Import OpenSSL 0.9.8a
[dragonfly.git] / crypto / openssl-0.9 / apps / genrsa.c
CommitLineData
56276539
SS
1/* apps/genrsa.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
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.
8 *
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).
15 *
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.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
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)"
40 *
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
51 * SUCH DAMAGE.
52 *
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.]
57 */
58
5bd86ce5 59#include <openssl/opensslconf.h>
56276539
SS
60/* Until the key-gen callbacks are modified to use newer prototypes, we allow
61 * deprecated functions for openssl-internal code */
62#ifdef OPENSSL_NO_DEPRECATED
63#undef OPENSSL_NO_DEPRECATED
64#endif
65
66#ifndef OPENSSL_NO_RSA
67#include <stdio.h>
68#include <string.h>
69#include <sys/types.h>
70#include <sys/stat.h>
71#include "apps.h"
72#include <openssl/bio.h>
73#include <openssl/err.h>
74#include <openssl/bn.h>
75#include <openssl/rsa.h>
76#include <openssl/evp.h>
77#include <openssl/x509.h>
78#include <openssl/pem.h>
79#include <openssl/rand.h>
80
81#define DEFBITS 512
82#undef PROG
83#define PROG genrsa_main
84
85static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb);
86
87int MAIN(int, char **);
88
89int MAIN(int argc, char **argv)
90 {
91 BN_GENCB cb;
92#ifndef OPENSSL_NO_ENGINE
93 ENGINE *e = NULL;
94#endif
95 int ret=1;
96 int i,num=DEFBITS;
97 long l;
98 const EVP_CIPHER *enc=NULL;
99 unsigned long f4=RSA_F4;
100 char *outfile=NULL;
101 char *passargout = NULL, *passout = NULL;
102#ifndef OPENSSL_NO_ENGINE
103 char *engine=NULL;
104#endif
105 char *inrand=NULL;
106 BIO *out=NULL;
107 BIGNUM *bn = BN_new();
108 RSA *rsa = RSA_new();
109
110 if(!bn || !rsa) goto err;
111
112 apps_startup();
113 BN_GENCB_set(&cb, genrsa_cb, bio_err);
114
115 if (bio_err == NULL)
116 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
117 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
118
119 if (!load_config(bio_err, NULL))
120 goto err;
121 if ((out=BIO_new(BIO_s_file())) == NULL)
122 {
123 BIO_printf(bio_err,"unable to create BIO for output\n");
124 goto err;
125 }
126
127 argv++;
128 argc--;
129 for (;;)
130 {
131 if (argc <= 0) break;
132 if (strcmp(*argv,"-out") == 0)
133 {
134 if (--argc < 1) goto bad;
135 outfile= *(++argv);
136 }
137 else if (strcmp(*argv,"-3") == 0)
138 f4=3;
139 else if (strcmp(*argv,"-F4") == 0 || strcmp(*argv,"-f4") == 0)
140 f4=RSA_F4;
141#ifndef OPENSSL_NO_ENGINE
142 else if (strcmp(*argv,"-engine") == 0)
143 {
144 if (--argc < 1) goto bad;
145 engine= *(++argv);
146 }
147#endif
148 else if (strcmp(*argv,"-rand") == 0)
149 {
150 if (--argc < 1) goto bad;
151 inrand= *(++argv);
152 }
153#ifndef OPENSSL_NO_DES
154 else if (strcmp(*argv,"-des") == 0)
155 enc=EVP_des_cbc();
156 else if (strcmp(*argv,"-des3") == 0)
157 enc=EVP_des_ede3_cbc();
158#endif
159#ifndef OPENSSL_NO_IDEA
160 else if (strcmp(*argv,"-idea") == 0)
161 enc=EVP_idea_cbc();
162#endif
163#ifndef OPENSSL_NO_AES
164 else if (strcmp(*argv,"-aes128") == 0)
165 enc=EVP_aes_128_cbc();
166 else if (strcmp(*argv,"-aes192") == 0)
167 enc=EVP_aes_192_cbc();
168 else if (strcmp(*argv,"-aes256") == 0)
169 enc=EVP_aes_256_cbc();
170#endif
171 else if (strcmp(*argv,"-passout") == 0)
172 {
173 if (--argc < 1) goto bad;
174 passargout= *(++argv);
175 }
176 else
177 break;
178 argv++;
179 argc--;
180 }
181 if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
182 {
183bad:
184 BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
185 BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n");
186 BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
187#ifndef OPENSSL_NO_IDEA
188 BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n");
189#endif
190#ifndef OPENSSL_NO_AES
191 BIO_printf(bio_err," -aes128, -aes192, -aes256\n");
192 BIO_printf(bio_err," encrypt PEM output with cbc aes\n");
193#endif
194 BIO_printf(bio_err," -out file output the key to 'file\n");
195 BIO_printf(bio_err," -passout arg output file pass phrase source\n");
196 BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n");
197 BIO_printf(bio_err," -3 use 3 for the E value\n");
198#ifndef OPENSSL_NO_ENGINE
199 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
200#endif
201 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
202 BIO_printf(bio_err," load the file (or the files in the directory) into\n");
203 BIO_printf(bio_err," the random number generator\n");
204 goto err;
205 }
206
207 ERR_load_crypto_strings();
208
209 if(!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
210 BIO_printf(bio_err, "Error getting password\n");
211 goto err;
212 }
213
214#ifndef OPENSSL_NO_ENGINE
215 e = setup_engine(bio_err, engine, 0);
216#endif
217
218 if (outfile == NULL)
219 {
220 BIO_set_fp(out,stdout,BIO_NOCLOSE);
221#ifdef OPENSSL_SYS_VMS
222 {
223 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
224 out = BIO_push(tmpbio, out);
225 }
226#endif
227 }
228 else
229 {
230 if (BIO_write_filename(out,outfile) <= 0)
231 {
232 perror(outfile);
233 goto err;
234 }
235 }
236
237 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
238 && !RAND_status())
239 {
240 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
241 }
242 if (inrand != NULL)
243 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
244 app_RAND_load_files(inrand));
245
246 BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
247 num);
248
249 if(!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb))
250 goto err;
251
252 app_RAND_write_file(NULL, bio_err);
253
254 /* We need to do the following for when the base number size is <
255 * long, esp windows 3.1 :-(. */
256 l=0L;
257 for (i=0; i<rsa->e->top; i++)
258 {
259#ifndef SIXTY_FOUR_BIT
260 l<<=BN_BITS4;
261 l<<=BN_BITS4;
262#endif
263 l+=rsa->e->d[i];
264 }
265 BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
266 {
267 PW_CB_DATA cb_data;
268 cb_data.password = passout;
269 cb_data.prompt_info = outfile;
270 if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,
271 (pem_password_cb *)password_callback,&cb_data))
272 goto err;
273 }
274
275 ret=0;
276err:
277 if (bn) BN_free(bn);
278 if (rsa) RSA_free(rsa);
279 if (out) BIO_free_all(out);
280 if(passout) OPENSSL_free(passout);
281 if (ret != 0)
282 ERR_print_errors(bio_err);
283 apps_shutdown();
284 OPENSSL_EXIT(ret);
285 }
286
287static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb)
288 {
289 char c='*';
290
291 if (p == 0) c='.';
292 if (p == 1) c='+';
293 if (p == 2) c='*';
294 if (p == 3) c='\n';
295 BIO_write(cb->arg,&c,1);
296 (void)BIO_flush(cb->arg);
297#ifdef LINT
298 p=n;
299#endif
300 return 1;
301 }
302#else /* !OPENSSL_NO_RSA */
303
304# if PEDANTIC
305static void *dummy=&dummy;
306# endif
307
308#endif