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// 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)
}
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