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      1 /*	$NetBSD: t_hmac.c,v 1.3 2023/05/24 18:22:05 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2016 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_hmac.c,v 1.3 2023/05/24 18:22:05 christos Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <string.h>
     36 #include <stdlib.h>
     37 #include <openssl/evp.h>
     38 #include <openssl/hmac.h>
     39 
     40 static void
     41 test(void)
     42 {
     43 	uint8_t         tmp1[EVP_MAX_MD_SIZE];
     44 	uint8_t         tmp2[EVP_MAX_MD_SIZE];
     45 	uint8_t key[256];
     46 	uint8_t data[4096];
     47 	unsigned int tmp1len;
     48 	size_t tmp2len;
     49 	int stop;
     50 	void *e1;
     51 	const void *evps[] = {
     52 #if OPENSSL_VERSION_NUMBER < 0x10100000L
     53 		EVP_md2(),
     54 #endif
     55 #if OPENSSL_VERSION_NUMBER < 0x30000000L
     56 		EVP_md4(),
     57 #endif
     58 		EVP_md5(),
     59 		EVP_ripemd160(),
     60 		EVP_sha1(),
     61 		EVP_sha224(),
     62 		EVP_sha256(),
     63 		EVP_sha384(),
     64 		EVP_sha512(),
     65 	};
     66 	const char *names[] = {
     67 #if OPENSSL_VERSION_NUMBER < 0x10100000L
     68 		"md2",
     69 #endif
     70 #if OPENSSL_VERSION_NUMBER < 0x30000000L
     71 		"md4",
     72 #endif
     73 		"md5",
     74 		"rmd160",
     75 		"sha1",
     76 		"sha224",
     77 		"sha256",
     78 		"sha384",
     79 		"sha512",
     80 	};
     81 
     82 	for (size_t k = 0; k < sizeof(key); k++)
     83 		key[k] = k;
     84 	for (size_t d = 0; d < sizeof(data); d++)
     85 		data[d] = d % 256;
     86 
     87 	for (size_t t = 0; t < __arraycount(names); t++)
     88 	    for (size_t i = 1; i < sizeof(key); i += 9)
     89 		for (size_t j = 3; j < sizeof(data); j += 111) {
     90 			stop = 0;
     91 #ifdef DEBUG
     92 			printf("%s: keysize = %zu datasize = %zu\n", names[t],
     93 			    i, j);
     94 #endif
     95 			memset(tmp1, 0, sizeof(tmp1));
     96 			memset(tmp2, 0, sizeof(tmp2));
     97 			e1 = HMAC(evps[t], key, i, data, j, tmp1, &tmp1len);
     98 			ATF_REQUIRE_MSG(e1 != NULL, "hash %s could not be "
     99 			    "created", names[t]);
    100 			tmp2len = hmac(names[t], key, i, data, j, tmp2,
    101 			    sizeof(tmp2));
    102 			ATF_REQUIRE_MSG(tmp1len == tmp2len, "hash %s len %u "
    103 			    "!= %zu", names[t], tmp1len, tmp2len);
    104 			for (size_t k = 0; k < tmp2len; k++)
    105 				if (tmp1[k] != tmp2[k]) {
    106 #ifdef DEBUG
    107 					printf("%zu %.2x %.2x\n",
    108 					    k, tmp1[k], tmp2[k]);
    109 #endif
    110 					stop = 1;
    111 					break;
    112 				}
    113 			ATF_REQUIRE_MSG(!stop, "hash %s failed for "
    114 				"keylen=%zu, datalen=%zu", names[t], i, j);
    115 		}
    116 }
    117 
    118 ATF_TC(t_hmac);
    119 
    120 ATF_TC_HEAD(t_hmac, tc)
    121 {
    122 	atf_tc_set_md_var(tc, "descr",
    123 	    "Test hmac functions for consistent results");
    124 }
    125 
    126 ATF_TC_BODY(t_hmac, tc)
    127 {
    128 	test();
    129 }
    130 
    131 ATF_TP_ADD_TCS(tp)
    132 {
    133 	ATF_TP_ADD_TC(tp, t_hmac);
    134 	return atf_no_error();
    135 }
    136 
    137