]>
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.]
65 #include <openssl/bio.h>
66 #include <openssl/err.h>
67 #include <openssl/bn.h>
68 #include <openssl/rand.h>
69 #include <openssl/dsa.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
74 #define PROG dsaparam_main
76 /* -inform arg - input format - default PEM (one of DER, TXT or PEM)
77 * -outform arg - output format - default PEM
78 * -in arg - input file - default stdin
79 * -out arg - output file - default stdout
87 static void MS_CALLBACK
dsa_cb(int p
, int n
, char *arg
);
88 int MAIN(int argc
, char **argv
)
91 int i
,badops
=0,text
=0;
92 BIO
*in
=NULL
,*out
=NULL
;
93 int informat
,outformat
,noout
=0,C
=0,ret
=1;
94 char *infile
,*outfile
,*prog
,*inrand
=NULL
;
95 int numbits
= -1,num
,genkey
=0;
96 char buffer
[200],*randfile
=NULL
;
101 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
102 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
107 outformat
=FORMAT_PEM
;
114 if (strcmp(*argv
,"-inform") == 0)
116 if (--argc
< 1) goto bad
;
117 informat
=str2fmt(*(++argv
));
119 else if (strcmp(*argv
,"-outform") == 0)
121 if (--argc
< 1) goto bad
;
122 outformat
=str2fmt(*(++argv
));
124 else if (strcmp(*argv
,"-in") == 0)
126 if (--argc
< 1) goto bad
;
129 else if (strcmp(*argv
,"-out") == 0)
131 if (--argc
< 1) goto bad
;
134 else if (strcmp(*argv
,"-text") == 0)
136 else if (strcmp(*argv
,"-C") == 0)
138 else if (strcmp(*argv
,"-genkey") == 0)
140 else if (strcmp(*argv
,"-rand") == 0)
142 if (--argc
< 1) goto bad
;
145 else if (strcmp(*argv
,"-noout") == 0)
147 else if (sscanf(*argv
,"%d",&num
) == 1)
154 BIO_printf(bio_err
,"unknown option %s\n",*argv
);
165 BIO_printf(bio_err
,"%s [options] [bits] <infile >outfile\n",prog
);
166 BIO_printf(bio_err
,"where options are\n");
167 BIO_printf(bio_err
," -inform arg input format - one of DER TXT PEM\n");
168 BIO_printf(bio_err
," -outform arg output format - one of DER TXT PEM\n");
169 BIO_printf(bio_err
," -in arg input file\n");
170 BIO_printf(bio_err
," -out arg output file\n");
171 BIO_printf(bio_err
," -text check the DSA parameters\n");
172 BIO_printf(bio_err
," -C Output C code\n");
173 BIO_printf(bio_err
," -noout no output\n");
174 BIO_printf(bio_err
," -rand files to use for random number input\n");
175 BIO_printf(bio_err
," number number of bits to use for generating private key\n");
179 ERR_load_crypto_strings();
181 in
=BIO_new(BIO_s_file());
182 out
=BIO_new(BIO_s_file());
183 if ((in
== NULL
) || (out
== NULL
))
185 ERR_print_errors(bio_err
);
190 BIO_set_fp(in
,stdin
,BIO_NOCLOSE
);
193 if (BIO_read_filename(in
,infile
) <= 0)
200 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
);
203 if (BIO_write_filename(out
,outfile
) <= 0)
212 randfile
=RAND_file_name(buffer
,200);
213 RAND_load_file(randfile
,1024L*1024L);
215 BIO_printf(bio_err
,"Generating DSA parameters, %d bit long prime\n",num
);
216 BIO_printf(bio_err
,"This could take some time\n");
217 dsa
=DSA_generate_parameters(num
,NULL
,0,NULL
,NULL
,
218 dsa_cb
,(char *)bio_err
);
220 else if (informat
== FORMAT_ASN1
)
221 dsa
=d2i_DSAparams_bio(in
,NULL
);
222 else if (informat
== FORMAT_PEM
)
223 dsa
=PEM_read_bio_DSAparams(in
,NULL
,NULL
,NULL
);
226 BIO_printf(bio_err
,"bad input format specified\n");
231 BIO_printf(bio_err
,"unable to load DSA parameters\n");
232 ERR_print_errors(bio_err
);
238 DSAparams_print(out
,dsa
);
244 int l
,len
,bits_p
,bits_q
,bits_g
;
246 len
=BN_num_bytes(dsa
->p
);
247 bits_p
=BN_num_bits(dsa
->p
);
248 bits_q
=BN_num_bits(dsa
->q
);
249 bits_g
=BN_num_bits(dsa
->g
);
250 data
=(unsigned char *)Malloc(len
+20);
256 l
=BN_bn2bin(dsa
->p
,data
);
257 printf("static unsigned char dsa%d_p[]={",bits_p
);
260 if ((i
%12) == 0) printf("\n\t");
261 printf("0x%02X,",data
[i
]);
265 l
=BN_bn2bin(dsa
->q
,data
);
266 printf("static unsigned char dsa%d_q[]={",bits_p
);
269 if ((i
%12) == 0) printf("\n\t");
270 printf("0x%02X,",data
[i
]);
274 l
=BN_bn2bin(dsa
->g
,data
);
275 printf("static unsigned char dsa%d_g[]={",bits_p
);
278 if ((i
%12) == 0) printf("\n\t");
279 printf("0x%02X,",data
[i
]);
281 printf("\n\t};\n\n");
283 printf("DSA *get_dsa%d()\n\t{\n",bits_p
);
284 printf("\tDSA *dsa;\n\n");
285 printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
286 printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
288 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
290 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
292 printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
293 printf("\t\treturn(NULL);\n");
294 printf("\treturn(dsa);\n\t}\n");
300 if (outformat
== FORMAT_ASN1
)
301 i
=i2d_DSAparams_bio(out
,dsa
);
302 else if (outformat
== FORMAT_PEM
)
303 i
=PEM_write_bio_DSAparams(out
,dsa
);
305 BIO_printf(bio_err
,"bad output format specified for outfile\n");
310 BIO_printf(bio_err
,"unable to write DSA paramaters\n");
311 ERR_print_errors(bio_err
);
319 if ((dsakey
=DSAparams_dup(dsa
)) == NULL
) goto end
;
320 if (!DSA_generate_key(dsakey
)) goto end
;
321 if (outformat
== FORMAT_ASN1
)
322 i
=i2d_DSAPrivateKey_bio(out
,dsakey
);
323 else if (outformat
== FORMAT_PEM
)
324 i
=PEM_write_bio_DSAPrivateKey(out
,dsakey
,NULL
,NULL
,0,NULL
,NULL
);
326 BIO_printf(bio_err
,"bad output format specified for outfile\n");
333 if (in
!= NULL
) BIO_free(in
);
334 if (out
!= NULL
) BIO_free(out
);
335 if (dsa
!= NULL
) DSA_free(dsa
);
339 static void MS_CALLBACK
dsa_cb(int p
, int n
, char *arg
)
347 BIO_write((BIO
*)arg
,&c
,1);
348 (void)BIO_flush((BIO
*)arg
);