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.]
59 #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
64 #ifdef OPENSSL_NO_DEPRECATED
65 # undef OPENSSL_NO_DEPRECATED
68 #ifndef OPENSSL_NO_RSA
71 # include <sys/types.h>
72 # include <sys/stat.h>
74 # include <openssl/bio.h>
75 # include <openssl/err.h>
76 # include <openssl/bn.h>
77 # include <openssl/rsa.h>
78 # include <openssl/evp.h>
79 # include <openssl/x509.h>
80 # include <openssl/pem.h>
81 # include <openssl/rand.h>
85 # define PROG genrsa_main
87 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb);
89 int MAIN(int, char **);
91 int MAIN(int argc, char **argv)
98 const EVP_CIPHER *enc = NULL;
99 unsigned long f4 = RSA_F4;
100 char *outfile = NULL;
101 char *passargout = NULL, *passout = NULL;
105 BIGNUM *bn = BN_new();
112 BN_GENCB_set(&cb, genrsa_cb, bio_err);
115 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
116 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
118 if (!load_config(bio_err, NULL))
120 if ((out = BIO_new(BIO_s_file())) == NULL) {
121 BIO_printf(bio_err, "unable to create BIO for output\n");
130 if (strcmp(*argv, "-out") == 0) {
134 } else if (strcmp(*argv, "-3") == 0)
136 else if (strcmp(*argv, "-F4") == 0 || strcmp(*argv, "-f4") == 0)
138 # ifndef OPENSSL_NO_ENGINE
139 else if (strcmp(*argv, "-engine") == 0) {
145 else if (strcmp(*argv, "-rand") == 0) {
150 # ifndef OPENSSL_NO_DES
151 else if (strcmp(*argv, "-des") == 0)
153 else if (strcmp(*argv, "-des3") == 0)
154 enc = EVP_des_ede3_cbc();
156 # ifndef OPENSSL_NO_IDEA
157 else if (strcmp(*argv, "-idea") == 0)
158 enc = EVP_idea_cbc();
160 # ifndef OPENSSL_NO_SEED
161 else if (strcmp(*argv, "-seed") == 0)
162 enc = EVP_seed_cbc();
164 # ifndef OPENSSL_NO_AES
165 else if (strcmp(*argv, "-aes128") == 0)
166 enc = EVP_aes_128_cbc();
167 else if (strcmp(*argv, "-aes192") == 0)
168 enc = EVP_aes_192_cbc();
169 else if (strcmp(*argv, "-aes256") == 0)
170 enc = EVP_aes_256_cbc();
172 # ifndef OPENSSL_NO_CAMELLIA
173 else if (strcmp(*argv, "-camellia128") == 0)
174 enc = EVP_camellia_128_cbc();
175 else if (strcmp(*argv, "-camellia192") == 0)
176 enc = EVP_camellia_192_cbc();
177 else if (strcmp(*argv, "-camellia256") == 0)
178 enc = EVP_camellia_256_cbc();
180 else if (strcmp(*argv, "-passout") == 0) {
183 passargout = *(++argv);
189 if ((argc >= 1) && ((sscanf(*argv, "%d", &num) == 0) || (num < 0))) {
191 BIO_printf(bio_err, "usage: genrsa [args] [numbits]\n");
193 " -des encrypt the generated key with DES in cbc mode\n");
195 " -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
196 # ifndef OPENSSL_NO_IDEA
198 " -idea encrypt the generated key with IDEA in cbc mode\n");
200 # ifndef OPENSSL_NO_SEED
201 BIO_printf(bio_err, " -seed\n");
203 " encrypt PEM output with cbc seed\n");
205 # ifndef OPENSSL_NO_AES
206 BIO_printf(bio_err, " -aes128, -aes192, -aes256\n");
208 " encrypt PEM output with cbc aes\n");
210 # ifndef OPENSSL_NO_CAMELLIA
211 BIO_printf(bio_err, " -camellia128, -camellia192, -camellia256\n");
213 " encrypt PEM output with cbc camellia\n");
215 BIO_printf(bio_err, " -out file output the key to 'file\n");
217 " -passout arg output file pass phrase source\n");
219 " -f4 use F4 (0x10001) for the E value\n");
220 BIO_printf(bio_err, " -3 use 3 for the E value\n");
221 # ifndef OPENSSL_NO_ENGINE
223 " -engine e use engine e, possibly a hardware device.\n");
225 BIO_printf(bio_err, " -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR,
226 LIST_SEPARATOR_CHAR);
228 " load the file (or the files in the directory) into\n");
229 BIO_printf(bio_err, " the random number generator\n");
233 ERR_load_crypto_strings();
235 if (!app_passwd(bio_err, NULL, passargout, NULL, &passout)) {
236 BIO_printf(bio_err, "Error getting password\n");
239 e = setup_engine(bio_err, engine, 0);
241 if (outfile == NULL) {
242 BIO_set_fp(out, stdout, BIO_NOCLOSE);
243 # ifdef OPENSSL_SYS_VMS
245 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
246 out = BIO_push(tmpbio, out);
250 if (BIO_write_filename(out, outfile) <= 0) {
256 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
259 "warning, not much extra random data, consider using the -rand option\n");
262 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
263 app_RAND_load_files(inrand));
265 BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus\n",
267 # ifdef OPENSSL_NO_ENGINE
270 rsa = RSA_new_method(e);
275 if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, &cb))
278 app_RAND_write_file(NULL, bio_err);
281 * We need to do the following for when the base number size is < long,
282 * esp windows 3.1 :-(.
285 for (i = 0; i < rsa->e->top; i++) {
286 # ifndef SIXTY_FOUR_BIT
292 BIO_printf(bio_err, "e is %ld (0x%lX)\n", l, l);
295 cb_data.password = passout;
296 cb_data.prompt_info = outfile;
297 if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0,
298 (pem_password_cb *)password_callback,
313 OPENSSL_free(passout);
315 ERR_print_errors(bio_err);
320 static int MS_CALLBACK genrsa_cb(int p, int n, BN_GENCB *cb)
332 BIO_write(cb->arg, &c, 1);
333 (void)BIO_flush(cb->arg);
339 #else /* !OPENSSL_NO_RSA */
342 static void *dummy = &dummy;