/* 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 *//* Submited by Dobes Vandermeer  (dobes@smartt.com) */#include "mycrypt.h"/*    (1) append zeros to the end of K to create a B byte string        (e.g., if K is of length 20 bytes and B=64, then K will be         appended with 44 zero bytes 0x00)    (2) XOR (bitwise exclusive-OR) the B byte string computed in step        (1) with ipad (ipad = the byte 0x36 repeated B times)    (3) append the stream of data 'text' to the B byte string resulting        from step (2)    (4) apply H to the stream generated in step (3)    (5) XOR (bitwise exclusive-OR) the B byte string computed in        step (1) with opad (opad = the byte 0x5C repeated B times.)    (6) append the H result from step (4) to the B byte string        resulting from step (5)    (7) apply H to the stream generated in step (6) and output        the result*/#ifdef HMAC#define HMAC_BLOCKSIZE hash_descriptor[hash].blocksize/*    TEST CASES SOURCE:Network Working Group                                          P. ChengRequest for Comments: 2202                                          IBMCategory: Informational                                        R. Glenn                                                                   NIST                                                         September 1997                 Test Cases for HMAC-MD5 and HMAC-SHA-1*/int hmac_test(void){ #ifndef LTC_TEST    return CRYPT_NOP; #else        unsigned char digest[MAXBLOCKSIZE];    int i;    static const struct hmac_test_case {        int num;        char *algo;        unsigned char key[128];        unsigned long keylen;        unsigned char data[128];        unsigned long datalen;        unsigned char digest[MAXBLOCKSIZE];    } cases[] = {        /*        3. Test Cases for HMAC-SHA-1        test_case =     1        key =           0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b        key_len =       20        data =          "Hi Ther     20        digest =        0x4c1a03424b55e07fe7f27be1d58bb9324a9a5a04        digest-96 =     0x4c1a03424b55e07fe7f27be1        */        { 5, "sha1",            {0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,              0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,              0x0c, 0x0c, 0x0c, 0x0c}, 20,            "Test With Truncation", 20,            {0x4c, 0x1a, 0x03, 0x42, 0x4b, 0x55, 0xe0, 0x7f, 0xe7, 0xf2,             0x7b, 0xe1, 0xd5, 0x8b, 0xb9, 0x32, 0x4a, 0x9a, 0x5a, 0x04} },        /*        test_case =     6        key =           0xaa repeated 80 times        key_len =       80        data =          "Test Using Larger Than Block-Size Key - Hash Key First"        data_len =      54        digest =        0xaa4ae5e15272d00e95705637ce8a3b55ed402112        */        { 6, "sha1",            {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80,            "Test Using Larger Than Block-Size Key - Hash Key First", 54,            {0xaa, 0x4a, 0xe5, 0xe1, 0x52, 0x72, 0xd0, 0x0e,             0x95, 0x70, 0x56, 0x37, 0xce, 0x8a, 0x3b, 0x55,              0xed, 0x40, 0x21, 0x12} },        /*        test_case =     7        key =           0xaa repeated 80 times        key_len =       80        data =          "Test Using Larger Than Block-Size Key and Larger                        Than One Block-Size Data"        data_len =      73        digest =        0xe8e99d0f45237d786d6bbaa7965c7808bbff1a91        */        { 7, "sha1",            {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80,            "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data", 73,            {0xe8, 0xe9, 0x9d, 0x0f, 0x45, 0x23, 0x7d, 0x78, 0x6d,             0x6b, 0xba, 0xa7, 0x96, 0x5c, 0x78, 0x08, 0xbb, 0xff, 0x1a, 0x91} },        /*        2. Test Cases for HMAC-MD5        test_case =     1        key =           0x0b 0b 0b 0b                           0b 0b 0b 0b                          0b 0b 0b 0b                          0b 0b 0b 0b        key_len =       16        data =          "Hi There"        data_len =      8        digest =        0x92 94 72 7a                           36 38 bb 1c                           13 f4 8e f8                           15 8b fc 9d        */        { 1, "md5",            {0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,              0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b}, 16,            "Hi There", 8,            {0x92, 0x94, 0x72, 0x7a, 0x36, 0x38, 0xbb, 0x1c,              0x13, 0xf4, 0x8e, 0xf8, 0x15, 0x8b, 0xfc, 0x9d}  },        /*        test_case =     2        key =           "Jefe"        key_len =       4        data =          "what do ya want for nothing?"        data_len =      28        digest =        0x750c783e6ab0b503eaa86e310a5db738        */        { 2, "md5",            "Jefe", 4,            "what do ya want for nothing?", 28,            {0x75, 0x0c, 0x78, 0x3e, 0x6a, 0xb0, 0xb5, 0x03,              0xea, 0xa8, 0x6e, 0x31, 0x0a, 0x5d, 0xb7, 0x38} },        /*        test_case =     3        key =           0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa        key_len         16        data =          0xdd repeated 50 times        data_len =      50        digest =        0x56be34521d144c88dbb8c733f0e8b3f6        */        { 3, "md5",            {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 16,            {0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,             0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,             0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,             0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,             0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd}, 50,            {0x56, 0xbe, 0x34, 0x52, 0x1d, 0x14, 0x4c, 0x88,             0xdb, 0xb8, 0xc7, 0x33, 0xf0, 0xe8, 0xb3, 0xf6} },        /*        test_case =     4        key = 0x0102030405060708090a0b0c0d0e0f10111213141516171819        key_len         25        data =          0xcd repeated 50 times        data_len =      50        digest =        0x697eaf0aca3a3aea3a75164746ffaa79        */        { 4, "md5",            {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,             0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,             0x15, 0x16, 0x17, 0x18, 0x19}, 25,            {0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,             0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,             0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,             0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,             0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd}, 50,            {0x69, 0x7e, 0xaf, 0x0a, 0xca, 0x3a, 0x3a, 0xea,              0x3a, 0x75, 0x16, 0x47, 0x46, 0xff, 0xaa, 0x79} },        /*         test_case =     5        key =           0x0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c        key_len =       16        data =          "Test With Truncation"        data_len =      20        digest =        0x56461ef2342edc00f9bab995690efd4c        digest-96       0x56461ef2342edc00f9bab995        */        { 5, "md5",            {0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,              0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c}, 16,            "Test With Truncation", 20,            {0x56, 0x46, 0x1e, 0xf2, 0x34, 0x2e, 0xdc, 0x00,              0xf9, 0xba, 0xb9, 0x95, 0x69, 0x0e, 0xfd, 0x4c} },        /*        test_case =     6        key =           0xaa repeated 80 times        key_len =       80        data =          "Test Using Larger Than Block-Size Key - Hash Key First"        data_len =      54        digest =        0x6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd        */        { 6, "md5",            {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,                          0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80,            "Test Using Larger Than Block-Size Key - Hash Key First", 54,            {0x6b, 0x1a, 0xb7, 0xfe, 0x4b, 0xd7, 0xbf, 0x8f,              0x0b, 0x62, 0xe6, 0xce, 0x61, 0xb9, 0xd0, 0xcd} },        /*        test_case =     7        key =           0xaa repeated 80 times        key_len =       80        data =          "Test Using Larger Than Block-Size Key and Larger                        Than One Block-Size Data"        data_len =      73        digest =        0x6f630fad67cda0ee1fb1f562db3aa53e        */        { 7, "md5",            {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,              0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,             0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}, 80,            "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data", 73,            {0x6f, 0x63, 0x0f, 0xad, 0x67, 0xcd, 0xa0, 0xee,             0x1f, 0xb1, 0xf5, 0x62, 0xdb, 0x3a, 0xa5, 0x3e} }    };    unsigned long outlen;    int err;    int tested=0,failed=0;    for(i=0; i < (int)(sizeof(cases) / sizeof(cases[0])); i++) {        int hash = find_hash(cases[i].algo);        if (hash == -1) continue;        ++tested;        outlen = sizeof(digest);        if((err = hmac_memory(hash, cases[i].key, cases[i].keylen, cases[i].data, cases[i].datalen, digest, &outlen)) != CRYPT_OK) {#if 0            printf("HMAC-%s test #%d\n", cases[i].algo, cases[i].num);#endif            return err;        }        if(memcmp(digest, cases[i].digest, (size_t)hash_descriptor[hash].hashsize) != 0)  {#if 0            unsigned int j;            printf("\nHMAC-%s test #%d:\n", cases[i].algo, cases[i].num);            printf(  "Result:  0x");            for(j=0; j < hash_descriptor[hash].hashsize; j++) {                printf("%2x ", digest[j]);            }            printf("\nCorrect: 0x");            for(j=0; j < hash_descriptor[hash].hashsize; j++) {               printf("%2x ", cases[i].digest[j]);            }            printf("\n");#endif            failed++;            //return CRYPT_ERROR;        } else {            /* printf("HMAC-%s test #%d: Passed\n", cases[i].algo, cases[i].num); */        }    }    if (failed != 0) {        return CRYPT_FAIL_TESTVECTOR;    } else if (tested == 0) {        return CRYPT_NOP;    } else {        return CRYPT_OK;    } #endif}#endif