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>
74 #define PROG dsaparam_main
76 /* -inform arg - input format - default PEM (DER 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, void *arg);
89 int MAIN(int, char **);
91 int MAIN(int argc, char **argv)
93 #ifndef OPENSSL_NO_ENGINE
97 int i,badops=0,text=0;
98 BIO *in=NULL,*out=NULL;
99 int informat,outformat,noout=0,C=0,ret=1;
100 char *infile,*outfile,*prog,*inrand=NULL;
101 int numbits= -1,num,genkey=0;
103 #ifndef OPENSSL_NO_ENGINE
110 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
111 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
113 if (!load_config(bio_err, NULL))
119 outformat=FORMAT_PEM;
126 if (strcmp(*argv,"-inform") == 0)
128 if (--argc < 1) goto bad;
129 informat=str2fmt(*(++argv));
131 else if (strcmp(*argv,"-outform") == 0)
133 if (--argc < 1) goto bad;
134 outformat=str2fmt(*(++argv));
136 else if (strcmp(*argv,"-in") == 0)
138 if (--argc < 1) goto bad;
141 else if (strcmp(*argv,"-out") == 0)
143 if (--argc < 1) goto bad;
146 #ifndef OPENSSL_NO_ENGINE
147 else if(strcmp(*argv, "-engine") == 0)
149 if (--argc < 1) goto bad;
153 else if (strcmp(*argv,"-text") == 0)
155 else if (strcmp(*argv,"-C") == 0)
157 else if (strcmp(*argv,"-genkey") == 0)
162 else if (strcmp(*argv,"-rand") == 0)
164 if (--argc < 1) goto bad;
168 else if (strcmp(*argv,"-noout") == 0)
170 else if (sscanf(*argv,"%d",&num) == 1)
178 BIO_printf(bio_err,"unknown option %s\n",*argv);
189 BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
190 BIO_printf(bio_err,"where options are\n");
191 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
192 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
193 BIO_printf(bio_err," -in arg input file\n");
194 BIO_printf(bio_err," -out arg output file\n");
195 BIO_printf(bio_err," -text print as text\n");
196 BIO_printf(bio_err," -C Output C code\n");
197 BIO_printf(bio_err," -noout no output\n");
198 BIO_printf(bio_err," -genkey generate a DSA key\n");
199 BIO_printf(bio_err," -rand files to use for random number input\n");
200 #ifndef OPENSSL_NO_ENGINE
201 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
203 BIO_printf(bio_err," number number of bits to use for generating private key\n");
207 ERR_load_crypto_strings();
209 in=BIO_new(BIO_s_file());
210 out=BIO_new(BIO_s_file());
211 if ((in == NULL) || (out == NULL))
213 ERR_print_errors(bio_err);
218 BIO_set_fp(in,stdin,BIO_NOCLOSE);
221 if (BIO_read_filename(in,infile) <= 0)
229 BIO_set_fp(out,stdout,BIO_NOCLOSE);
230 #ifdef OPENSSL_SYS_VMS
232 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
233 out = BIO_push(tmpbio, out);
239 if (BIO_write_filename(out,outfile) <= 0)
246 #ifndef OPENSSL_NO_ENGINE
247 e = setup_engine(bio_err, engine, 0);
252 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
254 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
255 app_RAND_load_files(inrand));
261 BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num);
262 BIO_printf(bio_err,"This could take some time\n");
263 dsa=DSA_generate_parameters(num,NULL,0,NULL,NULL, dsa_cb,bio_err);
265 else if (informat == FORMAT_ASN1)
266 dsa=d2i_DSAparams_bio(in,NULL);
267 else if (informat == FORMAT_PEM)
268 dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL);
271 BIO_printf(bio_err,"bad input format specified\n");
276 BIO_printf(bio_err,"unable to load DSA parameters\n");
277 ERR_print_errors(bio_err);
283 DSAparams_print(out,dsa);
289 int l,len,bits_p,bits_q,bits_g;
291 len=BN_num_bytes(dsa->p);
292 bits_p=BN_num_bits(dsa->p);
293 bits_q=BN_num_bits(dsa->q);
294 bits_g=BN_num_bits(dsa->g);
295 data=(unsigned char *)OPENSSL_malloc(len+20);
298 perror("OPENSSL_malloc");
301 l=BN_bn2bin(dsa->p,data);
302 printf("static unsigned char dsa%d_p[]={",bits_p);
305 if ((i%12) == 0) printf("\n\t");
306 printf("0x%02X,",data[i]);
310 l=BN_bn2bin(dsa->q,data);
311 printf("static unsigned char dsa%d_q[]={",bits_p);
314 if ((i%12) == 0) printf("\n\t");
315 printf("0x%02X,",data[i]);
319 l=BN_bn2bin(dsa->g,data);
320 printf("static unsigned char dsa%d_g[]={",bits_p);
323 if ((i%12) == 0) printf("\n\t");
324 printf("0x%02X,",data[i]);
326 printf("\n\t};\n\n");
328 printf("DSA *get_dsa%d()\n\t{\n",bits_p);
329 printf("\tDSA *dsa;\n\n");
330 printf("\tif ((dsa=DSA_new()) == NULL) return(NULL);\n");
331 printf("\tdsa->p=BN_bin2bn(dsa%d_p,sizeof(dsa%d_p),NULL);\n",
333 printf("\tdsa->q=BN_bin2bn(dsa%d_q,sizeof(dsa%d_q),NULL);\n",
335 printf("\tdsa->g=BN_bin2bn(dsa%d_g,sizeof(dsa%d_g),NULL);\n",
337 printf("\tif ((dsa->p == NULL) || (dsa->q == NULL) || (dsa->g == NULL))\n");
338 printf("\t\t{ DSA_free(dsa); return(NULL); }\n");
339 printf("\treturn(dsa);\n\t}\n");
345 if (outformat == FORMAT_ASN1)
346 i=i2d_DSAparams_bio(out,dsa);
347 else if (outformat == FORMAT_PEM)
348 i=PEM_write_bio_DSAparams(out,dsa);
350 BIO_printf(bio_err,"bad output format specified for outfile\n");
355 BIO_printf(bio_err,"unable to write DSA parameters\n");
356 ERR_print_errors(bio_err);
365 if ((dsakey=DSAparams_dup(dsa)) == NULL) goto end;
366 if (!DSA_generate_key(dsakey)) goto end;
367 if (outformat == FORMAT_ASN1)
368 i=i2d_DSAPrivateKey_bio(out,dsakey);
369 else if (outformat == FORMAT_PEM)
370 i=PEM_write_bio_DSAPrivateKey(out,dsakey,NULL,NULL,0,NULL,NULL);
372 BIO_printf(bio_err,"bad output format specified for outfile\n");
378 app_RAND_write_file(NULL, bio_err);
381 if (in != NULL) BIO_free(in);
382 if (out != NULL) BIO_free_all(out);
383 if (dsa != NULL) DSA_free(dsa);
388 static void MS_CALLBACK dsa_cb(int p, int n, void *arg)
397 (void)BIO_flush(arg);