/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org *//* OMAC1 Support by Tom St Denis (for 64 and 128 bit block ciphers only) */#include "mycrypt.h"#ifdef OMACint omac_test(void){#if !defined(LTC_TEST)    return CRYPT_NOP;#else    static const struct {         int keylen, msglen;        unsigned char key[16], msg[64], tag[16];    } tests[] = {    { 16, 0,      { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,         0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },      { 0x00 },      { 0xbb, 0x1d, 0x69, 0x29, 0xe9, 0x59, 0x37, 0x28,        0x7f, 0xa3, 0x7d, 0x12, 0x9b, 0x75, 0x67, 0x46 }    },    { 16, 16,       { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,         0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },      { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96,        0xe9, 0x3d, 0x7e, 0x11, 0x73, 0x93, 0x17, 0x2a },      { 0x07, 0x0a, 0x16, 0xb4, 0x6b, 0x4d, 0x41, 0x44,         0xf7, 0x9b, 0xdd, 0x9d, 0xd0, 0x4a, 0x28, 0x7c }    },    { 16, 40,       { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,         0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },      { 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 },      { 0xdf, 0xa6, 0x67, 0x47, 0xde, 0x9a, 0xe6, 0x30,        0x30, 0xca, 0x32, 0x61, 0x14, 0x97, 0xc8, 0x27 }    },    { 16, 64,       { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,         0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c },      { 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 },      { 0x51, 0xf0, 0xbe, 0xbf, 0x7e, 0x3b, 0x9d, 0x92,         0xfc, 0x49, 0x74, 0x17, 0x79, 0x36, 0x3c, 0xfe }    }    };    unsigned char out[16];    int x, y, err, idx;    unsigned long len;    /* AES can be under rijndael or aes... try to find it */     if ((idx = find_cipher("aes")) == -1) {       if ((idx = find_cipher("rijndael")) == -1) {          return CRYPT_NOP;       }    }    for (x = 0; x < (int)(sizeof(tests)/sizeof(tests[0])); x++) {       len = sizeof(out);        if ((err = omac_memory(idx, tests[x].key, tests[x].keylen, tests[x].msg, tests[x].msglen, out, &len)) != CRYPT_OK) {          return err;       }       if (memcmp(out, tests[x].tag, 16) != 0) {          printf("\n\nTag: ");          for (y = 0; y < 16; y++) printf("%02x", out[y]); printf("\n\n");          return CRYPT_FAIL_TESTVECTOR;       }    }    return CRYPT_OK;#endif}   #endif