// Copyright 2009 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.
// CFB AES test vectors.
// See U.S. National Institute of Standards and Technology (NIST)
// Special Publication 800-38A, ``Recommendation for Block Cipher
// Modes of Operation,'' 2001 Edition, pp. 29-52.
package block
import (
"bytes";
"crypto/aes";
"io";
"testing";
)
type cfbTest struct {
name string;
s int;
key []byte;
iv []byte;
in []byte;
out []byte;
}
var cfbAESTests = []cfbTest{
cfbTest{
"CFB1-AES128",
1,
commonKey128,
commonIV,
[]byte{
0<<7 | 1<<6 | 1<<5 | 0<<4 | 1<<3 | 0<<2 | 1<<1,
1<<7 | 1<<6 | 0<<5 | 0<<4 | 0<<3 | 0<<2 | 0<<1,
},
[]byte{
0<<7 | 1<<6 | 1<<5 | 0<<4 | 1<<3 | 0<<2 | 0<<1,
1<<7 | 0<<6 | 1<<5 | 1<<4 | 0<<3 | 0<<2 | 1<<1,
},
},
cfbTest{
"CFB1-AES192",
1,
commonKey192,
commonIV,
[]byte{
0<<7 | 1<<6 | 1<<5 | 0<<4 | 1<<3 | 0<<2 | 1<<1,
1<<7 | 1<<6 | 0<<5 | 0<<4 | 0<<3 | 0<<2 | 0<<1,
},
[]byte{
1<<7 | 0<<6 | 0<<5 | 1<<4 | 0<<3 | 0<<2 | 1<<1,
0<<7 | 1<<6 | 0<<5 | 1<<4 | 1<<3 | 0<<2 | 0<<1,
},
},
cfbTest{
"CFB1-AES256",
1,
commonKey256,
commonIV,
[]byte{
0<<7 | 1<<6 | 1<<5 | 0<<4 | 1<<3 | 0<<2 | 1<<1,
1<<7 | 1<<6 | 0<<5 | 0<<4 | 0<<3 | 0<<2 | 0<<1,
},
[]byte{
1<<7 | 0<<6 | 0<<5 | 1<<4 | 0<<3 | 0<<2 | 0<<1,
0<<7 | 0<<6 | 1<<5 | 0<<4 | 1<<3 | 0<<2 | 0<<1,
},
},
cfbTest{
"CFB8-AES128",
8,
commonKey128,
commonIV,
[]byte{
0x6b,
0xc1,
0xbe,
0xe2,
0x2e,
0x40,
0x9f,
0x96,
0xe9,
0x3d,
0x7e,
0x11,
0x73,
0x93,
0x17,
0x2a,
0xae,
0x2d,
},
[]byte{
0x3b,
0x79,
0x42,
0x4c,
0x9c,
0x0d,
0xd4,
0x36,
0xba,
0xce,
0x9e,
0x0e,
0xd4,
0x58,
0x6a,
0x4f,
0x32,
0xb9,
},
},
cfbTest{
"CFB8-AES192",
8,
commonKey192,
commonIV,
[]byte{
0x6b,
0xc1,
0xbe,
0xe2,
0x2e,
0x40,
0x9f,
0x96,
0xe9,
0x3d,
0x7e,
0x11,
0x73,
0x93,
0x17,
0x2a,
0xae,
0x2d,
},
[]byte{
0xcd,
0xa2,
0x52,
0x1e,
0xf0,
0xa9,
0x05,
0xca,
0x44,
0xcd,
0x05,
0x7c,
0xbf,
0x0d,
0x47,
0xa0,
0x67,
0x8a,
},
},
cfbTest{
"CFB8-AES256",
8,
commonKey256,
commonIV,
[]byte{
0x6b,
0xc1,
0xbe,
0xe2,
0x2e,
0x40,
0x9f,
0x96,
0xe9,
0x3d,
0x7e,
0x11,
0x73,
0x93,
0x17,
0x2a,
0xae,
0x2d,
},
[]byte{
0xdc,
0x1f,
0x1a,
0x85,
0x20,
0xa6,
0x4d,
0xb5,
0x5f,
0xcc,
0x8a,
0xc5,
0x54,
0x84,
0x4e,
0x88,
0x97,
0x00,
},
},
cfbTest{
"CFB128-AES128",
128,
commonKey128,
commonIV,
[]byte{
0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10,
},
[]byte{
0x3b, 0x3f, 0xd9, 0x2e, 0xb7, 0x2d, 0xad, 0x20, 0x33, 0x34, 0x49, 0xf8, 0xe8, 0x3c, 0xfb, 0x4a,
0xc8, 0xa6, 0x45, 0x37, 0xa0, 0xb3, 0xa9, 0x3f, 0xcd, 0xe3, 0xcd, 0xad, 0x9f, 0x1c, 0xe5, 0x8b,
0x26, 0x75, 0x1f, 0x67, 0xa3, 0xcb, 0xb1, 0x40, 0xb1, 0x80, 0x8c, 0xf1, 0x87, 0xa4, 0xf4, 0xdf,
0xc0, 0x4b, 0x05, 0x35, 0x7c, 0x5d, 0x1c, 0x0e, 0xea, 0xc4, 0xc6, 0x6f, 0x9f, 0xf7, 0xf2, 0xe6,
},
},
cfbTest{
"CFB128-AES192",
128,
commonKey192,
commonIV,
[]byte{
0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10,
},
[]byte{
0xcd, 0xc8, 0x0d, 0x6f, 0xdd, 0xf1, 0x8c, 0xab, 0x34, 0xc2, 0x59, 0x09, 0xc9, 0x9a, 0x41, 0x74,
0x67, 0xce, 0x7f, 0x7f, 0x81, 0x17, 0x36, 0x21, 0x96, 0x1a, 0x2b, 0x70, 0x17, 0x1d, 0x3d, 0x7a,
0x2e, 0x1e, 0x8a, 0x1d, 0xd5, 0x9b, 0x88, 0xb1, 0xc8, 0xe6, 0x0f, 0xed, 0x1e, 0xfa, 0xc4, 0xc9,
0xc0, 0x5f, 0x9f, 0x9c, 0xa9, 0x83, 0x4f, 0xa0, 0x42, 0xae, 0x8f, 0xba, 0x58, 0x4b, 0x09, 0xff,
},
},
cfbTest{
"CFB128-AES256",
128,
commonKey256,
commonIV,
[]byte{
0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a,
0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51,
0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef,
0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10,
},
[]byte{
0xdc, 0x7e, 0x84, 0xbf, 0xda, 0x79, 0x16, 0x4b, 0x7e, 0xcd, 0x84, 0x86, 0x98, 0x5d, 0x38, 0x60,
0x39, 0xff, 0xed, 0x14, 0x3b, 0x28, 0xb1, 0xc8, 0x32, 0x11, 0x3c, 0x63, 0x31, 0xe5, 0x40, 0x7b,
0xdf, 0x10, 0x13, 0x24, 0x15, 0xe5, 0x4b, 0x92, 0xa1, 0x3e, 0xd0, 0xa8, 0x26, 0x7a, 0xe2, 0xf9,
0x75, 0xa3, 0x85, 0x74, 0x1a, 0xb9, 0xce, 0xf8, 0x20, 0x31, 0x62, 0x3d, 0x55, 0xb1, 0xe4, 0x71,
},
},
}
func TestCFB_AES(t *testing.T) {
for _, tt := range cfbAESTests {
test := tt.name;
if tt.s == 1 {
// 1-bit CFB not implemented
continue
}
c, err := aes.NewCipher(tt.key);
if err != nil {
t.Errorf("%s: NewCipher(%d bytes) = %s", test, len(tt.key), err);
continue;
}
var crypt bytes.Buffer;
w := NewCFBEncrypter(c, tt.s, tt.iv, &crypt);
var r io.Reader = bytes.NewBuffer(tt.in);
n, err := io.Copy(w, r);
if n != int64(len(tt.in)) || err != nil {
t.Errorf("%s: CFBEncrypter io.Copy = %d, %v want %d, nil", test, n, err, len(tt.in))
} else if d := crypt.Bytes(); !same(tt.out, d) {
t.Errorf("%s: CFBEncrypter\nhave %x\nwant %x", test, d, tt.out)
}
var plain bytes.Buffer;
r = NewCFBDecrypter(c, tt.s, tt.iv, bytes.NewBuffer(tt.out));
w = &plain;
n, err = io.Copy(w, r);
if n != int64(len(tt.out)) || err != nil {
t.Errorf("%s: CFBDecrypter io.Copy = %d, %v want %d, nil", test, n, err, len(tt.out))
} else if d := plain.Bytes(); !same(tt.in, d) {
t.Errorf("%s: CFBDecrypter\nhave %x\nwant %x", test, d, tt.in)
}
if t.Failed() {
break
}
}
}
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