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.]
62 #include <sys/types.h>
65 #include <openssl/bio.h>
66 #include <openssl/err.h>
67 #include <openssl/bn.h>
68 #include <openssl/dsa.h>
69 #include <openssl/x509.h>
70 #include <openssl/pem.h>
74 #define PROG gendsa_main
76 int MAIN(int argc, char **argv)
81 char *inrand=NULL,*dsaparams=NULL;
82 BIO *out=NULL,*in=NULL;
88 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
89 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
96 if (strcmp(*argv,"-out") == 0)
98 if (--argc < 1) goto bad;
101 else if (strcmp(*argv,"-rand") == 0)
103 if (--argc < 1) goto bad;
106 else if (strcmp(*argv,"-") == 0)
109 else if (strcmp(*argv,"-des") == 0)
111 else if (strcmp(*argv,"-des3") == 0)
112 enc=EVP_des_ede3_cbc();
115 else if (strcmp(*argv,"-idea") == 0)
118 else if (**argv != '-' && dsaparams == NULL)
128 if (dsaparams == NULL)
131 BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n");
132 BIO_printf(bio_err," -out file - output the key to 'file'\n");
134 BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n");
135 BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
138 BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
140 BIO_printf(bio_err," -rand file:file:...\n");
141 BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
142 BIO_printf(bio_err," the random number generator\n");
143 BIO_printf(bio_err," dsaparam-file\n");
144 BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n");
148 in=BIO_new(BIO_s_file());
149 if (!(BIO_read_filename(in,dsaparams)))
155 if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
157 BIO_printf(bio_err,"unable to load DSA parameter file\n");
163 out=BIO_new(BIO_s_file());
164 if (out == NULL) goto end;
167 BIO_set_fp(out,stdout,BIO_NOCLOSE);
170 if (BIO_write_filename(out,outfile) <= 0)
177 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
179 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
182 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
183 app_RAND_load_files(inrand));
185 BIO_printf(bio_err,"Generating DSA key, %d bits\n",
186 BN_num_bits(dsa->p));
187 if (!DSA_generate_key(dsa)) goto end;
189 app_RAND_write_file(NULL, bio_err);
191 if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL,NULL))
196 ERR_print_errors(bio_err);
197 if (in != NULL) BIO_free(in);
198 if (out != NULL) BIO_free(out);
199 if (dsa != NULL) DSA_free(dsa);