1 files changed, 0 insertions, 81 deletions
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
-}