tests-hashes-md5.c
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/*
* Copyright (C) 2015 Freie Universität Berlin
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup unittests
* @{
*
* @file
* @brief Test cases for the MD5 hash implementation
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
*
* @}
*/
#include <stdio.h>
#include <string.h>
#include "embUnit/embUnit.h"
#include "hashes/md5.h"
#define MD5_DIGEST_LENGTH (16U)
static int calc_and_compare_hash(const char *str, const char *expected)
{
uint8_t hash[MD5_DIGEST_LENGTH];
char tmp[(2 * MD5_DIGEST_LENGTH) + 1];
/* calculate hash */
md5(hash, (const uint8_t *)str, strlen(str));
/* copy hash to string */
for (size_t i = 0; i < MD5_DIGEST_LENGTH; i++) {
sprintf(&(tmp[i * 2]), "%02x", hash[i]);
}
tmp[MD5_DIGEST_LENGTH * 2] = '\0';
/* compare with result string */
return strncmp(tmp, expected, strlen(tmp));
}
/* test cases copied from appendix A.5 of RFC 1321 */
static void test_hashes_md5(void)
{
TEST_ASSERT(calc_and_compare_hash("",
"d41d8cd98f00b204e9800998ecf8427e") == 0);
TEST_ASSERT(calc_and_compare_hash("a",
"0cc175b9c0f1b6a831c399e269772661") == 0);
TEST_ASSERT(calc_and_compare_hash("abc",
"900150983cd24fb0d6963f7d28e17f72") == 0);
TEST_ASSERT(calc_and_compare_hash("message digest",
"f96b697d7cb7938d525a2f31aaf161d0") == 0);
TEST_ASSERT(calc_and_compare_hash("abcdefghijklmnopqrstuvwxyz",
"c3fcd3d76192e4007dfb496cca67e13b") == 0);
TEST_ASSERT(calc_and_compare_hash(
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"d174ab98d277d9f5a5611c2c9f419d9f") == 0);
TEST_ASSERT(calc_and_compare_hash(
"12345678901234567890123456789012345678901234567890123456789012345678901234567890",
"57edf4a22be3c955ac49da2e2107b67a") == 0);
}
Test *tests_hashes_md5_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_hashes_md5),
};
EMB_UNIT_TESTCALLER(test_hashes_md5, NULL, NULL, fixtures);
return (Test *)&test_hashes_md5;
}