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58964a49 | 1 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
2 | * All rights reserved. |
3 | * | |
4 | * This package is an SSL implementation written | |
5 | * by Eric Young (eay@cryptsoft.com). | |
6 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 7 | * |
d02b48c6 RE |
8 | * This library is free for commercial and non-commercial use as long as |
9 | * the following conditions are aheared to. The following conditions | |
10 | * apply to all code found in this distribution, be it the RC4, RSA, | |
11 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
12 | * included with this distribution is covered by the same copyright terms | |
13 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 14 | * |
d02b48c6 RE |
15 | * Copyright remains Eric Young's, and as such any Copyright notices in |
16 | * the code are not to be removed. | |
17 | * If this package is used in a product, Eric Young should be given attribution | |
18 | * as the author of the parts of the library used. | |
19 | * This can be in the form of a textual message at program startup or | |
20 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 21 | * |
d02b48c6 RE |
22 | * Redistribution and use in source and binary forms, with or without |
23 | * modification, are permitted provided that the following conditions | |
24 | * are met: | |
25 | * 1. Redistributions of source code must retain the copyright | |
26 | * notice, this list of conditions and the following disclaimer. | |
27 | * 2. Redistributions in binary form must reproduce the above copyright | |
28 | * notice, this list of conditions and the following disclaimer in the | |
29 | * documentation and/or other materials provided with the distribution. | |
30 | * 3. All advertising materials mentioning features or use of this software | |
31 | * must display the following acknowledgement: | |
32 | * "This product includes cryptographic software written by | |
33 | * Eric Young (eay@cryptsoft.com)" | |
34 | * The word 'cryptographic' can be left out if the rouines from the library | |
35 | * being used are not cryptographic related :-). | |
0f113f3e | 36 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
37 | * the apps directory (application code) you must include an acknowledgement: |
38 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 39 | * |
d02b48c6 RE |
40 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
41 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
42 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
43 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
44 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
45 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
46 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
48 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
49 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
50 | * SUCH DAMAGE. | |
0f113f3e | 51 | * |
d02b48c6 RE |
52 | * The licence and distribution terms for any publically available version or |
53 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
54 | * copied and put under another distribution licence | |
55 | * [including the GNU Public Licence.] | |
56 | */ | |
57 | ||
0f113f3e | 58 | #include <openssl/opensslconf.h> /* for OPENSSL_NO_DSA */ |
cf1b7d96 | 59 | #ifndef OPENSSL_NO_DSA |
0f113f3e MC |
60 | # include <stdio.h> |
61 | # include <string.h> | |
62 | # include <sys/types.h> | |
63 | # include <sys/stat.h> | |
64 | # include "apps.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> | |
d02b48c6 | 71 | |
0f113f3e | 72 | # define DEFBITS 512 |
d02b48c6 | 73 | |
7e1b7485 RS |
74 | typedef enum OPTION_choice { |
75 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
76 | OPT_OUT, OPT_PASSOUT, OPT_ENGINE, OPT_RAND, OPT_CIPHER | |
77 | } OPTION_CHOICE; | |
78 | ||
79 | OPTIONS gendsa_options[] = { | |
80 | {OPT_HELP_STR, 1, '-', "Usage: %s [args] dsaparam-file\n"}, | |
81 | {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, | |
82 | {"help", OPT_HELP, '-', "Display this summary"}, | |
83 | {"out", OPT_OUT, '>', "Output the key to the specified file"}, | |
84 | {"passout", OPT_PASSOUT, 's'}, | |
85 | {"rand", OPT_RAND, 's', | |
86 | "Load the file(s) into the random number generator"}, | |
9c3bcfa0 | 87 | {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"}, |
7e1b7485 RS |
88 | # ifndef OPENSSL_NO_ENGINE |
89 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
90 | # endif | |
7e1b7485 RS |
91 | {NULL} |
92 | }; | |
667ac4ec | 93 | |
7e1b7485 | 94 | int gendsa_main(int argc, char **argv) |
0f113f3e | 95 | { |
0f113f3e | 96 | BIO *out = NULL, *in = NULL; |
7e1b7485 | 97 | DSA *dsa = NULL; |
0f113f3e | 98 | const EVP_CIPHER *enc = NULL; |
333b070e | 99 | char *inrand = NULL, *dsaparams = NULL; |
7e1b7485 RS |
100 | char *outfile = NULL, *passoutarg = NULL, *passout = NULL, *prog; |
101 | OPTION_CHOICE o; | |
102 | int ret = 1; | |
d02b48c6 | 103 | |
7e1b7485 RS |
104 | prog = opt_init(argc, argv, gendsa_options); |
105 | while ((o = opt_next()) != OPT_EOF) { | |
106 | switch (o) { | |
107 | case OPT_EOF: | |
108 | case OPT_ERR: | |
109 | opthelp: | |
110 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
111 | goto end; | |
112 | case OPT_HELP: | |
113 | ret = 0; | |
114 | opt_help(gendsa_options); | |
115 | goto end; | |
116 | case OPT_OUT: | |
117 | outfile = opt_arg(); | |
118 | break; | |
119 | case OPT_PASSOUT: | |
120 | passoutarg = opt_arg(); | |
121 | break; | |
122 | case OPT_ENGINE: | |
333b070e | 123 | (void)setup_engine(opt_arg(), 0); |
7e1b7485 RS |
124 | break; |
125 | case OPT_RAND: | |
126 | inrand = opt_arg(); | |
127 | break; | |
128 | case OPT_CIPHER: | |
129 | if (!opt_cipher(opt_unknown(), &enc)) | |
130 | goto end; | |
0f113f3e | 131 | break; |
0f113f3e | 132 | } |
0f113f3e | 133 | } |
7e1b7485 RS |
134 | argc = opt_num_rest(); |
135 | argv = opt_rest(); | |
136 | ||
137 | if (argc != 1) | |
138 | goto opthelp; | |
139 | dsaparams = *argv; | |
d02b48c6 | 140 | |
7e1b7485 | 141 | if (!app_passwd(NULL, passoutarg, NULL, &passout)) { |
0f113f3e MC |
142 | BIO_printf(bio_err, "Error getting password\n"); |
143 | goto end; | |
144 | } | |
a3fe382e | 145 | |
296f54ee RL |
146 | if (!app_load_modules(NULL)) |
147 | goto end; | |
148 | ||
7e1b7485 RS |
149 | in = bio_open_default(dsaparams, "r"); |
150 | if (in == NULL) | |
151 | goto end2; | |
a3fe382e | 152 | |
0f113f3e MC |
153 | if ((dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL)) == NULL) { |
154 | BIO_printf(bio_err, "unable to load DSA parameter file\n"); | |
155 | goto end; | |
156 | } | |
157 | BIO_free(in); | |
158 | in = NULL; | |
d02b48c6 | 159 | |
7e1b7485 | 160 | out = bio_open_default(outfile, "w"); |
0f113f3e | 161 | if (out == NULL) |
7e1b7485 | 162 | goto end2; |
d02b48c6 | 163 | |
7e1b7485 | 164 | if (!app_RAND_load_file(NULL, 1) && inrand == NULL) { |
0f113f3e MC |
165 | BIO_printf(bio_err, |
166 | "warning, not much extra random data, consider using the -rand option\n"); | |
167 | } | |
168 | if (inrand != NULL) | |
169 | BIO_printf(bio_err, "%ld semi-random bytes loaded\n", | |
170 | app_RAND_load_files(inrand)); | |
d02b48c6 | 171 | |
0f113f3e MC |
172 | BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(dsa->p)); |
173 | if (!DSA_generate_key(dsa)) | |
174 | goto end; | |
d02b48c6 | 175 | |
7e1b7485 | 176 | app_RAND_write_file(NULL); |
d02b48c6 | 177 | |
0f113f3e MC |
178 | if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout)) |
179 | goto end; | |
180 | ret = 0; | |
181 | end: | |
182 | if (ret != 0) | |
183 | ERR_print_errors(bio_err); | |
7e1b7485 | 184 | end2: |
ca3a82c3 RS |
185 | BIO_free(in); |
186 | BIO_free_all(out); | |
d6407083 | 187 | DSA_free(dsa); |
b548a1f1 | 188 | OPENSSL_free(passout); |
7e1b7485 | 189 | return (ret); |
0f113f3e MC |
190 | } |
191 | #else /* !OPENSSL_NO_DSA */ | |
d4f0339c DSH |
192 | |
193 | # if PEDANTIC | |
0f113f3e | 194 | static void *dummy = &dummy; |
d4f0339c DSH |
195 | # endif |
196 | ||
f5d7a031 | 197 | #endif |