1/*	$NetBSD: t_hmac.c,v 1.1 2016/07/02 14:52:09 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 1.1 2016/07/02 14:52:09 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		EVP_md2(),
53		EVP_md4(),
54		EVP_md5(),
55		EVP_ripemd160(),
56		EVP_sha1(),
57		EVP_sha224(),
58		EVP_sha256(),
59		EVP_sha384(),
60		EVP_sha512(),
61	};
62	const char *names[] = {
63		"md2",
64		"md4",
65		"md5",
66		"rmd160",
67		"sha1",
68		"sha224",
69		"sha256",
70		"sha384",
71		"sha512",
72	};
73
74	for (size_t k = 0; k < sizeof(key); k++)
75		key[k] = k;
76	for (size_t d = 0; d < sizeof(data); d++)
77		data[d] = d % 256;
78
79	for (size_t t = 0; t < __arraycount(names); t++)
80	    for (size_t i = 1; i < sizeof(key); i += 9)
81		for (size_t j = 3; j < sizeof(data); j += 111) {
82			stop = 0;
83#ifdef DEBUG
84			printf("%s: keysize = %zu datasize = %zu\n", names[t],
85			    i, j);
86#endif
87			memset(tmp1, 0, sizeof(tmp1));
88			memset(tmp2, 0, sizeof(tmp2));
89			e1 = HMAC(evps[t], key, i, data, j, tmp1, &tmp1len);
90			ATF_REQUIRE(e1 != NULL);
91			tmp2len = hmac(names[t], key, i, data, j, tmp2,
92			    sizeof(tmp2));
93			ATF_REQUIRE_MSG(tmp1len == tmp2len, "hash %s len %u "
94			    "!= %zu", names[t], tmp1len, tmp2len);
95			for (size_t k = 0; k < tmp2len; k++)
96				if (tmp1[k] != tmp2[k]) {
97#ifdef DEBUG
98					printf("%zu %.2x %.2x\n",
99					    k, tmp1[k], tmp2[k]);
100#endif
101					stop = 1;
102					break;
103				}
104			ATF_REQUIRE_MSG(!stop, "hash %s failed for "
105				"keylen=%zu, datalen=%zu", names[t], i, j);
106		}
107}
108
109ATF_TC(t_hmac);
110
111ATF_TC_HEAD(t_hmac, tc)
112{
113	atf_tc_set_md_var(tc, "descr",
114	    "Test hmac functions for consistent results");
115}
116
117ATF_TC_BODY(t_hmac, tc)
118{
119	test();
120}
121
122ATF_TP_ADD_TCS(tp)
123{
124	ATF_TP_ADD_TC(tp, t_hmac);
125	return atf_no_error();
126}
127
128