent.
-func (r *keyring) List() ([]*Key, error) {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		// section 2.7: locked agents return empty.
-		return nil, nil
-	}
-
-	r.expireKeysLocked()
-	var ids []*Key
-	for _, k := range r.keys {
-		pub := k.signer.PublicKey()
-		ids = append(ids, &Key{
-			Format:  pub.Type(),
-			Blob:    pub.Marshal(),
-			Comment: k.comment})
-	}
-	return ids, nil
-}
-
-// Insert adds a private key to the keyring. If a certificate
-// is given, that certificate is added as public key. Note that
-// any constraints given are ignored.
-func (r *keyring) Add(key AddedKey) error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return errLocked
-	}
-	signer, err := ssh.NewSignerFromKey(key.PrivateKey)
-
-	if err != nil {
-		return err
-	}
-
-	if cert := key.Certificate; cert != nil {
-		signer, err = ssh.NewCertSigner(cert, signer)
-		if err != nil {
-			return err
-		}
-	}
-
-	p := privKey{
-		signer:  signer,
-		comment: key.Comment,
-	}
-
-	if key.LifetimeSecs > 0 {
-		t := time.Now().Add(time.Duration(key.LifetimeSecs) * time.Second)
-		p.expire = &t
-	}
-
-	r.keys = append(r.keys, p)
-
-	return nil
-}
-
-// Sign returns a signature for the data.
-func (r *keyring) Sign(key ssh.PublicKey, data []byte) (*ssh.Signature, error) {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return nil, errLocked
-	}
-
-	r.expireKeysLocked()
-	wanted := key.Marshal()
-	for _, k := range r.keys {
-		if bytes.Equal(k.signer.PublicKey().Marshal(), wanted) {
-			return k.signer.Sign(rand.Reader, data)
-		}
-	}
-	return nil, errors.New("not found")
-}
-
-// Signers returns signers for all the known keys.
-func (r *keyring) Signers() ([]ssh.Signer, error) {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-	if r.locked {
-		return nil, errLocked
-	}
-
-	r.expireKeysLocked()
-	s := make([]ssh.Signer, 0, len(r.keys))
-	for _, k := range r.keys {
-		s = append(s, k.signer)
-	}
-	return s, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/keyring_test.go b/vendor/golang.org/x/crypto/ssh/agent/keyring_test.go
deleted file mode 100644
index e5d50e7..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/keyring_test.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import "testing"
-
-func addTestKey(t *testing.T, a Agent, keyName string) {
-	err := a.Add(AddedKey{
-		PrivateKey: testPrivateKeys[keyName],
-		Comment:    keyName,
-	})
-	if err != nil {
-		t.Fatalf("failed to add key %q: %v", keyName, err)
-	}
-}
-
-func removeTestKey(t *testing.T, a Agent, keyName string) {
-	err := a.Remove(testPublicKeys[keyName])
-	if err != nil {
-		t.Fatalf("failed to remove key %q: %v", keyName, err)
-	}
-}
-
-func validateListedKeys(t *testing.T, a Agent, expectedKeys []string) {
-	listedKeys, err := a.List()
-	if err != nil {
-		t.Fatalf("failed to list keys: %v", err)
-		return
-	}
-	actualKeys := make(map[string]bool)
-	for _, key := range listedKeys {
-		actualKeys[key.Comment] = true
-	}
-
-	matchedKeys := make(map[string]bool)
-	for _, expectedKey := range expectedKeys {
-		if !actualKeys[expectedKey] {
-			t.Fatalf("expected key %q, but was not found", expectedKey)
-		} else {
-			matchedKeys[expectedKey] = true
-		}
-	}
-
-	for actualKey := range actualKeys {
-		if !matchedKeys[actualKey] {
-			t.Fatalf("key %q was found, but was not expected", actualKey)
-		}
-	}
-}
-
-func TestKeyringAddingAndRemoving(t *testing.T) {
-	keyNames := []string{"dsa", "ecdsa", "rsa", "user"}
-
-	// add all test private keys
-	k := NewKeyring()
-	for _, keyName := range keyNames {
-		addTestKey(t, k, keyName)
-	}
-	validateListedKeys(t, k, keyNames)
-
-	// remove a key in the middle
-	keyToRemove := keyNames[1]
-	keyNames = append(keyNames[:1], keyNames[2:]...)
-
-	removeTestKey(t, k, keyToRemove)
-	validateListedKeys(t, k, keyNames)
-
-	// remove all keys
-	err := k.RemoveAll()
-	if err != nil {
-		t.Fatalf("failed to remove all keys: %v", err)
-	}
-	validateListedKeys(t, k, []string{})
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/server.go b/vendor/golang.org/x/crypto/ssh/agent/server.go
deleted file mode 100644
index 2e4692c..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/server.go
+++ /dev/null
@@ -1,523 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import (
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"math/big"
-
-	"golang.org/x/crypto/ed25519"
-	"golang.org/x/crypto/ssh"
-)
-
-// Server wraps an Agent and uses it to implement the agent side of
-// the SSH-agent, wire protocol.
-type server struct {
-	agent Agent
-}
-
-func (s *server) processRequestBytes(reqData []byte) []byte {
-	rep, err := s.processRequest(reqData)
-	if err != nil {
-		if err != errLocked {
-			// TODO(hanwen): provide better logging interface?
-			log.Printf("agent %d: %v", reqData[0], err)
-		}
-		return []byte{agentFailure}
-	}
-
-	if err == nil && rep == nil {
-		return []byte{agentSuccess}
-	}
-
-	return ssh.Marshal(rep)
-}
-
-func marshalKey(k *Key) []byte {
-	var record struct {
-		Blob    []byte
-		Comment string
-	}
-	record.Blob = k.Marshal()
-	record.Comment = k.Comment
-
-	return ssh.Marshal(&record)
-}
-
-// See [PROTOCOL.agent], section 2.5.1.
-const agentV1IdentitiesAnswer = 2
-
-type agentV1IdentityMsg struct {
-	Numkeys uint32 `sshtype:"2"`
-}
-
-type agentRemoveIdentityMsg struct {
-	KeyBlob []byte `sshtype:"18"`
-}
-
-type agentLockMsg struct {
-	Passphrase []byte `sshtype:"22"`
-}
-
-type agentUnlockMsg struct {
-	Passphrase []byte `sshtype:"23"`
-}
-
-func (s *server) processRequest(data []byte) (interface{}, error) {
-	switch data[0] {
-	case agentRequestV1Identities:
-		return &agentV1IdentityMsg{0}, nil
-
-	case agentRemoveAllV1Identities:
-		return nil, nil
-
-	case agentRemoveIdentity:
-		var req agentRemoveIdentityMsg
-		if err := ssh.Unmarshal(data, &req); err != nil {
-			return nil, err
-		}
-
-		var wk wireKey
-		if err := ssh.Unmarshal(req.KeyBlob, &wk); err != nil {
-			return nil, err
-		}
-
-		return nil, s.agent.Remove(&Key{Format: wk.Format, Blob: req.KeyBlob})
-
-	case agentRemoveAllIdentities:
-		return nil, s.agent.RemoveAll()
-
-	case agentLock:
-		var req agentLockMsg
-		if err := ssh.Unmarshal(data, &req); err != nil {
-			return nil, err
-		}
-
-		return nil, s.agent.Lock(req.Passphrase)
-
-	case agentUnlock:
-		var req agentUnlockMsg
-		if err := ssh.Unmarshal(data, &req); err != nil {
-			return nil, err
-		}
-		return nil, s.agent.Unlock(req.Passphrase)
-
-	case agentSignRequest:
-		var req signRequestAgentMsg
-		if err := ssh.Unmarshal(data, &req); err != nil {
-			return nil, err
-		}
-
-		var wk wireKey
-		if err := ssh.Unmarshal(req.KeyBlob, &wk); err != nil {
-			return nil, err
-		}
-
-		k := &Key{
-			Format: wk.Format,
-			Blob:   req.KeyBlob,
-		}
-
-		sig, err := s.agent.Sign(k, req.Data) //  TODO(hanwen): flags.
-		if err != nil {
-			return nil, err
-		}
-		return &signResponseAgentMsg{SigBlob: ssh.Marshal(sig)}, nil
-
-	case agentRequestIdentities:
-		keys, err := s.agent.List()
-		if err != nil {
-			return nil, err
-		}
-
-		rep := identitiesAnswerAgentMsg{
-			NumKeys: uint32(len(keys)),
-		}
-		for _, k := range keys {
-			rep.Keys = append(rep.Keys, marshalKey(k)...)
-		}
-		return rep, nil
-
-	case agentAddIDConstrained, agentAddIdentity:
-		return nil, s.insertIdentity(data)
-	}
-
-	return nil, fmt.Errorf("unknown opcode %d", data[0])
-}
-
-func parseConstraints(constraints []byte) (lifetimeSecs uint32, confirmBeforeUse bool, extensions []ConstraintExtension, err error) {
-	for len(constraints) != 0 {
-		switch constraints[0] {
-		case agentConstrainLifetime:
-			lifetimeSecs = binary.BigEndian.Uint32(constraints[1:5])
-			constraints = constraints[5:]
-		case agentConstrainConfirm:
-			confirmBeforeUse = true
-			constraints = constraints[1:]
-		case agentConstrainExtension:
-			var msg constrainExtensionAgentMsg
-			if err = ssh.Unmarshal(constraints, &msg); err != nil {
-				return 0, false, nil, err
-			}
-			extensions = append(extensions, ConstraintExtension{
-				ExtensionName:    msg.ExtensionName,
-				ExtensionDetails: msg.ExtensionDetails,
-			})
-			constraints = msg.Rest
-		default:
-			return 0, false, nil, fmt.Errorf("unknown constraint type: %d", constraints[0])
-		}
-	}
-	return
-}
-
-func setConstraints(key *AddedKey, constraintBytes []byte) error {
-	lifetimeSecs, confirmBeforeUse, constraintExtensions, err := parseConstraints(constraintBytes)
-	if err != nil {
-		return err
-	}
-
-	key.LifetimeSecs = lifetimeSecs
-	key.ConfirmBeforeUse = confirmBeforeUse
-	key.ConstraintExtensions = constraintExtensions
-	return nil
-}
-
-func parseRSAKey(req []byte) (*AddedKey, error) {
-	var k rsaKeyMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-	if k.E.BitLen() > 30 {
-		return nil, errors.New("agent: RSA public exponent too large")
-	}
-	priv := &rsa.PrivateKey{
-		PublicKey: rsa.PublicKey{
-			E: int(k.E.Int64()),
-			N: k.N,
-		},
-		D:      k.D,
-		Primes: []*big.Int{k.P, k.Q},
-	}
-	priv.Precompute()
-
-	addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseEd25519Key(req []byte) (*AddedKey, error) {
-	var k ed25519KeyMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-	priv := ed25519.PrivateKey(k.Priv)
-
-	addedKey := &AddedKey{PrivateKey: &priv, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseDSAKey(req []byte) (*AddedKey, error) {
-	var k dsaKeyMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-	priv := &dsa.PrivateKey{
-		PublicKey: dsa.PublicKey{
-			Parameters: dsa.Parameters{
-				P: k.P,
-				Q: k.Q,
-				G: k.G,
-			},
-			Y: k.Y,
-		},
-		X: k.X,
-	}
-
-	addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func unmarshalECDSA(curveName string, keyBytes []byte, privScalar *big.Int) (priv *ecdsa.PrivateKey, err error) {
-	priv = &ecdsa.PrivateKey{
-		D: privScalar,
-	}
-
-	switch curveName {
-	case "nistp256":
-		priv.Curve = elliptic.P256()
-	case "nistp384":
-		priv.Curve = elliptic.P384()
-	case "nistp521":
-		priv.Curve = elliptic.P521()
-	default:
-		return nil, fmt.Errorf("agent: unknown curve %q", curveName)
-	}
-
-	priv.X, priv.Y = elliptic.Unmarshal(priv.Curve, keyBytes)
-	if priv.X == nil || priv.Y == nil {
-		return nil, errors.New("agent: point not on curve")
-	}
-
-	return priv, nil
-}
-
-func parseEd25519Cert(req []byte) (*AddedKey, error) {
-	var k ed25519CertMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-	pubKey, err := ssh.ParsePublicKey(k.CertBytes)
-	if err != nil {
-		return nil, err
-	}
-	priv := ed25519.PrivateKey(k.Priv)
-	cert, ok := pubKey.(*ssh.Certificate)
-	if !ok {
-		return nil, errors.New("agent: bad ED25519 certificate")
-	}
-
-	addedKey := &AddedKey{PrivateKey: &priv, Certificate: cert, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseECDSAKey(req []byte) (*AddedKey, error) {
-	var k ecdsaKeyMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-
-	priv, err := unmarshalECDSA(k.Curve, k.KeyBytes, k.D)
-	if err != nil {
-		return nil, err
-	}
-
-	addedKey := &AddedKey{PrivateKey: priv, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseRSACert(req []byte) (*AddedKey, error) {
-	var k rsaCertMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-
-	pubKey, err := ssh.ParsePublicKey(k.CertBytes)
-	if err != nil {
-		return nil, err
-	}
-
-	cert, ok := pubKey.(*ssh.Certificate)
-	if !ok {
-		return nil, errors.New("agent: bad RSA certificate")
-	}
-
-	// An RSA publickey as marshaled by rsaPublicKey.Marshal() in keys.go
-	var rsaPub struct {
-		Name string
-		E    *big.Int
-		N    *big.Int
-	}
-	if err := ssh.Unmarshal(cert.Key.Marshal(), &rsaPub); err != nil {
-		return nil, fmt.Errorf("agent: Unmarshal failed to parse public key: %v", err)
-	}
-
-	if rsaPub.E.BitLen() > 30 {
-		return nil, errors.New("agent: RSA public exponent too large")
-	}
-
-	priv := rsa.PrivateKey{
-		PublicKey: rsa.PublicKey{
-			E: int(rsaPub.E.Int64()),
-			N: rsaPub.N,
-		},
-		D:      k.D,
-		Primes: []*big.Int{k.Q, k.P},
-	}
-	priv.Precompute()
-
-	addedKey := &AddedKey{PrivateKey: &priv, Certificate: cert, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseDSACert(req []byte) (*AddedKey, error) {
-	var k dsaCertMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-	pubKey, err := ssh.ParsePublicKey(k.CertBytes)
-	if err != nil {
-		return nil, err
-	}
-	cert, ok := pubKey.(*ssh.Certificate)
-	if !ok {
-		return nil, errors.New("agent: bad DSA certificate")
-	}
-
-	// A DSA publickey as marshaled by dsaPublicKey.Marshal() in keys.go
-	var w struct {
-		Name       string
-		P, Q, G, Y *big.Int
-	}
-	if err := ssh.Unmarshal(cert.Key.Marshal(), &w); err != nil {
-		return nil, fmt.Errorf("agent: Unmarshal failed to parse public key: %v", err)
-	}
-
-	priv := &dsa.PrivateKey{
-		PublicKey: dsa.PublicKey{
-			Parameters: dsa.Parameters{
-				P: w.P,
-				Q: w.Q,
-				G: w.G,
-			},
-			Y: w.Y,
-		},
-		X: k.X,
-	}
-
-	addedKey := &AddedKey{PrivateKey: priv, Certificate: cert, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func parseECDSACert(req []byte) (*AddedKey, error) {
-	var k ecdsaCertMsg
-	if err := ssh.Unmarshal(req, &k); err != nil {
-		return nil, err
-	}
-
-	pubKey, err := ssh.ParsePublicKey(k.CertBytes)
-	if err != nil {
-		return nil, err
-	}
-	cert, ok := pubKey.(*ssh.Certificate)
-	if !ok {
-		return nil, errors.New("agent: bad ECDSA certificate")
-	}
-
-	// An ECDSA publickey as marshaled by ecdsaPublicKey.Marshal() in keys.go
-	var ecdsaPub struct {
-		Name string
-		ID   string
-		Key  []byte
-	}
-	if err := ssh.Unmarshal(cert.Key.Marshal(), &ecdsaPub); err != nil {
-		return nil, err
-	}
-
-	priv, err := unmarshalECDSA(ecdsaPub.ID, ecdsaPub.Key, k.D)
-	if err != nil {
-		return nil, err
-	}
-
-	addedKey := &AddedKey{PrivateKey: priv, Certificate: cert, Comment: k.Comments}
-	if err := setConstraints(addedKey, k.Constraints); err != nil {
-		return nil, err
-	}
-	return addedKey, nil
-}
-
-func (s *server) insertIdentity(req []byte) error {
-	var record struct {
-		Type string `sshtype:"17|25"`
-		Rest []byte `ssh:"rest"`
-	}
-
-	if err := ssh.Unmarshal(req, &record); err != nil {
-		return err
-	}
-
-	var addedKey *AddedKey
-	var err error
-
-	switch record.Type {
-	case ssh.KeyAlgoRSA:
-		addedKey, err = parseRSAKey(req)
-	case ssh.KeyAlgoDSA:
-		addedKey, err = parseDSAKey(req)
-	case ssh.KeyAlgoECDSA256, ssh.KeyAlgoECDSA384, ssh.KeyAlgoECDSA521:
-		addedKey, err = parseECDSAKey(req)
-	case ssh.KeyAlgoED25519:
-		addedKey, err = parseEd25519Key(req)
-	case ssh.CertAlgoRSAv01:
-		addedKey, err = parseRSACert(req)
-	case ssh.CertAlgoDSAv01:
-		addedKey, err = parseDSACert(req)
-	case ssh.CertAlgoECDSA256v01, ssh.CertAlgoECDSA384v01, ssh.CertAlgoECDSA521v01:
-		addedKey, err = parseECDSACert(req)
-	case ssh.CertAlgoED25519v01:
-		addedKey, err = parseEd25519Cert(req)
-	default:
-		return fmt.Errorf("agent: not implemented: %q", record.Type)
-	}
-
-	if err != nil {
-		return err
-	}
-	return s.agent.Add(*addedKey)
-}
-
-// ServeAgent serves the agent protocol on the given connection. It
-// returns when an I/O error occurs.
-func ServeAgent(agent Agent, c io.ReadWriter) error {
-	s := &server{agent}
-
-	var length [4]byte
-	for {
-		if _, err := io.ReadFull(c, length[:]); err != nil {
-			return err
-		}
-		l := binary.BigEndian.Uint32(length[:])
-		if l > maxAgentResponseBytes {
-			// We also cap requests.
-			return fmt.Errorf("agent: request too large: %d", l)
-		}
-
-		req := make([]byte, l)
-		if _, err := io.ReadFull(c, req); err != nil {
-			return err
-		}
-
-		repData := s.processRequestBytes(req)
-		if len(repData) > maxAgentResponseBytes {
-			return fmt.Errorf("agent: reply too large: %d bytes", len(repData))
-		}
-
-		binary.BigEndian.PutUint32(length[:], uint32(len(repData)))
-		if _, err := c.Write(length[:]); err != nil {
-			return err
-		}
-		if _, err := c.Write(repData); err != nil {
-			return err
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/server_test.go b/vendor/golang.org/x/crypto/ssh/agent/server_test.go
deleted file mode 100644
index 038018e..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/server_test.go
+++ /dev/null
@@ -1,259 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package agent
-
-import (
-	"crypto"
-	"crypto/rand"
-	"fmt"
-	pseudorand "math/rand"
-	"reflect"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-)
-
-func TestServer(t *testing.T) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-	client := NewClient(c1)
-
-	go ServeAgent(NewKeyring(), c2)
-
-	testAgentInterface(t, client, testPrivateKeys["rsa"], nil, 0)
-}
-
-func TestLockServer(t *testing.T) {
-	testLockAgent(NewKeyring(), t)
-}
-
-func TestSetupForwardAgent(t *testing.T) {
-	a, b, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-
-	defer a.Close()
-	defer b.Close()
-
-	_, socket, cleanup := startOpenSSHAgent(t)
-	defer cleanup()
-
-	serverConf := ssh.ServerConfig{
-		NoClientAuth: true,
-	}
-	serverConf.AddHostKey(testSigners["rsa"])
-	incoming := make(chan *ssh.ServerConn, 1)
-	go func() {
-		conn, _, _, err := ssh.NewServerConn(a, &serverConf)
-		if err != nil {
-			t.Fatalf("Server: %v", err)
-		}
-		incoming <- conn
-	}()
-
-	conf := ssh.ClientConfig{
-		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
-	}
-	conn, chans, reqs, err := ssh.NewClientConn(b, "", &conf)
-	if err != nil {
-		t.Fatalf("NewClientConn: %v", err)
-	}
-	client := ssh.NewClient(conn, chans, reqs)
-
-	if err := ForwardToRemote(client, socket); err != nil {
-		t.Fatalf("SetupForwardAgent: %v", err)
-	}
-
-	server := <-incoming
-	ch, reqs, err := server.OpenChannel(channelType, nil)
-	if err != nil {
-		t.Fatalf("OpenChannel(%q): %v", channelType, err)
-	}
-	go ssh.DiscardRequests(reqs)
-
-	agentClient := NewClient(ch)
-	testAgentInterface(t, agentClient, testPrivateKeys["rsa"], nil, 0)
-	conn.Close()
-}
-
-func TestV1ProtocolMessages(t *testing.T) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-	c := NewClient(c1)
-
-	go ServeAgent(NewKeyring(), c2)
-
-	testV1ProtocolMessages(t, c.(*client))
-}
-
-func testV1ProtocolMessages(t *testing.T, c *client) {
-	reply, err := c.call([]byte{agentRequestV1Identities})
-	if err != nil {
-		t.Fatalf("v1 request all failed: %v", err)
-	}
-	if msg, ok := reply.(*agentV1IdentityMsg); !ok || msg.Numkeys != 0 {
-		t.Fatalf("invalid request all response: %#v", reply)
-	}
-
-	reply, err = c.call([]byte{agentRemoveAllV1Identities})
-	if err != nil {
-		t.Fatalf("v1 remove all failed: %v", err)
-	}
-	if _, ok := reply.(*successAgentMsg); !ok {
-		t.Fatalf("invalid remove all response: %#v", reply)
-	}
-}
-
-func verifyKey(sshAgent Agent) error {
-	keys, err := sshAgent.List()
-	if err != nil {
-		return fmt.Errorf("listing keys: %v", err)
-	}
-
-	if len(keys) != 1 {
-		return fmt.Errorf("bad number of keys found. expected 1, got %d", len(keys))
-	}
-
-	buf := make([]byte, 128)
-	if _, err := rand.Read(buf); err != nil {
-		return fmt.Errorf("rand: %v", err)
-	}
-
-	sig, err := sshAgent.Sign(keys[0], buf)
-	if err != nil {
-		return fmt.Errorf("sign: %v", err)
-	}
-
-	if err := keys[0].Verify(buf, sig); err != nil {
-		return fmt.Errorf("verify: %v", err)
-	}
-	return nil
-}
-
-func addKeyToAgent(key crypto.PrivateKey) error {
-	sshAgent := NewKeyring()
-	if err := sshAgent.Add(AddedKey{PrivateKey: key}); err != nil {
-		return fmt.Errorf("add: %v", err)
-	}
-	return verifyKey(sshAgent)
-}
-
-func TestKeyTypes(t *testing.T) {
-	for k, v := range testPrivateKeys {
-		if err := addKeyToAgent(v); err != nil {
-			t.Errorf("error adding key type %s, %v", k, err)
-		}
-		if err := addCertToAgentSock(v, nil); err != nil {
-			t.Errorf("error adding key type %s, %v", k, err)
-		}
-	}
-}
-
-func addCertToAgentSock(key crypto.PrivateKey, cert *ssh.Certificate) error {
-	a, b, err := netPipe()
-	if err != nil {
-		return err
-	}
-	agentServer := NewKeyring()
-	go ServeAgent(agentServer, a)
-
-	agentClient := NewClient(b)
-	if err := agentClient.Add(AddedKey{PrivateKey: key, Certificate: cert}); err != nil {
-		return fmt.Errorf("add: %v", err)
-	}
-	return verifyKey(agentClient)
-}
-
-func addCertToAgent(key crypto.PrivateKey, cert *ssh.Certificate) error {
-	sshAgent := NewKeyring()
-	if err := sshAgent.Add(AddedKey{PrivateKey: key, Certificate: cert}); err != nil {
-		return fmt.Errorf("add: %v", err)
-	}
-	return verifyKey(sshAgent)
-}
-
-func TestCertTypes(t *testing.T) {
-	for keyType, key := range testPublicKeys {
-		cert := &ssh.Certificate{
-			ValidPrincipals: []string{"gopher1"},
-			ValidAfter:      0,
-			ValidBefore:     ssh.CertTimeInfinity,
-			Key:             key,
-			Serial:          1,
-			CertType:        ssh.UserCert,
-			SignatureKey:    testPublicKeys["rsa"],
-			Permissions: ssh.Permissions{
-				CriticalOptions: map[string]string{},
-				Extensions:      map[string]string{},
-			},
-		}
-		if err := cert.SignCert(rand.Reader, testSigners["rsa"]); err != nil {
-			t.Fatalf("signcert: %v", err)
-		}
-		if err := addCertToAgent(testPrivateKeys[keyType], cert); err != nil {
-			t.Fatalf("%v", err)
-		}
-		if err := addCertToAgentSock(testPrivateKeys[keyType], cert); err != nil {
-			t.Fatalf("%v", err)
-		}
-	}
-}
-
-func TestParseConstraints(t *testing.T) {
-	// Test LifetimeSecs
-	var msg = constrainLifetimeAgentMsg{pseudorand.Uint32()}
-	lifetimeSecs, _, _, err := parseConstraints(ssh.Marshal(msg))
-	if err != nil {
-		t.Fatalf("parseConstraints: %v", err)
-	}
-	if lifetimeSecs != msg.LifetimeSecs {
-		t.Errorf("got lifetime %v, want %v", lifetimeSecs, msg.LifetimeSecs)
-	}
-
-	// Test ConfirmBeforeUse
-	_, confirmBeforeUse, _, err := parseConstraints([]byte{agentConstrainConfirm})
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-	if !confirmBeforeUse {
-		t.Error("got comfirmBeforeUse == false")
-	}
-
-	// Test ConstraintExtensions
-	var data []byte
-	var expect []ConstraintExtension
-	for i := 0; i < 10; i++ {
-		var ext = ConstraintExtension{
-			ExtensionName:    fmt.Sprintf("name%d", i),
-			ExtensionDetails: []byte(fmt.Sprintf("details: %d", i)),
-		}
-		expect = append(expect, ext)
-		data = append(data, agentConstrainExtension)
-		data = append(data, ssh.Marshal(ext)...)
-	}
-	_, _, extensions, err := parseConstraints(data)
-	if err != nil {
-		t.Fatalf("%v", err)
-	}
-	if !reflect.DeepEqual(expect, extensions) {
-		t.Errorf("got extension %v, want %v", extensions, expect)
-	}
-
-	// Test Unknown Constraint
-	_, _, _, err = parseConstraints([]byte{128})
-	if err == nil || !strings.Contains(err.Error(), "unknown constraint") {
-		t.Errorf("unexpected error: %v", err)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/agent/testdata_test.go b/vendor/golang.org/x/crypto/ssh/agent/testdata_test.go
deleted file mode 100644
index cc42a87..0000000
--- a/vendor/golang.org/x/crypto/ssh/agent/testdata_test.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// IMPLEMENTATION NOTE: To avoid a package loop, this file is in three places:
-// ssh/, ssh/agent, and ssh/test/. It should be kept in sync across all three
-// instances.
-
-package agent
-
-import (
-	"crypto/rand"
-	"fmt"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-var (
-	testPrivateKeys map[string]interface{}
-	testSigners     map[string]ssh.Signer
-	testPublicKeys  map[string]ssh.PublicKey
-)
-
-func init() {
-	var err error
-
-	n := len(testdata.PEMBytes)
-	testPrivateKeys = make(map[string]interface{}, n)
-	testSigners = make(map[string]ssh.Signer, n)
-	testPublicKeys = make(map[string]ssh.PublicKey, n)
-	for t, k := range testdata.PEMBytes {
-		testPrivateKeys[t], err = ssh.ParseRawPrivateKey(k)
-		if err != nil {
-			panic(fmt.Sprintf("Unable to parse test key %s: %v", t, err))
-		}
-		testSigners[t], err = ssh.NewSignerFromKey(testPrivateKeys[t])
-		if err != nil {
-			panic(fmt.Sprintf("Unable to create signer for test key %s: %v", t, err))
-		}
-		testPublicKeys[t] = testSigners[t].PublicKey()
-	}
-
-	// Create a cert and sign it for use in tests.
-	testCert := &ssh.Certificate{
-		Nonce:           []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		ValidPrincipals: []string{"gopher1", "gopher2"}, // increases test coverage
-		ValidAfter:      0,                              // unix epoch
-		ValidBefore:     ssh.CertTimeInfinity,           // The end of currently representable time.
-		Reserved:        []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		Key:             testPublicKeys["ecdsa"],
-		SignatureKey:    testPublicKeys["rsa"],
-		Permissions: ssh.Permissions{
-			CriticalOptions: map[string]string{},
-			Extensions:      map[string]string{},
-		},
-	}
-	testCert.SignCert(rand.Reader, testSigners["rsa"])
-	testPrivateKeys["cert"] = testPrivateKeys["ecdsa"]
-	testSigners["cert"], err = ssh.NewCertSigner(testCert, testSigners["ecdsa"])
-	if err != nil {
-		panic(fmt.Sprintf("Unable to create certificate signer: %v", err))
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/benchmark_test.go b/vendor/golang.org/x/crypto/ssh/benchmark_test.go
deleted file mode 100644
index 20c3307..0000000
--- a/vendor/golang.org/x/crypto/ssh/benchmark_test.go
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"errors"
-	"io"
-	"net"
-	"testing"
-)
-
-type server struct {
-	*ServerConn
-	chans <-chan NewChannel
-}
-
-func newServer(c net.Conn, conf *ServerConfig) (*server, error) {
-	sconn, chans, reqs, err := NewServerConn(c, conf)
-	if err != nil {
-		return nil, err
-	}
-	go DiscardRequests(reqs)
-	return &server{sconn, chans}, nil
-}
-
-func (s *server) Accept() (NewChannel, error) {
-	n, ok := <-s.chans
-	if !ok {
-		return nil, io.EOF
-	}
-	return n, nil
-}
-
-func sshPipe() (Conn, *server, error) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-
-	clientConf := ClientConfig{
-		User:            "user",
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	serverConf := ServerConfig{
-		NoClientAuth: true,
-	}
-	serverConf.AddHostKey(testSigners["ecdsa"])
-	done := make(chan *server, 1)
-	go func() {
-		server, err := newServer(c2, &serverConf)
-		if err != nil {
-			done <- nil
-		}
-		done <- server
-	}()
-
-	client, _, reqs, err := NewClientConn(c1, "", &clientConf)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	server := <-done
-	if server == nil {
-		return nil, nil, errors.New("server handshake failed.")
-	}
-	go DiscardRequests(reqs)
-
-	return client, server, nil
-}
-
-func BenchmarkEndToEnd(b *testing.B) {
-	b.StopTimer()
-
-	client, server, err := sshPipe()
-	if err != nil {
-		b.Fatalf("sshPipe: %v", err)
-	}
-
-	defer client.Close()
-	defer server.Close()
-
-	size := (1 << 20)
-	input := make([]byte, size)
-	output := make([]byte, size)
-	b.SetBytes(int64(size))
-	done := make(chan int, 1)
-
-	go func() {
-		newCh, err := server.Accept()
-		if err != nil {
-			b.Fatalf("Client: %v", err)
-		}
-		ch, incoming, err := newCh.Accept()
-		go DiscardRequests(incoming)
-		for i := 0; i < b.N; i++ {
-			if _, err := io.ReadFull(ch, output); err != nil {
-				b.Fatalf("ReadFull: %v", err)
-			}
-		}
-		ch.Close()
-		done <- 1
-	}()
-
-	ch, in, err := client.OpenChannel("speed", nil)
-	if err != nil {
-		b.Fatalf("OpenChannel: %v", err)
-	}
-	go DiscardRequests(in)
-
-	b.ResetTimer()
-	b.StartTimer()
-	for i := 0; i < b.N; i++ {
-		if _, err := ch.Write(input); err != nil {
-			b.Fatalf("WriteFull: %v", err)
-		}
-	}
-	ch.Close()
-	b.StopTimer()
-
-	<-done
-}
diff --git a/vendor/golang.org/x/crypto/ssh/buffer.go b/vendor/golang.org/x/crypto/ssh/buffer.go
deleted file mode 100644
index 1ab07d0..0000000
--- a/vendor/golang.org/x/crypto/ssh/buffer.go
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"io"
-	"sync"
-)
-
-// buffer provides a linked list buffer for data exchange
-// between producer and consumer. Theoretically the buffer is
-// of unlimited capacity as it does no allocation of its own.
-type buffer struct {
-	// protects concurrent access to head, tail and closed
-	*sync.Cond
-
-	head *element // the buffer that will be read first
-	tail *element // the buffer that will be read last
-
-	closed bool
-}
-
-// An element represents a single link in a linked list.
-type element struct {
-	buf  []byte
-	next *element
-}
-
-// newBuffer returns an empty buffer that is not closed.
-func newBuffer() *buffer {
-	e := new(element)
-	b := &buffer{
-		Cond: newCond(),
-		head: e,
-		tail: e,
-	}
-	return b
-}
-
-// write makes buf available for Read to receive.
-// buf must not be modified after the call to write.
-func (b *buffer) write(buf []byte) {
-	b.Cond.L.Lock()
-	e := &element{buf: buf}
-	b.tail.next = e
-	b.tail = e
-	b.Cond.Signal()
-	b.Cond.L.Unlock()
-}
-
-// eof closes the buffer. Reads from the buffer once all
-// the data has been consumed will receive io.EOF.
-func (b *buffer) eof() {
-	b.Cond.L.Lock()
-	b.closed = true
-	b.Cond.Signal()
-	b.Cond.L.Unlock()
-}
-
-// Read reads data from the internal buffer in buf.  Reads will block
-// if no data is available, or until the buffer is closed.
-func (b *buffer) Read(buf []byte) (n int, err error) {
-	b.Cond.L.Lock()
-	defer b.Cond.L.Unlock()
-
-	for len(buf) > 0 {
-		// if there is data in b.head, copy it
-		if len(b.head.buf) > 0 {
-			r := copy(buf, b.head.buf)
-			buf, b.head.buf = buf[r:], b.head.buf[r:]
-			n += r
-			continue
-		}
-		// if there is a next buffer, make it the head
-		if len(b.head.buf) == 0 && b.head != b.tail {
-			b.head = b.head.next
-			continue
-		}
-
-		// if at least one byte has been copied, return
-		if n > 0 {
-			break
-		}
-
-		// if nothing was read, and there is nothing outstanding
-		// check to see if the buffer is closed.
-		if b.closed {
-			err = io.EOF
-			break
-		}
-		// out of buffers, wait for producer
-		b.Cond.Wait()
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/ssh/buffer_test.go b/vendor/golang.org/x/crypto/ssh/buffer_test.go
deleted file mode 100644
index d5781cb..0000000
--- a/vendor/golang.org/x/crypto/ssh/buffer_test.go
+++ /dev/null
@@ -1,87 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"io"
-	"testing"
-)
-
-var alphabet = []byte("abcdefghijklmnopqrstuvwxyz")
-
-func TestBufferReadwrite(t *testing.T) {
-	b := newBuffer()
-	b.write(alphabet[:10])
-	r, _ := b.Read(make([]byte, 10))
-	if r != 10 {
-		t.Fatalf("Expected written == read == 10, written: 10, read %d", r)
-	}
-
-	b = newBuffer()
-	b.write(alphabet[:5])
-	r, _ = b.Read(make([]byte, 10))
-	if r != 5 {
-		t.Fatalf("Expected written == read == 5, written: 5, read %d", r)
-	}
-
-	b = newBuffer()
-	b.write(alphabet[:10])
-	r, _ = b.Read(make([]byte, 5))
-	if r != 5 {
-		t.Fatalf("Expected written == 10, read == 5, written: 10, read %d", r)
-	}
-
-	b = newBuffer()
-	b.write(alphabet[:5])
-	b.write(alphabet[5:15])
-	r, _ = b.Read(make([]byte, 10))
-	r2, _ := b.Read(make([]byte, 10))
-	if r != 10 || r2 != 5 || 15 != r+r2 {
-		t.Fatal("Expected written == read == 15")
-	}
-}
-
-func TestBufferClose(t *testing.T) {
-	b := newBuffer()
-	b.write(alphabet[:10])
-	b.eof()
-	_, err := b.Read(make([]byte, 5))
-	if err != nil {
-		t.Fatal("expected read of 5 to not return EOF")
-	}
-	b = newBuffer()
-	b.write(alphabet[:10])
-	b.eof()
-	r, err := b.Read(make([]byte, 5))
-	r2, err2 := b.Read(make([]byte, 10))
-	if r != 5 || r2 != 5 || err != nil || err2 != nil {
-		t.Fatal("expected reads of 5 and 5")
-	}
-
-	b = newBuffer()
-	b.write(alphabet[:10])
-	b.eof()
-	r, err = b.Read(make([]byte, 5))
-	r2, err2 = b.Read(make([]byte, 10))
-	r3, err3 := b.Read(make([]byte, 10))
-	if r != 5 || r2 != 5 || r3 != 0 || err != nil || err2 != nil || err3 != io.EOF {
-		t.Fatal("expected reads of 5 and 5 and 0, with EOF")
-	}
-
-	b = newBuffer()
-	b.write(make([]byte, 5))
-	b.write(make([]byte, 10))
-	b.eof()
-	r, err = b.Read(make([]byte, 9))
-	r2, err2 = b.Read(make([]byte, 3))
-	r3, err3 = b.Read(make([]byte, 3))
-	r4, err4 := b.Read(make([]byte, 10))
-	if err != nil || err2 != nil || err3 != nil || err4 != io.EOF {
-		t.Fatalf("Expected EOF on forth read only, err=%v, err2=%v, err3=%v, err4=%v", err, err2, err3, err4)
-	}
-	if r != 9 || r2 != 3 || r3 != 3 || r4 != 0 {
-		t.Fatal("Expected written == read == 15", r, r2, r3, r4)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/certs.go b/vendor/golang.org/x/crypto/ssh/certs.go
deleted file mode 100644
index 42106f3..0000000
--- a/vendor/golang.org/x/crypto/ssh/certs.go
+++ /dev/null
@@ -1,521 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"sort"
-	"time"
-)
-
-// These constants from [PROTOCOL.certkeys] represent the algorithm names
-// for certificate types supported by this package.
-const (
-	CertAlgoRSAv01      = "ssh-rsa-cert-v01@openssh.com"
-	CertAlgoDSAv01      = "ssh-dss-cert-v01@openssh.com"
-	CertAlgoECDSA256v01 = "ecdsa-sha2-nistp256-cert-v01@openssh.com"
-	CertAlgoECDSA384v01 = "ecdsa-sha2-nistp384-cert-v01@openssh.com"
-	CertAlgoECDSA521v01 = "ecdsa-sha2-nistp521-cert-v01@openssh.com"
-	CertAlgoED25519v01  = "ssh-ed25519-cert-v01@openssh.com"
-)
-
-// Certificate types distinguish between host and user
-// certificates. The values can be set in the CertType field of
-// Certificate.
-const (
-	UserCert = 1
-	HostCert = 2
-)
-
-// Signature represents a cryptographic signature.
-type Signature struct {
-	Format string
-	Blob   []byte
-}
-
-// CertTimeInfinity can be used for OpenSSHCertV01.ValidBefore to indicate that
-// a certificate does not expire.
-const CertTimeInfinity = 1<<64 - 1
-
-// An Certificate represents an OpenSSH certificate as defined in
-// [PROTOCOL.certkeys]?rev=1.8. The Certificate type implements the
-// PublicKey interface, so it can be unmarshaled using
-// ParsePublicKey.
-type Certificate struct {
-	Nonce           []byte
-	Key             PublicKey
-	Serial          uint64
-	CertType        uint32
-	KeyId           string
-	ValidPrincipals []string
-	ValidAfter      uint64
-	ValidBefore     uint64
-	Permissions
-	Reserved     []byte
-	SignatureKey PublicKey
-	Signature    *Signature
-}
-
-// genericCertData holds the key-independent part of the certificate data.
-// Overall, certificates contain an nonce, public key fields and
-// key-independent fields.
-type genericCertData struct {
-	Serial          uint64
-	CertType        uint32
-	KeyId           string
-	ValidPrincipals []byte
-	ValidAfter      uint64
-	ValidBefore     uint64
-	CriticalOptions []byte
-	Extensions      []byte
-	Reserved        []byte
-	SignatureKey    []byte
-	Signature       []byte
-}
-
-func marshalStringList(namelist []string) []byte {
-	var to []byte
-	for _, name := range namelist {
-		s := struct{ N string }{name}
-		to = append(to, Marshal(&s)...)
-	}
-	return to
-}
-
-type optionsTuple struct {
-	Key   string
-	Value []byte
-}
-
-type optionsTupleValue struct {
-	Value string
-}
-
-// serialize a map of critical options or extensions
-// issue #10569 - per [PROTOCOL.certkeys] and SSH implementation,
-// we need two length prefixes for a non-empty string value
-func marshalTuples(tups map[string]string) []byte {
-	keys := make([]string, 0, len(tups))
-	for key := range tups {
-		keys = append(keys, key)
-	}
-	sort.Strings(keys)
-
-	var ret []byte
-	for _, key := range keys {
-		s := optionsTuple{Key: key}
-		if value := tups[key]; len(value) > 0 {
-			s.Value = Marshal(&optionsTupleValue{value})
-		}
-		ret = append(ret, Marshal(&s)...)
-	}
-	return ret
-}
-
-// issue #10569 - per [PROTOCOL.certkeys] and SSH implementation,
-// we need two length prefixes for a non-empty option value
-func parseTuples(in []byte) (map[string]string, error) {
-	tups := map[string]string{}
-	var lastKey string
-	var haveLastKey bool
-
-	for len(in) > 0 {
-		var key, val, extra []byte
-		var ok bool
-
-		if key, in, ok = parseString(in); !ok {
-			return nil, errShortRead
-		}
-		keyStr := string(key)
-		// according to [PROTOCOL.certkeys], the names must be in
-		// lexical order.
-		if haveLastKey && keyStr <= lastKey {
-			return nil, fmt.Errorf("ssh: certificate options are not in lexical order")
-		}
-		lastKey, haveLastKey = keyStr, true
-		// the next field is a data field, which if non-empty has a string embedded
-		if val, in, ok = parseString(in); !ok {
-			return nil, errShortRead
-		}
-		if len(val) > 0 {
-			val, extra, ok = parseString(val)
-			if !ok {
-				return nil, errShortRead
-			}
-			if len(extra) > 0 {
-				return nil, fmt.Errorf("ssh: unexpected trailing data after certificate option value")
-			}
-			tups[keyStr] = string(val)
-		} else {
-			tups[keyStr] = ""
-		}
-	}
-	return tups, nil
-}
-
-func parseCert(in []byte, privAlgo string) (*Certificate, error) {
-	nonce, rest, ok := parseString(in)
-	if !ok {
-		return nil, errShortRead
-	}
-
-	key, rest, err := parsePubKey(rest, privAlgo)
-	if err != nil {
-		return nil, err
-	}
-
-	var g genericCertData
-	if err := Unmarshal(rest, &g); err != nil {
-		return nil, err
-	}
-
-	c := &Certificate{
-		Nonce:       nonce,
-		Key:         key,
-		Serial:      g.Serial,
-		CertType:    g.CertType,
-		KeyId:       g.KeyId,
-		ValidAfter:  g.ValidAfter,
-		ValidBefore: g.ValidBefore,
-	}
-
-	for principals := g.ValidPrincipals; len(principals) > 0; {
-		principal, rest, ok := parseString(principals)
-		if !ok {
-			return nil, errShortRead
-		}
-		c.ValidPrincipals = append(c.ValidPrincipals, string(principal))
-		principals = rest
-	}
-
-	c.CriticalOptions, err = parseTuples(g.CriticalOptions)
-	if err != nil {
-		return nil, err
-	}
-	c.Extensions, err = parseTuples(g.Extensions)
-	if err != nil {
-		return nil, err
-	}
-	c.Reserved = g.Reserved
-	k, err := ParsePublicKey(g.SignatureKey)
-	if err != nil {
-		return nil, err
-	}
-
-	c.SignatureKey = k
-	c.Signature, rest, ok = parseSignatureBody(g.Signature)
-	if !ok || len(rest) > 0 {
-		return nil, errors.New("ssh: signature parse error")
-	}
-
-	return c, nil
-}
-
-type openSSHCertSigner struct {
-	pub    *Certificate
-	signer Signer
-}
-
-// NewCertSigner returns a Signer that signs with the given Certificate, whose
-// private key is held by signer. It returns an error if the public key in cert
-// doesn't match the key used by signer.
-func NewCertSigner(cert *Certificate, signer Signer) (Signer, error) {
-	if bytes.Compare(cert.Key.Marshal(), signer.PublicKey().Marshal()) != 0 {
-		return nil, errors.New("ssh: signer and cert have different public key")
-	}
-
-	return &openSSHCertSigner{cert, signer}, nil
-}
-
-func (s *openSSHCertSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
-	return s.signer.Sign(rand, data)
-}
-
-func (s *openSSHCertSigner) PublicKey() PublicKey {
-	return s.pub
-}
-
-const sourceAddressCriticalOption = "source-address"
-
-// CertChecker does the work of verifying a certificate. Its methods
-// can be plugged into ClientConfig.HostKeyCallback and
-// ServerConfig.PublicKeyCallback. For the CertChecker to work,
-// minimally, the IsAuthority callback should be set.
-type CertChecker struct {
-	// SupportedCriticalOptions lists the CriticalOptions that the
-	// server application layer understands. These are only used
-	// for user certificates.
-	SupportedCriticalOptions []string
-
-	// IsUserAuthority should return true if the key is recognized as an
-	// authority for the given user certificate. This allows for
-	// certificates to be signed by other certificates. This must be set
-	// if this CertChecker will be checking user certificates.
-	IsUserAuthority func(auth PublicKey) bool
-
-	// IsHostAuthority should report whether the key is recognized as
-	// an authority for this host. This allows for certificates to be
-	// signed by other keys, and for those other keys to only be valid
-	// signers for particular hostnames. This must be set if this
-	// CertChecker will be checking host certificates.
-	IsHostAuthority func(auth PublicKey, address string) bool
-
-	// Clock is used for verifying time stamps. If nil, time.Now
-	// is used.
-	Clock func() time.Time
-
-	// UserKeyFallback is called when CertChecker.Authenticate encounters a
-	// public key that is not a certificate. It must implement validation
-	// of user keys or else, if nil, all such keys are rejected.
-	UserKeyFallback func(conn ConnMetadata, key PublicKey) (*Permissions, error)
-
-	// HostKeyFallback is called when CertChecker.CheckHostKey encounters a
-	// public key that is not a certificate. It must implement host key
-	// validation or else, if nil, all such keys are rejected.
-	HostKeyFallback HostKeyCallback
-
-	// IsRevoked is called for each certificate so that revocation checking
-	// can be implemented. It should return true if the given certificate
-	// is revoked and false otherwise. If nil, no certificates are
-	// considered to have been revoked.
-	IsRevoked func(cert *Certificate) bool
-}
-
-// CheckHostKey checks a host key certificate. This method can be
-// plugged into ClientConfig.HostKeyCallback.
-func (c *CertChecker) CheckHostKey(addr string, remote net.Addr, key PublicKey) error {
-	cert, ok := key.(*Certificate)
-	if !ok {
-		if c.HostKeyFallback != nil {
-			return c.HostKeyFallback(addr, remote, key)
-		}
-		return errors.New("ssh: non-certificate host key")
-	}
-	if cert.CertType != HostCert {
-		return fmt.Errorf("ssh: certificate presented as a host key has type %d", cert.CertType)
-	}
-	if !c.IsHostAuthority(cert.SignatureKey, addr) {
-		return fmt.Errorf("ssh: no authorities for hostname: %v", addr)
-	}
-
-	hostname, _, err := net.SplitHostPort(addr)
-	if err != nil {
-		return err
-	}
-
-	// Pass hostname only as principal for host certificates (consistent with OpenSSH)
-	return c.CheckCert(hostname, cert)
-}
-
-// Authenticate checks a user certificate. Authenticate can be used as
-// a value for ServerConfig.PublicKeyCallback.
-func (c *CertChecker) Authenticate(conn ConnMetadata, pubKey PublicKey) (*Permissions, error) {
-	cert, ok := pubKey.(*Certificate)
-	if !ok {
-		if c.UserKeyFallback != nil {
-			return c.UserKeyFallback(conn, pubKey)
-		}
-		return nil, errors.New("ssh: normal key pairs not accepted")
-	}
-
-	if cert.CertType != UserCert {
-		return nil, fmt.Errorf("ssh: cert has type %d", cert.CertType)
-	}
-	if !c.IsUserAuthority(cert.SignatureKey) {
-		return nil, fmt.Errorf("ssh: certificate signed by unrecognized authority")
-	}
-
-	if err := c.CheckCert(conn.User(), cert); err != nil {
-		return nil, err
-	}
-
-	return &cert.Permissions, nil
-}
-
-// CheckCert checks CriticalOptions, ValidPrincipals, revocation, timestamp and
-// the signature of the certificate.
-func (c *CertChecker) CheckCert(principal string, cert *Certificate) error {
-	if c.IsRevoked != nil && c.IsRevoked(cert) {
-		return fmt.Errorf("ssh: certificate serial %d revoked", cert.Serial)
-	}
-
-	for opt := range cert.CriticalOptions {
-		// sourceAddressCriticalOption will be enforced by
-		// serverAuthenticate
-		if opt == sourceAddressCriticalOption {
-			continue
-		}
-
-		found := false
-		for _, supp := range c.SupportedCriticalOptions {
-			if supp == opt {
-				found = true
-				break
-			}
-		}
-		if !found {
-			return fmt.Errorf("ssh: unsupported critical option %q in certificate", opt)
-		}
-	}
-
-	if len(cert.ValidPrincipals) > 0 {
-		// By default, certs are valid for all users/hosts.
-		found := false
-		for _, p := range cert.ValidPrincipals {
-			if p == principal {
-				found = true
-				break
-			}
-		}
-		if !found {
-			return fmt.Errorf("ssh: principal %q not in the set of valid principals for given certificate: %q", principal, cert.ValidPrincipals)
-		}
-	}
-
-	clock := c.Clock
-	if clock == nil {
-		clock = time.Now
-	}
-
-	unixNow := clock().Unix()
-	if after := int64(cert.ValidAfter); after < 0 || unixNow < int64(cert.ValidAfter) {
-		return fmt.Errorf("ssh: cert is not yet valid")
-	}
-	if before := int64(cert.ValidBefore); cert.ValidBefore != uint64(CertTimeInfinity) && (unixNow >= before || before < 0) {
-		return fmt.Errorf("ssh: cert has expired")
-	}
-	if err := cert.SignatureKey.Verify(cert.bytesForSigning(), cert.Signature); err != nil {
-		return fmt.Errorf("ssh: certificate signature does not verify")
-	}
-
-	return nil
-}
-
-// SignCert sets c.SignatureKey to the authority's public key and stores a
-// Signature, by authority, in the certificate.
-func (c *Certificate) SignCert(rand io.Reader, authority Signer) error {
-	c.Nonce = make([]byte, 32)
-	if _, err := io.ReadFull(rand, c.Nonce); err != nil {
-		return err
-	}
-	c.SignatureKey = authority.PublicKey()
-
-	sig, err := authority.Sign(rand, c.bytesForSigning())
-	if err != nil {
-		return err
-	}
-	c.Signature = sig
-	return nil
-}
-
-var certAlgoNames = map[string]string{
-	KeyAlgoRSA:      CertAlgoRSAv01,
-	KeyAlgoDSA:      CertAlgoDSAv01,
-	KeyAlgoECDSA256: CertAlgoECDSA256v01,
-	KeyAlgoECDSA384: CertAlgoECDSA384v01,
-	KeyAlgoECDSA521: CertAlgoECDSA521v01,
-	KeyAlgoED25519:  CertAlgoED25519v01,
-}
-
-// certToPrivAlgo returns the underlying algorithm for a certificate algorithm.
-// Panics if a non-certificate algorithm is passed.
-func certToPrivAlgo(algo string) string {
-	for privAlgo, pubAlgo := range certAlgoNames {
-		if pubAlgo == algo {
-			return privAlgo
-		}
-	}
-	panic("unknown cert algorithm")
-}
-
-func (cert *Certificate) bytesForSigning() []byte {
-	c2 := *cert
-	c2.Signature = nil
-	out := c2.Marshal()
-	// Drop trailing signature length.
-	return out[:len(out)-4]
-}
-
-// Marshal serializes c into OpenSSH's wire format. It is part of the
-// PublicKey interface.
-func (c *Certificate) Marshal() []byte {
-	generic := genericCertData{
-		Serial:          c.Serial,
-		CertType:        c.CertType,
-		KeyId:           c.KeyId,
-		ValidPrincipals: marshalStringList(c.ValidPrincipals),
-		ValidAfter:      uint64(c.ValidAfter),
-		ValidBefore:     uint64(c.ValidBefore),
-		CriticalOptions: marshalTuples(c.CriticalOptions),
-		Extensions:      marshalTuples(c.Extensions),
-		Reserved:        c.Reserved,
-		SignatureKey:    c.SignatureKey.Marshal(),
-	}
-	if c.Signature != nil {
-		generic.Signature = Marshal(c.Signature)
-	}
-	genericBytes := Marshal(&generic)
-	keyBytes := c.Key.Marshal()
-	_, keyBytes, _ = parseString(keyBytes)
-	prefix := Marshal(&struct {
-		Name  string
-		Nonce []byte
-		Key   []byte `ssh:"rest"`
-	}{c.Type(), c.Nonce, keyBytes})
-
-	result := make([]byte, 0, len(prefix)+len(genericBytes))
-	result = append(result, prefix...)
-	result = append(result, genericBytes...)
-	return result
-}
-
-// Type returns the key name. It is part of the PublicKey interface.
-func (c *Certificate) Type() string {
-	algo, ok := certAlgoNames[c.Key.Type()]
-	if !ok {
-		panic("unknown cert key type " + c.Key.Type())
-	}
-	return algo
-}
-
-// Verify verifies a signature against the certificate's public
-// key. It is part of the PublicKey interface.
-func (c *Certificate) Verify(data []byte, sig *Signature) error {
-	return c.Key.Verify(data, sig)
-}
-
-func parseSignatureBody(in []byte) (out *Signature, rest []byte, ok bool) {
-	format, in, ok := parseString(in)
-	if !ok {
-		return
-	}
-
-	out = &Signature{
-		Format: string(format),
-	}
-
-	if out.Blob, in, ok = parseString(in); !ok {
-		return
-	}
-
-	return out, in, ok
-}
-
-func parseSignature(in []byte) (out *Signature, rest []byte, ok bool) {
-	sigBytes, rest, ok := parseString(in)
-	if !ok {
-		return
-	}
-
-	out, trailing, ok := parseSignatureBody(sigBytes)
-	if !ok || len(trailing) > 0 {
-		return nil, nil, false
-	}
-	return
-}
diff --git a/vendor/golang.org/x/crypto/ssh/certs_test.go b/vendor/golang.org/x/crypto/ssh/certs_test.go
deleted file mode 100644
index c8e7cf5..0000000
--- a/vendor/golang.org/x/crypto/ssh/certs_test.go
+++ /dev/null
@@ -1,335 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"net"
-	"reflect"
-	"testing"
-	"time"
-
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-// Cert generated by ssh-keygen 6.0p1 Debian-4.
-// % ssh-keygen -s ca-key -I test user-key
-const exampleSSHCert = `ssh-rsa-cert-v01@openssh.com AAAAHHNzaC1yc2EtY2VydC12MDFAb3BlbnNzaC5jb20AAAAgb1srW/W3ZDjYAO45xLYAwzHBDLsJ4Ux6ICFIkTjb1LEAAAADAQABAAAAYQCkoR51poH0wE8w72cqSB8Sszx+vAhzcMdCO0wqHTj7UNENHWEXGrU0E0UQekD7U+yhkhtoyjbPOVIP7hNa6aRk/ezdh/iUnCIt4Jt1v3Z1h1P+hA4QuYFMHNB+rmjPwAcAAAAAAAAAAAAAAAEAAAAEdGVzdAAAAAAAAAAAAAAAAP//////////AAAAAAAAAIIAAAAVcGVybWl0LVgxMS1mb3J3YXJkaW5nAAAAAAAAABdwZXJtaXQtYWdlbnQtZm9yd2FyZGluZwAAAAAAAAAWcGVybWl0LXBvcnQtZm9yd2FyZGluZwAAAAAAAAAKcGVybWl0LXB0eQAAAAAAAAAOcGVybWl0LXVzZXItcmMAAAAAAAAAAAAAAHcAAAAHc3NoLXJzYQAAAAMBAAEAAABhANFS2kaktpSGc+CcmEKPyw9mJC4nZKxHKTgLVZeaGbFZOvJTNzBspQHdy7Q1uKSfktxpgjZnksiu/tFF9ngyY2KFoc+U88ya95IZUycBGCUbBQ8+bhDtw/icdDGQD5WnUwAAAG8AAAAHc3NoLXJzYQAAAGC8Y9Z2LQKhIhxf52773XaWrXdxP0t3GBVo4A10vUWiYoAGepr6rQIoGGXFxT4B9Gp+nEBJjOwKDXPrAevow0T9ca8gZN+0ykbhSrXLE5Ao48rqr3zP4O1/9P7e6gp0gw8=`
-
-func TestParseCert(t *testing.T) {
-	authKeyBytes := []byte(exampleSSHCert)
-
-	key, _, _, rest, err := ParseAuthorizedKey(authKeyBytes)
-	if err != nil {
-		t.Fatalf("ParseAuthorizedKey: %v", err)
-	}
-	if len(rest) > 0 {
-		t.Errorf("rest: got %q, want empty", rest)
-	}
-
-	if _, ok := key.(*Certificate); !ok {
-		t.Fatalf("got %v (%T), want *Certificate", key, key)
-	}
-
-	marshaled := MarshalAuthorizedKey(key)
-	// Before comparison, remove the trailing newline that
-	// MarshalAuthorizedKey adds.
-	marshaled = marshaled[:len(marshaled)-1]
-	if !bytes.Equal(authKeyBytes, marshaled) {
-		t.Errorf("marshaled certificate does not match original: got %q, want %q", marshaled, authKeyBytes)
-	}
-}
-
-// Cert generated by ssh-keygen OpenSSH_6.8p1 OS X 10.10.3
-// % ssh-keygen -s ca -I testcert -O source-address=192.168.1.0/24 -O force-command=/bin/sleep user.pub
-// user.pub key: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDACh1rt2DXfV3hk6fszSQcQ/rueMId0kVD9U7nl8cfEnFxqOCrNT92g4laQIGl2mn8lsGZfTLg8ksHq3gkvgO3oo/0wHy4v32JeBOHTsN5AL4gfHNEhWeWb50ev47hnTsRIt9P4dxogeUo/hTu7j9+s9lLpEQXCvq6xocXQt0j8MV9qZBBXFLXVT3cWIkSqOdwt/5ZBg+1GSrc7WfCXVWgTk4a20uPMuJPxU4RQwZW6X3+O8Pqo8C3cW0OzZRFP6gUYUKUsTI5WntlS+LAxgw1mZNsozFGdbiOPRnEryE3SRldh9vjDR3tin1fGpA5P7+CEB/bqaXtG3V+F2OkqaMN
-// Critical Options:
-//         force-command /bin/sleep
-//         source-address 192.168.1.0/24
-// Extensions:
-//         permit-X11-forwarding
-//         permit-agent-forwarding
-//         permit-port-forwarding
-//         permit-pty
-//         permit-user-rc
-const exampleSSHCertWithOptions = `ssh-rsa-cert-v01@openssh.com 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`
-
-func TestParseCertWithOptions(t *testing.T) {
-	opts := map[string]string{
-		"source-address": "192.168.1.0/24",
-		"force-command":  "/bin/sleep",
-	}
-	exts := map[string]string{
-		"permit-X11-forwarding":   "",
-		"permit-agent-forwarding": "",
-		"permit-port-forwarding":  "",
-		"permit-pty":              "",
-		"permit-user-rc":          "",
-	}
-	authKeyBytes := []byte(exampleSSHCertWithOptions)
-
-	key, _, _, rest, err := ParseAuthorizedKey(authKeyBytes)
-	if err != nil {
-		t.Fatalf("ParseAuthorizedKey: %v", err)
-	}
-	if len(rest) > 0 {
-		t.Errorf("rest: got %q, want empty", rest)
-	}
-	cert, ok := key.(*Certificate)
-	if !ok {
-		t.Fatalf("got %v (%T), want *Certificate", key, key)
-	}
-	if !reflect.DeepEqual(cert.CriticalOptions, opts) {
-		t.Errorf("unexpected critical options - got %v, want %v", cert.CriticalOptions, opts)
-	}
-	if !reflect.DeepEqual(cert.Extensions, exts) {
-		t.Errorf("unexpected Extensions - got %v, want %v", cert.Extensions, exts)
-	}
-	marshaled := MarshalAuthorizedKey(key)
-	// Before comparison, remove the trailing newline that
-	// MarshalAuthorizedKey adds.
-	marshaled = marshaled[:len(marshaled)-1]
-	if !bytes.Equal(authKeyBytes, marshaled) {
-		t.Errorf("marshaled certificate does not match original: got %q, want %q", marshaled, authKeyBytes)
-	}
-}
-
-func TestValidateCert(t *testing.T) {
-	key, _, _, _, err := ParseAuthorizedKey([]byte(exampleSSHCert))
-	if err != nil {
-		t.Fatalf("ParseAuthorizedKey: %v", err)
-	}
-	validCert, ok := key.(*Certificate)
-	if !ok {
-		t.Fatalf("got %v (%T), want *Certificate", key, key)
-	}
-	checker := CertChecker{}
-	checker.IsUserAuthority = func(k PublicKey) bool {
-		return bytes.Equal(k.Marshal(), validCert.SignatureKey.Marshal())
-	}
-
-	if err := checker.CheckCert("user", validCert); err != nil {
-		t.Errorf("Unable to validate certificate: %v", err)
-	}
-	invalidCert := &Certificate{
-		Key:          testPublicKeys["rsa"],
-		SignatureKey: testPublicKeys["ecdsa"],
-		ValidBefore:  CertTimeInfinity,
-		Signature:    &Signature{},
-	}
-	if err := checker.CheckCert("user", invalidCert); err == nil {
-		t.Error("Invalid cert signature passed validation")
-	}
-}
-
-func TestValidateCertTime(t *testing.T) {
-	cert := Certificate{
-		ValidPrincipals: []string{"user"},
-		Key:             testPublicKeys["rsa"],
-		ValidAfter:      50,
-		ValidBefore:     100,
-	}
-
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-
-	for ts, ok := range map[int64]bool{
-		25:  false,
-		50:  true,
-		99:  true,
-		100: false,
-		125: false,
-	} {
-		checker := CertChecker{
-			Clock: func() time.Time { return time.Unix(ts, 0) },
-		}
-		checker.IsUserAuthority = func(k PublicKey) bool {
-			return bytes.Equal(k.Marshal(),
-				testPublicKeys["ecdsa"].Marshal())
-		}
-
-		if v := checker.CheckCert("user", &cert); (v == nil) != ok {
-			t.Errorf("Authenticate(%d): %v", ts, v)
-		}
-	}
-}
-
-// TODO(hanwen): tests for
-//
-// host keys:
-// * fallbacks
-
-func TestHostKeyCert(t *testing.T) {
-	cert := &Certificate{
-		ValidPrincipals: []string{"hostname", "hostname.domain", "otherhost"},
-		Key:             testPublicKeys["rsa"],
-		ValidBefore:     CertTimeInfinity,
-		CertType:        HostCert,
-	}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-
-	checker := &CertChecker{
-		IsHostAuthority: func(p PublicKey, addr string) bool {
-			return addr == "hostname:22" && bytes.Equal(testPublicKeys["ecdsa"].Marshal(), p.Marshal())
-		},
-	}
-
-	certSigner, err := NewCertSigner(cert, testSigners["rsa"])
-	if err != nil {
-		t.Errorf("NewCertSigner: %v", err)
-	}
-
-	for _, test := range []struct {
-		addr    string
-		succeed bool
-	}{
-		{addr: "hostname:22", succeed: true},
-		{addr: "otherhost:22", succeed: false}, // The certificate is valid for 'otherhost' as hostname, but we only recognize the authority of the signer for the address 'hostname:22'
-		{addr: "lasthost:22", succeed: false},
-	} {
-		c1, c2, err := netPipe()
-		if err != nil {
-			t.Fatalf("netPipe: %v", err)
-		}
-		defer c1.Close()
-		defer c2.Close()
-
-		errc := make(chan error)
-
-		go func() {
-			conf := ServerConfig{
-				NoClientAuth: true,
-			}
-			conf.AddHostKey(certSigner)
-			_, _, _, err := NewServerConn(c1, &conf)
-			errc <- err
-		}()
-
-		config := &ClientConfig{
-			User:            "user",
-			HostKeyCallback: checker.CheckHostKey,
-		}
-		_, _, _, err = NewClientConn(c2, test.addr, config)
-
-		if (err == nil) != test.succeed {
-			t.Fatalf("NewClientConn(%q): %v", test.addr, err)
-		}
-
-		err = <-errc
-		if (err == nil) != test.succeed {
-			t.Fatalf("NewServerConn(%q): %v", test.addr, err)
-		}
-	}
-}
-
-func TestCertTypes(t *testing.T) {
-	var testVars = []struct {
-		name string
-		keys func() Signer
-	}{
-		{
-			name: CertAlgoECDSA256v01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["ecdsap256"])
-				return s
-			},
-		},
-		{
-			name: CertAlgoECDSA384v01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["ecdsap384"])
-				return s
-			},
-		},
-		{
-			name: CertAlgoECDSA521v01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["ecdsap521"])
-				return s
-			},
-		},
-		{
-			name: CertAlgoED25519v01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["ed25519"])
-				return s
-			},
-		},
-		{
-			name: CertAlgoRSAv01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["rsa"])
-				return s
-			},
-		},
-		{
-			name: CertAlgoDSAv01,
-			keys: func() Signer {
-				s, _ := ParsePrivateKey(testdata.PEMBytes["dsa"])
-				return s
-			},
-		},
-	}
-
-	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
-	if err != nil {
-		t.Fatalf("error generating host key: %v", err)
-	}
-
-	signer, err := NewSignerFromKey(k)
-	if err != nil {
-		t.Fatalf("error generating signer for ssh listener: %v", err)
-	}
-
-	conf := &ServerConfig{
-		PublicKeyCallback: func(c ConnMetadata, k PublicKey) (*Permissions, error) {
-			return new(Permissions), nil
-		},
-	}
-	conf.AddHostKey(signer)
-
-	for _, m := range testVars {
-		t.Run(m.name, func(t *testing.T) {
-
-			c1, c2, err := netPipe()
-			if err != nil {
-				t.Fatalf("netPipe: %v", err)
-			}
-			defer c1.Close()
-			defer c2.Close()
-
-			go NewServerConn(c1, conf)
-
-			priv := m.keys()
-			if err != nil {
-				t.Fatalf("error generating ssh pubkey: %v", err)
-			}
-
-			cert := &Certificate{
-				CertType: UserCert,
-				Key:      priv.PublicKey(),
-			}
-			cert.SignCert(rand.Reader, priv)
-
-			certSigner, err := NewCertSigner(cert, priv)
-			if err != nil {
-				t.Fatalf("error generating cert signer: %v", err)
-			}
-
-			config := &ClientConfig{
-				User:            "user",
-				HostKeyCallback: func(h string, r net.Addr, k PublicKey) error { return nil },
-				Auth:            []AuthMethod{PublicKeys(certSigner)},
-			}
-
-			_, _, _, err = NewClientConn(c2, "", config)
-			if err != nil {
-				t.Fatalf("error connecting: %v", err)
-			}
-		})
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/channel.go b/vendor/golang.org/x/crypto/ssh/channel.go
deleted file mode 100644
index c0834c0..0000000
--- a/vendor/golang.org/x/crypto/ssh/channel.go
+++ /dev/null
@@ -1,633 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"sync"
-)
-
-const (
-	minPacketLength = 9
-	// channelMaxPacket contains the maximum number of bytes that will be
-	// sent in a single packet. As per RFC 4253, section 6.1, 32k is also
-	// the minimum.
-	channelMaxPacket = 1 << 15
-	// We follow OpenSSH here.
-	channelWindowSize = 64 * channelMaxPacket
-)
-
-// NewChannel represents an incoming request to a channel. It must either be
-// accepted for use by calling Accept, or rejected by calling Reject.
-type NewChannel interface {
-	// Accept accepts the channel creation request. It returns the Channel
-	// and a Go channel containing SSH requests. The Go channel must be
-	// serviced otherwise the Channel will hang.
-	Accept() (Channel, <-chan *Request, error)
-
-	// Reject rejects the channel creation request. After calling
-	// this, no other methods on the Channel may be called.
-	Reject(reason RejectionReason, message string) error
-
-	// ChannelType returns the type of the channel, as supplied by the
-	// client.
-	ChannelType() string
-
-	// ExtraData returns the arbitrary payload for this channel, as supplied
-	// by the client. This data is specific to the channel type.
-	ExtraData() []byte
-}
-
-// A Channel is an ordered, reliable, flow-controlled, duplex stream
-// that is multiplexed over an SSH connection.
-type Channel interface {
-	// Read reads up to len(data) bytes from the channel.
-	Read(data []byte) (int, error)
-
-	// Write writes len(data) bytes to the channel.
-	Write(data []byte) (int, error)
-
-	// Close signals end of channel use. No data may be sent after this
-	// call.
-	Close() error
-
-	// CloseWrite signals the end of sending in-band
-	// data. Requests may still be sent, and the other side may
-	// still send data
-	CloseWrite() error
-
-	// SendRequest sends a channel request.  If wantReply is true,
-	// it will wait for a reply and return the result as a
-	// boolean, otherwise the return value will be false. Channel
-	// requests are out-of-band messages so they may be sent even
-	// if the data stream is closed or blocked by flow control.
-	// If the channel is closed before a reply is returned, io.EOF
-	// is returned.
-	SendRequest(name string, wantReply bool, payload []byte) (bool, error)
-
-	// Stderr returns an io.ReadWriter that writes to this channel
-	// with the extended data type set to stderr. Stderr may
-	// safely be read and written from a different goroutine than
-	// Read and Write respectively.
-	Stderr() io.ReadWriter
-}
-
-// Request is a request sent outside of the normal stream of
-// data. Requests can either be specific to an SSH channel, or they
-// can be global.
-type Request struct {
-	Type      string
-	WantReply bool
-	Payload   []byte
-
-	ch  *channel
-	mux *mux
-}
-
-// Reply sends a response to a request. It must be called for all requests
-// where WantReply is true and is a no-op otherwise. The payload argument is
-// ignored for replies to channel-specific requests.
-func (r *Request) Reply(ok bool, payload []byte) error {
-	if !r.WantReply {
-		return nil
-	}
-
-	if r.ch == nil {
-		return r.mux.ackRequest(ok, payload)
-	}
-
-	return r.ch.ackRequest(ok)
-}
-
-// RejectionReason is an enumeration used when rejecting channel creation
-// requests. See RFC 4254, section 5.1.
-type RejectionReason uint32
-
-const (
-	Prohibited RejectionReason = iota + 1
-	ConnectionFailed
-	UnknownChannelType
-	ResourceShortage
-)
-
-// String converts the rejection reason to human readable form.
-func (r RejectionReason) String() string {
-	switch r {
-	case Prohibited:
-		return "administratively prohibited"
-	case ConnectionFailed:
-		return "connect failed"
-	case UnknownChannelType:
-		return "unknown channel type"
-	case ResourceShortage:
-		return "resource shortage"
-	}
-	return fmt.Sprintf("unknown reason %d", int(r))
-}
-
-func min(a uint32, b int) uint32 {
-	if a < uint32(b) {
-		return a
-	}
-	return uint32(b)
-}
-
-type channelDirection uint8
-
-const (
-	channelInbound channelDirection = iota
-	channelOutbound
-)
-
-// channel is an implementation of the Channel interface that works
-// with the mux class.
-type channel struct {
-	// R/O after creation
-	chanType          string
-	extraData         []byte
-	localId, remoteId uint32
-
-	// maxIncomingPayload and maxRemotePayload are the maximum
-	// payload sizes of normal and extended data packets for
-	// receiving and sending, respectively. The wire packet will
-	// be 9 or 13 bytes larger (excluding encryption overhead).
-	maxIncomingPayload uint32
-	maxRemotePayload   uint32
-
-	mux *mux
-
-	// decided is set to true if an accept or reject message has been sent
-	// (for outbound channels) or received (for inbound channels).
-	decided bool
-
-	// direction contains either channelOutbound, for channels created
-	// locally, or channelInbound, for channels created by the peer.
-	direction channelDirection
-
-	// Pending internal channel messages.
-	msg chan interface{}
-
-	// Since requests have no ID, there can be only one request
-	// with WantReply=true outstanding.  This lock is held by a
-	// goroutine that has such an outgoing request pending.
-	sentRequestMu sync.Mutex
-
-	incomingRequests chan *Request
-
-	sentEOF bool
-
-	// thread-safe data
-	remoteWin  window
-	pending    *buffer
-	extPending *buffer
-
-	// windowMu protects myWindow, the flow-control window.
-	windowMu sync.Mutex
-	myWindow uint32
-
-	// writeMu serializes calls to mux.conn.writePacket() and
-	// protects sentClose and packetPool. This mutex must be
-	// different from windowMu, as writePacket can block if there
-	// is a key exchange pending.
-	writeMu   sync.Mutex
-	sentClose bool
-
-	// packetPool has a buffer for each extended channel ID to
-	// save allocations during writes.
-	packetPool map[uint32][]byte
-}
-
-// writePacket sends a packet. If the packet is a channel close, it updates
-// sentClose. This method takes the lock c.writeMu.
-func (ch *channel) writePacket(packet []byte) error {
-	ch.writeMu.Lock()
-	if ch.sentClose {
-		ch.writeMu.Unlock()
-		return io.EOF
-	}
-	ch.sentClose = (packet[0] == msgChannelClose)
-	err := ch.mux.conn.writePacket(packet)
-	ch.writeMu.Unlock()
-	return err
-}
-
-func (ch *channel) sendMessage(msg interface{}) error {
-	if debugMux {
-		log.Printf("send(%d): %#v", ch.mux.chanList.offset, msg)
-	}
-
-	p := Marshal(msg)
-	binary.BigEndian.PutUint32(p[1:], ch.remoteId)
-	return ch.writePacket(p)
-}
-
-// WriteExtended writes data to a specific extended stream. These streams are
-// used, for example, for stderr.
-func (ch *channel) WriteExtended(data []byte, extendedCode uint32) (n int, err error) {
-	if ch.sentEOF {
-		return 0, io.EOF
-	}
-	// 1 byte message type, 4 bytes remoteId, 4 bytes data length
-	opCode := byte(msgChannelData)
-	headerLength := uint32(9)
-	if extendedCode > 0 {
-		headerLength += 4
-		opCode = msgChannelExtendedData
-	}
-
-	ch.writeMu.Lock()
-	packet := ch.packetPool[extendedCode]
-	// We don't remove the buffer from packetPool, so
-	// WriteExtended calls from different goroutines will be
-	// flagged as errors by the race detector.
-	ch.writeMu.Unlock()
-
-	for len(data) > 0 {
-		space := min(ch.maxRemotePayload, len(data))
-		if space, err = ch.remoteWin.reserve(space); err != nil {
-			return n, err
-		}
-		if want := headerLength + space; uint32(cap(packet)) < want {
-			packet = make([]byte, want)
-		} else {
-			packet = packet[:want]
-		}
-
-		todo := data[:space]
-
-		packet[0] = opCode
-		binary.BigEndian.PutUint32(packet[1:], ch.remoteId)
-		if extendedCode > 0 {
-			binary.BigEndian.PutUint32(packet[5:], uint32(extendedCode))
-		}
-		binary.BigEndian.PutUint32(packet[headerLength-4:], uint32(len(todo)))
-		copy(packet[headerLength:], todo)
-		if err = ch.writePacket(packet); err != nil {
-			return n, err
-		}
-
-		n += len(todo)
-		data = data[len(todo):]
-	}
-
-	ch.writeMu.Lock()
-	ch.packetPool[extendedCode] = packet
-	ch.writeMu.Unlock()
-
-	return n, err
-}
-
-func (ch *channel) handleData(packet []byte) error {
-	headerLen := 9
-	isExtendedData := packet[0] == msgChannelExtendedData
-	if isExtendedData {
-		headerLen = 13
-	}
-	if len(packet) < headerLen {
-		// malformed data packet
-		return parseError(packet[0])
-	}
-
-	var extended uint32
-	if isExtendedData {
-		extended = binary.BigEndian.Uint32(packet[5:])
-	}
-
-	length := binary.BigEndian.Uint32(packet[headerLen-4 : headerLen])
-	if length == 0 {
-		return nil
-	}
-	if length > ch.maxIncomingPayload {
-		// TODO(hanwen): should send Disconnect?
-		return errors.New("ssh: incoming packet exceeds maximum payload size")
-	}
-
-	data := packet[headerLen:]
-	if length != uint32(len(data)) {
-		return errors.New("ssh: wrong packet length")
-	}
-
-	ch.windowMu.Lock()
-	if ch.myWindow < length {
-		ch.windowMu.Unlock()
-		// TODO(hanwen): should send Disconnect with reason?
-		return errors.New("ssh: remote side wrote too much")
-	}
-	ch.myWindow -= length
-	ch.windowMu.Unlock()
-
-	if extended == 1 {
-		ch.extPending.write(data)
-	} else if extended > 0 {
-		// discard other extended data.
-	} else {
-		ch.pending.write(data)
-	}
-	return nil
-}
-
-func (c *channel) adjustWindow(n uint32) error {
-	c.windowMu.Lock()
-	// Since myWindow is managed on our side, and can never exceed
-	// the initial window setting, we don't worry about overflow.
-	c.myWindow += uint32(n)
-	c.windowMu.Unlock()
-	return c.sendMessage(windowAdjustMsg{
-		AdditionalBytes: uint32(n),
-	})
-}
-
-func (c *channel) ReadExtended(data []byte, extended uint32) (n int, err error) {
-	switch extended {
-	case 1:
-		n, err = c.extPending.Read(data)
-	case 0:
-		n, err = c.pending.Read(data)
-	default:
-		return 0, fmt.Errorf("ssh: extended code %d unimplemented", extended)
-	}
-
-	if n > 0 {
-		err = c.adjustWindow(uint32(n))
-		// sendWindowAdjust can return io.EOF if the remote
-		// peer has closed the connection, however we want to
-		// defer forwarding io.EOF to the caller of Read until
-		// the buffer has been drained.
-		if n > 0 && err == io.EOF {
-			err = nil
-		}
-	}
-
-	return n, err
-}
-
-func (c *channel) close() {
-	c.pending.eof()
-	c.extPending.eof()
-	close(c.msg)
-	close(c.incomingRequests)
-	c.writeMu.Lock()
-	// This is not necessary for a normal channel teardown, but if
-	// there was another error, it is.
-	c.sentClose = true
-	c.writeMu.Unlock()
-	// Unblock writers.
-	c.remoteWin.close()
-}
-
-// responseMessageReceived is called when a success or failure message is
-// received on a channel to check that such a message is reasonable for the
-// given channel.
-func (ch *channel) responseMessageReceived() error {
-	if ch.direction == channelInbound {
-		return errors.New("ssh: channel response message received on inbound channel")
-	}
-	if ch.decided {
-		return errors.New("ssh: duplicate response received for channel")
-	}
-	ch.decided = true
-	return nil
-}
-
-func (ch *channel) handlePacket(packet []byte) error {
-	switch packet[0] {
-	case msgChannelData, msgChannelExtendedData:
-		return ch.handleData(packet)
-	case msgChannelClose:
-		ch.sendMessage(channelCloseMsg{PeersID: ch.remoteId})
-		ch.mux.chanList.remove(ch.localId)
-		ch.close()
-		return nil
-	case msgChannelEOF:
-		// RFC 4254 is mute on how EOF affects dataExt messages but
-		// it is logical to signal EOF at the same time.
-		ch.extPending.eof()
-		ch.pending.eof()
-		return nil
-	}
-
-	decoded, err := decode(packet)
-	if err != nil {
-		return err
-	}
-
-	switch msg := decoded.(type) {
-	case *channelOpenFailureMsg:
-		if err := ch.responseMessageReceived(); err != nil {
-			return err
-		}
-		ch.mux.chanList.remove(msg.PeersID)
-		ch.msg <- msg
-	case *channelOpenConfirmMsg:
-		if err := ch.responseMessageReceived(); err != nil {
-			return err
-		}
-		if msg.MaxPacketSize < minPacketLength || msg.MaxPacketSize > 1<<31 {
-			return fmt.Errorf("ssh: invalid MaxPacketSize %d from peer", msg.MaxPacketSize)
-		}
-		ch.remoteId = msg.MyID
-		ch.maxRemotePayload = msg.MaxPacketSize
-		ch.remoteWin.add(msg.MyWindow)
-		ch.msg <- msg
-	case *windowAdjustMsg:
-		if !ch.remoteWin.add(msg.AdditionalBytes) {
-			return fmt.Errorf("ssh: invalid window update for %d bytes", msg.AdditionalBytes)
-		}
-	case *channelRequestMsg:
-		req := Request{
-			Type:      msg.Request,
-			WantReply: msg.WantReply,
-			Payload:   msg.RequestSpecificData,
-			ch:        ch,
-		}
-
-		ch.incomingRequests <- &req
-	default:
-		ch.msg <- msg
-	}
-	return nil
-}
-
-func (m *mux) newChannel(chanType string, direction channelDirection, extraData []byte) *channel {
-	ch := &channel{
-		remoteWin:        window{Cond: newCond()},
-		myWindow:         channelWindowSize,
-		pending:          newBuffer(),
-		extPending:       newBuffer(),
-		direction:        direction,
-		incomingRequests: make(chan *Request, chanSize),
-		msg:              make(chan interface{}, chanSize),
-		chanType:         chanType,
-		extraData:        extraData,
-		mux:              m,
-		packetPool:       make(map[uint32][]byte),
-	}
-	ch.localId = m.chanList.add(ch)
-	return ch
-}
-
-var errUndecided = errors.New("ssh: must Accept or Reject channel")
-var errDecidedAlready = errors.New("ssh: can call Accept or Reject only once")
-
-type extChannel struct {
-	code uint32
-	ch   *channel
-}
-
-func (e *extChannel) Write(data []byte) (n int, err error) {
-	return e.ch.WriteExtended(data, e.code)
-}
-
-func (e *extChannel) Read(data []byte) (n int, err error) {
-	return e.ch.ReadExtended(data, e.code)
-}
-
-func (ch *channel) Accept() (Channel, <-chan *Request, error) {
-	if ch.decided {
-		return nil, nil, errDecidedAlready
-	}
-	ch.maxIncomingPayload = channelMaxPacket
-	confirm := channelOpenConfirmMsg{
-		PeersID:       ch.remoteId,
-		MyID:          ch.localId,
-		MyWindow:      ch.myWindow,
-		MaxPacketSize: ch.maxIncomingPayload,
-	}
-	ch.decided = true
-	if err := ch.sendMessage(confirm); err != nil {
-		return nil, nil, err
-	}
-
-	return ch, ch.incomingRequests, nil
-}
-
-func (ch *channel) Reject(reason RejectionReason, message string) error {
-	if ch.decided {
-		return errDecidedAlready
-	}
-	reject := channelOpenFailureMsg{
-		PeersID:  ch.remoteId,
-		Reason:   reason,
-		Message:  message,
-		Language: "en",
-	}
-	ch.decided = true
-	return ch.sendMessage(reject)
-}
-
-func (ch *channel) Read(data []byte) (int, error) {
-	if !ch.decided {
-		return 0, errUndecided
-	}
-	return ch.ReadExtended(data, 0)
-}
-
-func (ch *channel) Write(data []byte) (int, error) {
-	if !ch.decided {
-		return 0, errUndecided
-	}
-	return ch.WriteExtended(data, 0)
-}
-
-func (ch *channel) CloseWrite() error {
-	if !ch.decided {
-		return errUndecided
-	}
-	ch.sentEOF = true
-	return ch.sendMessage(channelEOFMsg{
-		PeersID: ch.remoteId})
-}
-
-func (ch *channel) Close() error {
-	if !ch.decided {
-		return errUndecided
-	}
-
-	return ch.sendMessage(channelCloseMsg{
-		PeersID: ch.remoteId})
-}
-
-// Extended returns an io.ReadWriter that sends and receives data on the given,
-// SSH extended stream. Such streams are used, for example, for stderr.
-func (ch *channel) Extended(code uint32) io.ReadWriter {
-	if !ch.decided {
-		return nil
-	}
-	return &extChannel{code, ch}
-}
-
-func (ch *channel) Stderr() io.ReadWriter {
-	return ch.Extended(1)
-}
-
-func (ch *channel) SendRequest(name string, wantReply bool, payload []byte) (bool, error) {
-	if !ch.decided {
-		return false, errUndecided
-	}
-
-	if wantReply {
-		ch.sentRequestMu.Lock()
-		defer ch.sentRequestMu.Unlock()
-	}
-
-	msg := channelRequestMsg{
-		PeersID:             ch.remoteId,
-		Request:             name,
-		WantReply:           wantReply,
-		RequestSpecificData: payload,
-	}
-
-	if err := ch.sendMessage(msg); err != nil {
-		return false, err
-	}
-
-	if wantReply {
-		m, ok := (<-ch.msg)
-		if !ok {
-			return false, io.EOF
-		}
-		switch m.(type) {
-		case *channelRequestFailureMsg:
-			return false, nil
-		case *channelRequestSuccessMsg:
-			return true, nil
-		default:
-			return false, fmt.Errorf("ssh: unexpected response to channel request: %#v", m)
-		}
-	}
-
-	return false, nil
-}
-
-// ackRequest either sends an ack or nack to the channel request.
-func (ch *channel) ackRequest(ok bool) error {
-	if !ch.decided {
-		return errUndecided
-	}
-
-	var msg interface{}
-	if !ok {
-		msg = channelRequestFailureMsg{
-			PeersID: ch.remoteId,
-		}
-	} else {
-		msg = channelRequestSuccessMsg{
-			PeersID: ch.remoteId,
-		}
-	}
-	return ch.sendMessage(msg)
-}
-
-func (ch *channel) ChannelType() string {
-	return ch.chanType
-}
-
-func (ch *channel) ExtraData() []byte {
-	return ch.extraData
-}
diff --git a/vendor/golang.org/x/crypto/ssh/cipher.go b/vendor/golang.org/x/crypto/ssh/cipher.go
deleted file mode 100644
index 67b0126..0000000
--- a/vendor/golang.org/x/crypto/ssh/cipher.go
+++ /dev/null
@@ -1,770 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"crypto/aes"
-	"crypto/cipher"
-	"crypto/des"
-	"crypto/rc4"
-	"crypto/subtle"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"hash"
-	"io"
-	"io/ioutil"
-	"math/bits"
-
-	"golang.org/x/crypto/internal/chacha20"
-	"golang.org/x/crypto/poly1305"
-)
-
-const (
-	packetSizeMultiple = 16 // TODO(huin) this should be determined by the cipher.
-
-	// RFC 4253 section 6.1 defines a minimum packet size of 32768 that implementations
-	// MUST be able to process (plus a few more kilobytes for padding and mac). The RFC
-	// indicates implementations SHOULD be able to handle larger packet sizes, but then
-	// waffles on about reasonable limits.
-	//
-	// OpenSSH caps their maxPacket at 256kB so we choose to do
-	// the same. maxPacket is also used to ensure that uint32
-	// length fields do not overflow, so it should remain well
-	// below 4G.
-	maxPacket = 256 * 1024
-)
-
-// noneCipher implements cipher.Stream and provides no encryption. It is used
-// by the transport before the first key-exchange.
-type noneCipher struct{}
-
-func (c noneCipher) XORKeyStream(dst, src []byte) {
-	copy(dst, src)
-}
-
-func newAESCTR(key, iv []byte) (cipher.Stream, error) {
-	c, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-	return cipher.NewCTR(c, iv), nil
-}
-
-func newRC4(key, iv []byte) (cipher.Stream, error) {
-	return rc4.NewCipher(key)
-}
-
-type cipherMode struct {
-	keySize int
-	ivSize  int
-	create  func(key, iv []byte, macKey []byte, algs directionAlgorithms) (packetCipher, error)
-}
-
-func streamCipherMode(skip int, createFunc func(key, iv []byte) (cipher.Stream, error)) func(key, iv []byte, macKey []byte, algs directionAlgorithms) (packetCipher, error) {
-	return func(key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) {
-		stream, err := createFunc(key, iv)
-		if err != nil {
-			return nil, err
-		}
-
-		var streamDump []byte
-		if skip > 0 {
-			streamDump = make([]byte, 512)
-		}
-
-		for remainingToDump := skip; remainingToDump > 0; {
-			dumpThisTime := remainingToDump
-			if dumpThisTime > len(streamDump) {
-				dumpThisTime = len(streamDump)
-			}
-			stream.XORKeyStream(streamDump[:dumpThisTime], streamDump[:dumpThisTime])
-			remainingToDump -= dumpThisTime
-		}
-
-		mac := macModes[algs.MAC].new(macKey)
-		return &streamPacketCipher{
-			mac:       mac,
-			etm:       macModes[algs.MAC].etm,
-			macResult: make([]byte, mac.Size()),
-			cipher:    stream,
-		}, nil
-	}
-}
-
-// cipherModes documents properties of supported ciphers. Ciphers not included
-// are not supported and will not be negotiated, even if explicitly requested in
-// ClientConfig.Crypto.Ciphers.
-var cipherModes = map[string]*cipherMode{
-	// Ciphers from RFC4344, which introduced many CTR-based ciphers. Algorithms
-	// are defined in the order specified in the RFC.
-	"aes128-ctr": {16, aes.BlockSize, streamCipherMode(0, newAESCTR)},
-	"aes192-ctr": {24, aes.BlockSize, streamCipherMode(0, newAESCTR)},
-	"aes256-ctr": {32, aes.BlockSize, streamCipherMode(0, newAESCTR)},
-
-	// Ciphers from RFC4345, which introduces security-improved arcfour ciphers.
-	// They are defined in the order specified in the RFC.
-	"arcfour128": {16, 0, streamCipherMode(1536, newRC4)},
-	"arcfour256": {32, 0, streamCipherMode(1536, newRC4)},
-
-	// Cipher defined in RFC 4253, which describes SSH Transport Layer Protocol.
-	// Note that this cipher is not safe, as stated in RFC 4253: "Arcfour (and
-	// RC4) has problems with weak keys, and should be used with caution."
-	// RFC4345 introduces improved versions of Arcfour.
-	"arcfour": {16, 0, streamCipherMode(0, newRC4)},
-
-	// AEAD ciphers
-	gcmCipherID:        {16, 12, newGCMCipher},
-	chacha20Poly1305ID: {64, 0, newChaCha20Cipher},
-
-	// CBC mode is insecure and so is not included in the default config.
-	// (See http://www.isg.rhul.ac.uk/~kp/SandPfinal.pdf). If absolutely
-	// needed, it's possible to specify a custom Config to enable it.
-	// You should expect that an active attacker can recover plaintext if
-	// you do.
-	aes128cbcID: {16, aes.BlockSize, newAESCBCCipher},
-
-	// 3des-cbc is insecure and is not included in the default
-	// config.
-	tripledescbcID: {24, des.BlockSize, newTripleDESCBCCipher},
-}
-
-// prefixLen is the length of the packet prefix that contains the packet length
-// and number of padding bytes.
-const prefixLen = 5
-
-// streamPacketCipher is a packetCipher using a stream cipher.
-type streamPacketCipher struct {
-	mac    hash.Hash
-	cipher cipher.Stream
-	etm    bool
-
-	// The following members are to avoid per-packet allocations.
-	prefix      [prefixLen]byte
-	seqNumBytes [4]byte
-	padding     [2 * packetSizeMultiple]byte
-	packetData  []byte
-	macResult   []byte
-}
-
-// readPacket reads and decrypt a single packet from the reader argument.
-func (s *streamPacketCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
-	if _, err := io.ReadFull(r, s.prefix[:]); err != nil {
-		return nil, err
-	}
-
-	var encryptedPaddingLength [1]byte
-	if s.mac != nil && s.etm {
-		copy(encryptedPaddingLength[:], s.prefix[4:5])
-		s.cipher.XORKeyStream(s.prefix[4:5], s.prefix[4:5])
-	} else {
-		s.cipher.XORKeyStream(s.prefix[:], s.prefix[:])
-	}
-
-	length := binary.BigEndian.Uint32(s.prefix[0:4])
-	paddingLength := uint32(s.prefix[4])
-
-	var macSize uint32
-	if s.mac != nil {
-		s.mac.Reset()
-		binary.BigEndian.PutUint32(s.seqNumBytes[:], seqNum)
-		s.mac.Write(s.seqNumBytes[:])
-		if s.etm {
-			s.mac.Write(s.prefix[:4])
-			s.mac.Write(encryptedPaddingLength[:])
-		} else {
-			s.mac.Write(s.prefix[:])
-		}
-		macSize = uint32(s.mac.Size())
-	}
-
-	if length <= paddingLength+1 {
-		return nil, errors.New("ssh: invalid packet length, packet too small")
-	}
-
-	if length > maxPacket {
-		return nil, errors.New("ssh: invalid packet length, packet too large")
-	}
-
-	// the maxPacket check above ensures that length-1+macSize
-	// does not overflow.
-	if uint32(cap(s.packetData)) < length-1+macSize {
-		s.packetData = make([]byte, length-1+macSize)
-	} else {
-		s.packetData = s.packetData[:length-1+macSize]
-	}
-
-	if _, err := io.ReadFull(r, s.packetData); err != nil {
-		return nil, err
-	}
-	mac := s.packetData[length-1:]
-	data := s.packetData[:length-1]
-
-	if s.mac != nil && s.etm {
-		s.mac.Write(data)
-	}
-
-	s.cipher.XORKeyStream(data, data)
-
-	if s.mac != nil {
-		if !s.etm {
-			s.mac.Write(data)
-		}
-		s.macResult = s.mac.Sum(s.macResult[:0])
-		if subtle.ConstantTimeCompare(s.macResult, mac) != 1 {
-			return nil, errors.New("ssh: MAC failure")
-		}
-	}
-
-	return s.packetData[:length-paddingLength-1], nil
-}
-
-// writePacket encrypts and sends a packet of data to the writer argument
-func (s *streamPacketCipher) writePacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error {
-	if len(packet) > maxPacket {
-		return errors.New("ssh: packet too large")
-	}
-
-	aadlen := 0
-	if s.mac != nil && s.etm {
-		// packet length is not encrypted for EtM modes
-		aadlen = 4
-	}
-
-	paddingLength := packetSizeMultiple - (prefixLen+len(packet)-aadlen)%packetSizeMultiple
-	if paddingLength < 4 {
-		paddingLength += packetSizeMultiple
-	}
-
-	length := len(packet) + 1 + paddingLength
-	binary.BigEndian.PutUint32(s.prefix[:], uint32(length))
-	s.prefix[4] = byte(paddingLength)
-	padding := s.padding[:paddingLength]
-	if _, err := io.ReadFull(rand, padding); err != nil {
-		return err
-	}
-
-	if s.mac != nil {
-		s.mac.Reset()
-		binary.BigEndian.PutUint32(s.seqNumBytes[:], seqNum)
-		s.mac.Write(s.seqNumBytes[:])
-
-		if s.etm {
-			// For EtM algorithms, the packet length must stay unencrypted,
-			// but the following data (padding length) must be encrypted
-			s.cipher.XORKeyStream(s.prefix[4:5], s.prefix[4:5])
-		}
-
-		s.mac.Write(s.prefix[:])
-
-		if !s.etm {
-			// For non-EtM algorithms, the algorithm is applied on unencrypted data
-			s.mac.Write(packet)
-			s.mac.Write(padding)
-		}
-	}
-
-	if !(s.mac != nil && s.etm) {
-		// For EtM algorithms, the padding length has already been encrypted
-		// and the packet length must remain unencrypted
-		s.cipher.XORKeyStream(s.prefix[:], s.prefix[:])
-	}
-
-	s.cipher.XORKeyStream(packet, packet)
-	s.cipher.XORKeyStream(padding, padding)
-
-	if s.mac != nil && s.etm {
-		// For EtM algorithms, packet and padding must be encrypted
-		s.mac.Write(packet)
-		s.mac.Write(padding)
-	}
-
-	if _, err := w.Write(s.prefix[:]); err != nil {
-		return err
-	}
-	if _, err := w.Write(packet); err != nil {
-		return err
-	}
-	if _, err := w.Write(padding); err != nil {
-		return err
-	}
-
-	if s.mac != nil {
-		s.macResult = s.mac.Sum(s.macResult[:0])
-		if _, err := w.Write(s.macResult); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-type gcmCipher struct {
-	aead   cipher.AEAD
-	prefix [4]byte
-	iv     []byte
-	buf    []byte
-}
-
-func newGCMCipher(key, iv, unusedMacKey []byte, unusedAlgs directionAlgorithms) (packetCipher, error) {
-	c, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	aead, err := cipher.NewGCM(c)
-	if err != nil {
-		return nil, err
-	}
-
-	return &gcmCipher{
-		aead: aead,
-		iv:   iv,
-	}, nil
-}
-
-const gcmTagSize = 16
-
-func (c *gcmCipher) writePacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error {
-	// Pad out to multiple of 16 bytes. This is different from the
-	// stream cipher because that encrypts the length too.
-	padding := byte(packetSizeMultiple - (1+len(packet))%packetSizeMultiple)
-	if padding < 4 {
-		padding += packetSizeMultiple
-	}
-
-	length := uint32(len(packet) + int(padding) + 1)
-	binary.BigEndian.PutUint32(c.prefix[:], length)
-	if _, err := w.Write(c.prefix[:]); err != nil {
-		return err
-	}
-
-	if cap(c.buf) < int(length) {
-		c.buf = make([]byte, length)
-	} else {
-		c.buf = c.buf[:length]
-	}
-
-	c.buf[0] = padding
-	copy(c.buf[1:], packet)
-	if _, err := io.ReadFull(rand, c.buf[1+len(packet):]); err != nil {
-		return err
-	}
-	c.buf = c.aead.Seal(c.buf[:0], c.iv, c.buf, c.prefix[:])
-	if _, err := w.Write(c.buf); err != nil {
-		return err
-	}
-	c.incIV()
-
-	return nil
-}
-
-func (c *gcmCipher) incIV() {
-	for i := 4 + 7; i >= 4; i-- {
-		c.iv[i]++
-		if c.iv[i] != 0 {
-			break
-		}
-	}
-}
-
-func (c *gcmCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
-	if _, err := io.ReadFull(r, c.prefix[:]); err != nil {
-		return nil, err
-	}
-	length := binary.BigEndian.Uint32(c.prefix[:])
-	if length > maxPacket {
-		return nil, errors.New("ssh: max packet length exceeded")
-	}
-
-	if cap(c.buf) < int(length+gcmTagSize) {
-		c.buf = make([]byte, length+gcmTagSize)
-	} else {
-		c.buf = c.buf[:length+gcmTagSize]
-	}
-
-	if _, err := io.ReadFull(r, c.buf); err != nil {
-		return nil, err
-	}
-
-	plain, err := c.aead.Open(c.buf[:0], c.iv, c.buf, c.prefix[:])
-	if err != nil {
-		return nil, err
-	}
-	c.incIV()
-
-	padding := plain[0]
-	if padding < 4 {
-		// padding is a byte, so it automatically satisfies
-		// the maximum size, which is 255.
-		return nil, fmt.Errorf("ssh: illegal padding %d", padding)
-	}
-
-	if int(padding+1) >= len(plain) {
-		return nil, fmt.Errorf("ssh: padding %d too large", padding)
-	}
-	plain = plain[1 : length-uint32(padding)]
-	return plain, nil
-}
-
-// cbcCipher implements aes128-cbc cipher defined in RFC 4253 section 6.1
-type cbcCipher struct {
-	mac       hash.Hash
-	macSize   uint32
-	decrypter cipher.BlockMode
-	encrypter cipher.BlockMode
-
-	// The following members are to avoid per-packet allocations.
-	seqNumBytes [4]byte
-	packetData  []byte
-	macResult   []byte
-
-	// Amount of data we should still read to hide which
-	// verification error triggered.
-	oracleCamouflage uint32
-}
-
-func newCBCCipher(c cipher.Block, key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) {
-	cbc := &cbcCipher{
-		mac:        macModes[algs.MAC].new(macKey),
-		decrypter:  cipher.NewCBCDecrypter(c, iv),
-		encrypter:  cipher.NewCBCEncrypter(c, iv),
-		packetData: make([]byte, 1024),
-	}
-	if cbc.mac != nil {
-		cbc.macSize = uint32(cbc.mac.Size())
-	}
-
-	return cbc, nil
-}
-
-func newAESCBCCipher(key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) {
-	c, err := aes.NewCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	cbc, err := newCBCCipher(c, key, iv, macKey, algs)
-	if err != nil {
-		return nil, err
-	}
-
-	return cbc, nil
-}
-
-func newTripleDESCBCCipher(key, iv, macKey []byte, algs directionAlgorithms) (packetCipher, error) {
-	c, err := des.NewTripleDESCipher(key)
-	if err != nil {
-		return nil, err
-	}
-
-	cbc, err := newCBCCipher(c, key, iv, macKey, algs)
-	if err != nil {
-		return nil, err
-	}
-
-	return cbc, nil
-}
-
-func maxUInt32(a, b int) uint32 {
-	if a > b {
-		return uint32(a)
-	}
-	return uint32(b)
-}
-
-const (
-	cbcMinPacketSizeMultiple = 8
-	cbcMinPacketSize         = 16
-	cbcMinPaddingSize        = 4
-)
-
-// cbcError represents a verification error that may leak information.
-type cbcError string
-
-func (e cbcError) Error() string { return string(e) }
-
-func (c *cbcCipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
-	p, err := c.readPacketLeaky(seqNum, r)
-	if err != nil {
-		if _, ok := err.(cbcError); ok {
-			// Verification error: read a fixed amount of
-			// data, to make distinguishing between
-			// failing MAC and failing length check more
-			// difficult.
-			io.CopyN(ioutil.Discard, r, int64(c.oracleCamouflage))
-		}
-	}
-	return p, err
-}
-
-func (c *cbcCipher) readPacketLeaky(seqNum uint32, r io.Reader) ([]byte, error) {
-	blockSize := c.decrypter.BlockSize()
-
-	// Read the header, which will include some of the subsequent data in the
-	// case of block ciphers - this is copied back to the payload later.
-	// How many bytes of payload/padding will be read with this first read.
-	firstBlockLength := uint32((prefixLen + blockSize - 1) / blockSize * blockSize)
-	firstBlock := c.packetData[:firstBlockLength]
-	if _, err := io.ReadFull(r, firstBlock); err != nil {
-		return nil, err
-	}
-
-	c.oracleCamouflage = maxPacket + 4 + c.macSize - firstBlockLength
-
-	c.decrypter.CryptBlocks(firstBlock, firstBlock)
-	length := binary.BigEndian.Uint32(firstBlock[:4])
-	if length > maxPacket {
-		return nil, cbcError("ssh: packet too large")
-	}
-	if length+4 < maxUInt32(cbcMinPacketSize, blockSize) {
-		// The minimum size of a packet is 16 (or the cipher block size, whichever
-		// is larger) bytes.
-		return nil, cbcError("ssh: packet too small")
-	}
-	// The length of the packet (including the length field but not the MAC) must
-	// be a multiple of the block size or 8, whichever is larger.
-	if (length+4)%maxUInt32(cbcMinPacketSizeMultiple, blockSize) != 0 {
-		return nil, cbcError("ssh: invalid packet length multiple")
-	}
-
-	paddingLength := uint32(firstBlock[4])
-	if paddingLength < cbcMinPaddingSize || length <= paddingLength+1 {
-		return nil, cbcError("ssh: invalid packet length")
-	}
-
-	// Positions within the c.packetData buffer:
-	macStart := 4 + length
-	paddingStart := macStart - paddingLength
-
-	// Entire packet size, starting before length, ending at end of mac.
-	entirePacketSize := macStart + c.macSize
-
-	// Ensure c.packetData is large enough for the entire packet data.
-	if uint32(cap(c.packetData)) < entirePacketSize {
-		// Still need to upsize and copy, but this should be rare at runtime, only
-		// on upsizing the packetData buffer.
-		c.packetData = make([]byte, entirePacketSize)
-		copy(c.packetData, firstBlock)
-	} else {
-		c.packetData = c.packetData[:entirePacketSize]
-	}
-
-	n, err := io.ReadFull(r, c.packetData[firstBlockLength:])
-	if err != nil {
-		return nil, err
-	}
-	c.oracleCamouflage -= uint32(n)
-
-	remainingCrypted := c.packetData[firstBlockLength:macStart]
-	c.decrypter.CryptBlocks(remainingCrypted, remainingCrypted)
-
-	mac := c.packetData[macStart:]
-	if c.mac != nil {
-		c.mac.Reset()
-		binary.BigEndian.PutUint32(c.seqNumBytes[:], seqNum)
-		c.mac.Write(c.seqNumBytes[:])
-		c.mac.Write(c.packetData[:macStart])
-		c.macResult = c.mac.Sum(c.macResult[:0])
-		if subtle.ConstantTimeCompare(c.macResult, mac) != 1 {
-			return nil, cbcError("ssh: MAC failure")
-		}
-	}
-
-	return c.packetData[prefixLen:paddingStart], nil
-}
-
-func (c *cbcCipher) writePacket(seqNum uint32, w io.Writer, rand io.Reader, packet []byte) error {
-	effectiveBlockSize := maxUInt32(cbcMinPacketSizeMultiple, c.encrypter.BlockSize())
-
-	// Length of encrypted portion of the packet (header, payload, padding).
-	// Enforce minimum padding and packet size.
-	encLength := maxUInt32(prefixLen+len(packet)+cbcMinPaddingSize, cbcMinPaddingSize)
-	// Enforce block size.
-	encLength = (encLength + effectiveBlockSize - 1) / effectiveBlockSize * effectiveBlockSize
-
-	length := encLength - 4
-	paddingLength := int(length) - (1 + len(packet))
-
-	// Overall buffer contains: header, payload, padding, mac.
-	// Space for the MAC is reserved in the capacity but not the slice length.
-	bufferSize := encLength + c.macSize
-	if uint32(cap(c.packetData)) < bufferSize {
-		c.packetData = make([]byte, encLength, bufferSize)
-	} else {
-		c.packetData = c.packetData[:encLength]
-	}
-
-	p := c.packetData
-
-	// Packet header.
-	binary.BigEndian.PutUint32(p, length)
-	p = p[4:]
-	p[0] = byte(paddingLength)
-
-	// Payload.
-	p = p[1:]
-	copy(p, packet)
-
-	// Padding.
-	p = p[len(packet):]
-	if _, err := io.ReadFull(rand, p); err != nil {
-		return err
-	}
-
-	if c.mac != nil {
-		c.mac.Reset()
-		binary.BigEndian.PutUint32(c.seqNumBytes[:], seqNum)
-		c.mac.Write(c.seqNumBytes[:])
-		c.mac.Write(c.packetData)
-		// The MAC is now appended into the capacity reserved for it earlier.
-		c.packetData = c.mac.Sum(c.packetData)
-	}
-
-	c.encrypter.CryptBlocks(c.packetData[:encLength], c.packetData[:encLength])
-
-	if _, err := w.Write(c.packetData); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-const chacha20Poly1305ID = "chacha20-poly1305@openssh.com"
-
-// chacha20Poly1305Cipher implements the chacha20-poly1305@openssh.com
-// AEAD, which is described here:
-//
-//   https://tools.ietf.org/html/draft-josefsson-ssh-chacha20-poly1305-openssh-00
-//
-// the methods here also implement padding, which RFC4253 Section 6
-// also requires of stream ciphers.
-type chacha20Poly1305Cipher struct {
-	lengthKey  [8]uint32
-	contentKey [8]uint32
-	buf        []byte
-}
-
-func newChaCha20Cipher(key, unusedIV, unusedMACKey []byte, unusedAlgs directionAlgorithms) (packetCipher, error) {
-	if len(key) != 64 {
-		panic(len(key))
-	}
-
-	c := &chacha20Poly1305Cipher{
-		buf: make([]byte, 256),
-	}
-
-	for i := range c.contentKey {
-		c.contentKey[i] = binary.LittleEndian.Uint32(key[i*4 : (i+1)*4])
-	}
-	for i := range c.lengthKey {
-		c.lengthKey[i] = binary.LittleEndian.Uint32(key[(i+8)*4 : (i+9)*4])
-	}
-	return c, nil
-}
-
-func (c *chacha20Poly1305Cipher) readPacket(seqNum uint32, r io.Reader) ([]byte, error) {
-	nonce := [3]uint32{0, 0, bits.ReverseBytes32(seqNum)}
-	s := chacha20.New(c.contentKey, nonce)
-	var polyKey [32]byte
-	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip next 32 bytes
-
-	encryptedLength := c.buf[:4]
-	if _, err := io.ReadFull(r, encryptedLength); err != nil {
-		return nil, err
-	}
-
-	var lenBytes [4]byte
-	chacha20.New(c.lengthKey, nonce).XORKeyStream(lenBytes[:], encryptedLength)
-
-	length := binary.BigEndian.Uint32(lenBytes[:])
-	if length > maxPacket {
-		return nil, errors.New("ssh: invalid packet length, packet too large")
-	}
-
-	contentEnd := 4 + length
-	packetEnd := contentEnd + poly1305.TagSize
-	if uint32(cap(c.buf)) < packetEnd {
-		c.buf = make([]byte, packetEnd)
-		copy(c.buf[:], encryptedLength)
-	} else {
-		c.buf = c.buf[:packetEnd]
-	}
-
-	if _, err := io.ReadFull(r, c.buf[4:packetEnd]); err != nil {
-		return nil, err
-	}
-
-	var mac [poly1305.TagSize]byte
-	copy(mac[:], c.buf[contentEnd:packetEnd])
-	if !poly1305.Verify(&mac, c.buf[:contentEnd], &polyKey) {
-		return nil, errors.New("ssh: MAC failure")
-	}
-
-	plain := c.buf[4:contentEnd]
-	s.XORKeyStream(plain, plain)
-
-	padding := plain[0]
-	if padding < 4 {
-		// padding is a byte, so it automatically satisfies
-		// the maximum size, which is 255.
-		return nil, fmt.Errorf("ssh: illegal padding %d", padding)
-	}
-
-	if int(padding)+1 >= len(plain) {
-		return nil, fmt.Errorf("ssh: padding %d too large", padding)
-	}
-
-	plain = plain[1 : len(plain)-int(padding)]
-
-	return plain, nil
-}
-
-func (c *chacha20Poly1305Cipher) writePacket(seqNum uint32, w io.Writer, rand io.Reader, payload []byte) error {
-	nonce := [3]uint32{0, 0, bits.ReverseBytes32(seqNum)}
-	s := chacha20.New(c.contentKey, nonce)
-	var polyKey [32]byte
-	s.XORKeyStream(polyKey[:], polyKey[:])
-	s.Advance() // skip next 32 bytes
-
-	// There is no blocksize, so fall back to multiple of 8 byte
-	// padding, as described in RFC 4253, Sec 6.
-	const packetSizeMultiple = 8
-
-	padding := packetSizeMultiple - (1+len(payload))%packetSizeMultiple
-	if padding < 4 {
-		padding += packetSizeMultiple
-	}
-
-	// size (4 bytes), padding (1), payload, padding, tag.
-	totalLength := 4 + 1 + len(payload) + padding + poly1305.TagSize
-	if cap(c.buf) < totalLength {
-		c.buf = make([]byte, totalLength)
-	} else {
-		c.buf = c.buf[:totalLength]
-	}
-
-	binary.BigEndian.PutUint32(c.buf, uint32(1+len(payload)+padding))
-	chacha20.New(c.lengthKey, nonce).XORKeyStream(c.buf, c.buf[:4])
-	c.buf[4] = byte(padding)
-	copy(c.buf[5:], payload)
-	packetEnd := 5 + len(payload) + padding
-	if _, err := io.ReadFull(rand, c.buf[5+len(payload):packetEnd]); err != nil {
-		return err
-	}
-
-	s.XORKeyStream(c.buf[4:], c.buf[4:packetEnd])
-
-	var mac [poly1305.TagSize]byte
-	poly1305.Sum(&mac, c.buf[:packetEnd], &polyKey)
-
-	copy(c.buf[packetEnd:], mac[:])
-
-	if _, err := w.Write(c.buf); err != nil {
-		return err
-	}
-	return nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/cipher_test.go b/vendor/golang.org/x/crypto/ssh/cipher_test.go
deleted file mode 100644
index a52d6e4..0000000
--- a/vendor/golang.org/x/crypto/ssh/cipher_test.go
+++ /dev/null
@@ -1,131 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/rand"
-	"testing"
-)
-
-func TestDefaultCiphersExist(t *testing.T) {
-	for _, cipherAlgo := range supportedCiphers {
-		if _, ok := cipherModes[cipherAlgo]; !ok {
-			t.Errorf("supported cipher %q is unknown", cipherAlgo)
-		}
-	}
-	for _, cipherAlgo := range preferredCiphers {
-		if _, ok := cipherModes[cipherAlgo]; !ok {
-			t.Errorf("preferred cipher %q is unknown", cipherAlgo)
-		}
-	}
-}
-
-func TestPacketCiphers(t *testing.T) {
-	defaultMac := "hmac-sha2-256"
-	defaultCipher := "aes128-ctr"
-	for cipher := range cipherModes {
-		t.Run("cipher="+cipher,
-			func(t *testing.T) { testPacketCipher(t, cipher, defaultMac) })
-	}
-	for mac := range macModes {
-		t.Run("mac="+mac,
-			func(t *testing.T) { testPacketCipher(t, defaultCipher, mac) })
-	}
-}
-
-func testPacketCipher(t *testing.T, cipher, mac string) {
-	kr := &kexResult{Hash: crypto.SHA1}
-	algs := directionAlgorithms{
-		Cipher:      cipher,
-		MAC:         mac,
-		Compression: "none",
-	}
-	client, err := newPacketCipher(clientKeys, algs, kr)
-	if err != nil {
-		t.Fatalf("newPacketCipher(client, %q, %q): %v", cipher, mac, err)
-	}
-	server, err := newPacketCipher(clientKeys, algs, kr)
-	if err != nil {
-		t.Fatalf("newPacketCipher(client, %q, %q): %v", cipher, mac, err)
-	}
-
-	want := "bla bla"
-	input := []byte(want)
-	buf := &bytes.Buffer{}
-	if err := client.writePacket(0, buf, rand.Reader, input); err != nil {
-		t.Fatalf("writePacket(%q, %q): %v", cipher, mac, err)
-	}
-
-	packet, err := server.readPacket(0, buf)
-	if err != nil {
-		t.Fatalf("readPacket(%q, %q): %v", cipher, mac, err)
-	}
-
-	if string(packet) != want {
-		t.Errorf("roundtrip(%q, %q): got %q, want %q", cipher, mac, packet, want)
-	}
-}
-
-func TestCBCOracleCounterMeasure(t *testing.T) {
-	kr := &kexResult{Hash: crypto.SHA1}
-	algs := directionAlgorithms{
-		Cipher:      aes128cbcID,
-		MAC:         "hmac-sha1",
-		Compression: "none",
-	}
-	client, err := newPacketCipher(clientKeys, algs, kr)
-	if err != nil {
-		t.Fatalf("newPacketCipher(client): %v", err)
-	}
-
-	want := "bla bla"
-	input := []byte(want)
-	buf := &bytes.Buffer{}
-	if err := client.writePacket(0, buf, rand.Reader, input); err != nil {
-		t.Errorf("writePacket: %v", err)
-	}
-
-	packetSize := buf.Len()
-	buf.Write(make([]byte, 2*maxPacket))
-
-	// We corrupt each byte, but this usually will only test the
-	// 'packet too large' or 'MAC failure' cases.
-	lastRead := -1
-	for i := 0; i < packetSize; i++ {
-		server, err := newPacketCipher(clientKeys, algs, kr)
-		if err != nil {
-			t.Fatalf("newPacketCipher(client): %v", err)
-		}
-
-		fresh := &bytes.Buffer{}
-		fresh.Write(buf.Bytes())
-		fresh.Bytes()[i] ^= 0x01
-
-		before := fresh.Len()
-		_, err = server.readPacket(0, fresh)
-		if err == nil {
-			t.Errorf("corrupt byte %d: readPacket succeeded ", i)
-			continue
-		}
-		if _, ok := err.(cbcError); !ok {
-			t.Errorf("corrupt byte %d: got %v (%T), want cbcError", i, err, err)
-			continue
-		}
-
-		after := fresh.Len()
-		bytesRead := before - after
-		if bytesRead < maxPacket {
-			t.Errorf("corrupt byte %d: read %d bytes, want more than %d", i, bytesRead, maxPacket)
-			continue
-		}
-
-		if i > 0 && bytesRead != lastRead {
-			t.Errorf("corrupt byte %d: read %d bytes, want %d bytes read", i, bytesRead, lastRead)
-		}
-		lastRead = bytesRead
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/client.go b/vendor/golang.org/x/crypto/ssh/client.go
deleted file mode 100644
index ae6ca77..0000000
--- a/vendor/golang.org/x/crypto/ssh/client.go
+++ /dev/null
@@ -1,278 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"net"
-	"os"
-	"sync"
-	"time"
-)
-
-// Client implements a traditional SSH client that supports shells,
-// subprocesses, TCP port/streamlocal forwarding and tunneled dialing.
-type Client struct {
-	Conn
-
-	handleForwardsOnce sync.Once // guards calling (*Client).handleForwards
-
-	forwards        forwardList // forwarded tcpip connections from the remote side
-	mu              sync.Mutex
-	channelHandlers map[string]chan NewChannel
-}
-
-// HandleChannelOpen returns a channel on which NewChannel requests
-// for the given type are sent. If the type already is being handled,
-// nil is returned. The channel is closed when the connection is closed.
-func (c *Client) HandleChannelOpen(channelType string) <-chan NewChannel {
-	c.mu.Lock()
-	defer c.mu.Unlock()
-	if c.channelHandlers == nil {
-		// The SSH channel has been closed.
-		c := make(chan NewChannel)
-		close(c)
-		return c
-	}
-
-	ch := c.channelHandlers[channelType]
-	if ch != nil {
-		return nil
-	}
-
-	ch = make(chan NewChannel, chanSize)
-	c.channelHandlers[channelType] = ch
-	return ch
-}
-
-// NewClient creates a Client on top of the given connection.
-func NewClient(c Conn, chans <-chan NewChannel, reqs <-chan *Request) *Client {
-	conn := &Client{
-		Conn:            c,
-		channelHandlers: make(map[string]chan NewChannel, 1),
-	}
-
-	go conn.handleGlobalRequests(reqs)
-	go conn.handleChannelOpens(chans)
-	go func() {
-		conn.Wait()
-		conn.forwards.closeAll()
-	}()
-	return conn
-}
-
-// NewClientConn establishes an authenticated SSH connection using c
-// as the underlying transport.  The Request and NewChannel channels
-// must be serviced or the connection will hang.
-func NewClientConn(c net.Conn, addr string, config *ClientConfig) (Conn, <-chan NewChannel, <-chan *Request, error) {
-	fullConf := *config
-	fullConf.SetDefaults()
-	if fullConf.HostKeyCallback == nil {
-		c.Close()
-		return nil, nil, nil, errors.New("ssh: must specify HostKeyCallback")
-	}
-
-	conn := &connection{
-		sshConn: sshConn{conn: c},
-	}
-
-	if err := conn.clientHandshake(addr, &fullConf); err != nil {
-		c.Close()
-		return nil, nil, nil, fmt.Errorf("ssh: handshake failed: %v", err)
-	}
-	conn.mux = newMux(conn.transport)
-	return conn, conn.mux.incomingChannels, conn.mux.incomingRequests, nil
-}
-
-// clientHandshake performs the client side key exchange. See RFC 4253 Section
-// 7.
-func (c *connection) clientHandshake(dialAddress string, config *ClientConfig) error {
-	if config.ClientVersion != "" {
-		c.clientVersion = []byte(config.ClientVersion)
-	} else {
-		c.clientVersion = []byte(packageVersion)
-	}
-	var err error
-	c.serverVersion, err = exchangeVersions(c.sshConn.conn, c.clientVersion)
-	if err != nil {
-		return err
-	}
-
-	c.transport = newClientTransport(
-		newTransport(c.sshConn.conn, config.Rand, true /* is client */),
-		c.clientVersion, c.serverVersion, config, dialAddress, c.sshConn.RemoteAddr())
-	if err := c.transport.waitSession(); err != nil {
-		return err
-	}
-
-	c.sessionID = c.transport.getSessionID()
-	return c.clientAuthenticate(config)
-}
-
-// verifyHostKeySignature verifies the host key obtained in the key
-// exchange.
-func verifyHostKeySignature(hostKey PublicKey, result *kexResult) error {
-	sig, rest, ok := parseSignatureBody(result.Signature)
-	if len(rest) > 0 || !ok {
-		return errors.New("ssh: signature parse error")
-	}
-
-	return hostKey.Verify(result.H, sig)
-}
-
-// NewSession opens a new Session for this client. (A session is a remote
-// execution of a program.)
-func (c *Client) NewSession() (*Session, error) {
-	ch, in, err := c.OpenChannel("session", nil)
-	if err != nil {
-		return nil, err
-	}
-	return newSession(ch, in)
-}
-
-func (c *Client) handleGlobalRequests(incoming <-chan *Request) {
-	for r := range incoming {
-		// This handles keepalive messages and matches
-		// the behaviour of OpenSSH.
-		r.Reply(false, nil)
-	}
-}
-
-// handleChannelOpens channel open messages from the remote side.
-func (c *Client) handleChannelOpens(in <-chan NewChannel) {
-	for ch := range in {
-		c.mu.Lock()
-		handler := c.channelHandlers[ch.ChannelType()]
-		c.mu.Unlock()
-
-		if handler != nil {
-			handler <- ch
-		} else {
-			ch.Reject(UnknownChannelType, fmt.Sprintf("unknown channel type: %v", ch.ChannelType()))
-		}
-	}
-
-	c.mu.Lock()
-	for _, ch := range c.channelHandlers {
-		close(ch)
-	}
-	c.channelHandlers = nil
-	c.mu.Unlock()
-}
-
-// Dial starts a client connection to the given SSH server. It is a
-// convenience function that connects to the given network address,
-// initiates the SSH handshake, and then sets up a Client.  For access
-// to incoming channels and requests, use net.Dial with NewClientConn
-// instead.
-func Dial(network, addr string, config *ClientConfig) (*Client, error) {
-	conn, err := net.DialTimeout(network, addr, config.Timeout)
-	if err != nil {
-		return nil, err
-	}
-	c, chans, reqs, err := NewClientConn(conn, addr, config)
-	if err != nil {
-		return nil, err
-	}
-	return NewClient(c, chans, reqs), nil
-}
-
-// HostKeyCallback is the function type used for verifying server
-// keys.  A HostKeyCallback must return nil if the host key is OK, or
-// an error to reject it. It receives the hostname as passed to Dial
-// or NewClientConn. The remote address is the RemoteAddr of the
-// net.Conn underlying the the SSH connection.
-type HostKeyCallback func(hostname string, remote net.Addr, key PublicKey) error
-
-// BannerCallback is the function type used for treat the banner sent by
-// the server. A BannerCallback receives the message sent by the remote server.
-type BannerCallback func(message string) error
-
-// A ClientConfig structure is used to configure a Client. It must not be
-// modified after having been passed to an SSH function.
-type ClientConfig struct {
-	// Config contains configuration that is shared between clients and
-	// servers.
-	Config
-
-	// User contains the username to authenticate as.
-	User string
-
-	// Auth contains possible authentication methods to use with the
-	// server. Only the first instance of a particular RFC 4252 method will
-	// be used during authentication.
-	Auth []AuthMethod
-
-	// HostKeyCallback is called during the cryptographic
-	// handshake to validate the server's host key. The client
-	// configuration must supply this callback for the connection
-	// to succeed. The functions InsecureIgnoreHostKey or
-	// FixedHostKey can be used for simplistic host key checks.
-	HostKeyCallback HostKeyCallback
-
-	// BannerCallback is called during the SSH dance to display a custom
-	// server's message. The client configuration can supply this callback to
-	// handle it as wished. The function BannerDisplayStderr can be used for
-	// simplistic display on Stderr.
-	BannerCallback BannerCallback
-
-	// ClientVersion contains the version identification string that will
-	// be used for the connection. If empty, a reasonable default is used.
-	ClientVersion string
-
-	// HostKeyAlgorithms lists the key types that the client will
-	// accept from the server as host key, in order of
-	// preference. If empty, a reasonable default is used. Any
-	// string returned from PublicKey.Type method may be used, or
-	// any of the CertAlgoXxxx and KeyAlgoXxxx constants.
-	HostKeyAlgorithms []string
-
-	// Timeout is the maximum amount of time for the TCP connection to establish.
-	//
-	// A Timeout of zero means no timeout.
-	Timeout time.Duration
-}
-
-// InsecureIgnoreHostKey returns a function that can be used for
-// ClientConfig.HostKeyCallback to accept any host key. It should
-// not be used for production code.
-func InsecureIgnoreHostKey() HostKeyCallback {
-	return func(hostname string, remote net.Addr, key PublicKey) error {
-		return nil
-	}
-}
-
-type fixedHostKey struct {
-	key PublicKey
-}
-
-func (f *fixedHostKey) check(hostname string, remote net.Addr, key PublicKey) error {
-	if f.key == nil {
-		return fmt.Errorf("ssh: required host key was nil")
-	}
-	if !bytes.Equal(key.Marshal(), f.key.Marshal()) {
-		return fmt.Errorf("ssh: host key mismatch")
-	}
-	return nil
-}
-
-// FixedHostKey returns a function for use in
-// ClientConfig.HostKeyCallback to accept only a specific host key.
-func FixedHostKey(key PublicKey) HostKeyCallback {
-	hk := &fixedHostKey{key}
-	return hk.check
-}
-
-// BannerDisplayStderr returns a function that can be used for
-// ClientConfig.BannerCallback to display banners on os.Stderr.
-func BannerDisplayStderr() BannerCallback {
-	return func(banner string) error {
-		_, err := os.Stderr.WriteString(banner)
-
-		return err
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/client_auth.go b/vendor/golang.org/x/crypto/ssh/client_auth.go
deleted file mode 100644
index 5f44b77..0000000
--- a/vendor/golang.org/x/crypto/ssh/client_auth.go
+++ /dev/null
@@ -1,525 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-)
-
-type authResult int
-
-const (
-	authFailure authResult = iota
-	authPartialSuccess
-	authSuccess
-)
-
-// clientAuthenticate authenticates with the remote server. See RFC 4252.
-func (c *connection) clientAuthenticate(config *ClientConfig) error {
-	// initiate user auth session
-	if err := c.transport.writePacket(Marshal(&serviceRequestMsg{serviceUserAuth})); err != nil {
-		return err
-	}
-	packet, err := c.transport.readPacket()
-	if err != nil {
-		return err
-	}
-	var serviceAccept serviceAcceptMsg
-	if err := Unmarshal(packet, &serviceAccept); err != nil {
-		return err
-	}
-
-	// during the authentication phase the client first attempts the "none" method
-	// then any untried methods suggested by the server.
-	tried := make(map[string]bool)
-	var lastMethods []string
-
-	sessionID := c.transport.getSessionID()
-	for auth := AuthMethod(new(noneAuth)); auth != nil; {
-		ok, methods, err := auth.auth(sessionID, config.User, c.transport, config.Rand)
-		if err != nil {
-			return err
-		}
-		if ok == authSuccess {
-			// success
-			return nil
-		} else if ok == authFailure {
-			tried[auth.method()] = true
-		}
-		if methods == nil {
-			methods = lastMethods
-		}
-		lastMethods = methods
-
-		auth = nil
-
-	findNext:
-		for _, a := range config.Auth {
-			candidateMethod := a.method()
-			if tried[candidateMethod] {
-				continue
-			}
-			for _, meth := range methods {
-				if meth == candidateMethod {
-					auth = a
-					break findNext
-				}
-			}
-		}
-	}
-	return fmt.Errorf("ssh: unable to authenticate, attempted methods %v, no supported methods remain", keys(tried))
-}
-
-func keys(m map[string]bool) []string {
-	s := make([]string, 0, len(m))
-
-	for key := range m {
-		s = append(s, key)
-	}
-	return s
-}
-
-// An AuthMethod represents an instance of an RFC 4252 authentication method.
-type AuthMethod interface {
-	// auth authenticates user over transport t.
-	// Returns true if authentication is successful.
-	// If authentication is not successful, a []string of alternative
-	// method names is returned. If the slice is nil, it will be ignored
-	// and the previous set of possible methods will be reused.
-	auth(session []byte, user string, p packetConn, rand io.Reader) (authResult, []string, error)
-
-	// method returns the RFC 4252 method name.
-	method() string
-}
-
-// "none" authentication, RFC 4252 section 5.2.
-type noneAuth int
-
-func (n *noneAuth) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
-	if err := c.writePacket(Marshal(&userAuthRequestMsg{
-		User:    user,
-		Service: serviceSSH,
-		Method:  "none",
-	})); err != nil {
-		return authFailure, nil, err
-	}
-
-	return handleAuthResponse(c)
-}
-
-func (n *noneAuth) method() string {
-	return "none"
-}
-
-// passwordCallback is an AuthMethod that fetches the password through
-// a function call, e.g. by prompting the user.
-type passwordCallback func() (password string, err error)
-
-func (cb passwordCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
-	type passwordAuthMsg struct {
-		User     string `sshtype:"50"`
-		Service  string
-		Method   string
-		Reply    bool
-		Password string
-	}
-
-	pw, err := cb()
-	// REVIEW NOTE: is there a need to support skipping a password attempt?
-	// The program may only find out that the user doesn't have a password
-	// when prompting.
-	if err != nil {
-		return authFailure, nil, err
-	}
-
-	if err := c.writePacket(Marshal(&passwordAuthMsg{
-		User:     user,
-		Service:  serviceSSH,
-		Method:   cb.method(),
-		Reply:    false,
-		Password: pw,
-	})); err != nil {
-		return authFailure, nil, err
-	}
-
-	return handleAuthResponse(c)
-}
-
-func (cb passwordCallback) method() string {
-	return "password"
-}
-
-// Password returns an AuthMethod using the given password.
-func Password(secret string) AuthMethod {
-	return passwordCallback(func() (string, error) { return secret, nil })
-}
-
-// PasswordCallback returns an AuthMethod that uses a callback for
-// fetching a password.
-func PasswordCallback(prompt func() (secret string, err error)) AuthMethod {
-	return passwordCallback(prompt)
-}
-
-type publickeyAuthMsg struct {
-	User    string `sshtype:"50"`
-	Service string
-	Method  string
-	// HasSig indicates to the receiver packet that the auth request is signed and
-	// should be used for authentication of the request.
-	HasSig   bool
-	Algoname string
-	PubKey   []byte
-	// Sig is tagged with "rest" so Marshal will exclude it during
-	// validateKey
-	Sig []byte `ssh:"rest"`
-}
-
-// publicKeyCallback is an AuthMethod that uses a set of key
-// pairs for authentication.
-type publicKeyCallback func() ([]Signer, error)
-
-func (cb publicKeyCallback) method() string {
-	return "publickey"
-}
-
-func (cb publicKeyCallback) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
-	// Authentication is performed by sending an enquiry to test if a key is
-	// acceptable to the remote. If the key is acceptable, the client will
-	// attempt to authenticate with the valid key.  If not the client will repeat
-	// the process with the remaining keys.
-
-	signers, err := cb()
-	if err != nil {
-		return authFailure, nil, err
-	}
-	var methods []string
-	for _, signer := range signers {
-		ok, err := validateKey(signer.PublicKey(), user, c)
-		if err != nil {
-			return authFailure, nil, err
-		}
-		if !ok {
-			continue
-		}
-
-		pub := signer.PublicKey()
-		pubKey := pub.Marshal()
-		sign, err := signer.Sign(rand, buildDataSignedForAuth(session, userAuthRequestMsg{
-			User:    user,
-			Service: serviceSSH,
-			Method:  cb.method(),
-		}, []byte(pub.Type()), pubKey))
-		if err != nil {
-			return authFailure, nil, err
-		}
-
-		// manually wrap the serialized signature in a string
-		s := Marshal(sign)
-		sig := make([]byte, stringLength(len(s)))
-		marshalString(sig, s)
-		msg := publickeyAuthMsg{
-			User:     user,
-			Service:  serviceSSH,
-			Method:   cb.method(),
-			HasSig:   true,
-			Algoname: pub.Type(),
-			PubKey:   pubKey,
-			Sig:      sig,
-		}
-		p := Marshal(&msg)
-		if err := c.writePacket(p); err != nil {
-			return authFailure, nil, err
-		}
-		var success authResult
-		success, methods, err = handleAuthResponse(c)
-		if err != nil {
-			return authFailure, nil, err
-		}
-
-		// If authentication succeeds or the list of available methods does not
-		// contain the "publickey" method, do not attempt to authenticate with any
-		// other keys.  According to RFC 4252 Section 7, the latter can occur when
-		// additional authentication methods are required.
-		if success == authSuccess || !containsMethod(methods, cb.method()) {
-			return success, methods, err
-		}
-	}
-
-	return authFailure, methods, nil
-}
-
-func containsMethod(methods []string, method string) bool {
-	for _, m := range methods {
-		if m == method {
-			return true
-		}
-	}
-
-	return false
-}
-
-// validateKey validates the key provided is acceptable to the server.
-func validateKey(key PublicKey, user string, c packetConn) (bool, error) {
-	pubKey := key.Marshal()
-	msg := publickeyAuthMsg{
-		User:     user,
-		Service:  serviceSSH,
-		Method:   "publickey",
-		HasSig:   false,
-		Algoname: key.Type(),
-		PubKey:   pubKey,
-	}
-	if err := c.writePacket(Marshal(&msg)); err != nil {
-		return false, err
-	}
-
-	return confirmKeyAck(key, c)
-}
-
-func confirmKeyAck(key PublicKey, c packetConn) (bool, error) {
-	pubKey := key.Marshal()
-	algoname := key.Type()
-
-	for {
-		packet, err := c.readPacket()
-		if err != nil {
-			return false, err
-		}
-		switch packet[0] {
-		case msgUserAuthBanner:
-			if err := handleBannerResponse(c, packet); err != nil {
-				return false, err
-			}
-		case msgUserAuthPubKeyOk:
-			var msg userAuthPubKeyOkMsg
-			if err := Unmarshal(packet, &msg); err != nil {
-				return false, err
-			}
-			if msg.Algo != algoname || !bytes.Equal(msg.PubKey, pubKey) {
-				return false, nil
-			}
-			return true, nil
-		case msgUserAuthFailure:
-			return false, nil
-		default:
-			return false, unexpectedMessageError(msgUserAuthSuccess, packet[0])
-		}
-	}
-}
-
-// PublicKeys returns an AuthMethod that uses the given key
-// pairs.
-func PublicKeys(signers ...Signer) AuthMethod {
-	return publicKeyCallback(func() ([]Signer, error) { return signers, nil })
-}
-
-// PublicKeysCallback returns an AuthMethod that runs the given
-// function to obtain a list of key pairs.
-func PublicKeysCallback(getSigners func() (signers []Signer, err error)) AuthMethod {
-	return publicKeyCallback(getSigners)
-}
-
-// handleAuthResponse returns whether the preceding authentication request succeeded
-// along with a list of remaining authentication methods to try next and
-// an error if an unexpected response was received.
-func handleAuthResponse(c packetConn) (authResult, []string, error) {
-	for {
-		packet, err := c.readPacket()
-		if err != nil {
-			return authFailure, nil, err
-		}
-
-		switch packet[0] {
-		case msgUserAuthBanner:
-			if err := handleBannerResponse(c, packet); err != nil {
-				return authFailure, nil, err
-			}
-		case msgUserAuthFailure:
-			var msg userAuthFailureMsg
-			if err := Unmarshal(packet, &msg); err != nil {
-				return authFailure, nil, err
-			}
-			if msg.PartialSuccess {
-				return authPartialSuccess, msg.Methods, nil
-			}
-			return authFailure, msg.Methods, nil
-		case msgUserAuthSuccess:
-			return authSuccess, nil, nil
-		default:
-			return authFailure, nil, unexpectedMessageError(msgUserAuthSuccess, packet[0])
-		}
-	}
-}
-
-func handleBannerResponse(c packetConn, packet []byte) error {
-	var msg userAuthBannerMsg
-	if err := Unmarshal(packet, &msg); err != nil {
-		return err
-	}
-
-	transport, ok := c.(*handshakeTransport)
-	if !ok {
-		return nil
-	}
-
-	if transport.bannerCallback != nil {
-		return transport.bannerCallback(msg.Message)
-	}
-
-	return nil
-}
-
-// KeyboardInteractiveChallenge should print questions, optionally
-// disabling echoing (e.g. for passwords), and return all the answers.
-// Challenge may be called multiple times in a single session. After
-// successful authentication, the server may send a challenge with no
-// questions, for which the user and instruction messages should be
-// printed.  RFC 4256 section 3.3 details how the UI should behave for
-// both CLI and GUI environments.
-type KeyboardInteractiveChallenge func(user, instruction string, questions []string, echos []bool) (answers []string, err error)
-
-// KeyboardInteractive returns an AuthMethod using a prompt/response
-// sequence controlled by the server.
-func KeyboardInteractive(challenge KeyboardInteractiveChallenge) AuthMethod {
-	return challenge
-}
-
-func (cb KeyboardInteractiveChallenge) method() string {
-	return "keyboard-interactive"
-}
-
-func (cb KeyboardInteractiveChallenge) auth(session []byte, user string, c packetConn, rand io.Reader) (authResult, []string, error) {
-	type initiateMsg struct {
-		User       string `sshtype:"50"`
-		Service    string
-		Method     string
-		Language   string
-		Submethods string
-	}
-
-	if err := c.writePacket(Marshal(&initiateMsg{
-		User:    user,
-		Service: serviceSSH,
-		Method:  "keyboard-interactive",
-	})); err != nil {
-		return authFailure, nil, err
-	}
-
-	for {
-		packet, err := c.readPacket()
-		if err != nil {
-			return authFailure, nil, err
-		}
-
-		// like handleAuthResponse, but with less options.
-		switch packet[0] {
-		case msgUserAuthBanner:
-			if err := handleBannerResponse(c, packet); err != nil {
-				return authFailure, nil, err
-			}
-			continue
-		case msgUserAuthInfoRequest:
-			// OK
-		case msgUserAuthFailure:
-			var msg userAuthFailureMsg
-			if err := Unmarshal(packet, &msg); err != nil {
-				return authFailure, nil, err
-			}
-			if msg.PartialSuccess {
-				return authPartialSuccess, msg.Methods, nil
-			}
-			return authFailure, msg.Methods, nil
-		case msgUserAuthSuccess:
-			return authSuccess, nil, nil
-		default:
-			return authFailure, nil, unexpectedMessageError(msgUserAuthInfoRequest, packet[0])
-		}
-
-		var msg userAuthInfoRequestMsg
-		if err := Unmarshal(packet, &msg); err != nil {
-			return authFailure, nil, err
-		}
-
-		// Manually unpack the prompt/echo pairs.
-		rest := msg.Prompts
-		var prompts []string
-		var echos []bool
-		for i := 0; i < int(msg.NumPrompts); i++ {
-			prompt, r, ok := parseString(rest)
-			if !ok || len(r) == 0 {
-				return authFailure, nil, errors.New("ssh: prompt format error")
-			}
-			prompts = append(prompts, string(prompt))
-			echos = append(echos, r[0] != 0)
-			rest = r[1:]
-		}
-
-		if len(rest) != 0 {
-			return authFailure, nil, errors.New("ssh: extra data following keyboard-interactive pairs")
-		}
-
-		answers, err := cb(msg.User, msg.Instruction, prompts, echos)
-		if err != nil {
-			return authFailure, nil, err
-		}
-
-		if len(answers) != len(prompts) {
-			return authFailure, nil, errors.New("ssh: not enough answers from keyboard-interactive callback")
-		}
-		responseLength := 1 + 4
-		for _, a := range answers {
-			responseLength += stringLength(len(a))
-		}
-		serialized := make([]byte, responseLength)
-		p := serialized
-		p[0] = msgUserAuthInfoResponse
-		p = p[1:]
-		p = marshalUint32(p, uint32(len(answers)))
-		for _, a := range answers {
-			p = marshalString(p, []byte(a))
-		}
-
-		if err := c.writePacket(serialized); err != nil {
-			return authFailure, nil, err
-		}
-	}
-}
-
-type retryableAuthMethod struct {
-	authMethod AuthMethod
-	maxTries   int
-}
-
-func (r *retryableAuthMethod) auth(session []byte, user string, c packetConn, rand io.Reader) (ok authResult, methods []string, err error) {
-	for i := 0; r.maxTries <= 0 || i < r.maxTries; i++ {
-		ok, methods, err = r.authMethod.auth(session, user, c, rand)
-		if ok != authFailure || err != nil { // either success, partial success or error terminate
-			return ok, methods, err
-		}
-	}
-	return ok, methods, err
-}
-
-func (r *retryableAuthMethod) method() string {
-	return r.authMethod.method()
-}
-
-// RetryableAuthMethod is a decorator for other auth methods enabling them to
-// be retried up to maxTries before considering that AuthMethod itself failed.
-// If maxTries is <= 0, will retry indefinitely
-//
-// This is useful for interactive clients using challenge/response type
-// authentication (e.g. Keyboard-Interactive, Password, etc) where the user
-// could mistype their response resulting in the server issuing a
-// SSH_MSG_USERAUTH_FAILURE (rfc4252 #8 [password] and rfc4256 #3.4
-// [keyboard-interactive]); Without this decorator, the non-retryable
-// AuthMethod would be removed from future consideration, and never tried again
-// (and so the user would never be able to retry their entry).
-func RetryableAuthMethod(auth AuthMethod, maxTries int) AuthMethod {
-	return &retryableAuthMethod{authMethod: auth, maxTries: maxTries}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/client_auth_test.go b/vendor/golang.org/x/crypto/ssh/client_auth_test.go
deleted file mode 100644
index 5fbb20d..0000000
--- a/vendor/golang.org/x/crypto/ssh/client_auth_test.go
+++ /dev/null
@@ -1,628 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto/rand"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-	"testing"
-)
-
-type keyboardInteractive map[string]string
-
-func (cr keyboardInteractive) Challenge(user string, instruction string, questions []string, echos []bool) ([]string, error) {
-	var answers []string
-	for _, q := range questions {
-		answers = append(answers, cr[q])
-	}
-	return answers, nil
-}
-
-// reused internally by tests
-var clientPassword = "tiger"
-
-// tryAuth runs a handshake with a given config against an SSH server
-// with config serverConfig
-func tryAuth(t *testing.T, config *ClientConfig) error {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	certChecker := CertChecker{
-		IsUserAuthority: func(k PublicKey) bool {
-			return bytes.Equal(k.Marshal(), testPublicKeys["ecdsa"].Marshal())
-		},
-		UserKeyFallback: func(conn ConnMetadata, key PublicKey) (*Permissions, error) {
-			if conn.User() == "testuser" && bytes.Equal(key.Marshal(), testPublicKeys["rsa"].Marshal()) {
-				return nil, nil
-			}
-
-			return nil, fmt.Errorf("pubkey for %q not acceptable", conn.User())
-		},
-		IsRevoked: func(c *Certificate) bool {
-			return c.Serial == 666
-		},
-	}
-
-	serverConfig := &ServerConfig{
-		PasswordCallback: func(conn ConnMetadata, pass []byte) (*Permissions, error) {
-			if conn.User() == "testuser" && string(pass) == clientPassword {
-				return nil, nil
-			}
-			return nil, errors.New("password auth failed")
-		},
-		PublicKeyCallback: certChecker.Authenticate,
-		KeyboardInteractiveCallback: func(conn ConnMetadata, challenge KeyboardInteractiveChallenge) (*Permissions, error) {
-			ans, err := challenge("user",
-				"instruction",
-				[]string{"question1", "question2"},
-				[]bool{true, true})
-			if err != nil {
-				return nil, err
-			}
-			ok := conn.User() == "testuser" && ans[0] == "answer1" && ans[1] == "answer2"
-			if ok {
-				challenge("user", "motd", nil, nil)
-				return nil, nil
-			}
-			return nil, errors.New("keyboard-interactive failed")
-		},
-	}
-	serverConfig.AddHostKey(testSigners["rsa"])
-
-	go newServer(c1, serverConfig)
-	_, _, _, err = NewClientConn(c2, "", config)
-	return err
-}
-
-func TestClientAuthPublicKey(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-}
-
-func TestAuthMethodPassword(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			Password(clientPassword),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-}
-
-func TestAuthMethodFallback(t *testing.T) {
-	var passwordCalled bool
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["rsa"]),
-			PasswordCallback(
-				func() (string, error) {
-					passwordCalled = true
-					return "WRONG", nil
-				}),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-
-	if passwordCalled {
-		t.Errorf("password auth tried before public-key auth.")
-	}
-}
-
-func TestAuthMethodWrongPassword(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			Password("wrong"),
-			PublicKeys(testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-}
-
-func TestAuthMethodKeyboardInteractive(t *testing.T) {
-	answers := keyboardInteractive(map[string]string{
-		"question1": "answer1",
-		"question2": "answer2",
-	})
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			KeyboardInteractive(answers.Challenge),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-}
-
-func TestAuthMethodWrongKeyboardInteractive(t *testing.T) {
-	answers := keyboardInteractive(map[string]string{
-		"question1": "answer1",
-		"question2": "WRONG",
-	})
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			KeyboardInteractive(answers.Challenge),
-		},
-	}
-
-	if err := tryAuth(t, config); err == nil {
-		t.Fatalf("wrong answers should not have authenticated with KeyboardInteractive")
-	}
-}
-
-// the mock server will only authenticate ssh-rsa keys
-func TestAuthMethodInvalidPublicKey(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["dsa"]),
-		},
-	}
-
-	if err := tryAuth(t, config); err == nil {
-		t.Fatalf("dsa private key should not have authenticated with rsa public key")
-	}
-}
-
-// the client should authenticate with the second key
-func TestAuthMethodRSAandDSA(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["dsa"], testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("client could not authenticate with rsa key: %v", err)
-	}
-}
-
-func TestClientHMAC(t *testing.T) {
-	for _, mac := range supportedMACs {
-		config := &ClientConfig{
-			User: "testuser",
-			Auth: []AuthMethod{
-				PublicKeys(testSigners["rsa"]),
-			},
-			Config: Config{
-				MACs: []string{mac},
-			},
-			HostKeyCallback: InsecureIgnoreHostKey(),
-		}
-		if err := tryAuth(t, config); err != nil {
-			t.Fatalf("client could not authenticate with mac algo %s: %v", mac, err)
-		}
-	}
-}
-
-// issue 4285.
-func TestClientUnsupportedCipher(t *testing.T) {
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(),
-		},
-		Config: Config{
-			Ciphers: []string{"aes128-cbc"}, // not currently supported
-		},
-	}
-	if err := tryAuth(t, config); err == nil {
-		t.Errorf("expected no ciphers in common")
-	}
-}
-
-func TestClientUnsupportedKex(t *testing.T) {
-	if os.Getenv("GO_BUILDER_NAME") != "" {
-		t.Skip("skipping known-flaky test on the Go build dashboard; see golang.org/issue/15198")
-	}
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(),
-		},
-		Config: Config{
-			KeyExchanges: []string{"diffie-hellman-group-exchange-sha256"}, // not currently supported
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if err := tryAuth(t, config); err == nil || !strings.Contains(err.Error(), "common algorithm") {
-		t.Errorf("got %v, expected 'common algorithm'", err)
-	}
-}
-
-func TestClientLoginCert(t *testing.T) {
-	cert := &Certificate{
-		Key:         testPublicKeys["rsa"],
-		ValidBefore: CertTimeInfinity,
-		CertType:    UserCert,
-	}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	certSigner, err := NewCertSigner(cert, testSigners["rsa"])
-	if err != nil {
-		t.Fatalf("NewCertSigner: %v", err)
-	}
-
-	clientConfig := &ClientConfig{
-		User:            "user",
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	clientConfig.Auth = append(clientConfig.Auth, PublicKeys(certSigner))
-
-	// should succeed
-	if err := tryAuth(t, clientConfig); err != nil {
-		t.Errorf("cert login failed: %v", err)
-	}
-
-	// corrupted signature
-	cert.Signature.Blob[0]++
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login passed with corrupted sig")
-	}
-
-	// revoked
-	cert.Serial = 666
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("revoked cert login succeeded")
-	}
-	cert.Serial = 1
-
-	// sign with wrong key
-	cert.SignCert(rand.Reader, testSigners["dsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login passed with non-authoritative key")
-	}
-
-	// host cert
-	cert.CertType = HostCert
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login passed with wrong type")
-	}
-	cert.CertType = UserCert
-
-	// principal specified
-	cert.ValidPrincipals = []string{"user"}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err != nil {
-		t.Errorf("cert login failed: %v", err)
-	}
-
-	// wrong principal specified
-	cert.ValidPrincipals = []string{"fred"}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login passed with wrong principal")
-	}
-	cert.ValidPrincipals = nil
-
-	// added critical option
-	cert.CriticalOptions = map[string]string{"root-access": "yes"}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login passed with unrecognized critical option")
-	}
-
-	// allowed source address
-	cert.CriticalOptions = map[string]string{"source-address": "127.0.0.42/24,::42/120"}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err != nil {
-		t.Errorf("cert login with source-address failed: %v", err)
-	}
-
-	// disallowed source address
-	cert.CriticalOptions = map[string]string{"source-address": "127.0.0.42,::42"}
-	cert.SignCert(rand.Reader, testSigners["ecdsa"])
-	if err := tryAuth(t, clientConfig); err == nil {
-		t.Errorf("cert login with source-address succeeded")
-	}
-}
-
-func testPermissionsPassing(withPermissions bool, t *testing.T) {
-	serverConfig := &ServerConfig{
-		PublicKeyCallback: func(conn ConnMetadata, key PublicKey) (*Permissions, error) {
-			if conn.User() == "nopermissions" {
-				return nil, nil
-			}
-			return &Permissions{}, nil
-		},
-	}
-	serverConfig.AddHostKey(testSigners["rsa"])
-
-	clientConfig := &ClientConfig{
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if withPermissions {
-		clientConfig.User = "permissions"
-	} else {
-		clientConfig.User = "nopermissions"
-	}
-
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	go NewClientConn(c2, "", clientConfig)
-	serverConn, err := newServer(c1, serverConfig)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if p := serverConn.Permissions; (p != nil) != withPermissions {
-		t.Fatalf("withPermissions is %t, but Permissions object is %#v", withPermissions, p)
-	}
-}
-
-func TestPermissionsPassing(t *testing.T) {
-	testPermissionsPassing(true, t)
-}
-
-func TestNoPermissionsPassing(t *testing.T) {
-	testPermissionsPassing(false, t)
-}
-
-func TestRetryableAuth(t *testing.T) {
-	n := 0
-	passwords := []string{"WRONG1", "WRONG2"}
-
-	config := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			RetryableAuthMethod(PasswordCallback(func() (string, error) {
-				p := passwords[n]
-				n++
-				return p, nil
-			}), 2),
-			PublicKeys(testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-	if n != 2 {
-		t.Fatalf("Did not try all passwords")
-	}
-}
-
-func ExampleRetryableAuthMethod(t *testing.T) {
-	user := "testuser"
-	NumberOfPrompts := 3
-
-	// Normally this would be a callback that prompts the user to answer the
-	// provided questions
-	Cb := func(user, instruction string, questions []string, echos []bool) (answers []string, err error) {
-		return []string{"answer1", "answer2"}, nil
-	}
-
-	config := &ClientConfig{
-		HostKeyCallback: InsecureIgnoreHostKey(),
-		User:            user,
-		Auth: []AuthMethod{
-			RetryableAuthMethod(KeyboardInteractiveChallenge(Cb), NumberOfPrompts),
-		},
-	}
-
-	if err := tryAuth(t, config); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-}
-
-// Test if username is received on server side when NoClientAuth is used
-func TestClientAuthNone(t *testing.T) {
-	user := "testuser"
-	serverConfig := &ServerConfig{
-		NoClientAuth: true,
-	}
-	serverConfig.AddHostKey(testSigners["rsa"])
-
-	clientConfig := &ClientConfig{
-		User:            user,
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	go NewClientConn(c2, "", clientConfig)
-	serverConn, err := newServer(c1, serverConfig)
-	if err != nil {
-		t.Fatalf("newServer: %v", err)
-	}
-	if serverConn.User() != user {
-		t.Fatalf("server: got %q, want %q", serverConn.User(), user)
-	}
-}
-
-// Test if authentication attempts are limited on server when MaxAuthTries is set
-func TestClientAuthMaxAuthTries(t *testing.T) {
-	user := "testuser"
-
-	serverConfig := &ServerConfig{
-		MaxAuthTries: 2,
-		PasswordCallback: func(conn ConnMetadata, pass []byte) (*Permissions, error) {
-			if conn.User() == "testuser" && string(pass) == "right" {
-				return nil, nil
-			}
-			return nil, errors.New("password auth failed")
-		},
-	}
-	serverConfig.AddHostKey(testSigners["rsa"])
-
-	expectedErr := fmt.Errorf("ssh: handshake failed: %v", &disconnectMsg{
-		Reason:  2,
-		Message: "too many authentication failures",
-	})
-
-	for tries := 2; tries < 4; tries++ {
-		n := tries
-		clientConfig := &ClientConfig{
-			User: user,
-			Auth: []AuthMethod{
-				RetryableAuthMethod(PasswordCallback(func() (string, error) {
-					n--
-					if n == 0 {
-						return "right", nil
-					}
-					return "wrong", nil
-				}), tries),
-			},
-			HostKeyCallback: InsecureIgnoreHostKey(),
-		}
-
-		c1, c2, err := netPipe()
-		if err != nil {
-			t.Fatalf("netPipe: %v", err)
-		}
-		defer c1.Close()
-		defer c2.Close()
-
-		go newServer(c1, serverConfig)
-		_, _, _, err = NewClientConn(c2, "", clientConfig)
-		if tries > 2 {
-			if err == nil {
-				t.Fatalf("client: got no error, want %s", expectedErr)
-			} else if err.Error() != expectedErr.Error() {
-				t.Fatalf("client: got %s, want %s", err, expectedErr)
-			}
-		} else {
-			if err != nil {
-				t.Fatalf("client: got %s, want no error", err)
-			}
-		}
-	}
-}
-
-// Test if authentication attempts are correctly limited on server
-// when more public keys are provided then MaxAuthTries
-func TestClientAuthMaxAuthTriesPublicKey(t *testing.T) {
-	signers := []Signer{}
-	for i := 0; i < 6; i++ {
-		signers = append(signers, testSigners["dsa"])
-	}
-
-	validConfig := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(append([]Signer{testSigners["rsa"]}, signers...)...),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if err := tryAuth(t, validConfig); err != nil {
-		t.Fatalf("unable to dial remote side: %s", err)
-	}
-
-	expectedErr := fmt.Errorf("ssh: handshake failed: %v", &disconnectMsg{
-		Reason:  2,
-		Message: "too many authentication failures",
-	})
-	invalidConfig := &ClientConfig{
-		User: "testuser",
-		Auth: []AuthMethod{
-			PublicKeys(append(signers, testSigners["rsa"])...),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	if err := tryAuth(t, invalidConfig); err == nil {
-		t.Fatalf("client: got no error, want %s", expectedErr)
-	} else if err.Error() != expectedErr.Error() {
-		t.Fatalf("client: got %s, want %s", err, expectedErr)
-	}
-}
-
-// Test whether authentication errors are being properly logged if all
-// authentication methods have been exhausted
-func TestClientAuthErrorList(t *testing.T) {
-	publicKeyErr := errors.New("This is an error from PublicKeyCallback")
-
-	clientConfig := &ClientConfig{
-		Auth: []AuthMethod{
-			PublicKeys(testSigners["rsa"]),
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	serverConfig := &ServerConfig{
-		PublicKeyCallback: func(_ ConnMetadata, _ PublicKey) (*Permissions, error) {
-			return nil, publicKeyErr
-		},
-	}
-	serverConfig.AddHostKey(testSigners["rsa"])
-
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	go NewClientConn(c2, "", clientConfig)
-	_, err = newServer(c1, serverConfig)
-	if err == nil {
-		t.Fatal("newServer: got nil, expected errors")
-	}
-
-	authErrs, ok := err.(*ServerAuthError)
-	if !ok {
-		t.Fatalf("errors: got %T, want *ssh.ServerAuthError", err)
-	}
-	for i, e := range authErrs.Errors {
-		switch i {
-		case 0:
-			if e != ErrNoAuth {
-				t.Fatalf("errors: got error %v, want ErrNoAuth", e)
-			}
-		case 1:
-			if e != publicKeyErr {
-				t.Fatalf("errors: got %v, want %v", e, publicKeyErr)
-			}
-		default:
-			t.Fatalf("errors: got %v, expected 2 errors", authErrs.Errors)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/client_test.go b/vendor/golang.org/x/crypto/ssh/client_test.go
deleted file mode 100644
index 81f9599..0000000
--- a/vendor/golang.org/x/crypto/ssh/client_test.go
+++ /dev/null
@@ -1,166 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"strings"
-	"testing"
-)
-
-func TestClientVersion(t *testing.T) {
-	for _, tt := range []struct {
-		name      string
-		version   string
-		multiLine string
-		wantErr   bool
-	}{
-		{
-			name:    "default version",
-			version: packageVersion,
-		},
-		{
-			name:    "custom version",
-			version: "SSH-2.0-CustomClientVersionString",
-		},
-		{
-			name:      "good multi line version",
-			version:   packageVersion,
-			multiLine: strings.Repeat("ignored\r\n", 20),
-		},
-		{
-			name:      "bad multi line version",
-			version:   packageVersion,
-			multiLine: "bad multi line version",
-			wantErr:   true,
-		},
-		{
-			name:      "long multi line version",
-			version:   packageVersion,
-			multiLine: strings.Repeat("long multi line version\r\n", 50)[:256],
-			wantErr:   true,
-		},
-	} {
-		t.Run(tt.name, func(t *testing.T) {
-			c1, c2, err := netPipe()
-			if err != nil {
-				t.Fatalf("netPipe: %v", err)
-			}
-			defer c1.Close()
-			defer c2.Close()
-			go func() {
-				if tt.multiLine != "" {
-					c1.Write([]byte(tt.multiLine))
-				}
-				NewClientConn(c1, "", &ClientConfig{
-					ClientVersion:   tt.version,
-					HostKeyCallback: InsecureIgnoreHostKey(),
-				})
-				c1.Close()
-			}()
-			conf := &ServerConfig{NoClientAuth: true}
-			conf.AddHostKey(testSigners["rsa"])
-			conn, _, _, err := NewServerConn(c2, conf)
-			if err == nil == tt.wantErr {
-				t.Fatalf("got err %v; wantErr %t", err, tt.wantErr)
-			}
-			if tt.wantErr {
-				// Don't verify the version on an expected error.
-				return
-			}
-			if got := string(conn.ClientVersion()); got != tt.version {
-				t.Fatalf("got %q; want %q", got, tt.version)
-			}
-		})
-	}
-}
-
-func TestHostKeyCheck(t *testing.T) {
-	for _, tt := range []struct {
-		name      string
-		wantError string
-		key       PublicKey
-	}{
-		{"no callback", "must specify HostKeyCallback", nil},
-		{"correct key", "", testSigners["rsa"].PublicKey()},
-		{"mismatch", "mismatch", testSigners["ecdsa"].PublicKey()},
-	} {
-		c1, c2, err := netPipe()
-		if err != nil {
-			t.Fatalf("netPipe: %v", err)
-		}
-		defer c1.Close()
-		defer c2.Close()
-		serverConf := &ServerConfig{
-			NoClientAuth: true,
-		}
-		serverConf.AddHostKey(testSigners["rsa"])
-
-		go NewServerConn(c1, serverConf)
-		clientConf := ClientConfig{
-			User: "user",
-		}
-		if tt.key != nil {
-			clientConf.HostKeyCallback = FixedHostKey(tt.key)
-		}
-
-		_, _, _, err = NewClientConn(c2, "", &clientConf)
-		if err != nil {
-			if tt.wantError == "" || !strings.Contains(err.Error(), tt.wantError) {
-				t.Errorf("%s: got error %q, missing %q", tt.name, err.Error(), tt.wantError)
-			}
-		} else if tt.wantError != "" {
-			t.Errorf("%s: succeeded, but want error string %q", tt.name, tt.wantError)
-		}
-	}
-}
-
-func TestBannerCallback(t *testing.T) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	serverConf := &ServerConfig{
-		PasswordCallback: func(conn ConnMetadata, password []byte) (*Permissions, error) {
-			return &Permissions{}, nil
-		},
-		BannerCallback: func(conn ConnMetadata) string {
-			return "Hello World"
-		},
-	}
-	serverConf.AddHostKey(testSigners["rsa"])
-	go NewServerConn(c1, serverConf)
-
-	var receivedBanner string
-	var bannerCount int
-	clientConf := ClientConfig{
-		Auth: []AuthMethod{
-			Password("123"),
-		},
-		User:            "user",
-		HostKeyCallback: InsecureIgnoreHostKey(),
-		BannerCallback: func(message string) error {
-			bannerCount++
-			receivedBanner = message
-			return nil
-		},
-	}
-
-	_, _, _, err = NewClientConn(c2, "", &clientConf)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	if bannerCount != 1 {
-		t.Errorf("got %d banners; want 1", bannerCount)
-	}
-
-	expected := "Hello World"
-	if receivedBanner != expected {
-		t.Fatalf("got %s; want %s", receivedBanner, expected)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/common.go b/vendor/golang.org/x/crypto/ssh/common.go
deleted file mode 100644
index 04f3620..0000000
--- a/vendor/golang.org/x/crypto/ssh/common.go
+++ /dev/null
@@ -1,383 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"crypto"
-	"crypto/rand"
-	"fmt"
-	"io"
-	"math"
-	"sync"
-
-	_ "crypto/sha1"
-	_ "crypto/sha256"
-	_ "crypto/sha512"
-)
-
-// These are string constants in the SSH protocol.
-const (
-	compressionNone = "none"
-	serviceUserAuth = "ssh-userauth"
-	serviceSSH      = "ssh-connection"
-)
-
-// supportedCiphers lists ciphers we support but might not recommend.
-var supportedCiphers = []string{
-	"aes128-ctr", "aes192-ctr", "aes256-ctr",
-	"aes128-gcm@openssh.com",
-	chacha20Poly1305ID,
-	"arcfour256", "arcfour128", "arcfour",
-	aes128cbcID,
-	tripledescbcID,
-}
-
-// preferredCiphers specifies the default preference for ciphers.
-var preferredCiphers = []string{
-	"aes128-gcm@openssh.com",
-	chacha20Poly1305ID,
-	"aes128-ctr", "aes192-ctr", "aes256-ctr",
-}
-
-// supportedKexAlgos specifies the supported key-exchange algorithms in
-// preference order.
-var supportedKexAlgos = []string{
-	kexAlgoCurve25519SHA256,
-	// P384 and P521 are not constant-time yet, but since we don't
-	// reuse ephemeral keys, using them for ECDH should be OK.
-	kexAlgoECDH256, kexAlgoECDH384, kexAlgoECDH521,
-	kexAlgoDH14SHA1, kexAlgoDH1SHA1,
-}
-
-// supportedHostKeyAlgos specifies the supported host-key algorithms (i.e. methods
-// of authenticating servers) in preference order.
-var supportedHostKeyAlgos = []string{
-	CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01,
-	CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01,
-
-	KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521,
-	KeyAlgoRSA, KeyAlgoDSA,
-
-	KeyAlgoED25519,
-}
-
-// supportedMACs specifies a default set of MAC algorithms in preference order.
-// This is based on RFC 4253, section 6.4, but with hmac-md5 variants removed
-// because they have reached the end of their useful life.
-var supportedMACs = []string{
-	"hmac-sha2-256-etm@openssh.com", "hmac-sha2-256", "hmac-sha1", "hmac-sha1-96",
-}
-
-var supportedCompressions = []string{compressionNone}
-
-// hashFuncs keeps the mapping of supported algorithms to their respective
-// hashes needed for signature verification.
-var hashFuncs = map[string]crypto.Hash{
-	KeyAlgoRSA:          crypto.SHA1,
-	KeyAlgoDSA:          crypto.SHA1,
-	KeyAlgoECDSA256:     crypto.SHA256,
-	KeyAlgoECDSA384:     crypto.SHA384,
-	KeyAlgoECDSA521:     crypto.SHA512,
-	CertAlgoRSAv01:      crypto.SHA1,
-	CertAlgoDSAv01:      crypto.SHA1,
-	CertAlgoECDSA256v01: crypto.SHA256,
-	CertAlgoECDSA384v01: crypto.SHA384,
-	CertAlgoECDSA521v01: crypto.SHA512,
-}
-
-// unexpectedMessageError results when the SSH message that we received didn't
-// match what we wanted.
-func unexpectedMessageError(expected, got uint8) error {
-	return fmt.Errorf("ssh: unexpected message type %d (expected %d)", got, expected)
-}
-
-// parseError results from a malformed SSH message.
-func parseError(tag uint8) error {
-	return fmt.Errorf("ssh: parse error in message type %d", tag)
-}
-
-func findCommon(what string, client []string, server []string) (common string, err error) {
-	for _, c := range client {
-		for _, s := range server {
-			if c == s {
-				return c, nil
-			}
-		}
-	}
-	return "", fmt.Errorf("ssh: no common algorithm for %s; client offered: %v, server offered: %v", what, client, server)
-}
-
-type directionAlgorithms struct {
-	Cipher      string
-	MAC         string
-	Compression string
-}
-
-// rekeyBytes returns a rekeying intervals in bytes.
-func (a *directionAlgorithms) rekeyBytes() int64 {
-	// According to RFC4344 block ciphers should rekey after
-	// 2^(BLOCKSIZE/4) blocks. For all AES flavors BLOCKSIZE is
-	// 128.
-	switch a.Cipher {
-	case "aes128-ctr", "aes192-ctr", "aes256-ctr", gcmCipherID, aes128cbcID:
-		return 16 * (1 << 32)
-
-	}
-
-	// For others, stick with RFC4253 recommendation to rekey after 1 Gb of data.
-	return 1 << 30
-}
-
-type algorithms struct {
-	kex     string
-	hostKey string
-	w       directionAlgorithms
-	r       directionAlgorithms
-}
-
-func findAgreedAlgorithms(clientKexInit, serverKexInit *kexInitMsg) (algs *algorithms, err error) {
-	result := &algorithms{}
-
-	result.kex, err = findCommon("key exchange", clientKexInit.KexAlgos, serverKexInit.KexAlgos)
-	if err != nil {
-		return
-	}
-
-	result.hostKey, err = findCommon("host key", clientKexInit.ServerHostKeyAlgos, serverKexInit.ServerHostKeyAlgos)
-	if err != nil {
-		return
-	}
-
-	result.w.Cipher, err = findCommon("client to server cipher", clientKexInit.CiphersClientServer, serverKexInit.CiphersClientServer)
-	if err != nil {
-		return
-	}
-
-	result.r.Cipher, err = findCommon("server to client cipher", clientKexInit.CiphersServerClient, serverKexInit.CiphersServerClient)
-	if err != nil {
-		return
-	}
-
-	result.w.MAC, err = findCommon("client to server MAC", clientKexInit.MACsClientServer, serverKexInit.MACsClientServer)
-	if err != nil {
-		return
-	}
-
-	result.r.MAC, err = findCommon("server to client MAC", clientKexInit.MACsServerClient, serverKexInit.MACsServerClient)
-	if err != nil {
-		return
-	}
-
-	result.w.Compression, err = findCommon("client to server compression", clientKexInit.CompressionClientServer, serverKexInit.CompressionClientServer)
-	if err != nil {
-		return
-	}
-
-	result.r.Compression, err = findCommon("server to client compression", clientKexInit.CompressionServerClient, serverKexInit.CompressionServerClient)
-	if err != nil {
-		return
-	}
-
-	return result, nil
-}
-
-// If rekeythreshold is too small, we can't make any progress sending
-// stuff.
-const minRekeyThreshold uint64 = 256
-
-// Config contains configuration data common to both ServerConfig and
-// ClientConfig.
-type Config struct {
-	// Rand provides the source of entropy for cryptographic
-	// primitives. If Rand is nil, the cryptographic random reader
-	// in package crypto/rand will be used.
-	Rand io.Reader
-
-	// The maximum number of bytes sent or received after which a
-	// new key is negotiated. It must be at least 256. If
-	// unspecified, a size suitable for the chosen cipher is used.
-	RekeyThreshold uint64
-
-	// The allowed key exchanges algorithms. If unspecified then a
-	// default set of algorithms is used.
-	KeyExchanges []string
-
-	// The allowed cipher algorithms. If unspecified then a sensible
-	// default is used.
-	Ciphers []string
-
-	// The allowed MAC algorithms. If unspecified then a sensible default
-	// is used.
-	MACs []string
-}
-
-// SetDefaults sets sensible values for unset fields in config. This is
-// exported for testing: Configs passed to SSH functions are copied and have
-// default values set automatically.
-func (c *Config) SetDefaults() {
-	if c.Rand == nil {
-		c.Rand = rand.Reader
-	}
-	if c.Ciphers == nil {
-		c.Ciphers = preferredCiphers
-	}
-	var ciphers []string
-	for _, c := range c.Ciphers {
-		if cipherModes[c] != nil {
-			// reject the cipher if we have no cipherModes definition
-			ciphers = append(ciphers, c)
-		}
-	}
-	c.Ciphers = ciphers
-
-	if c.KeyExchanges == nil {
-		c.KeyExchanges = supportedKexAlgos
-	}
-
-	if c.MACs == nil {
-		c.MACs = supportedMACs
-	}
-
-	if c.RekeyThreshold == 0 {
-		// cipher specific default
-	} else if c.RekeyThreshold < minRekeyThreshold {
-		c.RekeyThreshold = minRekeyThreshold
-	} else if c.RekeyThreshold >= math.MaxInt64 {
-		// Avoid weirdness if somebody uses -1 as a threshold.
-		c.RekeyThreshold = math.MaxInt64
-	}
-}
-
-// buildDataSignedForAuth returns the data that is signed in order to prove
-// possession of a private key. See RFC 4252, section 7.
-func buildDataSignedForAuth(sessionID []byte, req userAuthRequestMsg, algo, pubKey []byte) []byte {
-	data := struct {
-		Session []byte
-		Type    byte
-		User    string
-		Service string
-		Method  string
-		Sign    bool
-		Algo    []byte
-		PubKey  []byte
-	}{
-		sessionID,
-		msgUserAuthRequest,
-		req.User,
-		req.Service,
-		req.Method,
-		true,
-		algo,
-		pubKey,
-	}
-	return Marshal(data)
-}
-
-func appendU16(buf []byte, n uint16) []byte {
-	return append(buf, byte(n>>8), byte(n))
-}
-
-func appendU32(buf []byte, n uint32) []byte {
-	return append(buf, byte(n>>24), byte(n>>16), byte(n>>8), byte(n))
-}
-
-func appendU64(buf []byte, n uint64) []byte {
-	return append(buf,
-		byte(n>>56), byte(n>>48), byte(n>>40), byte(n>>32),
-		byte(n>>24), byte(n>>16), byte(n>>8), byte(n))
-}
-
-func appendInt(buf []byte, n int) []byte {
-	return appendU32(buf, uint32(n))
-}
-
-func appendString(buf []byte, s string) []byte {
-	buf = appendU32(buf, uint32(len(s)))
-	buf = append(buf, s...)
-	return buf
-}
-
-func appendBool(buf []byte, b bool) []byte {
-	if b {
-		return append(buf, 1)
-	}
-	return append(buf, 0)
-}
-
-// newCond is a helper to hide the fact that there is no usable zero
-// value for sync.Cond.
-func newCond() *sync.Cond { return sync.NewCond(new(sync.Mutex)) }
-
-// window represents the buffer available to clients
-// wishing to write to a channel.
-type window struct {
-	*sync.Cond
-	win          uint32 // RFC 4254 5.2 says the window size can grow to 2^32-1
-	writeWaiters int
-	closed       bool
-}
-
-// add adds win to the amount of window available
-// for consumers.
-func (w *window) add(win uint32) bool {
-	// a zero sized window adjust is a noop.
-	if win == 0 {
-		return true
-	}
-	w.L.Lock()
-	if w.win+win < win {
-		w.L.Unlock()
-		return false
-	}
-	w.win += win
-	// It is unusual that multiple goroutines would be attempting to reserve
-	// window space, but not guaranteed. Use broadcast to notify all waiters
-	// that additional window is available.
-	w.Broadcast()
-	w.L.Unlock()
-	return true
-}
-
-// close sets the window to closed, so all reservations fail
-// immediately.
-func (w *window) close() {
-	w.L.Lock()
-	w.closed = true
-	w.Broadcast()
-	w.L.Unlock()
-}
-
-// reserve reserves win from the available window capacity.
-// If no capacity remains, reserve will block. reserve may
-// return less than requested.
-func (w *window) reserve(win uint32) (uint32, error) {
-	var err error
-	w.L.Lock()
-	w.writeWaiters++
-	w.Broadcast()
-	for w.win == 0 && !w.closed {
-		w.Wait()
-	}
-	w.writeWaiters--
-	if w.win < win {
-		win = w.win
-	}
-	w.win -= win
-	if w.closed {
-		err = io.EOF
-	}
-	w.L.Unlock()
-	return win, err
-}
-
-// waitWriterBlocked waits until some goroutine is blocked for further
-// writes. It is used in tests only.
-func (w *window) waitWriterBlocked() {
-	w.Cond.L.Lock()
-	for w.writeWaiters == 0 {
-		w.Cond.Wait()
-	}
-	w.Cond.L.Unlock()
-}
diff --git a/vendor/golang.org/x/crypto/ssh/connection.go b/vendor/golang.org/x/crypto/ssh/connection.go
deleted file mode 100644
index fd6b068..0000000
--- a/vendor/golang.org/x/crypto/ssh/connection.go
+++ /dev/null
@@ -1,143 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"fmt"
-	"net"
-)
-
-// OpenChannelError is returned if the other side rejects an
-// OpenChannel request.
-type OpenChannelError struct {
-	Reason  RejectionReason
-	Message string
-}
-
-func (e *OpenChannelError) Error() string {
-	return fmt.Sprintf("ssh: rejected: %s (%s)", e.Reason, e.Message)
-}
-
-// ConnMetadata holds metadata for the connection.
-type ConnMetadata interface {
-	// User returns the user ID for this connection.
-	User() string
-
-	// SessionID returns the session hash, also denoted by H.
-	SessionID() []byte
-
-	// ClientVersion returns the client's version string as hashed
-	// into the session ID.
-	ClientVersion() []byte
-
-	// ServerVersion returns the server's version string as hashed
-	// into the session ID.
-	ServerVersion() []byte
-
-	// RemoteAddr returns the remote address for this connection.
-	RemoteAddr() net.Addr
-
-	// LocalAddr returns the local address for this connection.
-	LocalAddr() net.Addr
-}
-
-// Conn represents an SSH connection for both server and client roles.
-// Conn is the basis for implementing an application layer, such
-// as ClientConn, which implements the traditional shell access for
-// clients.
-type Conn interface {
-	ConnMetadata
-
-	// SendRequest sends a global request, and returns the
-	// reply. If wantReply is true, it returns the response status
-	// and payload. See also RFC4254, section 4.
-	SendRequest(name string, wantReply bool, payload []byte) (bool, []byte, error)
-
-	// OpenChannel tries to open an channel. If the request is
-	// rejected, it returns *OpenChannelError. On success it returns
-	// the SSH Channel and a Go channel for incoming, out-of-band
-	// requests. The Go channel must be serviced, or the
-	// connection will hang.
-	OpenChannel(name string, data []byte) (Channel, <-chan *Request, error)
-
-	// Close closes the underlying network connection
-	Close() error
-
-	// Wait blocks until the connection has shut down, and returns the
-	// error causing the shutdown.
-	Wait() error
-
-	// TODO(hanwen): consider exposing:
-	//   RequestKeyChange
-	//   Disconnect
-}
-
-// DiscardRequests consumes and rejects all requests from the
-// passed-in channel.
-func DiscardRequests(in <-chan *Request) {
-	for req := range in {
-		if req.WantReply {
-			req.Reply(false, nil)
-		}
-	}
-}
-
-// A connection represents an incoming connection.
-type connection struct {
-	transport *handshakeTransport
-	sshConn
-
-	// The connection protocol.
-	*mux
-}
-
-func (c *connection) Close() error {
-	return c.sshConn.conn.Close()
-}
-
-// sshconn provides net.Conn metadata, but disallows direct reads and
-// writes.
-type sshConn struct {
-	conn net.Conn
-
-	user          string
-	sessionID     []byte
-	clientVersion []byte
-	serverVersion []byte
-}
-
-func dup(src []byte) []byte {
-	dst := make([]byte, len(src))
-	copy(dst, src)
-	return dst
-}
-
-func (c *sshConn) User() string {
-	return c.user
-}
-
-func (c *sshConn) RemoteAddr() net.Addr {
-	return c.conn.RemoteAddr()
-}
-
-func (c *sshConn) Close() error {
-	return c.conn.Close()
-}
-
-func (c *sshConn) LocalAddr() net.Addr {
-	return c.conn.LocalAddr()
-}
-
-func (c *sshConn) SessionID() []byte {
-	return dup(c.sessionID)
-}
-
-func (c *sshConn) ClientVersion() []byte {
-	return dup(c.clientVersion)
-}
-
-func (c *sshConn) ServerVersion() []byte {
-	return dup(c.serverVersion)
-}
diff --git a/vendor/golang.org/x/crypto/ssh/doc.go b/vendor/golang.org/x/crypto/ssh/doc.go
deleted file mode 100644
index 67b7322..0000000
--- a/vendor/golang.org/x/crypto/ssh/doc.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-Package ssh implements an SSH client and server.
-
-SSH is a transport security protocol, an authentication protocol and a
-family of application protocols. The most typical application level
-protocol is a remote shell and this is specifically implemented.  However,
-the multiplexed nature of SSH is exposed to users that wish to support
-others.
-
-References:
-  [PROTOCOL.certkeys]: http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/PROTOCOL.certkeys?rev=HEAD
-  [SSH-PARAMETERS]:    http://www.iana.org/assignments/ssh-parameters/ssh-parameters.xml#ssh-parameters-1
-
-This package does not fall under the stability promise of the Go language itself,
-so its API may be changed when pressing needs arise.
-*/
-package ssh // import "golang.org/x/crypto/ssh"
diff --git a/vendor/golang.org/x/crypto/ssh/example_test.go b/vendor/golang.org/x/crypto/ssh/example_test.go
deleted file mode 100644
index b910c7b..0000000
--- a/vendor/golang.org/x/crypto/ssh/example_test.go
+++ /dev/null
@@ -1,320 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh_test
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"net"
-	"net/http"
-	"os"
-	"path/filepath"
-	"strings"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/terminal"
-)
-
-func ExampleNewServerConn() {
-	// Public key authentication is done by comparing
-	// the public key of a received connection
-	// with the entries in the authorized_keys file.
-	authorizedKeysBytes, err := ioutil.ReadFile("authorized_keys")
-	if err != nil {
-		log.Fatalf("Failed to load authorized_keys, err: %v", err)
-	}
-
-	authorizedKeysMap := map[string]bool{}
-	for len(authorizedKeysBytes) > 0 {
-		pubKey, _, _, rest, err := ssh.ParseAuthorizedKey(authorizedKeysBytes)
-		if err != nil {
-			log.Fatal(err)
-		}
-
-		authorizedKeysMap[string(pubKey.Marshal())] = true
-		authorizedKeysBytes = rest
-	}
-
-	// An SSH server is represented by a ServerConfig, which holds
-	// certificate details and handles authentication of ServerConns.
-	config := &ssh.ServerConfig{
-		// Remove to disable password auth.
-		PasswordCallback: func(c ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) {
-			// Should use constant-time compare (or better, salt+hash) in
-			// a production setting.
-			if c.User() == "testuser" && string(pass) == "tiger" {
-				return nil, nil
-			}
-			return nil, fmt.Errorf("password rejected for %q", c.User())
-		},
-
-		// Remove to disable public key auth.
-		PublicKeyCallback: func(c ssh.ConnMetadata, pubKey ssh.PublicKey) (*ssh.Permissions, error) {
-			if authorizedKeysMap[string(pubKey.Marshal())] {
-				return &ssh.Permissions{
-					// Record the public key used for authentication.
-					Extensions: map[string]string{
-						"pubkey-fp": ssh.FingerprintSHA256(pubKey),
-					},
-				}, nil
-			}
-			return nil, fmt.Errorf("unknown public key for %q", c.User())
-		},
-	}
-
-	privateBytes, err := ioutil.ReadFile("id_rsa")
-	if err != nil {
-		log.Fatal("Failed to load private key: ", err)
-	}
-
-	private, err := ssh.ParsePrivateKey(privateBytes)
-	if err != nil {
-		log.Fatal("Failed to parse private key: ", err)
-	}
-
-	config.AddHostKey(private)
-
-	// Once a ServerConfig has been configured, connections can be
-	// accepted.
-	listener, err := net.Listen("tcp", "0.0.0.0:2022")
-	if err != nil {
-		log.Fatal("failed to listen for connection: ", err)
-	}
-	nConn, err := listener.Accept()
-	if err != nil {
-		log.Fatal("failed to accept incoming connection: ", err)
-	}
-
-	// Before use, a handshake must be performed on the incoming
-	// net.Conn.
-	conn, chans, reqs, err := ssh.NewServerConn(nConn, config)
-	if err != nil {
-		log.Fatal("failed to handshake: ", err)
-	}
-	log.Printf("logged in with key %s", conn.Permissions.Extensions["pubkey-fp"])
-
-	// The incoming Request channel must be serviced.
-	go ssh.DiscardRequests(reqs)
-
-	// Service the incoming Channel channel.
-	for newChannel := range chans {
-		// Channels have a type, depending on the application level
-		// protocol intended. In the case of a shell, the type is
-		// "session" and ServerShell may be used to present a simple
-		// terminal interface.
-		if newChannel.ChannelType() != "session" {
-			newChannel.Reject(ssh.UnknownChannelType, "unknown channel type")
-			continue
-		}
-		channel, requests, err := newChannel.Accept()
-		if err != nil {
-			log.Fatalf("Could not accept channel: %v", err)
-		}
-
-		// Sessions have out-of-band requests such as "shell",
-		// "pty-req" and "env".  Here we handle only the
-		// "shell" request.
-		go func(in <-chan *ssh.Request) {
-			for req := range in {
-				req.Reply(req.Type == "shell", nil)
-			}
-		}(requests)
-
-		term := terminal.NewTerminal(channel, "> ")
-
-		go func() {
-			defer channel.Close()
-			for {
-				line, err := term.ReadLine()
-				if err != nil {
-					break
-				}
-				fmt.Println(line)
-			}
-		}()
-	}
-}
-
-func ExampleHostKeyCheck() {
-	// Every client must provide a host key check.  Here is a
-	// simple-minded parse of OpenSSH's known_hosts file
-	host := "hostname"
-	file, err := os.Open(filepath.Join(os.Getenv("HOME"), ".ssh", "known_hosts"))
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer file.Close()
-
-	scanner := bufio.NewScanner(file)
-	var hostKey ssh.PublicKey
-	for scanner.Scan() {
-		fields := strings.Split(scanner.Text(), " ")
-		if len(fields) != 3 {
-			continue
-		}
-		if strings.Contains(fields[0], host) {
-			var err error
-			hostKey, _, _, _, err = ssh.ParseAuthorizedKey(scanner.Bytes())
-			if err != nil {
-				log.Fatalf("error parsing %q: %v", fields[2], err)
-			}
-			break
-		}
-	}
-
-	if hostKey == nil {
-		log.Fatalf("no hostkey for %s", host)
-	}
-
-	config := ssh.ClientConfig{
-		User:            os.Getenv("USER"),
-		HostKeyCallback: ssh.FixedHostKey(hostKey),
-	}
-
-	_, err = ssh.Dial("tcp", host+":22", &config)
-	log.Println(err)
-}
-
-func ExampleDial() {
-	var hostKey ssh.PublicKey
-	// An SSH client is represented with a ClientConn.
-	//
-	// To authenticate with the remote server you must pass at least one
-	// implementation of AuthMethod via the Auth field in ClientConfig,
-	// and provide a HostKeyCallback.
-	config := &ssh.ClientConfig{
-		User: "username",
-		Auth: []ssh.AuthMethod{
-			ssh.Password("yourpassword"),
-		},
-		HostKeyCallback: ssh.FixedHostKey(hostKey),
-	}
-	client, err := ssh.Dial("tcp", "yourserver.com:22", config)
-	if err != nil {
-		log.Fatal("Failed to dial: ", err)
-	}
-
-	// Each ClientConn can support multiple interactive sessions,
-	// represented by a Session.
-	session, err := client.NewSession()
-	if err != nil {
-		log.Fatal("Failed to create session: ", err)
-	}
-	defer session.Close()
-
-	// Once a Session is created, you can execute a single command on
-	// the remote side using the Run method.
-	var b bytes.Buffer
-	session.Stdout = &b
-	if err := session.Run("/usr/bin/whoami"); err != nil {
-		log.Fatal("Failed to run: " + err.Error())
-	}
-	fmt.Println(b.String())
-}
-
-func ExamplePublicKeys() {
-	var hostKey ssh.PublicKey
-	// A public key may be used to authenticate against the remote
-	// server by using an unencrypted PEM-encoded private key file.
-	//
-	// If you have an encrypted private key, the crypto/x509 package
-	// can be used to decrypt it.
-	key, err := ioutil.ReadFile("/home/user/.ssh/id_rsa")
-	if err != nil {
-		log.Fatalf("unable to read private key: %v", err)
-	}
-
-	// Create the Signer for this private key.
-	signer, err := ssh.ParsePrivateKey(key)
-	if err != nil {
-		log.Fatalf("unable to parse private key: %v", err)
-	}
-
-	config := &ssh.ClientConfig{
-		User: "user",
-		Auth: []ssh.AuthMethod{
-			// Use the PublicKeys method for remote authentication.
-			ssh.PublicKeys(signer),
-		},
-		HostKeyCallback: ssh.FixedHostKey(hostKey),
-	}
-
-	// Connect to the remote server and perform the SSH handshake.
-	client, err := ssh.Dial("tcp", "host.com:22", config)
-	if err != nil {
-		log.Fatalf("unable to connect: %v", err)
-	}
-	defer client.Close()
-}
-
-func ExampleClient_Listen() {
-	var hostKey ssh.PublicKey
-	config := &ssh.ClientConfig{
-		User: "username",
-		Auth: []ssh.AuthMethod{
-			ssh.Password("password"),
-		},
-		HostKeyCallback: ssh.FixedHostKey(hostKey),
-	}
-	// Dial your ssh server.
-	conn, err := ssh.Dial("tcp", "localhost:22", config)
-	if err != nil {
-		log.Fatal("unable to connect: ", err)
-	}
-	defer conn.Close()
-
-	// Request the remote side to open port 8080 on all interfaces.
-	l, err := conn.Listen("tcp", "0.0.0.0:8080")
-	if err != nil {
-		log.Fatal("unable to register tcp forward: ", err)
-	}
-	defer l.Close()
-
-	// Serve HTTP with your SSH server acting as a reverse proxy.
-	http.Serve(l, http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
-		fmt.Fprintf(resp, "Hello world!\n")
-	}))
-}
-
-func ExampleSession_RequestPty() {
-	var hostKey ssh.PublicKey
-	// Create client config
-	config := &ssh.ClientConfig{
-		User: "username",
-		Auth: []ssh.AuthMethod{
-			ssh.Password("password"),
-		},
-		HostKeyCallback: ssh.FixedHostKey(hostKey),
-	}
-	// Connect to ssh server
-	conn, err := ssh.Dial("tcp", "localhost:22", config)
-	if err != nil {
-		log.Fatal("unable to connect: ", err)
-	}
-	defer conn.Close()
-	// Create a session
-	session, err := conn.NewSession()
-	if err != nil {
-		log.Fatal("unable to create session: ", err)
-	}
-	defer session.Close()
-	// Set up terminal modes
-	modes := ssh.TerminalModes{
-		ssh.ECHO:          0,     // disable echoing
-		ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
-		ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
-	}
-	// Request pseudo terminal
-	if err := session.RequestPty("xterm", 40, 80, modes); err != nil {
-		log.Fatal("request for pseudo terminal failed: ", err)
-	}
-	// Start remote shell
-	if err := session.Shell(); err != nil {
-		log.Fatal("failed to start shell: ", err)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/handshake.go b/vendor/golang.org/x/crypto/ssh/handshake.go
deleted file mode 100644
index 4f7912e..0000000
--- a/vendor/golang.org/x/crypto/ssh/handshake.go
+++ /dev/null
@@ -1,646 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"crypto/rand"
-	"errors"
-	"fmt"
-	"io"
-	"log"
-	"net"
-	"sync"
-)
-
-// debugHandshake, if set, prints messages sent and received.  Key
-// exchange messages are printed as if DH were used, so the debug
-// messages are wrong when using ECDH.
-const debugHandshake = false
-
-// chanSize sets the amount of buffering SSH connections. This is
-// primarily for testing: setting chanSize=0 uncovers deadlocks more
-// quickly.
-const chanSize = 16
-
-// keyingTransport is a packet based transport that supports key
-// changes. It need not be thread-safe. It should pass through
-// msgNewKeys in both directions.
-type keyingTransport interface {
-	packetConn
-
-	// prepareKeyChange sets up a key change. The key change for a
-	// direction will be effected if a msgNewKeys message is sent
-	// or received.
-	prepareKeyChange(*algorithms, *kexResult) error
-}
-
-// handshakeTransport implements rekeying on top of a keyingTransport
-// and offers a thread-safe writePacket() interface.
-type handshakeTransport struct {
-	conn   keyingTransport
-	config *Config
-
-	serverVersion []byte
-	clientVersion []byte
-
-	// hostKeys is non-empty if we are the server. In that case,
-	// it contains all host keys that can be used to sign the
-	// connection.
-	hostKeys []Signer
-
-	// hostKeyAlgorithms is non-empty if we are the client. In that case,
-	// we accept these key types from the server as host key.
-	hostKeyAlgorithms []string
-
-	// On read error, incoming is closed, and readError is set.
-	incoming  chan []byte
-	readError error
-
-	mu             sync.Mutex
-	writeError     error
-	sentInitPacket []byte
-	sentInitMsg    *kexInitMsg
-	pendingPackets [][]byte // Used when a key exchange is in progress.
-
-	// If the read loop wants to schedule a kex, it pings this
-	// channel, and the write loop will send out a kex
-	// message.
-	requestKex chan struct{}
-
-	// If the other side requests or confirms a kex, its kexInit
-	// packet is sent here for the write loop to find it.
-	startKex chan *pendingKex
-
-	// data for host key checking
-	hostKeyCallback HostKeyCallback
-	dialAddress     string
-	remoteAddr      net.Addr
-
-	// bannerCallback is non-empty if we are the client and it has been set in
-	// ClientConfig. In that case it is called during the user authentication
-	// dance to handle a custom server's message.
-	bannerCallback BannerCallback
-
-	// Algorithms agreed in the last key exchange.
-	algorithms *algorithms
-
-	readPacketsLeft uint32
-	readBytesLeft   int64
-
-	writePacketsLeft uint32
-	writeBytesLeft   int64
-
-	// The session ID or nil if first kex did not complete yet.
-	sessionID []byte
-}
-
-type pendingKex struct {
-	otherInit []byte
-	done      chan error
-}
-
-func newHandshakeTransport(conn keyingTransport, config *Config, clientVersion, serverVersion []byte) *handshakeTransport {
-	t := &handshakeTransport{
-		conn:          conn,
-		serverVersion: serverVersion,
-		clientVersion: clientVersion,
-		incoming:      make(chan []byte, chanSize),
-		requestKex:    make(chan struct{}, 1),
-		startKex:      make(chan *pendingKex, 1),
-
-		config: config,
-	}
-	t.resetReadThresholds()
-	t.resetWriteThresholds()
-
-	// We always start with a mandatory key exchange.
-	t.requestKex <- struct{}{}
-	return t
-}
-
-func newClientTransport(conn keyingTransport, clientVersion, serverVersion []byte, config *ClientConfig, dialAddr string, addr net.Addr) *handshakeTransport {
-	t := newHandshakeTransport(conn, &config.Config, clientVersion, serverVersion)
-	t.dialAddress = dialAddr
-	t.remoteAddr = addr
-	t.hostKeyCallback = config.HostKeyCallback
-	t.bannerCallback = config.BannerCallback
-	if config.HostKeyAlgorithms != nil {
-		t.hostKeyAlgorithms = config.HostKeyAlgorithms
-	} else {
-		t.hostKeyAlgorithms = supportedHostKeyAlgos
-	}
-	go t.readLoop()
-	go t.kexLoop()
-	return t
-}
-
-func newServerTransport(conn keyingTransport, clientVersion, serverVersion []byte, config *ServerConfig) *handshakeTransport {
-	t := newHandshakeTransport(conn, &config.Config, clientVersion, serverVersion)
-	t.hostKeys = config.hostKeys
-	go t.readLoop()
-	go t.kexLoop()
-	return t
-}
-
-func (t *handshakeTransport) getSessionID() []byte {
-	return t.sessionID
-}
-
-// waitSession waits for the session to be established. This should be
-// the first thing to call after instantiating handshakeTransport.
-func (t *handshakeTransport) waitSession() error {
-	p, err := t.readPacket()
-	if err != nil {
-		return err
-	}
-	if p[0] != msgNewKeys {
-		return fmt.Errorf("ssh: first packet should be msgNewKeys")
-	}
-
-	return nil
-}
-
-func (t *handshakeTransport) id() string {
-	if len(t.hostKeys) > 0 {
-		return "server"
-	}
-	return "client"
-}
-
-func (t *handshakeTransport) printPacket(p []byte, write bool) {
-	action := "got"
-	if write {
-		action = "sent"
-	}
-
-	if p[0] == msgChannelData || p[0] == msgChannelExtendedData {
-		log.Printf("%s %s data (packet %d bytes)", t.id(), action, len(p))
-	} else {
-		msg, err := decode(p)
-		log.Printf("%s %s %T %v (%v)", t.id(), action, msg, msg, err)
-	}
-}
-
-func (t *handshakeTransport) readPacket() ([]byte, error) {
-	p, ok := <-t.incoming
-	if !ok {
-		return nil, t.readError
-	}
-	return p, nil
-}
-
-func (t *handshakeTransport) readLoop() {
-	first := true
-	for {
-		p, err := t.readOnePacket(first)
-		first = false
-		if err != nil {
-			t.readError = err
-			close(t.incoming)
-			break
-		}
-		if p[0] == msgIgnore || p[0] == msgDebug {
-			continue
-		}
-		t.incoming <- p
-	}
-
-	// Stop writers too.
-	t.recordWriteError(t.readError)
-
-	// Unblock the writer should it wait for this.
-	close(t.startKex)
-
-	// Don't close t.requestKex; it's also written to from writePacket.
-}
-
-func (t *handshakeTransport) pushPacket(p []byte) error {
-	if debugHandshake {
-		t.printPacket(p, true)
-	}
-	return t.conn.writePacket(p)
-}
-
-func (t *handshakeTransport) getWriteError() error {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	return t.writeError
-}
-
-func (t *handshakeTransport) recordWriteError(err error) {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	if t.writeError == nil && err != nil {
-		t.writeError = err
-	}
-}
-
-func (t *handshakeTransport) requestKeyExchange() {
-	select {
-	case t.requestKex <- struct{}{}:
-	default:
-		// something already requested a kex, so do nothing.
-	}
-}
-
-func (t *handshakeTransport) resetWriteThresholds() {
-	t.writePacketsLeft = packetRekeyThreshold
-	if t.config.RekeyThreshold > 0 {
-		t.writeBytesLeft = int64(t.config.RekeyThreshold)
-	} else if t.algorithms != nil {
-		t.writeBytesLeft = t.algorithms.w.rekeyBytes()
-	} else {
-		t.writeBytesLeft = 1 << 30
-	}
-}
-
-func (t *handshakeTransport) kexLoop() {
-
-write:
-	for t.getWriteError() == nil {
-		var request *pendingKex
-		var sent bool
-
-		for request == nil || !sent {
-			var ok bool
-			select {
-			case request, ok = <-t.startKex:
-				if !ok {
-					break write
-				}
-			case <-t.requestKex:
-				break
-			}
-
-			if !sent {
-				if err := t.sendKexInit(); err != nil {
-					t.recordWriteError(err)
-					break
-				}
-				sent = true
-			}
-		}
-
-		if err := t.getWriteError(); err != nil {
-			if request != nil {
-				request.done <- err
-			}
-			break
-		}
-
-		// We're not servicing t.requestKex, but that is OK:
-		// we never block on sending to t.requestKex.
-
-		// We're not servicing t.startKex, but the remote end
-		// has just sent us a kexInitMsg, so it can't send
-		// another key change request, until we close the done
-		// channel on the pendingKex request.
-
-		err := t.enterKeyExchange(request.otherInit)
-
-		t.mu.Lock()
-		t.writeError = err
-		t.sentInitPacket = nil
-		t.sentInitMsg = nil
-
-		t.resetWriteThresholds()
-
-		// we have completed the key exchange. Since the
-		// reader is still blocked, it is safe to clear out
-		// the requestKex channel. This avoids the situation
-		// where: 1) we consumed our own request for the
-		// initial kex, and 2) the kex from the remote side
-		// caused another send on the requestKex channel,
-	clear:
-		for {
-			select {
-			case <-t.requestKex:
-				//
-			default:
-				break clear
-			}
-		}
-
-		request.done <- t.writeError
-
-		// kex finished. Push packets that we received while
-		// the kex was in progress. Don't look at t.startKex
-		// and don't increment writtenSinceKex: if we trigger
-		// another kex while we are still busy with the last
-		// one, things will become very confusing.
-		for _, p := range t.pendingPackets {
-			t.writeError = t.pushPacket(p)
-			if t.writeError != nil {
-				break
-			}
-		}
-		t.pendingPackets = t.pendingPackets[:0]
-		t.mu.Unlock()
-	}
-
-	// drain startKex channel. We don't service t.requestKex
-	// because nobody does blocking sends there.
-	go func() {
-		for init := range t.startKex {
-			init.done <- t.writeError
-		}
-	}()
-
-	// Unblock reader.
-	t.conn.Close()
-}
-
-// The protocol uses uint32 for packet counters, so we can't let them
-// reach 1<<32.  We will actually read and write more packets than
-// this, though: the other side may send more packets, and after we
-// hit this limit on writing we will send a few more packets for the
-// key exchange itself.
-const packetRekeyThreshold = (1 << 31)
-
-func (t *handshakeTransport) resetReadThresholds() {
-	t.readPacketsLeft = packetRekeyThreshold
-	if t.config.RekeyThreshold > 0 {
-		t.readBytesLeft = int64(t.config.RekeyThreshold)
-	} else if t.algorithms != nil {
-		t.readBytesLeft = t.algorithms.r.rekeyBytes()
-	} else {
-		t.readBytesLeft = 1 << 30
-	}
-}
-
-func (t *handshakeTransport) readOnePacket(first bool) ([]byte, error) {
-	p, err := t.conn.readPacket()
-	if err != nil {
-		return nil, err
-	}
-
-	if t.readPacketsLeft > 0 {
-		t.readPacketsLeft--
-	} else {
-		t.requestKeyExchange()
-	}
-
-	if t.readBytesLeft > 0 {
-		t.readBytesLeft -= int64(len(p))
-	} else {
-		t.requestKeyExchange()
-	}
-
-	if debugHandshake {
-		t.printPacket(p, false)
-	}
-
-	if first && p[0] != msgKexInit {
-		return nil, fmt.Errorf("ssh: first packet should be msgKexInit")
-	}
-
-	if p[0] != msgKexInit {
-		return p, nil
-	}
-
-	firstKex := t.sessionID == nil
-
-	kex := pendingKex{
-		done:      make(chan error, 1),
-		otherInit: p,
-	}
-	t.startKex <- &kex
-	err = <-kex.done
-
-	if debugHandshake {
-		log.Printf("%s exited key exchange (first %v), err %v", t.id(), firstKex, err)
-	}
-
-	if err != nil {
-		return nil, err
-	}
-
-	t.resetReadThresholds()
-
-	// By default, a key exchange is hidden from higher layers by
-	// translating it into msgIgnore.
-	successPacket := []byte{msgIgnore}
-	if firstKex {
-		// sendKexInit() for the first kex waits for
-		// msgNewKeys so the authentication process is
-		// guaranteed to happen over an encrypted transport.
-		successPacket = []byte{msgNewKeys}
-	}
-
-	return successPacket, nil
-}
-
-// sendKexInit sends a key change message.
-func (t *handshakeTransport) sendKexInit() error {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	if t.sentInitMsg != nil {
-		// kexInits may be sent either in response to the other side,
-		// or because our side wants to initiate a key change, so we
-		// may have already sent a kexInit. In that case, don't send a
-		// second kexInit.
-		return nil
-	}
-
-	msg := &kexInitMsg{
-		KexAlgos:                t.config.KeyExchanges,
-		CiphersClientServer:     t.config.Ciphers,
-		CiphersServerClient:     t.config.Ciphers,
-		MACsClientServer:        t.config.MACs,
-		MACsServerClient:        t.config.MACs,
-		CompressionClientServer: supportedCompressions,
-		CompressionServerClient: supportedCompressions,
-	}
-	io.ReadFull(rand.Reader, msg.Cookie[:])
-
-	if len(t.hostKeys) > 0 {
-		for _, k := range t.hostKeys {
-			msg.ServerHostKeyAlgos = append(
-				msg.ServerHostKeyAlgos, k.PublicKey().Type())
-		}
-	} else {
-		msg.ServerHostKeyAlgos = t.hostKeyAlgorithms
-	}
-	packet := Marshal(msg)
-
-	// writePacket destroys the contents, so save a copy.
-	packetCopy := make([]byte, len(packet))
-	copy(packetCopy, packet)
-
-	if err := t.pushPacket(packetCopy); err != nil {
-		return err
-	}
-
-	t.sentInitMsg = msg
-	t.sentInitPacket = packet
-
-	return nil
-}
-
-func (t *handshakeTransport) writePacket(p []byte) error {
-	switch p[0] {
-	case msgKexInit:
-		return errors.New("ssh: only handshakeTransport can send kexInit")
-	case msgNewKeys:
-		return errors.New("ssh: only handshakeTransport can send newKeys")
-	}
-
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	if t.writeError != nil {
-		return t.writeError
-	}
-
-	if t.sentInitMsg != nil {
-		// Copy the packet so the writer can reuse the buffer.
-		cp := make([]byte, len(p))
-		copy(cp, p)
-		t.pendingPackets = append(t.pendingPackets, cp)
-		return nil
-	}
-
-	if t.writeBytesLeft > 0 {
-		t.writeBytesLeft -= int64(len(p))
-	} else {
-		t.requestKeyExchange()
-	}
-
-	if t.writePacketsLeft > 0 {
-		t.writePacketsLeft--
-	} else {
-		t.requestKeyExchange()
-	}
-
-	if err := t.pushPacket(p); err != nil {
-		t.writeError = err
-	}
-
-	return nil
-}
-
-func (t *handshakeTransport) Close() error {
-	return t.conn.Close()
-}
-
-func (t *handshakeTransport) enterKeyExchange(otherInitPacket []byte) error {
-	if debugHandshake {
-		log.Printf("%s entered key exchange", t.id())
-	}
-
-	otherInit := &kexInitMsg{}
-	if err := Unmarshal(otherInitPacket, otherInit); err != nil {
-		return err
-	}
-
-	magics := handshakeMagics{
-		clientVersion: t.clientVersion,
-		serverVersion: t.serverVersion,
-		clientKexInit: otherInitPacket,
-		serverKexInit: t.sentInitPacket,
-	}
-
-	clientInit := otherInit
-	serverInit := t.sentInitMsg
-	if len(t.hostKeys) == 0 {
-		clientInit, serverInit = serverInit, clientInit
-
-		magics.clientKexInit = t.sentInitPacket
-		magics.serverKexInit = otherInitPacket
-	}
-
-	var err error
-	t.algorithms, err = findAgreedAlgorithms(clientInit, serverInit)
-	if err != nil {
-		return err
-	}
-
-	// We don't send FirstKexFollows, but we handle receiving it.
-	//
-	// RFC 4253 section 7 defines the kex and the agreement method for
-	// first_kex_packet_follows. It states that the guessed packet
-	// should be ignored if the "kex algorithm and/or the host
-	// key algorithm is guessed wrong (server and client have
-	// different preferred algorithm), or if any of the other
-	// algorithms cannot be agreed upon". The other algorithms have
-	// already been checked above so the kex algorithm and host key
-	// algorithm are checked here.
-	if otherInit.FirstKexFollows && (clientInit.KexAlgos[0] != serverInit.KexAlgos[0] || clientInit.ServerHostKeyAlgos[0] != serverInit.ServerHostKeyAlgos[0]) {
-		// other side sent a kex message for the wrong algorithm,
-		// which we have to ignore.
-		if _, err := t.conn.readPacket(); err != nil {
-			return err
-		}
-	}
-
-	kex, ok := kexAlgoMap[t.algorithms.kex]
-	if !ok {
-		return fmt.Errorf("ssh: unexpected key exchange algorithm %v", t.algorithms.kex)
-	}
-
-	var result *kexResult
-	if len(t.hostKeys) > 0 {
-		result, err = t.server(kex, t.algorithms, &magics)
-	} else {
-		result, err = t.client(kex, t.algorithms, &magics)
-	}
-
-	if err != nil {
-		return err
-	}
-
-	if t.sessionID == nil {
-		t.sessionID = result.H
-	}
-	result.SessionID = t.sessionID
-
-	if err := t.conn.prepareKeyChange(t.algorithms, result); err != nil {
-		return err
-	}
-	if err = t.conn.writePacket([]byte{msgNewKeys}); err != nil {
-		return err
-	}
-	if packet, err := t.conn.readPacket(); err != nil {
-		return err
-	} else if packet[0] != msgNewKeys {
-		return unexpectedMessageError(msgNewKeys, packet[0])
-	}
-
-	return nil
-}
-
-func (t *handshakeTransport) server(kex kexAlgorithm, algs *algorithms, magics *handshakeMagics) (*kexResult, error) {
-	var hostKey Signer
-	for _, k := range t.hostKeys {
-		if algs.hostKey == k.PublicKey().Type() {
-			hostKey = k
-		}
-	}
-
-	r, err := kex.Server(t.conn, t.config.Rand, magics, hostKey)
-	return r, err
-}
-
-func (t *handshakeTransport) client(kex kexAlgorithm, algs *algorithms, magics *handshakeMagics) (*kexResult, error) {
-	result, err := kex.Client(t.conn, t.config.Rand, magics)
-	if err != nil {
-		return nil, err
-	}
-
-	hostKey, err := ParsePublicKey(result.HostKey)
-	if err != nil {
-		return nil, err
-	}
-
-	if err := verifyHostKeySignature(hostKey, result); err != nil {
-		return nil, err
-	}
-
-	err = t.hostKeyCallback(t.dialAddress, t.remoteAddr, hostKey)
-	if err != nil {
-		return nil, err
-	}
-
-	return result, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/handshake_test.go b/vendor/golang.org/x/crypto/ssh/handshake_test.go
deleted file mode 100644
index 91d4935..0000000
--- a/vendor/golang.org/x/crypto/ssh/handshake_test.go
+++ /dev/null
@@ -1,559 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto/rand"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"reflect"
-	"runtime"
-	"strings"
-	"sync"
-	"testing"
-)
-
-type testChecker struct {
-	calls []string
-}
-
-func (t *testChecker) Check(dialAddr string, addr net.Addr, key PublicKey) error {
-	if dialAddr == "bad" {
-		return fmt.Errorf("dialAddr is bad")
-	}
-
-	if tcpAddr, ok := addr.(*net.TCPAddr); !ok || tcpAddr == nil {
-		return fmt.Errorf("testChecker: got %T want *net.TCPAddr", addr)
-	}
-
-	t.calls = append(t.calls, fmt.Sprintf("%s %v %s %x", dialAddr, addr, key.Type(), key.Marshal()))
-
-	return nil
-}
-
-// netPipe is analogous to net.Pipe, but it uses a real net.Conn, and
-// therefore is buffered (net.Pipe deadlocks if both sides start with
-// a write.)
-func netPipe() (net.Conn, net.Conn, error) {
-	listener, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		listener, err = net.Listen("tcp", "[::1]:0")
-		if err != nil {
-			return nil, nil, err
-		}
-	}
-	defer listener.Close()
-	c1, err := net.Dial("tcp", listener.Addr().String())
-	if err != nil {
-		return nil, nil, err
-	}
-
-	c2, err := listener.Accept()
-	if err != nil {
-		c1.Close()
-		return nil, nil, err
-	}
-
-	return c1, c2, nil
-}
-
-// noiseTransport inserts ignore messages to check that the read loop
-// and the key exchange filters out these messages.
-type noiseTransport struct {
-	keyingTransport
-}
-
-func (t *noiseTransport) writePacket(p []byte) error {
-	ignore := []byte{msgIgnore}
-	if err := t.keyingTransport.writePacket(ignore); err != nil {
-		return err
-	}
-	debug := []byte{msgDebug, 1, 2, 3}
-	if err := t.keyingTransport.writePacket(debug); err != nil {
-		return err
-	}
-
-	return t.keyingTransport.writePacket(p)
-}
-
-func addNoiseTransport(t keyingTransport) keyingTransport {
-	return &noiseTransport{t}
-}
-
-// handshakePair creates two handshakeTransports connected with each
-// other. If the noise argument is true, both transports will try to
-// confuse the other side by sending ignore and debug messages.
-func handshakePair(clientConf *ClientConfig, addr string, noise bool) (client *handshakeTransport, server *handshakeTransport, err error) {
-	a, b, err := netPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-
-	var trC, trS keyingTransport
-
-	trC = newTransport(a, rand.Reader, true)
-	trS = newTransport(b, rand.Reader, false)
-	if noise {
-		trC = addNoiseTransport(trC)
-		trS = addNoiseTransport(trS)
-	}
-	clientConf.SetDefaults()
-
-	v := []byte("version")
-	client = newClientTransport(trC, v, v, clientConf, addr, a.RemoteAddr())
-
-	serverConf := &ServerConfig{}
-	serverConf.AddHostKey(testSigners["ecdsa"])
-	serverConf.AddHostKey(testSigners["rsa"])
-	serverConf.SetDefaults()
-	server = newServerTransport(trS, v, v, serverConf)
-
-	if err := server.waitSession(); err != nil {
-		return nil, nil, fmt.Errorf("server.waitSession: %v", err)
-	}
-	if err := client.waitSession(); err != nil {
-		return nil, nil, fmt.Errorf("client.waitSession: %v", err)
-	}
-
-	return client, server, nil
-}
-
-func TestHandshakeBasic(t *testing.T) {
-	if runtime.GOOS == "plan9" {
-		t.Skip("see golang.org/issue/7237")
-	}
-
-	checker := &syncChecker{
-		waitCall: make(chan int, 10),
-		called:   make(chan int, 10),
-	}
-
-	checker.waitCall <- 1
-	trC, trS, err := handshakePair(&ClientConfig{HostKeyCallback: checker.Check}, "addr", false)
-	if err != nil {
-		t.Fatalf("handshakePair: %v", err)
-	}
-
-	defer trC.Close()
-	defer trS.Close()
-
-	// Let first kex complete normally.
-	<-checker.called
-
-	clientDone := make(chan int, 0)
-	gotHalf := make(chan int, 0)
-	const N = 20
-
-	go func() {
-		defer close(clientDone)
-		// Client writes a bunch of stuff, and does a key
-		// change in the middle. This should not confuse the
-		// handshake in progress. We do this twice, so we test
-		// that the packet buffer is reset correctly.
-		for i := 0; i < N; i++ {
-			p := []byte{msgRequestSuccess, byte(i)}
-			if err := trC.writePacket(p); err != nil {
-				t.Fatalf("sendPacket: %v", err)
-			}
-			if (i % 10) == 5 {
-				<-gotHalf
-				// halfway through, we request a key change.
-				trC.requestKeyExchange()
-
-				// Wait until we can be sure the key
-				// change has really started before we
-				// write more.
-				<-checker.called
-			}
-			if (i % 10) == 7 {
-				// write some packets until the kex
-				// completes, to test buffering of
-				// packets.
-				checker.waitCall <- 1
-			}
-		}
-	}()
-
-	// Server checks that client messages come in cleanly
-	i := 0
-	err = nil
-	for ; i < N; i++ {
-		var p []byte
-		p, err = trS.readPacket()
-		if err != nil {
-			break
-		}
-		if (i % 10) == 5 {
-			gotHalf <- 1
-		}
-
-		want := []byte{msgRequestSuccess, byte(i)}
-		if bytes.Compare(p, want) != 0 {
-			t.Errorf("message %d: got %v, want %v", i, p, want)
-		}
-	}
-	<-clientDone
-	if err != nil && err != io.EOF {
-		t.Fatalf("server error: %v", err)
-	}
-	if i != N {
-		t.Errorf("received %d messages, want 10.", i)
-	}
-
-	close(checker.called)
-	if _, ok := <-checker.called; ok {
-		// If all went well, we registered exactly 2 key changes: one
-		// that establishes the session, and one that we requested
-		// additionally.
-		t.Fatalf("got another host key checks after 2 handshakes")
-	}
-}
-
-func TestForceFirstKex(t *testing.T) {
-	// like handshakePair, but must access the keyingTransport.
-	checker := &testChecker{}
-	clientConf := &ClientConfig{HostKeyCallback: checker.Check}
-	a, b, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-
-	var trC, trS keyingTransport
-
-	trC = newTransport(a, rand.Reader, true)
-
-	// This is the disallowed packet:
-	trC.writePacket(Marshal(&serviceRequestMsg{serviceUserAuth}))
-
-	// Rest of the setup.
-	trS = newTransport(b, rand.Reader, false)
-	clientConf.SetDefaults()
-
-	v := []byte("version")
-	client := newClientTransport(trC, v, v, clientConf, "addr", a.RemoteAddr())
-
-	serverConf := &ServerConfig{}
-	serverConf.AddHostKey(testSigners["ecdsa"])
-	serverConf.AddHostKey(testSigners["rsa"])
-	serverConf.SetDefaults()
-	server := newServerTransport(trS, v, v, serverConf)
-
-	defer client.Close()
-	defer server.Close()
-
-	// We setup the initial key exchange, but the remote side
-	// tries to send serviceRequestMsg in cleartext, which is
-	// disallowed.
-
-	if err := server.waitSession(); err == nil {
-		t.Errorf("server first kex init should reject unexpected packet")
-	}
-}
-
-func TestHandshakeAutoRekeyWrite(t *testing.T) {
-	checker := &syncChecker{
-		called:   make(chan int, 10),
-		waitCall: nil,
-	}
-	clientConf := &ClientConfig{HostKeyCallback: checker.Check}
-	clientConf.RekeyThreshold = 500
-	trC, trS, err := handshakePair(clientConf, "addr", false)
-	if err != nil {
-		t.Fatalf("handshakePair: %v", err)
-	}
-	defer trC.Close()
-	defer trS.Close()
-
-	input := make([]byte, 251)
-	input[0] = msgRequestSuccess
-
-	done := make(chan int, 1)
-	const numPacket = 5
-	go func() {
-		defer close(done)
-		j := 0
-		for ; j < numPacket; j++ {
-			if p, err := trS.readPacket(); err != nil {
-				break
-			} else if !bytes.Equal(input, p) {
-				t.Errorf("got packet type %d, want %d", p[0], input[0])
-			}
-		}
-
-		if j != numPacket {
-			t.Errorf("got %d, want 5 messages", j)
-		}
-	}()
-
-	<-checker.called
-
-	for i := 0; i < numPacket; i++ {
-		p := make([]byte, len(input))
-		copy(p, input)
-		if err := trC.writePacket(p); err != nil {
-			t.Errorf("writePacket: %v", err)
-		}
-		if i == 2 {
-			// Make sure the kex is in progress.
-			<-checker.called
-		}
-
-	}
-	<-done
-}
-
-type syncChecker struct {
-	waitCall chan int
-	called   chan int
-}
-
-func (c *syncChecker) Check(dialAddr string, addr net.Addr, key PublicKey) error {
-	c.called <- 1
-	if c.waitCall != nil {
-		<-c.waitCall
-	}
-	return nil
-}
-
-func TestHandshakeAutoRekeyRead(t *testing.T) {
-	sync := &syncChecker{
-		called:   make(chan int, 2),
-		waitCall: nil,
-	}
-	clientConf := &ClientConfig{
-		HostKeyCallback: sync.Check,
-	}
-	clientConf.RekeyThreshold = 500
-
-	trC, trS, err := handshakePair(clientConf, "addr", false)
-	if err != nil {
-		t.Fatalf("handshakePair: %v", err)
-	}
-	defer trC.Close()
-	defer trS.Close()
-
-	packet := make([]byte, 501)
-	packet[0] = msgRequestSuccess
-	if err := trS.writePacket(packet); err != nil {
-		t.Fatalf("writePacket: %v", err)
-	}
-
-	// While we read out the packet, a key change will be
-	// initiated.
-	done := make(chan int, 1)
-	go func() {
-		defer close(done)
-		if _, err := trC.readPacket(); err != nil {
-			t.Fatalf("readPacket(client): %v", err)
-		}
-
-	}()
-
-	<-done
-	<-sync.called
-}
-
-// errorKeyingTransport generates errors after a given number of
-// read/write operations.
-type errorKeyingTransport struct {
-	packetConn
-	readLeft, writeLeft int
-}
-
-func (n *errorKeyingTransport) prepareKeyChange(*algorithms, *kexResult) error {
-	return nil
-}
-
-func (n *errorKeyingTransport) getSessionID() []byte {
-	return nil
-}
-
-func (n *errorKeyingTransport) writePacket(packet []byte) error {
-	if n.writeLeft == 0 {
-		n.Close()
-		return errors.New("barf")
-	}
-
-	n.writeLeft--
-	return n.packetConn.writePacket(packet)
-}
-
-func (n *errorKeyingTransport) readPacket() ([]byte, error) {
-	if n.readLeft == 0 {
-		n.Close()
-		return nil, errors.New("barf")
-	}
-
-	n.readLeft--
-	return n.packetConn.readPacket()
-}
-
-func TestHandshakeErrorHandlingRead(t *testing.T) {
-	for i := 0; i < 20; i++ {
-		testHandshakeErrorHandlingN(t, i, -1, false)
-	}
-}
-
-func TestHandshakeErrorHandlingWrite(t *testing.T) {
-	for i := 0; i < 20; i++ {
-		testHandshakeErrorHandlingN(t, -1, i, false)
-	}
-}
-
-func TestHandshakeErrorHandlingReadCoupled(t *testing.T) {
-	for i := 0; i < 20; i++ {
-		testHandshakeErrorHandlingN(t, i, -1, true)
-	}
-}
-
-func TestHandshakeErrorHandlingWriteCoupled(t *testing.T) {
-	for i := 0; i < 20; i++ {
-		testHandshakeErrorHandlingN(t, -1, i, true)
-	}
-}
-
-// testHandshakeErrorHandlingN runs handshakes, injecting errors. If
-// handshakeTransport deadlocks, the go runtime will detect it and
-// panic.
-func testHandshakeErrorHandlingN(t *testing.T, readLimit, writeLimit int, coupled bool) {
-	msg := Marshal(&serviceRequestMsg{strings.Repeat("x", int(minRekeyThreshold)/4)})
-
-	a, b := memPipe()
-	defer a.Close()
-	defer b.Close()
-
-	key := testSigners["ecdsa"]
-	serverConf := Config{RekeyThreshold: minRekeyThreshold}
-	serverConf.SetDefaults()
-	serverConn := newHandshakeTransport(&errorKeyingTransport{a, readLimit, writeLimit}, &serverConf, []byte{'a'}, []byte{'b'})
-	serverConn.hostKeys = []Signer{key}
-	go serverConn.readLoop()
-	go serverConn.kexLoop()
-
-	clientConf := Config{RekeyThreshold: 10 * minRekeyThreshold}
-	clientConf.SetDefaults()
-	clientConn := newHandshakeTransport(&errorKeyingTransport{b, -1, -1}, &clientConf, []byte{'a'}, []byte{'b'})
-	clientConn.hostKeyAlgorithms = []string{key.PublicKey().Type()}
-	clientConn.hostKeyCallback = InsecureIgnoreHostKey()
-	go clientConn.readLoop()
-	go clientConn.kexLoop()
-
-	var wg sync.WaitGroup
-
-	for _, hs := range []packetConn{serverConn, clientConn} {
-		if !coupled {
-			wg.Add(2)
-			go func(c packetConn) {
-				for i := 0; ; i++ {
-					str := fmt.Sprintf("%08x", i) + strings.Repeat("x", int(minRekeyThreshold)/4-8)
-					err := c.writePacket(Marshal(&serviceRequestMsg{str}))
-					if err != nil {
-						break
-					}
-				}
-				wg.Done()
-				c.Close()
-			}(hs)
-			go func(c packetConn) {
-				for {
-					_, err := c.readPacket()
-					if err != nil {
-						break
-					}
-				}
-				wg.Done()
-			}(hs)
-		} else {
-			wg.Add(1)
-			go func(c packetConn) {
-				for {
-					_, err := c.readPacket()
-					if err != nil {
-						break
-					}
-					if err := c.writePacket(msg); err != nil {
-						break
-					}
-
-				}
-				wg.Done()
-			}(hs)
-		}
-	}
-	wg.Wait()
-}
-
-func TestDisconnect(t *testing.T) {
-	if runtime.GOOS == "plan9" {
-		t.Skip("see golang.org/issue/7237")
-	}
-	checker := &testChecker{}
-	trC, trS, err := handshakePair(&ClientConfig{HostKeyCallback: checker.Check}, "addr", false)
-	if err != nil {
-		t.Fatalf("handshakePair: %v", err)
-	}
-
-	defer trC.Close()
-	defer trS.Close()
-
-	trC.writePacket([]byte{msgRequestSuccess, 0, 0})
-	errMsg := &disconnectMsg{
-		Reason:  42,
-		Message: "such is life",
-	}
-	trC.writePacket(Marshal(errMsg))
-	trC.writePacket([]byte{msgRequestSuccess, 0, 0})
-
-	packet, err := trS.readPacket()
-	if err != nil {
-		t.Fatalf("readPacket 1: %v", err)
-	}
-	if packet[0] != msgRequestSuccess {
-		t.Errorf("got packet %v, want packet type %d", packet, msgRequestSuccess)
-	}
-
-	_, err = trS.readPacket()
-	if err == nil {
-		t.Errorf("readPacket 2 succeeded")
-	} else if !reflect.DeepEqual(err, errMsg) {
-		t.Errorf("got error %#v, want %#v", err, errMsg)
-	}
-
-	_, err = trS.readPacket()
-	if err == nil {
-		t.Errorf("readPacket 3 succeeded")
-	}
-}
-
-func TestHandshakeRekeyDefault(t *testing.T) {
-	clientConf := &ClientConfig{
-		Config: Config{
-			Ciphers: []string{"aes128-ctr"},
-		},
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	trC, trS, err := handshakePair(clientConf, "addr", false)
-	if err != nil {
-		t.Fatalf("handshakePair: %v", err)
-	}
-	defer trC.Close()
-	defer trS.Close()
-
-	trC.writePacket([]byte{msgRequestSuccess, 0, 0})
-	trC.Close()
-
-	rgb := (1024 + trC.readBytesLeft) >> 30
-	wgb := (1024 + trC.writeBytesLeft) >> 30
-
-	if rgb != 64 {
-		t.Errorf("got rekey after %dG read, want 64G", rgb)
-	}
-	if wgb != 64 {
-		t.Errorf("got rekey after %dG write, want 64G", wgb)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/kex.go b/vendor/golang.org/x/crypto/ssh/kex.go
deleted file mode 100644
index f34bcc0..0000000
--- a/vendor/golang.org/x/crypto/ssh/kex.go
+++ /dev/null
@@ -1,540 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/subtle"
-	"errors"
-	"io"
-	"math/big"
-
-	"golang.org/x/crypto/curve25519"
-)
-
-const (
-	kexAlgoDH1SHA1          = "diffie-hellman-group1-sha1"
-	kexAlgoDH14SHA1         = "diffie-hellman-group14-sha1"
-	kexAlgoECDH256          = "ecdh-sha2-nistp256"
-	kexAlgoECDH384          = "ecdh-sha2-nistp384"
-	kexAlgoECDH521          = "ecdh-sha2-nistp521"
-	kexAlgoCurve25519SHA256 = "curve25519-sha256@libssh.org"
-)
-
-// kexResult captures the outcome of a key exchange.
-type kexResult struct {
-	// Session hash. See also RFC 4253, section 8.
-	H []byte
-
-	// Shared secret. See also RFC 4253, section 8.
-	K []byte
-
-	// Host key as hashed into H.
-	HostKey []byte
-
-	// Signature of H.
-	Signature []byte
-
-	// A cryptographic hash function that matches the security
-	// level of the key exchange algorithm. It is used for
-	// calculating H, and for deriving keys from H and K.
-	Hash crypto.Hash
-
-	// The session ID, which is the first H computed. This is used
-	// to derive key material inside the transport.
-	SessionID []byte
-}
-
-// handshakeMagics contains data that is always included in the
-// session hash.
-type handshakeMagics struct {
-	clientVersion, serverVersion []byte
-	clientKexInit, serverKexInit []byte
-}
-
-func (m *handshakeMagics) write(w io.Writer) {
-	writeString(w, m.clientVersion)
-	writeString(w, m.serverVersion)
-	writeString(w, m.clientKexInit)
-	writeString(w, m.serverKexInit)
-}
-
-// kexAlgorithm abstracts different key exchange algorithms.
-type kexAlgorithm interface {
-	// Server runs server-side key agreement, signing the result
-	// with a hostkey.
-	Server(p packetConn, rand io.Reader, magics *handshakeMagics, s Signer) (*kexResult, error)
-
-	// Client runs the client-side key agreement. Caller is
-	// responsible for verifying the host key signature.
-	Client(p packetConn, rand io.Reader, magics *handshakeMagics) (*kexResult, error)
-}
-
-// dhGroup is a multiplicative group suitable for implementing Diffie-Hellman key agreement.
-type dhGroup struct {
-	g, p, pMinus1 *big.Int
-}
-
-func (group *dhGroup) diffieHellman(theirPublic, myPrivate *big.Int) (*big.Int, error) {
-	if theirPublic.Cmp(bigOne) <= 0 || theirPublic.Cmp(group.pMinus1) >= 0 {
-		return nil, errors.New("ssh: DH parameter out of bounds")
-	}
-	return new(big.Int).Exp(theirPublic, myPrivate, group.p), nil
-}
-
-func (group *dhGroup) Client(c packetConn, randSource io.Reader, magics *handshakeMagics) (*kexResult, error) {
-	hashFunc := crypto.SHA1
-
-	var x *big.Int
-	for {
-		var err error
-		if x, err = rand.Int(randSource, group.pMinus1); err != nil {
-			return nil, err
-		}
-		if x.Sign() > 0 {
-			break
-		}
-	}
-
-	X := new(big.Int).Exp(group.g, x, group.p)
-	kexDHInit := kexDHInitMsg{
-		X: X,
-	}
-	if err := c.writePacket(Marshal(&kexDHInit)); err != nil {
-		return nil, err
-	}
-
-	packet, err := c.readPacket()
-	if err != nil {
-		return nil, err
-	}
-
-	var kexDHReply kexDHReplyMsg
-	if err = Unmarshal(packet, &kexDHReply); err != nil {
-		return nil, err
-	}
-
-	ki, err := group.diffieHellman(kexDHReply.Y, x)
-	if err != nil {
-		return nil, err
-	}
-
-	h := hashFunc.New()
-	magics.write(h)
-	writeString(h, kexDHReply.HostKey)
-	writeInt(h, X)
-	writeInt(h, kexDHReply.Y)
-	K := make([]byte, intLength(ki))
-	marshalInt(K, ki)
-	h.Write(K)
-
-	return &kexResult{
-		H:         h.Sum(nil),
-		K:         K,
-		HostKey:   kexDHReply.HostKey,
-		Signature: kexDHReply.Signature,
-		Hash:      crypto.SHA1,
-	}, nil
-}
-
-func (group *dhGroup) Server(c packetConn, randSource io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
-	hashFunc := crypto.SHA1
-	packet, err := c.readPacket()
-	if err != nil {
-		return
-	}
-	var kexDHInit kexDHInitMsg
-	if err = Unmarshal(packet, &kexDHInit); err != nil {
-		return
-	}
-
-	var y *big.Int
-	for {
-		if y, err = rand.Int(randSource, group.pMinus1); err != nil {
-			return
-		}
-		if y.Sign() > 0 {
-			break
-		}
-	}
-
-	Y := new(big.Int).Exp(group.g, y, group.p)
-	ki, err := group.diffieHellman(kexDHInit.X, y)
-	if err != nil {
-		return nil, err
-	}
-
-	hostKeyBytes := priv.PublicKey().Marshal()
-
-	h := hashFunc.New()
-	magics.write(h)
-	writeString(h, hostKeyBytes)
-	writeInt(h, kexDHInit.X)
-	writeInt(h, Y)
-
-	K := make([]byte, intLength(ki))
-	marshalInt(K, ki)
-	h.Write(K)
-
-	H := h.Sum(nil)
-
-	// H is already a hash, but the hostkey signing will apply its
-	// own key-specific hash algorithm.
-	sig, err := signAndMarshal(priv, randSource, H)
-	if err != nil {
-		return nil, err
-	}
-
-	kexDHReply := kexDHReplyMsg{
-		HostKey:   hostKeyBytes,
-		Y:         Y,
-		Signature: sig,
-	}
-	packet = Marshal(&kexDHReply)
-
-	err = c.writePacket(packet)
-	return &kexResult{
-		H:         H,
-		K:         K,
-		HostKey:   hostKeyBytes,
-		Signature: sig,
-		Hash:      crypto.SHA1,
-	}, nil
-}
-
-// ecdh performs Elliptic Curve Diffie-Hellman key exchange as
-// described in RFC 5656, section 4.
-type ecdh struct {
-	curve elliptic.Curve
-}
-
-func (kex *ecdh) Client(c packetConn, rand io.Reader, magics *handshakeMagics) (*kexResult, error) {
-	ephKey, err := ecdsa.GenerateKey(kex.curve, rand)
-	if err != nil {
-		return nil, err
-	}
-
-	kexInit := kexECDHInitMsg{
-		ClientPubKey: elliptic.Marshal(kex.curve, ephKey.PublicKey.X, ephKey.PublicKey.Y),
-	}
-
-	serialized := Marshal(&kexInit)
-	if err := c.writePacket(serialized); err != nil {
-		return nil, err
-	}
-
-	packet, err := c.readPacket()
-	if err != nil {
-		return nil, err
-	}
-
-	var reply kexECDHReplyMsg
-	if err = Unmarshal(packet, &reply); err != nil {
-		return nil, err
-	}
-
-	x, y, err := unmarshalECKey(kex.curve, reply.EphemeralPubKey)
-	if err != nil {
-		return nil, err
-	}
-
-	// generate shared secret
-	secret, _ := kex.curve.ScalarMult(x, y, ephKey.D.Bytes())
-
-	h := ecHash(kex.curve).New()
-	magics.write(h)
-	writeString(h, reply.HostKey)
-	writeString(h, kexInit.ClientPubKey)
-	writeString(h, reply.EphemeralPubKey)
-	K := make([]byte, intLength(secret))
-	marshalInt(K, secret)
-	h.Write(K)
-
-	return &kexResult{
-		H:         h.Sum(nil),
-		K:         K,
-		HostKey:   reply.HostKey,
-		Signature: reply.Signature,
-		Hash:      ecHash(kex.curve),
-	}, nil
-}
-
-// unmarshalECKey parses and checks an EC key.
-func unmarshalECKey(curve elliptic.Curve, pubkey []byte) (x, y *big.Int, err error) {
-	x, y = elliptic.Unmarshal(curve, pubkey)
-	if x == nil {
-		return nil, nil, errors.New("ssh: elliptic.Unmarshal failure")
-	}
-	if !validateECPublicKey(curve, x, y) {
-		return nil, nil, errors.New("ssh: public key not on curve")
-	}
-	return x, y, nil
-}
-
-// validateECPublicKey checks that the point is a valid public key for
-// the given curve. See [SEC1], 3.2.2
-func validateECPublicKey(curve elliptic.Curve, x, y *big.Int) bool {
-	if x.Sign() == 0 && y.Sign() == 0 {
-		return false
-	}
-
-	if x.Cmp(curve.Params().P) >= 0 {
-		return false
-	}
-
-	if y.Cmp(curve.Params().P) >= 0 {
-		return false
-	}
-
-	if !curve.IsOnCurve(x, y) {
-		return false
-	}
-
-	// We don't check if N * PubKey == 0, since
-	//
-	// - the NIST curves have cofactor = 1, so this is implicit.
-	// (We don't foresee an implementation that supports non NIST
-	// curves)
-	//
-	// - for ephemeral keys, we don't need to worry about small
-	// subgroup attacks.
-	return true
-}
-
-func (kex *ecdh) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
-	packet, err := c.readPacket()
-	if err != nil {
-		return nil, err
-	}
-
-	var kexECDHInit kexECDHInitMsg
-	if err = Unmarshal(packet, &kexECDHInit); err != nil {
-		return nil, err
-	}
-
-	clientX, clientY, err := unmarshalECKey(kex.curve, kexECDHInit.ClientPubKey)
-	if err != nil {
-		return nil, err
-	}
-
-	// We could cache this key across multiple users/multiple
-	// connection attempts, but the benefit is small. OpenSSH
-	// generates a new key for each incoming connection.
-	ephKey, err := ecdsa.GenerateKey(kex.curve, rand)
-	if err != nil {
-		return nil, err
-	}
-
-	hostKeyBytes := priv.PublicKey().Marshal()
-
-	serializedEphKey := elliptic.Marshal(kex.curve, ephKey.PublicKey.X, ephKey.PublicKey.Y)
-
-	// generate shared secret
-	secret, _ := kex.curve.ScalarMult(clientX, clientY, ephKey.D.Bytes())
-
-	h := ecHash(kex.curve).New()
-	magics.write(h)
-	writeString(h, hostKeyBytes)
-	writeString(h, kexECDHInit.ClientPubKey)
-	writeString(h, serializedEphKey)
-
-	K := make([]byte, intLength(secret))
-	marshalInt(K, secret)
-	h.Write(K)
-
-	H := h.Sum(nil)
-
-	// H is already a hash, but the hostkey signing will apply its
-	// own key-specific hash algorithm.
-	sig, err := signAndMarshal(priv, rand, H)
-	if err != nil {
-		return nil, err
-	}
-
-	reply := kexECDHReplyMsg{
-		EphemeralPubKey: serializedEphKey,
-		HostKey:         hostKeyBytes,
-		Signature:       sig,
-	}
-
-	serialized := Marshal(&reply)
-	if err := c.writePacket(serialized); err != nil {
-		return nil, err
-	}
-
-	return &kexResult{
-		H:         H,
-		K:         K,
-		HostKey:   reply.HostKey,
-		Signature: sig,
-		Hash:      ecHash(kex.curve),
-	}, nil
-}
-
-var kexAlgoMap = map[string]kexAlgorithm{}
-
-func init() {
-	// This is the group called diffie-hellman-group1-sha1 in RFC
-	// 4253 and Oakley Group 2 in RFC 2409.
-	p, _ := new(big.Int).SetString("FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7EDEE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF", 16)
-	kexAlgoMap[kexAlgoDH1SHA1] = &dhGroup{
-		g:       new(big.Int).SetInt64(2),
-		p:       p,
-		pMinus1: new(big.Int).Sub(p, bigOne),
-	}
-
-	// This is the group called diffie-hellman-group14-sha1 in RFC
-	// 4253 and Oakley Group 14 in RFC 3526.
-	p, _ = new(big.Int).SetString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
-
-	kexAlgoMap[kexAlgoDH14SHA1] = &dhGroup{
-		g:       new(big.Int).SetInt64(2),
-		p:       p,
-		pMinus1: new(big.Int).Sub(p, bigOne),
-	}
-
-	kexAlgoMap[kexAlgoECDH521] = &ecdh{elliptic.P521()}
-	kexAlgoMap[kexAlgoECDH384] = &ecdh{elliptic.P384()}
-	kexAlgoMap[kexAlgoECDH256] = &ecdh{elliptic.P256()}
-	kexAlgoMap[kexAlgoCurve25519SHA256] = &curve25519sha256{}
-}
-
-// curve25519sha256 implements the curve25519-sha256@libssh.org key
-// agreement protocol, as described in
-// https://git.libssh.org/projects/libssh.git/tree/doc/curve25519-sha256@libssh.org.txt
-type curve25519sha256 struct{}
-
-type curve25519KeyPair struct {
-	priv [32]byte
-	pub  [32]byte
-}
-
-func (kp *curve25519KeyPair) generate(rand io.Reader) error {
-	if _, err := io.ReadFull(rand, kp.priv[:]); err != nil {
-		return err
-	}
-	curve25519.ScalarBaseMult(&kp.pub, &kp.priv)
-	return nil
-}
-
-// curve25519Zeros is just an array of 32 zero bytes so that we have something
-// convenient to compare against in order to reject curve25519 points with the
-// wrong order.
-var curve25519Zeros [32]byte
-
-func (kex *curve25519sha256) Client(c packetConn, rand io.Reader, magics *handshakeMagics) (*kexResult, error) {
-	var kp curve25519KeyPair
-	if err := kp.generate(rand); err != nil {
-		return nil, err
-	}
-	if err := c.writePacket(Marshal(&kexECDHInitMsg{kp.pub[:]})); err != nil {
-		return nil, err
-	}
-
-	packet, err := c.readPacket()
-	if err != nil {
-		return nil, err
-	}
-
-	var reply kexECDHReplyMsg
-	if err = Unmarshal(packet, &reply); err != nil {
-		return nil, err
-	}
-	if len(reply.EphemeralPubKey) != 32 {
-		return nil, errors.New("ssh: peer's curve25519 public value has wrong length")
-	}
-
-	var servPub, secret [32]byte
-	copy(servPub[:], reply.EphemeralPubKey)
-	curve25519.ScalarMult(&secret, &kp.priv, &servPub)
-	if subtle.ConstantTimeCompare(secret[:], curve25519Zeros[:]) == 1 {
-		return nil, errors.New("ssh: peer's curve25519 public value has wrong order")
-	}
-
-	h := crypto.SHA256.New()
-	magics.write(h)
-	writeString(h, reply.HostKey)
-	writeString(h, kp.pub[:])
-	writeString(h, reply.EphemeralPubKey)
-
-	ki := new(big.Int).SetBytes(secret[:])
-	K := make([]byte, intLength(ki))
-	marshalInt(K, ki)
-	h.Write(K)
-
-	return &kexResult{
-		H:         h.Sum(nil),
-		K:         K,
-		HostKey:   reply.HostKey,
-		Signature: reply.Signature,
-		Hash:      crypto.SHA256,
-	}, nil
-}
-
-func (kex *curve25519sha256) Server(c packetConn, rand io.Reader, magics *handshakeMagics, priv Signer) (result *kexResult, err error) {
-	packet, err := c.readPacket()
-	if err != nil {
-		return
-	}
-	var kexInit kexECDHInitMsg
-	if err = Unmarshal(packet, &kexInit); err != nil {
-		return
-	}
-
-	if len(kexInit.ClientPubKey) != 32 {
-		return nil, errors.New("ssh: peer's curve25519 public value has wrong length")
-	}
-
-	var kp curve25519KeyPair
-	if err := kp.generate(rand); err != nil {
-		return nil, err
-	}
-
-	var clientPub, secret [32]byte
-	copy(clientPub[:], kexInit.ClientPubKey)
-	curve25519.ScalarMult(&secret, &kp.priv, &clientPub)
-	if subtle.ConstantTimeCompare(secret[:], curve25519Zeros[:]) == 1 {
-		return nil, errors.New("ssh: peer's curve25519 public value has wrong order")
-	}
-
-	hostKeyBytes := priv.PublicKey().Marshal()
-
-	h := crypto.SHA256.New()
-	magics.write(h)
-	writeString(h, hostKeyBytes)
-	writeString(h, kexInit.ClientPubKey)
-	writeString(h, kp.pub[:])
-
-	ki := new(big.Int).SetBytes(secret[:])
-	K := make([]byte, intLength(ki))
-	marshalInt(K, ki)
-	h.Write(K)
-
-	H := h.Sum(nil)
-
-	sig, err := signAndMarshal(priv, rand, H)
-	if err != nil {
-		return nil, err
-	}
-
-	reply := kexECDHReplyMsg{
-		EphemeralPubKey: kp.pub[:],
-		HostKey:         hostKeyBytes,
-		Signature:       sig,
-	}
-	if err := c.writePacket(Marshal(&reply)); err != nil {
-		return nil, err
-	}
-	return &kexResult{
-		H:         H,
-		K:         K,
-		HostKey:   hostKeyBytes,
-		Signature: sig,
-		Hash:      crypto.SHA256,
-	}, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/kex_test.go b/vendor/golang.org/x/crypto/ssh/kex_test.go
deleted file mode 100644
index 12ca0ac..0000000
--- a/vendor/golang.org/x/crypto/ssh/kex_test.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-// Key exchange tests.
-
-import (
-	"crypto/rand"
-	"reflect"
-	"testing"
-)
-
-func TestKexes(t *testing.T) {
-	type kexResultErr struct {
-		result *kexResult
-		err    error
-	}
-
-	for name, kex := range kexAlgoMap {
-		a, b := memPipe()
-
-		s := make(chan kexResultErr, 1)
-		c := make(chan kexResultErr, 1)
-		var magics handshakeMagics
-		go func() {
-			r, e := kex.Client(a, rand.Reader, &magics)
-			a.Close()
-			c <- kexResultErr{r, e}
-		}()
-		go func() {
-			r, e := kex.Server(b, rand.Reader, &magics, testSigners["ecdsa"])
-			b.Close()
-			s <- kexResultErr{r, e}
-		}()
-
-		clientRes := <-c
-		serverRes := <-s
-		if clientRes.err != nil {
-			t.Errorf("client: %v", clientRes.err)
-		}
-		if serverRes.err != nil {
-			t.Errorf("server: %v", serverRes.err)
-		}
-		if !reflect.DeepEqual(clientRes.result, serverRes.result) {
-			t.Errorf("kex %q: mismatch %#v, %#v", name, clientRes.result, serverRes.result)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/keys.go b/vendor/golang.org/x/crypto/ssh/keys.go
deleted file mode 100644
index 73697de..0000000
--- a/vendor/golang.org/x/crypto/ssh/keys.go
+++ /dev/null
@@ -1,1032 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/md5"
-	"crypto/rsa"
-	"crypto/sha256"
-	"crypto/x509"
-	"encoding/asn1"
-	"encoding/base64"
-	"encoding/hex"
-	"encoding/pem"
-	"errors"
-	"fmt"
-	"io"
-	"math/big"
-	"strings"
-
-	"golang.org/x/crypto/ed25519"
-)
-
-// These constants represent the algorithm names for key types supported by this
-// package.
-const (
-	KeyAlgoRSA      = "ssh-rsa"
-	KeyAlgoDSA      = "ssh-dss"
-	KeyAlgoECDSA256 = "ecdsa-sha2-nistp256"
-	KeyAlgoECDSA384 = "ecdsa-sha2-nistp384"
-	KeyAlgoECDSA521 = "ecdsa-sha2-nistp521"
-	KeyAlgoED25519  = "ssh-ed25519"
-)
-
-// parsePubKey parses a public key of the given algorithm.
-// Use ParsePublicKey for keys with prepended algorithm.
-func parsePubKey(in []byte, algo string) (pubKey PublicKey, rest []byte, err error) {
-	switch algo {
-	case KeyAlgoRSA:
-		return parseRSA(in)
-	case KeyAlgoDSA:
-		return parseDSA(in)
-	case KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521:
-		return parseECDSA(in)
-	case KeyAlgoED25519:
-		return parseED25519(in)
-	case CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01, CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01:
-		cert, err := parseCert(in, certToPrivAlgo(algo))
-		if err != nil {
-			return nil, nil, err
-		}
-		return cert, nil, nil
-	}
-	return nil, nil, fmt.Errorf("ssh: unknown key algorithm: %v", algo)
-}
-
-// parseAuthorizedKey parses a public key in OpenSSH authorized_keys format
-// (see sshd(8) manual page) once the options and key type fields have been
-// removed.
-func parseAuthorizedKey(in []byte) (out PublicKey, comment string, err error) {
-	in = bytes.TrimSpace(in)
-
-	i := bytes.IndexAny(in, " \t")
-	if i == -1 {
-		i = len(in)
-	}
-	base64Key := in[:i]
-
-	key := make([]byte, base64.StdEncoding.DecodedLen(len(base64Key)))
-	n, err := base64.StdEncoding.Decode(key, base64Key)
-	if err != nil {
-		return nil, "", err
-	}
-	key = key[:n]
-	out, err = ParsePublicKey(key)
-	if err != nil {
-		return nil, "", err
-	}
-	comment = string(bytes.TrimSpace(in[i:]))
-	return out, comment, nil
-}
-
-// ParseKnownHosts parses an entry in the format of the known_hosts file.
-//
-// The known_hosts format is documented in the sshd(8) manual page. This
-// function will parse a single entry from in. On successful return, marker
-// will contain the optional marker value (i.e. "cert-authority" or "revoked")
-// or else be empty, hosts will contain the hosts that this entry matches,
-// pubKey will contain the public key and comment will contain any trailing
-// comment at the end of the line. See the sshd(8) manual page for the various
-// forms that a host string can take.
-//
-// The unparsed remainder of the input will be returned in rest. This function
-// can be called repeatedly to parse multiple entries.
-//
-// If no entries were found in the input then err will be io.EOF. Otherwise a
-// non-nil err value indicates a parse error.
-func ParseKnownHosts(in []byte) (marker string, hosts []string, pubKey PublicKey, comment string, rest []byte, err error) {
-	for len(in) > 0 {
-		end := bytes.IndexByte(in, '\n')
-		if end != -1 {
-			rest = in[end+1:]
-			in = in[:end]
-		} else {
-			rest = nil
-		}
-
-		end = bytes.IndexByte(in, '\r')
-		if end != -1 {
-			in = in[:end]
-		}
-
-		in = bytes.TrimSpace(in)
-		if len(in) == 0 || in[0] == '#' {
-			in = rest
-			continue
-		}
-
-		i := bytes.IndexAny(in, " \t")
-		if i == -1 {
-			in = rest
-			continue
-		}
-
-		// Strip out the beginning of the known_host key.
-		// This is either an optional marker or a (set of) hostname(s).
-		keyFields := bytes.Fields(in)
-		if len(keyFields) < 3 || len(keyFields) > 5 {
-			return "", nil, nil, "", nil, errors.New("ssh: invalid entry in known_hosts data")
-		}
-
-		// keyFields[0] is either "@cert-authority", "@revoked" or a comma separated
-		// list of hosts
-		marker := ""
-		if keyFields[0][0] == '@' {
-			marker = string(keyFields[0][1:])
-			keyFields = keyFields[1:]
-		}
-
-		hosts := string(keyFields[0])
-		// keyFields[1] contains the key type (e.g. “ssh-rsa”).
-		// However, that information is duplicated inside the
-		// base64-encoded key and so is ignored here.
-
-		key := bytes.Join(keyFields[2:], []byte(" "))
-		if pubKey, comment, err = parseAuthorizedKey(key); err != nil {
-			return "", nil, nil, "", nil, err
-		}
-
-		return marker, strings.Split(hosts, ","), pubKey, comment, rest, nil
-	}
-
-	return "", nil, nil, "", nil, io.EOF
-}
-
-// ParseAuthorizedKeys parses a public key from an authorized_keys
-// file used in OpenSSH according to the sshd(8) manual page.
-func ParseAuthorizedKey(in []byte) (out PublicKey, comment string, options []string, rest []byte, err error) {
-	for len(in) > 0 {
-		end := bytes.IndexByte(in, '\n')
-		if end != -1 {
-			rest = in[end+1:]
-			in = in[:end]
-		} else {
-			rest = nil
-		}
-
-		end = bytes.IndexByte(in, '\r')
-		if end != -1 {
-			in = in[:end]
-		}
-
-		in = bytes.TrimSpace(in)
-		if len(in) == 0 || in[0] == '#' {
-			in = rest
-			continue
-		}
-
-		i := bytes.IndexAny(in, " \t")
-		if i == -1 {
-			in = rest
-			continue
-		}
-
-		if out, comment, err = parseAuthorizedKey(in[i:]); err == nil {
-			return out, comment, options, rest, nil
-		}
-
-		// No key type recognised. Maybe there's an options field at
-		// the beginning.
-		var b byte
-		inQuote := false
-		var candidateOptions []string
-		optionStart := 0
-		for i, b = range in {
-			isEnd := !inQuote && (b == ' ' || b == '\t')
-			if (b == ',' && !inQuote) || isEnd {
-				if i-optionStart > 0 {
-					candidateOptions = append(candidateOptions, string(in[optionStart:i]))
-				}
-				optionStart = i + 1
-			}
-			if isEnd {
-				break
-			}
-			if b == '"' && (i == 0 || (i > 0 && in[i-1] != '\\')) {
-				inQuote = !inQuote
-			}
-		}
-		for i < len(in) && (in[i] == ' ' || in[i] == '\t') {
-			i++
-		}
-		if i == len(in) {
-			// Invalid line: unmatched quote
-			in = rest
-			continue
-		}
-
-		in = in[i:]
-		i = bytes.IndexAny(in, " \t")
-		if i == -1 {
-			in = rest
-			continue
-		}
-
-		if out, comment, err = parseAuthorizedKey(in[i:]); err == nil {
-			options = candidateOptions
-			return out, comment, options, rest, nil
-		}
-
-		in = rest
-		continue
-	}
-
-	return nil, "", nil, nil, errors.New("ssh: no key found")
-}
-
-// ParsePublicKey parses an SSH public key formatted for use in
-// the SSH wire protocol according to RFC 4253, section 6.6.
-func ParsePublicKey(in []byte) (out PublicKey, err error) {
-	algo, in, ok := parseString(in)
-	if !ok {
-		return nil, errShortRead
-	}
-	var rest []byte
-	out, rest, err = parsePubKey(in, string(algo))
-	if len(rest) > 0 {
-		return nil, errors.New("ssh: trailing junk in public key")
-	}
-
-	return out, err
-}
-
-// MarshalAuthorizedKey serializes key for inclusion in an OpenSSH
-// authorized_keys file. The return value ends with newline.
-func MarshalAuthorizedKey(key PublicKey) []byte {
-	b := &bytes.Buffer{}
-	b.WriteString(key.Type())
-	b.WriteByte(' ')
-	e := base64.NewEncoder(base64.StdEncoding, b)
-	e.Write(key.Marshal())
-	e.Close()
-	b.WriteByte('\n')
-	return b.Bytes()
-}
-
-// PublicKey is an abstraction of different types of public keys.
-type PublicKey interface {
-	// Type returns the key's type, e.g. "ssh-rsa".
-	Type() string
-
-	// Marshal returns the serialized key data in SSH wire format,
-	// with the name prefix. To unmarshal the returned data, use
-	// the ParsePublicKey function.
-	Marshal() []byte
-
-	// Verify that sig is a signature on the given data using this
-	// key. This function will hash the data appropriately first.
-	Verify(data []byte, sig *Signature) error
-}
-
-// CryptoPublicKey, if implemented by a PublicKey,
-// returns the underlying crypto.PublicKey form of the key.
-type CryptoPublicKey interface {
-	CryptoPublicKey() crypto.PublicKey
-}
-
-// A Signer can create signatures that verify against a public key.
-type Signer interface {
-	// PublicKey returns an associated PublicKey instance.
-	PublicKey() PublicKey
-
-	// Sign returns raw signature for the given data. This method
-	// will apply the hash specified for the keytype to the data.
-	Sign(rand io.Reader, data []byte) (*Signature, error)
-}
-
-type rsaPublicKey rsa.PublicKey
-
-func (r *rsaPublicKey) Type() string {
-	return "ssh-rsa"
-}
-
-// parseRSA parses an RSA key according to RFC 4253, section 6.6.
-func parseRSA(in []byte) (out PublicKey, rest []byte, err error) {
-	var w struct {
-		E    *big.Int
-		N    *big.Int
-		Rest []byte `ssh:"rest"`
-	}
-	if err := Unmarshal(in, &w); err != nil {
-		return nil, nil, err
-	}
-
-	if w.E.BitLen() > 24 {
-		return nil, nil, errors.New("ssh: exponent too large")
-	}
-	e := w.E.Int64()
-	if e < 3 || e&1 == 0 {
-		return nil, nil, errors.New("ssh: incorrect exponent")
-	}
-
-	var key rsa.PublicKey
-	key.E = int(e)
-	key.N = w.N
-	return (*rsaPublicKey)(&key), w.Rest, nil
-}
-
-func (r *rsaPublicKey) Marshal() []byte {
-	e := new(big.Int).SetInt64(int64(r.E))
-	// RSA publickey struct layout should match the struct used by
-	// parseRSACert in the x/crypto/ssh/agent package.
-	wirekey := struct {
-		Name string
-		E    *big.Int
-		N    *big.Int
-	}{
-		KeyAlgoRSA,
-		e,
-		r.N,
-	}
-	return Marshal(&wirekey)
-}
-
-func (r *rsaPublicKey) Verify(data []byte, sig *Signature) error {
-	if sig.Format != r.Type() {
-		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, r.Type())
-	}
-	h := crypto.SHA1.New()
-	h.Write(data)
-	digest := h.Sum(nil)
-	return rsa.VerifyPKCS1v15((*rsa.PublicKey)(r), crypto.SHA1, digest, sig.Blob)
-}
-
-func (r *rsaPublicKey) CryptoPublicKey() crypto.PublicKey {
-	return (*rsa.PublicKey)(r)
-}
-
-type dsaPublicKey dsa.PublicKey
-
-func (k *dsaPublicKey) Type() string {
-	return "ssh-dss"
-}
-
-func checkDSAParams(param *dsa.Parameters) error {
-	// SSH specifies FIPS 186-2, which only provided a single size
-	// (1024 bits) DSA key. FIPS 186-3 allows for larger key
-	// sizes, which would confuse SSH.
-	if l := param.P.BitLen(); l != 1024 {
-		return fmt.Errorf("ssh: unsupported DSA key size %d", l)
-	}
-
-	return nil
-}
-
-// parseDSA parses an DSA key according to RFC 4253, section 6.6.
-func parseDSA(in []byte) (out PublicKey, rest []byte, err error) {
-	var w struct {
-		P, Q, G, Y *big.Int
-		Rest       []byte `ssh:"rest"`
-	}
-	if err := Unmarshal(in, &w); err != nil {
-		return nil, nil, err
-	}
-
-	param := dsa.Parameters{
-		P: w.P,
-		Q: w.Q,
-		G: w.G,
-	}
-	if err := checkDSAParams(&param); err != nil {
-		return nil, nil, err
-	}
-
-	key := &dsaPublicKey{
-		Parameters: param,
-		Y:          w.Y,
-	}
-	return key, w.Rest, nil
-}
-
-func (k *dsaPublicKey) Marshal() []byte {
-	// DSA publickey struct layout should match the struct used by
-	// parseDSACert in the x/crypto/ssh/agent package.
-	w := struct {
-		Name       string
-		P, Q, G, Y *big.Int
-	}{
-		k.Type(),
-		k.P,
-		k.Q,
-		k.G,
-		k.Y,
-	}
-
-	return Marshal(&w)
-}
-
-func (k *dsaPublicKey) Verify(data []byte, sig *Signature) error {
-	if sig.Format != k.Type() {
-		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
-	}
-	h := crypto.SHA1.New()
-	h.Write(data)
-	digest := h.Sum(nil)
-
-	// Per RFC 4253, section 6.6,
-	// The value for 'dss_signature_blob' is encoded as a string containing
-	// r, followed by s (which are 160-bit integers, without lengths or
-	// padding, unsigned, and in network byte order).
-	// For DSS purposes, sig.Blob should be exactly 40 bytes in length.
-	if len(sig.Blob) != 40 {
-		return errors.New("ssh: DSA signature parse error")
-	}
-	r := new(big.Int).SetBytes(sig.Blob[:20])
-	s := new(big.Int).SetBytes(sig.Blob[20:])
-	if dsa.Verify((*dsa.PublicKey)(k), digest, r, s) {
-		return nil
-	}
-	return errors.New("ssh: signature did not verify")
-}
-
-func (k *dsaPublicKey) CryptoPublicKey() crypto.PublicKey {
-	return (*dsa.PublicKey)(k)
-}
-
-type dsaPrivateKey struct {
-	*dsa.PrivateKey
-}
-
-func (k *dsaPrivateKey) PublicKey() PublicKey {
-	return (*dsaPublicKey)(&k.PrivateKey.PublicKey)
-}
-
-func (k *dsaPrivateKey) Sign(rand io.Reader, data []byte) (*Signature, error) {
-	h := crypto.SHA1.New()
-	h.Write(data)
-	digest := h.Sum(nil)
-	r, s, err := dsa.Sign(rand, k.PrivateKey, digest)
-	if err != nil {
-		return nil, err
-	}
-
-	sig := make([]byte, 40)
-	rb := r.Bytes()
-	sb := s.Bytes()
-
-	copy(sig[20-len(rb):20], rb)
-	copy(sig[40-len(sb):], sb)
-
-	return &Signature{
-		Format: k.PublicKey().Type(),
-		Blob:   sig,
-	}, nil
-}
-
-type ecdsaPublicKey ecdsa.PublicKey
-
-func (k *ecdsaPublicKey) Type() string {
-	return "ecdsa-sha2-" + k.nistID()
-}
-
-func (k *ecdsaPublicKey) nistID() string {
-	switch k.Params().BitSize {
-	case 256:
-		return "nistp256"
-	case 384:
-		return "nistp384"
-	case 521:
-		return "nistp521"
-	}
-	panic("ssh: unsupported ecdsa key size")
-}
-
-type ed25519PublicKey ed25519.PublicKey
-
-func (k ed25519PublicKey) Type() string {
-	return KeyAlgoED25519
-}
-
-func parseED25519(in []byte) (out PublicKey, rest []byte, err error) {
-	var w struct {
-		KeyBytes []byte
-		Rest     []byte `ssh:"rest"`
-	}
-
-	if err := Unmarshal(in, &w); err != nil {
-		return nil, nil, err
-	}
-
-	key := ed25519.PublicKey(w.KeyBytes)
-
-	return (ed25519PublicKey)(key), w.Rest, nil
-}
-
-func (k ed25519PublicKey) Marshal() []byte {
-	w := struct {
-		Name     string
-		KeyBytes []byte
-	}{
-		KeyAlgoED25519,
-		[]byte(k),
-	}
-	return Marshal(&w)
-}
-
-func (k ed25519PublicKey) Verify(b []byte, sig *Signature) error {
-	if sig.Format != k.Type() {
-		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
-	}
-
-	edKey := (ed25519.PublicKey)(k)
-	if ok := ed25519.Verify(edKey, b, sig.Blob); !ok {
-		return errors.New("ssh: signature did not verify")
-	}
-
-	return nil
-}
-
-func (k ed25519PublicKey) CryptoPublicKey() crypto.PublicKey {
-	return ed25519.PublicKey(k)
-}
-
-func supportedEllipticCurve(curve elliptic.Curve) bool {
-	return curve == elliptic.P256() || curve == elliptic.P384() || curve == elliptic.P521()
-}
-
-// ecHash returns the hash to match the given elliptic curve, see RFC
-// 5656, section 6.2.1
-func ecHash(curve elliptic.Curve) crypto.Hash {
-	bitSize := curve.Params().BitSize
-	switch {
-	case bitSize <= 256:
-		return crypto.SHA256
-	case bitSize <= 384:
-		return crypto.SHA384
-	}
-	return crypto.SHA512
-}
-
-// parseECDSA parses an ECDSA key according to RFC 5656, section 3.1.
-func parseECDSA(in []byte) (out PublicKey, rest []byte, err error) {
-	var w struct {
-		Curve    string
-		KeyBytes []byte
-		Rest     []byte `ssh:"rest"`
-	}
-
-	if err := Unmarshal(in, &w); err != nil {
-		return nil, nil, err
-	}
-
-	key := new(ecdsa.PublicKey)
-
-	switch w.Curve {
-	case "nistp256":
-		key.Curve = elliptic.P256()
-	case "nistp384":
-		key.Curve = elliptic.P384()
-	case "nistp521":
-		key.Curve = elliptic.P521()
-	default:
-		return nil, nil, errors.New("ssh: unsupported curve")
-	}
-
-	key.X, key.Y = elliptic.Unmarshal(key.Curve, w.KeyBytes)
-	if key.X == nil || key.Y == nil {
-		return nil, nil, errors.New("ssh: invalid curve point")
-	}
-	return (*ecdsaPublicKey)(key), w.Rest, nil
-}
-
-func (k *ecdsaPublicKey) Marshal() []byte {
-	// See RFC 5656, section 3.1.
-	keyBytes := elliptic.Marshal(k.Curve, k.X, k.Y)
-	// ECDSA publickey struct layout should match the struct used by
-	// parseECDSACert in the x/crypto/ssh/agent package.
-	w := struct {
-		Name string
-		ID   string
-		Key  []byte
-	}{
-		k.Type(),
-		k.nistID(),
-		keyBytes,
-	}
-
-	return Marshal(&w)
-}
-
-func (k *ecdsaPublicKey) Verify(data []byte, sig *Signature) error {
-	if sig.Format != k.Type() {
-		return fmt.Errorf("ssh: signature type %s for key type %s", sig.Format, k.Type())
-	}
-
-	h := ecHash(k.Curve).New()
-	h.Write(data)
-	digest := h.Sum(nil)
-
-	// Per RFC 5656, section 3.1.2,
-	// The ecdsa_signature_blob value has the following specific encoding:
-	//    mpint    r
-	//    mpint    s
-	var ecSig struct {
-		R *big.Int
-		S *big.Int
-	}
-
-	if err := Unmarshal(sig.Blob, &ecSig); err != nil {
-		return err
-	}
-
-	if ecdsa.Verify((*ecdsa.PublicKey)(k), digest, ecSig.R, ecSig.S) {
-		return nil
-	}
-	return errors.New("ssh: signature did not verify")
-}
-
-func (k *ecdsaPublicKey) CryptoPublicKey() crypto.PublicKey {
-	return (*ecdsa.PublicKey)(k)
-}
-
-// NewSignerFromKey takes an *rsa.PrivateKey, *dsa.PrivateKey,
-// *ecdsa.PrivateKey or any other crypto.Signer and returns a
-// corresponding Signer instance. ECDSA keys must use P-256, P-384 or
-// P-521. DSA keys must use parameter size L1024N160.
-func NewSignerFromKey(key interface{}) (Signer, error) {
-	switch key := key.(type) {
-	case crypto.Signer:
-		return NewSignerFromSigner(key)
-	case *dsa.PrivateKey:
-		return newDSAPrivateKey(key)
-	default:
-		return nil, fmt.Errorf("ssh: unsupported key type %T", key)
-	}
-}
-
-func newDSAPrivateKey(key *dsa.PrivateKey) (Signer, error) {
-	if err := checkDSAParams(&key.PublicKey.Parameters); err != nil {
-		return nil, err
-	}
-
-	return &dsaPrivateKey{key}, nil
-}
-
-type wrappedSigner struct {
-	signer crypto.Signer
-	pubKey PublicKey
-}
-
-// NewSignerFromSigner takes any crypto.Signer implementation and
-// returns a corresponding Signer interface. This can be used, for
-// example, with keys kept in hardware modules.
-func NewSignerFromSigner(signer crypto.Signer) (Signer, error) {
-	pubKey, err := NewPublicKey(signer.Public())
-	if err != nil {
-		return nil, err
-	}
-
-	return &wrappedSigner{signer, pubKey}, nil
-}
-
-func (s *wrappedSigner) PublicKey() PublicKey {
-	return s.pubKey
-}
-
-func (s *wrappedSigner) Sign(rand io.Reader, data []byte) (*Signature, error) {
-	var hashFunc crypto.Hash
-
-	switch key := s.pubKey.(type) {
-	case *rsaPublicKey, *dsaPublicKey:
-		hashFunc = crypto.SHA1
-	case *ecdsaPublicKey:
-		hashFunc = ecHash(key.Curve)
-	case ed25519PublicKey:
-	default:
-		return nil, fmt.Errorf("ssh: unsupported key type %T", key)
-	}
-
-	var digest []byte
-	if hashFunc != 0 {
-		h := hashFunc.New()
-		h.Write(data)
-		digest = h.Sum(nil)
-	} else {
-		digest = data
-	}
-
-	signature, err := s.signer.Sign(rand, digest, hashFunc)
-	if err != nil {
-		return nil, err
-	}
-
-	// crypto.Signer.Sign is expected to return an ASN.1-encoded signature
-	// for ECDSA and DSA, but that's not the encoding expected by SSH, so
-	// re-encode.
-	switch s.pubKey.(type) {
-	case *ecdsaPublicKey, *dsaPublicKey:
-		type asn1Signature struct {
-			R, S *big.Int
-		}
-		asn1Sig := new(asn1Signature)
-		_, err := asn1.Unmarshal(signature, asn1Sig)
-		if err != nil {
-			return nil, err
-		}
-
-		switch s.pubKey.(type) {
-		case *ecdsaPublicKey:
-			signature = Marshal(asn1Sig)
-
-		case *dsaPublicKey:
-			signature = make([]byte, 40)
-			r := asn1Sig.R.Bytes()
-			s := asn1Sig.S.Bytes()
-			copy(signature[20-len(r):20], r)
-			copy(signature[40-len(s):40], s)
-		}
-	}
-
-	return &Signature{
-		Format: s.pubKey.Type(),
-		Blob:   signature,
-	}, nil
-}
-
-// NewPublicKey takes an *rsa.PublicKey, *dsa.PublicKey, *ecdsa.PublicKey,
-// or ed25519.PublicKey returns a corresponding PublicKey instance.
-// ECDSA keys must use P-256, P-384 or P-521.
-func NewPublicKey(key interface{}) (PublicKey, error) {
-	switch key := key.(type) {
-	case *rsa.PublicKey:
-		return (*rsaPublicKey)(key), nil
-	case *ecdsa.PublicKey:
-		if !supportedEllipticCurve(key.Curve) {
-			return nil, errors.New("ssh: only P-256, P-384 and P-521 EC keys are supported")
-		}
-		return (*ecdsaPublicKey)(key), nil
-	case *dsa.PublicKey:
-		return (*dsaPublicKey)(key), nil
-	case ed25519.PublicKey:
-		return (ed25519PublicKey)(key), nil
-	default:
-		return nil, fmt.Errorf("ssh: unsupported key type %T", key)
-	}
-}
-
-// ParsePrivateKey returns a Signer from a PEM encoded private key. It supports
-// the same keys as ParseRawPrivateKey.
-func ParsePrivateKey(pemBytes []byte) (Signer, error) {
-	key, err := ParseRawPrivateKey(pemBytes)
-	if err != nil {
-		return nil, err
-	}
-
-	return NewSignerFromKey(key)
-}
-
-// ParsePrivateKeyWithPassphrase returns a Signer from a PEM encoded private
-// key and passphrase. It supports the same keys as
-// ParseRawPrivateKeyWithPassphrase.
-func ParsePrivateKeyWithPassphrase(pemBytes, passPhrase []byte) (Signer, error) {
-	key, err := ParseRawPrivateKeyWithPassphrase(pemBytes, passPhrase)
-	if err != nil {
-		return nil, err
-	}
-
-	return NewSignerFromKey(key)
-}
-
-// encryptedBlock tells whether a private key is
-// encrypted by examining its Proc-Type header
-// for a mention of ENCRYPTED
-// according to RFC 1421 Section 4.6.1.1.
-func encryptedBlock(block *pem.Block) bool {
-	return strings.Contains(block.Headers["Proc-Type"], "ENCRYPTED")
-}
-
-// ParseRawPrivateKey returns a private key from a PEM encoded private key. It
-// supports RSA (PKCS#1), DSA (OpenSSL), and ECDSA private keys.
-func ParseRawPrivateKey(pemBytes []byte) (interface{}, error) {
-	block, _ := pem.Decode(pemBytes)
-	if block == nil {
-		return nil, errors.New("ssh: no key found")
-	}
-
-	if encryptedBlock(block) {
-		return nil, errors.New("ssh: cannot decode encrypted private keys")
-	}
-
-	switch block.Type {
-	case "RSA PRIVATE KEY":
-		return x509.ParsePKCS1PrivateKey(block.Bytes)
-	case "EC PRIVATE KEY":
-		return x509.ParseECPrivateKey(block.Bytes)
-	case "DSA PRIVATE KEY":
-		return ParseDSAPrivateKey(block.Bytes)
-	case "OPENSSH PRIVATE KEY":
-		return parseOpenSSHPrivateKey(block.Bytes)
-	default:
-		return nil, fmt.Errorf("ssh: unsupported key type %q", block.Type)
-	}
-}
-
-// ParseRawPrivateKeyWithPassphrase returns a private key decrypted with
-// passphrase from a PEM encoded private key. If wrong passphrase, return
-// x509.IncorrectPasswordError.
-func ParseRawPrivateKeyWithPassphrase(pemBytes, passPhrase []byte) (interface{}, error) {
-	block, _ := pem.Decode(pemBytes)
-	if block == nil {
-		return nil, errors.New("ssh: no key found")
-	}
-	buf := block.Bytes
-
-	if encryptedBlock(block) {
-		if x509.IsEncryptedPEMBlock(block) {
-			var err error
-			buf, err = x509.DecryptPEMBlock(block, passPhrase)
-			if err != nil {
-				if err == x509.IncorrectPasswordError {
-					return nil, err
-				}
-				return nil, fmt.Errorf("ssh: cannot decode encrypted private keys: %v", err)
-			}
-		}
-	}
-
-	switch block.Type {
-	case "RSA PRIVATE KEY":
-		return x509.ParsePKCS1PrivateKey(buf)
-	case "EC PRIVATE KEY":
-		return x509.ParseECPrivateKey(buf)
-	case "DSA PRIVATE KEY":
-		return ParseDSAPrivateKey(buf)
-	case "OPENSSH PRIVATE KEY":
-		return parseOpenSSHPrivateKey(buf)
-	default:
-		return nil, fmt.Errorf("ssh: unsupported key type %q", block.Type)
-	}
-}
-
-// ParseDSAPrivateKey returns a DSA private key from its ASN.1 DER encoding, as
-// specified by the OpenSSL DSA man page.
-func ParseDSAPrivateKey(der []byte) (*dsa.PrivateKey, error) {
-	var k struct {
-		Version int
-		P       *big.Int
-		Q       *big.Int
-		G       *big.Int
-		Pub     *big.Int
-		Priv    *big.Int
-	}
-	rest, err := asn1.Unmarshal(der, &k)
-	if err != nil {
-		return nil, errors.New("ssh: failed to parse DSA key: " + err.Error())
-	}
-	if len(rest) > 0 {
-		return nil, errors.New("ssh: garbage after DSA key")
-	}
-
-	return &dsa.PrivateKey{
-		PublicKey: dsa.PublicKey{
-			Parameters: dsa.Parameters{
-				P: k.P,
-				Q: k.Q,
-				G: k.G,
-			},
-			Y: k.Pub,
-		},
-		X: k.Priv,
-	}, nil
-}
-
-// Implemented based on the documentation at
-// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL.key
-func parseOpenSSHPrivateKey(key []byte) (crypto.PrivateKey, error) {
-	magic := append([]byte("openssh-key-v1"), 0)
-	if !bytes.Equal(magic, key[0:len(magic)]) {
-		return nil, errors.New("ssh: invalid openssh private key format")
-	}
-	remaining := key[len(magic):]
-
-	var w struct {
-		CipherName   string
-		KdfName      string
-		KdfOpts      string
-		NumKeys      uint32
-		PubKey       []byte
-		PrivKeyBlock []byte
-	}
-
-	if err := Unmarshal(remaining, &w); err != nil {
-		return nil, err
-	}
-
-	if w.KdfName != "none" || w.CipherName != "none" {
-		return nil, errors.New("ssh: cannot decode encrypted private keys")
-	}
-
-	pk1 := struct {
-		Check1  uint32
-		Check2  uint32
-		Keytype string
-		Rest    []byte `ssh:"rest"`
-	}{}
-
-	if err := Unmarshal(w.PrivKeyBlock, &pk1); err != nil {
-		return nil, err
-	}
-
-	if pk1.Check1 != pk1.Check2 {
-		return nil, errors.New("ssh: checkint mismatch")
-	}
-
-	// we only handle ed25519 and rsa keys currently
-	switch pk1.Keytype {
-	case KeyAlgoRSA:
-		// https://github.com/openssh/openssh-portable/blob/master/sshkey.c#L2760-L2773
-		key := struct {
-			N       *big.Int
-			E       *big.Int
-			D       *big.Int
-			Iqmp    *big.Int
-			P       *big.Int
-			Q       *big.Int
-			Comment string
-			Pad     []byte `ssh:"rest"`
-		}{}
-
-		if err := Unmarshal(pk1.Rest, &key); err != nil {
-			return nil, err
-		}
-
-		for i, b := range key.Pad {
-			if int(b) != i+1 {
-				return nil, errors.New("ssh: padding not as expected")
-			}
-		}
-
-		pk := &rsa.PrivateKey{
-			PublicKey: rsa.PublicKey{
-				N: key.N,
-				E: int(key.E.Int64()),
-			},
-			D:      key.D,
-			Primes: []*big.Int{key.P, key.Q},
-		}
-
-		if err := pk.Validate(); err != nil {
-			return nil, err
-		}
-
-		pk.Precompute()
-
-		return pk, nil
-	case KeyAlgoED25519:
-		key := struct {
-			Pub     []byte
-			Priv    []byte
-			Comment string
-			Pad     []byte `ssh:"rest"`
-		}{}
-
-		if err := Unmarshal(pk1.Rest, &key); err != nil {
-			return nil, err
-		}
-
-		if len(key.Priv) != ed25519.PrivateKeySize {
-			return nil, errors.New("ssh: private key unexpected length")
-		}
-
-		for i, b := range key.Pad {
-			if int(b) != i+1 {
-				return nil, errors.New("ssh: padding not as expected")
-			}
-		}
-
-		pk := ed25519.PrivateKey(make([]byte, ed25519.PrivateKeySize))
-		copy(pk, key.Priv)
-		return &pk, nil
-	default:
-		return nil, errors.New("ssh: unhandled key type")
-	}
-}
-
-// FingerprintLegacyMD5 returns the user presentation of the key's
-// fingerprint as described by RFC 4716 section 4.
-func FingerprintLegacyMD5(pubKey PublicKey) string {
-	md5sum := md5.Sum(pubKey.Marshal())
-	hexarray := make([]string, len(md5sum))
-	for i, c := range md5sum {
-		hexarray[i] = hex.EncodeToString([]byte{c})
-	}
-	return strings.Join(hexarray, ":")
-}
-
-// FingerprintSHA256 returns the user presentation of the key's
-// fingerprint as unpadded base64 encoded sha256 hash.
-// This format was introduced from OpenSSH 6.8.
-// https://www.openssh.com/txt/release-6.8
-// https://tools.ietf.org/html/rfc4648#section-3.2 (unpadded base64 encoding)
-func FingerprintSHA256(pubKey PublicKey) string {
-	sha256sum := sha256.Sum256(pubKey.Marshal())
-	hash := base64.RawStdEncoding.EncodeToString(sha256sum[:])
-	return "SHA256:" + hash
-}
diff --git a/vendor/golang.org/x/crypto/ssh/keys_test.go b/vendor/golang.org/x/crypto/ssh/keys_test.go
deleted file mode 100644
index 9a90abc..0000000
--- a/vendor/golang.org/x/crypto/ssh/keys_test.go
+++ /dev/null
@@ -1,500 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto/dsa"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/base64"
-	"fmt"
-	"reflect"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/ed25519"
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-func rawKey(pub PublicKey) interface{} {
-	switch k := pub.(type) {
-	case *rsaPublicKey:
-		return (*rsa.PublicKey)(k)
-	case *dsaPublicKey:
-		return (*dsa.PublicKey)(k)
-	case *ecdsaPublicKey:
-		return (*ecdsa.PublicKey)(k)
-	case ed25519PublicKey:
-		return (ed25519.PublicKey)(k)
-	case *Certificate:
-		return k
-	}
-	panic("unknown key type")
-}
-
-func TestKeyMarshalParse(t *testing.T) {
-	for _, priv := range testSigners {
-		pub := priv.PublicKey()
-		roundtrip, err := ParsePublicKey(pub.Marshal())
-		if err != nil {
-			t.Errorf("ParsePublicKey(%T): %v", pub, err)
-		}
-
-		k1 := rawKey(pub)
-		k2 := rawKey(roundtrip)
-
-		if !reflect.DeepEqual(k1, k2) {
-			t.Errorf("got %#v in roundtrip, want %#v", k2, k1)
-		}
-	}
-}
-
-func TestUnsupportedCurves(t *testing.T) {
-	raw, err := ecdsa.GenerateKey(elliptic.P224(), rand.Reader)
-	if err != nil {
-		t.Fatalf("GenerateKey: %v", err)
-	}
-
-	if _, err = NewSignerFromKey(raw); err == nil || !strings.Contains(err.Error(), "only P-256") {
-		t.Fatalf("NewPrivateKey should not succeed with P-224, got: %v", err)
-	}
-
-	if _, err = NewPublicKey(&raw.PublicKey); err == nil || !strings.Contains(err.Error(), "only P-256") {
-		t.Fatalf("NewPublicKey should not succeed with P-224, got: %v", err)
-	}
-}
-
-func TestNewPublicKey(t *testing.T) {
-	for _, k := range testSigners {
-		raw := rawKey(k.PublicKey())
-		// Skip certificates, as NewPublicKey does not support them.
-		if _, ok := raw.(*Certificate); ok {
-			continue
-		}
-		pub, err := NewPublicKey(raw)
-		if err != nil {
-			t.Errorf("NewPublicKey(%#v): %v", raw, err)
-		}
-		if !reflect.DeepEqual(k.PublicKey(), pub) {
-			t.Errorf("NewPublicKey(%#v) = %#v, want %#v", raw, pub, k.PublicKey())
-		}
-	}
-}
-
-func TestKeySignVerify(t *testing.T) {
-	for _, priv := range testSigners {
-		pub := priv.PublicKey()
-
-		data := []byte("sign me")
-		sig, err := priv.Sign(rand.Reader, data)
-		if err != nil {
-			t.Fatalf("Sign(%T): %v", priv, err)
-		}
-
-		if err := pub.Verify(data, sig); err != nil {
-			t.Errorf("publicKey.Verify(%T): %v", priv, err)
-		}
-		sig.Blob[5]++
-		if err := pub.Verify(data, sig); err == nil {
-			t.Errorf("publicKey.Verify on broken sig did not fail")
-		}
-	}
-}
-
-func TestParseRSAPrivateKey(t *testing.T) {
-	key := testPrivateKeys["rsa"]
-
-	rsa, ok := key.(*rsa.PrivateKey)
-	if !ok {
-		t.Fatalf("got %T, want *rsa.PrivateKey", rsa)
-	}
-
-	if err := rsa.Validate(); err != nil {
-		t.Errorf("Validate: %v", err)
-	}
-}
-
-func TestParseECPrivateKey(t *testing.T) {
-	key := testPrivateKeys["ecdsa"]
-
-	ecKey, ok := key.(*ecdsa.PrivateKey)
-	if !ok {
-		t.Fatalf("got %T, want *ecdsa.PrivateKey", ecKey)
-	}
-
-	if !validateECPublicKey(ecKey.Curve, ecKey.X, ecKey.Y) {
-		t.Fatalf("public key does not validate.")
-	}
-}
-
-// See Issue https://github.com/golang/go/issues/6650.
-func TestParseEncryptedPrivateKeysFails(t *testing.T) {
-	const wantSubstring = "encrypted"
-	for i, tt := range testdata.PEMEncryptedKeys {
-		_, err := ParsePrivateKey(tt.PEMBytes)
-		if err == nil {
-			t.Errorf("#%d key %s: ParsePrivateKey successfully parsed, expected an error", i, tt.Name)
-			continue
-		}
-
-		if !strings.Contains(err.Error(), wantSubstring) {
-			t.Errorf("#%d key %s: got error %q, want substring %q", i, tt.Name, err, wantSubstring)
-		}
-	}
-}
-
-// Parse encrypted private keys with passphrase
-func TestParseEncryptedPrivateKeysWithPassphrase(t *testing.T) {
-	data := []byte("sign me")
-	for _, tt := range testdata.PEMEncryptedKeys {
-		s, err := ParsePrivateKeyWithPassphrase(tt.PEMBytes, []byte(tt.EncryptionKey))
-		if err != nil {
-			t.Fatalf("ParsePrivateKeyWithPassphrase returned error: %s", err)
-			continue
-		}
-		sig, err := s.Sign(rand.Reader, data)
-		if err != nil {
-			t.Fatalf("dsa.Sign: %v", err)
-		}
-		if err := s.PublicKey().Verify(data, sig); err != nil {
-			t.Errorf("Verify failed: %v", err)
-		}
-	}
-
-	tt := testdata.PEMEncryptedKeys[0]
-	_, err := ParsePrivateKeyWithPassphrase(tt.PEMBytes, []byte("incorrect"))
-	if err != x509.IncorrectPasswordError {
-		t.Fatalf("got %v want IncorrectPasswordError", err)
-	}
-}
-
-func TestParseDSA(t *testing.T) {
-	// We actually exercise the ParsePrivateKey codepath here, as opposed to
-	// using the ParseRawPrivateKey+NewSignerFromKey path that testdata_test.go
-	// uses.
-	s, err := ParsePrivateKey(testdata.PEMBytes["dsa"])
-	if err != nil {
-		t.Fatalf("ParsePrivateKey returned error: %s", err)
-	}
-
-	data := []byte("sign me")
-	sig, err := s.Sign(rand.Reader, data)
-	if err != nil {
-		t.Fatalf("dsa.Sign: %v", err)
-	}
-
-	if err := s.PublicKey().Verify(data, sig); err != nil {
-		t.Errorf("Verify failed: %v", err)
-	}
-}
-
-// Tests for authorized_keys parsing.
-
-// getTestKey returns a public key, and its base64 encoding.
-func getTestKey() (PublicKey, string) {
-	k := testPublicKeys["rsa"]
-
-	b := &bytes.Buffer{}
-	e := base64.NewEncoder(base64.StdEncoding, b)
-	e.Write(k.Marshal())
-	e.Close()
-
-	return k, b.String()
-}
-
-func TestMarshalParsePublicKey(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	line := fmt.Sprintf("%s %s user@host", pub.Type(), pubSerialized)
-
-	authKeys := MarshalAuthorizedKey(pub)
-	actualFields := strings.Fields(string(authKeys))
-	if len(actualFields) == 0 {
-		t.Fatalf("failed authKeys: %v", authKeys)
-	}
-
-	// drop the comment
-	expectedFields := strings.Fields(line)[0:2]
-
-	if !reflect.DeepEqual(actualFields, expectedFields) {
-		t.Errorf("got %v, expected %v", actualFields, expectedFields)
-	}
-
-	actPub, _, _, _, err := ParseAuthorizedKey([]byte(line))
-	if err != nil {
-		t.Fatalf("cannot parse %v: %v", line, err)
-	}
-	if !reflect.DeepEqual(actPub, pub) {
-		t.Errorf("got %v, expected %v", actPub, pub)
-	}
-}
-
-type testAuthResult struct {
-	pubKey   PublicKey
-	options  []string
-	comments string
-	rest     string
-	ok       bool
-}
-
-func testAuthorizedKeys(t *testing.T, authKeys []byte, expected []testAuthResult) {
-	rest := authKeys
-	var values []testAuthResult
-	for len(rest) > 0 {
-		var r testAuthResult
-		var err error
-		r.pubKey, r.comments, r.options, rest, err = ParseAuthorizedKey(rest)
-		r.ok = (err == nil)
-		t.Log(err)
-		r.rest = string(rest)
-		values = append(values, r)
-	}
-
-	if !reflect.DeepEqual(values, expected) {
-		t.Errorf("got %#v, expected %#v", values, expected)
-	}
-}
-
-func TestAuthorizedKeyBasic(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	line := "ssh-rsa " + pubSerialized + " user@host"
-	testAuthorizedKeys(t, []byte(line),
-		[]testAuthResult{
-			{pub, nil, "user@host", "", true},
-		})
-}
-
-func TestAuth(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	authWithOptions := []string{
-		`# comments to ignore before any keys...`,
-		``,
-		`env="HOME=/home/root",no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host`,
-		`# comments to ignore, along with a blank line`,
-		``,
-		`env="HOME=/home/root2" ssh-rsa ` + pubSerialized + ` user2@host2`,
-		``,
-		`# more comments, plus a invalid entry`,
-		`ssh-rsa data-that-will-not-parse user@host3`,
-	}
-	for _, eol := range []string{"\n", "\r\n"} {
-		authOptions := strings.Join(authWithOptions, eol)
-		rest2 := strings.Join(authWithOptions[3:], eol)
-		rest3 := strings.Join(authWithOptions[6:], eol)
-		testAuthorizedKeys(t, []byte(authOptions), []testAuthResult{
-			{pub, []string{`env="HOME=/home/root"`, "no-port-forwarding"}, "user@host", rest2, true},
-			{pub, []string{`env="HOME=/home/root2"`}, "user2@host2", rest3, true},
-			{nil, nil, "", "", false},
-		})
-	}
-}
-
-func TestAuthWithQuotedSpaceInEnv(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	authWithQuotedSpaceInEnv := []byte(`env="HOME=/home/root dir",no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host`)
-	testAuthorizedKeys(t, []byte(authWithQuotedSpaceInEnv), []testAuthResult{
-		{pub, []string{`env="HOME=/home/root dir"`, "no-port-forwarding"}, "user@host", "", true},
-	})
-}
-
-func TestAuthWithQuotedCommaInEnv(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	authWithQuotedCommaInEnv := []byte(`env="HOME=/home/root,dir",no-port-forwarding ssh-rsa ` + pubSerialized + `   user@host`)
-	testAuthorizedKeys(t, []byte(authWithQuotedCommaInEnv), []testAuthResult{
-		{pub, []string{`env="HOME=/home/root,dir"`, "no-port-forwarding"}, "user@host", "", true},
-	})
-}
-
-func TestAuthWithQuotedQuoteInEnv(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	authWithQuotedQuoteInEnv := []byte(`env="HOME=/home/\"root dir",no-port-forwarding` + "\t" + `ssh-rsa` + "\t" + pubSerialized + `   user@host`)
-	authWithDoubleQuotedQuote := []byte(`no-port-forwarding,env="HOME=/home/ \"root dir\"" ssh-rsa ` + pubSerialized + "\t" + `user@host`)
-	testAuthorizedKeys(t, []byte(authWithQuotedQuoteInEnv), []testAuthResult{
-		{pub, []string{`env="HOME=/home/\"root dir"`, "no-port-forwarding"}, "user@host", "", true},
-	})
-
-	testAuthorizedKeys(t, []byte(authWithDoubleQuotedQuote), []testAuthResult{
-		{pub, []string{"no-port-forwarding", `env="HOME=/home/ \"root dir\""`}, "user@host", "", true},
-	})
-}
-
-func TestAuthWithInvalidSpace(t *testing.T) {
-	_, pubSerialized := getTestKey()
-	authWithInvalidSpace := []byte(`env="HOME=/home/root dir", no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host
-#more to follow but still no valid keys`)
-	testAuthorizedKeys(t, []byte(authWithInvalidSpace), []testAuthResult{
-		{nil, nil, "", "", false},
-	})
-}
-
-func TestAuthWithMissingQuote(t *testing.T) {
-	pub, pubSerialized := getTestKey()
-	authWithMissingQuote := []byte(`env="HOME=/home/root,no-port-forwarding ssh-rsa ` + pubSerialized + ` user@host
-env="HOME=/home/root",shared-control ssh-rsa ` + pubSerialized + ` user@host`)
-
-	testAuthorizedKeys(t, []byte(authWithMissingQuote), []testAuthResult{
-		{pub, []string{`env="HOME=/home/root"`, `shared-control`}, "user@host", "", true},
-	})
-}
-
-func TestInvalidEntry(t *testing.T) {
-	authInvalid := []byte(`ssh-rsa`)
-	_, _, _, _, err := ParseAuthorizedKey(authInvalid)
-	if err == nil {
-		t.Errorf("got valid entry for %q", authInvalid)
-	}
-}
-
-var knownHostsParseTests = []struct {
-	input string
-	err   string
-
-	marker  string
-	comment string
-	hosts   []string
-	rest    string
-}{
-	{
-		"",
-		"EOF",
-
-		"", "", nil, "",
-	},
-	{
-		"# Just a comment",
-		"EOF",
-
-		"", "", nil, "",
-	},
-	{
-		"   \t   ",
-		"EOF",
-
-		"", "", nil, "",
-	},
-	{
-		"localhost ssh-rsa {RSAPUB}",
-		"",
-
-		"", "", []string{"localhost"}, "",
-	},
-	{
-		"localhost\tssh-rsa {RSAPUB}",
-		"",
-
-		"", "", []string{"localhost"}, "",
-	},
-	{
-		"localhost\tssh-rsa {RSAPUB}\tcomment comment",
-		"",
-
-		"", "comment comment", []string{"localhost"}, "",
-	},
-	{
-		"localhost\tssh-rsa {RSAPUB}\tcomment comment\n",
-		"",
-
-		"", "comment comment", []string{"localhost"}, "",
-	},
-	{
-		"localhost\tssh-rsa {RSAPUB}\tcomment comment\r\n",
-		"",
-
-		"", "comment comment", []string{"localhost"}, "",
-	},
-	{
-		"localhost\tssh-rsa {RSAPUB}\tcomment comment\r\nnext line",
-		"",
-
-		"", "comment comment", []string{"localhost"}, "next line",
-	},
-	{
-		"localhost,[host2:123]\tssh-rsa {RSAPUB}\tcomment comment",
-		"",
-
-		"", "comment comment", []string{"localhost", "[host2:123]"}, "",
-	},
-	{
-		"@marker \tlocalhost,[host2:123]\tssh-rsa {RSAPUB}",
-		"",
-
-		"marker", "", []string{"localhost", "[host2:123]"}, "",
-	},
-	{
-		"@marker \tlocalhost,[host2:123]\tssh-rsa aabbccdd",
-		"short read",
-
-		"", "", nil, "",
-	},
-}
-
-func TestKnownHostsParsing(t *testing.T) {
-	rsaPub, rsaPubSerialized := getTestKey()
-
-	for i, test := range knownHostsParseTests {
-		var expectedKey PublicKey
-		const rsaKeyToken = "{RSAPUB}"
-
-		input := test.input
-		if strings.Contains(input, rsaKeyToken) {
-			expectedKey = rsaPub
-			input = strings.Replace(test.input, rsaKeyToken, rsaPubSerialized, -1)
-		}
-
-		marker, hosts, pubKey, comment, rest, err := ParseKnownHosts([]byte(input))
-		if err != nil {
-			if len(test.err) == 0 {
-				t.Errorf("#%d: unexpectedly failed with %q", i, err)
-			} else if !strings.Contains(err.Error(), test.err) {
-				t.Errorf("#%d: expected error containing %q, but got %q", i, test.err, err)
-			}
-			continue
-		} else if len(test.err) != 0 {
-			t.Errorf("#%d: succeeded but expected error including %q", i, test.err)
-			continue
-		}
-
-		if !reflect.DeepEqual(expectedKey, pubKey) {
-			t.Errorf("#%d: expected key %#v, but got %#v", i, expectedKey, pubKey)
-		}
-
-		if marker != test.marker {
-			t.Errorf("#%d: expected marker %q, but got %q", i, test.marker, marker)
-		}
-
-		if comment != test.comment {
-			t.Errorf("#%d: expected comment %q, but got %q", i, test.comment, comment)
-		}
-
-		if !reflect.DeepEqual(test.hosts, hosts) {
-			t.Errorf("#%d: expected hosts %#v, but got %#v", i, test.hosts, hosts)
-		}
-
-		if rest := string(rest); rest != test.rest {
-			t.Errorf("#%d: expected remaining input to be %q, but got %q", i, test.rest, rest)
-		}
-	}
-}
-
-func TestFingerprintLegacyMD5(t *testing.T) {
-	pub, _ := getTestKey()
-	fingerprint := FingerprintLegacyMD5(pub)
-	want := "fb:61:6d:1a:e3:f0:95:45:3c:a0:79:be:4a:93:63:66" // ssh-keygen -lf -E md5 rsa
-	if fingerprint != want {
-		t.Errorf("got fingerprint %q want %q", fingerprint, want)
-	}
-}
-
-func TestFingerprintSHA256(t *testing.T) {
-	pub, _ := getTestKey()
-	fingerprint := FingerprintSHA256(pub)
-	want := "SHA256:Anr3LjZK8YVpjrxu79myrW9Hrb/wpcMNpVvTq/RcBm8" // ssh-keygen -lf rsa
-	if fingerprint != want {
-		t.Errorf("got fingerprint %q want %q", fingerprint, want)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go b/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go
deleted file mode 100644
index bc3db73..0000000
--- a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts.go
+++ /dev/null
@@ -1,540 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package knownhosts implements a parser for the OpenSSH known_hosts
-// host key database, and provides utility functions for writing
-// OpenSSH compliant known_hosts files.
-package knownhosts
-
-import (
-	"bufio"
-	"bytes"
-	"crypto/hmac"
-	"crypto/rand"
-	"crypto/sha1"
-	"encoding/base64"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"os"
-	"strings"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// See the sshd manpage
-// (http://man.openbsd.org/sshd#SSH_KNOWN_HOSTS_FILE_FORMAT) for
-// background.
-
-type addr struct{ host, port string }
-
-func (a *addr) String() string {
-	h := a.host
-	if strings.Contains(h, ":") {
-		h = "[" + h + "]"
-	}
-	return h + ":" + a.port
-}
-
-type matcher interface {
-	match(addr) bool
-}
-
-type hostPattern struct {
-	negate bool
-	addr   addr
-}
-
-func (p *hostPattern) String() string {
-	n := ""
-	if p.negate {
-		n = "!"
-	}
-
-	return n + p.addr.String()
-}
-
-type hostPatterns []hostPattern
-
-func (ps hostPatterns) match(a addr) bool {
-	matched := false
-	for _, p := range ps {
-		if !p.match(a) {
-			continue
-		}
-		if p.negate {
-			return false
-		}
-		matched = true
-	}
-	return matched
-}
-
-// See
-// https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/addrmatch.c
-// The matching of * has no regard for separators, unlike filesystem globs
-func wildcardMatch(pat []byte, str []byte) bool {
-	for {
-		if len(pat) == 0 {
-			return len(str) == 0
-		}
-		if len(str) == 0 {
-			return false
-		}
-
-		if pat[0] == '*' {
-			if len(pat) == 1 {
-				return true
-			}
-
-			for j := range str {
-				if wildcardMatch(pat[1:], str[j:]) {
-					return true
-				}
-			}
-			return false
-		}
-
-		if pat[0] == '?' || pat[0] == str[0] {
-			pat = pat[1:]
-			str = str[1:]
-		} else {
-			return false
-		}
-	}
-}
-
-func (p *hostPattern) match(a addr) bool {
-	return wildcardMatch([]byte(p.addr.host), []byte(a.host)) && p.addr.port == a.port
-}
-
-type keyDBLine struct {
-	cert     bool
-	matcher  matcher
-	knownKey KnownKey
-}
-
-func serialize(k ssh.PublicKey) string {
-	return k.Type() + " " + base64.StdEncoding.EncodeToString(k.Marshal())
-}
-
-func (l *keyDBLine) match(a addr) bool {
-	return l.matcher.match(a)
-}
-
-type hostKeyDB struct {
-	// Serialized version of revoked keys
-	revoked map[string]*KnownKey
-	lines   []keyDBLine
-}
-
-func newHostKeyDB() *hostKeyDB {
-	db := &hostKeyDB{
-		revoked: make(map[string]*KnownKey),
-	}
-
-	return db
-}
-
-func keyEq(a, b ssh.PublicKey) bool {
-	return bytes.Equal(a.Marshal(), b.Marshal())
-}
-
-// IsAuthorityForHost can be used as a callback in ssh.CertChecker
-func (db *hostKeyDB) IsHostAuthority(remote ssh.PublicKey, address string) bool {
-	h, p, err := net.SplitHostPort(address)
-	if err != nil {
-		return false
-	}
-	a := addr{host: h, port: p}
-
-	for _, l := range db.lines {
-		if l.cert && keyEq(l.knownKey.Key, remote) && l.match(a) {
-			return true
-		}
-	}
-	return false
-}
-
-// IsRevoked can be used as a callback in ssh.CertChecker
-func (db *hostKeyDB) IsRevoked(key *ssh.Certificate) bool {
-	_, ok := db.revoked[string(key.Marshal())]
-	return ok
-}
-
-const markerCert = "@cert-authority"
-const markerRevoked = "@revoked"
-
-func nextWord(line []byte) (string, []byte) {
-	i := bytes.IndexAny(line, "\t ")
-	if i == -1 {
-		return string(line), nil
-	}
-
-	return string(line[:i]), bytes.TrimSpace(line[i:])
-}
-
-func parseLine(line []byte) (marker, host string, key ssh.PublicKey, err error) {
-	if w, next := nextWord(line); w == markerCert || w == markerRevoked {
-		marker = w
-		line = next
-	}
-
-	host, line = nextWord(line)
-	if len(line) == 0 {
-		return "", "", nil, errors.New("knownhosts: missing host pattern")
-	}
-
-	// ignore the keytype as it's in the key blob anyway.
-	_, line = nextWord(line)
-	if len(line) == 0 {
-		return "", "", nil, errors.New("knownhosts: missing key type pattern")
-	}
-
-	keyBlob, _ := nextWord(line)
-
-	keyBytes, err := base64.StdEncoding.DecodeString(keyBlob)
-	if err != nil {
-		return "", "", nil, err
-	}
-	key, err = ssh.ParsePublicKey(keyBytes)
-	if err != nil {
-		return "", "", nil, err
-	}
-
-	return marker, host, key, nil
-}
-
-func (db *hostKeyDB) parseLine(line []byte, filename string, linenum int) error {
-	marker, pattern, key, err := parseLine(line)
-	if err != nil {
-		return err
-	}
-
-	if marker == markerRevoked {
-		db.revoked[string(key.Marshal())] = &KnownKey{
-			Key:      key,
-			Filename: filename,
-			Line:     linenum,
-		}
-
-		return nil
-	}
-
-	entry := keyDBLine{
-		cert: marker == markerCert,
-		knownKey: KnownKey{
-			Filename: filename,
-			Line:     linenum,
-			Key:      key,
-		},
-	}
-
-	if pattern[0] == '|' {
-		entry.matcher, err = newHashedHost(pattern)
-	} else {
-		entry.matcher, err = newHostnameMatcher(pattern)
-	}
-
-	if err != nil {
-		return err
-	}
-
-	db.lines = append(db.lines, entry)
-	return nil
-}
-
-func newHostnameMatcher(pattern string) (matcher, error) {
-	var hps hostPatterns
-	for _, p := range strings.Split(pattern, ",") {
-		if len(p) == 0 {
-			continue
-		}
-
-		var a addr
-		var negate bool
-		if p[0] == '!' {
-			negate = true
-			p = p[1:]
-		}
-
-		if len(p) == 0 {
-			return nil, errors.New("knownhosts: negation without following hostname")
-		}
-
-		var err error
-		if p[0] == '[' {
-			a.host, a.port, err = net.SplitHostPort(p)
-			if err != nil {
-				return nil, err
-			}
-		} else {
-			a.host, a.port, err = net.SplitHostPort(p)
-			if err != nil {
-				a.host = p
-				a.port = "22"
-			}
-		}
-		hps = append(hps, hostPattern{
-			negate: negate,
-			addr:   a,
-		})
-	}
-	return hps, nil
-}
-
-// KnownKey represents a key declared in a known_hosts file.
-type KnownKey struct {
-	Key      ssh.PublicKey
-	Filename string
-	Line     int
-}
-
-func (k *KnownKey) String() string {
-	return fmt.Sprintf("%s:%d: %s", k.Filename, k.Line, serialize(k.Key))
-}
-
-// KeyError is returned if we did not find the key in the host key
-// database, or there was a mismatch.  Typically, in batch
-// applications, this should be interpreted as failure. Interactive
-// applications can offer an interactive prompt to the user.
-type KeyError struct {
-	// Want holds the accepted host keys. For each key algorithm,
-	// there can be one hostkey.  If Want is empty, the host is
-	// unknown. If Want is non-empty, there was a mismatch, which
-	// can signify a MITM attack.
-	Want []KnownKey
-}
-
-func (u *KeyError) Error() string {
-	if len(u.Want) == 0 {
-		return "knownhosts: key is unknown"
-	}
-	return "knownhosts: key mismatch"
-}
-
-// RevokedError is returned if we found a key that was revoked.
-type RevokedError struct {
-	Revoked KnownKey
-}
-
-func (r *RevokedError) Error() string {
-	return "knownhosts: key is revoked"
-}
-
-// check checks a key against the host database. This should not be
-// used for verifying certificates.
-func (db *hostKeyDB) check(address string, remote net.Addr, remoteKey ssh.PublicKey) error {
-	if revoked := db.revoked[string(remoteKey.Marshal())]; revoked != nil {
-		return &RevokedError{Revoked: *revoked}
-	}
-
-	host, port, err := net.SplitHostPort(remote.String())
-	if err != nil {
-		return fmt.Errorf("knownhosts: SplitHostPort(%s): %v", remote, err)
-	}
-
-	hostToCheck := addr{host, port}
-	if address != "" {
-		// Give preference to the hostname if available.
-		host, port, err := net.SplitHostPort(address)
-		if err != nil {
-			return fmt.Errorf("knownhosts: SplitHostPort(%s): %v", address, err)
-		}
-
-		hostToCheck = addr{host, port}
-	}
-
-	return db.checkAddr(hostToCheck, remoteKey)
-}
-
-// checkAddrs checks if we can find the given public key for any of
-// the given addresses.  If we only find an entry for the IP address,
-// or only the hostname, then this still succeeds.
-func (db *hostKeyDB) checkAddr(a addr, remoteKey ssh.PublicKey) error {
-	// TODO(hanwen): are these the right semantics? What if there
-	// is just a key for the IP address, but not for the
-	// hostname?
-
-	// Algorithm => key.
-	knownKeys := map[string]KnownKey{}
-	for _, l := range db.lines {
-		if l.match(a) {
-			typ := l.knownKey.Key.Type()
-			if _, ok := knownKeys[typ]; !ok {
-				knownKeys[typ] = l.knownKey
-			}
-		}
-	}
-
-	keyErr := &KeyError{}
-	for _, v := range knownKeys {
-		keyErr.Want = append(keyErr.Want, v)
-	}
-
-	// Unknown remote host.
-	if len(knownKeys) == 0 {
-		return keyErr
-	}
-
-	// If the remote host starts using a different, unknown key type, we
-	// also interpret that as a mismatch.
-	if known, ok := knownKeys[remoteKey.Type()]; !ok || !keyEq(known.Key, remoteKey) {
-		return keyErr
-	}
-
-	return nil
-}
-
-// The Read function parses file contents.
-func (db *hostKeyDB) Read(r io.Reader, filename string) error {
-	scanner := bufio.NewScanner(r)
-
-	lineNum := 0
-	for scanner.Scan() {
-		lineNum++
-		line := scanner.Bytes()
-		line = bytes.TrimSpace(line)
-		if len(line) == 0 || line[0] == '#' {
-			continue
-		}
-
-		if err := db.parseLine(line, filename, lineNum); err != nil {
-			return fmt.Errorf("knownhosts: %s:%d: %v", filename, lineNum, err)
-		}
-	}
-	return scanner.Err()
-}
-
-// New creates a host key callback from the given OpenSSH host key
-// files. The returned callback is for use in
-// ssh.ClientConfig.HostKeyCallback. By preference, the key check
-// operates on the hostname if available, i.e. if a server changes its
-// IP address, the host key check will still succeed, even though a
-// record of the new IP address is not available.
-func New(files ...string) (ssh.HostKeyCallback, error) {
-	db := newHostKeyDB()
-	for _, fn := range files {
-		f, err := os.Open(fn)
-		if err != nil {
-			return nil, err
-		}
-		defer f.Close()
-		if err := db.Read(f, fn); err != nil {
-			return nil, err
-		}
-	}
-
-	var certChecker ssh.CertChecker
-	certChecker.IsHostAuthority = db.IsHostAuthority
-	certChecker.IsRevoked = db.IsRevoked
-	certChecker.HostKeyFallback = db.check
-
-	return certChecker.CheckHostKey, nil
-}
-
-// Normalize normalizes an address into the form used in known_hosts
-func Normalize(address string) string {
-	host, port, err := net.SplitHostPort(address)
-	if err != nil {
-		host = address
-		port = "22"
-	}
-	entry := host
-	if port != "22" {
-		entry = "[" + entry + "]:" + port
-	} else if strings.Contains(host, ":") && !strings.HasPrefix(host, "[") {
-		entry = "[" + entry + "]"
-	}
-	return entry
-}
-
-// Line returns a line to add append to the known_hosts files.
-func Line(addresses []string, key ssh.PublicKey) string {
-	var trimmed []string
-	for _, a := range addresses {
-		trimmed = append(trimmed, Normalize(a))
-	}
-
-	return strings.Join(trimmed, ",") + " " + serialize(key)
-}
-
-// HashHostname hashes the given hostname. The hostname is not
-// normalized before hashing.
-func HashHostname(hostname string) string {
-	// TODO(hanwen): check if we can safely normalize this always.
-	salt := make([]byte, sha1.Size)
-
-	_, err := rand.Read(salt)
-	if err != nil {
-		panic(fmt.Sprintf("crypto/rand failure %v", err))
-	}
-
-	hash := hashHost(hostname, salt)
-	return encodeHash(sha1HashType, salt, hash)
-}
-
-func decodeHash(encoded string) (hashType string, salt, hash []byte, err error) {
-	if len(encoded) == 0 || encoded[0] != '|' {
-		err = errors.New("knownhosts: hashed host must start with '|'")
-		return
-	}
-	components := strings.Split(encoded, "|")
-	if len(components) != 4 {
-		err = fmt.Errorf("knownhosts: got %d components, want 3", len(components))
-		return
-	}
-
-	hashType = components[1]
-	if salt, err = base64.StdEncoding.DecodeString(components[2]); err != nil {
-		return
-	}
-	if hash, err = base64.StdEncoding.DecodeString(components[3]); err != nil {
-		return
-	}
-	return
-}
-
-func encodeHash(typ string, salt []byte, hash []byte) string {
-	return strings.Join([]string{"",
-		typ,
-		base64.StdEncoding.EncodeToString(salt),
-		base64.StdEncoding.EncodeToString(hash),
-	}, "|")
-}
-
-// See https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/hostfile.c#120
-func hashHost(hostname string, salt []byte) []byte {
-	mac := hmac.New(sha1.New, salt)
-	mac.Write([]byte(hostname))
-	return mac.Sum(nil)
-}
-
-type hashedHost struct {
-	salt []byte
-	hash []byte
-}
-
-const sha1HashType = "1"
-
-func newHashedHost(encoded string) (*hashedHost, error) {
-	typ, salt, hash, err := decodeHash(encoded)
-	if err != nil {
-		return nil, err
-	}
-
-	// The type field seems for future algorithm agility, but it's
-	// actually hardcoded in openssh currently, see
-	// https://android.googlesource.com/platform/external/openssh/+/ab28f5495c85297e7a597c1ba62e996416da7c7e/hostfile.c#120
-	if typ != sha1HashType {
-		return nil, fmt.Errorf("knownhosts: got hash type %s, must be '1'", typ)
-	}
-
-	return &hashedHost{salt: salt, hash: hash}, nil
-}
-
-func (h *hashedHost) match(a addr) bool {
-	return bytes.Equal(hashHost(Normalize(a.String()), h.salt), h.hash)
-}
diff --git a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts_test.go b/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts_test.go
deleted file mode 100644
index 464dd59..0000000
--- a/vendor/golang.org/x/crypto/ssh/knownhosts/knownhosts_test.go
+++ /dev/null
@@ -1,356 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package knownhosts
-
-import (
-	"bytes"
-	"fmt"
-	"net"
-	"reflect"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-)
-
-const edKeyStr = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGBAarftlLeoyf+v+nVchEZII/vna2PCV8FaX4vsF5BX"
-const alternateEdKeyStr = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIXffBYeYL+WVzVru8npl5JHt2cjlr4ornFTWzoij9sx"
-const ecKeyStr = "ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBNLCu01+wpXe3xB5olXCN4SqU2rQu0qjSRKJO4Bg+JRCPU+ENcgdA5srTU8xYDz/GEa4dzK5ldPw4J/gZgSXCMs="
-
-var ecKey, alternateEdKey, edKey ssh.PublicKey
-var testAddr = &net.TCPAddr{
-	IP:   net.IP{198, 41, 30, 196},
-	Port: 22,
-}
-
-var testAddr6 = &net.TCPAddr{
-	IP: net.IP{198, 41, 30, 196,
-		1, 2, 3, 4,
-		1, 2, 3, 4,
-		1, 2, 3, 4,
-	},
-	Port: 22,
-}
-
-func init() {
-	var err error
-	ecKey, _, _, _, err = ssh.ParseAuthorizedKey([]byte(ecKeyStr))
-	if err != nil {
-		panic(err)
-	}
-	edKey, _, _, _, err = ssh.ParseAuthorizedKey([]byte(edKeyStr))
-	if err != nil {
-		panic(err)
-	}
-	alternateEdKey, _, _, _, err = ssh.ParseAuthorizedKey([]byte(alternateEdKeyStr))
-	if err != nil {
-		panic(err)
-	}
-}
-
-func testDB(t *testing.T, s string) *hostKeyDB {
-	db := newHostKeyDB()
-	if err := db.Read(bytes.NewBufferString(s), "testdb"); err != nil {
-		t.Fatalf("Read: %v", err)
-	}
-
-	return db
-}
-
-func TestRevoked(t *testing.T) {
-	db := testDB(t, "\n\n@revoked * "+edKeyStr+"\n")
-	want := &RevokedError{
-		Revoked: KnownKey{
-			Key:      edKey,
-			Filename: "testdb",
-			Line:     3,
-		},
-	}
-	if err := db.check("", &net.TCPAddr{
-		Port: 42,
-	}, edKey); err == nil {
-		t.Fatal("no error for revoked key")
-	} else if !reflect.DeepEqual(want, err) {
-		t.Fatalf("got %#v, want %#v", want, err)
-	}
-}
-
-func TestHostAuthority(t *testing.T) {
-	for _, m := range []struct {
-		authorityFor string
-		address      string
-
-		good bool
-	}{
-		{authorityFor: "localhost", address: "localhost:22", good: true},
-		{authorityFor: "localhost", address: "localhost", good: false},
-		{authorityFor: "localhost", address: "localhost:1234", good: false},
-		{authorityFor: "[localhost]:1234", address: "localhost:1234", good: true},
-		{authorityFor: "[localhost]:1234", address: "localhost:22", good: false},
-		{authorityFor: "[localhost]:1234", address: "localhost", good: false},
-	} {
-		db := testDB(t, `@cert-authority `+m.authorityFor+` `+edKeyStr)
-		if ok := db.IsHostAuthority(db.lines[0].knownKey.Key, m.address); ok != m.good {
-			t.Errorf("IsHostAuthority: authority %s, address %s, wanted good = %v, got good = %v",
-				m.authorityFor, m.address, m.good, ok)
-		}
-	}
-}
-
-func TestBracket(t *testing.T) {
-	db := testDB(t, `[git.eclipse.org]:29418,[198.41.30.196]:29418 `+edKeyStr)
-
-	if err := db.check("git.eclipse.org:29418", &net.TCPAddr{
-		IP:   net.IP{198, 41, 30, 196},
-		Port: 29418,
-	}, edKey); err != nil {
-		t.Errorf("got error %v, want none", err)
-	}
-
-	if err := db.check("git.eclipse.org:29419", &net.TCPAddr{
-		Port: 42,
-	}, edKey); err == nil {
-		t.Fatalf("no error for unknown address")
-	} else if ke, ok := err.(*KeyError); !ok {
-		t.Fatalf("got type %T, want *KeyError", err)
-	} else if len(ke.Want) > 0 {
-		t.Fatalf("got Want %v, want []", ke.Want)
-	}
-}
-
-func TestNewKeyType(t *testing.T) {
-	str := fmt.Sprintf("%s %s", testAddr, edKeyStr)
-	db := testDB(t, str)
-	if err := db.check("", testAddr, ecKey); err == nil {
-		t.Fatalf("no error for unknown address")
-	} else if ke, ok := err.(*KeyError); !ok {
-		t.Fatalf("got type %T, want *KeyError", err)
-	} else if len(ke.Want) == 0 {
-		t.Fatalf("got empty KeyError.Want")
-	}
-}
-
-func TestSameKeyType(t *testing.T) {
-	str := fmt.Sprintf("%s %s", testAddr, edKeyStr)
-	db := testDB(t, str)
-	if err := db.check("", testAddr, alternateEdKey); err == nil {
-		t.Fatalf("no error for unknown address")
-	} else if ke, ok := err.(*KeyError); !ok {
-		t.Fatalf("got type %T, want *KeyError", err)
-	} else if len(ke.Want) == 0 {
-		t.Fatalf("got empty KeyError.Want")
-	} else if got, want := ke.Want[0].Key.Marshal(), edKey.Marshal(); !bytes.Equal(got, want) {
-		t.Fatalf("got key %q, want %q", got, want)
-	}
-}
-
-func TestIPAddress(t *testing.T) {
-	str := fmt.Sprintf("%s %s", testAddr, edKeyStr)
-	db := testDB(t, str)
-	if err := db.check("", testAddr, edKey); err != nil {
-		t.Errorf("got error %q, want none", err)
-	}
-}
-
-func TestIPv6Address(t *testing.T) {
-	str := fmt.Sprintf("%s %s", testAddr6, edKeyStr)
-	db := testDB(t, str)
-
-	if err := db.check("", testAddr6, edKey); err != nil {
-		t.Errorf("got error %q, want none", err)
-	}
-}
-
-func TestBasic(t *testing.T) {
-	str := fmt.Sprintf("#comment\n\nserver.org,%s %s\notherhost %s", testAddr, edKeyStr, ecKeyStr)
-	db := testDB(t, str)
-	if err := db.check("server.org:22", testAddr, edKey); err != nil {
-		t.Errorf("got error %v, want none", err)
-	}
-
-	want := KnownKey{
-		Key:      edKey,
-		Filename: "testdb",
-		Line:     3,
-	}
-	if err := db.check("server.org:22", testAddr, ecKey); err == nil {
-		t.Errorf("succeeded, want KeyError")
-	} else if ke, ok := err.(*KeyError); !ok {
-		t.Errorf("got %T, want *KeyError", err)
-	} else if len(ke.Want) != 1 {
-		t.Errorf("got %v, want 1 entry", ke)
-	} else if !reflect.DeepEqual(ke.Want[0], want) {
-		t.Errorf("got %v, want %v", ke.Want[0], want)
-	}
-}
-
-func TestHostNamePrecedence(t *testing.T) {
-	var evilAddr = &net.TCPAddr{
-		IP:   net.IP{66, 66, 66, 66},
-		Port: 22,
-	}
-
-	str := fmt.Sprintf("server.org,%s %s\nevil.org,%s %s", testAddr, edKeyStr, evilAddr, ecKeyStr)
-	db := testDB(t, str)
-
-	if err := db.check("server.org:22", evilAddr, ecKey); err == nil {
-		t.Errorf("check succeeded")
-	} else if _, ok := err.(*KeyError); !ok {
-		t.Errorf("got %T, want *KeyError", err)
-	}
-}
-
-func TestDBOrderingPrecedenceKeyType(t *testing.T) {
-	str := fmt.Sprintf("server.org,%s %s\nserver.org,%s %s", testAddr, edKeyStr, testAddr, alternateEdKeyStr)
-	db := testDB(t, str)
-
-	if err := db.check("server.org:22", testAddr, alternateEdKey); err == nil {
-		t.Errorf("check succeeded")
-	} else if _, ok := err.(*KeyError); !ok {
-		t.Errorf("got %T, want *KeyError", err)
-	}
-}
-
-func TestNegate(t *testing.T) {
-	str := fmt.Sprintf("%s,!server.org %s", testAddr, edKeyStr)
-	db := testDB(t, str)
-	if err := db.check("server.org:22", testAddr, ecKey); err == nil {
-		t.Errorf("succeeded")
-	} else if ke, ok := err.(*KeyError); !ok {
-		t.Errorf("got error type %T, want *KeyError", err)
-	} else if len(ke.Want) != 0 {
-		t.Errorf("got expected keys %d (first of type %s), want []", len(ke.Want), ke.Want[0].Key.Type())
-	}
-}
-
-func TestWildcard(t *testing.T) {
-	str := fmt.Sprintf("server*.domain %s", edKeyStr)
-	db := testDB(t, str)
-
-	want := &KeyError{
-		Want: []KnownKey{{
-			Filename: "testdb",
-			Line:     1,
-			Key:      edKey,
-		}},
-	}
-
-	got := db.check("server.domain:22", &net.TCPAddr{}, ecKey)
-	if !reflect.DeepEqual(got, want) {
-		t.Errorf("got %s, want %s", got, want)
-	}
-}
-
-func TestLine(t *testing.T) {
-	for in, want := range map[string]string{
-		"server.org":                             "server.org " + edKeyStr,
-		"server.org:22":                          "server.org " + edKeyStr,
-		"server.org:23":                          "[server.org]:23 " + edKeyStr,
-		"[c629:1ec4:102:304:102:304:102:304]:22": "[c629:1ec4:102:304:102:304:102:304] " + edKeyStr,
-		"[c629:1ec4:102:304:102:304:102:304]:23": "[c629:1ec4:102:304:102:304:102:304]:23 " + edKeyStr,
-	} {
-		if got := Line([]string{in}, edKey); got != want {
-			t.Errorf("Line(%q) = %q, want %q", in, got, want)
-		}
-	}
-}
-
-func TestWildcardMatch(t *testing.T) {
-	for _, c := range []struct {
-		pat, str string
-		want     bool
-	}{
-		{"a?b", "abb", true},
-		{"ab", "abc", false},
-		{"abc", "ab", false},
-		{"a*b", "axxxb", true},
-		{"a*b", "axbxb", true},
-		{"a*b", "axbxbc", false},
-		{"a*?", "axbxc", true},
-		{"a*b*", "axxbxxxxxx", true},
-		{"a*b*c", "axxbxxxxxxc", true},
-		{"a*b*?", "axxbxxxxxxc", true},
-		{"a*b*z", "axxbxxbxxxz", true},
-		{"a*b*z", "axxbxxzxxxz", true},
-		{"a*b*z", "axxbxxzxxx", false},
-	} {
-		got := wildcardMatch([]byte(c.pat), []byte(c.str))
-		if got != c.want {
-			t.Errorf("wildcardMatch(%q, %q) = %v, want %v", c.pat, c.str, got, c.want)
-		}
-
-	}
-}
-
-// TODO(hanwen): test coverage for certificates.
-
-const testHostname = "hostname"
-
-// generated with keygen -H -f
-const encodedTestHostnameHash = "|1|IHXZvQMvTcZTUU29+2vXFgx8Frs=|UGccIWfRVDwilMBnA3WJoRAC75Y="
-
-func TestHostHash(t *testing.T) {
-	testHostHash(t, testHostname, encodedTestHostnameHash)
-}
-
-func TestHashList(t *testing.T) {
-	encoded := HashHostname(testHostname)
-	testHostHash(t, testHostname, encoded)
-}
-
-func testHostHash(t *testing.T, hostname, encoded string) {
-	typ, salt, hash, err := decodeHash(encoded)
-	if err != nil {
-		t.Fatalf("decodeHash: %v", err)
-	}
-
-	if got := encodeHash(typ, salt, hash); got != encoded {
-		t.Errorf("got encoding %s want %s", got, encoded)
-	}
-
-	if typ != sha1HashType {
-		t.Fatalf("got hash type %q, want %q", typ, sha1HashType)
-	}
-
-	got := hashHost(hostname, salt)
-	if !bytes.Equal(got, hash) {
-		t.Errorf("got hash %x want %x", got, hash)
-	}
-}
-
-func TestNormalize(t *testing.T) {
-	for in, want := range map[string]string{
-		"127.0.0.1:22":             "127.0.0.1",
-		"[127.0.0.1]:22":           "127.0.0.1",
-		"[127.0.0.1]:23":           "[127.0.0.1]:23",
-		"127.0.0.1:23":             "[127.0.0.1]:23",
-		"[a.b.c]:22":               "a.b.c",
-		"[abcd:abcd:abcd:abcd]":    "[abcd:abcd:abcd:abcd]",
-		"[abcd:abcd:abcd:abcd]:22": "[abcd:abcd:abcd:abcd]",
-		"[abcd:abcd:abcd:abcd]:23": "[abcd:abcd:abcd:abcd]:23",
-	} {
-		got := Normalize(in)
-		if got != want {
-			t.Errorf("Normalize(%q) = %q, want %q", in, got, want)
-		}
-	}
-}
-
-func TestHashedHostkeyCheck(t *testing.T) {
-	str := fmt.Sprintf("%s %s", HashHostname(testHostname), edKeyStr)
-	db := testDB(t, str)
-	if err := db.check(testHostname+":22", testAddr, edKey); err != nil {
-		t.Errorf("check(%s): %v", testHostname, err)
-	}
-	want := &KeyError{
-		Want: []KnownKey{{
-			Filename: "testdb",
-			Line:     1,
-			Key:      edKey,
-		}},
-	}
-	if got := db.check(testHostname+":22", testAddr, alternateEdKey); !reflect.DeepEqual(got, want) {
-		t.Errorf("got error %v, want %v", got, want)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/mac.go b/vendor/golang.org/x/crypto/ssh/mac.go
deleted file mode 100644
index c07a062..0000000
--- a/vendor/golang.org/x/crypto/ssh/mac.go
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-// Message authentication support
-
-import (
-	"crypto/hmac"
-	"crypto/sha1"
-	"crypto/sha256"
-	"hash"
-)
-
-type macMode struct {
-	keySize int
-	etm     bool
-	new     func(key []byte) hash.Hash
-}
-
-// truncatingMAC wraps around a hash.Hash and truncates the output digest to
-// a given size.
-type truncatingMAC struct {
-	length int
-	hmac   hash.Hash
-}
-
-func (t truncatingMAC) Write(data []byte) (int, error) {
-	return t.hmac.Write(data)
-}
-
-func (t truncatingMAC) Sum(in []byte) []byte {
-	out := t.hmac.Sum(in)
-	return out[:len(in)+t.length]
-}
-
-func (t truncatingMAC) Reset() {
-	t.hmac.Reset()
-}
-
-func (t truncatingMAC) Size() int {
-	return t.length
-}
-
-func (t truncatingMAC) BlockSize() int { return t.hmac.BlockSize() }
-
-var macModes = map[string]*macMode{
-	"hmac-sha2-256-etm@openssh.com": {32, true, func(key []byte) hash.Hash {
-		return hmac.New(sha256.New, key)
-	}},
-	"hmac-sha2-256": {32, false, func(key []byte) hash.Hash {
-		return hmac.New(sha256.New, key)
-	}},
-	"hmac-sha1": {20, false, func(key []byte) hash.Hash {
-		return hmac.New(sha1.New, key)
-	}},
-	"hmac-sha1-96": {20, false, func(key []byte) hash.Hash {
-		return truncatingMAC{12, hmac.New(sha1.New, key)}
-	}},
-}
diff --git a/vendor/golang.org/x/crypto/ssh/mempipe_test.go b/vendor/golang.org/x/crypto/ssh/mempipe_test.go
deleted file mode 100644
index 8697cd6..0000000
--- a/vendor/golang.org/x/crypto/ssh/mempipe_test.go
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"io"
-	"sync"
-	"testing"
-)
-
-// An in-memory packetConn. It is safe to call Close and writePacket
-// from different goroutines.
-type memTransport struct {
-	eof     bool
-	pending [][]byte
-	write   *memTransport
-	sync.Mutex
-	*sync.Cond
-}
-
-func (t *memTransport) readPacket() ([]byte, error) {
-	t.Lock()
-	defer t.Unlock()
-	for {
-		if len(t.pending) > 0 {
-			r := t.pending[0]
-			t.pending = t.pending[1:]
-			return r, nil
-		}
-		if t.eof {
-			return nil, io.EOF
-		}
-		t.Cond.Wait()
-	}
-}
-
-func (t *memTransport) closeSelf() error {
-	t.Lock()
-	defer t.Unlock()
-	if t.eof {
-		return io.EOF
-	}
-	t.eof = true
-	t.Cond.Broadcast()
-	return nil
-}
-
-func (t *memTransport) Close() error {
-	err := t.write.closeSelf()
-	t.closeSelf()
-	return err
-}
-
-func (t *memTransport) writePacket(p []byte) error {
-	t.write.Lock()
-	defer t.write.Unlock()
-	if t.write.eof {
-		return io.EOF
-	}
-	c := make([]byte, len(p))
-	copy(c, p)
-	t.write.pending = append(t.write.pending, c)
-	t.write.Cond.Signal()
-	return nil
-}
-
-func memPipe() (a, b packetConn) {
-	t1 := memTransport{}
-	t2 := memTransport{}
-	t1.write = &t2
-	t2.write = &t1
-	t1.Cond = sync.NewCond(&t1.Mutex)
-	t2.Cond = sync.NewCond(&t2.Mutex)
-	return &t1, &t2
-}
-
-func TestMemPipe(t *testing.T) {
-	a, b := memPipe()
-	if err := a.writePacket([]byte{42}); err != nil {
-		t.Fatalf("writePacket: %v", err)
-	}
-	if err := a.Close(); err != nil {
-		t.Fatal("Close: ", err)
-	}
-	p, err := b.readPacket()
-	if err != nil {
-		t.Fatal("readPacket: ", err)
-	}
-	if len(p) != 1 || p[0] != 42 {
-		t.Fatalf("got %v, want {42}", p)
-	}
-	p, err = b.readPacket()
-	if err != io.EOF {
-		t.Fatalf("got %v, %v, want EOF", p, err)
-	}
-}
-
-func TestDoubleClose(t *testing.T) {
-	a, _ := memPipe()
-	err := a.Close()
-	if err != nil {
-		t.Errorf("Close: %v", err)
-	}
-	err = a.Close()
-	if err != io.EOF {
-		t.Errorf("expect EOF on double close.")
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/messages.go b/vendor/golang.org/x/crypto/ssh/messages.go
deleted file mode 100644
index 08d2811..0000000
--- a/vendor/golang.org/x/crypto/ssh/messages.go
+++ /dev/null
@@ -1,766 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"math/big"
-	"reflect"
-	"strconv"
-	"strings"
-)
-
-// These are SSH message type numbers. They are scattered around several
-// documents but many were taken from [SSH-PARAMETERS].
-const (
-	msgIgnore        = 2
-	msgUnimplemented = 3
-	msgDebug         = 4
-	msgNewKeys       = 21
-)
-
-// SSH messages:
-//
-// These structures mirror the wire format of the corresponding SSH messages.
-// They are marshaled using reflection with the marshal and unmarshal functions
-// in this file. The only wrinkle is that a final member of type []byte with a
-// ssh tag of "rest" receives the remainder of a packet when unmarshaling.
-
-// See RFC 4253, section 11.1.
-const msgDisconnect = 1
-
-// disconnectMsg is the message that signals a disconnect. It is also
-// the error type returned from mux.Wait()
-type disconnectMsg struct {
-	Reason   uint32 `sshtype:"1"`
-	Message  string
-	Language string
-}
-
-func (d *disconnectMsg) Error() string {
-	return fmt.Sprintf("ssh: disconnect, reason %d: %s", d.Reason, d.Message)
-}
-
-// See RFC 4253, section 7.1.
-const msgKexInit = 20
-
-type kexInitMsg struct {
-	Cookie                  [16]byte `sshtype:"20"`
-	KexAlgos                []string
-	ServerHostKeyAlgos      []string
-	CiphersClientServer     []string
-	CiphersServerClient     []string
-	MACsClientServer        []string
-	MACsServerClient        []string
-	CompressionClientServer []string
-	CompressionServerClient []string
-	LanguagesClientServer   []string
-	LanguagesServerClient   []string
-	FirstKexFollows         bool
-	Reserved                uint32
-}
-
-// See RFC 4253, section 8.
-
-// Diffie-Helman
-const msgKexDHInit = 30
-
-type kexDHInitMsg struct {
-	X *big.Int `sshtype:"30"`
-}
-
-const msgKexECDHInit = 30
-
-type kexECDHInitMsg struct {
-	ClientPubKey []byte `sshtype:"30"`
-}
-
-const msgKexECDHReply = 31
-
-type kexECDHReplyMsg struct {
-	HostKey         []byte `sshtype:"31"`
-	EphemeralPubKey []byte
-	Signature       []byte
-}
-
-const msgKexDHReply = 31
-
-type kexDHReplyMsg struct {
-	HostKey   []byte `sshtype:"31"`
-	Y         *big.Int
-	Signature []byte
-}
-
-// See RFC 4253, section 10.
-const msgServiceRequest = 5
-
-type serviceRequestMsg struct {
-	Service string `sshtype:"5"`
-}
-
-// See RFC 4253, section 10.
-const msgServiceAccept = 6
-
-type serviceAcceptMsg struct {
-	Service string `sshtype:"6"`
-}
-
-// See RFC 4252, section 5.
-const msgUserAuthRequest = 50
-
-type userAuthRequestMsg struct {
-	User    string `sshtype:"50"`
-	Service string
-	Method  string
-	Payload []byte `ssh:"rest"`
-}
-
-// Used for debug printouts of packets.
-type userAuthSuccessMsg struct {
-}
-
-// See RFC 4252, section 5.1
-const msgUserAuthFailure = 51
-
-type userAuthFailureMsg struct {
-	Methods        []string `sshtype:"51"`
-	PartialSuccess bool
-}
-
-// See RFC 4252, section 5.1
-const msgUserAuthSuccess = 52
-
-// See RFC 4252, section 5.4
-const msgUserAuthBanner = 53
-
-type userAuthBannerMsg struct {
-	Message string `sshtype:"53"`
-	// unused, but required to allow message parsing
-	Language string
-}
-
-// See RFC 4256, section 3.2
-const msgUserAuthInfoRequest = 60
-const msgUserAuthInfoResponse = 61
-
-type userAuthInfoRequestMsg struct {
-	User               string `sshtype:"60"`
-	Instruction        string
-	DeprecatedLanguage string
-	NumPrompts         uint32
-	Prompts            []byte `ssh:"rest"`
-}
-
-// See RFC 4254, section 5.1.
-const msgChannelOpen = 90
-
-type channelOpenMsg struct {
-	ChanType         string `sshtype:"90"`
-	PeersID          uint32
-	PeersWindow      uint32
-	MaxPacketSize    uint32
-	TypeSpecificData []byte `ssh:"rest"`
-}
-
-const msgChannelExtendedData = 95
-const msgChannelData = 94
-
-// Used for debug print outs of packets.
-type channelDataMsg struct {
-	PeersID uint32 `sshtype:"94"`
-	Length  uint32
-	Rest    []byte `ssh:"rest"`
-}
-
-// See RFC 4254, section 5.1.
-const msgChannelOpenConfirm = 91
-
-type channelOpenConfirmMsg struct {
-	PeersID          uint32 `sshtype:"91"`
-	MyID             uint32
-	MyWindow         uint32
-	MaxPacketSize    uint32
-	TypeSpecificData []byte `ssh:"rest"`
-}
-
-// See RFC 4254, section 5.1.
-const msgChannelOpenFailure = 92
-
-type channelOpenFailureMsg struct {
-	PeersID  uint32 `sshtype:"92"`
-	Reason   RejectionReason
-	Message  string
-	Language string
-}
-
-const msgChannelRequest = 98
-
-type channelRequestMsg struct {
-	PeersID             uint32 `sshtype:"98"`
-	Request             string
-	WantReply           bool
-	RequestSpecificData []byte `ssh:"rest"`
-}
-
-// See RFC 4254, section 5.4.
-const msgChannelSuccess = 99
-
-type channelRequestSuccessMsg struct {
-	PeersID uint32 `sshtype:"99"`
-}
-
-// See RFC 4254, section 5.4.
-const msgChannelFailure = 100
-
-type channelRequestFailureMsg struct {
-	PeersID uint32 `sshtype:"100"`
-}
-
-// See RFC 4254, section 5.3
-const msgChannelClose = 97
-
-type channelCloseMsg struct {
-	PeersID uint32 `sshtype:"97"`
-}
-
-// See RFC 4254, section 5.3
-const msgChannelEOF = 96
-
-type channelEOFMsg struct {
-	PeersID uint32 `sshtype:"96"`
-}
-
-// See RFC 4254, section 4
-const msgGlobalRequest = 80
-
-type globalRequestMsg struct {
-	Type      string `sshtype:"80"`
-	WantReply bool
-	Data      []byte `ssh:"rest"`
-}
-
-// See RFC 4254, section 4
-const msgRequestSuccess = 81
-
-type globalRequestSuccessMsg struct {
-	Data []byte `ssh:"rest" sshtype:"81"`
-}
-
-// See RFC 4254, section 4
-const msgRequestFailure = 82
-
-type globalRequestFailureMsg struct {
-	Data []byte `ssh:"rest" sshtype:"82"`
-}
-
-// See RFC 4254, section 5.2
-const msgChannelWindowAdjust = 93
-
-type windowAdjustMsg struct {
-	PeersID         uint32 `sshtype:"93"`
-	AdditionalBytes uint32
-}
-
-// See RFC 4252, section 7
-const msgUserAuthPubKeyOk = 60
-
-type userAuthPubKeyOkMsg struct {
-	Algo   string `sshtype:"60"`
-	PubKey []byte
-}
-
-// typeTags returns the possible type bytes for the given reflect.Type, which
-// should be a struct. The possible values are separated by a '|' character.
-func typeTags(structType reflect.Type) (tags []byte) {
-	tagStr := structType.Field(0).Tag.Get("sshtype")
-
-	for _, tag := range strings.Split(tagStr, "|") {
-		i, err := strconv.Atoi(tag)
-		if err == nil {
-			tags = append(tags, byte(i))
-		}
-	}
-
-	return tags
-}
-
-func fieldError(t reflect.Type, field int, problem string) error {
-	if problem != "" {
-		problem = ": " + problem
-	}
-	return fmt.Errorf("ssh: unmarshal error for field %s of type %s%s", t.Field(field).Name, t.Name(), problem)
-}
-
-var errShortRead = errors.New("ssh: short read")
-
-// Unmarshal parses data in SSH wire format into a structure. The out
-// argument should be a pointer to struct. If the first member of the
-// struct has the "sshtype" tag set to a '|'-separated set of numbers
-// in decimal, the packet must start with one of those numbers. In
-// case of error, Unmarshal returns a ParseError or
-// UnexpectedMessageError.
-func Unmarshal(data []byte, out interface{}) error {
-	v := reflect.ValueOf(out).Elem()
-	structType := v.Type()
-	expectedTypes := typeTags(structType)
-
-	var expectedType byte
-	if len(expectedTypes) > 0 {
-		expectedType = expectedTypes[0]
-	}
-
-	if len(data) == 0 {
-		return parseError(expectedType)
-	}
-
-	if len(expectedTypes) > 0 {
-		goodType := false
-		for _, e := range expectedTypes {
-			if e > 0 && data[0] == e {
-				goodType = true
-				break
-			}
-		}
-		if !goodType {
-			return fmt.Errorf("ssh: unexpected message type %d (expected one of %v)", data[0], expectedTypes)
-		}
-		data = data[1:]
-	}
-
-	var ok bool
-	for i := 0; i < v.NumField(); i++ {
-		field := v.Field(i)
-		t := field.Type()
-		switch t.Kind() {
-		case reflect.Bool:
-			if len(data) < 1 {
-				return errShortRead
-			}
-			field.SetBool(data[0] != 0)
-			data = data[1:]
-		case reflect.Array:
-			if t.Elem().Kind() != reflect.Uint8 {
-				return fieldError(structType, i, "array of unsupported type")
-			}
-			if len(data) < t.Len() {
-				return errShortRead
-			}
-			for j, n := 0, t.Len(); j < n; j++ {
-				field.Index(j).Set(reflect.ValueOf(data[j]))
-			}
-			data = data[t.Len():]
-		case reflect.Uint64:
-			var u64 uint64
-			if u64, data, ok = parseUint64(data); !ok {
-				return errShortRead
-			}
-			field.SetUint(u64)
-		case reflect.Uint32:
-			var u32 uint32
-			if u32, data, ok = parseUint32(data); !ok {
-				return errShortRead
-			}
-			field.SetUint(uint64(u32))
-		case reflect.Uint8:
-			if len(data) < 1 {
-				return errShortRead
-			}
-			field.SetUint(uint64(data[0]))
-			data = data[1:]
-		case reflect.String:
-			var s []byte
-			if s, data, ok = parseString(data); !ok {
-				return fieldError(structType, i, "")
-			}
-			field.SetString(string(s))
-		case reflect.Slice:
-			switch t.Elem().Kind() {
-			case reflect.Uint8:
-				if structType.Field(i).Tag.Get("ssh") == "rest" {
-					field.Set(reflect.ValueOf(data))
-					data = nil
-				} else {
-					var s []byte
-					if s, data, ok = parseString(data); !ok {
-						return errShortRead
-					}
-					field.Set(reflect.ValueOf(s))
-				}
-			case reflect.String:
-				var nl []string
-				if nl, data, ok = parseNameList(data); !ok {
-					return errShortRead
-				}
-				field.Set(reflect.ValueOf(nl))
-			default:
-				return fieldError(structType, i, "slice of unsupported type")
-			}
-		case reflect.Ptr:
-			if t == bigIntType {
-				var n *big.Int
-				if n, data, ok = parseInt(data); !ok {
-					return errShortRead
-				}
-				field.Set(reflect.ValueOf(n))
-			} else {
-				return fieldError(structType, i, "pointer to unsupported type")
-			}
-		default:
-			return fieldError(structType, i, fmt.Sprintf("unsupported type: %v", t))
-		}
-	}
-
-	if len(data) != 0 {
-		return parseError(expectedType)
-	}
-
-	return nil
-}
-
-// Marshal serializes the message in msg to SSH wire format.  The msg
-// argument should be a struct or pointer to struct. If the first
-// member has the "sshtype" tag set to a number in decimal, that
-// number is prepended to the result. If the last of member has the
-// "ssh" tag set to "rest", its contents are appended to the output.
-func Marshal(msg interface{}) []byte {
-	out := make([]byte, 0, 64)
-	return marshalStruct(out, msg)
-}
-
-func marshalStruct(out []byte, msg interface{}) []byte {
-	v := reflect.Indirect(reflect.ValueOf(msg))
-	msgTypes := typeTags(v.Type())
-	if len(msgTypes) > 0 {
-		out = append(out, msgTypes[0])
-	}
-
-	for i, n := 0, v.NumField(); i < n; i++ {
-		field := v.Field(i)
-		switch t := field.Type(); t.Kind() {
-		case reflect.Bool:
-			var v uint8
-			if field.Bool() {
-				v = 1
-			}
-			out = append(out, v)
-		case reflect.Array:
-			if t.Elem().Kind() != reflect.Uint8 {
-				panic(fmt.Sprintf("array of non-uint8 in field %d: %T", i, field.Interface()))
-			}
-			for j, l := 0, t.Len(); j < l; j++ {
-				out = append(out, uint8(field.Index(j).Uint()))
-			}
-		case reflect.Uint32:
-			out = appendU32(out, uint32(field.Uint()))
-		case reflect.Uint64:
-			out = appendU64(out, uint64(field.Uint()))
-		case reflect.Uint8:
-			out = append(out, uint8(field.Uint()))
-		case reflect.String:
-			s := field.String()
-			out = appendInt(out, len(s))
-			out = append(out, s...)
-		case reflect.Slice:
-			switch t.Elem().Kind() {
-			case reflect.Uint8:
-				if v.Type().Field(i).Tag.Get("ssh") != "rest" {
-					out = appendInt(out, field.Len())
-				}
-				out = append(out, field.Bytes()...)
-			case reflect.String:
-				offset := len(out)
-				out = appendU32(out, 0)
-				if n := field.Len(); n > 0 {
-					for j := 0; j < n; j++ {
-						f := field.Index(j)
-						if j != 0 {
-							out = append(out, ',')
-						}
-						out = append(out, f.String()...)
-					}
-					// overwrite length value
-					binary.BigEndian.PutUint32(out[offset:], uint32(len(out)-offset-4))
-				}
-			default:
-				panic(fmt.Sprintf("slice of unknown type in field %d: %T", i, field.Interface()))
-			}
-		case reflect.Ptr:
-			if t == bigIntType {
-				var n *big.Int
-				nValue := reflect.ValueOf(&n)
-				nValue.Elem().Set(field)
-				needed := intLength(n)
-				oldLength := len(out)
-
-				if cap(out)-len(out) < needed {
-					newOut := make([]byte, len(out), 2*(len(out)+needed))
-					copy(newOut, out)
-					out = newOut
-				}
-				out = out[:oldLength+needed]
-				marshalInt(out[oldLength:], n)
-			} else {
-				panic(fmt.Sprintf("pointer to unknown type in field %d: %T", i, field.Interface()))
-			}
-		}
-	}
-
-	return out
-}
-
-var bigOne = big.NewInt(1)
-
-func parseString(in []byte) (out, rest []byte, ok bool) {
-	if len(in) < 4 {
-		return
-	}
-	length := binary.BigEndian.Uint32(in)
-	in = in[4:]
-	if uint32(len(in)) < length {
-		return
-	}
-	out = in[:length]
-	rest = in[length:]
-	ok = true
-	return
-}
-
-var (
-	comma         = []byte{','}
-	emptyNameList = []string{}
-)
-
-func parseNameList(in []byte) (out []string, rest []byte, ok bool) {
-	contents, rest, ok := parseString(in)
-	if !ok {
-		return
-	}
-	if len(contents) == 0 {
-		out = emptyNameList
-		return
-	}
-	parts := bytes.Split(contents, comma)
-	out = make([]string, len(parts))
-	for i, part := range parts {
-		out[i] = string(part)
-	}
-	return
-}
-
-func parseInt(in []byte) (out *big.Int, rest []byte, ok bool) {
-	contents, rest, ok := parseString(in)
-	if !ok {
-		return
-	}
-	out = new(big.Int)
-
-	if len(contents) > 0 && contents[0]&0x80 == 0x80 {
-		// This is a negative number
-		notBytes := make([]byte, len(contents))
-		for i := range notBytes {
-			notBytes[i] = ^contents[i]
-		}
-		out.SetBytes(notBytes)
-		out.Add(out, bigOne)
-		out.Neg(out)
-	} else {
-		// Positive number
-		out.SetBytes(contents)
-	}
-	ok = true
-	return
-}
-
-func parseUint32(in []byte) (uint32, []byte, bool) {
-	if len(in) < 4 {
-		return 0, nil, false
-	}
-	return binary.BigEndian.Uint32(in), in[4:], true
-}
-
-func parseUint64(in []byte) (uint64, []byte, bool) {
-	if len(in) < 8 {
-		return 0, nil, false
-	}
-	return binary.BigEndian.Uint64(in), in[8:], true
-}
-
-func intLength(n *big.Int) int {
-	length := 4 /* length bytes */
-	if n.Sign() < 0 {
-		nMinus1 := new(big.Int).Neg(n)
-		nMinus1.Sub(nMinus1, bigOne)
-		bitLen := nMinus1.BitLen()
-		if bitLen%8 == 0 {
-			// The number will need 0xff padding
-			length++
-		}
-		length += (bitLen + 7) / 8
-	} else if n.Sign() == 0 {
-		// A zero is the zero length string
-	} else {
-		bitLen := n.BitLen()
-		if bitLen%8 == 0 {
-			// The number will need 0x00 padding
-			length++
-		}
-		length += (bitLen + 7) / 8
-	}
-
-	return length
-}
-
-func marshalUint32(to []byte, n uint32) []byte {
-	binary.BigEndian.PutUint32(to, n)
-	return to[4:]
-}
-
-func marshalUint64(to []byte, n uint64) []byte {
-	binary.BigEndian.PutUint64(to, n)
-	return to[8:]
-}
-
-func marshalInt(to []byte, n *big.Int) []byte {
-	lengthBytes := to
-	to = to[4:]
-	length := 0
-
-	if n.Sign() < 0 {
-		// A negative number has to be converted to two's-complement
-		// form. So we'll subtract 1 and invert. If the
-		// most-significant-bit isn't set then we'll need to pad the
-		// beginning with 0xff in order to keep the number negative.
-		nMinus1 := new(big.Int).Neg(n)
-		nMinus1.Sub(nMinus1, bigOne)
-		bytes := nMinus1.Bytes()
-		for i := range bytes {
-			bytes[i] ^= 0xff
-		}
-		if len(bytes) == 0 || bytes[0]&0x80 == 0 {
-			to[0] = 0xff
-			to = to[1:]
-			length++
-		}
-		nBytes := copy(to, bytes)
-		to = to[nBytes:]
-		length += nBytes
-	} else if n.Sign() == 0 {
-		// A zero is the zero length string
-	} else {
-		bytes := n.Bytes()
-		if len(bytes) > 0 && bytes[0]&0x80 != 0 {
-			// We'll have to pad this with a 0x00 in order to
-			// stop it looking like a negative number.
-			to[0] = 0
-			to = to[1:]
-			length++
-		}
-		nBytes := copy(to, bytes)
-		to = to[nBytes:]
-		length += nBytes
-	}
-
-	lengthBytes[0] = byte(length >> 24)
-	lengthBytes[1] = byte(length >> 16)
-	lengthBytes[2] = byte(length >> 8)
-	lengthBytes[3] = byte(length)
-	return to
-}
-
-func writeInt(w io.Writer, n *big.Int) {
-	length := intLength(n)
-	buf := make([]byte, length)
-	marshalInt(buf, n)
-	w.Write(buf)
-}
-
-func writeString(w io.Writer, s []byte) {
-	var lengthBytes [4]byte
-	lengthBytes[0] = byte(len(s) >> 24)
-	lengthBytes[1] = byte(len(s) >> 16)
-	lengthBytes[2] = byte(len(s) >> 8)
-	lengthBytes[3] = byte(len(s))
-	w.Write(lengthBytes[:])
-	w.Write(s)
-}
-
-func stringLength(n int) int {
-	return 4 + n
-}
-
-func marshalString(to []byte, s []byte) []byte {
-	to[0] = byte(len(s) >> 24)
-	to[1] = byte(len(s) >> 16)
-	to[2] = byte(len(s) >> 8)
-	to[3] = byte(len(s))
-	to = to[4:]
-	copy(to, s)
-	return to[len(s):]
-}
-
-var bigIntType = reflect.TypeOf((*big.Int)(nil))
-
-// Decode a packet into its corresponding message.
-func decode(packet []byte) (interface{}, error) {
-	var msg interface{}
-	switch packet[0] {
-	case msgDisconnect:
-		msg = new(disconnectMsg)
-	case msgServiceRequest:
-		msg = new(serviceRequestMsg)
-	case msgServiceAccept:
-		msg = new(serviceAcceptMsg)
-	case msgKexInit:
-		msg = new(kexInitMsg)
-	case msgKexDHInit:
-		msg = new(kexDHInitMsg)
-	case msgKexDHReply:
-		msg = new(kexDHReplyMsg)
-	case msgUserAuthRequest:
-		msg = new(userAuthRequestMsg)
-	case msgUserAuthSuccess:
-		return new(userAuthSuccessMsg), nil
-	case msgUserAuthFailure:
-		msg = new(userAuthFailureMsg)
-	case msgUserAuthPubKeyOk:
-		msg = new(userAuthPubKeyOkMsg)
-	case msgGlobalRequest:
-		msg = new(globalRequestMsg)
-	case msgRequestSuccess:
-		msg = new(globalRequestSuccessMsg)
-	case msgRequestFailure:
-		msg = new(globalRequestFailureMsg)
-	case msgChannelOpen:
-		msg = new(channelOpenMsg)
-	case msgChannelData:
-		msg = new(channelDataMsg)
-	case msgChannelOpenConfirm:
-		msg = new(channelOpenConfirmMsg)
-	case msgChannelOpenFailure:
-		msg = new(channelOpenFailureMsg)
-	case msgChannelWindowAdjust:
-		msg = new(windowAdjustMsg)
-	case msgChannelEOF:
-		msg = new(channelEOFMsg)
-	case msgChannelClose:
-		msg = new(channelCloseMsg)
-	case msgChannelRequest:
-		msg = new(channelRequestMsg)
-	case msgChannelSuccess:
-		msg = new(channelRequestSuccessMsg)
-	case msgChannelFailure:
-		msg = new(channelRequestFailureMsg)
-	default:
-		return nil, unexpectedMessageError(0, packet[0])
-	}
-	if err := Unmarshal(packet, msg); err != nil {
-		return nil, err
-	}
-	return msg, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/messages_test.go b/vendor/golang.org/x/crypto/ssh/messages_test.go
deleted file mode 100644
index e790764..0000000
--- a/vendor/golang.org/x/crypto/ssh/messages_test.go
+++ /dev/null
@@ -1,288 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"math/big"
-	"math/rand"
-	"reflect"
-	"testing"
-	"testing/quick"
-)
-
-var intLengthTests = []struct {
-	val, length int
-}{
-	{0, 4 + 0},
-	{1, 4 + 1},
-	{127, 4 + 1},
-	{128, 4 + 2},
-	{-1, 4 + 1},
-}
-
-func TestIntLength(t *testing.T) {
-	for _, test := range intLengthTests {
-		v := new(big.Int).SetInt64(int64(test.val))
-		length := intLength(v)
-		if length != test.length {
-			t.Errorf("For %d, got length %d but expected %d", test.val, length, test.length)
-		}
-	}
-}
-
-type msgAllTypes struct {
-	Bool    bool `sshtype:"21"`
-	Array   [16]byte
-	Uint64  uint64
-	Uint32  uint32
-	Uint8   uint8
-	String  string
-	Strings []string
-	Bytes   []byte
-	Int     *big.Int
-	Rest    []byte `ssh:"rest"`
-}
-
-func (t *msgAllTypes) Generate(rand *rand.Rand, size int) reflect.Value {
-	m := &msgAllTypes{}
-	m.Bool = rand.Intn(2) == 1
-	randomBytes(m.Array[:], rand)
-	m.Uint64 = uint64(rand.Int63n(1<<63 - 1))
-	m.Uint32 = uint32(rand.Intn((1 << 31) - 1))
-	m.Uint8 = uint8(rand.Intn(1 << 8))
-	m.String = string(m.Array[:])
-	m.Strings = randomNameList(rand)
-	m.Bytes = m.Array[:]
-	m.Int = randomInt(rand)
-	m.Rest = m.Array[:]
-	return reflect.ValueOf(m)
-}
-
-func TestMarshalUnmarshal(t *testing.T) {
-	rand := rand.New(rand.NewSource(0))
-	iface := &msgAllTypes{}
-	ty := reflect.ValueOf(iface).Type()
-
-	n := 100
-	if testing.Short() {
-		n = 5
-	}
-	for j := 0; j < n; j++ {
-		v, ok := quick.Value(ty, rand)
-		if !ok {
-			t.Errorf("failed to create value")
-			break
-		}
-
-		m1 := v.Elem().Interface()
-		m2 := iface
-
-		marshaled := Marshal(m1)
-		if err := Unmarshal(marshaled, m2); err != nil {
-			t.Errorf("Unmarshal %#v: %s", m1, err)
-			break
-		}
-
-		if !reflect.DeepEqual(v.Interface(), m2) {
-			t.Errorf("got: %#v\nwant:%#v\n%x", m2, m1, marshaled)
-			break
-		}
-	}
-}
-
-func TestUnmarshalEmptyPacket(t *testing.T) {
-	var b []byte
-	var m channelRequestSuccessMsg
-	if err := Unmarshal(b, &m); err == nil {
-		t.Fatalf("unmarshal of empty slice succeeded")
-	}
-}
-
-func TestUnmarshalUnexpectedPacket(t *testing.T) {
-	type S struct {
-		I uint32 `sshtype:"43"`
-		S string
-		B bool
-	}
-
-	s := S{11, "hello", true}
-	packet := Marshal(s)
-	packet[0] = 42
-	roundtrip := S{}
-	err := Unmarshal(packet, &roundtrip)
-	if err == nil {
-		t.Fatal("expected error, not nil")
-	}
-}
-
-func TestMarshalPtr(t *testing.T) {
-	s := struct {
-		S string
-	}{"hello"}
-
-	m1 := Marshal(s)
-	m2 := Marshal(&s)
-	if !bytes.Equal(m1, m2) {
-		t.Errorf("got %q, want %q for marshaled pointer", m2, m1)
-	}
-}
-
-func TestBareMarshalUnmarshal(t *testing.T) {
-	type S struct {
-		I uint32
-		S string
-		B bool
-	}
-
-	s := S{42, "hello", true}
-	packet := Marshal(s)
-	roundtrip := S{}
-	Unmarshal(packet, &roundtrip)
-
-	if !reflect.DeepEqual(s, roundtrip) {
-		t.Errorf("got %#v, want %#v", roundtrip, s)
-	}
-}
-
-func TestBareMarshal(t *testing.T) {
-	type S2 struct {
-		I uint32
-	}
-	s := S2{42}
-	packet := Marshal(s)
-	i, rest, ok := parseUint32(packet)
-	if len(rest) > 0 || !ok {
-		t.Errorf("parseInt(%q): parse error", packet)
-	}
-	if i != s.I {
-		t.Errorf("got %d, want %d", i, s.I)
-	}
-}
-
-func TestUnmarshalShortKexInitPacket(t *testing.T) {
-	// This used to panic.
-	// Issue 11348
-	packet := []byte{0x14, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0xff, 0xff, 0xff, 0xff}
-	kim := &kexInitMsg{}
-	if err := Unmarshal(packet, kim); err == nil {
-		t.Error("truncated packet unmarshaled without error")
-	}
-}
-
-func TestMarshalMultiTag(t *testing.T) {
-	var res struct {
-		A uint32 `sshtype:"1|2"`
-	}
-
-	good1 := struct {
-		A uint32 `sshtype:"1"`
-	}{
-		1,
-	}
-	good2 := struct {
-		A uint32 `sshtype:"2"`
-	}{
-		1,
-	}
-
-	if e := Unmarshal(Marshal(good1), &res); e != nil {
-		t.Errorf("error unmarshaling multipart tag: %v", e)
-	}
-
-	if e := Unmarshal(Marshal(good2), &res); e != nil {
-		t.Errorf("error unmarshaling multipart tag: %v", e)
-	}
-
-	bad1 := struct {
-		A uint32 `sshtype:"3"`
-	}{
-		1,
-	}
-	if e := Unmarshal(Marshal(bad1), &res); e == nil {
-		t.Errorf("bad struct unmarshaled without error")
-	}
-}
-
-func randomBytes(out []byte, rand *rand.Rand) {
-	for i := 0; i < len(out); i++ {
-		out[i] = byte(rand.Int31())
-	}
-}
-
-func randomNameList(rand *rand.Rand) []string {
-	ret := make([]string, rand.Int31()&15)
-	for i := range ret {
-		s := make([]byte, 1+(rand.Int31()&15))
-		for j := range s {
-			s[j] = 'a' + uint8(rand.Int31()&15)
-		}
-		ret[i] = string(s)
-	}
-	return ret
-}
-
-func randomInt(rand *rand.Rand) *big.Int {
-	return new(big.Int).SetInt64(int64(int32(rand.Uint32())))
-}
-
-func (*kexInitMsg) Generate(rand *rand.Rand, size int) reflect.Value {
-	ki := &kexInitMsg{}
-	randomBytes(ki.Cookie[:], rand)
-	ki.KexAlgos = randomNameList(rand)
-	ki.ServerHostKeyAlgos = randomNameList(rand)
-	ki.CiphersClientServer = randomNameList(rand)
-	ki.CiphersServerClient = randomNameList(rand)
-	ki.MACsClientServer = randomNameList(rand)
-	ki.MACsServerClient = randomNameList(rand)
-	ki.CompressionClientServer = randomNameList(rand)
-	ki.CompressionServerClient = randomNameList(rand)
-	ki.LanguagesClientServer = randomNameList(rand)
-	ki.LanguagesServerClient = randomNameList(rand)
-	if rand.Int31()&1 == 1 {
-		ki.FirstKexFollows = true
-	}
-	return reflect.ValueOf(ki)
-}
-
-func (*kexDHInitMsg) Generate(rand *rand.Rand, size int) reflect.Value {
-	dhi := &kexDHInitMsg{}
-	dhi.X = randomInt(rand)
-	return reflect.ValueOf(dhi)
-}
-
-var (
-	_kexInitMsg   = new(kexInitMsg).Generate(rand.New(rand.NewSource(0)), 10).Elem().Interface()
-	_kexDHInitMsg = new(kexDHInitMsg).Generate(rand.New(rand.NewSource(0)), 10).Elem().Interface()
-
-	_kexInit   = Marshal(_kexInitMsg)
-	_kexDHInit = Marshal(_kexDHInitMsg)
-)
-
-func BenchmarkMarshalKexInitMsg(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		Marshal(_kexInitMsg)
-	}
-}
-
-func BenchmarkUnmarshalKexInitMsg(b *testing.B) {
-	m := new(kexInitMsg)
-	for i := 0; i < b.N; i++ {
-		Unmarshal(_kexInit, m)
-	}
-}
-
-func BenchmarkMarshalKexDHInitMsg(b *testing.B) {
-	for i := 0; i < b.N; i++ {
-		Marshal(_kexDHInitMsg)
-	}
-}
-
-func BenchmarkUnmarshalKexDHInitMsg(b *testing.B) {
-	m := new(kexDHInitMsg)
-	for i := 0; i < b.N; i++ {
-		Unmarshal(_kexDHInit, m)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/mux.go b/vendor/golang.org/x/crypto/ssh/mux.go
deleted file mode 100644
index f190162..0000000
--- a/vendor/golang.org/x/crypto/ssh/mux.go
+++ /dev/null
@@ -1,330 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"encoding/binary"
-	"fmt"
-	"io"
-	"log"
-	"sync"
-	"sync/atomic"
-)
-
-// debugMux, if set, causes messages in the connection protocol to be
-// logged.
-const debugMux = false
-
-// chanList is a thread safe channel list.
-type chanList struct {
-	// protects concurrent access to chans
-	sync.Mutex
-
-	// chans are indexed by the local id of the channel, which the
-	// other side should send in the PeersId field.
-	chans []*channel
-
-	// This is a debugging aid: it offsets all IDs by this
-	// amount. This helps distinguish otherwise identical
-	// server/client muxes
-	offset uint32
-}
-
-// Assigns a channel ID to the given channel.
-func (c *chanList) add(ch *channel) uint32 {
-	c.Lock()
-	defer c.Unlock()
-	for i := range c.chans {
-		if c.chans[i] == nil {
-			c.chans[i] = ch
-			return uint32(i) + c.offset
-		}
-	}
-	c.chans = append(c.chans, ch)
-	return uint32(len(c.chans)-1) + c.offset
-}
-
-// getChan returns the channel for the given ID.
-func (c *chanList) getChan(id uint32) *channel {
-	id -= c.offset
-
-	c.Lock()
-	defer c.Unlock()
-	if id < uint32(len(c.chans)) {
-		return c.chans[id]
-	}
-	return nil
-}
-
-func (c *chanList) remove(id uint32) {
-	id -= c.offset
-	c.Lock()
-	if id < uint32(len(c.chans)) {
-		c.chans[id] = nil
-	}
-	c.Unlock()
-}
-
-// dropAll forgets all channels it knows, returning them in a slice.
-func (c *chanList) dropAll() []*channel {
-	c.Lock()
-	defer c.Unlock()
-	var r []*channel
-
-	for _, ch := range c.chans {
-		if ch == nil {
-			continue
-		}
-		r = append(r, ch)
-	}
-	c.chans = nil
-	return r
-}
-
-// mux represents the state for the SSH connection protocol, which
-// multiplexes many channels onto a single packet transport.
-type mux struct {
-	conn     packetConn
-	chanList chanList
-
-	incomingChannels chan NewChannel
-
-	globalSentMu     sync.Mutex
-	globalResponses  chan interface{}
-	incomingRequests chan *Request
-
-	errCond *sync.Cond
-	err     error
-}
-
-// When debugging, each new chanList instantiation has a different
-// offset.
-var globalOff uint32
-
-func (m *mux) Wait() error {
-	m.errCond.L.Lock()
-	defer m.errCond.L.Unlock()
-	for m.err == nil {
-		m.errCond.Wait()
-	}
-	return m.err
-}
-
-// newMux returns a mux that runs over the given connection.
-func newMux(p packetConn) *mux {
-	m := &mux{
-		conn:             p,
-		incomingChannels: make(chan NewChannel, chanSize),
-		globalResponses:  make(chan interface{}, 1),
-		incomingRequests: make(chan *Request, chanSize),
-		errCond:          newCond(),
-	}
-	if debugMux {
-		m.chanList.offset = atomic.AddUint32(&globalOff, 1)
-	}
-
-	go m.loop()
-	return m
-}
-
-func (m *mux) sendMessage(msg interface{}) error {
-	p := Marshal(msg)
-	if debugMux {
-		log.Printf("send global(%d): %#v", m.chanList.offset, msg)
-	}
-	return m.conn.writePacket(p)
-}
-
-func (m *mux) SendRequest(name string, wantReply bool, payload []byte) (bool, []byte, error) {
-	if wantReply {
-		m.globalSentMu.Lock()
-		defer m.globalSentMu.Unlock()
-	}
-
-	if err := m.sendMessage(globalRequestMsg{
-		Type:      name,
-		WantReply: wantReply,
-		Data:      payload,
-	}); err != nil {
-		return false, nil, err
-	}
-
-	if !wantReply {
-		return false, nil, nil
-	}
-
-	msg, ok := <-m.globalResponses
-	if !ok {
-		return false, nil, io.EOF
-	}
-	switch msg := msg.(type) {
-	case *globalRequestFailureMsg:
-		return false, msg.Data, nil
-	case *globalRequestSuccessMsg:
-		return true, msg.Data, nil
-	default:
-		return false, nil, fmt.Errorf("ssh: unexpected response to request: %#v", msg)
-	}
-}
-
-// ackRequest must be called after processing a global request that
-// has WantReply set.
-func (m *mux) ackRequest(ok bool, data []byte) error {
-	if ok {
-		return m.sendMessage(globalRequestSuccessMsg{Data: data})
-	}
-	return m.sendMessage(globalRequestFailureMsg{Data: data})
-}
-
-func (m *mux) Close() error {
-	return m.conn.Close()
-}
-
-// loop runs the connection machine. It will process packets until an
-// error is encountered. To synchronize on loop exit, use mux.Wait.
-func (m *mux) loop() {
-	var err error
-	for err == nil {
-		err = m.onePacket()
-	}
-
-	for _, ch := range m.chanList.dropAll() {
-		ch.close()
-	}
-
-	close(m.incomingChannels)
-	close(m.incomingRequests)
-	close(m.globalResponses)
-
-	m.conn.Close()
-
-	m.errCond.L.Lock()
-	m.err = err
-	m.errCond.Broadcast()
-	m.errCond.L.Unlock()
-
-	if debugMux {
-		log.Println("loop exit", err)
-	}
-}
-
-// onePacket reads and processes one packet.
-func (m *mux) onePacket() error {
-	packet, err := m.conn.readPacket()
-	if err != nil {
-		return err
-	}
-
-	if debugMux {
-		if packet[0] == msgChannelData || packet[0] == msgChannelExtendedData {
-			log.Printf("decoding(%d): data packet - %d bytes", m.chanList.offset, len(packet))
-		} else {
-			p, _ := decode(packet)
-			log.Printf("decoding(%d): %d %#v - %d bytes", m.chanList.offset, packet[0], p, len(packet))
-		}
-	}
-
-	switch packet[0] {
-	case msgChannelOpen:
-		return m.handleChannelOpen(packet)
-	case msgGlobalRequest, msgRequestSuccess, msgRequestFailure:
-		return m.handleGlobalPacket(packet)
-	}
-
-	// assume a channel packet.
-	if len(packet) < 5 {
-		return parseError(packet[0])
-	}
-	id := binary.BigEndian.Uint32(packet[1:])
-	ch := m.chanList.getChan(id)
-	if ch == nil {
-		return fmt.Errorf("ssh: invalid channel %d", id)
-	}
-
-	return ch.handlePacket(packet)
-}
-
-func (m *mux) handleGlobalPacket(packet []byte) error {
-	msg, err := decode(packet)
-	if err != nil {
-		return err
-	}
-
-	switch msg := msg.(type) {
-	case *globalRequestMsg:
-		m.incomingRequests <- &Request{
-			Type:      msg.Type,
-			WantReply: msg.WantReply,
-			Payload:   msg.Data,
-			mux:       m,
-		}
-	case *globalRequestSuccessMsg, *globalRequestFailureMsg:
-		m.globalResponses <- msg
-	default:
-		panic(fmt.Sprintf("not a global message %#v", msg))
-	}
-
-	return nil
-}
-
-// handleChannelOpen schedules a channel to be Accept()ed.
-func (m *mux) handleChannelOpen(packet []byte) error {
-	var msg channelOpenMsg
-	if err := Unmarshal(packet, &msg); err != nil {
-		return err
-	}
-
-	if msg.MaxPacketSize < minPacketLength || msg.MaxPacketSize > 1<<31 {
-		failMsg := channelOpenFailureMsg{
-			PeersID:  msg.PeersID,
-			Reason:   ConnectionFailed,
-			Message:  "invalid request",
-			Language: "en_US.UTF-8",
-		}
-		return m.sendMessage(failMsg)
-	}
-
-	c := m.newChannel(msg.ChanType, channelInbound, msg.TypeSpecificData)
-	c.remoteId = msg.PeersID
-	c.maxRemotePayload = msg.MaxPacketSize
-	c.remoteWin.add(msg.PeersWindow)
-	m.incomingChannels <- c
-	return nil
-}
-
-func (m *mux) OpenChannel(chanType string, extra []byte) (Channel, <-chan *Request, error) {
-	ch, err := m.openChannel(chanType, extra)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	return ch, ch.incomingRequests, nil
-}
-
-func (m *mux) openChannel(chanType string, extra []byte) (*channel, error) {
-	ch := m.newChannel(chanType, channelOutbound, extra)
-
-	ch.maxIncomingPayload = channelMaxPacket
-
-	open := channelOpenMsg{
-		ChanType:         chanType,
-		PeersWindow:      ch.myWindow,
-		MaxPacketSize:    ch.maxIncomingPayload,
-		TypeSpecificData: extra,
-		PeersID:          ch.localId,
-	}
-	if err := m.sendMessage(open); err != nil {
-		return nil, err
-	}
-
-	switch msg := (<-ch.msg).(type) {
-	case *channelOpenConfirmMsg:
-		return ch, nil
-	case *channelOpenFailureMsg:
-		return nil, &OpenChannelError{msg.Reason, msg.Message}
-	default:
-		return nil, fmt.Errorf("ssh: unexpected packet in response to channel open: %T", msg)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/mux_test.go b/vendor/golang.org/x/crypto/ssh/mux_test.go
deleted file mode 100644
index d88b64e..0000000
--- a/vendor/golang.org/x/crypto/ssh/mux_test.go
+++ /dev/null
@@ -1,501 +0,0 @@
-// Copyright 2013 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"io"
-	"io/ioutil"
-	"sync"
-	"testing"
-)
-
-func muxPair() (*mux, *mux) {
-	a, b := memPipe()
-
-	s := newMux(a)
-	c := newMux(b)
-
-	return s, c
-}
-
-// Returns both ends of a channel, and the mux for the the 2nd
-// channel.
-func channelPair(t *testing.T) (*channel, *channel, *mux) {
-	c, s := muxPair()
-
-	res := make(chan *channel, 1)
-	go func() {
-		newCh, ok := <-s.incomingChannels
-		if !ok {
-			t.Fatalf("No incoming channel")
-		}
-		if newCh.ChannelType() != "chan" {
-			t.Fatalf("got type %q want chan", newCh.ChannelType())
-		}
-		ch, _, err := newCh.Accept()
-		if err != nil {
-			t.Fatalf("Accept %v", err)
-		}
-		res <- ch.(*channel)
-	}()
-
-	ch, err := c.openChannel("chan", nil)
-	if err != nil {
-		t.Fatalf("OpenChannel: %v", err)
-	}
-
-	return <-res, ch, c
-}
-
-// Test that stderr and stdout can be addressed from different
-// goroutines. This is intended for use with the race detector.
-func TestMuxChannelExtendedThreadSafety(t *testing.T) {
-	writer, reader, mux := channelPair(t)
-	defer writer.Close()
-	defer reader.Close()
-	defer mux.Close()
-
-	var wr, rd sync.WaitGroup
-	magic := "hello world"
-
-	wr.Add(2)
-	go func() {
-		io.WriteString(writer, magic)
-		wr.Done()
-	}()
-	go func() {
-		io.WriteString(writer.Stderr(), magic)
-		wr.Done()
-	}()
-
-	rd.Add(2)
-	go func() {
-		c, err := ioutil.ReadAll(reader)
-		if string(c) != magic {
-			t.Fatalf("stdout read got %q, want %q (error %s)", c, magic, err)
-		}
-		rd.Done()
-	}()
-	go func() {
-		c, err := ioutil.ReadAll(reader.Stderr())
-		if string(c) != magic {
-			t.Fatalf("stderr read got %q, want %q (error %s)", c, magic, err)
-		}
-		rd.Done()
-	}()
-
-	wr.Wait()
-	writer.CloseWrite()
-	rd.Wait()
-}
-
-func TestMuxReadWrite(t *testing.T) {
-	s, c, mux := channelPair(t)
-	defer s.Close()
-	defer c.Close()
-	defer mux.Close()
-
-	magic := "hello world"
-	magicExt := "hello stderr"
-	go func() {
-		_, err := s.Write([]byte(magic))
-		if err != nil {
-			t.Fatalf("Write: %v", err)
-		}
-		_, err = s.Extended(1).Write([]byte(magicExt))
-		if err != nil {
-			t.Fatalf("Write: %v", err)
-		}
-	}()
-
-	var buf [1024]byte
-	n, err := c.Read(buf[:])
-	if err != nil {
-		t.Fatalf("server Read: %v", err)
-	}
-	got := string(buf[:n])
-	if got != magic {
-		t.Fatalf("server: got %q want %q", got, magic)
-	}
-
-	n, err = c.Extended(1).Read(buf[:])
-	if err != nil {
-		t.Fatalf("server Read: %v", err)
-	}
-
-	got = string(buf[:n])
-	if got != magicExt {
-		t.Fatalf("server: got %q want %q", got, magic)
-	}
-}
-
-func TestMuxChannelOverflow(t *testing.T) {
-	reader, writer, mux := channelPair(t)
-	defer reader.Close()
-	defer writer.Close()
-	defer mux.Close()
-
-	wDone := make(chan int, 1)
-	go func() {
-		if _, err := writer.Write(make([]byte, channelWindowSize)); err != nil {
-			t.Errorf("could not fill window: %v", err)
-		}
-		writer.Write(make([]byte, 1))
-		wDone <- 1
-	}()
-	writer.remoteWin.waitWriterBlocked()
-
-	// Send 1 byte.
-	packet := make([]byte, 1+4+4+1)
-	packet[0] = msgChannelData
-	marshalUint32(packet[1:], writer.remoteId)
-	marshalUint32(packet[5:], uint32(1))
-	packet[9] = 42
-
-	if err := writer.mux.conn.writePacket(packet); err != nil {
-		t.Errorf("could not send packet")
-	}
-	if _, err := reader.SendRequest("hello", true, nil); err == nil {
-		t.Errorf("SendRequest succeeded.")
-	}
-	<-wDone
-}
-
-func TestMuxChannelCloseWriteUnblock(t *testing.T) {
-	reader, writer, mux := channelPair(t)
-	defer reader.Close()
-	defer writer.Close()
-	defer mux.Close()
-
-	wDone := make(chan int, 1)
-	go func() {
-		if _, err := writer.Write(make([]byte, channelWindowSize)); err != nil {
-			t.Errorf("could not fill window: %v", err)
-		}
-		if _, err := writer.Write(make([]byte, 1)); err != io.EOF {
-			t.Errorf("got %v, want EOF for unblock write", err)
-		}
-		wDone <- 1
-	}()
-
-	writer.remoteWin.waitWriterBlocked()
-	reader.Close()
-	<-wDone
-}
-
-func TestMuxConnectionCloseWriteUnblock(t *testing.T) {
-	reader, writer, mux := channelPair(t)
-	defer reader.Close()
-	defer writer.Close()
-	defer mux.Close()
-
-	wDone := make(chan int, 1)
-	go func() {
-		if _, err := writer.Write(make([]byte, channelWindowSize)); err != nil {
-			t.Errorf("could not fill window: %v", err)
-		}
-		if _, err := writer.Write(make([]byte, 1)); err != io.EOF {
-			t.Errorf("got %v, want EOF for unblock write", err)
-		}
-		wDone <- 1
-	}()
-
-	writer.remoteWin.waitWriterBlocked()
-	mux.Close()
-	<-wDone
-}
-
-func TestMuxReject(t *testing.T) {
-	client, server := muxPair()
-	defer server.Close()
-	defer client.Close()
-
-	go func() {
-		ch, ok := <-server.incomingChannels
-		if !ok {
-			t.Fatalf("Accept")
-		}
-		if ch.ChannelType() != "ch" || string(ch.ExtraData()) != "extra" {
-			t.Fatalf("unexpected channel: %q, %q", ch.ChannelType(), ch.ExtraData())
-		}
-		ch.Reject(RejectionReason(42), "message")
-	}()
-
-	ch, err := client.openChannel("ch", []byte("extra"))
-	if ch != nil {
-		t.Fatal("openChannel not rejected")
-	}
-
-	ocf, ok := err.(*OpenChannelError)
-	if !ok {
-		t.Errorf("got %#v want *OpenChannelError", err)
-	} else if ocf.Reason != 42 || ocf.Message != "message" {
-		t.Errorf("got %#v, want {Reason: 42, Message: %q}", ocf, "message")
-	}
-
-	want := "ssh: rejected: unknown reason 42 (message)"
-	if err.Error() != want {
-		t.Errorf("got %q, want %q", err.Error(), want)
-	}
-}
-
-func TestMuxChannelRequest(t *testing.T) {
-	client, server, mux := channelPair(t)
-	defer server.Close()
-	defer client.Close()
-	defer mux.Close()
-
-	var received int
-	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		for r := range server.incomingRequests {
-			received++
-			r.Reply(r.Type == "yes", nil)
-		}
-		wg.Done()
-	}()
-	_, err := client.SendRequest("yes", false, nil)
-	if err != nil {
-		t.Fatalf("SendRequest: %v", err)
-	}
-	ok, err := client.SendRequest("yes", true, nil)
-	if err != nil {
-		t.Fatalf("SendRequest: %v", err)
-	}
-
-	if !ok {
-		t.Errorf("SendRequest(yes): %v", ok)
-
-	}
-
-	ok, err = client.SendRequest("no", true, nil)
-	if err != nil {
-		t.Fatalf("SendRequest: %v", err)
-	}
-	if ok {
-		t.Errorf("SendRequest(no): %v", ok)
-
-	}
-
-	client.Close()
-	wg.Wait()
-
-	if received != 3 {
-		t.Errorf("got %d requests, want %d", received, 3)
-	}
-}
-
-func TestMuxGlobalRequest(t *testing.T) {
-	clientMux, serverMux := muxPair()
-	defer serverMux.Close()
-	defer clientMux.Close()
-
-	var seen bool
-	go func() {
-		for r := range serverMux.incomingRequests {
-			seen = seen || r.Type == "peek"
-			if r.WantReply {
-				err := r.Reply(r.Type == "yes",
-					append([]byte(r.Type), r.Payload...))
-				if err != nil {
-					t.Errorf("AckRequest: %v", err)
-				}
-			}
-		}
-	}()
-
-	_, _, err := clientMux.SendRequest("peek", false, nil)
-	if err != nil {
-		t.Errorf("SendRequest: %v", err)
-	}
-
-	ok, data, err := clientMux.SendRequest("yes", true, []byte("a"))
-	if !ok || string(data) != "yesa" || err != nil {
-		t.Errorf("SendRequest(\"yes\", true, \"a\"): %v %v %v",
-			ok, data, err)
-	}
-	if ok, data, err := clientMux.SendRequest("yes", true, []byte("a")); !ok || string(data) != "yesa" || err != nil {
-		t.Errorf("SendRequest(\"yes\", true, \"a\"): %v %v %v",
-			ok, data, err)
-	}
-
-	if ok, data, err := clientMux.SendRequest("no", true, []byte("a")); ok || string(data) != "noa" || err != nil {
-		t.Errorf("SendRequest(\"no\", true, \"a\"): %v %v %v",
-			ok, data, err)
-	}
-
-	if !seen {
-		t.Errorf("never saw 'peek' request")
-	}
-}
-
-func TestMuxGlobalRequestUnblock(t *testing.T) {
-	clientMux, serverMux := muxPair()
-	defer serverMux.Close()
-	defer clientMux.Close()
-
-	result := make(chan error, 1)
-	go func() {
-		_, _, err := clientMux.SendRequest("hello", true, nil)
-		result <- err
-	}()
-
-	<-serverMux.incomingRequests
-	serverMux.conn.Close()
-	err := <-result
-
-	if err != io.EOF {
-		t.Errorf("want EOF, got %v", io.EOF)
-	}
-}
-
-func TestMuxChannelRequestUnblock(t *testing.T) {
-	a, b, connB := channelPair(t)
-	defer a.Close()
-	defer b.Close()
-	defer connB.Close()
-
-	result := make(chan error, 1)
-	go func() {
-		_, err := a.SendRequest("hello", true, nil)
-		result <- err
-	}()
-
-	<-b.incomingRequests
-	connB.conn.Close()
-	err := <-result
-
-	if err != io.EOF {
-		t.Errorf("want EOF, got %v", err)
-	}
-}
-
-func TestMuxCloseChannel(t *testing.T) {
-	r, w, mux := channelPair(t)
-	defer mux.Close()
-	defer r.Close()
-	defer w.Close()
-
-	result := make(chan error, 1)
-	go func() {
-		var b [1024]byte
-		_, err := r.Read(b[:])
-		result <- err
-	}()
-	if err := w.Close(); err != nil {
-		t.Errorf("w.Close: %v", err)
-	}
-
-	if _, err := w.Write([]byte("hello")); err != io.EOF {
-		t.Errorf("got err %v, want io.EOF after Close", err)
-	}
-
-	if err := <-result; err != io.EOF {
-		t.Errorf("got %v (%T), want io.EOF", err, err)
-	}
-}
-
-func TestMuxCloseWriteChannel(t *testing.T) {
-	r, w, mux := channelPair(t)
-	defer mux.Close()
-
-	result := make(chan error, 1)
-	go func() {
-		var b [1024]byte
-		_, err := r.Read(b[:])
-		result <- err
-	}()
-	if err := w.CloseWrite(); err != nil {
-		t.Errorf("w.CloseWrite: %v", err)
-	}
-
-	if _, err := w.Write([]byte("hello")); err != io.EOF {
-		t.Errorf("got err %v, want io.EOF after CloseWrite", err)
-	}
-
-	if err := <-result; err != io.EOF {
-		t.Errorf("got %v (%T), want io.EOF", err, err)
-	}
-}
-
-func TestMuxInvalidRecord(t *testing.T) {
-	a, b := muxPair()
-	defer a.Close()
-	defer b.Close()
-
-	packet := make([]byte, 1+4+4+1)
-	packet[0] = msgChannelData
-	marshalUint32(packet[1:], 29348723 /* invalid channel id */)
-	marshalUint32(packet[5:], 1)
-	packet[9] = 42
-
-	a.conn.writePacket(packet)
-	go a.SendRequest("hello", false, nil)
-	// 'a' wrote an invalid packet, so 'b' has exited.
-	req, ok := <-b.incomingRequests
-	if ok {
-		t.Errorf("got request %#v after receiving invalid packet", req)
-	}
-}
-
-func TestZeroWindowAdjust(t *testing.T) {
-	a, b, mux := channelPair(t)
-	defer a.Close()
-	defer b.Close()
-	defer mux.Close()
-
-	go func() {
-		io.WriteString(a, "hello")
-		// bogus adjust.
-		a.sendMessage(windowAdjustMsg{})
-		io.WriteString(a, "world")
-		a.Close()
-	}()
-
-	want := "helloworld"
-	c, _ := ioutil.ReadAll(b)
-	if string(c) != want {
-		t.Errorf("got %q want %q", c, want)
-	}
-}
-
-func TestMuxMaxPacketSize(t *testing.T) {
-	a, b, mux := channelPair(t)
-	defer a.Close()
-	defer b.Close()
-	defer mux.Close()
-
-	large := make([]byte, a.maxRemotePayload+1)
-	packet := make([]byte, 1+4+4+1+len(large))
-	packet[0] = msgChannelData
-	marshalUint32(packet[1:], a.remoteId)
-	marshalUint32(packet[5:], uint32(len(large)))
-	packet[9] = 42
-
-	if err := a.mux.conn.writePacket(packet); err != nil {
-		t.Errorf("could not send packet")
-	}
-
-	go a.SendRequest("hello", false, nil)
-
-	_, ok := <-b.incomingRequests
-	if ok {
-		t.Errorf("connection still alive after receiving large packet.")
-	}
-}
-
-// Don't ship code with debug=true.
-func TestDebug(t *testing.T) {
-	if debugMux {
-		t.Error("mux debug switched on")
-	}
-	if debugHandshake {
-		t.Error("handshake debug switched on")
-	}
-	if debugTransport {
-		t.Error("transport debug switched on")
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/server.go b/vendor/golang.org/x/crypto/ssh/server.go
deleted file mode 100644
index d0f4825..0000000
--- a/vendor/golang.org/x/crypto/ssh/server.go
+++ /dev/null
@@ -1,593 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"strings"
-)
-
-// The Permissions type holds fine-grained permissions that are
-// specific to a user or a specific authentication method for a user.
-// The Permissions value for a successful authentication attempt is
-// available in ServerConn, so it can be used to pass information from
-// the user-authentication phase to the application layer.
-type Permissions struct {
-	// CriticalOptions indicate restrictions to the default
-	// permissions, and are typically used in conjunction with
-	// user certificates. The standard for SSH certificates
-	// defines "force-command" (only allow the given command to
-	// execute) and "source-address" (only allow connections from
-	// the given address). The SSH package currently only enforces
-	// the "source-address" critical option. It is up to server
-	// implementations to enforce other critical options, such as
-	// "force-command", by checking them after the SSH handshake
-	// is successful. In general, SSH servers should reject
-	// connections that specify critical options that are unknown
-	// or not supported.
-	CriticalOptions map[string]string
-
-	// Extensions are extra functionality that the server may
-	// offer on authenticated connections. Lack of support for an
-	// extension does not preclude authenticating a user. Common
-	// extensions are "permit-agent-forwarding",
-	// "permit-X11-forwarding". The Go SSH library currently does
-	// not act on any extension, and it is up to server
-	// implementations to honor them. Extensions can be used to
-	// pass data from the authentication callbacks to the server
-	// application layer.
-	Extensions map[string]string
-}
-
-// ServerConfig holds server specific configuration data.
-type ServerConfig struct {
-	// Config contains configuration shared between client and server.
-	Config
-
-	hostKeys []Signer
-
-	// NoClientAuth is true if clients are allowed to connect without
-	// authenticating.
-	NoClientAuth bool
-
-	// MaxAuthTries specifies the maximum number of authentication attempts
-	// permitted per connection. If set to a negative number, the number of
-	// attempts are unlimited. If set to zero, the number of attempts are limited
-	// to 6.
-	MaxAuthTries int
-
-	// PasswordCallback, if non-nil, is called when a user
-	// attempts to authenticate using a password.
-	PasswordCallback func(conn ConnMetadata, password []byte) (*Permissions, error)
-
-	// PublicKeyCallback, if non-nil, is called when a client
-	// offers a public key for authentication. It must return a nil error
-	// if the given public key can be used to authenticate the
-	// given user. For example, see CertChecker.Authenticate. A
-	// call to this function does not guarantee that the key
-	// offered is in fact used to authenticate. To record any data
-	// depending on the public key, store it inside a
-	// Permissions.Extensions entry.
-	PublicKeyCallback func(conn ConnMetadata, key PublicKey) (*Permissions, error)
-
-	// KeyboardInteractiveCallback, if non-nil, is called when
-	// keyboard-interactive authentication is selected (RFC
-	// 4256). The client object's Challenge function should be
-	// used to query the user. The callback may offer multiple
-	// Challenge rounds. To avoid information leaks, the client
-	// should be presented a challenge even if the user is
-	// unknown.
-	KeyboardInteractiveCallback func(conn ConnMetadata, client KeyboardInteractiveChallenge) (*Permissions, error)
-
-	// AuthLogCallback, if non-nil, is called to log all authentication
-	// attempts.
-	AuthLogCallback func(conn ConnMetadata, method string, err error)
-
-	// ServerVersion is the version identification string to announce in
-	// the public handshake.
-	// If empty, a reasonable default is used.
-	// Note that RFC 4253 section 4.2 requires that this string start with
-	// "SSH-2.0-".
-	ServerVersion string
-
-	// BannerCallback, if present, is called and the return string is sent to
-	// the client after key exchange completed but before authentication.
-	BannerCallback func(conn ConnMetadata) string
-}
-
-// AddHostKey adds a private key as a host key. If an existing host
-// key exists with the same algorithm, it is overwritten. Each server
-// config must have at least one host key.
-func (s *ServerConfig) AddHostKey(key Signer) {
-	for i, k := range s.hostKeys {
-		if k.PublicKey().Type() == key.PublicKey().Type() {
-			s.hostKeys[i] = key
-			return
-		}
-	}
-
-	s.hostKeys = append(s.hostKeys, key)
-}
-
-// cachedPubKey contains the results of querying whether a public key is
-// acceptable for a user.
-type cachedPubKey struct {
-	user       string
-	pubKeyData []byte
-	result     error
-	perms      *Permissions
-}
-
-const maxCachedPubKeys = 16
-
-// pubKeyCache caches tests for public keys.  Since SSH clients
-// will query whether a public key is acceptable before attempting to
-// authenticate with it, we end up with duplicate queries for public
-// key validity.  The cache only applies to a single ServerConn.
-type pubKeyCache struct {
-	keys []cachedPubKey
-}
-
-// get returns the result for a given user/algo/key tuple.
-func (c *pubKeyCache) get(user string, pubKeyData []byte) (cachedPubKey, bool) {
-	for _, k := range c.keys {
-		if k.user == user && bytes.Equal(k.pubKeyData, pubKeyData) {
-			return k, true
-		}
-	}
-	return cachedPubKey{}, false
-}
-
-// add adds the given tuple to the cache.
-func (c *pubKeyCache) add(candidate cachedPubKey) {
-	if len(c.keys) < maxCachedPubKeys {
-		c.keys = append(c.keys, candidate)
-	}
-}
-
-// ServerConn is an authenticated SSH connection, as seen from the
-// server
-type ServerConn struct {
-	Conn
-
-	// If the succeeding authentication callback returned a
-	// non-nil Permissions pointer, it is stored here.
-	Permissions *Permissions
-}
-
-// NewServerConn starts a new SSH server with c as the underlying
-// transport.  It starts with a handshake and, if the handshake is
-// unsuccessful, it closes the connection and returns an error.  The
-// Request and NewChannel channels must be serviced, or the connection
-// will hang.
-//
-// The returned error may be of type *ServerAuthError for
-// authentication errors.
-func NewServerConn(c net.Conn, config *ServerConfig) (*ServerConn, <-chan NewChannel, <-chan *Request, error) {
-	fullConf := *config
-	fullConf.SetDefaults()
-	if fullConf.MaxAuthTries == 0 {
-		fullConf.MaxAuthTries = 6
-	}
-
-	s := &connection{
-		sshConn: sshConn{conn: c},
-	}
-	perms, err := s.serverHandshake(&fullConf)
-	if err != nil {
-		c.Close()
-		return nil, nil, nil, err
-	}
-	return &ServerConn{s, perms}, s.mux.incomingChannels, s.mux.incomingRequests, nil
-}
-
-// signAndMarshal signs the data with the appropriate algorithm,
-// and serializes the result in SSH wire format.
-func signAndMarshal(k Signer, rand io.Reader, data []byte) ([]byte, error) {
-	sig, err := k.Sign(rand, data)
-	if err != nil {
-		return nil, err
-	}
-
-	return Marshal(sig), nil
-}
-
-// handshake performs key exchange and user authentication.
-func (s *connection) serverHandshake(config *ServerConfig) (*Permissions, error) {
-	if len(config.hostKeys) == 0 {
-		return nil, errors.New("ssh: server has no host keys")
-	}
-
-	if !config.NoClientAuth && config.PasswordCallback == nil && config.PublicKeyCallback == nil && config.KeyboardInteractiveCallback == nil {
-		return nil, errors.New("ssh: no authentication methods configured but NoClientAuth is also false")
-	}
-
-	if config.ServerVersion != "" {
-		s.serverVersion = []byte(config.ServerVersion)
-	} else {
-		s.serverVersion = []byte(packageVersion)
-	}
-	var err error
-	s.clientVersion, err = exchangeVersions(s.sshConn.conn, s.serverVersion)
-	if err != nil {
-		return nil, err
-	}
-
-	tr := newTransport(s.sshConn.conn, config.Rand, false /* not client */)
-	s.transport = newServerTransport(tr, s.clientVersion, s.serverVersion, config)
-
-	if err := s.transport.waitSession(); err != nil {
-		return nil, err
-	}
-
-	// We just did the key change, so the session ID is established.
-	s.sessionID = s.transport.getSessionID()
-
-	var packet []byte
-	if packet, err = s.transport.readPacket(); err != nil {
-		return nil, err
-	}
-
-	var serviceRequest serviceRequestMsg
-	if err = Unmarshal(packet, &serviceRequest); err != nil {
-		return nil, err
-	}
-	if serviceRequest.Service != serviceUserAuth {
-		return nil, errors.New("ssh: requested service '" + serviceRequest.Service + "' before authenticating")
-	}
-	serviceAccept := serviceAcceptMsg{
-		Service: serviceUserAuth,
-	}
-	if err := s.transport.writePacket(Marshal(&serviceAccept)); err != nil {
-		return nil, err
-	}
-
-	perms, err := s.serverAuthenticate(config)
-	if err != nil {
-		return nil, err
-	}
-	s.mux = newMux(s.transport)
-	return perms, err
-}
-
-func isAcceptableAlgo(algo string) bool {
-	switch algo {
-	case KeyAlgoRSA, KeyAlgoDSA, KeyAlgoECDSA256, KeyAlgoECDSA384, KeyAlgoECDSA521, KeyAlgoED25519,
-		CertAlgoRSAv01, CertAlgoDSAv01, CertAlgoECDSA256v01, CertAlgoECDSA384v01, CertAlgoECDSA521v01, CertAlgoED25519v01:
-		return true
-	}
-	return false
-}
-
-func checkSourceAddress(addr net.Addr, sourceAddrs string) error {
-	if addr == nil {
-		return errors.New("ssh: no address known for client, but source-address match required")
-	}
-
-	tcpAddr, ok := addr.(*net.TCPAddr)
-	if !ok {
-		return fmt.Errorf("ssh: remote address %v is not an TCP address when checking source-address match", addr)
-	}
-
-	for _, sourceAddr := range strings.Split(sourceAddrs, ",") {
-		if allowedIP := net.ParseIP(sourceAddr); allowedIP != nil {
-			if allowedIP.Equal(tcpAddr.IP) {
-				return nil
-			}
-		} else {
-			_, ipNet, err := net.ParseCIDR(sourceAddr)
-			if err != nil {
-				return fmt.Errorf("ssh: error parsing source-address restriction %q: %v", sourceAddr, err)
-			}
-
-			if ipNet.Contains(tcpAddr.IP) {
-				return nil
-			}
-		}
-	}
-
-	return fmt.Errorf("ssh: remote address %v is not allowed because of source-address restriction", addr)
-}
-
-// ServerAuthError represents server authentication errors and is
-// sometimes returned by NewServerConn. It appends any authentication
-// errors that may occur, and is returned if all of the authentication
-// methods provided by the user failed to authenticate.
-type ServerAuthError struct {
-	// Errors contains authentication errors returned by the authentication
-	// callback methods. The first entry is typically ErrNoAuth.
-	Errors []error
-}
-
-func (l ServerAuthError) Error() string {
-	var errs []string
-	for _, err := range l.Errors {
-		errs = append(errs, err.Error())
-	}
-	return "[" + strings.Join(errs, ", ") + "]"
-}
-
-// ErrNoAuth is the error value returned if no
-// authentication method has been passed yet. This happens as a normal
-// part of the authentication loop, since the client first tries
-// 'none' authentication to discover available methods.
-// It is returned in ServerAuthError.Errors from NewServerConn.
-var ErrNoAuth = errors.New("ssh: no auth passed yet")
-
-func (s *connection) serverAuthenticate(config *ServerConfig) (*Permissions, error) {
-	sessionID := s.transport.getSessionID()
-	var cache pubKeyCache
-	var perms *Permissions
-
-	authFailures := 0
-	var authErrs []error
-	var displayedBanner bool
-
-userAuthLoop:
-	for {
-		if authFailures >= config.MaxAuthTries && config.MaxAuthTries > 0 {
-			discMsg := &disconnectMsg{
-				Reason:  2,
-				Message: "too many authentication failures",
-			}
-
-			if err := s.transport.writePacket(Marshal(discMsg)); err != nil {
-				return nil, err
-			}
-
-			return nil, discMsg
-		}
-
-		var userAuthReq userAuthRequestMsg
-		if packet, err := s.transport.readPacket(); err != nil {
-			if err == io.EOF {
-				return nil, &ServerAuthError{Errors: authErrs}
-			}
-			return nil, err
-		} else if err = Unmarshal(packet, &userAuthReq); err != nil {
-			return nil, err
-		}
-
-		if userAuthReq.Service != serviceSSH {
-			return nil, errors.New("ssh: client attempted to negotiate for unknown service: " + userAuthReq.Service)
-		}
-
-		s.user = userAuthReq.User
-
-		if !displayedBanner && config.BannerCallback != nil {
-			displayedBanner = true
-			msg := config.BannerCallback(s)
-			if msg != "" {
-				bannerMsg := &userAuthBannerMsg{
-					Message: msg,
-				}
-				if err := s.transport.writePacket(Marshal(bannerMsg)); err != nil {
-					return nil, err
-				}
-			}
-		}
-
-		perms = nil
-		authErr := ErrNoAuth
-
-		switch userAuthReq.Method {
-		case "none":
-			if config.NoClientAuth {
-				authErr = nil
-			}
-
-			// allow initial attempt of 'none' without penalty
-			if authFailures == 0 {
-				authFailures--
-			}
-		case "password":
-			if config.PasswordCallback == nil {
-				authErr = errors.New("ssh: password auth not configured")
-				break
-			}
-			payload := userAuthReq.Payload
-			if len(payload) < 1 || payload[0] != 0 {
-				return nil, parseError(msgUserAuthRequest)
-			}
-			payload = payload[1:]
-			password, payload, ok := parseString(payload)
-			if !ok || len(payload) > 0 {
-				return nil, parseError(msgUserAuthRequest)
-			}
-
-			perms, authErr = config.PasswordCallback(s, password)
-		case "keyboard-interactive":
-			if config.KeyboardInteractiveCallback == nil {
-				authErr = errors.New("ssh: keyboard-interactive auth not configubred")
-				break
-			}
-
-			prompter := &sshClientKeyboardInteractive{s}
-			perms, authErr = config.KeyboardInteractiveCallback(s, prompter.Challenge)
-		case "publickey":
-			if config.PublicKeyCallback == nil {
-				authErr = errors.New("ssh: publickey auth not configured")
-				break
-			}
-			payload := userAuthReq.Payload
-			if len(payload) < 1 {
-				return nil, parseError(msgUserAuthRequest)
-			}
-			isQuery := payload[0] == 0
-			payload = payload[1:]
-			algoBytes, payload, ok := parseString(payload)
-			if !ok {
-				return nil, parseError(msgUserAuthRequest)
-			}
-			algo := string(algoBytes)
-			if !isAcceptableAlgo(algo) {
-				authErr = fmt.Errorf("ssh: algorithm %q not accepted", algo)
-				break
-			}
-
-			pubKeyData, payload, ok := parseString(payload)
-			if !ok {
-				return nil, parseError(msgUserAuthRequest)
-			}
-
-			pubKey, err := ParsePublicKey(pubKeyData)
-			if err != nil {
-				return nil, err
-			}
-
-			candidate, ok := cache.get(s.user, pubKeyData)
-			if !ok {
-				candidate.user = s.user
-				candidate.pubKeyData = pubKeyData
-				candidate.perms, candidate.result = config.PublicKeyCallback(s, pubKey)
-				if candidate.result == nil && candidate.perms != nil && candidate.perms.CriticalOptions != nil && candidate.perms.CriticalOptions[sourceAddressCriticalOption] != "" {
-					candidate.result = checkSourceAddress(
-						s.RemoteAddr(),
-						candidate.perms.CriticalOptions[sourceAddressCriticalOption])
-				}
-				cache.add(candidate)
-			}
-
-			if isQuery {
-				// The client can query if the given public key
-				// would be okay.
-
-				if len(payload) > 0 {
-					return nil, parseError(msgUserAuthRequest)
-				}
-
-				if candidate.result == nil {
-					okMsg := userAuthPubKeyOkMsg{
-						Algo:   algo,
-						PubKey: pubKeyData,
-					}
-					if err = s.transport.writePacket(Marshal(&okMsg)); err != nil {
-						return nil, err
-					}
-					continue userAuthLoop
-				}
-				authErr = candidate.result
-			} else {
-				sig, payload, ok := parseSignature(payload)
-				if !ok || len(payload) > 0 {
-					return nil, parseError(msgUserAuthRequest)
-				}
-				// Ensure the public key algo and signature algo
-				// are supported.  Compare the private key
-				// algorithm name that corresponds to algo with
-				// sig.Format.  This is usually the same, but
-				// for certs, the names differ.
-				if !isAcceptableAlgo(sig.Format) {
-					break
-				}
-				signedData := buildDataSignedForAuth(sessionID, userAuthReq, algoBytes, pubKeyData)
-
-				if err := pubKey.Verify(signedData, sig); err != nil {
-					return nil, err
-				}
-
-				authErr = candidate.result
-				perms = candidate.perms
-			}
-		default:
-			authErr = fmt.Errorf("ssh: unknown method %q", userAuthReq.Method)
-		}
-
-		authErrs = append(authErrs, authErr)
-
-		if config.AuthLogCallback != nil {
-			config.AuthLogCallback(s, userAuthReq.Method, authErr)
-		}
-
-		if authErr == nil {
-			break userAuthLoop
-		}
-
-		authFailures++
-
-		var failureMsg userAuthFailureMsg
-		if config.PasswordCallback != nil {
-			failureMsg.Methods = append(failureMsg.Methods, "password")
-		}
-		if config.PublicKeyCallback != nil {
-			failureMsg.Methods = append(failureMsg.Methods, "publickey")
-		}
-		if config.KeyboardInteractiveCallback != nil {
-			failureMsg.Methods = append(failureMsg.Methods, "keyboard-interactive")
-		}
-
-		if len(failureMsg.Methods) == 0 {
-			return nil, errors.New("ssh: no authentication methods configured but NoClientAuth is also false")
-		}
-
-		if err := s.transport.writePacket(Marshal(&failureMsg)); err != nil {
-			return nil, err
-		}
-	}
-
-	if err := s.transport.writePacket([]byte{msgUserAuthSuccess}); err != nil {
-		return nil, err
-	}
-	return perms, nil
-}
-
-// sshClientKeyboardInteractive implements a ClientKeyboardInteractive by
-// asking the client on the other side of a ServerConn.
-type sshClientKeyboardInteractive struct {
-	*connection
-}
-
-func (c *sshClientKeyboardInteractive) Challenge(user, instruction string, questions []string, echos []bool) (answers []string, err error) {
-	if len(questions) != len(echos) {
-		return nil, errors.New("ssh: echos and questions must have equal length")
-	}
-
-	var prompts []byte
-	for i := range questions {
-		prompts = appendString(prompts, questions[i])
-		prompts = appendBool(prompts, echos[i])
-	}
-
-	if err := c.transport.writePacket(Marshal(&userAuthInfoRequestMsg{
-		Instruction: instruction,
-		NumPrompts:  uint32(len(questions)),
-		Prompts:     prompts,
-	})); err != nil {
-		return nil, err
-	}
-
-	packet, err := c.transport.readPacket()
-	if err != nil {
-		return nil, err
-	}
-	if packet[0] != msgUserAuthInfoResponse {
-		return nil, unexpectedMessageError(msgUserAuthInfoResponse, packet[0])
-	}
-	packet = packet[1:]
-
-	n, packet, ok := parseUint32(packet)
-	if !ok || int(n) != len(questions) {
-		return nil, parseError(msgUserAuthInfoResponse)
-	}
-
-	for i := uint32(0); i < n; i++ {
-		ans, rest, ok := parseString(packet)
-		if !ok {
-			return nil, parseError(msgUserAuthInfoResponse)
-		}
-
-		answers = append(answers, string(ans))
-		packet = rest
-	}
-	if len(packet) != 0 {
-		return nil, errors.New("ssh: junk at end of message")
-	}
-
-	return answers, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/session.go b/vendor/golang.org/x/crypto/ssh/session.go
deleted file mode 100644
index d3321f6..0000000
--- a/vendor/golang.org/x/crypto/ssh/session.go
+++ /dev/null
@@ -1,647 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-// Session implements an interactive session described in
-// "RFC 4254, section 6".
-
-import (
-	"bytes"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"sync"
-)
-
-type Signal string
-
-// POSIX signals as listed in RFC 4254 Section 6.10.
-const (
-	SIGABRT Signal = "ABRT"
-	SIGALRM Signal = "ALRM"
-	SIGFPE  Signal = "FPE"
-	SIGHUP  Signal = "HUP"
-	SIGILL  Signal = "ILL"
-	SIGINT  Signal = "INT"
-	SIGKILL Signal = "KILL"
-	SIGPIPE Signal = "PIPE"
-	SIGQUIT Signal = "QUIT"
-	SIGSEGV Signal = "SEGV"
-	SIGTERM Signal = "TERM"
-	SIGUSR1 Signal = "USR1"
-	SIGUSR2 Signal = "USR2"
-)
-
-var signals = map[Signal]int{
-	SIGABRT: 6,
-	SIGALRM: 14,
-	SIGFPE:  8,
-	SIGHUP:  1,
-	SIGILL:  4,
-	SIGINT:  2,
-	SIGKILL: 9,
-	SIGPIPE: 13,
-	SIGQUIT: 3,
-	SIGSEGV: 11,
-	SIGTERM: 15,
-}
-
-type TerminalModes map[uint8]uint32
-
-// POSIX terminal mode flags as listed in RFC 4254 Section 8.
-const (
-	tty_OP_END    = 0
-	VINTR         = 1
-	VQUIT         = 2
-	VERASE        = 3
-	VKILL         = 4
-	VEOF          = 5
-	VEOL          = 6
-	VEOL2         = 7
-	VSTART        = 8
-	VSTOP         = 9
-	VSUSP         = 10
-	VDSUSP        = 11
-	VREPRINT      = 12
-	VWERASE       = 13
-	VLNEXT        = 14
-	VFLUSH        = 15
-	VSWTCH        = 16
-	VSTATUS       = 17
-	VDISCARD      = 18
-	IGNPAR        = 30
-	PARMRK        = 31
-	INPCK         = 32
-	ISTRIP        = 33
-	INLCR         = 34
-	IGNCR         = 35
-	ICRNL         = 36
-	IUCLC         = 37
-	IXON          = 38
-	IXANY         = 39
-	IXOFF         = 40
-	IMAXBEL       = 41
-	ISIG          = 50
-	ICANON        = 51
-	XCASE         = 52
-	ECHO          = 53
-	ECHOE         = 54
-	ECHOK         = 55
-	ECHONL        = 56
-	NOFLSH        = 57
-	TOSTOP        = 58
-	IEXTEN        = 59
-	ECHOCTL       = 60
-	ECHOKE        = 61
-	PENDIN        = 62
-	OPOST         = 70
-	OLCUC         = 71
-	ONLCR         = 72
-	OCRNL         = 73
-	ONOCR         = 74
-	ONLRET        = 75
-	CS7           = 90
-	CS8           = 91
-	PARENB        = 92
-	PARODD        = 93
-	TTY_OP_ISPEED = 128
-	TTY_OP_OSPEED = 129
-)
-
-// A Session represents a connection to a remote command or shell.
-type Session struct {
-	// Stdin specifies the remote process's standard input.
-	// If Stdin is nil, the remote process reads from an empty
-	// bytes.Buffer.
-	Stdin io.Reader
-
-	// Stdout and Stderr specify the remote process's standard
-	// output and error.
-	//
-	// If either is nil, Run connects the corresponding file
-	// descriptor to an instance of ioutil.Discard. There is a
-	// fixed amount of buffering that is shared for the two streams.
-	// If either blocks it may eventually cause the remote
-	// command to block.
-	Stdout io.Writer
-	Stderr io.Writer
-
-	ch        Channel // the channel backing this session
-	started   bool    // true once Start, Run or Shell is invoked.
-	copyFuncs []func() error
-	errors    chan error // one send per copyFunc
-
-	// true if pipe method is active
-	stdinpipe, stdoutpipe, stderrpipe bool
-
-	// stdinPipeWriter is non-nil if StdinPipe has not been called
-	// and Stdin was specified by the user; it is the write end of
-	// a pipe connecting Session.Stdin to the stdin channel.
-	stdinPipeWriter io.WriteCloser
-
-	exitStatus chan error
-}
-
-// SendRequest sends an out-of-band channel request on the SSH channel
-// underlying the session.
-func (s *Session) SendRequest(name string, wantReply bool, payload []byte) (bool, error) {
-	return s.ch.SendRequest(name, wantReply, payload)
-}
-
-func (s *Session) Close() error {
-	return s.ch.Close()
-}
-
-// RFC 4254 Section 6.4.
-type setenvRequest struct {
-	Name  string
-	Value string
-}
-
-// Setenv sets an environment variable that will be applied to any
-// command executed by Shell or Run.
-func (s *Session) Setenv(name, value string) error {
-	msg := setenvRequest{
-		Name:  name,
-		Value: value,
-	}
-	ok, err := s.ch.SendRequest("env", true, Marshal(&msg))
-	if err == nil && !ok {
-		err = errors.New("ssh: setenv failed")
-	}
-	return err
-}
-
-// RFC 4254 Section 6.2.
-type ptyRequestMsg struct {
-	Term     string
-	Columns  uint32
-	Rows     uint32
-	Width    uint32
-	Height   uint32
-	Modelist string
-}
-
-// RequestPty requests the association of a pty with the session on the remote host.
-func (s *Session) RequestPty(term string, h, w int, termmodes TerminalModes) error {
-	var tm []byte
-	for k, v := range termmodes {
-		kv := struct {
-			Key byte
-			Val uint32
-		}{k, v}
-
-		tm = append(tm, Marshal(&kv)...)
-	}
-	tm = append(tm, tty_OP_END)
-	req := ptyRequestMsg{
-		Term:     term,
-		Columns:  uint32(w),
-		Rows:     uint32(h),
-		Width:    uint32(w * 8),
-		Height:   uint32(h * 8),
-		Modelist: string(tm),
-	}
-	ok, err := s.ch.SendRequest("pty-req", true, Marshal(&req))
-	if err == nil && !ok {
-		err = errors.New("ssh: pty-req failed")
-	}
-	return err
-}
-
-// RFC 4254 Section 6.5.
-type subsystemRequestMsg struct {
-	Subsystem string
-}
-
-// RequestSubsystem requests the association of a subsystem with the session on the remote host.
-// A subsystem is a predefined command that runs in the background when the ssh session is initiated
-func (s *Session) RequestSubsystem(subsystem string) error {
-	msg := subsystemRequestMsg{
-		Subsystem: subsystem,
-	}
-	ok, err := s.ch.SendRequest("subsystem", true, Marshal(&msg))
-	if err == nil && !ok {
-		err = errors.New("ssh: subsystem request failed")
-	}
-	return err
-}
-
-// RFC 4254 Section 6.7.
-type ptyWindowChangeMsg struct {
-	Columns uint32
-	Rows    uint32
-	Width   uint32
-	Height  uint32
-}
-
-// WindowChange informs the remote host about a terminal window dimension change to h rows and w columns.
-func (s *Session) WindowChange(h, w int) error {
-	req := ptyWindowChangeMsg{
-		Columns: uint32(w),
-		Rows:    uint32(h),
-		Width:   uint32(w * 8),
-		Height:  uint32(h * 8),
-	}
-	_, err := s.ch.SendRequest("window-change", false, Marshal(&req))
-	return err
-}
-
-// RFC 4254 Section 6.9.
-type signalMsg struct {
-	Signal string
-}
-
-// Signal sends the given signal to the remote process.
-// sig is one of the SIG* constants.
-func (s *Session) Signal(sig Signal) error {
-	msg := signalMsg{
-		Signal: string(sig),
-	}
-
-	_, err := s.ch.SendRequest("signal", false, Marshal(&msg))
-	return err
-}
-
-// RFC 4254 Section 6.5.
-type execMsg struct {
-	Command string
-}
-
-// Start runs cmd on the remote host. Typically, the remote
-// server passes cmd to the shell for interpretation.
-// A Session only accepts one call to Run, Start or Shell.
-func (s *Session) Start(cmd string) error {
-	if s.started {
-		return errors.New("ssh: session already started")
-	}
-	req := execMsg{
-		Command: cmd,
-	}
-
-	ok, err := s.ch.SendRequest("exec", true, Marshal(&req))
-	if err == nil && !ok {
-		err = fmt.Errorf("ssh: command %v failed", cmd)
-	}
-	if err != nil {
-		return err
-	}
-	return s.start()
-}
-
-// Run runs cmd on the remote host. Typically, the remote
-// server passes cmd to the shell for interpretation.
-// A Session only accepts one call to Run, Start, Shell, Output,
-// or CombinedOutput.
-//
-// The returned error is nil if the command runs, has no problems
-// copying stdin, stdout, and stderr, and exits with a zero exit
-// status.
-//
-// If the remote server does not send an exit status, an error of type
-// *ExitMissingError is returned. If the command completes
-// unsuccessfully or is interrupted by a signal, the error is of type
-// *ExitError. Other error types may be returned for I/O problems.
-func (s *Session) Run(cmd string) error {
-	err := s.Start(cmd)
-	if err != nil {
-		return err
-	}
-	return s.Wait()
-}
-
-// Output runs cmd on the remote host and returns its standard output.
-func (s *Session) Output(cmd string) ([]byte, error) {
-	if s.Stdout != nil {
-		return nil, errors.New("ssh: Stdout already set")
-	}
-	var b bytes.Buffer
-	s.Stdout = &b
-	err := s.Run(cmd)
-	return b.Bytes(), err
-}
-
-type singleWriter struct {
-	b  bytes.Buffer
-	mu sync.Mutex
-}
-
-func (w *singleWriter) Write(p []byte) (int, error) {
-	w.mu.Lock()
-	defer w.mu.Unlock()
-	return w.b.Write(p)
-}
-
-// CombinedOutput runs cmd on the remote host and returns its combined
-// standard output and standard error.
-func (s *Session) CombinedOutput(cmd string) ([]byte, error) {
-	if s.Stdout != nil {
-		return nil, errors.New("ssh: Stdout already set")
-	}
-	if s.Stderr != nil {
-		return nil, errors.New("ssh: Stderr already set")
-	}
-	var b singleWriter
-	s.Stdout = &b
-	s.Stderr = &b
-	err := s.Run(cmd)
-	return b.b.Bytes(), err
-}
-
-// Shell starts a login shell on the remote host. A Session only
-// accepts one call to Run, Start, Shell, Output, or CombinedOutput.
-func (s *Session) Shell() error {
-	if s.started {
-		return errors.New("ssh: session already started")
-	}
-
-	ok, err := s.ch.SendRequest("shell", true, nil)
-	if err == nil && !ok {
-		return errors.New("ssh: could not start shell")
-	}
-	if err != nil {
-		return err
-	}
-	return s.start()
-}
-
-func (s *Session) start() error {
-	s.started = true
-
-	type F func(*Session)
-	for _, setupFd := range []F{(*Session).stdin, (*Session).stdout, (*Session).stderr} {
-		setupFd(s)
-	}
-
-	s.errors = make(chan error, len(s.copyFuncs))
-	for _, fn := range s.copyFuncs {
-		go func(fn func() error) {
-			s.errors <- fn()
-		}(fn)
-	}
-	return nil
-}
-
-// Wait waits for the remote command to exit.
-//
-// The returned error is nil if the command runs, has no problems
-// copying stdin, stdout, and stderr, and exits with a zero exit
-// status.
-//
-// If the remote server does not send an exit status, an error of type
-// *ExitMissingError is returned. If the command completes
-// unsuccessfully or is interrupted by a signal, the error is of type
-// *ExitError. Other error types may be returned for I/O problems.
-func (s *Session) Wait() error {
-	if !s.started {
-		return errors.New("ssh: session not started")
-	}
-	waitErr := <-s.exitStatus
-
-	if s.stdinPipeWriter != nil {
-		s.stdinPipeWriter.Close()
-	}
-	var copyError error
-	for range s.copyFuncs {
-		if err := <-s.errors; err != nil && copyError == nil {
-			copyError = err
-		}
-	}
-	if waitErr != nil {
-		return waitErr
-	}
-	return copyError
-}
-
-func (s *Session) wait(reqs <-chan *Request) error {
-	wm := Waitmsg{status: -1}
-	// Wait for msg channel to be closed before returning.
-	for msg := range reqs {
-		switch msg.Type {
-		case "exit-status":
-			wm.status = int(binary.BigEndian.Uint32(msg.Payload))
-		case "exit-signal":
-			var sigval struct {
-				Signal     string
-				CoreDumped bool
-				Error      string
-				Lang       string
-			}
-			if err := Unmarshal(msg.Payload, &sigval); err != nil {
-				return err
-			}
-
-			// Must sanitize strings?
-			wm.signal = sigval.Signal
-			wm.msg = sigval.Error
-			wm.lang = sigval.Lang
-		default:
-			// This handles keepalives and matches
-			// OpenSSH's behaviour.
-			if msg.WantReply {
-				msg.Reply(false, nil)
-			}
-		}
-	}
-	if wm.status == 0 {
-		return nil
-	}
-	if wm.status == -1 {
-		// exit-status was never sent from server
-		if wm.signal == "" {
-			// signal was not sent either.  RFC 4254
-			// section 6.10 recommends against this
-			// behavior, but it is allowed, so we let
-			// clients handle it.
-			return &ExitMissingError{}
-		}
-		wm.status = 128
-		if _, ok := signals[Signal(wm.signal)]; ok {
-			wm.status += signals[Signal(wm.signal)]
-		}
-	}
-
-	return &ExitError{wm}
-}
-
-// ExitMissingError is returned if a session is torn down cleanly, but
-// the server sends no confirmation of the exit status.
-type ExitMissingError struct{}
-
-func (e *ExitMissingError) Error() string {
-	return "wait: remote command exited without exit status or exit signal"
-}
-
-func (s *Session) stdin() {
-	if s.stdinpipe {
-		return
-	}
-	var stdin io.Reader
-	if s.Stdin == nil {
-		stdin = new(bytes.Buffer)
-	} else {
-		r, w := io.Pipe()
-		go func() {
-			_, err := io.Copy(w, s.Stdin)
-			w.CloseWithError(err)
-		}()
-		stdin, s.stdinPipeWriter = r, w
-	}
-	s.copyFuncs = append(s.copyFuncs, func() error {
-		_, err := io.Copy(s.ch, stdin)
-		if err1 := s.ch.CloseWrite(); err == nil && err1 != io.EOF {
-			err = err1
-		}
-		return err
-	})
-}
-
-func (s *Session) stdout() {
-	if s.stdoutpipe {
-		return
-	}
-	if s.Stdout == nil {
-		s.Stdout = ioutil.Discard
-	}
-	s.copyFuncs = append(s.copyFuncs, func() error {
-		_, err := io.Copy(s.Stdout, s.ch)
-		return err
-	})
-}
-
-func (s *Session) stderr() {
-	if s.stderrpipe {
-		return
-	}
-	if s.Stderr == nil {
-		s.Stderr = ioutil.Discard
-	}
-	s.copyFuncs = append(s.copyFuncs, func() error {
-		_, err := io.Copy(s.Stderr, s.ch.Stderr())
-		return err
-	})
-}
-
-// sessionStdin reroutes Close to CloseWrite.
-type sessionStdin struct {
-	io.Writer
-	ch Channel
-}
-
-func (s *sessionStdin) Close() error {
-	return s.ch.CloseWrite()
-}
-
-// StdinPipe returns a pipe that will be connected to the
-// remote command's standard input when the command starts.
-func (s *Session) StdinPipe() (io.WriteCloser, error) {
-	if s.Stdin != nil {
-		return nil, errors.New("ssh: Stdin already set")
-	}
-	if s.started {
-		return nil, errors.New("ssh: StdinPipe after process started")
-	}
-	s.stdinpipe = true
-	return &sessionStdin{s.ch, s.ch}, nil
-}
-
-// StdoutPipe returns a pipe that will be connected to the
-// remote command's standard output when the command starts.
-// There is a fixed amount of buffering that is shared between
-// stdout and stderr streams. If the StdoutPipe reader is
-// not serviced fast enough it may eventually cause the
-// remote command to block.
-func (s *Session) StdoutPipe() (io.Reader, error) {
-	if s.Stdout != nil {
-		return nil, errors.New("ssh: Stdout already set")
-	}
-	if s.started {
-		return nil, errors.New("ssh: StdoutPipe after process started")
-	}
-	s.stdoutpipe = true
-	return s.ch, nil
-}
-
-// StderrPipe returns a pipe that will be connected to the
-// remote command's standard error when the command starts.
-// There is a fixed amount of buffering that is shared between
-// stdout and stderr streams. If the StderrPipe reader is
-// not serviced fast enough it may eventually cause the
-// remote command to block.
-func (s *Session) StderrPipe() (io.Reader, error) {
-	if s.Stderr != nil {
-		return nil, errors.New("ssh: Stderr already set")
-	}
-	if s.started {
-		return nil, errors.New("ssh: StderrPipe after process started")
-	}
-	s.stderrpipe = true
-	return s.ch.Stderr(), nil
-}
-
-// newSession returns a new interactive session on the remote host.
-func newSession(ch Channel, reqs <-chan *Request) (*Session, error) {
-	s := &Session{
-		ch: ch,
-	}
-	s.exitStatus = make(chan error, 1)
-	go func() {
-		s.exitStatus <- s.wait(reqs)
-	}()
-
-	return s, nil
-}
-
-// An ExitError reports unsuccessful completion of a remote command.
-type ExitError struct {
-	Waitmsg
-}
-
-func (e *ExitError) Error() string {
-	return e.Waitmsg.String()
-}
-
-// Waitmsg stores the information about an exited remote command
-// as reported by Wait.
-type Waitmsg struct {
-	status int
-	signal string
-	msg    string
-	lang   string
-}
-
-// ExitStatus returns the exit status of the remote command.
-func (w Waitmsg) ExitStatus() int {
-	return w.status
-}
-
-// Signal returns the exit signal of the remote command if
-// it was terminated violently.
-func (w Waitmsg) Signal() string {
-	return w.signal
-}
-
-// Msg returns the exit message given by the remote command
-func (w Waitmsg) Msg() string {
-	return w.msg
-}
-
-// Lang returns the language tag. See RFC 3066
-func (w Waitmsg) Lang() string {
-	return w.lang
-}
-
-func (w Waitmsg) String() string {
-	str := fmt.Sprintf("Process exited with status %v", w.status)
-	if w.signal != "" {
-		str += fmt.Sprintf(" from signal %v", w.signal)
-	}
-	if w.msg != "" {
-		str += fmt.Sprintf(". Reason was: %v", w.msg)
-	}
-	return str
-}
diff --git a/vendor/golang.org/x/crypto/ssh/session_test.go b/vendor/golang.org/x/crypto/ssh/session_test.go
deleted file mode 100644
index 7dce6dd..0000000
--- a/vendor/golang.org/x/crypto/ssh/session_test.go
+++ /dev/null
@@ -1,774 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-// Session tests.
-
-import (
-	"bytes"
-	crypto_rand "crypto/rand"
-	"errors"
-	"io"
-	"io/ioutil"
-	"math/rand"
-	"net"
-	"testing"
-
-	"golang.org/x/crypto/ssh/terminal"
-)
-
-type serverType func(Channel, <-chan *Request, *testing.T)
-
-// dial constructs a new test server and returns a *ClientConn.
-func dial(handler serverType, t *testing.T) *Client {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-
-	go func() {
-		defer c1.Close()
-		conf := ServerConfig{
-			NoClientAuth: true,
-		}
-		conf.AddHostKey(testSigners["rsa"])
-
-		_, chans, reqs, err := NewServerConn(c1, &conf)
-		if err != nil {
-			t.Fatalf("Unable to handshake: %v", err)
-		}
-		go DiscardRequests(reqs)
-
-		for newCh := range chans {
-			if newCh.ChannelType() != "session" {
-				newCh.Reject(UnknownChannelType, "unknown channel type")
-				continue
-			}
-
-			ch, inReqs, err := newCh.Accept()
-			if err != nil {
-				t.Errorf("Accept: %v", err)
-				continue
-			}
-			go func() {
-				handler(ch, inReqs, t)
-			}()
-		}
-	}()
-
-	config := &ClientConfig{
-		User:            "testuser",
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-
-	conn, chans, reqs, err := NewClientConn(c2, "", config)
-	if err != nil {
-		t.Fatalf("unable to dial remote side: %v", err)
-	}
-
-	return NewClient(conn, chans, reqs)
-}
-
-// Test a simple string is returned to session.Stdout.
-func TestSessionShell(t *testing.T) {
-	conn := dial(shellHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	stdout := new(bytes.Buffer)
-	session.Stdout = stdout
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %s", err)
-	}
-	if err := session.Wait(); err != nil {
-		t.Fatalf("Remote command did not exit cleanly: %v", err)
-	}
-	actual := stdout.String()
-	if actual != "golang" {
-		t.Fatalf("Remote shell did not return expected string: expected=golang, actual=%s", actual)
-	}
-}
-
-// TODO(dfc) add support for Std{in,err}Pipe when the Server supports it.
-
-// Test a simple string is returned via StdoutPipe.
-func TestSessionStdoutPipe(t *testing.T) {
-	conn := dial(shellHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	stdout, err := session.StdoutPipe()
-	if err != nil {
-		t.Fatalf("Unable to request StdoutPipe(): %v", err)
-	}
-	var buf bytes.Buffer
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	done := make(chan bool, 1)
-	go func() {
-		if _, err := io.Copy(&buf, stdout); err != nil {
-			t.Errorf("Copy of stdout failed: %v", err)
-		}
-		done <- true
-	}()
-	if err := session.Wait(); err != nil {
-		t.Fatalf("Remote command did not exit cleanly: %v", err)
-	}
-	<-done
-	actual := buf.String()
-	if actual != "golang" {
-		t.Fatalf("Remote shell did not return expected string: expected=golang, actual=%s", actual)
-	}
-}
-
-// Test that a simple string is returned via the Output helper,
-// and that stderr is discarded.
-func TestSessionOutput(t *testing.T) {
-	conn := dial(fixedOutputHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-
-	buf, err := session.Output("") // cmd is ignored by fixedOutputHandler
-	if err != nil {
-		t.Error("Remote command did not exit cleanly:", err)
-	}
-	w := "this-is-stdout."
-	g := string(buf)
-	if g != w {
-		t.Error("Remote command did not return expected string:")
-		t.Logf("want %q", w)
-		t.Logf("got  %q", g)
-	}
-}
-
-// Test that both stdout and stderr are returned
-// via the CombinedOutput helper.
-func TestSessionCombinedOutput(t *testing.T) {
-	conn := dial(fixedOutputHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-
-	buf, err := session.CombinedOutput("") // cmd is ignored by fixedOutputHandler
-	if err != nil {
-		t.Error("Remote command did not exit cleanly:", err)
-	}
-	const stdout = "this-is-stdout."
-	const stderr = "this-is-stderr."
-	g := string(buf)
-	if g != stdout+stderr && g != stderr+stdout {
-		t.Error("Remote command did not return expected string:")
-		t.Logf("want %q, or %q", stdout+stderr, stderr+stdout)
-		t.Logf("got  %q", g)
-	}
-}
-
-// Test non-0 exit status is returned correctly.
-func TestExitStatusNonZero(t *testing.T) {
-	conn := dial(exitStatusNonZeroHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err == nil {
-		t.Fatalf("expected command to fail but it didn't")
-	}
-	e, ok := err.(*ExitError)
-	if !ok {
-		t.Fatalf("expected *ExitError but got %T", err)
-	}
-	if e.ExitStatus() != 15 {
-		t.Fatalf("expected command to exit with 15 but got %v", e.ExitStatus())
-	}
-}
-
-// Test 0 exit status is returned correctly.
-func TestExitStatusZero(t *testing.T) {
-	conn := dial(exitStatusZeroHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err != nil {
-		t.Fatalf("expected nil but got %v", err)
-	}
-}
-
-// Test exit signal and status are both returned correctly.
-func TestExitSignalAndStatus(t *testing.T) {
-	conn := dial(exitSignalAndStatusHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err == nil {
-		t.Fatalf("expected command to fail but it didn't")
-	}
-	e, ok := err.(*ExitError)
-	if !ok {
-		t.Fatalf("expected *ExitError but got %T", err)
-	}
-	if e.Signal() != "TERM" || e.ExitStatus() != 15 {
-		t.Fatalf("expected command to exit with signal TERM and status 15 but got signal %s and status %v", e.Signal(), e.ExitStatus())
-	}
-}
-
-// Test exit signal and status are both returned correctly.
-func TestKnownExitSignalOnly(t *testing.T) {
-	conn := dial(exitSignalHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err == nil {
-		t.Fatalf("expected command to fail but it didn't")
-	}
-	e, ok := err.(*ExitError)
-	if !ok {
-		t.Fatalf("expected *ExitError but got %T", err)
-	}
-	if e.Signal() != "TERM" || e.ExitStatus() != 143 {
-		t.Fatalf("expected command to exit with signal TERM and status 143 but got signal %s and status %v", e.Signal(), e.ExitStatus())
-	}
-}
-
-// Test exit signal and status are both returned correctly.
-func TestUnknownExitSignal(t *testing.T) {
-	conn := dial(exitSignalUnknownHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err == nil {
-		t.Fatalf("expected command to fail but it didn't")
-	}
-	e, ok := err.(*ExitError)
-	if !ok {
-		t.Fatalf("expected *ExitError but got %T", err)
-	}
-	if e.Signal() != "SYS" || e.ExitStatus() != 128 {
-		t.Fatalf("expected command to exit with signal SYS and status 128 but got signal %s and status %v", e.Signal(), e.ExitStatus())
-	}
-}
-
-func TestExitWithoutStatusOrSignal(t *testing.T) {
-	conn := dial(exitWithoutSignalOrStatus, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("Unable to request new session: %v", err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err == nil {
-		t.Fatalf("expected command to fail but it didn't")
-	}
-	if _, ok := err.(*ExitMissingError); !ok {
-		t.Fatalf("got %T want *ExitMissingError", err)
-	}
-}
-
-// windowTestBytes is the number of bytes that we'll send to the SSH server.
-const windowTestBytes = 16000 * 200
-
-// TestServerWindow writes random data to the server. The server is expected to echo
-// the same data back, which is compared against the original.
-func TestServerWindow(t *testing.T) {
-	origBuf := bytes.NewBuffer(make([]byte, 0, windowTestBytes))
-	io.CopyN(origBuf, crypto_rand.Reader, windowTestBytes)
-	origBytes := origBuf.Bytes()
-
-	conn := dial(echoHandler, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer session.Close()
-	result := make(chan []byte)
-
-	go func() {
-		defer close(result)
-		echoedBuf := bytes.NewBuffer(make([]byte, 0, windowTestBytes))
-		serverStdout, err := session.StdoutPipe()
-		if err != nil {
-			t.Errorf("StdoutPipe failed: %v", err)
-			return
-		}
-		n, err := copyNRandomly("stdout", echoedBuf, serverStdout, windowTestBytes)
-		if err != nil && err != io.EOF {
-			t.Errorf("Read only %d bytes from server, expected %d: %v", n, windowTestBytes, err)
-		}
-		result <- echoedBuf.Bytes()
-	}()
-
-	serverStdin, err := session.StdinPipe()
-	if err != nil {
-		t.Fatalf("StdinPipe failed: %v", err)
-	}
-	written, err := copyNRandomly("stdin", serverStdin, origBuf, windowTestBytes)
-	if err != nil {
-		t.Fatalf("failed to copy origBuf to serverStdin: %v", err)
-	}
-	if written != windowTestBytes {
-		t.Fatalf("Wrote only %d of %d bytes to server", written, windowTestBytes)
-	}
-
-	echoedBytes := <-result
-
-	if !bytes.Equal(origBytes, echoedBytes) {
-		t.Fatalf("Echoed buffer differed from original, orig %d, echoed %d", len(origBytes), len(echoedBytes))
-	}
-}
-
-// Verify the client can handle a keepalive packet from the server.
-func TestClientHandlesKeepalives(t *testing.T) {
-	conn := dial(channelKeepaliveSender, t)
-	defer conn.Close()
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer session.Close()
-	if err := session.Shell(); err != nil {
-		t.Fatalf("Unable to execute command: %v", err)
-	}
-	err = session.Wait()
-	if err != nil {
-		t.Fatalf("expected nil but got: %v", err)
-	}
-}
-
-type exitStatusMsg struct {
-	Status uint32
-}
-
-type exitSignalMsg struct {
-	Signal     string
-	CoreDumped bool
-	Errmsg     string
-	Lang       string
-}
-
-func handleTerminalRequests(in <-chan *Request) {
-	for req := range in {
-		ok := false
-		switch req.Type {
-		case "shell":
-			ok = true
-			if len(req.Payload) > 0 {
-				// We don't accept any commands, only the default shell.
-				ok = false
-			}
-		case "env":
-			ok = true
-		}
-		req.Reply(ok, nil)
-	}
-}
-
-func newServerShell(ch Channel, in <-chan *Request, prompt string) *terminal.Terminal {
-	term := terminal.NewTerminal(ch, prompt)
-	go handleTerminalRequests(in)
-	return term
-}
-
-func exitStatusZeroHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	// this string is returned to stdout
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	sendStatus(0, ch, t)
-}
-
-func exitStatusNonZeroHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	sendStatus(15, ch, t)
-}
-
-func exitSignalAndStatusHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	sendStatus(15, ch, t)
-	sendSignal("TERM", ch, t)
-}
-
-func exitSignalHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	sendSignal("TERM", ch, t)
-}
-
-func exitSignalUnknownHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	sendSignal("SYS", ch, t)
-}
-
-func exitWithoutSignalOrStatus(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-}
-
-func shellHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	// this string is returned to stdout
-	shell := newServerShell(ch, in, "golang")
-	readLine(shell, t)
-	sendStatus(0, ch, t)
-}
-
-// Ignores the command, writes fixed strings to stderr and stdout.
-// Strings are "this-is-stdout." and "this-is-stderr.".
-func fixedOutputHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	_, err := ch.Read(nil)
-
-	req, ok := <-in
-	if !ok {
-		t.Fatalf("error: expected channel request, got: %#v", err)
-		return
-	}
-
-	// ignore request, always send some text
-	req.Reply(true, nil)
-
-	_, err = io.WriteString(ch, "this-is-stdout.")
-	if err != nil {
-		t.Fatalf("error writing on server: %v", err)
-	}
-	_, err = io.WriteString(ch.Stderr(), "this-is-stderr.")
-	if err != nil {
-		t.Fatalf("error writing on server: %v", err)
-	}
-	sendStatus(0, ch, t)
-}
-
-func readLine(shell *terminal.Terminal, t *testing.T) {
-	if _, err := shell.ReadLine(); err != nil && err != io.EOF {
-		t.Errorf("unable to read line: %v", err)
-	}
-}
-
-func sendStatus(status uint32, ch Channel, t *testing.T) {
-	msg := exitStatusMsg{
-		Status: status,
-	}
-	if _, err := ch.SendRequest("exit-status", false, Marshal(&msg)); err != nil {
-		t.Errorf("unable to send status: %v", err)
-	}
-}
-
-func sendSignal(signal string, ch Channel, t *testing.T) {
-	sig := exitSignalMsg{
-		Signal:     signal,
-		CoreDumped: false,
-		Errmsg:     "Process terminated",
-		Lang:       "en-GB-oed",
-	}
-	if _, err := ch.SendRequest("exit-signal", false, Marshal(&sig)); err != nil {
-		t.Errorf("unable to send signal: %v", err)
-	}
-}
-
-func discardHandler(ch Channel, t *testing.T) {
-	defer ch.Close()
-	io.Copy(ioutil.Discard, ch)
-}
-
-func echoHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	if n, err := copyNRandomly("echohandler", ch, ch, windowTestBytes); err != nil {
-		t.Errorf("short write, wrote %d, expected %d: %v ", n, windowTestBytes, err)
-	}
-}
-
-// copyNRandomly copies n bytes from src to dst. It uses a variable, and random,
-// buffer size to exercise more code paths.
-func copyNRandomly(title string, dst io.Writer, src io.Reader, n int) (int, error) {
-	var (
-		buf       = make([]byte, 32*1024)
-		written   int
-		remaining = n
-	)
-	for remaining > 0 {
-		l := rand.Intn(1 << 15)
-		if remaining < l {
-			l = remaining
-		}
-		nr, er := src.Read(buf[:l])
-		nw, ew := dst.Write(buf[:nr])
-		remaining -= nw
-		written += nw
-		if ew != nil {
-			return written, ew
-		}
-		if nr != nw {
-			return written, io.ErrShortWrite
-		}
-		if er != nil && er != io.EOF {
-			return written, er
-		}
-	}
-	return written, nil
-}
-
-func channelKeepaliveSender(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	shell := newServerShell(ch, in, "> ")
-	readLine(shell, t)
-	if _, err := ch.SendRequest("keepalive@openssh.com", true, nil); err != nil {
-		t.Errorf("unable to send channel keepalive request: %v", err)
-	}
-	sendStatus(0, ch, t)
-}
-
-func TestClientWriteEOF(t *testing.T) {
-	conn := dial(simpleEchoHandler, t)
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer session.Close()
-	stdin, err := session.StdinPipe()
-	if err != nil {
-		t.Fatalf("StdinPipe failed: %v", err)
-	}
-	stdout, err := session.StdoutPipe()
-	if err != nil {
-		t.Fatalf("StdoutPipe failed: %v", err)
-	}
-
-	data := []byte(`0000`)
-	_, err = stdin.Write(data)
-	if err != nil {
-		t.Fatalf("Write failed: %v", err)
-	}
-	stdin.Close()
-
-	res, err := ioutil.ReadAll(stdout)
-	if err != nil {
-		t.Fatalf("Read failed: %v", err)
-	}
-
-	if !bytes.Equal(data, res) {
-		t.Fatalf("Read differed from write, wrote: %v, read: %v", data, res)
-	}
-}
-
-func simpleEchoHandler(ch Channel, in <-chan *Request, t *testing.T) {
-	defer ch.Close()
-	data, err := ioutil.ReadAll(ch)
-	if err != nil {
-		t.Errorf("handler read error: %v", err)
-	}
-	_, err = ch.Write(data)
-	if err != nil {
-		t.Errorf("handler write error: %v", err)
-	}
-}
-
-func TestSessionID(t *testing.T) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	serverID := make(chan []byte, 1)
-	clientID := make(chan []byte, 1)
-
-	serverConf := &ServerConfig{
-		NoClientAuth: true,
-	}
-	serverConf.AddHostKey(testSigners["ecdsa"])
-	clientConf := &ClientConfig{
-		HostKeyCallback: InsecureIgnoreHostKey(),
-		User:            "user",
-	}
-
-	go func() {
-		conn, chans, reqs, err := NewServerConn(c1, serverConf)
-		if err != nil {
-			t.Fatalf("server handshake: %v", err)
-		}
-		serverID <- conn.SessionID()
-		go DiscardRequests(reqs)
-		for ch := range chans {
-			ch.Reject(Prohibited, "")
-		}
-	}()
-
-	go func() {
-		conn, chans, reqs, err := NewClientConn(c2, "", clientConf)
-		if err != nil {
-			t.Fatalf("client handshake: %v", err)
-		}
-		clientID <- conn.SessionID()
-		go DiscardRequests(reqs)
-		for ch := range chans {
-			ch.Reject(Prohibited, "")
-		}
-	}()
-
-	s := <-serverID
-	c := <-clientID
-	if bytes.Compare(s, c) != 0 {
-		t.Errorf("server session ID (%x) != client session ID (%x)", s, c)
-	} else if len(s) == 0 {
-		t.Errorf("client and server SessionID were empty.")
-	}
-}
-
-type noReadConn struct {
-	readSeen bool
-	net.Conn
-}
-
-func (c *noReadConn) Close() error {
-	return nil
-}
-
-func (c *noReadConn) Read(b []byte) (int, error) {
-	c.readSeen = true
-	return 0, errors.New("noReadConn error")
-}
-
-func TestInvalidServerConfiguration(t *testing.T) {
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	serveConn := noReadConn{Conn: c1}
-	serverConf := &ServerConfig{}
-
-	NewServerConn(&serveConn, serverConf)
-	if serveConn.readSeen {
-		t.Fatalf("NewServerConn attempted to Read() from Conn while configuration is missing host key")
-	}
-
-	serverConf.AddHostKey(testSigners["ecdsa"])
-
-	NewServerConn(&serveConn, serverConf)
-	if serveConn.readSeen {
-		t.Fatalf("NewServerConn attempted to Read() from Conn while configuration is missing authentication method")
-	}
-}
-
-func TestHostKeyAlgorithms(t *testing.T) {
-	serverConf := &ServerConfig{
-		NoClientAuth: true,
-	}
-	serverConf.AddHostKey(testSigners["rsa"])
-	serverConf.AddHostKey(testSigners["ecdsa"])
-
-	connect := func(clientConf *ClientConfig, want string) {
-		var alg string
-		clientConf.HostKeyCallback = func(h string, a net.Addr, key PublicKey) error {
-			alg = key.Type()
-			return nil
-		}
-		c1, c2, err := netPipe()
-		if err != nil {
-			t.Fatalf("netPipe: %v", err)
-		}
-		defer c1.Close()
-		defer c2.Close()
-
-		go NewServerConn(c1, serverConf)
-		_, _, _, err = NewClientConn(c2, "", clientConf)
-		if err != nil {
-			t.Fatalf("NewClientConn: %v", err)
-		}
-		if alg != want {
-			t.Errorf("selected key algorithm %s, want %s", alg, want)
-		}
-	}
-
-	// By default, we get the preferred algorithm, which is ECDSA 256.
-
-	clientConf := &ClientConfig{
-		HostKeyCallback: InsecureIgnoreHostKey(),
-	}
-	connect(clientConf, KeyAlgoECDSA256)
-
-	// Client asks for RSA explicitly.
-	clientConf.HostKeyAlgorithms = []string{KeyAlgoRSA}
-	connect(clientConf, KeyAlgoRSA)
-
-	c1, c2, err := netPipe()
-	if err != nil {
-		t.Fatalf("netPipe: %v", err)
-	}
-	defer c1.Close()
-	defer c2.Close()
-
-	go NewServerConn(c1, serverConf)
-	clientConf.HostKeyAlgorithms = []string{"nonexistent-hostkey-algo"}
-	_, _, _, err = NewClientConn(c2, "", clientConf)
-	if err == nil {
-		t.Fatal("succeeded connecting with unknown hostkey algorithm")
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/streamlocal.go b/vendor/golang.org/x/crypto/ssh/streamlocal.go
deleted file mode 100644
index b171b33..0000000
--- a/vendor/golang.org/x/crypto/ssh/streamlocal.go
+++ /dev/null
@@ -1,116 +0,0 @@
-package ssh
-
-import (
-	"errors"
-	"io"
-	"net"
-)
-
-// streamLocalChannelOpenDirectMsg is a struct used for SSH_MSG_CHANNEL_OPEN message
-// with "direct-streamlocal@openssh.com" string.
-//
-// See openssh-portable/PROTOCOL, section 2.4. connection: Unix domain socket forwarding
-// https://github.com/openssh/openssh-portable/blob/master/PROTOCOL#L235
-type streamLocalChannelOpenDirectMsg struct {
-	socketPath string
-	reserved0  string
-	reserved1  uint32
-}
-
-// forwardedStreamLocalPayload is a struct used for SSH_MSG_CHANNEL_OPEN message
-// with "forwarded-streamlocal@openssh.com" string.
-type forwardedStreamLocalPayload struct {
-	SocketPath string
-	Reserved0  string
-}
-
-// streamLocalChannelForwardMsg is a struct used for SSH2_MSG_GLOBAL_REQUEST message
-// with "streamlocal-forward@openssh.com"/"cancel-streamlocal-forward@openssh.com" string.
-type streamLocalChannelForwardMsg struct {
-	socketPath string
-}
-
-// ListenUnix is similar to ListenTCP but uses a Unix domain socket.
-func (c *Client) ListenUnix(socketPath string) (net.Listener, error) {
-	c.handleForwardsOnce.Do(c.handleForwards)
-	m := streamLocalChannelForwardMsg{
-		socketPath,
-	}
-	// send message
-	ok, _, err := c.SendRequest("streamlocal-forward@openssh.com", true, Marshal(&m))
-	if err != nil {
-		return nil, err
-	}
-	if !ok {
-		return nil, errors.New("ssh: streamlocal-forward@openssh.com request denied by peer")
-	}
-	ch := c.forwards.add(&net.UnixAddr{Name: socketPath, Net: "unix"})
-
-	return &unixListener{socketPath, c, ch}, nil
-}
-
-func (c *Client) dialStreamLocal(socketPath string) (Channel, error) {
-	msg := streamLocalChannelOpenDirectMsg{
-		socketPath: socketPath,
-	}
-	ch, in, err := c.OpenChannel("direct-streamlocal@openssh.com", Marshal(&msg))
-	if err != nil {
-		return nil, err
-	}
-	go DiscardRequests(in)
-	return ch, err
-}
-
-type unixListener struct {
-	socketPath string
-
-	conn *Client
-	in   <-chan forward
-}
-
-// Accept waits for and returns the next connection to the listener.
-func (l *unixListener) Accept() (net.Conn, error) {
-	s, ok := <-l.in
-	if !ok {
-		return nil, io.EOF
-	}
-	ch, incoming, err := s.newCh.Accept()
-	if err != nil {
-		return nil, err
-	}
-	go DiscardRequests(incoming)
-
-	return &chanConn{
-		Channel: ch,
-		laddr: &net.UnixAddr{
-			Name: l.socketPath,
-			Net:  "unix",
-		},
-		raddr: &net.UnixAddr{
-			Name: "@",
-			Net:  "unix",
-		},
-	}, nil
-}
-
-// Close closes the listener.
-func (l *unixListener) Close() error {
-	// this also closes the listener.
-	l.conn.forwards.remove(&net.UnixAddr{Name: l.socketPath, Net: "unix"})
-	m := streamLocalChannelForwardMsg{
-		l.socketPath,
-	}
-	ok, _, err := l.conn.SendRequest("cancel-streamlocal-forward@openssh.com", true, Marshal(&m))
-	if err == nil && !ok {
-		err = errors.New("ssh: cancel-streamlocal-forward@openssh.com failed")
-	}
-	return err
-}
-
-// Addr returns the listener's network address.
-func (l *unixListener) Addr() net.Addr {
-	return &net.UnixAddr{
-		Name: l.socketPath,
-		Net:  "unix",
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/tcpip.go b/vendor/golang.org/x/crypto/ssh/tcpip.go
deleted file mode 100644
index 80d35f5..0000000
--- a/vendor/golang.org/x/crypto/ssh/tcpip.go
+++ /dev/null
@@ -1,474 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"math/rand"
-	"net"
-	"strconv"
-	"strings"
-	"sync"
-	"time"
-)
-
-// Listen requests the remote peer open a listening socket on
-// addr. Incoming connections will be available by calling Accept on
-// the returned net.Listener. The listener must be serviced, or the
-// SSH connection may hang.
-// N must be "tcp", "tcp4", "tcp6", or "unix".
-func (c *Client) Listen(n, addr string) (net.Listener, error) {
-	switch n {
-	case "tcp", "tcp4", "tcp6":
-		laddr, err := net.ResolveTCPAddr(n, addr)
-		if err != nil {
-			return nil, err
-		}
-		return c.ListenTCP(laddr)
-	case "unix":
-		return c.ListenUnix(addr)
-	default:
-		return nil, fmt.Errorf("ssh: unsupported protocol: %s", n)
-	}
-}
-
-// Automatic port allocation is broken with OpenSSH before 6.0. See
-// also https://bugzilla.mindrot.org/show_bug.cgi?id=2017.  In
-// particular, OpenSSH 5.9 sends a channelOpenMsg with port number 0,
-// rather than the actual port number. This means you can never open
-// two different listeners with auto allocated ports. We work around
-// this by trying explicit ports until we succeed.
-
-const openSSHPrefix = "OpenSSH_"
-
-var portRandomizer = rand.New(rand.NewSource(time.Now().UnixNano()))
-
-// isBrokenOpenSSHVersion returns true if the given version string
-// specifies a version of OpenSSH that is known to have a bug in port
-// forwarding.
-func isBrokenOpenSSHVersion(versionStr string) bool {
-	i := strings.Index(versionStr, openSSHPrefix)
-	if i < 0 {
-		return false
-	}
-	i += len(openSSHPrefix)
-	j := i
-	for ; j < len(versionStr); j++ {
-		if versionStr[j] < '0' || versionStr[j] > '9' {
-			break
-		}
-	}
-	version, _ := strconv.Atoi(versionStr[i:j])
-	return version < 6
-}
-
-// autoPortListenWorkaround simulates automatic port allocation by
-// trying random ports repeatedly.
-func (c *Client) autoPortListenWorkaround(laddr *net.TCPAddr) (net.Listener, error) {
-	var sshListener net.Listener
-	var err error
-	const tries = 10
-	for i := 0; i < tries; i++ {
-		addr := *laddr
-		addr.Port = 1024 + portRandomizer.Intn(60000)
-		sshListener, err = c.ListenTCP(&addr)
-		if err == nil {
-			laddr.Port = addr.Port
-			return sshListener, err
-		}
-	}
-	return nil, fmt.Errorf("ssh: listen on random port failed after %d tries: %v", tries, err)
-}
-
-// RFC 4254 7.1
-type channelForwardMsg struct {
-	addr  string
-	rport uint32
-}
-
-// handleForwards starts goroutines handling forwarded connections.
-// It's called on first use by (*Client).ListenTCP to not launch
-// goroutines until needed.
-func (c *Client) handleForwards() {
-	go c.forwards.handleChannels(c.HandleChannelOpen("forwarded-tcpip"))
-	go c.forwards.handleChannels(c.HandleChannelOpen("forwarded-streamlocal@openssh.com"))
-}
-
-// ListenTCP requests the remote peer open a listening socket
-// on laddr. Incoming connections will be available by calling
-// Accept on the returned net.Listener.
-func (c *Client) ListenTCP(laddr *net.TCPAddr) (net.Listener, error) {
-	c.handleForwardsOnce.Do(c.handleForwards)
-	if laddr.Port == 0 && isBrokenOpenSSHVersion(string(c.ServerVersion())) {
-		return c.autoPortListenWorkaround(laddr)
-	}
-
-	m := channelForwardMsg{
-		laddr.IP.String(),
-		uint32(laddr.Port),
-	}
-	// send message
-	ok, resp, err := c.SendRequest("tcpip-forward", true, Marshal(&m))
-	if err != nil {
-		return nil, err
-	}
-	if !ok {
-		return nil, errors.New("ssh: tcpip-forward request denied by peer")
-	}
-
-	// If the original port was 0, then the remote side will
-	// supply a real port number in the response.
-	if laddr.Port == 0 {
-		var p struct {
-			Port uint32
-		}
-		if err := Unmarshal(resp, &p); err != nil {
-			return nil, err
-		}
-		laddr.Port = int(p.Port)
-	}
-
-	// Register this forward, using the port number we obtained.
-	ch := c.forwards.add(laddr)
-
-	return &tcpListener{laddr, c, ch}, nil
-}
-
-// forwardList stores a mapping between remote
-// forward requests and the tcpListeners.
-type forwardList struct {
-	sync.Mutex
-	entries []forwardEntry
-}
-
-// forwardEntry represents an established mapping of a laddr on a
-// remote ssh server to a channel connected to a tcpListener.
-type forwardEntry struct {
-	laddr net.Addr
-	c     chan forward
-}
-
-// forward represents an incoming forwarded tcpip connection. The
-// arguments to add/remove/lookup should be address as specified in
-// the original forward-request.
-type forward struct {
-	newCh NewChannel // the ssh client channel underlying this forward
-	raddr net.Addr   // the raddr of the incoming connection
-}
-
-func (l *forwardList) add(addr net.Addr) chan forward {
-	l.Lock()
-	defer l.Unlock()
-	f := forwardEntry{
-		laddr: addr,
-		c:     make(chan forward, 1),
-	}
-	l.entries = append(l.entries, f)
-	return f.c
-}
-
-// See RFC 4254, section 7.2
-type forwardedTCPPayload struct {
-	Addr       string
-	Port       uint32
-	OriginAddr string
-	OriginPort uint32
-}
-
-// parseTCPAddr parses the originating address from the remote into a *net.TCPAddr.
-func parseTCPAddr(addr string, port uint32) (*net.TCPAddr, error) {
-	if port == 0 || port > 65535 {
-		return nil, fmt.Errorf("ssh: port number out of range: %d", port)
-	}
-	ip := net.ParseIP(string(addr))
-	if ip == nil {
-		return nil, fmt.Errorf("ssh: cannot parse IP address %q", addr)
-	}
-	return &net.TCPAddr{IP: ip, Port: int(port)}, nil
-}
-
-func (l *forwardList) handleChannels(in <-chan NewChannel) {
-	for ch := range in {
-		var (
-			laddr net.Addr
-			raddr net.Addr
-			err   error
-		)
-		switch channelType := ch.ChannelType(); channelType {
-		case "forwarded-tcpip":
-			var payload forwardedTCPPayload
-			if err = Unmarshal(ch.ExtraData(), &payload); err != nil {
-				ch.Reject(ConnectionFailed, "could not parse forwarded-tcpip payload: "+err.Error())
-				continue
-			}
-
-			// RFC 4254 section 7.2 specifies that incoming
-			// addresses should list the address, in string
-			// format. It is implied that this should be an IP
-			// address, as it would be impossible to connect to it
-			// otherwise.
-			laddr, err = parseTCPAddr(payload.Addr, payload.Port)
-			if err != nil {
-				ch.Reject(ConnectionFailed, err.Error())
-				continue
-			}
-			raddr, err = parseTCPAddr(payload.OriginAddr, payload.OriginPort)
-			if err != nil {
-				ch.Reject(ConnectionFailed, err.Error())
-				continue
-			}
-
-		case "forwarded-streamlocal@openssh.com":
-			var payload forwardedStreamLocalPayload
-			if err = Unmarshal(ch.ExtraData(), &payload); err != nil {
-				ch.Reject(ConnectionFailed, "could not parse forwarded-streamlocal@openssh.com payload: "+err.Error())
-				continue
-			}
-			laddr = &net.UnixAddr{
-				Name: payload.SocketPath,
-				Net:  "unix",
-			}
-			raddr = &net.UnixAddr{
-				Name: "@",
-				Net:  "unix",
-			}
-		default:
-			panic(fmt.Errorf("ssh: unknown channel type %s", channelType))
-		}
-		if ok := l.forward(laddr, raddr, ch); !ok {
-			// Section 7.2, implementations MUST reject spurious incoming
-			// connections.
-			ch.Reject(Prohibited, "no forward for address")
-			continue
-		}
-
-	}
-}
-
-// remove removes the forward entry, and the channel feeding its
-// listener.
-func (l *forwardList) remove(addr net.Addr) {
-	l.Lock()
-	defer l.Unlock()
-	for i, f := range l.entries {
-		if addr.Network() == f.laddr.Network() && addr.String() == f.laddr.String() {
-			l.entries = append(l.entries[:i], l.entries[i+1:]...)
-			close(f.c)
-			return
-		}
-	}
-}
-
-// closeAll closes and clears all forwards.
-func (l *forwardList) closeAll() {
-	l.Lock()
-	defer l.Unlock()
-	for _, f := range l.entries {
-		close(f.c)
-	}
-	l.entries = nil
-}
-
-func (l *forwardList) forward(laddr, raddr net.Addr, ch NewChannel) bool {
-	l.Lock()
-	defer l.Unlock()
-	for _, f := range l.entries {
-		if laddr.Network() == f.laddr.Network() && laddr.String() == f.laddr.String() {
-			f.c <- forward{newCh: ch, raddr: raddr}
-			return true
-		}
-	}
-	return false
-}
-
-type tcpListener struct {
-	laddr *net.TCPAddr
-
-	conn *Client
-	in   <-chan forward
-}
-
-// Accept waits for and returns the next connection to the listener.
-func (l *tcpListener) Accept() (net.Conn, error) {
-	s, ok := <-l.in
-	if !ok {
-		return nil, io.EOF
-	}
-	ch, incoming, err := s.newCh.Accept()
-	if err != nil {
-		return nil, err
-	}
-	go DiscardRequests(incoming)
-
-	return &chanConn{
-		Channel: ch,
-		laddr:   l.laddr,
-		raddr:   s.raddr,
-	}, nil
-}
-
-// Close closes the listener.
-func (l *tcpListener) Close() error {
-	m := channelForwardMsg{
-		l.laddr.IP.String(),
-		uint32(l.laddr.Port),
-	}
-
-	// this also closes the listener.
-	l.conn.forwards.remove(l.laddr)
-	ok, _, err := l.conn.SendRequest("cancel-tcpip-forward", true, Marshal(&m))
-	if err == nil && !ok {
-		err = errors.New("ssh: cancel-tcpip-forward failed")
-	}
-	return err
-}
-
-// Addr returns the listener's network address.
-func (l *tcpListener) Addr() net.Addr {
-	return l.laddr
-}
-
-// Dial initiates a connection to the addr from the remote host.
-// The resulting connection has a zero LocalAddr() and RemoteAddr().
-func (c *Client) Dial(n, addr string) (net.Conn, error) {
-	var ch Channel
-	switch n {
-	case "tcp", "tcp4", "tcp6":
-		// Parse the address into host and numeric port.
-		host, portString, err := net.SplitHostPort(addr)
-		if err != nil {
-			return nil, err
-		}
-		port, err := strconv.ParseUint(portString, 10, 16)
-		if err != nil {
-			return nil, err
-		}
-		ch, err = c.dial(net.IPv4zero.String(), 0, host, int(port))
-		if err != nil {
-			return nil, err
-		}
-		// Use a zero address for local and remote address.
-		zeroAddr := &net.TCPAddr{
-			IP:   net.IPv4zero,
-			Port: 0,
-		}
-		return &chanConn{
-			Channel: ch,
-			laddr:   zeroAddr,
-			raddr:   zeroAddr,
-		}, nil
-	case "unix":
-		var err error
-		ch, err = c.dialStreamLocal(addr)
-		if err != nil {
-			return nil, err
-		}
-		return &chanConn{
-			Channel: ch,
-			laddr: &net.UnixAddr{
-				Name: "@",
-				Net:  "unix",
-			},
-			raddr: &net.UnixAddr{
-				Name: addr,
-				Net:  "unix",
-			},
-		}, nil
-	default:
-		return nil, fmt.Errorf("ssh: unsupported protocol: %s", n)
-	}
-}
-
-// DialTCP connects to the remote address raddr on the network net,
-// which must be "tcp", "tcp4", or "tcp6".  If laddr is not nil, it is used
-// as the local address for the connection.
-func (c *Client) DialTCP(n string, laddr, raddr *net.TCPAddr) (net.Conn, error) {
-	if laddr == nil {
-		laddr = &net.TCPAddr{
-			IP:   net.IPv4zero,
-			Port: 0,
-		}
-	}
-	ch, err := c.dial(laddr.IP.String(), laddr.Port, raddr.IP.String(), raddr.Port)
-	if err != nil {
-		return nil, err
-	}
-	return &chanConn{
-		Channel: ch,
-		laddr:   laddr,
-		raddr:   raddr,
-	}, nil
-}
-
-// RFC 4254 7.2
-type channelOpenDirectMsg struct {
-	raddr string
-	rport uint32
-	laddr string
-	lport uint32
-}
-
-func (c *Client) dial(laddr string, lport int, raddr string, rport int) (Channel, error) {
-	msg := channelOpenDirectMsg{
-		raddr: raddr,
-		rport: uint32(rport),
-		laddr: laddr,
-		lport: uint32(lport),
-	}
-	ch, in, err := c.OpenChannel("direct-tcpip", Marshal(&msg))
-	if err != nil {
-		return nil, err
-	}
-	go DiscardRequests(in)
-	return ch, err
-}
-
-type tcpChan struct {
-	Channel // the backing channel
-}
-
-// chanConn fulfills the net.Conn interface without
-// the tcpChan having to hold laddr or raddr directly.
-type chanConn struct {
-	Channel
-	laddr, raddr net.Addr
-}
-
-// LocalAddr returns the local network address.
-func (t *chanConn) LocalAddr() net.Addr {
-	return t.laddr
-}
-
-// RemoteAddr returns the remote network address.
-func (t *chanConn) RemoteAddr() net.Addr {
-	return t.raddr
-}
-
-// SetDeadline sets the read and write deadlines associated
-// with the connection.
-func (t *chanConn) SetDeadline(deadline time.Time) error {
-	if err := t.SetReadDeadline(deadline); err != nil {
-		return err
-	}
-	return t.SetWriteDeadline(deadline)
-}
-
-// SetReadDeadline sets the read deadline.
-// A zero value for t means Read will not time out.
-// After the deadline, the error from Read will implement net.Error
-// with Timeout() == true.
-func (t *chanConn) SetReadDeadline(deadline time.Time) error {
-	// for compatibility with previous version,
-	// the error message contains "tcpChan"
-	return errors.New("ssh: tcpChan: deadline not supported")
-}
-
-// SetWriteDeadline exists to satisfy the net.Conn interface
-// but is not implemented by this type.  It always returns an error.
-func (t *chanConn) SetWriteDeadline(deadline time.Time) error {
-	return errors.New("ssh: tcpChan: deadline not supported")
-}
diff --git a/vendor/golang.org/x/crypto/ssh/tcpip_test.go b/vendor/golang.org/x/crypto/ssh/tcpip_test.go
deleted file mode 100644
index f1265cb..0000000
--- a/vendor/golang.org/x/crypto/ssh/tcpip_test.go
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"testing"
-)
-
-func TestAutoPortListenBroken(t *testing.T) {
-	broken := "SSH-2.0-OpenSSH_5.9hh11"
-	works := "SSH-2.0-OpenSSH_6.1"
-	if !isBrokenOpenSSHVersion(broken) {
-		t.Errorf("version %q not marked as broken", broken)
-	}
-	if isBrokenOpenSSHVersion(works) {
-		t.Errorf("version %q marked as broken", works)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/terminal/terminal_test.go b/vendor/golang.org/x/crypto/ssh/terminal/terminal_test.go
deleted file mode 100644
index d9b77c1..0000000
--- a/vendor/golang.org/x/crypto/ssh/terminal/terminal_test.go
+++ /dev/null
@@ -1,358 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux,!appengine netbsd openbsd windows plan9 solaris
-
-package terminal
-
-import (
-	"bytes"
-	"io"
-	"os"
-	"runtime"
-	"testing"
-)
-
-type MockTerminal struct {
-	toSend       []byte
-	bytesPerRead int
-	received     []byte
-}
-
-func (c *MockTerminal) Read(data []byte) (n int, err error) {
-	n = len(data)
-	if n == 0 {
-		return
-	}
-	if n > len(c.toSend) {
-		n = len(c.toSend)
-	}
-	if n == 0 {
-		return 0, io.EOF
-	}
-	if c.bytesPerRead > 0 && n > c.bytesPerRead {
-		n = c.bytesPerRead
-	}
-	copy(data, c.toSend[:n])
-	c.toSend = c.toSend[n:]
-	return
-}
-
-func (c *MockTerminal) Write(data []byte) (n int, err error) {
-	c.received = append(c.received, data...)
-	return len(data), nil
-}
-
-func TestClose(t *testing.T) {
-	c := &MockTerminal{}
-	ss := NewTerminal(c, "> ")
-	line, err := ss.ReadLine()
-	if line != "" {
-		t.Errorf("Expected empty line but got: %s", line)
-	}
-	if err != io.EOF {
-		t.Errorf("Error should have been EOF but got: %s", err)
-	}
-}
-
-var keyPressTests = []struct {
-	in             string
-	line           string
-	err            error
-	throwAwayLines int
-}{
-	{
-		err: io.EOF,
-	},
-	{
-		in:   "\r",
-		line: "",
-	},
-	{
-		in:   "foo\r",
-		line: "foo",
-	},
-	{
-		in:   "a\x1b[Cb\r", // right
-		line: "ab",
-	},
-	{
-		in:   "a\x1b[Db\r", // left
-		line: "ba",
-	},
-	{
-		in:   "a\177b\r", // backspace
-		line: "b",
-	},
-	{
-		in: "\x1b[A\r", // up
-	},
-	{
-		in: "\x1b[B\r", // down
-	},
-	{
-		in:   "line\x1b[A\x1b[B\r", // up then down
-		line: "line",
-	},
-	{
-		in:             "line1\rline2\x1b[A\r", // recall previous line.
-		line:           "line1",
-		throwAwayLines: 1,
-	},
-	{
-		// recall two previous lines and append.
-		in:             "line1\rline2\rline3\x1b[A\x1b[Axxx\r",
-		line:           "line1xxx",
-		throwAwayLines: 2,
-	},
-	{
-		// Ctrl-A to move to beginning of line followed by ^K to kill
-		// line.
-		in:   "a b \001\013\r",
-		line: "",
-	},
-	{
-		// Ctrl-A to move to beginning of line, Ctrl-E to move to end,
-		// finally ^K to kill nothing.
-		in:   "a b \001\005\013\r",
-		line: "a b ",
-	},
-	{
-		in:   "\027\r",
-		line: "",
-	},
-	{
-		in:   "a\027\r",
-		line: "",
-	},
-	{
-		in:   "a \027\r",
-		line: "",
-	},
-	{
-		in:   "a b\027\r",
-		line: "a ",
-	},
-	{
-		in:   "a b \027\r",
-		line: "a ",
-	},
-	{
-		in:   "one two thr\x1b[D\027\r",
-		line: "one two r",
-	},
-	{
-		in:   "\013\r",
-		line: "",
-	},
-	{
-		in:   "a\013\r",
-		line: "a",
-	},
-	{
-		in:   "ab\x1b[D\013\r",
-		line: "a",
-	},
-	{
-		in:   "Ξεσκεπάζω\r",
-		line: "Ξεσκεπάζω",
-	},
-	{
-		in:             "£\r\x1b[A\177\r", // non-ASCII char, enter, up, backspace.
-		line:           "",
-		throwAwayLines: 1,
-	},
-	{
-		in:             "£\r££\x1b[A\x1b[B\177\r", // non-ASCII char, enter, 2x non-ASCII, up, down, backspace, enter.
-		line:           "£",
-		throwAwayLines: 1,
-	},
-	{
-		// Ctrl-D at the end of the line should be ignored.
-		in:   "a\004\r",
-		line: "a",
-	},
-	{
-		// a, b, left, Ctrl-D should erase the b.
-		in:   "ab\x1b[D\004\r",
-		line: "a",
-	},
-	{
-		// a, b, c, d, left, left, ^U should erase to the beginning of
-		// the line.
-		in:   "abcd\x1b[D\x1b[D\025\r",
-		line: "cd",
-	},
-	{
-		// Bracketed paste mode: control sequences should be returned
-		// verbatim in paste mode.
-		in:   "abc\x1b[200~de\177f\x1b[201~\177\r",
-		line: "abcde\177",
-	},
-	{
-		// Enter in bracketed paste mode should still work.
-		in:             "abc\x1b[200~d\refg\x1b[201~h\r",
-		line:           "efgh",
-		throwAwayLines: 1,
-	},
-	{
-		// Lines consisting entirely of pasted data should be indicated as such.
-		in:   "\x1b[200~a\r",
-		line: "a",
-		err:  ErrPasteIndicator,
-	},
-}
-
-func TestKeyPresses(t *testing.T) {
-	for i, test := range keyPressTests {
-		for j := 1; j < len(test.in); j++ {
-			c := &MockTerminal{
-				toSend:       []byte(test.in),
-				bytesPerRead: j,
-			}
-			ss := NewTerminal(c, "> ")
-			for k := 0; k < test.throwAwayLines; k++ {
-				_, err := ss.ReadLine()
-				if err != nil {
-					t.Errorf("Throwaway line %d from test %d resulted in error: %s", k, i, err)
-				}
-			}
-			line, err := ss.ReadLine()
-			if line != test.line {
-				t.Errorf("Line resulting from test %d (%d bytes per read) was '%s', expected '%s'", i, j, line, test.line)
-				break
-			}
-			if err != test.err {
-				t.Errorf("Error resulting from test %d (%d bytes per read) was '%v', expected '%v'", i, j, err, test.err)
-				break
-			}
-		}
-	}
-}
-
-func TestPasswordNotSaved(t *testing.T) {
-	c := &MockTerminal{
-		toSend:       []byte("password\r\x1b[A\r"),
-		bytesPerRead: 1,
-	}
-	ss := NewTerminal(c, "> ")
-	pw, _ := ss.ReadPassword("> ")
-	if pw != "password" {
-		t.Fatalf("failed to read password, got %s", pw)
-	}
-	line, _ := ss.ReadLine()
-	if len(line) > 0 {
-		t.Fatalf("password was saved in history")
-	}
-}
-
-var setSizeTests = []struct {
-	width, height int
-}{
-	{40, 13},
-	{80, 24},
-	{132, 43},
-}
-
-func TestTerminalSetSize(t *testing.T) {
-	for _, setSize := range setSizeTests {
-		c := &MockTerminal{
-			toSend:       []byte("password\r\x1b[A\r"),
-			bytesPerRead: 1,
-		}
-		ss := NewTerminal(c, "> ")
-		ss.SetSize(setSize.width, setSize.height)
-		pw, _ := ss.ReadPassword("Password: ")
-		if pw != "password" {
-			t.Fatalf("failed to read password, got %s", pw)
-		}
-		if string(c.received) != "Password: \r\n" {
-			t.Errorf("failed to set the temporary prompt expected %q, got %q", "Password: ", c.received)
-		}
-	}
-}
-
-func TestReadPasswordLineEnd(t *testing.T) {
-	var tests = []struct {
-		input string
-		want  string
-	}{
-		{"\n", ""},
-		{"\r\n", ""},
-		{"test\r\n", "test"},
-		{"testtesttesttes\n", "testtesttesttes"},
-		{"testtesttesttes\r\n", "testtesttesttes"},
-		{"testtesttesttesttest\n", "testtesttesttesttest"},
-		{"testtesttesttesttest\r\n", "testtesttesttesttest"},
-	}
-	for _, test := range tests {
-		buf := new(bytes.Buffer)
-		if _, err := buf.WriteString(test.input); err != nil {
-			t.Fatal(err)
-		}
-
-		have, err := readPasswordLine(buf)
-		if err != nil {
-			t.Errorf("readPasswordLine(%q) failed: %v", test.input, err)
-			continue
-		}
-		if string(have) != test.want {
-			t.Errorf("readPasswordLine(%q) returns %q, but %q is expected", test.input, string(have), test.want)
-			continue
-		}
-
-		if _, err = buf.WriteString(test.input); err != nil {
-			t.Fatal(err)
-		}
-		have, err = readPasswordLine(buf)
-		if err != nil {
-			t.Errorf("readPasswordLine(%q) failed: %v", test.input, err)
-			continue
-		}
-		if string(have) != test.want {
-			t.Errorf("readPasswordLine(%q) returns %q, but %q is expected", test.input, string(have), test.want)
-			continue
-		}
-	}
-}
-
-func TestMakeRawState(t *testing.T) {
-	fd := int(os.Stdout.Fd())
-	if !IsTerminal(fd) {
-		t.Skip("stdout is not a terminal; skipping test")
-	}
-
-	st, err := GetState(fd)
-	if err != nil {
-		t.Fatalf("failed to get terminal state from GetState: %s", err)
-	}
-
-	if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") {
-		t.Skip("MakeRaw not allowed on iOS; skipping test")
-	}
-
-	defer Restore(fd, st)
-	raw, err := MakeRaw(fd)
-	if err != nil {
-		t.Fatalf("failed to get terminal state from MakeRaw: %s", err)
-	}
-
-	if *st != *raw {
-		t.Errorf("states do not match; was %v, expected %v", raw, st)
-	}
-}
-
-func TestOutputNewlines(t *testing.T) {
-	// \n should be changed to \r\n in terminal output.
-	buf := new(bytes.Buffer)
-	term := NewTerminal(buf, ">")
-
-	term.Write([]byte("1\n2\n"))
-	output := string(buf.Bytes())
-	const expected = "1\r\n2\r\n"
-
-	if output != expected {
-		t.Errorf("incorrect output: was %q, expected %q", output, expected)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/agent_unix_test.go b/vendor/golang.org/x/crypto/ssh/test/agent_unix_test.go
deleted file mode 100644
index f481253..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/agent_unix_test.go
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd
-
-package test
-
-import (
-	"bytes"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/agent"
-)
-
-func TestAgentForward(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	keyring := agent.NewKeyring()
-	if err := keyring.Add(agent.AddedKey{PrivateKey: testPrivateKeys["dsa"]}); err != nil {
-		t.Fatalf("Error adding key: %s", err)
-	}
-	if err := keyring.Add(agent.AddedKey{
-		PrivateKey:       testPrivateKeys["dsa"],
-		ConfirmBeforeUse: true,
-		LifetimeSecs:     3600,
-	}); err != nil {
-		t.Fatalf("Error adding key with constraints: %s", err)
-	}
-	pub := testPublicKeys["dsa"]
-
-	sess, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("NewSession: %v", err)
-	}
-	if err := agent.RequestAgentForwarding(sess); err != nil {
-		t.Fatalf("RequestAgentForwarding: %v", err)
-	}
-
-	if err := agent.ForwardToAgent(conn, keyring); err != nil {
-		t.Fatalf("SetupForwardKeyring: %v", err)
-	}
-	out, err := sess.CombinedOutput("ssh-add -L")
-	if err != nil {
-		t.Fatalf("running ssh-add: %v, out %s", err, out)
-	}
-	key, _, _, _, err := ssh.ParseAuthorizedKey(out)
-	if err != nil {
-		t.Fatalf("ParseAuthorizedKey(%q): %v", out, err)
-	}
-
-	if !bytes.Equal(key.Marshal(), pub.Marshal()) {
-		t.Fatalf("got key %s, want %s", ssh.MarshalAuthorizedKey(key), ssh.MarshalAuthorizedKey(pub))
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/banner_test.go b/vendor/golang.org/x/crypto/ssh/test/banner_test.go
deleted file mode 100644
index d3b21ac..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/banner_test.go
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd
-
-package test
-
-import (
-	"testing"
-)
-
-func TestBannerCallbackAgainstOpenSSH(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-
-	clientConf := clientConfig()
-
-	var receivedBanner string
-	clientConf.BannerCallback = func(message string) error {
-		receivedBanner = message
-		return nil
-	}
-
-	conn := server.Dial(clientConf)
-	defer conn.Close()
-
-	expected := "Server Banner"
-	if receivedBanner != expected {
-		t.Fatalf("got %v; want %v", receivedBanner, expected)
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/cert_test.go b/vendor/golang.org/x/crypto/ssh/test/cert_test.go
deleted file mode 100644
index b231dd8..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/cert_test.go
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd
-
-package test
-
-import (
-	"bytes"
-	"crypto/rand"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// Test both logging in with a cert, and also that the certificate presented by an OpenSSH host can be validated correctly
-func TestCertLogin(t *testing.T) {
-	s := newServer(t)
-	defer s.Shutdown()
-
-	// Use a key different from the default.
-	clientKey := testSigners["dsa"]
-	caAuthKey := testSigners["ecdsa"]
-	cert := &ssh.Certificate{
-		Key:             clientKey.PublicKey(),
-		ValidPrincipals: []string{username()},
-		CertType:        ssh.UserCert,
-		ValidBefore:     ssh.CertTimeInfinity,
-	}
-	if err := cert.SignCert(rand.Reader, caAuthKey); err != nil {
-		t.Fatalf("SetSignature: %v", err)
-	}
-
-	certSigner, err := ssh.NewCertSigner(cert, clientKey)
-	if err != nil {
-		t.Fatalf("NewCertSigner: %v", err)
-	}
-
-	conf := &ssh.ClientConfig{
-		User: username(),
-		HostKeyCallback: (&ssh.CertChecker{
-			IsHostAuthority: func(pk ssh.PublicKey, addr string) bool {
-				return bytes.Equal(pk.Marshal(), testPublicKeys["ca"].Marshal())
-			},
-		}).CheckHostKey,
-	}
-	conf.Auth = append(conf.Auth, ssh.PublicKeys(certSigner))
-
-	for _, test := range []struct {
-		addr    string
-		succeed bool
-	}{
-		{addr: "host.example.com:22", succeed: true},
-		{addr: "host.example.com:10000", succeed: true}, // non-standard port must be OK
-		{addr: "host.example.com", succeed: false},      // port must be specified
-		{addr: "host.ex4mple.com:22", succeed: false},   // wrong host
-	} {
-		client, err := s.TryDialWithAddr(conf, test.addr)
-
-		// Always close client if opened successfully
-		if err == nil {
-			client.Close()
-		}
-
-		// Now evaluate whether the test failed or passed
-		if test.succeed {
-			if err != nil {
-				t.Fatalf("TryDialWithAddr: %v", err)
-			}
-		} else {
-			if err == nil {
-				t.Fatalf("TryDialWithAddr, unexpected success")
-			}
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/dial_unix_test.go b/vendor/golang.org/x/crypto/ssh/test/dial_unix_test.go
deleted file mode 100644
index 091e48c..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/dial_unix_test.go
+++ /dev/null
@@ -1,128 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !windows
-
-package test
-
-// direct-tcpip and direct-streamlocal functional tests
-
-import (
-	"fmt"
-	"io"
-	"io/ioutil"
-	"net"
-	"strings"
-	"testing"
-)
-
-type dialTester interface {
-	TestServerConn(t *testing.T, c net.Conn)
-	TestClientConn(t *testing.T, c net.Conn)
-}
-
-func testDial(t *testing.T, n, listenAddr string, x dialTester) {
-	server := newServer(t)
-	defer server.Shutdown()
-	sshConn := server.Dial(clientConfig())
-	defer sshConn.Close()
-
-	l, err := net.Listen(n, listenAddr)
-	if err != nil {
-		t.Fatalf("Listen: %v", err)
-	}
-	defer l.Close()
-
-	testData := fmt.Sprintf("hello from %s, %s", n, listenAddr)
-	go func() {
-		for {
-			c, err := l.Accept()
-			if err != nil {
-				break
-			}
-			x.TestServerConn(t, c)
-
-			io.WriteString(c, testData)
-			c.Close()
-		}
-	}()
-
-	conn, err := sshConn.Dial(n, l.Addr().String())
-	if err != nil {
-		t.Fatalf("Dial: %v", err)
-	}
-	x.TestClientConn(t, conn)
-	defer conn.Close()
-	b, err := ioutil.ReadAll(conn)
-	if err != nil {
-		t.Fatalf("ReadAll: %v", err)
-	}
-	t.Logf("got %q", string(b))
-	if string(b) != testData {
-		t.Fatalf("expected %q, got %q", testData, string(b))
-	}
-}
-
-type tcpDialTester struct {
-	listenAddr string
-}
-
-func (x *tcpDialTester) TestServerConn(t *testing.T, c net.Conn) {
-	host := strings.Split(x.listenAddr, ":")[0]
-	prefix := host + ":"
-	if !strings.HasPrefix(c.LocalAddr().String(), prefix) {
-		t.Fatalf("expected to start with %q, got %q", prefix, c.LocalAddr().String())
-	}
-	if !strings.HasPrefix(c.RemoteAddr().String(), prefix) {
-		t.Fatalf("expected to start with %q, got %q", prefix, c.RemoteAddr().String())
-	}
-}
-
-func (x *tcpDialTester) TestClientConn(t *testing.T, c net.Conn) {
-	// we use zero addresses. see *Client.Dial.
-	if c.LocalAddr().String() != "0.0.0.0:0" {
-		t.Fatalf("expected \"0.0.0.0:0\", got %q", c.LocalAddr().String())
-	}
-	if c.RemoteAddr().String() != "0.0.0.0:0" {
-		t.Fatalf("expected \"0.0.0.0:0\", got %q", c.RemoteAddr().String())
-	}
-}
-
-func TestDialTCP(t *testing.T) {
-	x := &tcpDialTester{
-		listenAddr: "127.0.0.1:0",
-	}
-	testDial(t, "tcp", x.listenAddr, x)
-}
-
-type unixDialTester struct {
-	listenAddr string
-}
-
-func (x *unixDialTester) TestServerConn(t *testing.T, c net.Conn) {
-	if c.LocalAddr().String() != x.listenAddr {
-		t.Fatalf("expected %q, got %q", x.listenAddr, c.LocalAddr().String())
-	}
-	if c.RemoteAddr().String() != "@" {
-		t.Fatalf("expected \"@\", got %q", c.RemoteAddr().String())
-	}
-}
-
-func (x *unixDialTester) TestClientConn(t *testing.T, c net.Conn) {
-	if c.RemoteAddr().String() != x.listenAddr {
-		t.Fatalf("expected %q, got %q", x.listenAddr, c.RemoteAddr().String())
-	}
-	if c.LocalAddr().String() != "@" {
-		t.Fatalf("expected \"@\", got %q", c.LocalAddr().String())
-	}
-}
-
-func TestDialUnix(t *testing.T) {
-	addr, cleanup := newTempSocket(t)
-	defer cleanup()
-	x := &unixDialTester{
-		listenAddr: addr,
-	}
-	testDial(t, "unix", x.listenAddr, x)
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/doc.go b/vendor/golang.org/x/crypto/ssh/test/doc.go
deleted file mode 100644
index 198f0ca..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/doc.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package test contains integration tests for the
-// golang.org/x/crypto/ssh package.
-package test // import "golang.org/x/crypto/ssh/test"
diff --git a/vendor/golang.org/x/crypto/ssh/test/forward_unix_test.go b/vendor/golang.org/x/crypto/ssh/test/forward_unix_test.go
deleted file mode 100644
index ea81937..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/forward_unix_test.go
+++ /dev/null
@@ -1,194 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd
-
-package test
-
-import (
-	"bytes"
-	"io"
-	"io/ioutil"
-	"math/rand"
-	"net"
-	"testing"
-	"time"
-)
-
-type closeWriter interface {
-	CloseWrite() error
-}
-
-func testPortForward(t *testing.T, n, listenAddr string) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	sshListener, err := conn.Listen(n, listenAddr)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	go func() {
-		sshConn, err := sshListener.Accept()
-		if err != nil {
-			t.Fatalf("listen.Accept failed: %v", err)
-		}
-
-		_, err = io.Copy(sshConn, sshConn)
-		if err != nil && err != io.EOF {
-			t.Fatalf("ssh client copy: %v", err)
-		}
-		sshConn.Close()
-	}()
-
-	forwardedAddr := sshListener.Addr().String()
-	netConn, err := net.Dial(n, forwardedAddr)
-	if err != nil {
-		t.Fatalf("net dial failed: %v", err)
-	}
-
-	readChan := make(chan []byte)
-	go func() {
-		data, _ := ioutil.ReadAll(netConn)
-		readChan <- data
-	}()
-
-	// Invent some data.
-	data := make([]byte, 100*1000)
-	for i := range data {
-		data[i] = byte(i % 255)
-	}
-
-	var sent []byte
-	for len(sent) < 1000*1000 {
-		// Send random sized chunks
-		m := rand.Intn(len(data))
-		n, err := netConn.Write(data[:m])
-		if err != nil {
-			break
-		}
-		sent = append(sent, data[:n]...)
-	}
-	if err := netConn.(closeWriter).CloseWrite(); err != nil {
-		t.Errorf("netConn.CloseWrite: %v", err)
-	}
-
-	read := <-readChan
-
-	if len(sent) != len(read) {
-		t.Fatalf("got %d bytes, want %d", len(read), len(sent))
-	}
-	if bytes.Compare(sent, read) != 0 {
-		t.Fatalf("read back data does not match")
-	}
-
-	if err := sshListener.Close(); err != nil {
-		t.Fatalf("sshListener.Close: %v", err)
-	}
-
-	// Check that the forward disappeared.
-	netConn, err = net.Dial(n, forwardedAddr)
-	if err == nil {
-		netConn.Close()
-		t.Errorf("still listening to %s after closing", forwardedAddr)
-	}
-}
-
-func TestPortForwardTCP(t *testing.T) {
-	testPortForward(t, "tcp", "localhost:0")
-}
-
-func TestPortForwardUnix(t *testing.T) {
-	addr, cleanup := newTempSocket(t)
-	defer cleanup()
-	testPortForward(t, "unix", addr)
-}
-
-func testAcceptClose(t *testing.T, n, listenAddr string) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-
-	sshListener, err := conn.Listen(n, listenAddr)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	quit := make(chan error, 1)
-	go func() {
-		for {
-			c, err := sshListener.Accept()
-			if err != nil {
-				quit <- err
-				break
-			}
-			c.Close()
-		}
-	}()
-	sshListener.Close()
-
-	select {
-	case <-time.After(1 * time.Second):
-		t.Errorf("timeout: listener did not close.")
-	case err := <-quit:
-		t.Logf("quit as expected (error %v)", err)
-	}
-}
-
-func TestAcceptCloseTCP(t *testing.T) {
-	testAcceptClose(t, "tcp", "localhost:0")
-}
-
-func TestAcceptCloseUnix(t *testing.T) {
-	addr, cleanup := newTempSocket(t)
-	defer cleanup()
-	testAcceptClose(t, "unix", addr)
-}
-
-// Check that listeners exit if the underlying client transport dies.
-func testPortForwardConnectionClose(t *testing.T, n, listenAddr string) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-
-	sshListener, err := conn.Listen(n, listenAddr)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	quit := make(chan error, 1)
-	go func() {
-		for {
-			c, err := sshListener.Accept()
-			if err != nil {
-				quit <- err
-				break
-			}
-			c.Close()
-		}
-	}()
-
-	// It would be even nicer if we closed the server side, but it
-	// is more involved as the fd for that side is dup()ed.
-	server.clientConn.Close()
-
-	select {
-	case <-time.After(1 * time.Second):
-		t.Errorf("timeout: listener did not close.")
-	case err := <-quit:
-		t.Logf("quit as expected (error %v)", err)
-	}
-}
-
-func TestPortForwardConnectionCloseTCP(t *testing.T) {
-	testPortForwardConnectionClose(t, "tcp", "localhost:0")
-}
-
-func TestPortForwardConnectionCloseUnix(t *testing.T) {
-	addr, cleanup := newTempSocket(t)
-	defer cleanup()
-	testPortForwardConnectionClose(t, "unix", addr)
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/multi_auth_test.go b/vendor/golang.org/x/crypto/ssh/test/multi_auth_test.go
deleted file mode 100644
index f594d36..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/multi_auth_test.go
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Tests for ssh client multi-auth
-//
-// These tests run a simple go ssh client against OpenSSH server
-// over unix domain sockets. The tests use multiple combinations
-// of password, keyboard-interactive and publickey authentication
-// methods.
-//
-// A wrapper library for making sshd PAM authentication use test
-// passwords is required in ./sshd_test_pw.so. If the library does
-// not exist these tests will be skipped. See compile instructions
-// (for linux) in file ./sshd_test_pw.c.
-
-// +build linux
-
-package test
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// test cases
-type multiAuthTestCase struct {
-	authMethods         []string
-	expectedPasswordCbs int
-	expectedKbdIntCbs   int
-}
-
-// test context
-type multiAuthTestCtx struct {
-	password       string
-	numPasswordCbs int
-	numKbdIntCbs   int
-}
-
-// create test context
-func newMultiAuthTestCtx(t *testing.T) *multiAuthTestCtx {
-	password, err := randomPassword()
-	if err != nil {
-		t.Fatalf("Failed to generate random test password: %s", err.Error())
-	}
-
-	return &multiAuthTestCtx{
-		password: password,
-	}
-}
-
-// password callback
-func (ctx *multiAuthTestCtx) passwordCb() (secret string, err error) {
-	ctx.numPasswordCbs++
-	return ctx.password, nil
-}
-
-// keyboard-interactive callback
-func (ctx *multiAuthTestCtx) kbdIntCb(user, instruction string, questions []string, echos []bool) (answers []string, err error) {
-	if len(questions) == 0 {
-		return nil, nil
-	}
-
-	ctx.numKbdIntCbs++
-	if len(questions) == 1 {
-		return []string{ctx.password}, nil
-	}
-
-	return nil, fmt.Errorf("unsupported keyboard-interactive flow")
-}
-
-// TestMultiAuth runs several subtests for different combinations of password, keyboard-interactive and publickey authentication methods
-func TestMultiAuth(t *testing.T) {
-	testCases := []multiAuthTestCase{
-		// Test password,publickey authentication, assert that password callback is called 1 time
-		multiAuthTestCase{
-			authMethods:         []string{"password", "publickey"},
-			expectedPasswordCbs: 1,
-		},
-		// Test keyboard-interactive,publickey authentication, assert that keyboard-interactive callback is called 1 time
-		multiAuthTestCase{
-			authMethods:       []string{"keyboard-interactive", "publickey"},
-			expectedKbdIntCbs: 1,
-		},
-		// Test publickey,password authentication, assert that password callback is called 1 time
-		multiAuthTestCase{
-			authMethods:         []string{"publickey", "password"},
-			expectedPasswordCbs: 1,
-		},
-		// Test publickey,keyboard-interactive authentication, assert that keyboard-interactive callback is called 1 time
-		multiAuthTestCase{
-			authMethods:       []string{"publickey", "keyboard-interactive"},
-			expectedKbdIntCbs: 1,
-		},
-		// Test password,password authentication, assert that password callback is called 2 times
-		multiAuthTestCase{
-			authMethods:         []string{"password", "password"},
-			expectedPasswordCbs: 2,
-		},
-	}
-
-	for _, testCase := range testCases {
-		t.Run(strings.Join(testCase.authMethods, ","), func(t *testing.T) {
-			ctx := newMultiAuthTestCtx(t)
-
-			server := newServerForConfig(t, "MultiAuth", map[string]string{"AuthMethods": strings.Join(testCase.authMethods, ",")})
-			defer server.Shutdown()
-
-			clientConfig := clientConfig()
-			server.setTestPassword(clientConfig.User, ctx.password)
-
-			publicKeyAuthMethod := clientConfig.Auth[0]
-			clientConfig.Auth = nil
-			for _, authMethod := range testCase.authMethods {
-				switch authMethod {
-				case "publickey":
-					clientConfig.Auth = append(clientConfig.Auth, publicKeyAuthMethod)
-				case "password":
-					clientConfig.Auth = append(clientConfig.Auth,
-						ssh.RetryableAuthMethod(ssh.PasswordCallback(ctx.passwordCb), 5))
-				case "keyboard-interactive":
-					clientConfig.Auth = append(clientConfig.Auth,
-						ssh.RetryableAuthMethod(ssh.KeyboardInteractive(ctx.kbdIntCb), 5))
-				default:
-					t.Fatalf("Unknown authentication method %s", authMethod)
-				}
-			}
-
-			conn := server.Dial(clientConfig)
-			defer conn.Close()
-
-			if ctx.numPasswordCbs != testCase.expectedPasswordCbs {
-				t.Fatalf("passwordCallback was called %d times, expected %d times", ctx.numPasswordCbs, testCase.expectedPasswordCbs)
-			}
-
-			if ctx.numKbdIntCbs != testCase.expectedKbdIntCbs {
-				t.Fatalf("keyboardInteractiveCallback was called %d times, expected %d times", ctx.numKbdIntCbs, testCase.expectedKbdIntCbs)
-			}
-		})
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/session_test.go b/vendor/golang.org/x/crypto/ssh/test/session_test.go
deleted file mode 100644
index 4eb7afd..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/session_test.go
+++ /dev/null
@@ -1,443 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !windows
-
-package test
-
-// Session functional tests.
-
-import (
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"strings"
-	"testing"
-
-	"golang.org/x/crypto/ssh"
-)
-
-func TestRunCommandSuccess(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-	err = session.Run("true")
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-}
-
-func TestHostKeyCheck(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-
-	conf := clientConfig()
-	hostDB := hostKeyDB()
-	conf.HostKeyCallback = hostDB.Check
-
-	// change the keys.
-	hostDB.keys[ssh.KeyAlgoRSA][25]++
-	hostDB.keys[ssh.KeyAlgoDSA][25]++
-	hostDB.keys[ssh.KeyAlgoECDSA256][25]++
-
-	conn, err := server.TryDial(conf)
-	if err == nil {
-		conn.Close()
-		t.Fatalf("dial should have failed.")
-	} else if !strings.Contains(err.Error(), "host key mismatch") {
-		t.Fatalf("'host key mismatch' not found in %v", err)
-	}
-}
-
-func TestRunCommandStdin(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-
-	r, w := io.Pipe()
-	defer r.Close()
-	defer w.Close()
-	session.Stdin = r
-
-	err = session.Run("true")
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-}
-
-func TestRunCommandStdinError(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-
-	r, w := io.Pipe()
-	defer r.Close()
-	session.Stdin = r
-	pipeErr := errors.New("closing write end of pipe")
-	w.CloseWithError(pipeErr)
-
-	err = session.Run("true")
-	if err != pipeErr {
-		t.Fatalf("expected %v, found %v", pipeErr, err)
-	}
-}
-
-func TestRunCommandFailed(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-	err = session.Run(`bash -c "kill -9 $$"`)
-	if err == nil {
-		t.Fatalf("session succeeded: %v", err)
-	}
-}
-
-func TestRunCommandWeClosed(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	err = session.Shell()
-	if err != nil {
-		t.Fatalf("shell failed: %v", err)
-	}
-	err = session.Close()
-	if err != nil {
-		t.Fatalf("shell failed: %v", err)
-	}
-}
-
-func TestFuncLargeRead(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("unable to create new session: %s", err)
-	}
-
-	stdout, err := session.StdoutPipe()
-	if err != nil {
-		t.Fatalf("unable to acquire stdout pipe: %s", err)
-	}
-
-	err = session.Start("dd if=/dev/urandom bs=2048 count=1024")
-	if err != nil {
-		t.Fatalf("unable to execute remote command: %s", err)
-	}
-
-	buf := new(bytes.Buffer)
-	n, err := io.Copy(buf, stdout)
-	if err != nil {
-		t.Fatalf("error reading from remote stdout: %s", err)
-	}
-
-	if n != 2048*1024 {
-		t.Fatalf("Expected %d bytes but read only %d from remote command", 2048, n)
-	}
-}
-
-func TestKeyChange(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conf := clientConfig()
-	hostDB := hostKeyDB()
-	conf.HostKeyCallback = hostDB.Check
-	conf.RekeyThreshold = 1024
-	conn := server.Dial(conf)
-	defer conn.Close()
-
-	for i := 0; i < 4; i++ {
-		session, err := conn.NewSession()
-		if err != nil {
-			t.Fatalf("unable to create new session: %s", err)
-		}
-
-		stdout, err := session.StdoutPipe()
-		if err != nil {
-			t.Fatalf("unable to acquire stdout pipe: %s", err)
-		}
-
-		err = session.Start("dd if=/dev/urandom bs=1024 count=1")
-		if err != nil {
-			t.Fatalf("unable to execute remote command: %s", err)
-		}
-		buf := new(bytes.Buffer)
-		n, err := io.Copy(buf, stdout)
-		if err != nil {
-			t.Fatalf("error reading from remote stdout: %s", err)
-		}
-
-		want := int64(1024)
-		if n != want {
-			t.Fatalf("Expected %d bytes but read only %d from remote command", want, n)
-		}
-	}
-
-	if changes := hostDB.checkCount; changes < 4 {
-		t.Errorf("got %d key changes, want 4", changes)
-	}
-}
-
-func TestInvalidTerminalMode(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-
-	if err = session.RequestPty("vt100", 80, 40, ssh.TerminalModes{255: 1984}); err == nil {
-		t.Fatalf("req-pty failed: successful request with invalid mode")
-	}
-}
-
-func TestValidTerminalMode(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-
-	stdout, err := session.StdoutPipe()
-	if err != nil {
-		t.Fatalf("unable to acquire stdout pipe: %s", err)
-	}
-
-	stdin, err := session.StdinPipe()
-	if err != nil {
-		t.Fatalf("unable to acquire stdin pipe: %s", err)
-	}
-
-	tm := ssh.TerminalModes{ssh.ECHO: 0}
-	if err = session.RequestPty("xterm", 80, 40, tm); err != nil {
-		t.Fatalf("req-pty failed: %s", err)
-	}
-
-	err = session.Shell()
-	if err != nil {
-		t.Fatalf("session failed: %s", err)
-	}
-
-	stdin.Write([]byte("stty -a && exit\n"))
-
-	var buf bytes.Buffer
-	if _, err := io.Copy(&buf, stdout); err != nil {
-		t.Fatalf("reading failed: %s", err)
-	}
-
-	if sttyOutput := buf.String(); !strings.Contains(sttyOutput, "-echo ") {
-		t.Fatalf("terminal mode failure: expected -echo in stty output, got %s", sttyOutput)
-	}
-}
-
-func TestWindowChange(t *testing.T) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conn := server.Dial(clientConfig())
-	defer conn.Close()
-
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("session failed: %v", err)
-	}
-	defer session.Close()
-
-	stdout, err := session.StdoutPipe()
-	if err != nil {
-		t.Fatalf("unable to acquire stdout pipe: %s", err)
-	}
-
-	stdin, err := session.StdinPipe()
-	if err != nil {
-		t.Fatalf("unable to acquire stdin pipe: %s", err)
-	}
-
-	tm := ssh.TerminalModes{ssh.ECHO: 0}
-	if err = session.RequestPty("xterm", 80, 40, tm); err != nil {
-		t.Fatalf("req-pty failed: %s", err)
-	}
-
-	if err := session.WindowChange(100, 100); err != nil {
-		t.Fatalf("window-change failed: %s", err)
-	}
-
-	err = session.Shell()
-	if err != nil {
-		t.Fatalf("session failed: %s", err)
-	}
-
-	stdin.Write([]byte("stty size && exit\n"))
-
-	var buf bytes.Buffer
-	if _, err := io.Copy(&buf, stdout); err != nil {
-		t.Fatalf("reading failed: %s", err)
-	}
-
-	if sttyOutput := buf.String(); !strings.Contains(sttyOutput, "100 100") {
-		t.Fatalf("terminal WindowChange failure: expected \"100 100\" stty output, got %s", sttyOutput)
-	}
-}
-
-func testOneCipher(t *testing.T, cipher string, cipherOrder []string) {
-	server := newServer(t)
-	defer server.Shutdown()
-	conf := clientConfig()
-	conf.Ciphers = []string{cipher}
-	// Don't fail if sshd doesn't have the cipher.
-	conf.Ciphers = append(conf.Ciphers, cipherOrder...)
-	conn, err := server.TryDial(conf)
-	if err != nil {
-		t.Fatalf("TryDial: %v", err)
-	}
-	defer conn.Close()
-
-	numBytes := 4096
-
-	// Exercise sending data to the server
-	if _, _, err := conn.Conn.SendRequest("drop-me", false, make([]byte, numBytes)); err != nil {
-		t.Fatalf("SendRequest: %v", err)
-	}
-
-	// Exercise receiving data from the server
-	session, err := conn.NewSession()
-	if err != nil {
-		t.Fatalf("NewSession: %v", err)
-	}
-
-	out, err := session.Output(fmt.Sprintf("dd if=/dev/zero of=/dev/stdout bs=%d count=1", numBytes))
-	if err != nil {
-		t.Fatalf("Output: %v", err)
-	}
-
-	if len(out) != numBytes {
-		t.Fatalf("got %d bytes, want %d bytes", len(out), numBytes)
-	}
-}
-
-var deprecatedCiphers = []string{
-	"aes128-cbc", "3des-cbc",
-	"arcfour128", "arcfour256",
-}
-
-func TestCiphers(t *testing.T) {
-	var config ssh.Config
-	config.SetDefaults()
-	cipherOrder := append(config.Ciphers, deprecatedCiphers...)
-
-	for _, ciph := range cipherOrder {
-		t.Run(ciph, func(t *testing.T) {
-			testOneCipher(t, ciph, cipherOrder)
-		})
-	}
-}
-
-func TestMACs(t *testing.T) {
-	var config ssh.Config
-	config.SetDefaults()
-	macOrder := config.MACs
-
-	for _, mac := range macOrder {
-		server := newServer(t)
-		defer server.Shutdown()
-		conf := clientConfig()
-		conf.MACs = []string{mac}
-		// Don't fail if sshd doesn't have the MAC.
-		conf.MACs = append(conf.MACs, macOrder...)
-		if conn, err := server.TryDial(conf); err == nil {
-			conn.Close()
-		} else {
-			t.Fatalf("failed for MAC %q", mac)
-		}
-	}
-}
-
-func TestKeyExchanges(t *testing.T) {
-	var config ssh.Config
-	config.SetDefaults()
-	kexOrder := config.KeyExchanges
-	for _, kex := range kexOrder {
-		server := newServer(t)
-		defer server.Shutdown()
-		conf := clientConfig()
-		// Don't fail if sshd doesn't have the kex.
-		conf.KeyExchanges = append([]string{kex}, kexOrder...)
-		conn, err := server.TryDial(conf)
-		if err == nil {
-			conn.Close()
-		} else {
-			t.Errorf("failed for kex %q", kex)
-		}
-	}
-}
-
-func TestClientAuthAlgorithms(t *testing.T) {
-	for _, key := range []string{
-		"rsa",
-		"dsa",
-		"ecdsa",
-		"ed25519",
-	} {
-		server := newServer(t)
-		conf := clientConfig()
-		conf.SetDefaults()
-		conf.Auth = []ssh.AuthMethod{
-			ssh.PublicKeys(testSigners[key]),
-		}
-
-		conn, err := server.TryDial(conf)
-		if err == nil {
-			conn.Close()
-		} else {
-			t.Errorf("failed for key %q", key)
-		}
-
-		server.Shutdown()
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c b/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c
deleted file mode 100644
index 2794a56..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/sshd_test_pw.c
+++ /dev/null
@@ -1,173 +0,0 @@
-// Copyright 2017 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// sshd_test_pw.c
-// Wrapper to inject test password data for sshd PAM authentication
-//
-// This wrapper implements custom versions of getpwnam, getpwnam_r,
-// getspnam and getspnam_r. These functions first call their real
-// libc versions, then check if the requested user matches test user
-// specified in env variable TEST_USER and if so replace the password
-// with crypted() value of TEST_PASSWD env variable.
-//
-// Compile:
-// gcc -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Compile with debug:
-// gcc -DVERBOSE -Wall -shared -o sshd_test_pw.so -fPIC sshd_test_pw.c
-//
-// Run sshd:
-// LD_PRELOAD="sshd_test_pw.so" TEST_USER="..." TEST_PASSWD="..." sshd ...
-
-// +build ignore
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <pwd.h>
-#include <shadow.h>
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-
-#ifdef VERBOSE
-#define DEBUG(X...) fprintf(stderr, X)
-#else
-#define DEBUG(X...) while (0) { }
-#endif
-
-/* crypt() password */
-static char *
-pwhash(char *passwd) {
-  return strdup(crypt(passwd, "$6$"));
-}
-
-/* Pointers to real functions in libc */
-static struct passwd * (*real_getpwnam)(const char *) = NULL;
-static int (*real_getpwnam_r)(const char *, struct passwd *, char *, size_t, struct passwd **) = NULL;
-static struct spwd * (*real_getspnam)(const char *) = NULL;
-static int (*real_getspnam_r)(const char *, struct spwd *, char *, size_t, struct spwd **) = NULL;
-
-/* Cached test user and test password */
-static char *test_user = NULL;
-static char *test_passwd_hash = NULL;
-
-static void
-init(void) {
-  /* Fetch real libc function pointers */
-  real_getpwnam = dlsym(RTLD_NEXT, "getpwnam");
-  real_getpwnam_r = dlsym(RTLD_NEXT, "getpwnam_r");
-  real_getspnam = dlsym(RTLD_NEXT, "getspnam");
-  real_getspnam_r = dlsym(RTLD_NEXT, "getspnam_r");
-  
-  /* abort if env variables are not defined */
-  if (getenv("TEST_USER") == NULL || getenv("TEST_PASSWD") == NULL) {
-    fprintf(stderr, "env variables TEST_USER and TEST_PASSWD are missing\n");
-    abort();
-  }
-
-  /* Fetch test user and test password from env */
-  test_user = strdup(getenv("TEST_USER"));
-  test_passwd_hash = pwhash(getenv("TEST_PASSWD"));
-
-  DEBUG("sshd_test_pw init():\n");
-  DEBUG("\treal_getpwnam: %p\n", real_getpwnam);
-  DEBUG("\treal_getpwnam_r: %p\n", real_getpwnam_r);
-  DEBUG("\treal_getspnam: %p\n", real_getspnam);
-  DEBUG("\treal_getspnam_r: %p\n", real_getspnam_r);
-  DEBUG("\tTEST_USER: '%s'\n", test_user);
-  DEBUG("\tTEST_PASSWD: '%s'\n", getenv("TEST_PASSWD"));
-  DEBUG("\tTEST_PASSWD_HASH: '%s'\n", test_passwd_hash);
-}
-
-static int
-is_test_user(const char *name) {
-  if (test_user != NULL && strcmp(test_user, name) == 0)
-    return 1;
-  return 0;
-}
-
-/* getpwnam */
-
-struct passwd *
-getpwnam(const char *name) {
-  struct passwd *pw;
-
-  DEBUG("sshd_test_pw getpwnam(%s)\n", name);
-  
-  if (real_getpwnam == NULL)
-    init();
-  if ((pw = real_getpwnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    pw->pw_passwd = strdup(test_passwd_hash);
-      
-  return pw;
-}
-
-/* getpwnam_r */
-
-int
-getpwnam_r(const char *name,
-	   struct passwd *pwd,
-	   char *buf,
-	   size_t buflen,
-	   struct passwd **result) {
-  int r;
-
-  DEBUG("sshd_test_pw getpwnam_r(%s)\n", name);
-  
-  if (real_getpwnam_r == NULL)
-    init();
-  if ((r = real_getpwnam_r(name, pwd, buf, buflen, result)) != 0 || *result == NULL)
-    return r;
-
-  if (is_test_user(name))
-    pwd->pw_passwd = strdup(test_passwd_hash);
-  
-  return 0;
-}
-
-/* getspnam */
-
-struct spwd *
-getspnam(const char *name) {
-  struct spwd *sp;
-
-  DEBUG("sshd_test_pw getspnam(%s)\n", name);
-  
-  if (real_getspnam == NULL)
-    init();
-  if ((sp = real_getspnam(name)) == NULL)
-    return NULL;
-
-  if (is_test_user(name))
-    sp->sp_pwdp = strdup(test_passwd_hash);
-  
-  return sp;
-}
-
-/* getspnam_r */
-
-int
-getspnam_r(const char *name,
-	   struct spwd *spbuf,
-	   char *buf,
-	   size_t buflen,
-	   struct spwd **spbufp) {
-  int r;
-
-  DEBUG("sshd_test_pw getspnam_r(%s)\n", name);
-  
-  if (real_getspnam_r == NULL)
-    init();
-  if ((r = real_getspnam_r(name, spbuf, buf, buflen, spbufp)) != 0)
-    return r;
-
-  if (is_test_user(name))
-    spbuf->sp_pwdp = strdup(test_passwd_hash);
-  
-  return r;
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/test_unix_test.go b/vendor/golang.org/x/crypto/ssh/test/test_unix_test.go
deleted file mode 100644
index 2fbe880..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/test_unix_test.go
+++ /dev/null
@@ -1,368 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin dragonfly freebsd linux netbsd openbsd plan9
-
-package test
-
-// functional test harness for unix.
-
-import (
-	"bytes"
-	"crypto/rand"
-	"encoding/base64"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"net"
-	"os"
-	"os/exec"
-	"os/user"
-	"path/filepath"
-	"testing"
-	"text/template"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-const (
-	defaultSshdConfig = `
-Protocol 2
-Banner {{.Dir}}/banner
-HostKey {{.Dir}}/id_rsa
-HostKey {{.Dir}}/id_dsa
-HostKey {{.Dir}}/id_ecdsa
-HostCertificate {{.Dir}}/id_rsa-cert.pub
-Pidfile {{.Dir}}/sshd.pid
-#UsePrivilegeSeparation no
-KeyRegenerationInterval 3600
-ServerKeyBits 768
-SyslogFacility AUTH
-LogLevel DEBUG2
-LoginGraceTime 120
-PermitRootLogin no
-StrictModes no
-RSAAuthentication yes
-PubkeyAuthentication yes
-AuthorizedKeysFile	{{.Dir}}/authorized_keys
-TrustedUserCAKeys {{.Dir}}/id_ecdsa.pub
-IgnoreRhosts yes
-RhostsRSAAuthentication no
-HostbasedAuthentication no
-PubkeyAcceptedKeyTypes=*
-`
-	multiAuthSshdConfigTail = `
-UsePAM yes
-PasswordAuthentication yes
-ChallengeResponseAuthentication yes
-AuthenticationMethods {{.AuthMethods}}
-`
-)
-
-var configTmpl = map[string]*template.Template{
-	"default":   template.Must(template.New("").Parse(defaultSshdConfig)),
-	"MultiAuth": template.Must(template.New("").Parse(defaultSshdConfig + multiAuthSshdConfigTail))}
-
-type server struct {
-	t          *testing.T
-	cleanup    func() // executed during Shutdown
-	configfile string
-	cmd        *exec.Cmd
-	output     bytes.Buffer // holds stderr from sshd process
-
-	testUser     string // test username for sshd
-	testPasswd   string // test password for sshd
-	sshdTestPwSo string // dynamic library to inject a custom password into sshd
-
-	// Client half of the network connection.
-	clientConn net.Conn
-}
-
-func username() string {
-	var username string
-	if user, err := user.Current(); err == nil {
-		username = user.Username
-	} else {
-		// user.Current() currently requires cgo. If an error is
-		// returned attempt to get the username from the environment.
-		log.Printf("user.Current: %v; falling back on $USER", err)
-		username = os.Getenv("USER")
-	}
-	if username == "" {
-		panic("Unable to get username")
-	}
-	return username
-}
-
-type storedHostKey struct {
-	// keys map from an algorithm string to binary key data.
-	keys map[string][]byte
-
-	// checkCount counts the Check calls. Used for testing
-	// rekeying.
-	checkCount int
-}
-
-func (k *storedHostKey) Add(key ssh.PublicKey) {
-	if k.keys == nil {
-		k.keys = map[string][]byte{}
-	}
-	k.keys[key.Type()] = key.Marshal()
-}
-
-func (k *storedHostKey) Check(addr string, remote net.Addr, key ssh.PublicKey) error {
-	k.checkCount++
-	algo := key.Type()
-
-	if k.keys == nil || bytes.Compare(key.Marshal(), k.keys[algo]) != 0 {
-		return fmt.Errorf("host key mismatch. Got %q, want %q", key, k.keys[algo])
-	}
-	return nil
-}
-
-func hostKeyDB() *storedHostKey {
-	keyChecker := &storedHostKey{}
-	keyChecker.Add(testPublicKeys["ecdsa"])
-	keyChecker.Add(testPublicKeys["rsa"])
-	keyChecker.Add(testPublicKeys["dsa"])
-	return keyChecker
-}
-
-func clientConfig() *ssh.ClientConfig {
-	config := &ssh.ClientConfig{
-		User: username(),
-		Auth: []ssh.AuthMethod{
-			ssh.PublicKeys(testSigners["user"]),
-		},
-		HostKeyCallback: hostKeyDB().Check,
-		HostKeyAlgorithms: []string{ // by default, don't allow certs as this affects the hostKeyDB checker
-			ssh.KeyAlgoECDSA256, ssh.KeyAlgoECDSA384, ssh.KeyAlgoECDSA521,
-			ssh.KeyAlgoRSA, ssh.KeyAlgoDSA,
-			ssh.KeyAlgoED25519,
-		},
-	}
-	return config
-}
-
-// unixConnection creates two halves of a connected net.UnixConn.  It
-// is used for connecting the Go SSH client with sshd without opening
-// ports.
-func unixConnection() (*net.UnixConn, *net.UnixConn, error) {
-	dir, err := ioutil.TempDir("", "unixConnection")
-	if err != nil {
-		return nil, nil, err
-	}
-	defer os.Remove(dir)
-
-	addr := filepath.Join(dir, "ssh")
-	listener, err := net.Listen("unix", addr)
-	if err != nil {
-		return nil, nil, err
-	}
-	defer listener.Close()
-	c1, err := net.Dial("unix", addr)
-	if err != nil {
-		return nil, nil, err
-	}
-
-	c2, err := listener.Accept()
-	if err != nil {
-		c1.Close()
-		return nil, nil, err
-	}
-
-	return c1.(*net.UnixConn), c2.(*net.UnixConn), nil
-}
-
-func (s *server) TryDial(config *ssh.ClientConfig) (*ssh.Client, error) {
-	return s.TryDialWithAddr(config, "")
-}
-
-// addr is the user specified host:port. While we don't actually dial it,
-// we need to know this for host key matching
-func (s *server) TryDialWithAddr(config *ssh.ClientConfig, addr string) (*ssh.Client, error) {
-	sshd, err := exec.LookPath("sshd")
-	if err != nil {
-		s.t.Skipf("skipping test: %v", err)
-	}
-
-	c1, c2, err := unixConnection()
-	if err != nil {
-		s.t.Fatalf("unixConnection: %v", err)
-	}
-
-	s.cmd = exec.Command(sshd, "-f", s.configfile, "-i", "-e")
-	f, err := c2.File()
-	if err != nil {
-		s.t.Fatalf("UnixConn.File: %v", err)
-	}
-	defer f.Close()
-	s.cmd.Stdin = f
-	s.cmd.Stdout = f
-	s.cmd.Stderr = &s.output
-
-	if s.sshdTestPwSo != "" {
-		if s.testUser == "" {
-			s.t.Fatal("user missing from sshd_test_pw.so config")
-		}
-		if s.testPasswd == "" {
-			s.t.Fatal("password missing from sshd_test_pw.so config")
-		}
-		s.cmd.Env = append(os.Environ(),
-			fmt.Sprintf("LD_PRELOAD=%s", s.sshdTestPwSo),
-			fmt.Sprintf("TEST_USER=%s", s.testUser),
-			fmt.Sprintf("TEST_PASSWD=%s", s.testPasswd))
-	}
-
-	if err := s.cmd.Start(); err != nil {
-		s.t.Fail()
-		s.Shutdown()
-		s.t.Fatalf("s.cmd.Start: %v", err)
-	}
-	s.clientConn = c1
-	conn, chans, reqs, err := ssh.NewClientConn(c1, addr, config)
-	if err != nil {
-		return nil, err
-	}
-	return ssh.NewClient(conn, chans, reqs), nil
-}
-
-func (s *server) Dial(config *ssh.ClientConfig) *ssh.Client {
-	conn, err := s.TryDial(config)
-	if err != nil {
-		s.t.Fail()
-		s.Shutdown()
-		s.t.Fatalf("ssh.Client: %v", err)
-	}
-	return conn
-}
-
-func (s *server) Shutdown() {
-	if s.cmd != nil && s.cmd.Process != nil {
-		// Don't check for errors; if it fails it's most
-		// likely "os: process already finished", and we don't
-		// care about that. Use os.Interrupt, so child
-		// processes are killed too.
-		s.cmd.Process.Signal(os.Interrupt)
-		s.cmd.Wait()
-	}
-	if s.t.Failed() {
-		// log any output from sshd process
-		s.t.Logf("sshd: %s", s.output.String())
-	}
-	s.cleanup()
-}
-
-func writeFile(path string, contents []byte) {
-	f, err := os.OpenFile(path, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0600)
-	if err != nil {
-		panic(err)
-	}
-	defer f.Close()
-	if _, err := f.Write(contents); err != nil {
-		panic(err)
-	}
-}
-
-// generate random password
-func randomPassword() (string, error) {
-	b := make([]byte, 12)
-	_, err := rand.Read(b)
-	if err != nil {
-		return "", err
-	}
-	return base64.RawURLEncoding.EncodeToString(b), nil
-}
-
-// setTestPassword is used for setting user and password data for sshd_test_pw.so
-// This function also checks that ./sshd_test_pw.so exists and if not calls s.t.Skip()
-func (s *server) setTestPassword(user, passwd string) error {
-	wd, _ := os.Getwd()
-	wrapper := filepath.Join(wd, "sshd_test_pw.so")
-	if _, err := os.Stat(wrapper); err != nil {
-		s.t.Skip(fmt.Errorf("sshd_test_pw.so is not available"))
-		return err
-	}
-
-	s.sshdTestPwSo = wrapper
-	s.testUser = user
-	s.testPasswd = passwd
-	return nil
-}
-
-// newServer returns a new mock ssh server.
-func newServer(t *testing.T) *server {
-	return newServerForConfig(t, "default", map[string]string{})
-}
-
-// newServerForConfig returns a new mock ssh server.
-func newServerForConfig(t *testing.T, config string, configVars map[string]string) *server {
-	if testing.Short() {
-		t.Skip("skipping test due to -short")
-	}
-	u, err := user.Current()
-	if err != nil {
-		t.Fatalf("user.Current: %v", err)
-	}
-	if u.Name == "root" {
-		t.Skip("skipping test because current user is root")
-	}
-	dir, err := ioutil.TempDir("", "sshtest")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f, err := os.Create(filepath.Join(dir, "sshd_config"))
-	if err != nil {
-		t.Fatal(err)
-	}
-	if _, ok := configTmpl[config]; ok == false {
-		t.Fatal(fmt.Errorf("Invalid server config '%s'", config))
-	}
-	configVars["Dir"] = dir
-	err = configTmpl[config].Execute(f, configVars)
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-
-	writeFile(filepath.Join(dir, "banner"), []byte("Server Banner"))
-
-	for k, v := range testdata.PEMBytes {
-		filename := "id_" + k
-		writeFile(filepath.Join(dir, filename), v)
-		writeFile(filepath.Join(dir, filename+".pub"), ssh.MarshalAuthorizedKey(testPublicKeys[k]))
-	}
-
-	for k, v := range testdata.SSHCertificates {
-		filename := "id_" + k + "-cert.pub"
-		writeFile(filepath.Join(dir, filename), v)
-	}
-
-	var authkeys bytes.Buffer
-	for k := range testdata.PEMBytes {
-		authkeys.Write(ssh.MarshalAuthorizedKey(testPublicKeys[k]))
-	}
-	writeFile(filepath.Join(dir, "authorized_keys"), authkeys.Bytes())
-
-	return &server{
-		t:          t,
-		configfile: f.Name(),
-		cleanup: func() {
-			if err := os.RemoveAll(dir); err != nil {
-				t.Error(err)
-			}
-		},
-	}
-}
-
-func newTempSocket(t *testing.T) (string, func()) {
-	dir, err := ioutil.TempDir("", "socket")
-	if err != nil {
-		t.Fatal(err)
-	}
-	deferFunc := func() { os.RemoveAll(dir) }
-	addr := filepath.Join(dir, "sock")
-	return addr, deferFunc
-}
diff --git a/vendor/golang.org/x/crypto/ssh/test/testdata_test.go b/vendor/golang.org/x/crypto/ssh/test/testdata_test.go
deleted file mode 100644
index a053f67..0000000
--- a/vendor/golang.org/x/crypto/ssh/test/testdata_test.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// IMPLEMENTATION NOTE: To avoid a package loop, this file is in three places:
-// ssh/, ssh/agent, and ssh/test/. It should be kept in sync across all three
-// instances.
-
-package test
-
-import (
-	"crypto/rand"
-	"fmt"
-
-	"golang.org/x/crypto/ssh"
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-var (
-	testPrivateKeys map[string]interface{}
-	testSigners     map[string]ssh.Signer
-	testPublicKeys  map[string]ssh.PublicKey
-)
-
-func init() {
-	var err error
-
-	n := len(testdata.PEMBytes)
-	testPrivateKeys = make(map[string]interface{}, n)
-	testSigners = make(map[string]ssh.Signer, n)
-	testPublicKeys = make(map[string]ssh.PublicKey, n)
-	for t, k := range testdata.PEMBytes {
-		testPrivateKeys[t], err = ssh.ParseRawPrivateKey(k)
-		if err != nil {
-			panic(fmt.Sprintf("Unable to parse test key %s: %v", t, err))
-		}
-		testSigners[t], err = ssh.NewSignerFromKey(testPrivateKeys[t])
-		if err != nil {
-			panic(fmt.Sprintf("Unable to create signer for test key %s: %v", t, err))
-		}
-		testPublicKeys[t] = testSigners[t].PublicKey()
-	}
-
-	// Create a cert and sign it for use in tests.
-	testCert := &ssh.Certificate{
-		Nonce:           []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		ValidPrincipals: []string{"gopher1", "gopher2"}, // increases test coverage
-		ValidAfter:      0,                              // unix epoch
-		ValidBefore:     ssh.CertTimeInfinity,           // The end of currently representable time.
-		Reserved:        []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		Key:             testPublicKeys["ecdsa"],
-		SignatureKey:    testPublicKeys["rsa"],
-		Permissions: ssh.Permissions{
-			CriticalOptions: map[string]string{},
-			Extensions:      map[string]string{},
-		},
-	}
-	testCert.SignCert(rand.Reader, testSigners["rsa"])
-	testPrivateKeys["cert"] = testPrivateKeys["ecdsa"]
-	testSigners["cert"], err = ssh.NewCertSigner(testCert, testSigners["ecdsa"])
-	if err != nil {
-		panic(fmt.Sprintf("Unable to create certificate signer: %v", err))
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/testdata/doc.go b/vendor/golang.org/x/crypto/ssh/testdata/doc.go
deleted file mode 100644
index fcae47c..0000000
--- a/vendor/golang.org/x/crypto/ssh/testdata/doc.go
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This package contains test data shared between the various subpackages of
-// the golang.org/x/crypto/ssh package. Under no circumstance should
-// this data be used for production code.
-package testdata // import "golang.org/x/crypto/ssh/testdata"
diff --git a/vendor/golang.org/x/crypto/ssh/testdata/keys.go b/vendor/golang.org/x/crypto/ssh/testdata/keys.go
deleted file mode 100644
index 521b6be..0000000
--- a/vendor/golang.org/x/crypto/ssh/testdata/keys.go
+++ /dev/null
@@ -1,198 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package testdata
-
-var PEMBytes = map[string][]byte{
-	"dsa": []byte(`-----BEGIN DSA PRIVATE KEY-----
-MIIBuwIBAAKBgQD6PDSEyXiI9jfNs97WuM46MSDCYlOqWw80ajN16AohtBncs1YB
-lHk//dQOvCYOsYaE+gNix2jtoRjwXhDsc25/IqQbU1ahb7mB8/rsaILRGIbA5WH3
-EgFtJmXFovDz3if6F6TzvhFpHgJRmLYVR8cqsezL3hEZOvvs2iH7MorkxwIVAJHD
-nD82+lxh2fb4PMsIiaXudAsBAoGAQRf7Q/iaPRn43ZquUhd6WwvirqUj+tkIu6eV
-2nZWYmXLlqFQKEy4Tejl7Wkyzr2OSYvbXLzo7TNxLKoWor6ips0phYPPMyXld14r
-juhT24CrhOzuLMhDduMDi032wDIZG4Y+K7ElU8Oufn8Sj5Wge8r6ANmmVgmFfynr
-FhdYCngCgYEA3ucGJ93/Mx4q4eKRDxcWD3QzWyqpbRVRRV1Vmih9Ha/qC994nJFz
-DQIdjxDIT2Rk2AGzMqFEB68Zc3O+Wcsmz5eWWzEwFxaTwOGWTyDqsDRLm3fD+QYj
-nOwuxb0Kce+gWI8voWcqC9cyRm09jGzu2Ab3Bhtpg8JJ8L7gS3MRZK4CFEx4UAfY
-Fmsr0W6fHB9nhS4/UXM8
------END DSA PRIVATE KEY-----
-`),
-	"ecdsa": []byte(`-----BEGIN EC PRIVATE KEY-----
-MHcCAQEEINGWx0zo6fhJ/0EAfrPzVFyFC9s18lBt3cRoEDhS3ARooAoGCCqGSM49
-AwEHoUQDQgAEi9Hdw6KvZcWxfg2IDhA7UkpDtzzt6ZqJXSsFdLd+Kx4S3Sx4cVO+
-6/ZOXRnPmNAlLUqjShUsUBBngG0u2fqEqA==
------END EC PRIVATE KEY-----
-`),
-	"ecdsap256": []byte(`-----BEGIN EC PRIVATE KEY-----
-MHcCAQEEIAPCE25zK0PQSnsgVcEbM1mbKTASH4pqb5QJajplDwDZoAoGCCqGSM49
-AwEHoUQDQgAEWy8TxGcIHRh5XGpO4dFVfDjeNY+VkgubQrf/eyFJZHxAn1SKraXU
-qJUjTKj1z622OxYtJ5P7s9CfAEVsTzLCzg==
------END EC PRIVATE KEY-----
-`),
-	"ecdsap384": []byte(`-----BEGIN EC PRIVATE KEY-----
-MIGkAgEBBDBWfSnMuNKq8J9rQLzzEkx3KAoEohSXqhE/4CdjEYtoU2i22HW80DDS
-qQhYNHRAduygBwYFK4EEACKhZANiAAQWaDMAd0HUd8ZiXCX7mYDDnC54gwH/nG43
-VhCUEYmF7HMZm/B9Yn3GjFk3qYEDEvuF/52+NvUKBKKaLbh32AWxMv0ibcoba4cz
-hL9+hWYhUD9XIUlzMWiZ2y6eBE9PdRI=
------END EC PRIVATE KEY-----
-`),
-	"ecdsap521": []byte(`-----BEGIN EC PRIVATE KEY-----
-MIHcAgEBBEIBrkYpQcy8KTVHNiAkjlFZwee90224Bu6wz94R4OBo+Ts0eoAQG7SF
-iaygEDMUbx6kTgXTBcKZ0jrWPKakayNZ/kigBwYFK4EEACOhgYkDgYYABADFuvLV
-UoaCDGHcw5uNfdRIsvaLKuWSpLsl48eWGZAwdNG432GDVKduO+pceuE+8XzcyJb+
-uMv+D2b11Q/LQUcHJwE6fqbm8m3EtDKPsoKs0u/XUJb0JsH4J8lkZzbUTjvGYamn
-FFlRjzoB3Oxu8UQgb+MWPedtH9XYBbg9biz4jJLkXQ==
------END EC PRIVATE KEY-----
-`),
-	"rsa": []byte(`-----BEGIN RSA PRIVATE KEY-----
-MIICXAIBAAKBgQC8A6FGHDiWCSREAXCq6yBfNVr0xCVG2CzvktFNRpue+RXrGs/2
-a6ySEJQb3IYquw7HlJgu6fg3WIWhOmHCjfpG0PrL4CRwbqQ2LaPPXhJErWYejcD8
-Di00cF3677+G10KMZk9RXbmHtuBFZT98wxg8j+ZsBMqGM1+7yrWUvynswQIDAQAB
-AoGAJMCk5vqfSRzyXOTXLGIYCuR4Kj6pdsbNSeuuRGfYBeR1F2c/XdFAg7D/8s5R
-38p/Ih52/Ty5S8BfJtwtvgVY9ecf/JlU/rl/QzhG8/8KC0NG7KsyXklbQ7gJT8UT
-Ojmw5QpMk+rKv17ipDVkQQmPaj+gJXYNAHqImke5mm/K/h0CQQDciPmviQ+DOhOq
-2ZBqUfH8oXHgFmp7/6pXw80DpMIxgV3CwkxxIVx6a8lVH9bT/AFySJ6vXq4zTuV9
-6QmZcZzDAkEA2j/UXJPIs1fQ8z/6sONOkU/BjtoePFIWJlRxdN35cZjXnBraX5UR
-fFHkePv4YwqmXNqrBOvSu+w2WdSDci+IKwJAcsPRc/jWmsrJW1q3Ha0hSf/WG/Bu
-X7MPuXaKpP/DkzGoUmb8ks7yqj6XWnYkPNLjCc8izU5vRwIiyWBRf4mxMwJBAILa
-NDvRS0rjwt6lJGv7zPZoqDc65VfrK2aNyHx2PgFyzwrEOtuF57bu7pnvEIxpLTeM
-z26i6XVMeYXAWZMTloMCQBbpGgEERQpeUknLBqUHhg/wXF6+lFA+vEGnkY+Dwab2
-KCXFGd+SQ5GdUcEMe9isUH6DYj/6/yCDoFrXXmpQb+M=
------END RSA PRIVATE KEY-----
-`),
-	"ed25519": []byte(`-----BEGIN OPENSSH PRIVATE KEY-----
-b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
-QyNTUxOQAAACA+3f7hS7g5UWwXOGVTrMfhmxyrjqz7Sxxbx7I1j8DvvwAAAJhAFfkOQBX5
-DgAAAAtzc2gtZWQyNTUxOQAAACA+3f7hS7g5UWwXOGVTrMfhmxyrjqz7Sxxbx7I1j8Dvvw
-AAAEAaYmXltfW6nhRo3iWGglRB48lYq0z0Q3I3KyrdutEr6j7d/uFLuDlRbBc4ZVOsx+Gb
-HKuOrPtLHFvHsjWPwO+/AAAAE2dhcnRvbm1AZ2FydG9ubS14cHMBAg==
------END OPENSSH PRIVATE KEY-----
-`),
-	"rsa-openssh-format": []byte(`-----BEGIN OPENSSH PRIVATE KEY-----
-b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAlwAAAAdzc2gtcn
-NhAAAAAwEAAQAAAIEAwa48yfWFi3uIdqzuf9X7C2Zxfea/Iaaw0zIwHudpF8U92WVIiC5l
-oEuW1+OaVi3UWfIEjWMV1tHGysrHOwtwc34BPCJqJknUQO/KtDTBTJ4Pryhw1bWPC999Lz
-a+yrCTdNQYBzoROXKExZgPFh9pTMi5wqpHDuOQ2qZFIEI3lT0AAAIQWL0H31i9B98AAAAH
-c3NoLXJzYQAAAIEAwa48yfWFi3uIdqzuf9X7C2Zxfea/Iaaw0zIwHudpF8U92WVIiC5loE
-uW1+OaVi3UWfIEjWMV1tHGysrHOwtwc34BPCJqJknUQO/KtDTBTJ4Pryhw1bWPC999Lza+
-yrCTdNQYBzoROXKExZgPFh9pTMi5wqpHDuOQ2qZFIEI3lT0AAAADAQABAAAAgCThyTGsT4
-IARDxVMhWl6eiB2ZrgFgWSeJm/NOqtppWgOebsIqPMMg4UVuVFsl422/lE3RkPhVkjGXgE
-pWvZAdCnmLmApK8wK12vF334lZhZT7t3Z9EzJps88PWEHo7kguf285HcnUM7FlFeissJdk
-kXly34y7/3X/a6Tclm+iABAAAAQE0xR/KxZ39slwfMv64Rz7WKk1PPskaryI29aHE3mKHk
-pY2QA+P3QlrKxT/VWUMjHUbNNdYfJm48xu0SGNMRdKMAAABBAORh2NP/06JUV3J9W/2Hju
-X1ViJuqqcQnJPVzpgSL826EC2xwOECTqoY8uvFpUdD7CtpksIxNVqRIhuNOlz0lqEAAABB
-ANkaHTTaPojClO0dKJ/Zjs7pWOCGliebBYprQ/Y4r9QLBkC/XaWMS26gFIrjgC7D2Rv+rZ
-wSD0v0RcmkITP1ZR0AAAAYcHF1ZXJuYUBMdWNreUh5ZHJvLmxvY2FsAQID
------END OPENSSH PRIVATE KEY-----`),
-	"user": []byte(`-----BEGIN EC PRIVATE KEY-----
-MHcCAQEEILYCAeq8f7V4vSSypRw7pxy8yz3V5W4qg8kSC3zJhqpQoAoGCCqGSM49
-AwEHoUQDQgAEYcO2xNKiRUYOLEHM7VYAp57HNyKbOdYtHD83Z4hzNPVC4tM5mdGD
-PLL8IEwvYu2wq+lpXfGQnNMbzYf9gspG0w==
------END EC PRIVATE KEY-----
-`),
-	"ca": []byte(`-----BEGIN RSA PRIVATE KEY-----
-MIIEpAIBAAKCAQEAvg9dQ9IRG59lYJb+GESfKWTch4yBpr7Ydw1jkK6vvtrx9jLo
-5hkA8X6+ElRPRqTAZSlN5cBm6YCAcQIOsmXDUn6Oj1lVPQAoOjTBTvsjM3NjGhvv
-52kHTY0nsMsBeY9q5DTtlzmlYkVUq2a6Htgf2mNi01dIw5fJ7uTTo8EbNf7O0i3u
-c9a8P19HaZl5NKiWN4EIZkfB2WdXYRJCVBsGgQj3dE/GrEmH9QINq1A+GkNvK96u
-vZm8H1jjmuqzHplWa7lFeXcx8FTVTbVb/iJrZ2Lc/JvIPitKZWhqbR59yrGjpwEp
-Id7bo4WhO5L3OB0fSIJYvfu+o4WYnt4f3UzecwIDAQABAoIBABRD9yHgKErVuC2Q
-bA+SYZY8VvdtF/X7q4EmQFORDNRA7EPgMc03JU6awRGbQ8i4kHs46EFzPoXvWcKz
-AXYsO6N0Myc900Tp22A5d9NAHATEbPC/wdje7hRq1KyZONMJY9BphFv3nZbY5apR
-Dc90JBFZP5RhXjTc3n9GjvqLAKfFEKVmPRCvqxCOZunw6XR+SgIQLJo36nsIsbhW
-QUXIVaCI6cXMN8bRPm8EITdBNZu06Fpu4ZHm6VaxlXN9smERCDkgBSNXNWHKxmmA
-c3Glo2DByUr2/JFBOrLEe9fkYgr24KNCQkHVcSaFxEcZvTggr7StjKISVHlCNEaB
-7Q+kPoECgYEA3zE9FmvFGoQCU4g4Nl3dpQHs6kaAW8vJlrmq3xsireIuaJoa2HMe
-wYdIvgCnK9DIjyxd5OWnE4jXtAEYPsyGD32B5rSLQrRO96lgb3f4bESCLUb3Bsn/
-sdgeE3p1xZMA0B59htqCrvVgN9k8WxyevBxYl3/gSBm/p8OVH1RTW/ECgYEA2f9Z
-95OLj0KQHQtxQXf+I3VjhCw3LkLW39QZOXVI0QrCJfqqP7uxsJXH9NYX0l0GFTcR
-kRrlyoaSU1EGQosZh+n1MvplGBTkTSV47/bPsTzFpgK2NfEZuFm9RoWgltS+nYeH
-Y2k4mnAN3PhReCMwuprmJz8GRLsO3Cs2s2YylKMCgYEA2UX+uO/q7jgqZ5UJW+ue
-1H5+W0aMuFA3i7JtZEnvRaUVFqFGlwXin/WJ2+WY1++k/rPrJ+Rk9IBXtBUIvEGw
-FC5TIfsKQsJyyWgqx/jbbtJ2g4s8+W/1qfTAuqeRNOg5d2DnRDs90wJuS4//0JaY
-9HkHyVwkQyxFxhSA/AHEMJECgYA2MvyFR1O9bIk0D3I7GsA+xKLXa77Ua53MzIjw
-9i4CezBGDQpjCiFli/fI8am+jY5DnAtsDknvjoG24UAzLy5L0mk6IXMdB6SzYYut
-7ak5oahqW+Y9hxIj+XvLmtGQbphtxhJtLu35x75KoBpxSh6FZpmuTEccs31AVCYn
-eFM/DQKBgQDOPUwbLKqVi6ddFGgrV9MrWw+SWsDa43bPuyvYppMM3oqesvyaX1Dt
-qDvN7owaNxNM4OnfKcZr91z8YPVCFo4RbBif3DXRzjNNBlxEjHBtuMOikwvsmucN
-vIrbeEpjTiUMTEAr6PoTiVHjsfS8WAM6MDlF5M+2PNswDsBpa2yLgA==
------END RSA PRIVATE KEY-----
-`),
-}
-
-var SSHCertificates = map[string][]byte{
-	// The following are corresponding certificates for the private keys above, signed by the CA key
-	// Generated by the following commands:
-	//
-	// 1. Assumes "rsa" key above in file named "rsa", write out the public key to "rsa.pub":
-	//    ssh-keygen -y -f rsa > rsa.pu
-	//
-	// 2. Assumes "ca" key above in file named "ca", sign a cert for "rsa.pub":
-	//    ssh-keygen -s ca -h -n host.example.com -V +500w -I host.example.com-key rsa.pub
-	"rsa": []byte(`ssh-rsa-cert-v01@openssh.com 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 host.example.com
-`),
-}
-
-var PEMEncryptedKeys = []struct {
-	Name          string
-	EncryptionKey string
-	PEMBytes      []byte
-}{
-	0: {
-		Name:          "rsa-encrypted",
-		EncryptionKey: "r54-G0pher_t3st$",
-		PEMBytes: []byte(`-----BEGIN RSA PRIVATE KEY-----
-Proc-Type: 4,ENCRYPTED
-DEK-Info: AES-128-CBC,3E1714DE130BC5E81327F36564B05462
-
-MqW88sud4fnWk/Jk3fkjh7ydu51ZkHLN5qlQgA4SkAXORPPMj2XvqZOv1v2LOgUV
-dUevUn8PZK7a9zbZg4QShUSzwE5k6wdB7XKPyBgI39mJ79GBd2U4W3h6KT6jIdWA
-goQpluxkrzr2/X602IaxLEre97FT9mpKC6zxKCLvyFWVIP9n3OSFS47cTTXyFr+l
-7PdRhe60nn6jSBgUNk/Q1lAvEQ9fufdPwDYY93F1wyJ6lOr0F1+mzRrMbH67NyKs
-rG8J1Fa7cIIre7ueKIAXTIne7OAWqpU9UDgQatDtZTbvA7ciqGsSFgiwwW13N+Rr
-hN8MkODKs9cjtONxSKi05s206A3NDU6STtZ3KuPDjFE1gMJODotOuqSM+cxKfyFq
-wxpk/CHYCDdMAVBSwxb/vraOHamylL4uCHpJdBHypzf2HABt+lS8Su23uAmL87DR
-yvyCS/lmpuNTndef6qHPRkoW2EV3xqD3ovosGf7kgwGJUk2ZpCLVteqmYehKlZDK
-r/Jy+J26ooI2jIg9bjvD1PZq+Mv+2dQ1RlDrPG3PB+rEixw6vBaL9x3jatCd4ej7
-XG7lb3qO9xFpLsx89tkEcvpGR+broSpUJ6Mu5LBCVmrvqHjvnDhrZVz1brMiQtU9
-iMZbgXqDLXHd6ERWygk7OTU03u+l1gs+KGMfmS0h0ZYw6KGVLgMnsoxqd6cFSKNB
-8Ohk9ZTZGCiovlXBUepyu8wKat1k8YlHSfIHoRUJRhhcd7DrmojC+bcbMIZBU22T
-Pl2ftVRGtcQY23lYd0NNKfebF7ncjuLWQGy+vZW+7cgfI6wPIbfYfP6g7QAutk6W
-KQx0AoX5woZ6cNxtpIrymaVjSMRRBkKQrJKmRp3pC/lul5E5P2cueMs1fj4OHTbJ
-lAUv88ywr+R+mRgYQlFW/XQ653f6DT4t6+njfO9oBcPrQDASZel3LjXLpjjYG/N5
-+BWnVexuJX9ika8HJiFl55oqaKb+WknfNhk5cPY+x7SDV9ywQeMiDZpr0ffeYAEP
-LlwwiWRDYpO+uwXHSFF3+JjWwjhs8m8g99iFb7U93yKgBB12dCEPPa2ZeH9wUHMJ
-sreYhNuq6f4iWWSXpzN45inQqtTi8jrJhuNLTT543ErW7DtntBO2rWMhff3aiXbn
-Uy3qzZM1nPbuCGuBmP9L2dJ3Z5ifDWB4JmOyWY4swTZGt9AVmUxMIKdZpRONx8vz
-I9u9nbVPGZBcou50Pa0qTLbkWsSL94MNXrARBxzhHC9Zs6XNEtwN7mOuii7uMkVc
-adrxgknBH1J1N+NX/eTKzUwJuPvDtA+Z5ILWNN9wpZT/7ed8zEnKHPNUexyeT5g3
-uw9z9jH7ffGxFYlx87oiVPHGOrCXYZYW5uoZE31SCBkbtNuffNRJRKIFeipmpJ3P
-7bpAG+kGHMelQH6b+5K1Qgsv4tpuSyKeTKpPFH9Av5nN4P1ZBm9N80tzbNWqjSJm
-S7rYdHnuNEVnUGnRmEUMmVuYZnNBEVN/fP2m2SEwXcP3Uh7TiYlcWw10ygaGmOr7
-MvMLGkYgQ4Utwnd98mtqa0jr0hK2TcOSFir3AqVvXN3XJj4cVULkrXe4Im1laWgp
------END RSA PRIVATE KEY-----
-`),
-	},
-
-	1: {
-		Name:          "dsa-encrypted",
-		EncryptionKey: "qG0pher-dsa_t3st$",
-		PEMBytes: []byte(`-----BEGIN DSA PRIVATE KEY-----
-Proc-Type: 4,ENCRYPTED
-DEK-Info: AES-128-CBC,7CE7A6E4A647DC01AF860210B15ADE3E
-
-hvnBpI99Hceq/55pYRdOzBLntIEis02JFNXuLEydWL+RJBFDn7tA+vXec0ERJd6J
-G8JXlSOAhmC2H4uK3q2xR8/Y3yL95n6OIcjvCBiLsV+o3jj1MYJmErxP6zRtq4w3
-JjIjGHWmaYFSxPKQ6e8fs74HEqaeMV9ONUoTtB+aISmgaBL15Fcoayg245dkBvVl
-h5Kqspe7yvOBmzA3zjRuxmSCqKJmasXM7mqs3vIrMxZE3XPo1/fWKcPuExgpVQoT
-HkJZEoIEIIPnPMwT2uYbFJSGgPJVMDT84xz7yvjCdhLmqrsXgs5Qw7Pw0i0c0BUJ
-b7fDJ2UhdiwSckWGmIhTLlJZzr8K+JpjCDlP+REYBI5meB7kosBnlvCEHdw2EJkH
-0QDc/2F4xlVrHOLbPRFyu1Oi2Gvbeoo9EsM/DThpd1hKAlb0sF5Y0y0d+owv0PnE
-R/4X3HWfIdOHsDUvJ8xVWZ4BZk9Zk9qol045DcFCehpr/3hslCrKSZHakLt9GI58
-vVQJ4L0aYp5nloLfzhViZtKJXRLkySMKdzYkIlNmW1oVGl7tce5UCNI8Nok4j6yn
-IiHM7GBn+0nJoKTXsOGMIBe3ulKlKVxLjEuk9yivh/8=
------END DSA PRIVATE KEY-----
-`),
-	},
-}
diff --git a/vendor/golang.org/x/crypto/ssh/testdata_test.go b/vendor/golang.org/x/crypto/ssh/testdata_test.go
deleted file mode 100644
index 2da8c79..0000000
--- a/vendor/golang.org/x/crypto/ssh/testdata_test.go
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// IMPLEMENTATION NOTE: To avoid a package loop, this file is in three places:
-// ssh/, ssh/agent, and ssh/test/. It should be kept in sync across all three
-// instances.
-
-package ssh
-
-import (
-	"crypto/rand"
-	"fmt"
-
-	"golang.org/x/crypto/ssh/testdata"
-)
-
-var (
-	testPrivateKeys map[string]interface{}
-	testSigners     map[string]Signer
-	testPublicKeys  map[string]PublicKey
-)
-
-func init() {
-	var err error
-
-	n := len(testdata.PEMBytes)
-	testPrivateKeys = make(map[string]interface{}, n)
-	testSigners = make(map[string]Signer, n)
-	testPublicKeys = make(map[string]PublicKey, n)
-	for t, k := range testdata.PEMBytes {
-		testPrivateKeys[t], err = ParseRawPrivateKey(k)
-		if err != nil {
-			panic(fmt.Sprintf("Unable to parse test key %s: %v", t, err))
-		}
-		testSigners[t], err = NewSignerFromKey(testPrivateKeys[t])
-		if err != nil {
-			panic(fmt.Sprintf("Unable to create signer for test key %s: %v", t, err))
-		}
-		testPublicKeys[t] = testSigners[t].PublicKey()
-	}
-
-	// Create a cert and sign it for use in tests.
-	testCert := &Certificate{
-		Nonce:           []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		ValidPrincipals: []string{"gopher1", "gopher2"}, // increases test coverage
-		ValidAfter:      0,                              // unix epoch
-		ValidBefore:     CertTimeInfinity,               // The end of currently representable time.
-		Reserved:        []byte{},                       // To pass reflect.DeepEqual after marshal & parse, this must be non-nil
-		Key:             testPublicKeys["ecdsa"],
-		SignatureKey:    testPublicKeys["rsa"],
-		Permissions: Permissions{
-			CriticalOptions: map[string]string{},
-			Extensions:      map[string]string{},
-		},
-	}
-	testCert.SignCert(rand.Reader, testSigners["rsa"])
-	testPrivateKeys["cert"] = testPrivateKeys["ecdsa"]
-	testSigners["cert"], err = NewCertSigner(testCert, testSigners["ecdsa"])
-	if err != nil {
-		panic(fmt.Sprintf("Unable to create certificate signer: %v", err))
-	}
-}
diff --git a/vendor/golang.org/x/crypto/ssh/transport.go b/vendor/golang.org/x/crypto/ssh/transport.go
deleted file mode 100644
index f6fae1d..0000000
--- a/vendor/golang.org/x/crypto/ssh/transport.go
+++ /dev/null
@@ -1,353 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bufio"
-	"bytes"
-	"errors"
-	"io"
-	"log"
-)
-
-// debugTransport if set, will print packet types as they go over the
-// wire. No message decoding is done, to minimize the impact on timing.
-const debugTransport = false
-
-const (
-	gcmCipherID    = "aes128-gcm@openssh.com"
-	aes128cbcID    = "aes128-cbc"
-	tripledescbcID = "3des-cbc"
-)
-
-// packetConn represents a transport that implements packet based
-// operations.
-type packetConn interface {
-	// Encrypt and send a packet of data to the remote peer.
-	writePacket(packet []byte) error
-
-	// Read a packet from the connection. The read is blocking,
-	// i.e. if error is nil, then the returned byte slice is
-	// always non-empty.
-	readPacket() ([]byte, error)
-
-	// Close closes the write-side of the connection.
-	Close() error
-}
-
-// transport is the keyingTransport that implements the SSH packet
-// protocol.
-type transport struct {
-	reader connectionState
-	writer connectionState
-
-	bufReader *bufio.Reader
-	bufWriter *bufio.Writer
-	rand      io.Reader
-	isClient  bool
-	io.Closer
-}
-
-// packetCipher represents a combination of SSH encryption/MAC
-// protocol.  A single instance should be used for one direction only.
-type packetCipher interface {
-	// writePacket encrypts the packet and writes it to w. The
-	// contents of the packet are generally scrambled.
-	writePacket(seqnum uint32, w io.Writer, rand io.Reader, packet []byte) error
-
-	// readPacket reads and decrypts a packet of data. The
-	// returned packet may be overwritten by future calls of
-	// readPacket.
-	readPacket(seqnum uint32, r io.Reader) ([]byte, error)
-}
-
-// connectionState represents one side (read or write) of the
-// connection. This is necessary because each direction has its own
-// keys, and can even have its own algorithms
-type connectionState struct {
-	packetCipher
-	seqNum           uint32
-	dir              direction
-	pendingKeyChange chan packetCipher
-}
-
-// prepareKeyChange sets up key material for a keychange. The key changes in
-// both directions are triggered by reading and writing a msgNewKey packet
-// respectively.
-func (t *transport) prepareKeyChange(algs *algorithms, kexResult *kexResult) error {
-	ciph, err := newPacketCipher(t.reader.dir, algs.r, kexResult)
-	if err != nil {
-		return err
-	}
-	t.reader.pendingKeyChange <- ciph
-
-	ciph, err = newPacketCipher(t.writer.dir, algs.w, kexResult)
-	if err != nil {
-		return err
-	}
-	t.writer.pendingKeyChange <- ciph
-
-	return nil
-}
-
-func (t *transport) printPacket(p []byte, write bool) {
-	if len(p) == 0 {
-		return
-	}
-	who := "server"
-	if t.isClient {
-		who = "client"
-	}
-	what := "read"
-	if write {
-		what = "write"
-	}
-
-	log.Println(what, who, p[0])
-}
-
-// Read and decrypt next packet.
-func (t *transport) readPacket() (p []byte, err error) {
-	for {
-		p, err = t.reader.readPacket(t.bufReader)
-		if err != nil {
-			break
-		}
-		if len(p) == 0 || (p[0] != msgIgnore && p[0] != msgDebug) {
-			break
-		}
-	}
-	if debugTransport {
-		t.printPacket(p, false)
-	}
-
-	return p, err
-}
-
-func (s *connectionState) readPacket(r *bufio.Reader) ([]byte, error) {
-	packet, err := s.packetCipher.readPacket(s.seqNum, r)
-	s.seqNum++
-	if err == nil && len(packet) == 0 {
-		err = errors.New("ssh: zero length packet")
-	}
-
-	if len(packet) > 0 {
-		switch packet[0] {
-		case msgNewKeys:
-			select {
-			case cipher := <-s.pendingKeyChange:
-				s.packetCipher = cipher
-			default:
-				return nil, errors.New("ssh: got bogus newkeys message")
-			}
-
-		case msgDisconnect:
-			// Transform a disconnect message into an
-			// error. Since this is lowest level at which
-			// we interpret message types, doing it here
-			// ensures that we don't have to handle it
-			// elsewhere.
-			var msg disconnectMsg
-			if err := Unmarshal(packet, &msg); err != nil {
-				return nil, err
-			}
-			return nil, &msg
-		}
-	}
-
-	// The packet may point to an internal buffer, so copy the
-	// packet out here.
-	fresh := make([]byte, len(packet))
-	copy(fresh, packet)
-
-	return fresh, err
-}
-
-func (t *transport) writePacket(packet []byte) error {
-	if debugTransport {
-		t.printPacket(packet, true)
-	}
-	return t.writer.writePacket(t.bufWriter, t.rand, packet)
-}
-
-func (s *connectionState) writePacket(w *bufio.Writer, rand io.Reader, packet []byte) error {
-	changeKeys := len(packet) > 0 && packet[0] == msgNewKeys
-
-	err := s.packetCipher.writePacket(s.seqNum, w, rand, packet)
-	if err != nil {
-		return err
-	}
-	if err = w.Flush(); err != nil {
-		return err
-	}
-	s.seqNum++
-	if changeKeys {
-		select {
-		case cipher := <-s.pendingKeyChange:
-			s.packetCipher = cipher
-		default:
-			panic("ssh: no key material for msgNewKeys")
-		}
-	}
-	return err
-}
-
-func newTransport(rwc io.ReadWriteCloser, rand io.Reader, isClient bool) *transport {
-	t := &transport{
-		bufReader: bufio.NewReader(rwc),
-		bufWriter: bufio.NewWriter(rwc),
-		rand:      rand,
-		reader: connectionState{
-			packetCipher:     &streamPacketCipher{cipher: noneCipher{}},
-			pendingKeyChange: make(chan packetCipher, 1),
-		},
-		writer: connectionState{
-			packetCipher:     &streamPacketCipher{cipher: noneCipher{}},
-			pendingKeyChange: make(chan packetCipher, 1),
-		},
-		Closer: rwc,
-	}
-	t.isClient = isClient
-
-	if isClient {
-		t.reader.dir = serverKeys
-		t.writer.dir = clientKeys
-	} else {
-		t.reader.dir = clientKeys
-		t.writer.dir = serverKeys
-	}
-
-	return t
-}
-
-type direction struct {
-	ivTag     []byte
-	keyTag    []byte
-	macKeyTag []byte
-}
-
-var (
-	serverKeys = direction{[]byte{'B'}, []byte{'D'}, []byte{'F'}}
-	clientKeys = direction{[]byte{'A'}, []byte{'C'}, []byte{'E'}}
-)
-
-// setupKeys sets the cipher and MAC keys from kex.K, kex.H and sessionId, as
-// described in RFC 4253, section 6.4. direction should either be serverKeys
-// (to setup server->client keys) or clientKeys (for client->server keys).
-func newPacketCipher(d direction, algs directionAlgorithms, kex *kexResult) (packetCipher, error) {
-	cipherMode := cipherModes[algs.Cipher]
-	macMode := macModes[algs.MAC]
-
-	iv := make([]byte, cipherMode.ivSize)
-	key := make([]byte, cipherMode.keySize)
-	macKey := make([]byte, macMode.keySize)
-
-	generateKeyMaterial(iv, d.ivTag, kex)
-	generateKeyMaterial(key, d.keyTag, kex)
-	generateKeyMaterial(macKey, d.macKeyTag, kex)
-
-	return cipherModes[algs.Cipher].create(key, iv, macKey, algs)
-}
-
-// generateKeyMaterial fills out with key material generated from tag, K, H
-// and sessionId, as specified in RFC 4253, section 7.2.
-func generateKeyMaterial(out, tag []byte, r *kexResult) {
-	var digestsSoFar []byte
-
-	h := r.Hash.New()
-	for len(out) > 0 {
-		h.Reset()
-		h.Write(r.K)
-		h.Write(r.H)
-
-		if len(digestsSoFar) == 0 {
-			h.Write(tag)
-			h.Write(r.SessionID)
-		} else {
-			h.Write(digestsSoFar)
-		}
-
-		digest := h.Sum(nil)
-		n := copy(out, digest)
-		out = out[n:]
-		if len(out) > 0 {
-			digestsSoFar = append(digestsSoFar, digest...)
-		}
-	}
-}
-
-const packageVersion = "SSH-2.0-Go"
-
-// Sends and receives a version line.  The versionLine string should
-// be US ASCII, start with "SSH-2.0-", and should not include a
-// newline. exchangeVersions returns the other side's version line.
-func exchangeVersions(rw io.ReadWriter, versionLine []byte) (them []byte, err error) {
-	// Contrary to the RFC, we do not ignore lines that don't
-	// start with "SSH-2.0-" to make the library usable with
-	// nonconforming servers.
-	for _, c := range versionLine {
-		// The spec disallows non US-ASCII chars, and
-		// specifically forbids null chars.
-		if c < 32 {
-			return nil, errors.New("ssh: junk character in version line")
-		}
-	}
-	if _, err = rw.Write(append(versionLine, '\r', '\n')); err != nil {
-		return
-	}
-
-	them, err = readVersion(rw)
-	return them, err
-}
-
-// maxVersionStringBytes is the maximum number of bytes that we'll
-// accept as a version string. RFC 4253 section 4.2 limits this at 255
-// chars
-const maxVersionStringBytes = 255
-
-// Read version string as specified by RFC 4253, section 4.2.
-func readVersion(r io.Reader) ([]byte, error) {
-	versionString := make([]byte, 0, 64)
-	var ok bool
-	var buf [1]byte
-
-	for length := 0; length < maxVersionStringBytes; length++ {
-		_, err := io.ReadFull(r, buf[:])
-		if err != nil {
-			return nil, err
-		}
-		// The RFC says that the version should be terminated with \r\n
-		// but several SSH servers actually only send a \n.
-		if buf[0] == '\n' {
-			if !bytes.HasPrefix(versionString, []byte("SSH-")) {
-				// RFC 4253 says we need to ignore all version string lines
-				// except the one containing the SSH version (provided that
-				// all the lines do not exceed 255 bytes in total).
-				versionString = versionString[:0]
-				continue
-			}
-			ok = true
-			break
-		}
-
-		// non ASCII chars are disallowed, but we are lenient,
-		// since Go doesn't use null-terminated strings.
-
-		// The RFC allows a comment after a space, however,
-		// all of it (version and comments) goes into the
-		// session hash.
-		versionString = append(versionString, buf[0])
-	}
-
-	if !ok {
-		return nil, errors.New("ssh: overflow reading version string")
-	}
-
-	// There might be a '\r' on the end which we should remove.
-	if len(versionString) > 0 && versionString[len(versionString)-1] == '\r' {
-		versionString = versionString[:len(versionString)-1]
-	}
-	return versionString, nil
-}
diff --git a/vendor/golang.org/x/crypto/ssh/transport_test.go b/vendor/golang.org/x/crypto/ssh/transport_test.go
deleted file mode 100644
index 8445e1e..0000000
--- a/vendor/golang.org/x/crypto/ssh/transport_test.go
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package ssh
-
-import (
-	"bytes"
-	"crypto/rand"
-	"encoding/binary"
-	"strings"
-	"testing"
-)
-
-func TestReadVersion(t *testing.T) {
-	longVersion := strings.Repeat("SSH-2.0-bla", 50)[:253]
-	multiLineVersion := strings.Repeat("ignored\r\n", 20) + "SSH-2.0-bla\r\n"
-	cases := map[string]string{
-		"SSH-2.0-bla\r\n":    "SSH-2.0-bla",
-		"SSH-2.0-bla\n":      "SSH-2.0-bla",
-		multiLineVersion:     "SSH-2.0-bla",
-		longVersion + "\r\n": longVersion,
-	}
-
-	for in, want := range cases {
-		result, err := readVersion(bytes.NewBufferString(in))
-		if err != nil {
-			t.Errorf("readVersion(%q): %s", in, err)
-		}
-		got := string(result)
-		if got != want {
-			t.Errorf("got %q, want %q", got, want)
-		}
-	}
-}
-
-func TestReadVersionError(t *testing.T) {
-	longVersion := strings.Repeat("SSH-2.0-bla", 50)[:253]
-	multiLineVersion := strings.Repeat("ignored\r\n", 50) + "SSH-2.0-bla\r\n"
-	cases := []string{
-		longVersion + "too-long\r\n",
-		multiLineVersion,
-	}
-	for _, in := range cases {
-		if _, err := readVersion(bytes.NewBufferString(in)); err == nil {
-			t.Errorf("readVersion(%q) should have failed", in)
-		}
-	}
-}
-
-func TestExchangeVersionsBasic(t *testing.T) {
-	v := "SSH-2.0-bla"
-	buf := bytes.NewBufferString(v + "\r\n")
-	them, err := exchangeVersions(buf, []byte("xyz"))
-	if err != nil {
-		t.Errorf("exchangeVersions: %v", err)
-	}
-
-	if want := "SSH-2.0-bla"; string(them) != want {
-		t.Errorf("got %q want %q for our version", them, want)
-	}
-}
-
-func TestExchangeVersions(t *testing.T) {
-	cases := []string{
-		"not\x000allowed",
-		"not allowed\x01\r\n",
-	}
-	for _, c := range cases {
-		buf := bytes.NewBufferString("SSH-2.0-bla\r\n")
-		if _, err := exchangeVersions(buf, []byte(c)); err == nil {
-			t.Errorf("exchangeVersions(%q): should have failed", c)
-		}
-	}
-}
-
-type closerBuffer struct {
-	bytes.Buffer
-}
-
-func (b *closerBuffer) Close() error {
-	return nil
-}
-
-func TestTransportMaxPacketWrite(t *testing.T) {
-	buf := &closerBuffer{}
-	tr := newTransport(buf, rand.Reader, true)
-	huge := make([]byte, maxPacket+1)
-	err := tr.writePacket(huge)
-	if err == nil {
-		t.Errorf("transport accepted write for a huge packet.")
-	}
-}
-
-func TestTransportMaxPacketReader(t *testing.T) {
-	var header [5]byte
-	huge := make([]byte, maxPacket+128)
-	binary.BigEndian.PutUint32(header[0:], uint32(len(huge)))
-	// padding.
-	header[4] = 0
-
-	buf := &closerBuffer{}
-	buf.Write(header[:])
-	buf.Write(huge)
-
-	tr := newTransport(buf, rand.Reader, true)
-	_, err := tr.readPacket()
-	if err == nil {
-		t.Errorf("transport succeeded reading huge packet.")
-	} else if !strings.Contains(err.Error(), "large") {
-		t.Errorf("got %q, should mention %q", err.Error(), "large")
-	}
-}
diff --git a/vendor/golang.org/x/crypto/tea/cipher.go b/vendor/golang.org/x/crypto/tea/cipher.go
deleted file mode 100644
index ce223b2..0000000
--- a/vendor/golang.org/x/crypto/tea/cipher.go
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package tea implements the TEA algorithm, as defined in Needham and
-// Wheeler's 1994 technical report, “TEA, a Tiny Encryption Algorithm”. See
-// http://www.cix.co.uk/~klockstone/tea.pdf for details.
-package tea
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-	"errors"
-)
-
-const (
-	// BlockSize is the size of a TEA block, in bytes.
-	BlockSize = 8
-
-	// KeySize is the size of a TEA key, in bytes.
-	KeySize = 16
-
-	// delta is the TEA key schedule constant.
-	delta = 0x9e3779b9
-
-	// numRounds is the standard number of rounds in TEA.
-	numRounds = 64
-)
-
-// tea is an instance of the TEA cipher with a particular key.
-type tea struct {
-	key    [16]byte
-	rounds int
-}
-
-// NewCipher returns an instance of the TEA cipher with the standard number of
-// rounds. The key argument must be 16 bytes long.
-func NewCipher(key []byte) (cipher.Block, error) {
-	return NewCipherWithRounds(key, numRounds)
-}
-
-// NewCipherWithRounds returns an instance of the TEA cipher with a given
-// number of rounds, which must be even. The key argument must be 16 bytes
-// long.
-func NewCipherWithRounds(key []byte, rounds int) (cipher.Block, error) {
-	if len(key) != 16 {
-		return nil, errors.New("tea: incorrect key size")
-	}
-
-	if rounds&1 != 0 {
-		return nil, errors.New("tea: odd number of rounds specified")
-	}
-
-	c := &tea{
-		rounds: rounds,
-	}
-	copy(c.key[:], key)
-
-	return c, nil
-}
-
-// BlockSize returns the TEA block size, which is eight bytes. It is necessary
-// to satisfy the Block interface in the package "crypto/cipher".
-func (*tea) BlockSize() int {
-	return BlockSize
-}
-
-// Encrypt encrypts the 8 byte buffer src using the key in t and stores the
-// result in dst. Note that for amounts of data larger than a block, it is not
-// safe to just call Encrypt on successive blocks; instead, use an encryption
-// mode like CBC (see crypto/cipher/cbc.go).
-func (t *tea) Encrypt(dst, src []byte) {
-	e := binary.BigEndian
-	v0, v1 := e.Uint32(src), e.Uint32(src[4:])
-	k0, k1, k2, k3 := e.Uint32(t.key[0:]), e.Uint32(t.key[4:]), e.Uint32(t.key[8:]), e.Uint32(t.key[12:])
-
-	sum := uint32(0)
-	delta := uint32(delta)
-
-	for i := 0; i < t.rounds/2; i++ {
-		sum += delta
-		v0 += ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1)
-		v1 += ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3)
-	}
-
-	e.PutUint32(dst, v0)
-	e.PutUint32(dst[4:], v1)
-}
-
-// Decrypt decrypts the 8 byte buffer src using the key in t and stores the
-// result in dst.
-func (t *tea) Decrypt(dst, src []byte) {
-	e := binary.BigEndian
-	v0, v1 := e.Uint32(src), e.Uint32(src[4:])
-	k0, k1, k2, k3 := e.Uint32(t.key[0:]), e.Uint32(t.key[4:]), e.Uint32(t.key[8:]), e.Uint32(t.key[12:])
-
-	delta := uint32(delta)
-	sum := delta * uint32(t.rounds/2) // in general, sum = delta * n
-
-	for i := 0; i < t.rounds/2; i++ {
-		v1 -= ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3)
-		v0 -= ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1)
-		sum -= delta
-	}
-
-	e.PutUint32(dst, v0)
-	e.PutUint32(dst[4:], v1)
-}
diff --git a/vendor/golang.org/x/crypto/tea/tea_test.go b/vendor/golang.org/x/crypto/tea/tea_test.go
deleted file mode 100644
index eb98d1e..0000000
--- a/vendor/golang.org/x/crypto/tea/tea_test.go
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tea
-
-import (
-	"bytes"
-	"testing"
-)
-
-// A sample test key for when we just want to initialize a cipher
-var testKey = []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF}
-
-// Test that the block size for tea is correct
-func TestBlocksize(t *testing.T) {
-	c, err := NewCipher(testKey)
-	if err != nil {
-		t.Fatalf("NewCipher returned error: %s", err)
-	}
-
-	if result := c.BlockSize(); result != BlockSize {
-		t.Errorf("cipher.BlockSize returned %d, but expected %d", result, BlockSize)
-	}
-}
-
-// Test that invalid key sizes return an error
-func TestInvalidKeySize(t *testing.T) {
-	var key [KeySize + 1]byte
-
-	if _, err := NewCipher(key[:]); err == nil {
-		t.Errorf("invalid key size %d didn't result in an error.", len(key))
-	}
-
-	if _, err := NewCipher(key[:KeySize-1]); err == nil {
-		t.Errorf("invalid key size %d didn't result in an error.", KeySize-1)
-	}
-}
-
-// Test Vectors
-type teaTest struct {
-	rounds     int
-	key        []byte
-	plaintext  []byte
-	ciphertext []byte
-}
-
-var teaTests = []teaTest{
-	// These were sourced from https://github.com/froydnj/ironclad/blob/master/testing/test-vectors/tea.testvec
-	{
-		numRounds,
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x41, 0xea, 0x3a, 0x0a, 0x94, 0xba, 0xa9, 0x40},
-	},
-	{
-		numRounds,
-		[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
-		[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
-		[]byte{0x31, 0x9b, 0xbe, 0xfb, 0x01, 0x6a, 0xbd, 0xb2},
-	},
-	{
-		16,
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0xed, 0x28, 0x5d, 0xa1, 0x45, 0x5b, 0x33, 0xc1},
-	},
-}
-
-// Test encryption
-func TestCipherEncrypt(t *testing.T) {
-	// Test encryption with standard 64 rounds
-	for i, test := range teaTests {
-		c, err := NewCipherWithRounds(test.key, test.rounds)
-		if err != nil {
-			t.Fatalf("#%d: NewCipher returned error: %s", i, err)
-		}
-
-		var ciphertext [BlockSize]byte
-		c.Encrypt(ciphertext[:], test.plaintext)
-
-		if !bytes.Equal(ciphertext[:], test.ciphertext) {
-			t.Errorf("#%d: incorrect ciphertext. Got %x, wanted %x", i, ciphertext, test.ciphertext)
-		}
-
-		var plaintext2 [BlockSize]byte
-		c.Decrypt(plaintext2[:], ciphertext[:])
-
-		if !bytes.Equal(plaintext2[:], test.plaintext) {
-			t.Errorf("#%d: incorrect plaintext. Got %x, wanted %x", i, plaintext2, test.plaintext)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/twofish/twofish.go b/vendor/golang.org/x/crypto/twofish/twofish.go
deleted file mode 100644
index 6db01fc..0000000
--- a/vendor/golang.org/x/crypto/twofish/twofish.go
+++ /dev/null
@@ -1,342 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package twofish implements Bruce Schneier's Twofish encryption algorithm.
-package twofish // import "golang.org/x/crypto/twofish"
-
-// Twofish is defined in https://www.schneier.com/paper-twofish-paper.pdf [TWOFISH]
-
-// This code is a port of the LibTom C implementation.
-// See http://libtom.org/?page=features&newsitems=5&whatfile=crypt.
-// LibTomCrypt is free for all purposes under the public domain.
-// It was heavily inspired by the go blowfish package.
-
-import "strconv"
-
-// BlockSize is the constant block size of Twofish.
-const BlockSize = 16
-
-const mdsPolynomial = 0x169 // x^8 + x^6 + x^5 + x^3 + 1, see [TWOFISH] 4.2
-const rsPolynomial = 0x14d  // x^8 + x^6 + x^3 + x^2 + 1, see [TWOFISH] 4.3
-
-// A Cipher is an instance of Twofish encryption using a particular key.
-type Cipher struct {
-	s [4][256]uint32
-	k [40]uint32
-}
-
-type KeySizeError int
-
-func (k KeySizeError) Error() string {
-	return "crypto/twofish: invalid key size " + strconv.Itoa(int(k))
-}
-
-// NewCipher creates and returns a Cipher.
-// The key argument should be the Twofish key, 16, 24 or 32 bytes.
-func NewCipher(key []byte) (*Cipher, error) {
-	keylen := len(key)
-
-	if keylen != 16 && keylen != 24 && keylen != 32 {
-		return nil, KeySizeError(keylen)
-	}
-
-	// k is the number of 64 bit words in key
-	k := keylen / 8
-
-	// Create the S[..] words
-	var S [4 * 4]byte
-	for i := 0; i < k; i++ {
-		// Computes [y0 y1 y2 y3] = rs . [x0 x1 x2 x3 x4 x5 x6 x7]
-		for j, rsRow := range rs {
-			for k, rsVal := range rsRow {
-				S[4*i+j] ^= gfMult(key[8*i+k], rsVal, rsPolynomial)
-			}
-		}
-	}
-
-	// Calculate subkeys
-	c := new(Cipher)
-	var tmp [4]byte
-	for i := byte(0); i < 20; i++ {
-		// A = h(p * 2x, Me)
-		for j := range tmp {
-			tmp[j] = 2 * i
-		}
-		A := h(tmp[:], key, 0)
-
-		// B = rolc(h(p * (2x + 1), Mo), 8)
-		for j := range tmp {
-			tmp[j] = 2*i + 1
-		}
-		B := h(tmp[:], key, 1)
-		B = rol(B, 8)
-
-		c.k[2*i] = A + B
-
-		// K[2i+1] = (A + 2B) <<< 9
-		c.k[2*i+1] = rol(2*B+A, 9)
-	}
-
-	// Calculate sboxes
-	switch k {
-	case 2:
-		for i := range c.s[0] {
-			c.s[0][i] = mdsColumnMult(sbox[1][sbox[0][sbox[0][byte(i)]^S[0]]^S[4]], 0)
-			c.s[1][i] = mdsColumnMult(sbox[0][sbox[0][sbox[1][byte(i)]^S[1]]^S[5]], 1)
-			c.s[2][i] = mdsColumnMult(sbox[1][sbox[1][sbox[0][byte(i)]^S[2]]^S[6]], 2)
-			c.s[3][i] = mdsColumnMult(sbox[0][sbox[1][sbox[1][byte(i)]^S[3]]^S[7]], 3)
-		}
-	case 3:
-		for i := range c.s[0] {
-			c.s[0][i] = mdsColumnMult(sbox[1][sbox[0][sbox[0][sbox[1][byte(i)]^S[0]]^S[4]]^S[8]], 0)
-			c.s[1][i] = mdsColumnMult(sbox[0][sbox[0][sbox[1][sbox[1][byte(i)]^S[1]]^S[5]]^S[9]], 1)
-			c.s[2][i] = mdsColumnMult(sbox[1][sbox[1][sbox[0][sbox[0][byte(i)]^S[2]]^S[6]]^S[10]], 2)
-			c.s[3][i] = mdsColumnMult(sbox[0][sbox[1][sbox[1][sbox[0][byte(i)]^S[3]]^S[7]]^S[11]], 3)
-		}
-	default:
-		for i := range c.s[0] {
-			c.s[0][i] = mdsColumnMult(sbox[1][sbox[0][sbox[0][sbox[1][sbox[1][byte(i)]^S[0]]^S[4]]^S[8]]^S[12]], 0)
-			c.s[1][i] = mdsColumnMult(sbox[0][sbox[0][sbox[1][sbox[1][sbox[0][byte(i)]^S[1]]^S[5]]^S[9]]^S[13]], 1)
-			c.s[2][i] = mdsColumnMult(sbox[1][sbox[1][sbox[0][sbox[0][sbox[0][byte(i)]^S[2]]^S[6]]^S[10]]^S[14]], 2)
-			c.s[3][i] = mdsColumnMult(sbox[0][sbox[1][sbox[1][sbox[0][sbox[1][byte(i)]^S[3]]^S[7]]^S[11]]^S[15]], 3)
-		}
-	}
-
-	return c, nil
-}
-
-// BlockSize returns the Twofish block size, 16 bytes.
-func (c *Cipher) BlockSize() int { return BlockSize }
-
-// store32l stores src in dst in little-endian form.
-func store32l(dst []byte, src uint32) {
-	dst[0] = byte(src)
-	dst[1] = byte(src >> 8)
-	dst[2] = byte(src >> 16)
-	dst[3] = byte(src >> 24)
-	return
-}
-
-// load32l reads a little-endian uint32 from src.
-func load32l(src []byte) uint32 {
-	return uint32(src[0]) | uint32(src[1])<<8 | uint32(src[2])<<16 | uint32(src[3])<<24
-}
-
-// rol returns x after a left circular rotation of y bits.
-func rol(x, y uint32) uint32 {
-	return (x << (y & 31)) | (x >> (32 - (y & 31)))
-}
-
-// ror returns x after a right circular rotation of y bits.
-func ror(x, y uint32) uint32 {
-	return (x >> (y & 31)) | (x << (32 - (y & 31)))
-}
-
-// The RS matrix. See [TWOFISH] 4.3
-var rs = [4][8]byte{
-	{0x01, 0xA4, 0x55, 0x87, 0x5A, 0x58, 0xDB, 0x9E},
-	{0xA4, 0x56, 0x82, 0xF3, 0x1E, 0xC6, 0x68, 0xE5},
-	{0x02, 0xA1, 0xFC, 0xC1, 0x47, 0xAE, 0x3D, 0x19},
-	{0xA4, 0x55, 0x87, 0x5A, 0x58, 0xDB, 0x9E, 0x03},
-}
-
-// sbox tables
-var sbox = [2][256]byte{
-	{
-		0xa9, 0x67, 0xb3, 0xe8, 0x04, 0xfd, 0xa3, 0x76, 0x9a, 0x92, 0x80, 0x78, 0xe4, 0xdd, 0xd1, 0x38,
-		0x0d, 0xc6, 0x35, 0x98, 0x18, 0xf7, 0xec, 0x6c, 0x43, 0x75, 0x37, 0x26, 0xfa, 0x13, 0x94, 0x48,
-		0xf2, 0xd0, 0x8b, 0x30, 0x84, 0x54, 0xdf, 0x23, 0x19, 0x5b, 0x3d, 0x59, 0xf3, 0xae, 0xa2, 0x82,
-		0x63, 0x01, 0x83, 0x2e, 0xd9, 0x51, 0x9b, 0x7c, 0xa6, 0xeb, 0xa5, 0xbe, 0x16, 0x0c, 0xe3, 0x61,
-		0xc0, 0x8c, 0x3a, 0xf5, 0x73, 0x2c, 0x25, 0x0b, 0xbb, 0x4e, 0x89, 0x6b, 0x53, 0x6a, 0xb4, 0xf1,
-		0xe1, 0xe6, 0xbd, 0x45, 0xe2, 0xf4, 0xb6, 0x66, 0xcc, 0x95, 0x03, 0x56, 0xd4, 0x1c, 0x1e, 0xd7,
-		0xfb, 0xc3, 0x8e, 0xb5, 0xe9, 0xcf, 0xbf, 0xba, 0xea, 0x77, 0x39, 0xaf, 0x33, 0xc9, 0x62, 0x71,
-		0x81, 0x79, 0x09, 0xad, 0x24, 0xcd, 0xf9, 0xd8, 0xe5, 0xc5, 0xb9, 0x4d, 0x44, 0x08, 0x86, 0xe7,
-		0xa1, 0x1d, 0xaa, 0xed, 0x06, 0x70, 0xb2, 0xd2, 0x41, 0x7b, 0xa0, 0x11, 0x31, 0xc2, 0x27, 0x90,
-		0x20, 0xf6, 0x60, 0xff, 0x96, 0x5c, 0xb1, 0xab, 0x9e, 0x9c, 0x52, 0x1b, 0x5f, 0x93, 0x0a, 0xef,
-		0x91, 0x85, 0x49, 0xee, 0x2d, 0x4f, 0x8f, 0x3b, 0x47, 0x87, 0x6d, 0x46, 0xd6, 0x3e, 0x69, 0x64,
-		0x2a, 0xce, 0xcb, 0x2f, 0xfc, 0x97, 0x05, 0x7a, 0xac, 0x7f, 0xd5, 0x1a, 0x4b, 0x0e, 0xa7, 0x5a,
-		0x28, 0x14, 0x3f, 0x29, 0x88, 0x3c, 0x4c, 0x02, 0xb8, 0xda, 0xb0, 0x17, 0x55, 0x1f, 0x8a, 0x7d,
-		0x57, 0xc7, 0x8d, 0x74, 0xb7, 0xc4, 0x9f, 0x72, 0x7e, 0x15, 0x22, 0x12, 0x58, 0x07, 0x99, 0x34,
-		0x6e, 0x50, 0xde, 0x68, 0x65, 0xbc, 0xdb, 0xf8, 0xc8, 0xa8, 0x2b, 0x40, 0xdc, 0xfe, 0x32, 0xa4,
-		0xca, 0x10, 0x21, 0xf0, 0xd3, 0x5d, 0x0f, 0x00, 0x6f, 0x9d, 0x36, 0x42, 0x4a, 0x5e, 0xc1, 0xe0,
-	},
-	{
-		0x75, 0xf3, 0xc6, 0xf4, 0xdb, 0x7b, 0xfb, 0xc8, 0x4a, 0xd3, 0xe6, 0x6b, 0x45, 0x7d, 0xe8, 0x4b,
-		0xd6, 0x32, 0xd8, 0xfd, 0x37, 0x71, 0xf1, 0xe1, 0x30, 0x0f, 0xf8, 0x1b, 0x87, 0xfa, 0x06, 0x3f,
-		0x5e, 0xba, 0xae, 0x5b, 0x8a, 0x00, 0xbc, 0x9d, 0x6d, 0xc1, 0xb1, 0x0e, 0x80, 0x5d, 0xd2, 0xd5,
-		0xa0, 0x84, 0x07, 0x14, 0xb5, 0x90, 0x2c, 0xa3, 0xb2, 0x73, 0x4c, 0x54, 0x92, 0x74, 0x36, 0x51,
-		0x38, 0xb0, 0xbd, 0x5a, 0xfc, 0x60, 0x62, 0x96, 0x6c, 0x42, 0xf7, 0x10, 0x7c, 0x28, 0x27, 0x8c,
-		0x13, 0x95, 0x9c, 0xc7, 0x24, 0x46, 0x3b, 0x70, 0xca, 0xe3, 0x85, 0xcb, 0x11, 0xd0, 0x93, 0xb8,
-		0xa6, 0x83, 0x20, 0xff, 0x9f, 0x77, 0xc3, 0xcc, 0x03, 0x6f, 0x08, 0xbf, 0x40, 0xe7, 0x2b, 0xe2,
-		0x79, 0x0c, 0xaa, 0x82, 0x41, 0x3a, 0xea, 0xb9, 0xe4, 0x9a, 0xa4, 0x97, 0x7e, 0xda, 0x7a, 0x17,
-		0x66, 0x94, 0xa1, 0x1d, 0x3d, 0xf0, 0xde, 0xb3, 0x0b, 0x72, 0xa7, 0x1c, 0xef, 0xd1, 0x53, 0x3e,
-		0x8f, 0x33, 0x26, 0x5f, 0xec, 0x76, 0x2a, 0x49, 0x81, 0x88, 0xee, 0x21, 0xc4, 0x1a, 0xeb, 0xd9,
-		0xc5, 0x39, 0x99, 0xcd, 0xad, 0x31, 0x8b, 0x01, 0x18, 0x23, 0xdd, 0x1f, 0x4e, 0x2d, 0xf9, 0x48,
-		0x4f, 0xf2, 0x65, 0x8e, 0x78, 0x5c, 0x58, 0x19, 0x8d, 0xe5, 0x98, 0x57, 0x67, 0x7f, 0x05, 0x64,
-		0xaf, 0x63, 0xb6, 0xfe, 0xf5, 0xb7, 0x3c, 0xa5, 0xce, 0xe9, 0x68, 0x44, 0xe0, 0x4d, 0x43, 0x69,
-		0x29, 0x2e, 0xac, 0x15, 0x59, 0xa8, 0x0a, 0x9e, 0x6e, 0x47, 0xdf, 0x34, 0x35, 0x6a, 0xcf, 0xdc,
-		0x22, 0xc9, 0xc0, 0x9b, 0x89, 0xd4, 0xed, 0xab, 0x12, 0xa2, 0x0d, 0x52, 0xbb, 0x02, 0x2f, 0xa9,
-		0xd7, 0x61, 0x1e, 0xb4, 0x50, 0x04, 0xf6, 0xc2, 0x16, 0x25, 0x86, 0x56, 0x55, 0x09, 0xbe, 0x91,
-	},
-}
-
-// gfMult returns a·b in GF(2^8)/p
-func gfMult(a, b byte, p uint32) byte {
-	B := [2]uint32{0, uint32(b)}
-	P := [2]uint32{0, p}
-	var result uint32
-
-	// branchless GF multiplier
-	for i := 0; i < 7; i++ {
-		result ^= B[a&1]
-		a >>= 1
-		B[1] = P[B[1]>>7] ^ (B[1] << 1)
-	}
-	result ^= B[a&1]
-	return byte(result)
-}
-
-// mdsColumnMult calculates y{col} where [y0 y1 y2 y3] = MDS · [x0]
-func mdsColumnMult(in byte, col int) uint32 {
-	mul01 := in
-	mul5B := gfMult(in, 0x5B, mdsPolynomial)
-	mulEF := gfMult(in, 0xEF, mdsPolynomial)
-
-	switch col {
-	case 0:
-		return uint32(mul01) | uint32(mul5B)<<8 | uint32(mulEF)<<16 | uint32(mulEF)<<24
-	case 1:
-		return uint32(mulEF) | uint32(mulEF)<<8 | uint32(mul5B)<<16 | uint32(mul01)<<24
-	case 2:
-		return uint32(mul5B) | uint32(mulEF)<<8 | uint32(mul01)<<16 | uint32(mulEF)<<24
-	case 3:
-		return uint32(mul5B) | uint32(mul01)<<8 | uint32(mulEF)<<16 | uint32(mul5B)<<24
-	}
-
-	panic("unreachable")
-}
-
-// h implements the S-box generation function. See [TWOFISH] 4.3.5
-func h(in, key []byte, offset int) uint32 {
-	var y [4]byte
-	for x := range y {
-		y[x] = in[x]
-	}
-	switch len(key) / 8 {
-	case 4:
-		y[0] = sbox[1][y[0]] ^ key[4*(6+offset)+0]
-		y[1] = sbox[0][y[1]] ^ key[4*(6+offset)+1]
-		y[2] = sbox[0][y[2]] ^ key[4*(6+offset)+2]
-		y[3] = sbox[1][y[3]] ^ key[4*(6+offset)+3]
-		fallthrough
-	case 3:
-		y[0] = sbox[1][y[0]] ^ key[4*(4+offset)+0]
-		y[1] = sbox[1][y[1]] ^ key[4*(4+offset)+1]
-		y[2] = sbox[0][y[2]] ^ key[4*(4+offset)+2]
-		y[3] = sbox[0][y[3]] ^ key[4*(4+offset)+3]
-		fallthrough
-	case 2:
-		y[0] = sbox[1][sbox[0][sbox[0][y[0]]^key[4*(2+offset)+0]]^key[4*(0+offset)+0]]
-		y[1] = sbox[0][sbox[0][sbox[1][y[1]]^key[4*(2+offset)+1]]^key[4*(0+offset)+1]]
-		y[2] = sbox[1][sbox[1][sbox[0][y[2]]^key[4*(2+offset)+2]]^key[4*(0+offset)+2]]
-		y[3] = sbox[0][sbox[1][sbox[1][y[3]]^key[4*(2+offset)+3]]^key[4*(0+offset)+3]]
-	}
-	// [y0 y1 y2 y3] = MDS . [x0 x1 x2 x3]
-	var mdsMult uint32
-	for i := range y {
-		mdsMult ^= mdsColumnMult(y[i], i)
-	}
-	return mdsMult
-}
-
-// Encrypt encrypts a 16-byte block from src to dst, which may overlap.
-// Note that for amounts of data larger than a block,
-// it is not safe to just call Encrypt on successive blocks;
-// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go).
-func (c *Cipher) Encrypt(dst, src []byte) {
-	S1 := c.s[0]
-	S2 := c.s[1]
-	S3 := c.s[2]
-	S4 := c.s[3]
-
-	// Load input
-	ia := load32l(src[0:4])
-	ib := load32l(src[4:8])
-	ic := load32l(src[8:12])
-	id := load32l(src[12:16])
-
-	// Pre-whitening
-	ia ^= c.k[0]
-	ib ^= c.k[1]
-	ic ^= c.k[2]
-	id ^= c.k[3]
-
-	for i := 0; i < 8; i++ {
-		k := c.k[8+i*4 : 12+i*4]
-		t2 := S2[byte(ib)] ^ S3[byte(ib>>8)] ^ S4[byte(ib>>16)] ^ S1[byte(ib>>24)]
-		t1 := S1[byte(ia)] ^ S2[byte(ia>>8)] ^ S3[byte(ia>>16)] ^ S4[byte(ia>>24)] + t2
-		ic = ror(ic^(t1+k[0]), 1)
-		id = rol(id, 1) ^ (t2 + t1 + k[1])
-
-		t2 = S2[byte(id)] ^ S3[byte(id>>8)] ^ S4[byte(id>>16)] ^ S1[byte(id>>24)]
-		t1 = S1[byte(ic)] ^ S2[byte(ic>>8)] ^ S3[byte(ic>>16)] ^ S4[byte(ic>>24)] + t2
-		ia = ror(ia^(t1+k[2]), 1)
-		ib = rol(ib, 1) ^ (t2 + t1 + k[3])
-	}
-
-	// Output with "undo last swap"
-	ta := ic ^ c.k[4]
-	tb := id ^ c.k[5]
-	tc := ia ^ c.k[6]
-	td := ib ^ c.k[7]
-
-	store32l(dst[0:4], ta)
-	store32l(dst[4:8], tb)
-	store32l(dst[8:12], tc)
-	store32l(dst[12:16], td)
-}
-
-// Decrypt decrypts a 16-byte block from src to dst, which may overlap.
-func (c *Cipher) Decrypt(dst, src []byte) {
-	S1 := c.s[0]
-	S2 := c.s[1]
-	S3 := c.s[2]
-	S4 := c.s[3]
-
-	// Load input
-	ta := load32l(src[0:4])
-	tb := load32l(src[4:8])
-	tc := load32l(src[8:12])
-	td := load32l(src[12:16])
-
-	// Undo undo final swap
-	ia := tc ^ c.k[6]
-	ib := td ^ c.k[7]
-	ic := ta ^ c.k[4]
-	id := tb ^ c.k[5]
-
-	for i := 8; i > 0; i-- {
-		k := c.k[4+i*4 : 8+i*4]
-		t2 := S2[byte(id)] ^ S3[byte(id>>8)] ^ S4[byte(id>>16)] ^ S1[byte(id>>24)]
-		t1 := S1[byte(ic)] ^ S2[byte(ic>>8)] ^ S3[byte(ic>>16)] ^ S4[byte(ic>>24)] + t2
-		ia = rol(ia, 1) ^ (t1 + k[2])
-		ib = ror(ib^(t2+t1+k[3]), 1)
-
-		t2 = S2[byte(ib)] ^ S3[byte(ib>>8)] ^ S4[byte(ib>>16)] ^ S1[byte(ib>>24)]
-		t1 = S1[byte(ia)] ^ S2[byte(ia>>8)] ^ S3[byte(ia>>16)] ^ S4[byte(ia>>24)] + t2
-		ic = rol(ic, 1) ^ (t1 + k[0])
-		id = ror(id^(t2+t1+k[1]), 1)
-	}
-
-	// Undo pre-whitening
-	ia ^= c.k[0]
-	ib ^= c.k[1]
-	ic ^= c.k[2]
-	id ^= c.k[3]
-
-	store32l(dst[0:4], ia)
-	store32l(dst[4:8], ib)
-	store32l(dst[8:12], ic)
-	store32l(dst[12:16], id)
-}
diff --git a/vendor/golang.org/x/crypto/twofish/twofish_test.go b/vendor/golang.org/x/crypto/twofish/twofish_test.go
deleted file mode 100644
index ed6a1a8..0000000
--- a/vendor/golang.org/x/crypto/twofish/twofish_test.go
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright 2011 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package twofish
-
-import (
-	"bytes"
-	"testing"
-)
-
-var qbox = [2][4][16]byte{
-	{
-		{0x8, 0x1, 0x7, 0xD, 0x6, 0xF, 0x3, 0x2, 0x0, 0xB, 0x5, 0x9, 0xE, 0xC, 0xA, 0x4},
-		{0xE, 0xC, 0xB, 0x8, 0x1, 0x2, 0x3, 0x5, 0xF, 0x4, 0xA, 0x6, 0x7, 0x0, 0x9, 0xD},
-		{0xB, 0xA, 0x5, 0xE, 0x6, 0xD, 0x9, 0x0, 0xC, 0x8, 0xF, 0x3, 0x2, 0x4, 0x7, 0x1},
-		{0xD, 0x7, 0xF, 0x4, 0x1, 0x2, 0x6, 0xE, 0x9, 0xB, 0x3, 0x0, 0x8, 0x5, 0xC, 0xA},
-	},
-	{
-		{0x2, 0x8, 0xB, 0xD, 0xF, 0x7, 0x6, 0xE, 0x3, 0x1, 0x9, 0x4, 0x0, 0xA, 0xC, 0x5},
-		{0x1, 0xE, 0x2, 0xB, 0x4, 0xC, 0x3, 0x7, 0x6, 0xD, 0xA, 0x5, 0xF, 0x9, 0x0, 0x8},
-		{0x4, 0xC, 0x7, 0x5, 0x1, 0x6, 0x9, 0xA, 0x0, 0xE, 0xD, 0x8, 0x2, 0xB, 0x3, 0xF},
-		{0xB, 0x9, 0x5, 0x1, 0xC, 0x3, 0xD, 0xE, 0x6, 0x4, 0x7, 0xF, 0x2, 0x0, 0x8, 0xA},
-	},
-}
-
-// genSbox generates the variable sbox
-func genSbox(qi int, x byte) byte {
-	a0, b0 := x/16, x%16
-	for i := 0; i < 2; i++ {
-		a1 := a0 ^ b0
-		b1 := (a0 ^ ((b0 << 3) | (b0 >> 1)) ^ (a0 << 3)) & 15
-		a0 = qbox[qi][2*i][a1]
-		b0 = qbox[qi][2*i+1][b1]
-	}
-	return (b0 << 4) + a0
-}
-
-func TestSbox(t *testing.T) {
-	for n := range sbox {
-		for m := range sbox[n] {
-			if genSbox(n, byte(m)) != sbox[n][m] {
-				t.Errorf("#%d|%d: sbox value = %d want %d", n, m, sbox[n][m], genSbox(n, byte(m)))
-			}
-		}
-	}
-}
-
-var testVectors = []struct {
-	key []byte
-	dec []byte
-	enc []byte
-}{
-	// These tests are extracted from LibTom
-	{
-		[]byte{0x9F, 0x58, 0x9F, 0x5C, 0xF6, 0x12, 0x2C, 0x32, 0xB6, 0xBF, 0xEC, 0x2F, 0x2A, 0xE8, 0xC3, 0x5A},
-		[]byte{0xD4, 0x91, 0xDB, 0x16, 0xE7, 0xB1, 0xC3, 0x9E, 0x86, 0xCB, 0x08, 0x6B, 0x78, 0x9F, 0x54, 0x19},
-		[]byte{0x01, 0x9F, 0x98, 0x09, 0xDE, 0x17, 0x11, 0x85, 0x8F, 0xAA, 0xC3, 0xA3, 0xBA, 0x20, 0xFB, 0xC3},
-	},
-	{
-		[]byte{0x88, 0xB2, 0xB2, 0x70, 0x6B, 0x10, 0x5E, 0x36, 0xB4, 0x46, 0xBB, 0x6D, 0x73, 0x1A, 0x1E, 0x88,
-			0xEF, 0xA7, 0x1F, 0x78, 0x89, 0x65, 0xBD, 0x44},
-		[]byte{0x39, 0xDA, 0x69, 0xD6, 0xBA, 0x49, 0x97, 0xD5, 0x85, 0xB6, 0xDC, 0x07, 0x3C, 0xA3, 0x41, 0xB2},
-		[]byte{0x18, 0x2B, 0x02, 0xD8, 0x14, 0x97, 0xEA, 0x45, 0xF9, 0xDA, 0xAC, 0xDC, 0x29, 0x19, 0x3A, 0x65},
-	},
-	{
-		[]byte{0xD4, 0x3B, 0xB7, 0x55, 0x6E, 0xA3, 0x2E, 0x46, 0xF2, 0xA2, 0x82, 0xB7, 0xD4, 0x5B, 0x4E, 0x0D,
-			0x57, 0xFF, 0x73, 0x9D, 0x4D, 0xC9, 0x2C, 0x1B, 0xD7, 0xFC, 0x01, 0x70, 0x0C, 0xC8, 0x21, 0x6F},
-		[]byte{0x90, 0xAF, 0xE9, 0x1B, 0xB2, 0x88, 0x54, 0x4F, 0x2C, 0x32, 0xDC, 0x23, 0x9B, 0x26, 0x35, 0xE6},
-		[]byte{0x6C, 0xB4, 0x56, 0x1C, 0x40, 0xBF, 0x0A, 0x97, 0x05, 0x93, 0x1C, 0xB6, 0xD4, 0x08, 0xE7, 0xFA},
-	},
-	// These tests are derived from https://www.schneier.com/code/ecb_ival.txt
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x9F, 0x58, 0x9F, 0x5C, 0xF6, 0x12, 0x2C, 0x32, 0xB6, 0xBF, 0xEC, 0x2F, 0x2A, 0xE8, 0xC3, 0x5A},
-	},
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
-			0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
-		},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0xCF, 0xD1, 0xD2, 0xE5, 0xA9, 0xBE, 0x9C, 0xDF, 0x50, 0x1F, 0x13, 0xB8, 0x92, 0xBD, 0x22, 0x48},
-	},
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0xFE, 0xDC, 0xBA, 0x98, 0x76, 0x54, 0x32, 0x10,
-			0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF,
-		},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x37, 0x52, 0x7B, 0xE0, 0x05, 0x23, 0x34, 0xB8, 0x9F, 0x0C, 0xFC, 0xCA, 0xE8, 0x7C, 0xFA, 0x20},
-	},
-}
-
-func TestCipher(t *testing.T) {
-	for n, tt := range testVectors {
-		// Test if the plaintext (dec) is encrypts to the given
-		// ciphertext (enc) using the given key. Test also if enc can
-		// be decrypted again into dec.
-		c, err := NewCipher(tt.key)
-		if err != nil {
-			t.Errorf("#%d: NewCipher: %v", n, err)
-			return
-		}
-
-		buf := make([]byte, 16)
-		c.Encrypt(buf, tt.dec)
-		if !bytes.Equal(buf, tt.enc) {
-			t.Errorf("#%d: encrypt = %x want %x", n, buf, tt.enc)
-		}
-		c.Decrypt(buf, tt.enc)
-		if !bytes.Equal(buf, tt.dec) {
-			t.Errorf("#%d: decrypt = %x want %x", n, buf, tt.dec)
-		}
-
-		// Test that 16 zero bytes, encrypted 1000 times then decrypted
-		// 1000 times results in zero bytes again.
-		zero := make([]byte, 16)
-		buf = make([]byte, 16)
-		for i := 0; i < 1000; i++ {
-			c.Encrypt(buf, buf)
-		}
-		for i := 0; i < 1000; i++ {
-			c.Decrypt(buf, buf)
-		}
-		if !bytes.Equal(buf, zero) {
-			t.Errorf("#%d: encrypt/decrypt 1000: have %x want %x", n, buf, zero)
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/xtea/block.go b/vendor/golang.org/x/crypto/xtea/block.go
deleted file mode 100644
index fcb4e4d..0000000
--- a/vendor/golang.org/x/crypto/xtea/block.go
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-/*
-	Implementation adapted from Needham and Wheeler's paper:
-	http://www.cix.co.uk/~klockstone/xtea.pdf
-
-	A precalculated look up table is used during encryption/decryption for values that are based purely on the key.
-*/
-
-package xtea
-
-// XTEA is based on 64 rounds.
-const numRounds = 64
-
-// blockToUint32 reads an 8 byte slice into two uint32s.
-// The block is treated as big endian.
-func blockToUint32(src []byte) (uint32, uint32) {
-	r0 := uint32(src[0])<<24 | uint32(src[1])<<16 | uint32(src[2])<<8 | uint32(src[3])
-	r1 := uint32(src[4])<<24 | uint32(src[5])<<16 | uint32(src[6])<<8 | uint32(src[7])
-	return r0, r1
-}
-
-// uint32ToBlock writes two uint32s into an 8 byte data block.
-// Values are written as big endian.
-func uint32ToBlock(v0, v1 uint32, dst []byte) {
-	dst[0] = byte(v0 >> 24)
-	dst[1] = byte(v0 >> 16)
-	dst[2] = byte(v0 >> 8)
-	dst[3] = byte(v0)
-	dst[4] = byte(v1 >> 24)
-	dst[5] = byte(v1 >> 16)
-	dst[6] = byte(v1 >> 8)
-	dst[7] = byte(v1 >> 0)
-}
-
-// encryptBlock encrypts a single 8 byte block using XTEA.
-func encryptBlock(c *Cipher, dst, src []byte) {
-	v0, v1 := blockToUint32(src)
-
-	// Two rounds of XTEA applied per loop
-	for i := 0; i < numRounds; {
-		v0 += ((v1<<4 ^ v1>>5) + v1) ^ c.table[i]
-		i++
-		v1 += ((v0<<4 ^ v0>>5) + v0) ^ c.table[i]
-		i++
-	}
-
-	uint32ToBlock(v0, v1, dst)
-}
-
-// decryptBlock decrypts a single 8 byte block using XTEA.
-func decryptBlock(c *Cipher, dst, src []byte) {
-	v0, v1 := blockToUint32(src)
-
-	// Two rounds of XTEA applied per loop
-	for i := numRounds; i > 0; {
-		i--
-		v1 -= ((v0<<4 ^ v0>>5) + v0) ^ c.table[i]
-		i--
-		v0 -= ((v1<<4 ^ v1>>5) + v1) ^ c.table[i]
-	}
-
-	uint32ToBlock(v0, v1, dst)
-}
diff --git a/vendor/golang.org/x/crypto/xtea/cipher.go b/vendor/golang.org/x/crypto/xtea/cipher.go
deleted file mode 100644
index 1661cbe..0000000
--- a/vendor/golang.org/x/crypto/xtea/cipher.go
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package xtea implements XTEA encryption, as defined in Needham and Wheeler's
-// 1997 technical report, "Tea extensions."
-package xtea // import "golang.org/x/crypto/xtea"
-
-// For details, see http://www.cix.co.uk/~klockstone/xtea.pdf
-
-import "strconv"
-
-// The XTEA block size in bytes.
-const BlockSize = 8
-
-// A Cipher is an instance of an XTEA cipher using a particular key.
-type Cipher struct {
-	// table contains a series of precalculated values that are used each round.
-	table [64]uint32
-}
-
-type KeySizeError int
-
-func (k KeySizeError) Error() string {
-	return "crypto/xtea: invalid key size " + strconv.Itoa(int(k))
-}
-
-// NewCipher creates and returns a new Cipher.
-// The key argument should be the XTEA key.
-// XTEA only supports 128 bit (16 byte) keys.
-func NewCipher(key []byte) (*Cipher, error) {
-	k := len(key)
-	switch k {
-	default:
-		return nil, KeySizeError(k)
-	case 16:
-		break
-	}
-
-	c := new(Cipher)
-	initCipher(c, key)
-
-	return c, nil
-}
-
-// BlockSize returns the XTEA block size, 8 bytes.
-// It is necessary to satisfy the Block interface in the
-// package "crypto/cipher".
-func (c *Cipher) BlockSize() int { return BlockSize }
-
-// Encrypt encrypts the 8 byte buffer src using the key and stores the result in dst.
-// Note that for amounts of data larger than a block,
-// it is not safe to just call Encrypt on successive blocks;
-// instead, use an encryption mode like CBC (see crypto/cipher/cbc.go).
-func (c *Cipher) Encrypt(dst, src []byte) { encryptBlock(c, dst, src) }
-
-// Decrypt decrypts the 8 byte buffer src using the key and stores the result in dst.
-func (c *Cipher) Decrypt(dst, src []byte) { decryptBlock(c, dst, src) }
-
-// initCipher initializes the cipher context by creating a look up table
-// of precalculated values that are based on the key.
-func initCipher(c *Cipher, key []byte) {
-	// Load the key into four uint32s
-	var k [4]uint32
-	for i := 0; i < len(k); i++ {
-		j := i << 2 // Multiply by 4
-		k[i] = uint32(key[j+0])<<24 | uint32(key[j+1])<<16 | uint32(key[j+2])<<8 | uint32(key[j+3])
-	}
-
-	// Precalculate the table
-	const delta = 0x9E3779B9
-	var sum uint32
-
-	// Two rounds of XTEA applied per loop
-	for i := 0; i < numRounds; {
-		c.table[i] = sum + k[sum&3]
-		i++
-		sum += delta
-		c.table[i] = sum + k[(sum>>11)&3]
-		i++
-	}
-}
diff --git a/vendor/golang.org/x/crypto/xtea/xtea_test.go b/vendor/golang.org/x/crypto/xtea/xtea_test.go
deleted file mode 100644
index be711bf..0000000
--- a/vendor/golang.org/x/crypto/xtea/xtea_test.go
+++ /dev/null
@@ -1,229 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package xtea
-
-import (
-	"testing"
-)
-
-// A sample test key for when we just want to initialize a cipher
-var testKey = []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF}
-
-// Test that the block size for XTEA is correct
-func TestBlocksize(t *testing.T) {
-	if BlockSize != 8 {
-		t.Errorf("BlockSize constant - expected 8, got %d", BlockSize)
-		return
-	}
-
-	c, err := NewCipher(testKey)
-	if err != nil {
-		t.Errorf("NewCipher(%d bytes) = %s", len(testKey), err)
-		return
-	}
-
-	result := c.BlockSize()
-	if result != 8 {
-		t.Errorf("BlockSize function - expected 8, got %d", result)
-		return
-	}
-}
-
-// A series of test values to confirm that the Cipher.table array was initialized correctly
-var testTable = []uint32{
-	0x00112233, 0x6B1568B8, 0xE28CE030, 0xC5089E2D, 0xC5089E2D, 0x1EFBD3A2, 0xA7845C2A, 0x78EF0917,
-	0x78EF0917, 0x172682D0, 0x5B6AC714, 0x822AC955, 0x3DE68511, 0xDC1DFECA, 0x2062430E, 0x3611343F,
-	0xF1CCEFFB, 0x900469B4, 0xD448ADF8, 0x2E3BE36D, 0xB6C46BF5, 0x994029F2, 0x994029F2, 0xF3335F67,
-	0x6AAAD6DF, 0x4D2694DC, 0x4D2694DC, 0xEB5E0E95, 0x2FA252D9, 0x4551440A, 0x121E10D6, 0xB0558A8F,
-	0xE388BDC3, 0x0A48C004, 0xC6047BC0, 0x643BF579, 0xA88039BD, 0x02736F32, 0x8AFBF7BA, 0x5C66A4A7,
-	0x5C66A4A7, 0xC76AEB2C, 0x3EE262A4, 0x215E20A1, 0x215E20A1, 0x7B515616, 0x03D9DE9E, 0x1988CFCF,
-	0xD5448B8B, 0x737C0544, 0xB7C04988, 0xDE804BC9, 0x9A3C0785, 0x3873813E, 0x7CB7C582, 0xD6AAFAF7,
-	0x4E22726F, 0x309E306C, 0x309E306C, 0x8A9165E1, 0x1319EE69, 0xF595AC66, 0xF595AC66, 0x4F88E1DB,
-}
-
-// Test that the cipher context is initialized correctly
-func TestCipherInit(t *testing.T) {
-	c, err := NewCipher(testKey)
-	if err != nil {
-		t.Errorf("NewCipher(%d bytes) = %s", len(testKey), err)
-		return
-	}
-
-	for i := 0; i < len(c.table); i++ {
-		if c.table[i] != testTable[i] {
-			t.Errorf("NewCipher() failed to initialize Cipher.table[%d] correctly. Expected %08X, got %08X", i, testTable[i], c.table[i])
-			break
-		}
-	}
-}
-
-// Test that invalid key sizes return an error
-func TestInvalidKeySize(t *testing.T) {
-	// Test a long key
-	key := []byte{
-		0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF,
-		0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF,
-	}
-
-	_, err := NewCipher(key)
-	if err == nil {
-		t.Errorf("Invalid key size %d didn't result in an error.", len(key))
-	}
-
-	// Test a short key
-	key = []byte{0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77}
-
-	_, err = NewCipher(key)
-	if err == nil {
-		t.Errorf("Invalid key size %d didn't result in an error.", len(key))
-	}
-}
-
-// Test that we can correctly decode some bytes we have encoded
-func TestEncodeDecode(t *testing.T) {
-	original := []byte{0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF}
-	input := original
-	output := make([]byte, BlockSize)
-
-	c, err := NewCipher(testKey)
-	if err != nil {
-		t.Errorf("NewCipher(%d bytes) = %s", len(testKey), err)
-		return
-	}
-
-	// Encrypt the input block
-	c.Encrypt(output, input)
-
-	// Check that the output does not match the input
-	differs := false
-	for i := 0; i < len(input); i++ {
-		if output[i] != input[i] {
-			differs = true
-			break
-		}
-	}
-	if differs == false {
-		t.Error("Cipher.Encrypt: Failed to encrypt the input block.")
-		return
-	}
-
-	// Decrypt the block we just encrypted
-	input = output
-	output = make([]byte, BlockSize)
-	c.Decrypt(output, input)
-
-	// Check that the output from decrypt matches our initial input
-	for i := 0; i < len(input); i++ {
-		if output[i] != original[i] {
-			t.Errorf("Decrypted byte %d differed. Expected %02X, got %02X\n", i, original[i], output[i])
-			return
-		}
-	}
-}
-
-// Test Vectors
-type CryptTest struct {
-	key        []byte
-	plainText  []byte
-	cipherText []byte
-}
-
-var CryptTests = []CryptTest{
-	// These were sourced from http://www.freemedialibrary.com/index.php/XTEA_test_vectors
-	{
-		[]byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f},
-		[]byte{0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48},
-		[]byte{0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5},
-	},
-	{
-		[]byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f},
-		[]byte{0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41},
-		[]byte{0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8},
-	},
-	{
-		[]byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f},
-		[]byte{0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f},
-		[]byte{0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41},
-	},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48},
-		[]byte{0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5},
-	},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41},
-		[]byte{0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d},
-	},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55},
-		[]byte{0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41},
-	},
-
-	// These vectors are from http://wiki.secondlife.com/wiki/XTEA_Strong_Encryption_Implementation#Bouncy_Castle_C.23_API
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0xDE, 0xE9, 0xD4, 0xD8, 0xF7, 0x13, 0x1E, 0xD9},
-	},
-	{
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
-		[]byte{0x06, 0x5C, 0x1B, 0x89, 0x75, 0xC6, 0xA8, 0x16},
-	},
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A},
-		[]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
-		[]byte{0x1F, 0xF9, 0xA0, 0x26, 0x1A, 0xC6, 0x42, 0x64},
-	},
-	{
-		[]byte{0x01, 0x23, 0x45, 0x67, 0x12, 0x34, 0x56, 0x78, 0x23, 0x45, 0x67, 0x89, 0x34, 0x56, 0x78, 0x9A},
-		[]byte{0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08},
-		[]byte{0x8C, 0x67, 0x15, 0x5B, 0x2E, 0xF9, 0x1E, 0xAD},
-	},
-}
-
-// Test encryption
-func TestCipherEncrypt(t *testing.T) {
-	for i, tt := range CryptTests {
-		c, err := NewCipher(tt.key)
-		if err != nil {
-			t.Errorf("NewCipher(%d bytes), vector %d = %s", len(tt.key), i, err)
-			continue
-		}
-
-		out := make([]byte, len(tt.plainText))
-		c.Encrypt(out, tt.plainText)
-
-		for j := 0; j < len(out); j++ {
-			if out[j] != tt.cipherText[j] {
-				t.Errorf("Cipher.Encrypt %d: out[%d] = %02X, expected %02X", i, j, out[j], tt.cipherText[j])
-				break
-			}
-		}
-	}
-}
-
-// Test decryption
-func TestCipherDecrypt(t *testing.T) {
-	for i, tt := range CryptTests {
-		c, err := NewCipher(tt.key)
-		if err != nil {
-			t.Errorf("NewCipher(%d bytes), vector %d = %s", len(tt.key), i, err)
-			continue
-		}
-
-		out := make([]byte, len(tt.cipherText))
-		c.Decrypt(out, tt.cipherText)
-
-		for j := 0; j < len(out); j++ {
-			if out[j] != tt.plainText[j] {
-				t.Errorf("Cipher.Decrypt %d: out[%d] = %02X, expected %02X", i, j, out[j], tt.plainText[j])
-				break
-			}
-		}
-	}
-}
diff --git a/vendor/golang.org/x/crypto/xts/xts.go b/vendor/golang.org/x/crypto/xts/xts.go
deleted file mode 100644
index 9654e1f..0000000
--- a/vendor/golang.org/x/crypto/xts/xts.go
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package xts implements the XTS cipher mode as specified in IEEE P1619/D16.
-//
-// XTS mode is typically used for disk encryption, which presents a number of
-// novel problems that make more common modes inapplicable. The disk is
-// conceptually an array of sectors and we must be able to encrypt and decrypt
-// a sector in isolation. However, an attacker must not be able to transpose
-// two sectors of plaintext by transposing their ciphertext.
-//
-// XTS wraps a block cipher with Rogaway's XEX mode in order to build a
-// tweakable block cipher. This allows each sector to have a unique tweak and
-// effectively create a unique key for each sector.
-//
-// XTS does not provide any authentication. An attacker can manipulate the
-// ciphertext and randomise a block (16 bytes) of the plaintext.
-//
-// (Note: this package does not implement ciphertext-stealing so sectors must
-// be a multiple of 16 bytes.)
-package xts // import "golang.org/x/crypto/xts"
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-	"errors"
-
-	"golang.org/x/crypto/internal/subtle"
-)
-
-// Cipher contains an expanded key structure. It doesn't contain mutable state
-// and therefore can be used concurrently.
-type Cipher struct {
-	k1, k2 cipher.Block
-}
-
-// blockSize is the block size that the underlying cipher must have. XTS is
-// only defined for 16-byte ciphers.
-const blockSize = 16
-
-// NewCipher creates a Cipher given a function for creating the underlying
-// block cipher (which must have a block size of 16 bytes). The key must be
-// twice the length of the underlying cipher's key.
-func NewCipher(cipherFunc func([]byte) (cipher.Block, error), key []byte) (c *Cipher, err error) {
-	c = new(Cipher)
-	if c.k1, err = cipherFunc(key[:len(key)/2]); err != nil {
-		return
-	}
-	c.k2, err = cipherFunc(key[len(key)/2:])
-
-	if c.k1.BlockSize() != blockSize {
-		err = errors.New("xts: cipher does not have a block size of 16")
-	}
-
-	return
-}
-
-// Encrypt encrypts a sector of plaintext and puts the result into ciphertext.
-// Plaintext and ciphertext must overlap entirely or not at all.
-// Sectors must be a multiple of 16 bytes and less than 2²⁴ bytes.
-func (c *Cipher) Encrypt(ciphertext, plaintext []byte, sectorNum uint64) {
-	if len(ciphertext) < len(plaintext) {
-		panic("xts: ciphertext is smaller than plaintext")
-	}
-	if len(plaintext)%blockSize != 0 {
-		panic("xts: plaintext is not a multiple of the block size")
-	}
-	if subtle.InexactOverlap(ciphertext[:len(plaintext)], plaintext) {
-		panic("xts: invalid buffer overlap")
-	}
-
-	var tweak [blockSize]byte
-	binary.LittleEndian.PutUint64(tweak[:8], sectorNum)
-
-	c.k2.Encrypt(tweak[:], tweak[:])
-
-	for len(plaintext) > 0 {
-		for j := range tweak {
-			ciphertext[j] = plaintext[j] ^ tweak[j]
-		}
-		c.k1.Encrypt(ciphertext, ciphertext)
-		for j := range tweak {
-			ciphertext[j] ^= tweak[j]
-		}
-		plaintext = plaintext[blockSize:]
-		ciphertext = ciphertext[blockSize:]
-
-		mul2(&tweak)
-	}
-}
-
-// Decrypt decrypts a sector of ciphertext and puts the result into plaintext.
-// Plaintext and ciphertext must overlap entirely or not at all.
-// Sectors must be a multiple of 16 bytes and less than 2²⁴ bytes.
-func (c *Cipher) Decrypt(plaintext, ciphertext []byte, sectorNum uint64) {
-	if len(plaintext) < len(ciphertext) {
-		panic("xts: plaintext is smaller than ciphertext")
-	}
-	if len(ciphertext)%blockSize != 0 {
-		panic("xts: ciphertext is not a multiple of the block size")
-	}
-	if subtle.InexactOverlap(plaintext[:len(ciphertext)], ciphertext) {
-		panic("xts: invalid buffer overlap")
-	}
-
-	var tweak [blockSize]byte
-	binary.LittleEndian.PutUint64(tweak[:8], sectorNum)
-
-	c.k2.Encrypt(tweak[:], tweak[:])
-
-	for len(ciphertext) > 0 {
-		for j := range tweak {
-			plaintext[j] = ciphertext[j] ^ tweak[j]
-		}
-		c.k1.Decrypt(plaintext, plaintext)
-		for j := range tweak {
-			plaintext[j] ^= tweak[j]
-		}
-		plaintext = plaintext[blockSize:]
-		ciphertext = ciphertext[blockSize:]
-
-		mul2(&tweak)
-	}
-}
-
-// mul2 multiplies tweak by 2 in GF(2¹²⁸) with an irreducible polynomial of
-// x¹²⁸ + x⁷ + x² + x + 1.
-func mul2(tweak *[blockSize]byte) {
-	var carryIn byte
-	for j := range tweak {
-		carryOut := tweak[j] >> 7
-		tweak[j] = (tweak[j] << 1) + carryIn
-		carryIn = carryOut
-	}
-	if carryIn != 0 {
-		// If we have a carry bit then we need to subtract a multiple
-		// of the irreducible polynomial (x¹²⁸ + x⁷ + x² + x + 1).
-		// By dropping the carry bit, we're subtracting the x^128 term
-		// so all that remains is to subtract x⁷ + x² + x + 1.
-		// Subtraction (and addition) in this representation is just
-		// XOR.
-		tweak[0] ^= 1<<7 | 1<<2 | 1<<1 | 1
-	}
-}
diff --git a/vendor/golang.org/x/crypto/xts/xts_test.go b/vendor/golang.org/x/crypto/xts/xts_test.go
deleted file mode 100644
index 96d3b6c..0000000
--- a/vendor/golang.org/x/crypto/xts/xts_test.go
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package xts
-
-import (
-	"bytes"
-	"crypto/aes"
-	"encoding/hex"
-	"testing"
-)
-
-// These test vectors have been taken from IEEE P1619/D16, Annex B.
-var xtsTestVectors = []struct {
-	key        string
-	sector     uint64
-	plaintext  string
-	ciphertext string
-}{
-	{
-		"0000000000000000000000000000000000000000000000000000000000000000",
-		0,
-		"0000000000000000000000000000000000000000000000000000000000000000",
-		"917cf69ebd68b2ec9b9fe9a3eadda692cd43d2f59598ed858c02c2652fbf922e",
-	}, {
-		"1111111111111111111111111111111122222222222222222222222222222222",
-		0x3333333333,
-		"4444444444444444444444444444444444444444444444444444444444444444",
-		"c454185e6a16936e39334038acef838bfb186fff7480adc4289382ecd6d394f0",
-	}, {
-		"fffefdfcfbfaf9f8f7f6f5f4f3f2f1f022222222222222222222222222222222",
-		0x3333333333,
-		"4444444444444444444444444444444444444444444444444444444444444444",
-		"af85336b597afc1a900b2eb21ec949d292df4c047e0b21532186a5971a227a89",
-	}, {
-		"2718281828459045235360287471352631415926535897932384626433832795",
-		0,
-		"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",
-		"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",
-	}, {
-		"2718281828459045235360287471352631415926535897932384626433832795",
-		1,
-		"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",
-		"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",
-	}, {
-		"27182818284590452353602874713526624977572470936999595749669676273141592653589793238462643383279502884197169399375105820974944592",
-		0xff,
-		"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",
-		"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",
-	},
-}
-
-func fromHex(s string) []byte {
-	ret, err := hex.DecodeString(s)
-	if err != nil {
-		panic("xts: invalid hex in test")
-	}
-	return ret
-}
-
-func TestXTS(t *testing.T) {
-	for i, test := range xtsTestVectors {
-		c, err := NewCipher(aes.NewCipher, fromHex(test.key))
-		if err != nil {
-			t.Errorf("#%d: failed to create cipher: %s", i, err)
-			continue
-		}
-		plaintext := fromHex(test.plaintext)
-		ciphertext := make([]byte, len(plaintext))
-		c.Encrypt(ciphertext, plaintext, test.sector)
-
-		expectedCiphertext := fromHex(test.ciphertext)
-		if !bytes.Equal(ciphertext, expectedCiphertext) {
-			t.Errorf("#%d: encrypted failed, got: %x, want: %x", i, ciphertext, expectedCiphertext)
-			continue
-		}
-
-		decrypted := make([]byte, len(ciphertext))
-		c.Decrypt(decrypted, ciphertext, test.sector)
-		if !bytes.Equal(decrypted, plaintext) {
-			t.Errorf("#%d: decryption failed, got: %x, want: %x", i, decrypted, plaintext)
-		}
-	}
-}
-
-func TestShorterCiphertext(t *testing.T) {
-	// Decrypt used to panic if the input was shorter than the output. See
-	// https://go-review.googlesource.com/c/39954/
-	c, err := NewCipher(aes.NewCipher, make([]byte, 32))
-	if err != nil {
-		t.Fatalf("NewCipher failed: %s", err)
-	}
-
-	plaintext := make([]byte, 32)
-	encrypted := make([]byte, 48)
-	decrypted := make([]byte, 48)
-
-	c.Encrypt(encrypted, plaintext, 0)
-	c.Decrypt(decrypted, encrypted[:len(plaintext)], 0)
-
-	if !bytes.Equal(plaintext, decrypted[:len(plaintext)]) {
-		t.Errorf("En/Decryption is not inverse")
-	}
-}