1 /* $OpenBSD: dsatest.c,v 1.11 2024/02/29 20:04:43 tb Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <err.h>
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <sys/types.h>
64 #include <sys/stat.h>
65
66 #include <openssl/crypto.h>
67 #include <openssl/bio.h>
68 #include <openssl/err.h>
69 #include <openssl/bn.h>
70
71 #include <openssl/dsa.h>
72
73 static int dsa_cb(int p, int n, BN_GENCB *arg);
74
75 /* seed, out_p, out_q, out_g are taken from the updated Appendix 5 to
76 * FIPS PUB 186 and also appear in Appendix 5 to FIPS PIB 186-1 */
77 static unsigned char seed[20] = {
78 0xd5, 0x01, 0x4e, 0x4b, 0x60, 0xef, 0x2b, 0xa8, 0xb6, 0x21, 0x1b, 0x40,
79 0x62, 0xba, 0x32, 0x24, 0xe0, 0x42, 0x7d, 0xd3,
80 };
81
82 static unsigned char out_p[] = {
83 0x8d, 0xf2, 0xa4, 0x94, 0x49, 0x22, 0x76, 0xaa,
84 0x3d, 0x25, 0x75, 0x9b, 0xb0, 0x68, 0x69, 0xcb,
85 0xea, 0xc0, 0xd8, 0x3a, 0xfb, 0x8d, 0x0c, 0xf7,
86 0xcb, 0xb8, 0x32, 0x4f, 0x0d, 0x78, 0x82, 0xe5,
87 0xd0, 0x76, 0x2f, 0xc5, 0xb7, 0x21, 0x0e, 0xaf,
88 0xc2, 0xe9, 0xad, 0xac, 0x32, 0xab, 0x7a, 0xac,
89 0x49, 0x69, 0x3d, 0xfb, 0xf8, 0x37, 0x24, 0xc2,
90 0xec, 0x07, 0x36, 0xee, 0x31, 0xc8, 0x02, 0x91,
91 };
92
93 static unsigned char out_q[] = {
94 0xc7, 0x73, 0x21, 0x8c, 0x73, 0x7e, 0xc8, 0xee,
95 0x99, 0x3b, 0x4f, 0x2d, 0xed, 0x30, 0xf4, 0x8e,
96 0xda, 0xce, 0x91, 0x5f,
97 };
98
99 static unsigned char out_g[] = {
100 0x62, 0x6d, 0x02, 0x78, 0x39, 0xea, 0x0a, 0x13,
101 0x41, 0x31, 0x63, 0xa5, 0x5b, 0x4c, 0xb5, 0x00,
102 0x29, 0x9d, 0x55, 0x22, 0x95, 0x6c, 0xef, 0xcb,
103 0x3b, 0xff, 0x10, 0xf3, 0x99, 0xce, 0x2c, 0x2e,
104 0x71, 0xcb, 0x9d, 0xe5, 0xfa, 0x24, 0xba, 0xbf,
105 0x58, 0xe5, 0xb7, 0x95, 0x21, 0x92, 0x5c, 0x9c,
106 0xc4, 0x2e, 0x9f, 0x6f, 0x46, 0x4b, 0x08, 0x8c,
107 0xc5, 0x72, 0xaf, 0x53, 0xe6, 0xd7, 0x88, 0x02,
108 };
109
110 static const unsigned char str1[] = "12345678901234567890";
111
112 static BIO *bio_err = NULL;
113
114 int
main(int argc,char ** argv)115 main(int argc, char **argv)
116 {
117 BN_GENCB *cb;
118 DSA *dsa = NULL;
119 int counter, i, j;
120 unsigned char buf[256];
121 unsigned long h;
122 unsigned char sig[256];
123 unsigned int siglen;
124 int ret = 0;
125
126 if (bio_err == NULL)
127 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
128
129 ERR_load_crypto_strings();
130
131 BIO_printf(bio_err, "test generation of DSA parameters\n");
132
133 if ((cb = BN_GENCB_new()) == NULL)
134 goto end;
135
136 BN_GENCB_set(cb, dsa_cb, bio_err);
137 if ((dsa = DSA_new()) == NULL)
138 goto end;
139
140 if (DSA_get0_engine(dsa) != NULL) {
141 BIO_printf(bio_err, "ENGINE was not NULL\n");
142 goto end;
143 }
144
145 if (!DSA_generate_parameters_ex(dsa, 512, seed, 20, &counter, &h, cb))
146 goto end;
147
148 BIO_printf(bio_err, "seed\n");
149 for (i = 0; i < 20; i += 4) {
150 BIO_printf(bio_err, "%02X%02X%02X%02X ",
151 seed[i], seed[i + 1], seed[i + 2], seed[i + 3]);
152 }
153 BIO_printf(bio_err, "\ncounter=%d h=%ld\n", counter, h);
154
155 DSA_print(bio_err, dsa, 0);
156 if (counter != 105) {
157 BIO_printf(bio_err, "counter should be 105\n");
158 goto end;
159 }
160 if (h != 2) {
161 BIO_printf(bio_err, "h should be 2\n");
162 goto end;
163 }
164
165 i = BN_bn2bin(DSA_get0_q(dsa), buf);
166 j = sizeof(out_q);
167 if ((i != j) || (memcmp(buf, out_q, i) != 0)) {
168 BIO_printf(bio_err, "q value is wrong\n");
169 goto end;
170 }
171
172 i = BN_bn2bin(DSA_get0_p(dsa), buf);
173 j = sizeof(out_p);
174 if ((i != j) || (memcmp(buf, out_p, i) != 0)) {
175 BIO_printf(bio_err, "p value is wrong\n");
176 goto end;
177 }
178
179 i = BN_bn2bin(DSA_get0_g(dsa), buf);
180 j = sizeof(out_g);
181 if ((i != j) || (memcmp(buf, out_g, i) != 0)) {
182 BIO_printf(bio_err, "g value is wrong\n");
183 goto end;
184 }
185
186 DSA_generate_key(dsa);
187 DSA_sign(0, str1, 20, sig, &siglen, dsa);
188 if (DSA_verify(0, str1, 20, sig, siglen, dsa) == 1)
189 ret = 1;
190
191 end:
192 BN_GENCB_free(cb);
193 if (!ret)
194 ERR_print_errors(bio_err);
195 DSA_free(dsa);
196 CRYPTO_cleanup_all_ex_data();
197 ERR_remove_thread_state(NULL);
198 ERR_free_strings();
199 BIO_free(bio_err);
200 bio_err = NULL;
201
202 return !ret;
203 }
204
205 static int
dsa_cb(int p,int n,BN_GENCB * arg)206 dsa_cb(int p, int n, BN_GENCB *arg)
207 {
208 char c = '*';
209 static int ok = 0, num = 0;
210
211 if (p == 0) {
212 c = '.';
213 num++;
214 }
215 if (p == 1)
216 c = '+';
217 if (p == 2) {
218 c = '*';
219 ok++;
220 }
221
222 if (p == 3)
223 c = '\n';
224 BIO_write(BN_GENCB_get_arg(arg), &c, 1);
225 (void)BIO_flush(BN_GENCB_get_arg(arg));
226
227 if (!ok && (p == 0) && (num > 1)) {
228 BIO_printf((BIO *)arg, "error in dsatest\n");
229 return 0;
230 }
231 return 1;
232 }
233