123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241 |
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #include <openssl/opensslconf.h>
- #ifndef OPENSSL_NO_RSA
- # include <stdio.h>
- # include <string.h>
- # include <sys/types.h>
- # include <sys/stat.h>
- # include "apps.h"
- # include <openssl/bio.h>
- # include <openssl/err.h>
- # include <openssl/bn.h>
- # include <openssl/rsa.h>
- # include <openssl/evp.h>
- # include <openssl/x509.h>
- # include <openssl/pem.h>
- # include <openssl/rand.h>
- # define DEFBITS 2048
- static int genrsa_cb(int p, int n, BN_GENCB *cb);
- typedef enum OPTION_choice {
- OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
- OPT_3, OPT_F4, OPT_ENGINE,
- OPT_OUT, OPT_RAND, OPT_PASSOUT, OPT_CIPHER
- } OPTION_CHOICE;
- OPTIONS genrsa_options[] = {
- {"help", OPT_HELP, '-', "Display this summary"},
- {"3", OPT_3, '-', "Use 3 for the E value"},
- {"F4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
- {"f4", OPT_F4, '-', "Use F4 (0x10001) for the E value"},
- {"out", OPT_OUT, 's', "Output the key to specified file"},
- {"rand", OPT_RAND, 's',
- "Load the file(s) into the random number generator"},
- {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
- {"", OPT_CIPHER, '-', "Encrypt the output with any supported cipher"},
- # ifndef OPENSSL_NO_ENGINE
- {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
- # endif
- {NULL}
- };
- int genrsa_main(int argc, char **argv)
- {
- BN_GENCB *cb = BN_GENCB_new();
- PW_CB_DATA cb_data;
- ENGINE *e = NULL;
- BIGNUM *bn = BN_new();
- BIO *out = NULL;
- RSA *rsa = NULL;
- const EVP_CIPHER *enc = NULL;
- int ret = 1, num = DEFBITS, private = 0;
- unsigned long f4 = RSA_F4;
- char *outfile = NULL, *passoutarg = NULL, *passout = NULL;
- char *inrand = NULL, *prog, *hexe, *dece;
- OPTION_CHOICE o;
- if (bn == NULL || cb == NULL)
- goto end;
- BN_GENCB_set(cb, genrsa_cb, bio_err);
- prog = opt_init(argc, argv, genrsa_options);
- while ((o = opt_next()) != OPT_EOF) {
- switch (o) {
- case OPT_EOF:
- case OPT_ERR:
- BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
- goto end;
- case OPT_HELP:
- ret = 0;
- opt_help(genrsa_options);
- goto end;
- case OPT_3:
- f4 = 3;
- break;
- case OPT_F4:
- f4 = RSA_F4;
- break;
- case OPT_OUT:
- outfile = opt_arg();
- break;
- case OPT_ENGINE:
- e = setup_engine(opt_arg(), 0);
- break;
- case OPT_RAND:
- inrand = opt_arg();
- break;
- case OPT_PASSOUT:
- passoutarg = opt_arg();
- break;
- case OPT_CIPHER:
- if (!opt_cipher(opt_unknown(), &enc))
- goto end;
- break;
- }
- }
- argc = opt_num_rest();
- argv = opt_rest();
- private = 1;
- if (argv[0] && (!opt_int(argv[0], &num) || num <= 0))
- goto end;
- if (!app_passwd(NULL, passoutarg, NULL, &passout)) {
- BIO_printf(bio_err, "Error getting password\n");
- goto end;
- }
- out = bio_open_owner(outfile, FORMAT_PEM, private);
- if (out == NULL)
- goto end;
- if (!app_RAND_load_file(NULL, 1) && inrand == NULL
- && !RAND_status()) {
- BIO_printf(bio_err,
- "warning, not much extra random data, consider using the -rand option\n");
- }
- if (inrand != NULL)
- BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
- app_RAND_load_files(inrand));
- BIO_printf(bio_err, "Generating RSA private key, %d bit long modulus\n",
- num);
- rsa = e ? RSA_new_method(e) : RSA_new();
- if (rsa == NULL)
- goto end;
- if (!BN_set_word(bn, f4) || !RSA_generate_key_ex(rsa, num, bn, cb))
- goto end;
- app_RAND_write_file(NULL);
- hexe = BN_bn2hex(rsa->e);
- dece = BN_bn2dec(rsa->e);
- if (hexe && dece) {
- BIO_printf(bio_err, "e is %s (0x%s)\n", dece, hexe);
- }
- OPENSSL_free(hexe);
- OPENSSL_free(dece);
- cb_data.password = passout;
- cb_data.prompt_info = outfile;
- assert(private);
- if (!PEM_write_bio_RSAPrivateKey(out, rsa, enc, NULL, 0,
- (pem_password_cb *)password_callback,
- &cb_data))
- goto end;
- ret = 0;
- end:
- BN_free(bn);
- BN_GENCB_free(cb);
- RSA_free(rsa);
- BIO_free_all(out);
- OPENSSL_free(passout);
- if (ret != 0)
- ERR_print_errors(bio_err);
- return (ret);
- }
- static int genrsa_cb(int p, int n, BN_GENCB *cb)
- {
- char c = '*';
- if (p == 0)
- c = '.';
- if (p == 1)
- c = '+';
- if (p == 2)
- c = '*';
- if (p == 3)
- c = '\n';
- BIO_write(BN_GENCB_get_arg(cb), &c, 1);
- (void)BIO_flush(BN_GENCB_get_arg(cb));
- return 1;
- }
- #else /* !OPENSSL_NO_RSA */
- # if PEDANTIC
- static void *dummy = &dummy;
- # endif
- #endif
|