2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */
61 #ifndef OPENSSL_NO_DSA
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>
76 # define PROG dsaparam_main
79 * -inform arg - input format - default PEM (DER or PEM)
80 * -outform arg - output format - default PEM
81 * -in arg - input file - default stdin
82 * -out arg - output file - default stdout
89 * -timebomb n - interrupt keygen after <n> seconds
95 static int stop_keygen_flag = 0;
97 static void timebomb_sigalarm(int foo)
104 static int dsa_cb(int p, int n, BN_GENCB *cb);
106 int MAIN(int, char **);
108 int MAIN(int argc, char **argv)
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;
117 int non_fips_allow = 0;
119 # ifndef OPENSSL_NO_ENGINE
129 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
130 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
132 if (!load_config(bio_err, NULL))
137 informat = FORMAT_PEM;
138 outformat = FORMAT_PEM;
144 if (strcmp(*argv, "-inform") == 0) {
147 informat = str2fmt(*(++argv));
148 } else if (strcmp(*argv, "-outform") == 0) {
151 outformat = str2fmt(*(++argv));
152 } else if (strcmp(*argv, "-in") == 0) {
156 } else if (strcmp(*argv, "-out") == 0) {
161 # ifndef OPENSSL_NO_ENGINE
162 else if (strcmp(*argv, "-engine") == 0) {
169 else if (strcmp(*argv, "-timebomb") == 0) {
172 timebomb = atoi(*(++argv));
175 else if (strcmp(*argv, "-text") == 0)
177 else if (strcmp(*argv, "-C") == 0)
179 else if (strcmp(*argv, "-genkey") == 0) {
182 } else if (strcmp(*argv, "-rand") == 0) {
187 } else if (strcmp(*argv, "-noout") == 0)
189 else if (strcmp(*argv, "-non-fips-allow") == 0)
191 else if (sscanf(*argv, "%d", &num) == 1) {
196 BIO_printf(bio_err, "unknown option %s\n", *argv);
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");
217 " -rand files to use for random number input\n");
218 # ifndef OPENSSL_NO_ENGINE
220 " -engine e use engine e, possibly a hardware device.\n");
224 " -timebomb n interrupt keygen after <n> seconds\n");
227 " number number of bits to use for generating private key\n");
231 ERR_load_crypto_strings();
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);
241 BIO_set_fp(in, stdin, BIO_NOCLOSE);
243 if (BIO_read_filename(in, infile) <= 0) {
248 if (outfile == NULL) {
249 BIO_set_fp(out, stdout, BIO_NOCLOSE);
250 # ifdef OPENSSL_SYS_VMS
252 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
253 out = BIO_push(tmpbio, out);
257 if (BIO_write_filename(out, outfile) <= 0) {
263 # ifndef OPENSSL_NO_ENGINE
264 setup_engine(bio_err, engine, 0);
268 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
270 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
271 app_RAND_load_files(inrand));
277 BIO_printf(bio_err, "Error allocating BN_GENCB object\n");
280 BN_GENCB_set(cb, dsa_cb, bio_err);
284 BIO_printf(bio_err, "Error allocating DSA object\n");
288 dsa->flags |= DSA_FLAG_NON_FIPS_ALLOW;
289 BIO_printf(bio_err, "Generating DSA parameters, %d bit long prime\n",
291 BIO_printf(bio_err, "This could take some time\n");
294 struct sigaction act;
295 act.sa_handler = timebomb_sigalarm;
298 "(though I'll stop it if not done within %d secs)\n",
300 if (sigaction(SIGALRM, &act, NULL) != 0) {
301 BIO_printf(bio_err, "Error, couldn't set SIGALRM handler\n");
307 if (!DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL, cb)) {
309 if (stop_keygen_flag) {
310 BIO_printf(bio_err, "DSA key generation time-stopped\n");
311 /* This is an asked-for behaviour! */
316 ERR_print_errors(bio_err);
317 BIO_printf(bio_err, "Error, DSA key generation failed\n");
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);
325 BIO_printf(bio_err, "bad input format specified\n");
329 BIO_printf(bio_err, "unable to load DSA parameters\n");
330 ERR_print_errors(bio_err);
335 DSAparams_print(out, dsa);
342 len = BN_num_bytes(dsa->p);
343 bits_p = BN_num_bits(dsa->p);
344 data = (unsigned char *)OPENSSL_malloc(len + 20);
346 perror("OPENSSL_malloc");
349 l = BN_bn2bin(dsa->p, data);
350 printf("static unsigned char dsa%d_p[]={", bits_p);
351 for (i = 0; i < l; i++) {
354 printf("0x%02X,", data[i]);
358 l = BN_bn2bin(dsa->q, data);
359 printf("static unsigned char dsa%d_q[]={", bits_p);
360 for (i = 0; i < l; i++) {
363 printf("0x%02X,", data[i]);
367 l = BN_bn2bin(dsa->g, data);
368 printf("static unsigned char dsa%d_g[]={", bits_p);
369 for (i = 0; i < l; i++) {
372 printf("0x%02X,", data[i]);
374 printf("\n\t};\n\n");
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",
381 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
383 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
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");
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);
397 BIO_printf(bio_err, "bad output format specified for outfile\n");
401 BIO_printf(bio_err, "unable to write DSA parameters\n");
402 ERR_print_errors(bio_err);
410 if ((dsakey = DSAparams_dup(dsa)) == NULL)
413 dsakey->flags |= DSA_FLAG_NON_FIPS_ALLOW;
414 if (!DSA_generate_key(dsakey)) {
415 ERR_print_errors(bio_err);
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,
425 BIO_printf(bio_err, "bad output format specified for outfile\n");
432 app_RAND_write_file(NULL, bio_err);
447 static int dsa_cb(int p, int n, BN_GENCB *cb)
459 BIO_write(BN_GENCB_get_arg(cb), &c, 1);
460 (void)BIO_flush(BN_GENCB_get_arg(cb));
462 if (stop_keygen_flag)
467 #else /* !OPENSSL_NO_DSA */
470 static void *dummy = &dummy;