C++ (Cpp) mhash_hmac_end Examples

Example #1

File: original.cpp Project: Exceltior/CTF-Solutions

int checkhash(unsigned char *data, size_t datalen, char *checkhash) {
    char keyword[100];

    memcpy(together + pos, data, datalen);
    pos += datalen;

    mhash_keygen((keygenid)0, (hashid)10, 10, keyword, 100, (void *)"aaaa", 3,  key, keylen);

    MHASH hash = mhash_hmac_init((hashid)10, keyword, 100, mhash_get_hash_pblock((hashid)10));

    mhash(hash, data, datalen);
    void *mac = mhash_hmac_end(hash);

    char hash_printed[1000] = "0x";
    for (int j = 0; j < mhash_get_block_size((hashid)10); j++) {
        unsigned char *m = (unsigned char *)mac;
        char r[3];
        snprintf(r, 3, "%.2x", m[j]);
        strcat(hash_printed, r);
    }

    printf("%s\n", hash_printed);

    return strcmp(hash_printed, checkhash) == 0;
}

Example #2

File: hmac_test.c Project: Distrotech/mhash

int main()
{

	mutils_word8 *tmp;
	mutils_word8 *password;
	mutils_word32 passlen;
	mutils_word8 *data;
	mutils_word32 datalen;
	MHASH td;
	mutils_word8 *mac;
	mutils_word32 j;
	int result;

	passlen=sizeof(KEY1) - 1;
	password = mutils_malloc(passlen + 1);
	mutils_memcpy(password, (mutils_word8 *) KEY1, passlen);

	datalen = mutils_strlen((mutils_word8 *) DATA1);
	data = mutils_malloc(datalen+1);
	mutils_strcpy(data, (mutils_word8 *) DATA1);

	td = mhash_hmac_init(MHASH_MD5, password, passlen,
			    mhash_get_hash_pblock(MHASH_MD5));

	mhash(td, data, datalen);
	mac = mhash_hmac_end(td);

	tmp = mutils_asciify(mac, mhash_get_block_size(MHASH_MD5));
	
	result = mutils_strcmp((mutils_word8 *) DIGEST1, tmp);

	mutils_free(password);
	mutils_free(data);

	if (result != 0) {
		fprintf(stderr, "HMAC-Test: Failed\n");
		fprintf(stderr, "Digest size: %d\n", mhash_get_block_size(MHASH_MD5));
		fprintf(stderr, "Expecting: 0x%s\n", DIGEST1);
		fprintf(stderr, "Got: 0x%s\n", tmp);
		return(MUTILS_INVALID_RESULT);
	}

	mutils_free(tmp);

	/* Test No 2 */	
	
	mutils_memset(tmp, 0, sizeof(tmp));
	
	passlen=sizeof(KEY2) - 1;
	password = (mutils_word8 *) mutils_malloc(passlen+1);
	mutils_memcpy(password, KEY2, passlen);
	
	datalen = mutils_strlen((mutils_word8 *) DATA2);
	data = (mutils_word8 *) mutils_malloc(datalen+1);
	mutils_strcpy(data, (mutils_word8 *) DATA2);

	td = mhash_hmac_init(MHASH_MD5, password, passlen,
			    mhash_get_hash_pblock(MHASH_MD5));

	mhash(td, data, datalen);
	mac = mhash_hmac_end(td);

	tmp = mutils_asciify(mac, mhash_get_block_size(MHASH_MD5));
	
	result = mutils_strcmp((mutils_word8 *) DIGEST2, tmp);

	mutils_free(password);
	mutils_free(data);

	if (result != 0)
	{
		fprintf(stderr, "HMAC-Test: Failed\n");
		fprintf(stderr, "Expecting: 0x%s\nGot: 0x%s\n", DIGEST2, tmp);
		return(MUTILS_INVALID_RESULT);
	}

	fprintf(stderr, "MD5 HMAC-Test: Ok\n");

	mutils_free(tmp);

	return(MUTILS_OK);
}