crypto: switch to golang.org/x/crypto

code.google.com/p/go.crypto is deprecated and will cause
problems in future versions of Go.

Godeps/Godeps.json

@@ -15,21 +15,6 @@
 			"Comment": "null-12",
 			"Rev": "7dda39b2e7d5e265014674c5af696ba4186679e9"
 		},
-		{
-			"ImportPath": "code.google.com/p/go.crypto/pbkdf2",
-			"Comment": "null-236",
-			"Rev": "69e2a90ed92d03812364aeb947b7068dc42e561e"
-		},
-		{
-			"ImportPath": "code.google.com/p/go.crypto/ripemd160",
-			"Comment": "null-236",
-			"Rev": "69e2a90ed92d03812364aeb947b7068dc42e561e"
-		},
-		{
-			"ImportPath": "code.google.com/p/go.crypto/scrypt",
-			"Comment": "null-236",
-			"Rev": "69e2a90ed92d03812364aeb947b7068dc42e561e"
-		},
 		{
 			"ImportPath": "code.google.com/p/snappy-go/snappy",
 			"Comment": "null-15",
@@ -100,6 +85,14 @@
 			"ImportPath": "golang.org/x/crypto/pbkdf2",
 			"Rev": "4ed45ec682102c643324fae5dff8dab085b6c300"
 		},
+		{
+			"ImportPath": "golang.org/x/crypto/ripemd160",
+			"Rev": "4ed45ec682102c643324fae5dff8dab085b6c300"
+		},
+		{
+			"ImportPath": "golang.org/x/crypto/scrypt",
+			"Rev": "4ed45ec682102c643324fae5dff8dab085b6c300"
+		},
 		{
 			"ImportPath": "golang.org/x/net/websocket",
 			"Rev": "59b0df9b1f7abda5aab0495ee54f408daf182ce7"

Godeps/_workspace/src/code.google.com/p/go.crypto/pbkdf2/pbkdf2.go

-// 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 (
-	"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]
-}

Godeps/_workspace/src/code.google.com/p/go.crypto/pbkdf2/pbkdf2_test.go

-// 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)
-}

crypto/crypto.go

@@ -16,12 +16,12 @@ import (
 	"errors"
 
 	"code.google.com/p/go-uuid/uuid"
-	"code.google.com/p/go.crypto/pbkdf2"
-	"code.google.com/p/go.crypto/ripemd160"
 	"github.com/ethereum/go-ethereum/crypto/ecies"
 	"github.com/ethereum/go-ethereum/crypto/secp256k1"
 	"github.com/ethereum/go-ethereum/crypto/sha3"
 	"github.com/ethereum/go-ethereum/ethutil"
+	"golang.org/x/crypto/pbkdf2"
+	"golang.org/x/crypto/ripemd160"
 )
 
 func init() {

crypto/key_store_passphrase.go

@@ -20,6 +20,7 @@
  * @date 2015
  *
  */
+
 /*
 
 This key store behaves as KeyStorePlain with the difference that
@@ -64,17 +65,18 @@ package crypto
 
 import (
 	"bytes"
-	"code.google.com/p/go-uuid/uuid"
-	"code.google.com/p/go.crypto/scrypt"
 	"crypto/aes"
 	"crypto/cipher"
 	"encoding/hex"
 	"encoding/json"
 	"errors"
-	"github.com/ethereum/go-ethereum/crypto/randentropy"
 	"io"
 	"os"
 	"path"
+
+	"code.google.com/p/go-uuid/uuid"
+	"github.com/ethereum/go-ethereum/crypto/randentropy"
+	"golang.org/x/crypto/scrypt"
 )
 
 const (