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/rand.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>
75 #define PROG gendsa_main
77 static long dsa_load_rand(char *names);
78 int MAIN(int argc, char **argv)
84 char *inrand=NULL,*randfile,*dsaparams=NULL;
85 BIO *out=NULL,*in=NULL;
91 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
92 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
99 if (strcmp(*argv,"-out") == 0)
101 if (--argc < 1) goto bad;
104 else if (strcmp(*argv,"-rand") == 0)
106 if (--argc < 1) goto bad;
109 else if (strcmp(*argv,"-") == 0)
112 else if (strcmp(*argv,"-des") == 0)
114 else if (strcmp(*argv,"-des3") == 0)
115 enc=EVP_des_ede3_cbc();
118 else if (strcmp(*argv,"-idea") == 0)
121 else if (**argv != '-' && dsaparams == NULL)
131 if (dsaparams == NULL)
134 BIO_printf(bio_err,"usage: gendsa [args] dsaparam-file\n");
135 BIO_printf(bio_err," -out file - output the key to 'file'\n");
137 BIO_printf(bio_err," -des - encrypt the generated key with DES in cbc mode\n");
138 BIO_printf(bio_err," -des3 - encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
141 BIO_printf(bio_err," -idea - encrypt the generated key with IDEA in cbc mode\n");
143 BIO_printf(bio_err," -rand file:file:...\n");
144 BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
145 BIO_printf(bio_err," the random number generator\n");
146 BIO_printf(bio_err," dsaparam-file\n");
147 BIO_printf(bio_err," - a DSA parameter file as generated by the dsaparam command\n");
151 in=BIO_new(BIO_s_file());
152 if (!(BIO_read_filename(in,dsaparams)))
158 if ((dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL)) == NULL)
160 BIO_printf(bio_err,"unable to load DSA parameter file\n");
165 out=BIO_new(BIO_s_file());
166 if (out == NULL) goto end;
169 BIO_set_fp(out,stdout,BIO_NOCLOSE);
172 if (BIO_write_filename(out,outfile) <= 0)
179 randfile=RAND_file_name(buffer,200);
180 if ((randfile == NULL)|| !RAND_load_file(randfile,1024L*1024L))
181 BIO_printf(bio_err,"unable to load 'random state'\n");
184 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
187 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
188 dsa_load_rand(inrand));
191 BIO_printf(bio_err,"Generating DSA key, %d bits\n",
192 BN_num_bits(dsa->p));
193 if (!DSA_generate_key(dsa)) goto end;
195 if (randfile == NULL)
196 BIO_printf(bio_err,"unable to write 'random state'\n");
198 RAND_write_file(randfile);
200 if (!PEM_write_bio_DSAPrivateKey(out,dsa,enc,NULL,0,NULL,NULL))
205 ERR_print_errors(bio_err);
206 if (out != NULL) BIO_free(out);
207 if (dsa != NULL) DSA_free(dsa);
211 static long dsa_load_rand(char *name)
220 for (p=name; ((*p != '\0') && (*p != LIST_SEPARATOR_CHAR)); p++);
221 if (*p == '\0') last=1;
225 if (*n == '\0') break;
227 tot+=RAND_load_file(n,1);