libgo/go/crypto/cipher/cbc_aes_test.go

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // CBC AES test vectors.
   6
   7 // See U.S. National Institute of Standards and Technology (NIST)
   8 // Special Publication 800-38A, ``Recommendation for Block Cipher
   9 // Modes of Operation,'' 2001 Edition, pp. 24-29.
  10
  11 package cipher
  12
  13 import (
  14         "bytes"
  15         "crypto/aes"
  16         "testing"
  17 )
  18
  19 var cbcAESTests = []struct {
  20         name string
  21         key  []byte
  22         iv   []byte
  23         in   []byte
  24         out  []byte
  25 }{
  26         // NIST SP 800-38A pp 27-29
  27         {
  28                 "CBC-AES128",
  29                 commonKey128,
  30                 commonIV,
  31                 commonInput,
  32                 []byte{
  33                         0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d,
  34                         0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2,
  35                         0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16,
  36                         0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7,
  37                 },
  38         },
  39         {
  40                 "CBC-AES192",
  41                 commonKey192,
  42                 commonIV,
  43                 commonInput,
  44                 []byte{
  45                         0x4f, 0x02, 0x1d, 0xb2, 0x43, 0xbc, 0x63, 0x3d, 0x71, 0x78, 0x18, 0x3a, 0x9f, 0xa0, 0x71, 0xe8,
  46                         0xb4, 0xd9, 0xad, 0xa9, 0xad, 0x7d, 0xed, 0xf4, 0xe5, 0xe7, 0x38, 0x76, 0x3f, 0x69, 0x14, 0x5a,
  47                         0x57, 0x1b, 0x24, 0x20, 0x12, 0xfb, 0x7a, 0xe0, 0x7f, 0xa9, 0xba, 0xac, 0x3d, 0xf1, 0x02, 0xe0,
  48                         0x08, 0xb0, 0xe2, 0x79, 0x88, 0x59, 0x88, 0x81, 0xd9, 0x20, 0xa9, 0xe6, 0x4f, 0x56, 0x15, 0xcd,
  49                 },
  50         },
  51         {
  52                 "CBC-AES256",
  53                 commonKey256,
  54                 commonIV,
  55                 commonInput,
  56                 []byte{
  57                         0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba, 0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6,
  58                         0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d, 0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d,
  59                         0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf, 0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61,
  60                         0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc, 0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b,
  61                 },
  62         },
  63 }
  64
  65 func TestCBC_AES(t *testing.T) {
  66         for _, tt := range cbcAESTests {
  67                 test := tt.name
  68
  69                 c, err := aes.NewCipher(tt.key)
  70                 if err != nil {
  71                         t.Errorf("%s: NewCipher(%d bytes) = %s", test, len(tt.key), err)
  72                         continue
  73                 }
  74
  75                 encrypter := NewCBCEncrypter(c, tt.iv)
  76                 d := make([]byte, len(tt.in))
  77                 encrypter.CryptBlocks(d, tt.in)
  78                 if !bytes.Equal(tt.out, d) {
  79                         t.Errorf("%s: CBCEncrypter\nhave %x\nwant %x", test, d, tt.out)
  80                 }
  81
  82                 decrypter := NewCBCDecrypter(c, tt.iv)
  83                 p := make([]byte, len(d))
  84                 decrypter.CryptBlocks(p, d)
  85                 if !bytes.Equal(tt.in, p) {
  86                         t.Errorf("%s: CBCDecrypter\nhave %x\nwant %x", test, d, tt.in)
  87                 }
  88         }
  89 }