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_test 12 13 import ( 14 "bytes" 15 "crypto/aes" 16 "crypto/cipher" 17 "testing" 18 ) 19 20 var cbcAESTests = []struct { 21 name string 22 key []byte 23 iv []byte 24 in []byte 25 out []byte 26 }{ 27 // NIST SP 800-38A pp 27-29 28 { 29 "CBC-AES128", 30 commonKey128, 31 commonIV, 32 commonInput, 33 []byte{ 34 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9, 0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d, 35 0x50, 0x86, 0xcb, 0x9b, 0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76, 0x78, 0xb2, 36 0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b, 0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16, 37 0x3f, 0xf1, 0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30, 0x75, 0x86, 0xe1, 0xa7, 38 }, 39 }, 40 { 41 "CBC-AES192", 42 commonKey192, 43 commonIV, 44 commonInput, 45 []byte{ 46 0x4f, 0x02, 0x1d, 0xb2, 0x43, 0xbc, 0x63, 0x3d, 0x71, 0x78, 0x18, 0x3a, 0x9f, 0xa0, 0x71, 0xe8, 47 0xb4, 0xd9, 0xad, 0xa9, 0xad, 0x7d, 0xed, 0xf4, 0xe5, 0xe7, 0x38, 0x76, 0x3f, 0x69, 0x14, 0x5a, 48 0x57, 0x1b, 0x24, 0x20, 0x12, 0xfb, 0x7a, 0xe0, 0x7f, 0xa9, 0xba, 0xac, 0x3d, 0xf1, 0x02, 0xe0, 49 0x08, 0xb0, 0xe2, 0x79, 0x88, 0x59, 0x88, 0x81, 0xd9, 0x20, 0xa9, 0xe6, 0x4f, 0x56, 0x15, 0xcd, 50 }, 51 }, 52 { 53 "CBC-AES256", 54 commonKey256, 55 commonIV, 56 commonInput, 57 []byte{ 58 0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba, 0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6, 59 0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d, 0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d, 60 0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf, 0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61, 61 0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc, 0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b, 62 }, 63 }, 64 } 65 66 func TestCBCEncrypterAES(t *testing.T) { 67 for _, test := range cbcAESTests { 68 c, err := aes.NewCipher(test.key) 69 if err != nil { 70 t.Errorf("%s: NewCipher(%d bytes) = %s", test.name, len(test.key), err) 71 continue 72 } 73 74 encrypter := cipher.NewCBCEncrypter(c, test.iv) 75 76 data := make([]byte, len(test.in)) 77 copy(data, test.in) 78 79 encrypter.CryptBlocks(data, data) 80 if !bytes.Equal(test.out, data) { 81 t.Errorf("%s: CBCEncrypter\nhave %x\nwant %x", test.name, data, test.out) 82 } 83 } 84 } 85 86 func TestCBCDecrypterAES(t *testing.T) { 87 for _, test := range cbcAESTests { 88 c, err := aes.NewCipher(test.key) 89 if err != nil { 90 t.Errorf("%s: NewCipher(%d bytes) = %s", test.name, len(test.key), err) 91 continue 92 } 93 94 decrypter := cipher.NewCBCDecrypter(c, test.iv) 95 96 data := make([]byte, len(test.out)) 97 copy(data, test.out) 98 99 decrypter.CryptBlocks(data, data) 100 if !bytes.Equal(test.in, data) { 101 t.Errorf("%s: CBCDecrypter\nhave %x\nwant %x", test.name, data, test.in) 102 } 103 } 104 } 105
