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
40static void
41test(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
118ATF_TC(t_hmac);
119
120ATF_TC_HEAD(t_hmac, tc)
121{
122	atf_tc_set_md_var(tc, "descr",
123	    "Test hmac functions for consistent results");
124}
125
126ATF_TC_BODY(t_hmac, tc)
127{
128	test();
129}
130
131ATF_TP_ADD_TCS(tp)
132{
133	ATF_TP_ADD_TC(tp, t_hmac);
134	return atf_no_error();
135}
136
137