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authorcvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
committercvs2svn <admin@example.com>2025-04-14 17:32:06 +0000
commiteb8dd9dca1228af0cd132f515509051ecfabf6f6 (patch)
treeedb6da6af7e865d488dc1a29309f1e1ec226e603 /src/usr.bin/openssl/dsaparam.c
parent247f0352e0ed72a4f476db9dc91f4d982bc83eb2 (diff)
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This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to 'src/usr.bin/openssl/dsaparam.c')
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diff --git a/src/usr.bin/openssl/dsaparam.c b/src/usr.bin/openssl/dsaparam.c
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1/* $OpenBSD: dsaparam.c,v 1.16 2025/01/19 10:24:17 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 <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
60
61/* Until the key-gen callbacks are modified to use newer prototypes, we allow
62 * deprecated functions for openssl-internal code */
63#ifdef OPENSSL_NO_DEPRECATED
64#undef OPENSSL_NO_DEPRECATED
65#endif
66
67#include <limits.h>
68#include <stdio.h>
69#include <stdlib.h>
70#include <string.h>
71#include <time.h>
72
73#include "apps.h"
74
75#include <openssl/bio.h>
76#include <openssl/bn.h>
77#include <openssl/err.h>
78#include <openssl/dsa.h>
79#include <openssl/pem.h>
80#include <openssl/x509.h>
81
82static struct {
83 int genkey;
84 char *infile;
85 int informat;
86 int noout;
87 char *outfile;
88 int outformat;
89 int text;
90} cfg;
91
92static const struct option dsaparam_options[] = {
93 {
94 .name = "genkey",
95 .desc = "Generate a DSA key",
96 .type = OPTION_FLAG,
97 .opt.flag = &cfg.genkey,
98 },
99 {
100 .name = "in",
101 .argname = "file",
102 .desc = "Input file (default stdin)",
103 .type = OPTION_ARG,
104 .opt.arg = &cfg.infile,
105 },
106 {
107 .name = "inform",
108 .argname = "format",
109 .desc = "Input format (DER or PEM (default))",
110 .type = OPTION_ARG_FORMAT,
111 .opt.value = &cfg.informat,
112 },
113 {
114 .name = "noout",
115 .desc = "No output",
116 .type = OPTION_FLAG,
117 .opt.flag = &cfg.noout,
118 },
119 {
120 .name = "out",
121 .argname = "file",
122 .desc = "Output file (default stdout)",
123 .type = OPTION_ARG,
124 .opt.arg = &cfg.outfile,
125 },
126 {
127 .name = "outform",
128 .argname = "format",
129 .desc = "Output format (DER or PEM (default))",
130 .type = OPTION_ARG_FORMAT,
131 .opt.value = &cfg.outformat,
132 },
133 {
134 .name = "text",
135 .desc = "Print as text",
136 .type = OPTION_FLAG,
137 .opt.flag = &cfg.text,
138 },
139 { NULL },
140};
141
142static void
143dsaparam_usage(void)
144{
145 fprintf(stderr,
146 "usage: dsaparam [-genkey] [-in file]\n"
147 " [-inform format] [-noout] [-out file] [-outform format]\n"
148 " [-text] [numbits]\n\n");
149 options_usage(dsaparam_options);
150}
151
152static int dsa_cb(int p, int n, BN_GENCB *cb);
153
154int
155dsaparam_main(int argc, char **argv)
156{
157 DSA *dsa = NULL;
158 int i;
159 BIO *in = NULL, *out = NULL;
160 BN_GENCB *cb = NULL;
161 int ret = 1;
162 int numbits = -1;
163 char *strbits = NULL;
164
165 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
166 perror("pledge");
167 exit(1);
168 }
169
170 memset(&cfg, 0, sizeof(cfg));
171
172 cfg.informat = FORMAT_PEM;
173 cfg.outformat = FORMAT_PEM;
174
175 if (options_parse(argc, argv, dsaparam_options, &strbits, NULL) != 0) {
176 dsaparam_usage();
177 goto end;
178 }
179
180 if (strbits != NULL) {
181 const char *errstr;
182 numbits = strtonum(strbits, 0, INT_MAX, &errstr);
183 if (errstr) {
184 fprintf(stderr, "Invalid number of bits: %s", errstr);
185 goto end;
186 }
187 }
188
189 in = BIO_new(BIO_s_file());
190 out = BIO_new(BIO_s_file());
191 if (in == NULL || out == NULL) {
192 ERR_print_errors(bio_err);
193 goto end;
194 }
195 if (cfg.infile == NULL)
196 BIO_set_fp(in, stdin, BIO_NOCLOSE);
197 else {
198 if (BIO_read_filename(in, cfg.infile) <= 0) {
199 perror(cfg.infile);
200 goto end;
201 }
202 }
203 if (cfg.outfile == NULL) {
204 BIO_set_fp(out, stdout, BIO_NOCLOSE);
205 } else {
206 if (BIO_write_filename(out, cfg.outfile) <= 0) {
207 perror(cfg.outfile);
208 goto end;
209 }
210 }
211
212 if (numbits > 0) {
213 if ((cb = BN_GENCB_new()) == NULL) {
214 BIO_printf(bio_err,
215 "Error allocating BN_GENCB object\n");
216 goto end;
217 }
218
219 BN_GENCB_set(cb, dsa_cb, bio_err);
220
221 dsa = DSA_new();
222 if (!dsa) {
223 BIO_printf(bio_err, "Error allocating DSA object\n");
224 goto end;
225 }
226 BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", numbits);
227 BIO_printf(bio_err, "This could take some time\n");
228 if (!DSA_generate_parameters_ex(dsa, numbits, NULL, 0, NULL, NULL, cb)) {
229 ERR_print_errors(bio_err);
230 BIO_printf(bio_err, "Error, DSA key generation failed\n");
231 goto end;
232 }
233 } else if (cfg.informat == FORMAT_ASN1)
234 dsa = d2i_DSAparams_bio(in, NULL);
235 else if (cfg.informat == FORMAT_PEM)
236 dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
237 else {
238 BIO_printf(bio_err, "bad input format specified\n");
239 goto end;
240 }
241 if (dsa == NULL) {
242 BIO_printf(bio_err, "unable to load DSA parameters\n");
243 ERR_print_errors(bio_err);
244 goto end;
245 }
246 if (cfg.text) {
247 DSAparams_print(out, dsa);
248 }
249 if (!cfg.noout) {
250 if (cfg.outformat == FORMAT_ASN1)
251 i = i2d_DSAparams_bio(out, dsa);
252 else if (cfg.outformat == FORMAT_PEM)
253 i = PEM_write_bio_DSAparams(out, dsa);
254 else {
255 BIO_printf(bio_err, "bad output format specified for outfile\n");
256 goto end;
257 }
258 if (!i) {
259 BIO_printf(bio_err, "unable to write DSA parameters\n");
260 ERR_print_errors(bio_err);
261 goto end;
262 }
263 }
264 if (cfg.genkey) {
265 DSA *dsakey;
266
267 if ((dsakey = DSAparams_dup(dsa)) == NULL)
268 goto end;
269 if (!DSA_generate_key(dsakey)) {
270 ERR_print_errors(bio_err);
271 DSA_free(dsakey);
272 goto end;
273 }
274 if (cfg.outformat == FORMAT_ASN1)
275 i = i2d_DSAPrivateKey_bio(out, dsakey);
276 else if (cfg.outformat == FORMAT_PEM)
277 i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, NULL);
278 else {
279 BIO_printf(bio_err, "bad output format specified for outfile\n");
280 DSA_free(dsakey);
281 goto end;
282 }
283 DSA_free(dsakey);
284 }
285 ret = 0;
286
287 end:
288 BIO_free(in);
289 BIO_free_all(out);
290 BN_GENCB_free(cb);
291 DSA_free(dsa);
292
293 return (ret);
294}
295
296static int
297dsa_cb(int p, int n, BN_GENCB *cb)
298{
299 char c = '*';
300
301 if (p == 0)
302 c = '.';
303 if (p == 1)
304 c = '+';
305 if (p == 2)
306 c = '*';
307 if (p == 3)
308 c = '\n';
309 BIO_write(BN_GENCB_get_arg(cb), &c, 1);
310 (void) BIO_flush(BN_GENCB_get_arg(cb));
311#ifdef GENCB_TEST
312 if (stop_keygen_flag)
313 return 0;
314#endif
315 return 1;
316}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-09 21:04:04 +0000