]>
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 #ifndef OPENSSL_NO_DSA
66 #include <openssl/bio.h>
67 #include <openssl/err.h>
68 #include <openssl/bn.h>
69 #include <openssl/dsa.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
72 #include <openssl/engine.h>
75 #define PROG dsaparam_main
77 /* -inform arg - input format - default PEM (DER or PEM)
78 * -outform arg - output format - default PEM
79 * -in arg - input file - default stdin
80 * -out arg - output file - default stdout
88 static void MS_CALLBACK
dsa_cb(int p
, int n
, void *arg
);
90 int MAIN(int, char **);
92 int MAIN(int argc
, char **argv
)
96 int i
,badops
=0,text
=0;
97 BIO
*in
=NULL
,*out
=NULL
;
98 int informat
,outformat
,noout
=0,C
=0,ret
=1;
99 char *infile
,*outfile
,*prog
,*inrand
=NULL
;
100 int numbits
= -1,num
,genkey
=0;
107 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
108 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
113 outformat
=FORMAT_PEM
;
120 if (strcmp(*argv
,"-inform") == 0)
122 if (--argc
< 1) goto bad
;
123 informat
=str2fmt(*(++argv
));
125 else if (strcmp(*argv
,"-outform") == 0)
127 if (--argc
< 1) goto bad
;
128 outformat
=str2fmt(*(++argv
));
130 else if (strcmp(*argv
,"-in") == 0)
132 if (--argc
< 1) goto bad
;
135 else if (strcmp(*argv
,"-out") == 0)
137 if (--argc
< 1) goto bad
;
140 else if(strcmp(*argv
, "-engine") == 0)
142 if (--argc
< 1) goto bad
;
145 else if (strcmp(*argv
,"-text") == 0)
147 else if (strcmp(*argv
,"-C") == 0)
149 else if (strcmp(*argv
,"-genkey") == 0)
154 else if (strcmp(*argv
,"-rand") == 0)
156 if (--argc
< 1) goto bad
;
160 else if (strcmp(*argv
,"-noout") == 0)
162 else if (sscanf(*argv
,"%d",&num
) == 1)
170 BIO_printf(bio_err
,"unknown option %s\n",*argv
);
181 BIO_printf(bio_err
,"%s [options] [bits] <infile >outfile\n",prog
);
182 BIO_printf(bio_err
,"where options are\n");
183 BIO_printf(bio_err
," -inform arg input format - DER or PEM\n");
184 BIO_printf(bio_err
," -outform arg output format - DER or PEM\n");
185 BIO_printf(bio_err
," -in arg input file\n");
186 BIO_printf(bio_err
," -out arg output file\n");
187 BIO_printf(bio_err
," -text print the key in text\n");
188 BIO_printf(bio_err
," -C Output C code\n");
189 BIO_printf(bio_err
," -noout no output\n");
190 BIO_printf(bio_err
," -rand files to use for random number input\n");
191 BIO_printf(bio_err
," -engine e use engine e, possibly a hardware device.\n");
192 BIO_printf(bio_err
," number number of bits to use for generating private key\n");
196 ERR_load_crypto_strings();
198 in
=BIO_new(BIO_s_file());
199 out
=BIO_new(BIO_s_file());
200 if ((in
== NULL
) || (out
== NULL
))
202 ERR_print_errors(bio_err
);
207 BIO_set_fp(in
,stdin
,BIO_NOCLOSE
);
210 if (BIO_read_filename(in
,infile
) <= 0)
218 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
);
221 BIO
*tmpbio
= BIO_new(BIO_f_linebuffer());
222 out
= BIO_push(tmpbio
, out
);
228 if (BIO_write_filename(out
,outfile
) <= 0)
237 if((e
= ENGINE_by_id(engine
)) == NULL
)
239 BIO_printf(bio_err
,"invalid engine \"%s\"\n",
243 if(!ENGINE_set_default(e
, ENGINE_METHOD_ALL
))
245 BIO_printf(bio_err
,"can't use that engine\n");
248 BIO_printf(bio_err
,"engine \"%s\" set.\n", engine
);
249 /* Free our "structural" reference. */
255 app_RAND_load_file(NULL
, bio_err
, (inrand
!= NULL
));
257 BIO_printf(bio_err
,"%ld semi-random bytes loaded\n",
258 app_RAND_load_files(inrand
));
264 BIO_printf(bio_err
,"Generating DSA parameters, %d bit long prime\n",num
);
265 BIO_printf(bio_err
,"This could take some time\n");
266 dsa
=DSA_generate_parameters(num
,NULL
,0,NULL
,NULL
, dsa_cb
,bio_err
);
268 else if (informat
== FORMAT_ASN1
)
269 dsa
=d2i_DSAparams_bio(in
,NULL
);
270 else if (informat
== FORMAT_PEM
)
271 dsa
=PEM_read_bio_DSAparams(in
,NULL
,NULL
,NULL
);
274 BIO_printf(bio_err
,"bad input format specified\n");
279 BIO_printf(bio_err
,"unable to load DSA parameters\n");
280 ERR_print_errors(bio_err
);
286 DSAparams_print(out
,dsa
);
292 int l
,len
,bits_p
,bits_q
,bits_g
;
294 len
=BN_num_bytes(dsa
->p
);
295 bits_p
=BN_num_bits(dsa
->p
);
296 bits_q
=BN_num_bits(dsa
->q
);
297 bits_g
=BN_num_bits(dsa
->g
);
298 data
=(unsigned char *)OPENSSL_malloc(len
+20);
301 perror("OPENSSL_malloc");
304 l
=BN_bn2bin(dsa
->p
,data
);
305 printf("static unsigned char dsa%d_p[]={",bits_p
);
308 if ((i
%12) == 0) printf("\n\t");
309 printf("0x%02X,",data
[i
]);
313 l
=BN_bn2bin(dsa
->q
,data
);
314 printf("static unsigned char dsa%d_q[]={",bits_p
);
317 if ((i
%12) == 0) printf("\n\t");
318 printf("0x%02X,",data
[i
]);
322 l
=BN_bn2bin(dsa
->g
,data
);
323 printf("static unsigned char dsa%d_g[]={",bits_p
);
326 if ((i
%12) == 0) printf("\n\t");
327 printf("0x%02X,",data
[i
]);
329 printf("\n\t};\n\n");
331 printf("DSA *get_dsa%d()\n\t{\n",bits_p
);
332 printf("\tDSA *dsa;\n\n");
333 printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
334 printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
336 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
338 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
340 printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
341 printf("\t\t{ DSA_free(dsa); return(NULL); }\n");
342 printf("\treturn(dsa);\n\t}\n");
348 if (outformat
== FORMAT_ASN1
)
349 i
=i2d_DSAparams_bio(out
,dsa
);
350 else if (outformat
== FORMAT_PEM
)
351 i
=PEM_write_bio_DSAparams(out
,dsa
);
353 BIO_printf(bio_err
,"bad output format specified for outfile\n");
358 BIO_printf(bio_err
,"unable to write DSA parameters\n");
359 ERR_print_errors(bio_err
);
368 if ((dsakey
=DSAparams_dup(dsa
)) == NULL
) goto end
;
369 if (!DSA_generate_key(dsakey
)) goto end
;
370 if (outformat
== FORMAT_ASN1
)
371 i
=i2d_DSAPrivateKey_bio(out
,dsakey
);
372 else if (outformat
== FORMAT_PEM
)
373 i
=PEM_write_bio_DSAPrivateKey(out
,dsakey
,NULL
,NULL
,0,NULL
,NULL
);
375 BIO_printf(bio_err
,"bad output format specified for outfile\n");
381 app_RAND_write_file(NULL
, bio_err
);
384 if (in
!= NULL
) BIO_free(in
);
385 if (out
!= NULL
) BIO_free_all(out
);
386 if (dsa
!= NULL
) DSA_free(dsa
);
390 static void MS_CALLBACK
dsa_cb(int p
, int n
, void *arg
)
399 (void)BIO_flush(arg
);