1 files changed, 0 insertions, 206 deletions
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)
-}