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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. | |
0f113f3e | 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). | |
0f113f3e | 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. | |
0f113f3e | 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 :-). | |
0f113f3e | 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)" | |
0f113f3e | 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. | |
0f113f3e | 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 | ||
0f113f3e | 59 | #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ |
5daec7ea | 60 | |
cf1b7d96 | 61 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
62 | # include <assert.h> |
63 | # include <stdio.h> | |
64 | # include <stdlib.h> | |
65 | # include <time.h> | |
66 | # include <string.h> | |
67 | # include "apps.h" | |
68 | # include <openssl/bio.h> | |
69 | # include <openssl/err.h> | |
70 | # include <openssl/bn.h> | |
71 | # include <openssl/dsa.h> | |
72 | # include <openssl/x509.h> | |
73 | # include <openssl/pem.h> | |
74 | ||
75 | # undef PROG | |
76 | # define PROG dsaparam_main | |
d02b48c6 | 77 | |
1d97c843 | 78 | /*- |
0f113f3e | 79 | * -inform arg - input format - default PEM (DER or PEM) |
d02b48c6 | 80 | * -outform arg - output format - default PEM |
0f113f3e MC |
81 | * -in arg - input file - default stdin |
82 | * -out arg - output file - default stdout | |
d02b48c6 RE |
83 | * -noout |
84 | * -text | |
85 | * -C | |
86 | * -noout | |
dfeab068 | 87 | * -genkey |
5daec7ea GT |
88 | * #ifdef GENCB_TEST |
89 | * -timebomb n - interrupt keygen after <n> seconds | |
90 | * #endif | |
d02b48c6 RE |
91 | */ |
92 | ||
0f113f3e | 93 | # ifdef GENCB_TEST |
5daec7ea GT |
94 | |
95 | static int stop_keygen_flag = 0; | |
96 | ||
f92570f0 | 97 | static void timebomb_sigalarm(int foo) |
0f113f3e MC |
98 | { |
99 | stop_keygen_flag = 1; | |
100 | } | |
5daec7ea | 101 | |
0f113f3e | 102 | # endif |
5daec7ea | 103 | |
6d23cf97 | 104 | static int dsa_cb(int p, int n, BN_GENCB *cb); |
667ac4ec RE |
105 | |
106 | int MAIN(int, char **); | |
107 | ||
6b691a5c | 108 | int MAIN(int argc, char **argv) |
0f113f3e MC |
109 | { |
110 | DSA *dsa = NULL; | |
111 | int i, badops = 0, text = 0; | |
112 | BIO *in = NULL, *out = NULL; | |
113 | int informat, outformat, noout = 0, C = 0, ret = 1; | |
114 | char *infile, *outfile, *prog, *inrand = NULL; | |
115 | int numbits = -1, num, genkey = 0; | |
116 | int need_rand = 0; | |
117 | int non_fips_allow = 0; | |
118 | BN_GENCB *cb = NULL; | |
119 | # ifndef OPENSSL_NO_ENGINE | |
120 | char *engine = NULL; | |
121 | # endif | |
122 | # ifdef GENCB_TEST | |
123 | int timebomb = 0; | |
124 | # endif | |
d02b48c6 | 125 | |
0f113f3e MC |
126 | apps_startup(); |
127 | ||
128 | if (bio_err == NULL) | |
129 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
130 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
131 | ||
132 | if (!load_config(bio_err, NULL)) | |
133 | goto end; | |
134 | ||
135 | infile = NULL; | |
136 | outfile = NULL; | |
137 | informat = FORMAT_PEM; | |
138 | outformat = FORMAT_PEM; | |
139 | ||
140 | prog = argv[0]; | |
141 | argc--; | |
142 | argv++; | |
143 | while (argc >= 1) { | |
144 | if (strcmp(*argv, "-inform") == 0) { | |
145 | if (--argc < 1) | |
146 | goto bad; | |
147 | informat = str2fmt(*(++argv)); | |
148 | } else if (strcmp(*argv, "-outform") == 0) { | |
149 | if (--argc < 1) | |
150 | goto bad; | |
151 | outformat = str2fmt(*(++argv)); | |
152 | } else if (strcmp(*argv, "-in") == 0) { | |
153 | if (--argc < 1) | |
154 | goto bad; | |
155 | infile = *(++argv); | |
156 | } else if (strcmp(*argv, "-out") == 0) { | |
157 | if (--argc < 1) | |
158 | goto bad; | |
159 | outfile = *(++argv); | |
160 | } | |
161 | # ifndef OPENSSL_NO_ENGINE | |
162 | else if (strcmp(*argv, "-engine") == 0) { | |
163 | if (--argc < 1) | |
164 | goto bad; | |
165 | engine = *(++argv); | |
166 | } | |
167 | # endif | |
168 | # ifdef GENCB_TEST | |
169 | else if (strcmp(*argv, "-timebomb") == 0) { | |
170 | if (--argc < 1) | |
171 | goto bad; | |
172 | timebomb = atoi(*(++argv)); | |
173 | } | |
174 | # endif | |
175 | else if (strcmp(*argv, "-text") == 0) | |
176 | text = 1; | |
177 | else if (strcmp(*argv, "-C") == 0) | |
178 | C = 1; | |
179 | else if (strcmp(*argv, "-genkey") == 0) { | |
180 | genkey = 1; | |
181 | need_rand = 1; | |
182 | } else if (strcmp(*argv, "-rand") == 0) { | |
183 | if (--argc < 1) | |
184 | goto bad; | |
185 | inrand = *(++argv); | |
186 | need_rand = 1; | |
187 | } else if (strcmp(*argv, "-noout") == 0) | |
188 | noout = 1; | |
189 | else if (strcmp(*argv, "-non-fips-allow") == 0) | |
190 | non_fips_allow = 1; | |
191 | else if (sscanf(*argv, "%d", &num) == 1) { | |
192 | /* generate a key */ | |
193 | numbits = num; | |
194 | need_rand = 1; | |
195 | } else { | |
196 | BIO_printf(bio_err, "unknown option %s\n", *argv); | |
197 | badops = 1; | |
198 | break; | |
199 | } | |
200 | argc--; | |
201 | argv++; | |
202 | } | |
203 | ||
204 | if (badops) { | |
205 | bad: | |
206 | BIO_printf(bio_err, "%s [options] [bits] <infile >outfile\n", prog); | |
207 | BIO_printf(bio_err, "where options are\n"); | |
208 | BIO_printf(bio_err, " -inform arg input format - DER or PEM\n"); | |
209 | BIO_printf(bio_err, " -outform arg output format - DER or PEM\n"); | |
210 | BIO_printf(bio_err, " -in arg input file\n"); | |
211 | BIO_printf(bio_err, " -out arg output file\n"); | |
212 | BIO_printf(bio_err, " -text print as text\n"); | |
213 | BIO_printf(bio_err, " -C Output C code\n"); | |
214 | BIO_printf(bio_err, " -noout no output\n"); | |
215 | BIO_printf(bio_err, " -genkey generate a DSA key\n"); | |
216 | BIO_printf(bio_err, | |
217 | " -rand files to use for random number input\n"); | |
218 | # ifndef OPENSSL_NO_ENGINE | |
219 | BIO_printf(bio_err, | |
220 | " -engine e use engine e, possibly a hardware device.\n"); | |
221 | # endif | |
222 | # ifdef GENCB_TEST | |
223 | BIO_printf(bio_err, | |
224 | " -timebomb n interrupt keygen after <n> seconds\n"); | |
225 | # endif | |
226 | BIO_printf(bio_err, | |
227 | " number number of bits to use for generating private key\n"); | |
228 | goto end; | |
229 | } | |
230 | ||
231 | ERR_load_crypto_strings(); | |
232 | ||
233 | in = BIO_new(BIO_s_file()); | |
234 | out = BIO_new(BIO_s_file()); | |
235 | if ((in == NULL) || (out == NULL)) { | |
236 | ERR_print_errors(bio_err); | |
237 | goto end; | |
238 | } | |
239 | ||
240 | if (infile == NULL) | |
241 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
242 | else { | |
243 | if (BIO_read_filename(in, infile) <= 0) { | |
244 | perror(infile); | |
245 | goto end; | |
246 | } | |
247 | } | |
248 | if (outfile == NULL) { | |
249 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
250 | # ifdef OPENSSL_SYS_VMS | |
251 | { | |
252 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
253 | out = BIO_push(tmpbio, out); | |
254 | } | |
255 | # endif | |
256 | } else { | |
257 | if (BIO_write_filename(out, outfile) <= 0) { | |
258 | perror(outfile); | |
259 | goto end; | |
260 | } | |
261 | } | |
262 | ||
263 | # ifndef OPENSSL_NO_ENGINE | |
264 | setup_engine(bio_err, engine, 0); | |
265 | # endif | |
5270e702 | 266 | |
0f113f3e 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 | cb = BN_GENCB_new(); | |
276 | if (!cb) { | |
277 | BIO_printf(bio_err, "Error allocating BN_GENCB object\n"); | |
278 | goto end; | |
279 | } | |
280 | BN_GENCB_set(cb, dsa_cb, bio_err); | |
281 | assert(need_rand); | |
282 | dsa = DSA_new(); | |
283 | if (!dsa) { | |
284 | BIO_printf(bio_err, "Error allocating DSA object\n"); | |
285 | goto end; | |
286 | } | |
287 | if (non_fips_allow) | |
288 | dsa->flags |= DSA_FLAG_NON_FIPS_ALLOW; | |
289 | BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n", | |
290 | num); | |
291 | BIO_printf(bio_err, "This could take some time\n"); | |
292 | # ifdef GENCB_TEST | |
293 | if (timebomb > 0) { | |
294 | struct sigaction act; | |
295 | act.sa_handler = timebomb_sigalarm; | |
296 | act.sa_flags = 0; | |
297 | BIO_printf(bio_err, | |
298 | "(though I'll stop it if not done within %d secs)\n", | |
299 | timebomb); | |
300 | if (sigaction(SIGALRM, &act, NULL) != 0) { | |
301 | BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n"); | |
302 | goto end; | |
303 | } | |
304 | alarm(timebomb); | |
305 | } | |
306 | # endif | |
307 | if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) { | |
308 | # ifdef GENCB_TEST | |
309 | if (stop_keygen_flag) { | |
310 | BIO_printf(bio_err, "DSA key generation time-stopped\n"); | |
311 | /* This is an asked-for behaviour! */ | |
312 | ret = 0; | |
313 | goto end; | |
314 | } | |
315 | # endif | |
316 | ERR_print_errors(bio_err); | |
317 | BIO_printf(bio_err, "Error, DSA key generation failed\n"); | |
318 | goto end; | |
319 | } | |
320 | } else if (informat == FORMAT_ASN1) | |
321 | dsa = d2i_DSAparams_bio(in, NULL); | |
322 | else if (informat == FORMAT_PEM) | |
323 | dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL); | |
324 | else { | |
325 | BIO_printf(bio_err, "bad input format specified\n"); | |
326 | goto end; | |
327 | } | |
328 | if (dsa == NULL) { | |
329 | BIO_printf(bio_err, "unable to load DSA parameters\n"); | |
330 | ERR_print_errors(bio_err); | |
331 | goto end; | |
332 | } | |
333 | ||
334 | if (text) { | |
335 | DSAparams_print(out, dsa); | |
336 | } | |
337 | ||
338 | if (C) { | |
339 | unsigned char *data; | |
340 | int l, len, bits_p; | |
341 | ||
342 | len = BN_num_bytes(dsa->p); | |
343 | bits_p = BN_num_bits(dsa->p); | |
344 | data = (unsigned char *)OPENSSL_malloc(len + 20); | |
345 | if (data == NULL) { | |
346 | perror("OPENSSL_malloc"); | |
347 | goto end; | |
348 | } | |
349 | l = BN_bn2bin(dsa->p, data); | |
350 | printf("static unsigned char dsa%d_p[]={", bits_p); | |
351 | for (i = 0; i < l; i++) { | |
352 | if ((i % 12) == 0) | |
353 | printf("\n\t"); | |
354 | printf("0x%02X,", data[i]); | |
355 | } | |
356 | printf("\n\t};\n"); | |
357 | ||
358 | l = BN_bn2bin(dsa->q, data); | |
359 | printf("static unsigned char dsa%d_q[]={", bits_p); | |
360 | for (i = 0; i < l; i++) { | |
361 | if ((i % 12) == 0) | |
362 | printf("\n\t"); | |
363 | printf("0x%02X,", data[i]); | |
364 | } | |
365 | printf("\n\t};\n"); | |
366 | ||
367 | l = BN_bn2bin(dsa->g, data); | |
368 | printf("static unsigned char dsa%d_g[]={", bits_p); | |
369 | for (i = 0; i < l; i++) { | |
370 | if ((i % 12) == 0) | |
371 | printf("\n\t"); | |
372 | printf("0x%02X,", data[i]); | |
373 | } | |
374 | printf("\n\t};\n\n"); | |
375 | ||
376 | printf("DSA *get_dsa%d()\n\t{\n", bits_p); | |
377 | printf("\tDSA *dsa;\n\n"); | |
378 | printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n"); | |
379 | printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n", | |
380 | bits_p, bits_p); | |
381 | printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n", | |
382 | bits_p, bits_p); | |
383 | printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n", | |
384 | bits_p, bits_p); | |
385 | printf | |
386 | ("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n"); | |
387 | printf("\t\t{ DSA_free(dsa); return(NULL); }\n"); | |
388 | printf("\treturn(dsa);\n\t}\n"); | |
389 | } | |
390 | ||
391 | if (!noout) { | |
392 | if (outformat == FORMAT_ASN1) | |
393 | i = i2d_DSAparams_bio(out, dsa); | |
394 | else if (outformat == FORMAT_PEM) | |
395 | i = PEM_write_bio_DSAparams(out, dsa); | |
396 | else { | |
397 | BIO_printf(bio_err, "bad output format specified for outfile\n"); | |
398 | goto end; | |
399 | } | |
400 | if (!i) { | |
401 | BIO_printf(bio_err, "unable to write DSA parameters\n"); | |
402 | ERR_print_errors(bio_err); | |
403 | goto end; | |
404 | } | |
405 | } | |
406 | if (genkey) { | |
407 | DSA *dsakey; | |
408 | ||
409 | assert(need_rand); | |
410 | if ((dsakey = DSAparams_dup(dsa)) == NULL) | |
411 | goto end; | |
412 | if (non_fips_allow) | |
413 | dsakey->flags |= DSA_FLAG_NON_FIPS_ALLOW; | |
414 | if (!DSA_generate_key(dsakey)) { | |
415 | ERR_print_errors(bio_err); | |
416 | DSA_free(dsakey); | |
417 | goto end; | |
418 | } | |
419 | if (outformat == FORMAT_ASN1) | |
420 | i = i2d_DSAPrivateKey_bio(out, dsakey); | |
421 | else if (outformat == FORMAT_PEM) | |
422 | i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, | |
423 | NULL); | |
424 | else { | |
425 | BIO_printf(bio_err, "bad output format specified for outfile\n"); | |
426 | DSA_free(dsakey); | |
427 | goto end; | |
428 | } | |
429 | DSA_free(dsakey); | |
430 | } | |
431 | if (need_rand) | |
432 | app_RAND_write_file(NULL, bio_err); | |
433 | ret = 0; | |
434 | end: | |
435 | if (cb != NULL) | |
436 | BN_GENCB_free(cb); | |
437 | if (in != NULL) | |
438 | BIO_free(in); | |
439 | if (out != NULL) | |
440 | BIO_free_all(out); | |
d6407083 | 441 | DSA_free(dsa); |
0f113f3e MC |
442 | apps_shutdown(); |
443 | OPENSSL_EXIT(ret); | |
444 | } | |
d02b48c6 | 445 | |
6d23cf97 | 446 | static int dsa_cb(int p, int n, BN_GENCB *cb) |
0f113f3e MC |
447 | { |
448 | char c = '*'; | |
449 | ||
450 | if (p == 0) | |
451 | c = '.'; | |
452 | if (p == 1) | |
453 | c = '+'; | |
454 | if (p == 2) | |
455 | c = '*'; | |
456 | if (p == 3) | |
457 | c = '\n'; | |
458 | BIO_write(BN_GENCB_get_arg(cb), &c, 1); | |
459 | (void)BIO_flush(BN_GENCB_get_arg(cb)); | |
460 | # ifdef GENCB_TEST | |
461 | if (stop_keygen_flag) | |
462 | return 0; | |
463 | # endif | |
464 | return 1; | |
465 | } | |
466 | #else /* !OPENSSL_NO_DSA */ | |
d4f0339c DSH |
467 | |
468 | # if PEDANTIC | |
0f113f3e | 469 | static void *dummy = &dummy; |
d4f0339c DSH |
470 | # endif |
471 | ||
f5d7a031 | 472 | #endif |