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d02b48c6 1/* apps/gendsa.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
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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.
ae5c8664 8 *
d02b48c6
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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).
ae5c8664 15 *
d02b48c6
RE
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.
ae5c8664 22 *
d02b48c6
RE
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 :-).
ae5c8664 37 * 4. If you include any Windows specific code (or a derivative thereof) from
d02b48c6
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38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
ae5c8664 40 *
d02b48c6
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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.
ae5c8664 52 *
d02b48c6
RE
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
ae5c8664 59#include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
cf1b7d96 60#ifndef OPENSSL_NO_DSA
ae5c8664
MC
61# include <stdio.h>
62# include <string.h>
63# include <sys/types.h>
64# include <sys/stat.h>
65# include "apps.h"
66# include <openssl/bio.h>
67# include <openssl/err.h>
68# include <openssl/bn.h>
69# include <openssl/dsa.h>
70# include <openssl/x509.h>
71# include <openssl/pem.h>
d02b48c6 72
ae5c8664
MC
73# define DEFBITS 512
74# undef PROG
75# define PROG gendsa_main
d02b48c6 76
667ac4ec
RE
77int MAIN(int, char **);
78
6b691a5c 79int MAIN(int argc, char **argv)
ae5c8664
MC
80{
81 DSA *dsa = NULL;
82 int ret = 1;
83 char *outfile = NULL;
84 char *inrand = NULL, *dsaparams = NULL;
85 char *passargout = NULL, *passout = NULL;
86 BIO *out = NULL, *in = NULL;
87 const EVP_CIPHER *enc = NULL;
ae5c8664 88 char *engine = NULL;
aa01b82c 89 ENGINE *e = NULL;
d02b48c6 90
ae5c8664 91 apps_startup();
d02b48c6 92
ae5c8664
MC
93 if (bio_err == NULL)
94 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
95 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
3647bee2 96
ae5c8664
MC
97 if (!load_config(bio_err, NULL))
98 goto end;
d02b48c6 99
ae5c8664
MC
100 argv++;
101 argc--;
102 for (;;) {
103 if (argc <= 0)
104 break;
105 if (strcmp(*argv, "-out") == 0) {
106 if (--argc < 1)
107 goto bad;
108 outfile = *(++argv);
109 } else if (strcmp(*argv, "-passout") == 0) {
110 if (--argc < 1)
111 goto bad;
112 passargout = *(++argv);
113 }
114# ifndef OPENSSL_NO_ENGINE
115 else if (strcmp(*argv, "-engine") == 0) {
116 if (--argc < 1)
117 goto bad;
118 engine = *(++argv);
119 }
120# endif
121 else if (strcmp(*argv, "-rand") == 0) {
122 if (--argc < 1)
123 goto bad;
124 inrand = *(++argv);
125 } else if (strcmp(*argv, "-") == 0)
126 goto bad;
127# ifndef OPENSSL_NO_DES
128 else if (strcmp(*argv, "-des") == 0)
129 enc = EVP_des_cbc();
130 else if (strcmp(*argv, "-des3") == 0)
131 enc = EVP_des_ede3_cbc();
132# endif
133# ifndef OPENSSL_NO_IDEA
134 else if (strcmp(*argv, "-idea") == 0)
135 enc = EVP_idea_cbc();
136# endif
137# ifndef OPENSSL_NO_SEED
138 else if (strcmp(*argv, "-seed") == 0)
139 enc = EVP_seed_cbc();
140# endif
141# ifndef OPENSSL_NO_AES
142 else if (strcmp(*argv, "-aes128") == 0)
143 enc = EVP_aes_128_cbc();
144 else if (strcmp(*argv, "-aes192") == 0)
145 enc = EVP_aes_192_cbc();
146 else if (strcmp(*argv, "-aes256") == 0)
147 enc = EVP_aes_256_cbc();
148# endif
149# ifndef OPENSSL_NO_CAMELLIA
150 else if (strcmp(*argv, "-camellia128") == 0)
151 enc = EVP_camellia_128_cbc();
152 else if (strcmp(*argv, "-camellia192") == 0)
153 enc = EVP_camellia_192_cbc();
154 else if (strcmp(*argv, "-camellia256") == 0)
155 enc = EVP_camellia_256_cbc();
156# endif
157 else if (**argv != '-' && dsaparams == NULL) {
158 dsaparams = *argv;
159 } else
160 goto bad;
161 argv++;
162 argc--;
163 }
d02b48c6 164
ae5c8664
MC
165 if (dsaparams == NULL) {
166 bad:
167 BIO_printf(bio_err, "usage: gendsa [args] dsaparam-file\n");
168 BIO_printf(bio_err, " -out file - output the key to 'file'\n");
169# ifndef OPENSSL_NO_DES
170 BIO_printf(bio_err,
171 " -des - encrypt the generated key with DES in cbc mode\n");
172 BIO_printf(bio_err,
173 " -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
174# endif
175# ifndef OPENSSL_NO_IDEA
176 BIO_printf(bio_err,
177 " -idea - encrypt the generated key with IDEA in cbc mode\n");
178# endif
179# ifndef OPENSSL_NO_SEED
180 BIO_printf(bio_err, " -seed\n");
181 BIO_printf(bio_err,
182 " encrypt PEM output with cbc seed\n");
183# endif
184# ifndef OPENSSL_NO_AES
185 BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
186 BIO_printf(bio_err,
187 " encrypt PEM output with cbc aes\n");
188# endif
189# ifndef OPENSSL_NO_CAMELLIA
190 BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
191 BIO_printf(bio_err,
192 " encrypt PEM output with cbc camellia\n");
193# endif
194# ifndef OPENSSL_NO_ENGINE
195 BIO_printf(bio_err,
196 " -engine e - use engine e, possibly a hardware device.\n");
197# endif
198 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
199 LIST_SEPARATOR_CHAR);
200 BIO_printf(bio_err,
201 " - load the file (or the files in the directory) into\n");
202 BIO_printf(bio_err, " the random number generator\n");
203 BIO_printf(bio_err, " dsaparam-file\n");
204 BIO_printf(bio_err,
205 " - a DSA parameter file as generated by the dsaparam command\n");
206 goto end;
207 }
aa01b82c 208 e = setup_engine(bio_err, engine, 0);
5270e702 209
ae5c8664
MC
210 if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
211 BIO_printf(bio_err, "Error getting password\n");
212 goto end;
213 }
a3fe382e 214
ae5c8664
MC
215 in = BIO_new(BIO_s_file());
216 if (!(BIO_read_filename(in, dsaparams))) {
217 perror(dsaparams);
218 goto end;
219 }
a3fe382e 220
ae5c8664
MC
221 if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) {
222 BIO_printf(bio_err, "unable to load DSA parameter file\n");
223 goto end;
224 }
225 BIO_free(in);
226 in = NULL;
d02b48c6 227
ae5c8664
MC
228 out = BIO_new(BIO_s_file());
229 if (out == NULL)
230 goto end;
d02b48c6 231
ae5c8664
MC
232 if (outfile == NULL) {
233 BIO_set_fp(out, stdout, BIO_NOCLOSE);
234# ifdef OPENSSL_SYS_VMS
235 {
236 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
237 out = BIO_push(tmpbio, out);
238 }
239# endif
240 } else {
241 if (BIO_write_filename(out, outfile) <= 0) {
242 perror(outfile);
243 goto end;
244 }
245 }
d02b48c6 246
ae5c8664
MC
247 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL) {
248 BIO_printf(bio_err,
249 "warning, not much extra random data, consider using the -rand option\n");
250 }
251 if (inrand != NULL)
252 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
253 app_RAND_load_files(inrand));
d02b48c6 254
ae5c8664
MC
255 BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(dsa->p));
256 if (!DSA_generate_key(dsa))
257 goto end;
d02b48c6 258
ae5c8664 259 app_RAND_write_file(NULL, bio_err);
d02b48c6 260
ae5c8664
MC
261 if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout))
262 goto end;
263 ret = 0;
264 end:
265 if (ret != 0)
266 ERR_print_errors(bio_err);
267 if (in != NULL)
268 BIO_free(in);
269 if (out != NULL)
270 BIO_free_all(out);
271 if (dsa != NULL)
272 DSA_free(dsa);
0df1caa7 273 release_engine(e);
ae5c8664
MC
274 if (passout)
275 OPENSSL_free(passout);
276 apps_shutdown();
277 OPENSSL_EXIT(ret);
278}
279#else /* !OPENSSL_NO_DSA */
7134507d
DSH
280
281# if PEDANTIC
ae5c8664 282static void *dummy = &dummy;
7134507d
DSH
283# endif
284
f5d7a031 285#endif