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d02b48c6 | 1 | /* apps/dsaparam.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 RE |
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 RE |
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 RE |
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 MC |
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 | */ | |
5daec7ea | 64 | #ifdef OPENSSL_NO_DEPRECATED |
ae5c8664 | 65 | # undef OPENSSL_NO_DEPRECATED |
5daec7ea GT |
66 | #endif |
67 | ||
cf1b7d96 | 68 | #ifndef OPENSSL_NO_DSA |
ae5c8664 MC |
69 | # include <assert.h> |
70 | # include <stdio.h> | |
71 | # include <stdlib.h> | |
72 | # include <time.h> | |
73 | # include <string.h> | |
74 | # include "apps.h" | |
75 | # include <openssl/bio.h> | |
76 | # include <openssl/err.h> | |
77 | # include <openssl/bn.h> | |
78 | # include <openssl/dsa.h> | |
79 | # include <openssl/x509.h> | |
80 | # include <openssl/pem.h> | |
81 | ||
82 | # undef PROG | |
83 | # define PROG dsaparam_main | |
d02b48c6 | 84 | |
6977c7e2 | 85 | /*- |
ae5c8664 | 86 | * -inform arg - input format - default PEM (DER or PEM) |
d02b48c6 | 87 | * -outform arg - output format - default PEM |
ae5c8664 MC |
88 | * -in arg - input file - default stdin |
89 | * -out arg - output file - default stdout | |
d02b48c6 RE |
90 | * -noout |
91 | * -text | |
92 | * -C | |
93 | * -noout | |
dfeab068 | 94 | * -genkey |
5daec7ea GT |
95 | * #ifdef GENCB_TEST |
96 | * -timebomb n - interrupt keygen after <n> seconds | |
97 | * #endif | |
d02b48c6 RE |
98 | */ |
99 | ||
ae5c8664 | 100 | # ifdef GENCB_TEST |
5daec7ea GT |
101 | |
102 | static int stop_keygen_flag = 0; | |
103 | ||
f92570f0 | 104 | static void timebomb_sigalarm(int foo) |
ae5c8664 MC |
105 | { |
106 | stop_keygen_flag = 1; | |
107 | } | |
5daec7ea | 108 | |
ae5c8664 | 109 | # endif |
5daec7ea GT |
110 | |
111 | static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb); | |
667ac4ec RE |
112 | |
113 | int MAIN(int, char **); | |
114 | ||
6b691a5c | 115 | int MAIN(int argc, char **argv) |
ae5c8664 MC |
116 | { |
117 | DSA *dsa = NULL; | |
118 | int i, badops = 0, text = 0; | |
119 | BIO *in = NULL, *out = NULL; | |
120 | int informat, outformat, noout = 0, C = 0, ret = 1; | |
121 | char *infile, *outfile, *prog, *inrand = NULL; | |
122 | int numbits = -1, num, genkey = 0; | |
123 | int need_rand = 0; | |
ae5c8664 | 124 | char *engine = NULL; |
aa01b82c | 125 | ENGINE *e = NULL; |
ae5c8664 MC |
126 | # ifdef GENCB_TEST |
127 | int timebomb = 0; | |
128 | # endif | |
d02b48c6 | 129 | |
ae5c8664 MC |
130 | apps_startup(); |
131 | ||
132 | if (bio_err == NULL) | |
133 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
134 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
135 | ||
136 | if (!load_config(bio_err, NULL)) | |
137 | goto end; | |
138 | ||
139 | infile = NULL; | |
140 | outfile = NULL; | |
141 | informat = FORMAT_PEM; | |
142 | outformat = FORMAT_PEM; | |
143 | ||
144 | prog = argv[0]; | |
145 | argc--; | |
146 | argv++; | |
147 | while (argc >= 1) { | |
148 | if (strcmp(*argv, "-inform") == 0) { | |
149 | if (--argc < 1) | |
150 | goto bad; | |
151 | informat = str2fmt(*(++argv)); | |
152 | } else if (strcmp(*argv, "-outform") == 0) { | |
153 | if (--argc < 1) | |
154 | goto bad; | |
155 | outformat = str2fmt(*(++argv)); | |
156 | } else if (strcmp(*argv, "-in") == 0) { | |
157 | if (--argc < 1) | |
158 | goto bad; | |
159 | infile = *(++argv); | |
160 | } else if (strcmp(*argv, "-out") == 0) { | |
161 | if (--argc < 1) | |
162 | goto bad; | |
163 | outfile = *(++argv); | |
164 | } | |
165 | # ifndef OPENSSL_NO_ENGINE | |
166 | else if (strcmp(*argv, "-engine") == 0) { | |
167 | if (--argc < 1) | |
168 | goto bad; | |
169 | engine = *(++argv); | |
170 | } | |
171 | # endif | |
172 | # ifdef GENCB_TEST | |
173 | else if (strcmp(*argv, "-timebomb") == 0) { | |
174 | if (--argc < 1) | |
175 | goto bad; | |
176 | timebomb = atoi(*(++argv)); | |
177 | } | |
178 | # endif | |
179 | else if (strcmp(*argv, "-text") == 0) | |
180 | text = 1; | |
181 | else if (strcmp(*argv, "-C") == 0) | |
182 | C = 1; | |
183 | else if (strcmp(*argv, "-genkey") == 0) { | |
184 | genkey = 1; | |
185 | need_rand = 1; | |
186 | } else if (strcmp(*argv, "-rand") == 0) { | |
187 | if (--argc < 1) | |
188 | goto bad; | |
189 | inrand = *(++argv); | |
190 | need_rand = 1; | |
191 | } else if (strcmp(*argv, "-noout") == 0) | |
192 | noout = 1; | |
193 | else if (sscanf(*argv, "%d", &num) == 1) { | |
194 | /* generate a key */ | |
195 | numbits = num; | |
196 | need_rand = 1; | |
197 | } else { | |
198 | BIO_printf(bio_err, "unknown option %s\n", *argv); | |
199 | badops = 1; | |
200 | break; | |
201 | } | |
202 | argc--; | |
203 | argv++; | |
204 | } | |
205 | ||
206 | if (badops) { | |
207 | bad: | |
208 | BIO_printf(bio_err, "%s [options] [bits] <infile >outfile\n", prog); | |
209 | BIO_printf(bio_err, "where options are\n"); | |
210 | BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); | |
211 | BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); | |
212 | BIO_printf(bio_err, " -in arg input file\n"); | |
213 | BIO_printf(bio_err, " -out arg output file\n"); | |
214 | BIO_printf(bio_err, " -text print as text\n"); | |
215 | BIO_printf(bio_err, " -C Output C code\n"); | |
216 | BIO_printf(bio_err, " -noout no output\n"); | |
217 | BIO_printf(bio_err, " -genkey generate a DSA key\n"); | |
218 | BIO_printf(bio_err, | |
219 | " -rand files to use for random number input\n"); | |
220 | # ifndef OPENSSL_NO_ENGINE | |
221 | BIO_printf(bio_err, | |
222 | " -engine e use engine e, possibly a hardware device.\n"); | |
223 | # endif | |
224 | # ifdef GENCB_TEST | |
225 | BIO_printf(bio_err, | |
226 | " -timebomb n interrupt keygen after <n> seconds\n"); | |
227 | # endif | |
228 | BIO_printf(bio_err, | |
229 | " number number of bits to use for generating private key\n"); | |
230 | goto end; | |
231 | } | |
232 | ||
233 | ERR_load_crypto_strings(); | |
234 | ||
235 | in = BIO_new(BIO_s_file()); | |
236 | out = BIO_new(BIO_s_file()); | |
237 | if ((in == NULL) || (out == NULL)) { | |
238 | ERR_print_errors(bio_err); | |
239 | goto end; | |
240 | } | |
241 | ||
242 | if (infile == NULL) | |
243 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
244 | else { | |
245 | if (BIO_read_filename(in, infile) <= 0) { | |
246 | perror(infile); | |
247 | goto end; | |
248 | } | |
249 | } | |
250 | if (outfile == NULL) { | |
251 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
252 | # ifdef OPENSSL_SYS_VMS | |
253 | { | |
254 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
255 | out = BIO_push(tmpbio, out); | |
256 | } | |
257 | # endif | |
258 | } else { | |
259 | if (BIO_write_filename(out, outfile) <= 0) { | |
260 | perror(outfile); | |
261 | goto end; | |
262 | } | |
263 | } | |
264 | ||
aa01b82c | 265 | e = setup_engine(bio_err, engine, 0); |
5270e702 | 266 | |
ae5c8664 MC |
267 | if (need_rand) { |
268 | app_RAND_load_file(NULL, bio_err, (inrand != NULL)); | |
269 | if (inrand != NULL) | |
270 | BIO_printf(bio_err, "%ld semi-random bytes loaded\n", | |
271 | app_RAND_load_files(inrand)); | |
272 | } | |
273 | ||
274 | if (numbits > 0) { | |
275 | BN_GENCB cb; | |
276 | BN_GENCB_set(&cb, dsa_cb, bio_err); | |
277 | assert(need_rand); | |
278 | dsa = DSA_new(); | |
279 | if (!dsa) { | |
280 | BIO_printf(bio_err, "Error allocating DSA object\n"); | |
281 | goto end; | |
282 | } | |
283 | BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", | |
284 | num); | |
285 | BIO_printf(bio_err, "This could take some time\n"); | |
286 | # ifdef GENCB_TEST | |
287 | if (timebomb > 0) { | |
288 | struct sigaction act; | |
289 | act.sa_handler = timebomb_sigalarm; | |
290 | act.sa_flags = 0; | |
291 | BIO_printf(bio_err, | |
292 | "(though I'll stop it if not done within %d secs)\n", | |
293 | timebomb); | |
294 | if (sigaction(SIGALRM, &act, NULL) != 0) { | |
295 | BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n"); | |
296 | goto end; | |
297 | } | |
298 | alarm(timebomb); | |
299 | } | |
300 | # endif | |
301 | if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, &cb)) { | |
302 | # ifdef GENCB_TEST | |
303 | if (stop_keygen_flag) { | |
304 | BIO_printf(bio_err, "DSA key generation time-stopped\n"); | |
305 | /* This is an asked-for behaviour! */ | |
306 | ret = 0; | |
307 | goto end; | |
308 | } | |
309 | # endif | |
310 | ERR_print_errors(bio_err); | |
311 | BIO_printf(bio_err, "Error, DSA key generation failed\n"); | |
312 | goto end; | |
313 | } | |
314 | } else if (informat == FORMAT_ASN1) | |
315 | dsa = d2i_DSAparams_bio(in, NULL); | |
316 | else if (informat == FORMAT_PEM) | |
317 | dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); | |
318 | else { | |
319 | BIO_printf(bio_err, "bad input format specified\n"); | |
320 | goto end; | |
321 | } | |
322 | if (dsa == NULL) { | |
323 | BIO_printf(bio_err, "unable to load DSA parameters\n"); | |
324 | ERR_print_errors(bio_err); | |
325 | goto end; | |
326 | } | |
327 | ||
328 | if (text) { | |
329 | DSAparams_print(out, dsa); | |
330 | } | |
331 | ||
332 | if (C) { | |
333 | unsigned char *data; | |
334 | int l, len, bits_p; | |
335 | ||
336 | len = BN_num_bytes(dsa->p); | |
337 | bits_p = BN_num_bits(dsa->p); | |
338 | data = (unsigned char *)OPENSSL_malloc(len + 20); | |
339 | if (data == NULL) { | |
340 | perror("OPENSSL_malloc"); | |
341 | goto end; | |
342 | } | |
343 | l = BN_bn2bin(dsa->p, data); | |
344 | printf("static unsigned char dsa%d_p[]={", bits_p); | |
345 | for (i = 0; i < l; i++) { | |
346 | if ((i % 12) == 0) | |
347 | printf("\n\t"); | |
348 | printf("0x%02X,", data[i]); | |
349 | } | |
350 | printf("\n\t};\n"); | |
351 | ||
352 | l = BN_bn2bin(dsa->q, data); | |
353 | printf("static unsigned char dsa%d_q[]={", bits_p); | |
354 | for (i = 0; i < l; i++) { | |
355 | if ((i % 12) == 0) | |
356 | printf("\n\t"); | |
357 | printf("0x%02X,", data[i]); | |
358 | } | |
359 | printf("\n\t};\n"); | |
360 | ||
361 | l = BN_bn2bin(dsa->g, data); | |
362 | printf("static unsigned char dsa%d_g[]={", bits_p); | |
363 | for (i = 0; i < l; i++) { | |
364 | if ((i % 12) == 0) | |
365 | printf("\n\t"); | |
366 | printf("0x%02X,", data[i]); | |
367 | } | |
368 | printf("\n\t};\n\n"); | |
369 | ||
370 | printf("DSA *get_dsa%d()\n\t{\n", bits_p); | |
371 | printf("\tDSA *dsa;\n\n"); | |
372 | printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n"); | |
373 | printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n", | |
374 | bits_p, bits_p); | |
375 | printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n", | |
376 | bits_p, bits_p); | |
377 | printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n", | |
378 | bits_p, bits_p); | |
379 | printf | |
380 | ("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n"); | |
381 | printf("\t\t{ DSA_free(dsa); return(NULL); }\n"); | |
382 | printf("\treturn(dsa);\n\t}\n"); | |
383 | } | |
384 | ||
3ffc95b1 BE |
385 | if (outformat == FORMAT_ASN1 && genkey) |
386 | noout = 1; | |
387 | ||
ae5c8664 MC |
388 | if (!noout) { |
389 | if (outformat == FORMAT_ASN1) | |
390 | i = i2d_DSAparams_bio(out, dsa); | |
391 | else if (outformat == FORMAT_PEM) | |
392 | i = PEM_write_bio_DSAparams(out, dsa); | |
393 | else { | |
394 | BIO_printf(bio_err, "bad output format specified for outfile\n"); | |
395 | goto end; | |
396 | } | |
397 | if (!i) { | |
398 | BIO_printf(bio_err, "unable to write DSA parameters\n"); | |
399 | ERR_print_errors(bio_err); | |
400 | goto end; | |
401 | } | |
402 | } | |
403 | if (genkey) { | |
404 | DSA *dsakey; | |
405 | ||
406 | assert(need_rand); | |
407 | if ((dsakey = DSAparams_dup(dsa)) == NULL) | |
408 | goto end; | |
409 | if (!DSA_generate_key(dsakey)) { | |
410 | ERR_print_errors(bio_err); | |
411 | DSA_free(dsakey); | |
412 | goto end; | |
413 | } | |
414 | if (outformat == FORMAT_ASN1) | |
415 | i = i2d_DSAPrivateKey_bio(out, dsakey); | |
416 | else if (outformat == FORMAT_PEM) | |
417 | i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, | |
418 | NULL); | |
419 | else { | |
420 | BIO_printf(bio_err, "bad output format specified for outfile\n"); | |
421 | DSA_free(dsakey); | |
422 | goto end; | |
423 | } | |
424 | DSA_free(dsakey); | |
425 | } | |
426 | if (need_rand) | |
427 | app_RAND_write_file(NULL, bio_err); | |
428 | ret = 0; | |
429 | end: | |
430 | if (in != NULL) | |
431 | BIO_free(in); | |
432 | if (out != NULL) | |
433 | BIO_free_all(out); | |
434 | if (dsa != NULL) | |
435 | DSA_free(dsa); | |
0df1caa7 | 436 | release_engine(e); |
ae5c8664 MC |
437 | apps_shutdown(); |
438 | OPENSSL_EXIT(ret); | |
439 | } | |
d02b48c6 | 440 | |
5daec7ea | 441 | static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb) |
ae5c8664 MC |
442 | { |
443 | char c = '*'; | |
444 | ||
445 | if (p == 0) | |
446 | c = '.'; | |
447 | if (p == 1) | |
448 | c = '+'; | |
449 | if (p == 2) | |
450 | c = '*'; | |
451 | if (p == 3) | |
452 | c = '\n'; | |
453 | BIO_write(cb->arg, &c, 1); | |
454 | (void)BIO_flush(cb->arg); | |
455 | # ifdef LINT | |
456 | p = n; | |
457 | # endif | |
458 | # ifdef GENCB_TEST | |
459 | if (stop_keygen_flag) | |
460 | return 0; | |
461 | # endif | |
462 | return 1; | |
463 | } | |
464 | #else /* !OPENSSL_NO_DSA */ | |
7134507d DSH |
465 | |
466 | # if PEDANTIC | |
ae5c8664 | 467 | static void *dummy = &dummy; |
7134507d DSH |
468 | # endif |
469 | ||
f5d7a031 | 470 | #endif |