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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis |
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2 * |
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3 * LibTomCrypt is a library that provides various cryptographic |
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4 * algorithms in a highly modular and flexible manner. |
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5 * |
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6 * The library is free for all purposes without any express |
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7 * guarantee it works. |
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8 * |
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9 * Tom St Denis, [email protected], http://libtomcrypt.org |
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10 */ |
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11 /* OMAC1 Support by Tom St Denis (for 64 and 128 bit block ciphers only) */ |
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12 #include "mycrypt.h" |
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13 |
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14 #ifdef OMAC |
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15 |
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16 int omac_test(void) |
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17 { |
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18 #if !defined(LTC_TEST) |
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19 return CRYPT_NOP; |
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20 #else |
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21 static const struct { |
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22 int keylen, msglen; |
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23 unsigned char key[16], msg[64], tag[16]; |
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24 } tests[] = { |
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25 { 16, 0, |
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26 { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, |
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27 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, |
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28 { 0x00 }, |
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29 { 0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28, |
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30 0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46 } |
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31 }, |
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32 { 16, 16, |
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33 { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, |
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34 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, |
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35 { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, |
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36 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a }, |
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37 { 0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44, |
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38 0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c } |
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39 }, |
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40 { 16, 40, |
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41 { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, |
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42 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, |
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43 { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, |
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44 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, |
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45 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, |
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46 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, |
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47 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11 }, |
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48 { 0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30, |
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49 0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27 } |
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50 }, |
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51 { 16, 64, |
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52 { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, |
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53 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c }, |
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54 { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, |
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55 0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a, |
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56 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03, 0xac, 0x9c, |
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57 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, |
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58 0x30, 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, |
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59 0xe5, 0xfb, 0xc1, 0x19, 0x1a, 0x0a, 0x52, 0xef, |
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60 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b, 0x17, |
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61 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 }, |
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62 { 0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92, |
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63 0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe } |
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64 } |
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65 |
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66 }; |
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67 unsigned char out[16]; |
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68 int x, err, idx; |
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69 unsigned long len; |
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70 |
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71 |
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72 /* AES can be under rijndael or aes... try to find it */ |
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73 if ((idx = find_cipher("aes")) == -1) { |
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74 if ((idx = find_cipher("rijndael")) == -1) { |
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75 return CRYPT_NOP; |
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76 } |
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77 } |
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78 |
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79 for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) { |
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80 len = sizeof(out); |
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81 if ((err = omac_memory(idx, tests[x].key, tests[x].keylen, tests[x].msg, tests[x].msglen, out, &len)) != CRYPT_OK) { |
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82 return err; |
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83 } |
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84 |
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85 if (memcmp(out, tests[x].tag, 16) != 0) { |
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86 #if 0 |
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87 int y; |
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88 printf("\n\nTag: "); |
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89 for (y = 0; y < 16; y++) printf("%02x", out[y]); printf("\n\n"); |
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90 #endif |
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91 return CRYPT_FAIL_TESTVECTOR; |
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92 } |
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93 } |
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94 return CRYPT_OK; |
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95 #endif |
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96 } |
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97 |
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98 #endif |
