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 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
60 * deprecated functions for openssl-internal code */
61 #ifdef OPENSSL_NO_DEPRECATED
62 #undef OPENSSL_NO_DEPRECATED
65 #ifndef OPENSSL_NO_DSA
72 #include <openssl/bio.h>
73 #include <openssl/err.h>
74 #include <openssl/bn.h>
75 #include <openssl/dsa.h>
76 #include <openssl/x509.h>
77 #include <openssl/pem.h>
80 #define PROG dsaparam_main
82 /* -inform arg - input format - default PEM (DER or PEM)
83 * -outform arg - output format - default PEM
84 * -in arg - input file - default stdin
85 * -out arg - output file - default stdout
92 * -timebomb n - interrupt keygen after <n> seconds
98 static int stop_keygen_flag = 0;
100 void timebomb_sigalarm(int foo)
102 stop_keygen_flag = 1;
107 static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb);
109 int MAIN(int, char **);
111 int MAIN(int argc, char **argv)
115 int i,badops=0,text=0;
116 BIO *in=NULL,*out=NULL;
117 int informat,outformat,noout=0,C=0,ret=1;
118 char *infile,*outfile,*prog,*inrand=NULL;
119 int numbits= -1,num,genkey=0;
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))
138 outformat=FORMAT_PEM;
145 if (strcmp(*argv,"-inform") == 0)
147 if (--argc < 1) goto bad;
148 informat=str2fmt(*(++argv));
150 else if (strcmp(*argv,"-outform") == 0)
152 if (--argc < 1) goto bad;
153 outformat=str2fmt(*(++argv));
155 else if (strcmp(*argv,"-in") == 0)
157 if (--argc < 1) goto bad;
160 else if (strcmp(*argv,"-out") == 0)
162 if (--argc < 1) goto bad;
165 else if(strcmp(*argv, "-engine") == 0)
167 if (--argc < 1) goto bad;
171 else if(strcmp(*argv, "-timebomb") == 0)
173 if (--argc < 1) goto bad;
174 timebomb = atoi(*(++argv));
177 else if (strcmp(*argv,"-text") == 0)
179 else if (strcmp(*argv,"-C") == 0)
181 else if (strcmp(*argv,"-genkey") == 0)
186 else if (strcmp(*argv,"-rand") == 0)
188 if (--argc < 1) goto bad;
192 else if (strcmp(*argv,"-noout") == 0)
194 else if (sscanf(*argv,"%d",&num) == 1)
202 BIO_printf(bio_err,"unknown option %s\n",*argv);
213 BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
214 BIO_printf(bio_err,"where options are\n");
215 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
216 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
217 BIO_printf(bio_err," -in arg input file\n");
218 BIO_printf(bio_err," -out arg output file\n");
219 BIO_printf(bio_err," -text print as text\n");
220 BIO_printf(bio_err," -C Output C code\n");
221 BIO_printf(bio_err," -noout no output\n");
222 BIO_printf(bio_err," -genkey generate a DSA key\n");
223 BIO_printf(bio_err," -rand files to use for random number input\n");
224 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
226 BIO_printf(bio_err," -timebomb n interrupt keygen after <n> seconds\n");
228 BIO_printf(bio_err," number number of bits to use for generating private key\n");
232 ERR_load_crypto_strings();
234 in=BIO_new(BIO_s_file());
235 out=BIO_new(BIO_s_file());
236 if ((in == NULL) || (out == NULL))
238 ERR_print_errors(bio_err);
243 BIO_set_fp(in,stdin,BIO_NOCLOSE);
246 if (BIO_read_filename(in,infile) <= 0)
254 BIO_set_fp(out,stdout,BIO_NOCLOSE);
255 #ifdef OPENSSL_SYS_VMS
257 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
258 out = BIO_push(tmpbio, out);
264 if (BIO_write_filename(out,outfile) <= 0)
271 e = setup_engine(bio_err, engine, 0);
275 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
277 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
278 app_RAND_load_files(inrand));
284 BN_GENCB_set(&cb, dsa_cb, bio_err);
289 BIO_printf(bio_err,"Error allocating DSA object\n");
292 BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num);
293 BIO_printf(bio_err,"This could take some time\n");
297 struct sigaction act;
298 act.sa_handler = timebomb_sigalarm;
300 BIO_printf(bio_err,"(though I'll stop it if not done within %d secs)\n",
302 if(sigaction(SIGALRM, &act, NULL) != 0)
304 BIO_printf(bio_err,"Error, couldn't set SIGALRM handler\n");
310 if(!DSA_generate_parameters_ex(dsa,num,NULL,0,NULL,NULL, &cb))
315 BIO_printf(bio_err,"DSA key generation time-stopped\n");
316 /* This is an asked-for behaviour! */
321 BIO_printf(bio_err,"Error, DSA key generation failed\n");
325 else if (informat == FORMAT_ASN1)
326 dsa=d2i_DSAparams_bio(in,NULL);
327 else if (informat == FORMAT_PEM)
328 dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL);
331 BIO_printf(bio_err,"bad input format specified\n");
336 BIO_printf(bio_err,"unable to load DSA parameters\n");
337 ERR_print_errors(bio_err);
343 DSAparams_print(out,dsa);
349 int l,len,bits_p,bits_q,bits_g;
351 len=BN_num_bytes(dsa->p);
352 bits_p=BN_num_bits(dsa->p);
353 bits_q=BN_num_bits(dsa->q);
354 bits_g=BN_num_bits(dsa->g);
355 data=(unsigned char *)OPENSSL_malloc(len+20);
358 perror("OPENSSL_malloc");
361 l=BN_bn2bin(dsa->p,data);
362 printf("static unsigned char dsa%d_p[]={",bits_p);
365 if ((i%12) == 0) printf("\n\t");
366 printf("0x%02X,",data[i]);
370 l=BN_bn2bin(dsa->q,data);
371 printf("static unsigned char dsa%d_q[]={",bits_p);
374 if ((i%12) == 0) printf("\n\t");
375 printf("0x%02X,",data[i]);
379 l=BN_bn2bin(dsa->g,data);
380 printf("static unsigned char dsa%d_g[]={",bits_p);
383 if ((i%12) == 0) printf("\n\t");
384 printf("0x%02X,",data[i]);
386 printf("\n\t};\n\n");
388 printf("DSA *get_dsa%d()\n\t{\n",bits_p);
389 printf("\tDSA *dsa;\n\n");
390 printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
391 printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
393 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
395 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
397 printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
398 printf("\t\t{ DSA_free(dsa); return(NULL); }\n");
399 printf("\treturn(dsa);\n\t}\n");
405 if (outformat == FORMAT_ASN1)
406 i=i2d_DSAparams_bio(out,dsa);
407 else if (outformat == FORMAT_PEM)
408 i=PEM_write_bio_DSAparams(out,dsa);
410 BIO_printf(bio_err,"bad output format specified for outfile\n");
415 BIO_printf(bio_err,"unable to write DSA parameters\n");
416 ERR_print_errors(bio_err);
425 if ((dsakey=DSAparams_dup(dsa)) == NULL) goto end;
426 if (!DSA_generate_key(dsakey)) goto end;
427 if (outformat == FORMAT_ASN1)
428 i=i2d_DSAPrivateKey_bio(out,dsakey);
429 else if (outformat == FORMAT_PEM)
430 i=PEM_write_bio_DSAPrivateKey(out,dsakey,NULL,NULL,0,NULL,NULL);
432 BIO_printf(bio_err,"bad output format specified for outfile\n");
438 app_RAND_write_file(NULL, bio_err);
441 if (in != NULL) BIO_free(in);
442 if (out != NULL) BIO_free_all(out);
443 if (dsa != NULL) DSA_free(dsa);
448 static int MS_CALLBACK dsa_cb(int p, int n, BN_GENCB *cb)
456 BIO_write(cb->arg,&c,1);
457 (void)BIO_flush(cb->arg);