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jeremybenn |
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// CBC AES test vectors.
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// See U.S. National Institute of Standards and Technology (NIST)
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// Special Publication 800-38A, ``Recommendation for Block Cipher
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// Modes of Operation,'' 2001 Edition, pp. 24-29.
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package cipher
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import (
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"bytes"
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"crypto/aes"
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"testing"
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)
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var cbcAESTests = []struct {
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name string
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key []byte
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iv []byte
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in []byte
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out []byte
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}{
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// NIST SP 800-38A pp 27-29
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{
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"CBC-AES128",
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commonKey128,
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commonIV,
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commonInput,
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[]byte{
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0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
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0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
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0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
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0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7,
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},
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},
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{
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"CBC-AES192",
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commonKey192,
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commonIV,
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commonInput,
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[]byte{
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0x4f, 0x02, 0x1d, 0xb2, 0x43, 0xbc, 0x63, 0x3d, 0x71, 0x78, 0x18, 0x3a, 0x9f, 0xa0, 0x71, 0xe8,
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0xb4, 0xd9, 0xad, 0xa9, 0xad, 0x7d, 0xed, 0xf4, 0xe5, 0xe7, 0x38, 0x76, 0x3f, 0x69, 0x14, 0x5a,
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0x57, 0x1b, 0x24, 0x20, 0x12, 0xfb, 0x7a, 0xe0, 0x7f, 0xa9, 0xba, 0xac, 0x3d, 0xf1, 0x02, 0xe0,
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0x08, 0xb0, 0xe2, 0x79, 0x88, 0x59, 0x88, 0x81, 0xd9, 0x20, 0xa9, 0xe6, 0x4f, 0x56, 0x15, 0xcd,
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},
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},
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{
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"CBC-AES256",
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commonKey256,
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commonIV,
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commonInput,
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[]byte{
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0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba, 0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6,
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0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d, 0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d,
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0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf, 0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61,
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0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc, 0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b,
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},
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},
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}
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func TestCBC_AES(t *testing.T) {
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for _, tt := range cbcAESTests {
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test := tt.name
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c, err := aes.NewCipher(tt.key)
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if err != nil {
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t.Errorf("%s: NewCipher(%d bytes) = %s", test, len(tt.key), err)
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continue
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}
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encrypter := NewCBCEncrypter(c, tt.iv)
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d := make([]byte, len(tt.in))
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encrypter.CryptBlocks(d, tt.in)
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if !bytes.Equal(tt.out, d) {
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t.Errorf("%s: CBCEncrypter\nhave %x\nwant %x", test, d, tt.out)
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}
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decrypter := NewCBCDecrypter(c, tt.iv)
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p := make([]byte, len(d))
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decrypter.CryptBlocks(p, d)
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if !bytes.Equal(tt.in, p) {
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t.Errorf("%s: CBCDecrypter\nhave %x\nwant %x", test, d, tt.in)
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}
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}
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}
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