152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/* ====================================================================
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* Copyright (c) 2004 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <string.h>
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#include "apps.h"
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#include <openssl/bn.h>
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#undef PROG
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#define PROG prime_main
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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int hex = 0;
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int checks = 20;
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int generate = 0;
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int bits = 0;
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int safe = 0;
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BIGNUM *bn = NULL;
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BIO *bio_out;
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err = BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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--argc;
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++argv;
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while (argc >= 1 && **argv == '-') {
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if (!strcmp(*argv, "-hex"))
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hex = 1;
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else if (!strcmp(*argv, "-generate"))
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generate = 1;
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else if (!strcmp(*argv, "-bits"))
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if (--argc < 1)
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goto bad;
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else
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bits = atoi(*++argv);
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else if (!strcmp(*argv, "-safe"))
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safe = 1;
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else if (!strcmp(*argv, "-checks"))
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if (--argc < 1)
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goto bad;
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else
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checks = atoi(*++argv);
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else {
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BIO_printf(bio_err, "Unknown option '%s'\n", *argv);
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goto bad;
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}
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--argc;
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++argv;
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}
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if (argv[0] == NULL && !generate) {
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BIO_printf(bio_err, "No prime specified\n");
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goto bad;
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}
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if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
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BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
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#ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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bio_out = BIO_push(tmpbio, bio_out);
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}
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#endif
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}
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if (generate) {
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char *s;
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if (!bits) {
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BIO_printf(bio_err, "Specifiy the number of bits.\n");
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return 1;
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}
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bn = BN_new();
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BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL);
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s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
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BIO_printf(bio_out, "%s\n", s);
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OPENSSL_free(s);
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} else {
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if (hex)
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BN_hex2bn(&bn, argv[0]);
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else
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BN_dec2bn(&bn, argv[0]);
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BN_print(bio_out, bn);
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BIO_printf(bio_out, " is %sprime\n",
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BN_is_prime_ex(bn, checks, NULL, NULL) ? "" : "not ");
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}
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BN_free(bn);
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BIO_free_all(bio_out);
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return 0;
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bad:
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BIO_printf(bio_err, "options are\n");
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BIO_printf(bio_err, "%-14s hex\n", "-hex");
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BIO_printf(bio_err, "%-14s number of checks\n", "-checks <n>");
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return 1;
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}
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