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git.ipfire.org Git - thirdparty/openssl.git/blob - apps/dsaparam.c
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 */
60 /* Until the key-gen callbacks are modified to use newer prototypes, we allow
61 * deprecated functions for openssl-internal code */
62 #ifdef OPENSSL_NO_DEPRECATED
63 #undef OPENSSL_NO_DEPRECATED
66 #ifndef OPENSSL_NO_DSA
73 #include <openssl/bio.h>
74 #include <openssl/err.h>
75 #include <openssl/bn.h>
76 #include <openssl/dsa.h>
77 #include <openssl/x509.h>
78 #include <openssl/pem.h>
81 #define PROG dsaparam_main
83 /* -inform arg - input format - default PEM (DER or PEM)
84 * -outform arg - output format - default PEM
85 * -in arg - input file - default stdin
86 * -out arg - output file - default stdout
93 * -timebomb n - interrupt keygen after <n> seconds
99 static int stop_keygen_flag
= 0;
101 static void timebomb_sigalarm(int foo
)
103 stop_keygen_flag
= 1;
108 static int MS_CALLBACK
dsa_cb(int p
, int n
, BN_GENCB
*cb
);
110 int MAIN(int, char **);
112 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;
121 #ifndef OPENSSL_NO_ENGINE
131 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
132 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
134 if (!load_config(bio_err
, NULL
))
140 outformat
=FORMAT_PEM
;
147 if (strcmp(*argv
,"-inform") == 0)
149 if (--argc
< 1) goto bad
;
150 informat
=str2fmt(*(++argv
));
152 else if (strcmp(*argv
,"-outform") == 0)
154 if (--argc
< 1) goto bad
;
155 outformat
=str2fmt(*(++argv
));
157 else if (strcmp(*argv
,"-in") == 0)
159 if (--argc
< 1) goto bad
;
162 else if (strcmp(*argv
,"-out") == 0)
164 if (--argc
< 1) goto bad
;
167 #ifndef OPENSSL_NO_ENGINE
168 else if(strcmp(*argv
, "-engine") == 0)
170 if (--argc
< 1) goto bad
;
175 else if(strcmp(*argv
, "-timebomb") == 0)
177 if (--argc
< 1) goto bad
;
178 timebomb
= atoi(*(++argv
));
181 else if (strcmp(*argv
,"-text") == 0)
183 else if (strcmp(*argv
,"-C") == 0)
185 else if (strcmp(*argv
,"-genkey") == 0)
190 else if (strcmp(*argv
,"-rand") == 0)
192 if (--argc
< 1) goto bad
;
196 else if (strcmp(*argv
,"-noout") == 0)
198 else if (sscanf(*argv
,"%d",&num
) == 1)
206 BIO_printf(bio_err
,"unknown option %s\n",*argv
);
217 BIO_printf(bio_err
,"%s [options] [bits] <infile >outfile\n",prog
);
218 BIO_printf(bio_err
,"where options are\n");
219 BIO_printf(bio_err
," -inform arg input format - DER or PEM\n");
220 BIO_printf(bio_err
," -outform arg output format - DER or PEM\n");
221 BIO_printf(bio_err
," -in arg input file\n");
222 BIO_printf(bio_err
," -out arg output file\n");
223 BIO_printf(bio_err
," -text print as text\n");
224 BIO_printf(bio_err
," -C Output C code\n");
225 BIO_printf(bio_err
," -noout no output\n");
226 BIO_printf(bio_err
," -genkey generate a DSA key\n");
227 BIO_printf(bio_err
," -rand files to use for random number input\n");
228 #ifndef OPENSSL_NO_ENGINE
229 BIO_printf(bio_err
," -engine e use engine e, possibly a hardware device.\n");
232 BIO_printf(bio_err
," -timebomb n interrupt keygen after <n> seconds\n");
234 BIO_printf(bio_err
," number number of bits to use for generating private key\n");
238 ERR_load_crypto_strings();
240 in
=BIO_new(BIO_s_file());
241 out
=BIO_new(BIO_s_file());
242 if ((in
== NULL
) || (out
== NULL
))
244 ERR_print_errors(bio_err
);
249 BIO_set_fp(in
,stdin
,BIO_NOCLOSE
);
252 if (BIO_read_filename(in
,infile
) <= 0)
260 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
);
261 #ifdef OPENSSL_SYS_VMS
263 BIO
*tmpbio
= BIO_new(BIO_f_linebuffer());
264 out
= BIO_push(tmpbio
, out
);
270 if (BIO_write_filename(out
,outfile
) <= 0)
277 #ifndef OPENSSL_NO_ENGINE
278 setup_engine(bio_err
, engine
, 0);
283 app_RAND_load_file(NULL
, bio_err
, (inrand
!= NULL
));
285 BIO_printf(bio_err
,"%ld semi-random bytes loaded\n",
286 app_RAND_load_files(inrand
));
292 BN_GENCB_set(&cb
, dsa_cb
, bio_err
);
297 BIO_printf(bio_err
,"Error allocating DSA object\n");
300 BIO_printf(bio_err
,"Generating DSA parameters, %d bit long prime\n",num
);
301 BIO_printf(bio_err
,"This could take some time\n");
305 struct sigaction act
;
306 act
.sa_handler
= timebomb_sigalarm
;
308 BIO_printf(bio_err
,"(though I'll stop it if not done within %d secs)\n",
310 if(sigaction(SIGALRM
, &act
, NULL
) != 0)
312 BIO_printf(bio_err
,"Error, couldn't set SIGALRM handler\n");
318 if(!DSA_generate_parameters_ex(dsa
,num
,NULL
,0,NULL
,NULL
, &cb
))
323 BIO_printf(bio_err
,"DSA key generation time-stopped\n");
324 /* This is an asked-for behaviour! */
329 ERR_print_errors(bio_err
);
330 BIO_printf(bio_err
,"Error, DSA key generation failed\n");
334 else if (informat
== FORMAT_ASN1
)
335 dsa
=d2i_DSAparams_bio(in
,NULL
);
336 else if (informat
== FORMAT_PEM
)
337 dsa
=PEM_read_bio_DSAparams(in
,NULL
,NULL
,NULL
);
340 BIO_printf(bio_err
,"bad input format specified\n");
345 BIO_printf(bio_err
,"unable to load DSA parameters\n");
346 ERR_print_errors(bio_err
);
352 DSAparams_print(out
,dsa
);
360 len
=BN_num_bytes(dsa
->p
);
361 bits_p
=BN_num_bits(dsa
->p
);
362 data
=(unsigned char *)OPENSSL_malloc(len
+20);
365 perror("OPENSSL_malloc");
368 l
=BN_bn2bin(dsa
->p
,data
);
369 printf("static unsigned char dsa%d_p[]={",bits_p
);
372 if ((i
%12) == 0) printf("\n\t");
373 printf("0x%02X,",data
[i
]);
377 l
=BN_bn2bin(dsa
->q
,data
);
378 printf("static unsigned char dsa%d_q[]={",bits_p
);
381 if ((i
%12) == 0) printf("\n\t");
382 printf("0x%02X,",data
[i
]);
386 l
=BN_bn2bin(dsa
->g
,data
);
387 printf("static unsigned char dsa%d_g[]={",bits_p
);
390 if ((i
%12) == 0) printf("\n\t");
391 printf("0x%02X,",data
[i
]);
393 printf("\n\t};\n\n");
395 printf("DSA *get_dsa%d()\n\t{\n",bits_p
);
396 printf("\tDSA *dsa;\n\n");
397 printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
398 printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
400 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
402 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
404 printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
405 printf("\t\t{ DSA_free(dsa); return(NULL); }\n");
406 printf("\treturn(dsa);\n\t}\n");
412 if (outformat
== FORMAT_ASN1
)
413 i
=i2d_DSAparams_bio(out
,dsa
);
414 else if (outformat
== FORMAT_PEM
)
415 i
=PEM_write_bio_DSAparams(out
,dsa
);
417 BIO_printf(bio_err
,"bad output format specified for outfile\n");
422 BIO_printf(bio_err
,"unable to write DSA parameters\n");
423 ERR_print_errors(bio_err
);
432 if ((dsakey
=DSAparams_dup(dsa
)) == NULL
) goto end
;
433 if (!DSA_generate_key(dsakey
))
435 ERR_print_errors(bio_err
);
439 if (outformat
== FORMAT_ASN1
)
440 i
=i2d_DSAPrivateKey_bio(out
,dsakey
);
441 else if (outformat
== FORMAT_PEM
)
442 i
=PEM_write_bio_DSAPrivateKey(out
,dsakey
,NULL
,NULL
,0,NULL
,NULL
);
444 BIO_printf(bio_err
,"bad output format specified for outfile\n");
451 app_RAND_write_file(NULL
, bio_err
);
454 if (in
!= NULL
) BIO_free(in
);
455 if (out
!= NULL
) BIO_free_all(out
);
456 if (dsa
!= NULL
) DSA_free(dsa
);
461 static int MS_CALLBACK
dsa_cb(int p
, int n
, BN_GENCB
*cb
)
469 BIO_write(cb
->arg
,&c
,1);
470 (void)BIO_flush(cb
->arg
);
480 #else /* !OPENSSL_NO_DSA */
483 static void *dummy
=&dummy
;