Branch data Line data Source code
1 : : /* apps/gendh.c */
2 : : /* obsoleted by dhparam.c */
3 : : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 : : * All rights reserved.
5 : : *
6 : : * This package is an SSL implementation written
7 : : * by Eric Young (eay@cryptsoft.com).
8 : : * The implementation was written so as to conform with Netscapes SSL.
9 : : *
10 : : * This library is free for commercial and non-commercial use as long as
11 : : * the following conditions are aheared to. The following conditions
12 : : * apply to all code found in this distribution, be it the RC4, RSA,
13 : : * lhash, DES, etc., code; not just the SSL code. The SSL documentation
14 : : * included with this distribution is covered by the same copyright terms
15 : : * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 : : *
17 : : * Copyright remains Eric Young's, and as such any Copyright notices in
18 : : * the code are not to be removed.
19 : : * If this package is used in a product, Eric Young should be given attribution
20 : : * as the author of the parts of the library used.
21 : : * This can be in the form of a textual message at program startup or
22 : : * in documentation (online or textual) provided with the package.
23 : : *
24 : : * Redistribution and use in source and binary forms, with or without
25 : : * modification, are permitted provided that the following conditions
26 : : * are met:
27 : : * 1. Redistributions of source code must retain the copyright
28 : : * notice, this list of conditions and the following disclaimer.
29 : : * 2. Redistributions in binary form must reproduce the above copyright
30 : : * notice, this list of conditions and the following disclaimer in the
31 : : * documentation and/or other materials provided with the distribution.
32 : : * 3. All advertising materials mentioning features or use of this software
33 : : * must display the following acknowledgement:
34 : : * "This product includes cryptographic software written by
35 : : * Eric Young (eay@cryptsoft.com)"
36 : : * The word 'cryptographic' can be left out if the rouines from the library
37 : : * being used are not cryptographic related :-).
38 : : * 4. If you include any Windows specific code (or a derivative thereof) from
39 : : * the apps directory (application code) you must include an acknowledgement:
40 : : * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 : : *
42 : : * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
43 : : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45 : : * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
46 : : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47 : : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48 : : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50 : : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51 : : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 : : * SUCH DAMAGE.
53 : : *
54 : : * The licence and distribution terms for any publically available version or
55 : : * derivative of this code cannot be changed. i.e. this code cannot simply be
56 : : * copied and put under another distribution licence
57 : : * [including the GNU Public Licence.]
58 : : */
59 : :
60 : : #include <openssl/opensslconf.h>
61 : : /* Until the key-gen callbacks are modified to use newer prototypes, we allow
62 : : * deprecated functions for openssl-internal code */
63 : : #ifdef OPENSSL_NO_DEPRECATED
64 : : #undef OPENSSL_NO_DEPRECATED
65 : : #endif
66 : :
67 : : #ifndef OPENSSL_NO_DH
68 : : #include <stdio.h>
69 : : #include <string.h>
70 : : #include <sys/types.h>
71 : : #include <sys/stat.h>
72 : : #include "apps.h"
73 : : #include <openssl/bio.h>
74 : : #include <openssl/rand.h>
75 : : #include <openssl/err.h>
76 : : #include <openssl/bn.h>
77 : : #include <openssl/dh.h>
78 : : #include <openssl/x509.h>
79 : : #include <openssl/pem.h>
80 : :
81 : : #define DEFBITS 512
82 : : #undef PROG
83 : : #define PROG gendh_main
84 : :
85 : : static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb);
86 : :
87 : : int MAIN(int, char **);
88 : :
89 : 0 : int MAIN(int argc, char **argv)
90 : : {
91 : : BN_GENCB cb;
92 : 0 : DH *dh=NULL;
93 : 0 : int ret=1,num=DEFBITS;
94 : 0 : int g=2;
95 : 0 : char *outfile=NULL;
96 : 0 : char *inrand=NULL;
97 : : #ifndef OPENSSL_NO_ENGINE
98 : 0 : char *engine=NULL;
99 : : #endif
100 : 0 : BIO *out=NULL;
101 : :
102 : 0 : apps_startup();
103 : :
104 : 0 : BN_GENCB_set(&cb, dh_cb, bio_err);
105 [ # # ]: 0 : if (bio_err == NULL)
106 [ # # ]: 0 : if ((bio_err=BIO_new(BIO_s_file())) != NULL)
107 : 0 : BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
108 : :
109 [ # # ]: 0 : if (!load_config(bio_err, NULL))
110 : : goto end;
111 : :
112 : 0 : argv++;
113 : 0 : argc--;
114 : : for (;;)
115 : : {
116 [ # # ]: 0 : if (argc <= 0) break;
117 [ # # ]: 0 : if (strcmp(*argv,"-out") == 0)
118 : : {
119 [ # # ]: 0 : if (--argc < 1) goto bad;
120 : 0 : outfile= *(++argv);
121 : : }
122 [ # # ]: 0 : else if (strcmp(*argv,"-2") == 0)
123 : : g=2;
124 : : /* else if (strcmp(*argv,"-3") == 0)
125 : : g=3; */
126 [ # # ]: 0 : else if (strcmp(*argv,"-5") == 0)
127 : : g=5;
128 : : #ifndef OPENSSL_NO_ENGINE
129 [ # # ]: 0 : else if (strcmp(*argv,"-engine") == 0)
130 : : {
131 [ # # ]: 0 : if (--argc < 1) goto bad;
132 : 0 : engine= *(++argv);
133 : : }
134 : : #endif
135 [ # # ]: 0 : else if (strcmp(*argv,"-rand") == 0)
136 : : {
137 [ # # ]: 0 : if (--argc < 1) goto bad;
138 : 0 : inrand= *(++argv);
139 : : }
140 : : else
141 : : break;
142 : 0 : argv++;
143 : 0 : argc--;
144 : 0 : }
145 [ # # ][ # # ]: 0 : if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
[ # # ]
146 : : {
147 : : bad:
148 : 0 : BIO_printf(bio_err,"usage: gendh [args] [numbits]\n");
149 : 0 : BIO_printf(bio_err," -out file - output the key to 'file\n");
150 : 0 : BIO_printf(bio_err," -2 - use 2 as the generator value\n");
151 : : /* BIO_printf(bio_err," -3 - use 3 as the generator value\n"); */
152 : 0 : BIO_printf(bio_err," -5 - use 5 as the generator value\n");
153 : : #ifndef OPENSSL_NO_ENGINE
154 : 0 : BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n");
155 : : #endif
156 : 0 : BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
157 : 0 : BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
158 : 0 : BIO_printf(bio_err," the random number generator\n");
159 : 0 : goto end;
160 : : }
161 : :
162 : : #ifndef OPENSSL_NO_ENGINE
163 : 0 : setup_engine(bio_err, engine, 0);
164 : : #endif
165 : :
166 : 0 : out=BIO_new(BIO_s_file());
167 [ # # ]: 0 : if (out == NULL)
168 : : {
169 : 0 : ERR_print_errors(bio_err);
170 : 0 : goto end;
171 : : }
172 : :
173 [ # # ]: 0 : if (outfile == NULL)
174 : : {
175 : 0 : BIO_set_fp(out,stdout,BIO_NOCLOSE);
176 : : #ifdef OPENSSL_SYS_VMS
177 : : {
178 : : BIO *tmpbio = BIO_new(BIO_f_linebuffer());
179 : : out = BIO_push(tmpbio, out);
180 : : }
181 : : #endif
182 : : }
183 : : else
184 : : {
185 [ # # ]: 0 : if (BIO_write_filename(out,outfile) <= 0)
186 : : {
187 : 0 : perror(outfile);
188 : 0 : goto end;
189 : : }
190 : : }
191 : :
192 [ # # ][ # # ]: 0 : if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
193 : : {
194 : 0 : BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
195 : : }
196 [ # # ]: 0 : if (inrand != NULL)
197 : 0 : BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
198 : : app_RAND_load_files(inrand));
199 : :
200 : 0 : BIO_printf(bio_err,"Generating DH parameters, %d bit long safe prime, generator %d\n",num,g);
201 : 0 : BIO_printf(bio_err,"This is going to take a long time\n");
202 : :
203 [ # # ][ # # ]: 0 : if(((dh = DH_new()) == NULL) || !DH_generate_parameters_ex(dh, num, g, &cb))
204 : : goto end;
205 : :
206 : 0 : app_RAND_write_file(NULL, bio_err);
207 : :
208 [ # # ]: 0 : if (!PEM_write_bio_DHparams(out,dh))
209 : : goto end;
210 : 0 : ret=0;
211 : : end:
212 [ # # ]: 0 : if (ret != 0)
213 : 0 : ERR_print_errors(bio_err);
214 [ # # ]: 0 : if (out != NULL) BIO_free_all(out);
215 [ # # ]: 0 : if (dh != NULL) DH_free(dh);
216 : : apps_shutdown();
217 : 0 : OPENSSL_EXIT(ret);
218 : : }
219 : :
220 : 0 : static int MS_CALLBACK dh_cb(int p, int n, BN_GENCB *cb)
221 : : {
222 : 0 : char c='*';
223 : :
224 [ # # ]: 0 : if (p == 0) c='.';
225 [ # # ]: 0 : if (p == 1) c='+';
226 [ # # ]: 0 : if (p == 2) c='*';
227 [ # # ]: 0 : if (p == 3) c='\n';
228 : 0 : BIO_write(cb->arg,&c,1);
229 : 0 : (void)BIO_flush(cb->arg);
230 : : #ifdef LINT
231 : : p=n;
232 : : #endif
233 : 0 : return 1;
234 : : }
235 : : #else /* !OPENSSL_NO_DH */
236 : :
237 : : # if PEDANTIC
238 : : static void *dummy=&dummy;
239 : : # endif
240 : :
241 : : #endif
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