C++ (Cpp) tc_hmac_prng_generate Examples

Example #1

File: test_hmac_prng.c Project: sunkaizhu/zephyr

void main(void)
{
	/* Fake personalization and additional_input
	 * (replace by appropriate values)
	 * e.g.: hostname+timestamp
	 */
	uint8_t additional_input[] = "additional input";
	uint8_t personalization[] = "HOSTNAME";
	uint32_t size = (1 << 15);
	uint32_t result = TC_PASS;
	struct tc_hmac_prng_struct h;
	uint8_t random[size];
	uint8_t seed[128];
	uint32_t i;

	TC_START("Performing HMAC-PRNG tests:");
	TC_PRINT("HMAC-PRNG test#1 (init, reseed, generate):\n");

	/* Fake seed (replace by a a truly random seed): */
	for (i = 0; i < (uint32_t)sizeof(seed); ++i) {
		seed[i] = i;
	}

	TC_PRINT("HMAC-PRNG test#1 (init):\n");
	if (tc_hmac_prng_init(&h, personalization,
			      sizeof(personalization)) == 0) {
		TC_ERROR("HMAC-PRNG initialization failed.\n");
		result = TC_FAIL;
		goto exitTest;
	}
	TC_END_RESULT(result);

	TC_PRINT("HMAC-PRNG test#1 (reseed):\n");
	if (tc_hmac_prng_reseed(&h, seed, sizeof(seed), additional_input,
				sizeof(additional_input)) == 0) {
		TC_ERROR("HMAC-PRNG reseed failed.\n");
		result = TC_FAIL;
		goto exitTest;
	}
	TC_END_RESULT(result);

	TC_PRINT("HMAC-PRNG test#1 (generate):\n");
	if (tc_hmac_prng_generate(random, size, &h) < 1) {
		TC_ERROR("HMAC-PRNG generate failed.\n");
		result = TC_FAIL;
		goto exitTest;
	}
	TC_END_RESULT(result);

	TC_PRINT("All HMAC tests succeeded!\n");

exitTest:
	TC_END_RESULT(result);
	TC_END_REPORT(result);
}

Example #2

File: test_hmac_prng.c Project: chris-morrison/tinycrypt

/*
 * Main task to test AES
 */
int main(void)
{
        uint8_t seed[128];
        struct tc_hmac_prng_struct h;
        unsigned int size = (1 << 19);
        uint8_t random[size];
        unsigned int i;
        unsigned int result = TC_PASS;

        TC_START("Performing HMAC-PRNG tests:");
        TC_PRINT("HMAC-PRNG test#1 (init, reseed, generate):\n");

        /* Fake seed (replace by a a truly random seed): */
        for (i = 0; i < (unsigned int) sizeof(seed); ++i) {
                seed[i] = i;
        }

        /* Fake personalization and additional_input (replace by appropriate
	     * values): *
	     * e.g.: hostname+timestamp */
        uint8_t *personalization = (uint8_t *) "HOSTNAME";
        uint8_t *additional_input = (uint8_t *) "additional input";

        TC_PRINT("HMAC-PRNG test#1 (init):\n");
        if (tc_hmac_prng_init(&h, personalization,
			      sizeof(personalization)) == 0) {
                TC_ERROR("HMAC-PRNG initialization failed.\n");
                result = TC_FAIL;
                goto exitTest;
        }
        TC_END_RESULT(result);

        TC_PRINT("HMAC-PRNG test#1 (reseed):\n");
        if (tc_hmac_prng_reseed(&h, seed, sizeof(seed), additional_input,
                                sizeof(additional_input)) == 0) {
                TC_ERROR("HMAC-PRNG reseed failed.\n");
                result = TC_FAIL;
                goto exitTest;
        }

        TC_END_RESULT(result);

        TC_PRINT("HMAC-PRNG test#1 (generate):\n");
        if (tc_hmac_prng_generate(random, size, &h) < 1) {
                TC_ERROR("HMAC-PRNG generate failed.\n");
                result = TC_FAIL;
                goto exitTest;
        }
        TC_END_RESULT(result);

#ifdef TC_DEBUG_MODE
	printBinaryFile(random, size);
	show ("Pseudo-random data", random, size);
#endif

        TC_PRINT("All HMAC tests succeeded!\n");

 exitTest:
        TC_END_RESULT(result);
        TC_END_REPORT(result);
}