/* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* FIPS 180-2 Tests for message digest functions. */

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "sha_test_vectors.h"

int SHA1_tests(void) {
	int i, success = 1;
	uint8_t sha1_digest[SHA1_DIGEST_SIZE];
	uint8_t* test_inputs[3];
	test_inputs[0] = (uint8_t *) oneblock_msg;
	test_inputs[1] = (uint8_t *) multiblock_msg1;
	test_inputs[2] = (uint8_t *) long_msg;

	for (i = 0; i < 3; i++) {
		internal_SHA1(test_inputs[i], strlen((char *)test_inputs[i]),
			      sha1_digest);
		if (!memcmp(sha1_digest, sha1_results[i],
			    SHA1_DIGEST_SIZE)) {
			fprintf(stderr, "Test vector %d PASSED for SHA-1\n",
				i+1);
		}
		else {
			fprintf(stderr, "Test vector %d FAILED for SHA-1\n",
				i+1);
			success = 0;
		}
	}
	return success;
}

int SHA256_tests(void) {
	int i, success = 1;
	uint8_t sha256_digest[SHA256_DIGEST_SIZE];
	uint8_t* test_inputs[3];
	test_inputs[0] = (uint8_t *) oneblock_msg;
	test_inputs[1] = (uint8_t *) multiblock_msg1;
	test_inputs[2] = (uint8_t *) long_msg;

	for (i = 0; i < 3; i++) {
		internal_SHA256(test_inputs[i], strlen((char *)test_inputs[i]),
				sha256_digest);
		if (!memcmp(sha256_digest, sha256_results[i],
			    SHA256_DIGEST_SIZE)) {
			fprintf(stderr, "Test vector %d PASSED for SHA-256\n",
				i+1);
		}
		else {
			fprintf(stderr, "Test vector %d FAILED for SHA-256\n",
				i+1);
			success = 0;
		}
	}
	return success;
}

int SHA512_tests(void) {
	int i, success = 1;
	uint8_t sha512_digest[SHA512_DIGEST_SIZE];
	uint8_t* test_inputs[3];
	test_inputs[0] = (uint8_t *) oneblock_msg;
	test_inputs[1] = (uint8_t *) multiblock_msg2;
	test_inputs[2] = (uint8_t *) long_msg;

	for (i = 0; i < 3; i++) {
		internal_SHA512(test_inputs[i], strlen((char *)test_inputs[i]),
				sha512_digest);
		if (!memcmp(sha512_digest, sha512_results[i],
			    SHA512_DIGEST_SIZE)) {
			fprintf(stderr, "Test vector %d PASSED for SHA-512\n",
				i+1);
		}
		else {
			fprintf(stderr, "Test vector %d FAILED for SHA-512\n",
				i+1);
			success = 0;
		}
	}
	return success;
}

int main(int argc, char* argv[]) {
	int success = 1;
	/* Initialize long_msg with 'a' x 1,000,000 */
	long_msg = (char *) malloc(1000001);
	memset(long_msg, 'a', 1000000);
	long_msg[1000000]=0;

	if (!SHA1_tests())
		success = 0;
	if (!SHA256_tests())
		success = 0;
	if (!SHA512_tests())
		success = 0;

	free(long_msg);

	return !success;
}