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/err.h>
67 #include <openssl/bn.h>
68 #include <openssl/rsa.h>
69 #include <openssl/evp.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
75 #define PROG genrsa_main
77 static void MS_CALLBACK genrsa_cb(int p, int n, void *arg);
78 int MAIN(int argc, char **argv)
85 unsigned long f4=RSA_F4;
94 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
95 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
96 if ((out=BIO_new(BIO_s_file())) == NULL)
98 BIO_printf(bio_err,"unable to create BIO for output\n");
106 if (argc <= 0) break;
107 if (strcmp(*argv,"-out") == 0)
109 if (--argc < 1) goto bad;
112 else if (strcmp(*argv,"-3") == 0)
114 else if (strcmp(*argv,"-F4") == 0)
116 else if (strcmp(*argv,"-rand") == 0)
118 if (--argc < 1) goto bad;
122 else if (strcmp(*argv,"-des") == 0)
124 else if (strcmp(*argv,"-des3") == 0)
125 enc=EVP_des_ede3_cbc();
128 else if (strcmp(*argv,"-idea") == 0)
131 else if (strcmp(*argv,"-envpassout") == 0)
133 if (--argc < 1) goto bad;
134 if(!(passout= getenv(*(++argv))))
137 "Can't read environment variable %s\n",
142 else if (strcmp(*argv,"-passout") == 0)
144 if (--argc < 1) goto bad;
152 if ((argc >= 1) && ((sscanf(*argv,"%d",&num) == 0) || (num < 0)))
155 BIO_printf(bio_err,"usage: genrsa [args] [numbits]\n");
156 BIO_printf(bio_err," -des encrypt the generated key with DES in cbc mode\n");
157 BIO_printf(bio_err," -des3 encrypt the generated key with DES in ede cbc mode (168 bit key)\n");
159 BIO_printf(bio_err," -idea encrypt the generated key with IDEA in cbc mode\n");
161 BIO_printf(bio_err," -out file output the key to 'file\n");
162 BIO_printf(bio_err," -passout arg output file pass phrase\n");
163 BIO_printf(bio_err," -envpassout arg environment variable containing output file pass phrase\n");
164 BIO_printf(bio_err," -f4 use F4 (0x10001) for the E value\n");
165 BIO_printf(bio_err," -3 use 3 for the E value\n");
166 BIO_printf(bio_err," -rand file:file:...\n");
167 BIO_printf(bio_err," load the file (or the files in the directory) into\n");
168 BIO_printf(bio_err," the random number generator\n");
172 ERR_load_crypto_strings();
174 BIO_set_fp(out,stdout,BIO_NOCLOSE);
177 if (BIO_write_filename(out,outfile) <= 0)
184 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
186 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
189 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
190 app_RAND_load_files(inrand));
192 BIO_printf(bio_err,"Generating RSA private key, %d bit long modulus\n",
194 rsa=RSA_generate_key(num,f4,genrsa_cb,bio_err);
196 app_RAND_write_file(NULL, bio_err);
198 if (rsa == NULL) goto err;
200 /* We need to do the following for when the base number size is <
201 * long, esp windows 3.1 :-(. */
203 for (i=0; i<rsa->e->top; i++)
205 #ifndef SIXTY_FOUR_BIT
211 BIO_printf(bio_err,"e is %ld (0x%lX)\n",l,l);
212 if (!PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,PEM_cb, passout))
217 if (rsa != NULL) RSA_free(rsa);
218 if (out != NULL) BIO_free(out);
220 ERR_print_errors(bio_err);
224 static void MS_CALLBACK genrsa_cb(int p, int n, void *arg)
232 BIO_write((BIO *)arg,&c,1);
233 (void)BIO_flush((BIO *)arg);
241 static void *dummy=&dummy;