]>
Commit | Line | Data |
---|---|---|
58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
0f113f3e | 58 | #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ |
5daec7ea | 59 | |
cf1b7d96 | 60 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
61 | # include <stdio.h> |
62 | # include <stdlib.h> | |
63 | # include <time.h> | |
64 | # include <string.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> | |
72 | ||
0f113f3e | 73 | # ifdef GENCB_TEST |
5daec7ea GT |
74 | |
75 | static int stop_keygen_flag = 0; | |
76 | ||
f92570f0 | 77 | static void timebomb_sigalarm(int foo) |
0f113f3e MC |
78 | { |
79 | stop_keygen_flag = 1; | |
80 | } | |
5daec7ea | 81 | |
0f113f3e | 82 | # endif |
5daec7ea | 83 | |
6d23cf97 | 84 | static int dsa_cb(int p, int n, BN_GENCB *cb); |
667ac4ec | 85 | |
7e1b7485 RS |
86 | typedef enum OPTION_choice { |
87 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
88 | OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C, | |
700b4a4a | 89 | OPT_NOOUT, OPT_GENKEY, OPT_RAND, OPT_ENGINE, |
7e1b7485 RS |
90 | OPT_TIMEBOMB |
91 | } OPTION_CHOICE; | |
92 | ||
93 | OPTIONS dsaparam_options[] = { | |
94 | {"help", OPT_HELP, '-', "Display this summary"}, | |
95 | {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"}, | |
96 | {"in", OPT_IN, '<', "Input file"}, | |
97 | {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"}, | |
98 | {"out", OPT_OUT, '>', "Output file"}, | |
99 | {"text", OPT_TEXT, '-', "Print as text"}, | |
100 | {"C", OPT_C, '-', "Output C code"}, | |
101 | {"noout", OPT_NOOUT, '-', "No output"}, | |
102 | {"genkey", OPT_GENKEY, '-', "Generate a DSA key"}, | |
103 | {"rand", OPT_RAND, 's', "Files to use for random number input"}, | |
7e1b7485 RS |
104 | # ifdef GENCB_TEST |
105 | {"timebomb", OPT_TIMEBOMB, 'p', "Interrupt keygen after 'pnum' seconds"}, | |
9c3bcfa0 RS |
106 | # endif |
107 | # ifndef OPENSSL_NO_ENGINE | |
108 | {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"}, | |
7e1b7485 RS |
109 | # endif |
110 | {NULL} | |
111 | }; | |
667ac4ec | 112 | |
7e1b7485 | 113 | int dsaparam_main(int argc, char **argv) |
0f113f3e MC |
114 | { |
115 | DSA *dsa = NULL; | |
0f113f3e | 116 | BIO *in = NULL, *out = NULL; |
0f113f3e | 117 | BN_GENCB *cb = NULL; |
700b4a4a | 118 | int numbits = -1, num = 0, genkey = 0, need_rand = 0; |
3b061a00 RS |
119 | int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0; |
120 | int ret = 1, i, text = 0, private = 0; | |
0f113f3e MC |
121 | # ifdef GENCB_TEST |
122 | int timebomb = 0; | |
123 | # endif | |
333b070e | 124 | char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL; |
7e1b7485 RS |
125 | OPTION_CHOICE o; |
126 | ||
127 | prog = opt_init(argc, argv, dsaparam_options); | |
128 | while ((o = opt_next()) != OPT_EOF) { | |
129 | switch (o) { | |
130 | case OPT_EOF: | |
131 | case OPT_ERR: | |
132 | opthelp: | |
133 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
134 | goto end; | |
135 | case OPT_HELP: | |
136 | opt_help(dsaparam_options); | |
137 | ret = 0; | |
138 | goto end; | |
139 | case OPT_INFORM: | |
140 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) | |
141 | goto opthelp; | |
142 | break; | |
143 | case OPT_IN: | |
144 | infile = opt_arg(); | |
145 | break; | |
146 | case OPT_OUTFORM: | |
147 | if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) | |
148 | goto opthelp; | |
149 | break; | |
150 | case OPT_OUT: | |
151 | outfile = opt_arg(); | |
152 | break; | |
153 | case OPT_ENGINE: | |
333b070e | 154 | (void)setup_engine(opt_arg(), 0); |
7e1b7485 RS |
155 | break; |
156 | case OPT_TIMEBOMB: | |
0f113f3e | 157 | # ifdef GENCB_TEST |
7e1b7485 RS |
158 | timebomb = atoi(opt_arg()); |
159 | break; | |
0f113f3e | 160 | # endif |
7e1b7485 | 161 | case OPT_TEXT: |
0f113f3e | 162 | text = 1; |
7e1b7485 RS |
163 | break; |
164 | case OPT_C: | |
0f113f3e | 165 | C = 1; |
7e1b7485 RS |
166 | break; |
167 | case OPT_GENKEY: | |
168 | genkey = need_rand = 1; | |
169 | break; | |
170 | case OPT_RAND: | |
171 | inrand = opt_arg(); | |
0f113f3e | 172 | need_rand = 1; |
7e1b7485 RS |
173 | break; |
174 | case OPT_NOOUT: | |
0f113f3e | 175 | noout = 1; |
7e1b7485 | 176 | break; |
0f113f3e | 177 | } |
0f113f3e | 178 | } |
7e1b7485 RS |
179 | argc = opt_num_rest(); |
180 | argv = opt_rest(); | |
0f113f3e | 181 | |
7e1b7485 | 182 | if (argc == 1) { |
bd4850df | 183 | if (!opt_int(argv[0], &num) || num < 0) |
7e1b7485 RS |
184 | goto end; |
185 | /* generate a key */ | |
186 | numbits = num; | |
187 | need_rand = 1; | |
0f113f3e | 188 | } |
3b061a00 | 189 | private = genkey ? 1 : 0; |
0f113f3e | 190 | |
bdd58d98 | 191 | in = bio_open_default(infile, 'r', informat); |
7e1b7485 RS |
192 | if (in == NULL) |
193 | goto end; | |
bdd58d98 | 194 | out = bio_open_owner(outfile, outformat, private); |
7e1b7485 | 195 | if (out == NULL) |
0f113f3e | 196 | goto end; |
0f113f3e | 197 | |
0f113f3e | 198 | if (need_rand) { |
7e1b7485 | 199 | app_RAND_load_file(NULL, (inrand != NULL)); |
0f113f3e MC |
200 | if (inrand != NULL) |
201 | BIO_printf(bio_err, "%ld semi-random bytes loaded\n", | |
202 | app_RAND_load_files(inrand)); | |
203 | } | |
204 | ||
205 | if (numbits > 0) { | |
206 | cb = BN_GENCB_new(); | |
96487cdd | 207 | if (cb == NULL) { |
0f113f3e MC |
208 | BIO_printf(bio_err, "Error allocating BN_GENCB object\n"); |
209 | goto end; | |
210 | } | |
211 | BN_GENCB_set(cb, dsa_cb, bio_err); | |
212 | assert(need_rand); | |
213 | dsa = DSA_new(); | |
96487cdd | 214 | if (dsa == NULL) { |
0f113f3e MC |
215 | BIO_printf(bio_err, "Error allocating DSA object\n"); |
216 | goto end; | |
217 | } | |
0f113f3e MC |
218 | BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", |
219 | num); | |
220 | BIO_printf(bio_err, "This could take some time\n"); | |
221 | # ifdef GENCB_TEST | |
222 | if (timebomb > 0) { | |
223 | struct sigaction act; | |
224 | act.sa_handler = timebomb_sigalarm; | |
225 | act.sa_flags = 0; | |
226 | BIO_printf(bio_err, | |
227 | "(though I'll stop it if not done within %d secs)\n", | |
228 | timebomb); | |
229 | if (sigaction(SIGALRM, &act, NULL) != 0) { | |
230 | BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n"); | |
231 | goto end; | |
232 | } | |
233 | alarm(timebomb); | |
234 | } | |
235 | # endif | |
236 | if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) { | |
237 | # ifdef GENCB_TEST | |
238 | if (stop_keygen_flag) { | |
239 | BIO_printf(bio_err, "DSA key generation time-stopped\n"); | |
240 | /* This is an asked-for behaviour! */ | |
241 | ret = 0; | |
242 | goto end; | |
243 | } | |
244 | # endif | |
245 | ERR_print_errors(bio_err); | |
246 | BIO_printf(bio_err, "Error, DSA key generation failed\n"); | |
247 | goto end; | |
248 | } | |
249 | } else if (informat == FORMAT_ASN1) | |
250 | dsa = d2i_DSAparams_bio(in, NULL); | |
7e1b7485 | 251 | else |
0f113f3e | 252 | dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); |
0f113f3e MC |
253 | if (dsa == NULL) { |
254 | BIO_printf(bio_err, "unable to load DSA parameters\n"); | |
255 | ERR_print_errors(bio_err); | |
256 | goto end; | |
257 | } | |
258 | ||
259 | if (text) { | |
260 | DSAparams_print(out, dsa); | |
261 | } | |
262 | ||
263 | if (C) { | |
68dc6824 RS |
264 | int len = BN_num_bytes(dsa->p); |
265 | int bits_p = BN_num_bits(dsa->p); | |
266 | unsigned char *data = app_malloc(len + 20, "BN space"); | |
0f113f3e | 267 | |
7e1b7485 RS |
268 | BIO_printf(bio_out, "DSA *get_dsa%d()\n{\n", bits_p); |
269 | print_bignum_var(bio_out, dsa->p, "dsap", len, data); | |
270 | print_bignum_var(bio_out, dsa->q, "dsaq", len, data); | |
271 | print_bignum_var(bio_out, dsa->g, "dsag", len, data); | |
272 | BIO_printf(bio_out, " DSA *dsa = DSA_new();\n" | |
273 | "\n"); | |
274 | BIO_printf(bio_out, " if (dsa == NULL)\n" | |
275 | " return NULL;\n"); | |
276 | BIO_printf(bio_out, " dsa->p = BN_bin2bn(dsap_%d, sizeof (dsap_%d), NULL);\n", | |
0f113f3e | 277 | bits_p, bits_p); |
7e1b7485 | 278 | BIO_printf(bio_out, " dsa->q = BN_bin2bn(dsaq_%d, sizeof (dsaq_%d), NULL);\n", |
0f113f3e | 279 | bits_p, bits_p); |
7e1b7485 | 280 | BIO_printf(bio_out, " dsa->g = BN_bin2bn(dsag_%d, sizeof (dsag_%d), NULL);\n", |
0f113f3e | 281 | bits_p, bits_p); |
7e1b7485 RS |
282 | BIO_printf(bio_out, " if (!dsa->p || !dsa->q || !dsa->g) {\n" |
283 | " DSA_free(dsa);\n" | |
284 | " return NULL;\n" | |
285 | " }\n" | |
286 | " return(dsa);\n}\n"); | |
0f113f3e MC |
287 | } |
288 | ||
289 | if (!noout) { | |
290 | if (outformat == FORMAT_ASN1) | |
291 | i = i2d_DSAparams_bio(out, dsa); | |
7e1b7485 | 292 | else |
0f113f3e | 293 | i = PEM_write_bio_DSAparams(out, dsa); |
0f113f3e MC |
294 | if (!i) { |
295 | BIO_printf(bio_err, "unable to write DSA parameters\n"); | |
296 | ERR_print_errors(bio_err); | |
297 | goto end; | |
298 | } | |
299 | } | |
300 | if (genkey) { | |
301 | DSA *dsakey; | |
302 | ||
303 | assert(need_rand); | |
304 | if ((dsakey = DSAparams_dup(dsa)) == NULL) | |
305 | goto end; | |
0f113f3e MC |
306 | if (!DSA_generate_key(dsakey)) { |
307 | ERR_print_errors(bio_err); | |
308 | DSA_free(dsakey); | |
309 | goto end; | |
310 | } | |
3b061a00 | 311 | assert(private); |
0f113f3e MC |
312 | if (outformat == FORMAT_ASN1) |
313 | i = i2d_DSAPrivateKey_bio(out, dsakey); | |
7e1b7485 | 314 | else |
0f113f3e MC |
315 | i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, |
316 | NULL); | |
0f113f3e MC |
317 | DSA_free(dsakey); |
318 | } | |
319 | if (need_rand) | |
7e1b7485 | 320 | app_RAND_write_file(NULL); |
0f113f3e MC |
321 | ret = 0; |
322 | end: | |
23a1d5e9 | 323 | BN_GENCB_free(cb); |
ca3a82c3 RS |
324 | BIO_free(in); |
325 | BIO_free_all(out); | |
d6407083 | 326 | DSA_free(dsa); |
7e1b7485 | 327 | return (ret); |
0f113f3e | 328 | } |
d02b48c6 | 329 | |
6d23cf97 | 330 | static int dsa_cb(int p, int n, BN_GENCB *cb) |
0f113f3e MC |
331 | { |
332 | char c = '*'; | |
333 | ||
334 | if (p == 0) | |
335 | c = '.'; | |
336 | if (p == 1) | |
337 | c = '+'; | |
338 | if (p == 2) | |
339 | c = '*'; | |
340 | if (p == 3) | |
341 | c = '\n'; | |
342 | BIO_write(BN_GENCB_get_arg(cb), &c, 1); | |
343 | (void)BIO_flush(BN_GENCB_get_arg(cb)); | |
344 | # ifdef GENCB_TEST | |
345 | if (stop_keygen_flag) | |
346 | return 0; | |
347 | # endif | |
348 | return 1; | |
349 | } | |
350 | #else /* !OPENSSL_NO_DSA */ | |
d4f0339c DSH |
351 | |
352 | # if PEDANTIC | |
0f113f3e | 353 | static void *dummy = &dummy; |
d4f0339c DSH |
354 | # endif |
355 | ||
f5d7a031 | 356 | #endif |