Annotation of src/usr.bin/openssl/prime.c, Revision 1.1
1.1 ! jsing 1: /* $OpenBSD: prime.c,v 1.12 2014/07/14 00:35:10 deraadt Exp $ */
! 2: /* ====================================================================
! 3: * Copyright (c) 2004 The OpenSSL Project. All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: *
! 9: * 1. Redistributions of source code must retain the above copyright
! 10: * notice, this list of conditions and the following disclaimer.
! 11: *
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in
! 14: * the documentation and/or other materials provided with the
! 15: * distribution.
! 16: *
! 17: * 3. All advertising materials mentioning features or use of this
! 18: * software must display the following acknowledgment:
! 19: * "This product includes software developed by the OpenSSL Project
! 20: * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
! 21: *
! 22: * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
! 23: * endorse or promote products derived from this software without
! 24: * prior written permission. For written permission, please contact
! 25: * openssl-core@openssl.org.
! 26: *
! 27: * 5. Products derived from this software may not be called "OpenSSL"
! 28: * nor may "OpenSSL" appear in their names without prior written
! 29: * permission of the OpenSSL Project.
! 30: *
! 31: * 6. Redistributions of any form whatsoever must retain the following
! 32: * acknowledgment:
! 33: * "This product includes software developed by the OpenSSL Project
! 34: * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
! 35: *
! 36: * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
! 37: * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 38: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 39: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
! 40: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
! 41: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
! 42: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
! 43: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 44: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
! 45: * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 46: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
! 47: * OF THE POSSIBILITY OF SUCH DAMAGE.
! 48: *
! 49: */
! 50:
! 51: #include <string.h>
! 52: #include <limits.h>
! 53:
! 54: #include "apps.h"
! 55:
! 56: #include <openssl/bn.h>
! 57:
! 58: int prime_main(int, char **);
! 59:
! 60: int
! 61: prime_main(int argc, char **argv)
! 62: {
! 63: int hex = 0;
! 64: int checks = 20;
! 65: int generate = 0;
! 66: int bits = 0;
! 67: int safe = 0;
! 68: BIGNUM *bn = NULL;
! 69: const char *errstr = NULL;
! 70: BIO *bio_out;
! 71:
! 72: --argc;
! 73: ++argv;
! 74: while (argc >= 1 && **argv == '-') {
! 75: if (!strcmp(*argv, "-hex"))
! 76: hex = 1;
! 77: else if (!strcmp(*argv, "-generate"))
! 78: generate = 1;
! 79: else if (!strcmp(*argv, "-bits")) {
! 80: if (--argc < 1)
! 81: goto bad;
! 82: else
! 83: bits = strtonum(*(++argv), 0, INT_MAX, &errstr);
! 84: if (errstr)
! 85: goto bad;
! 86: } else if (!strcmp(*argv, "-safe"))
! 87: safe = 1;
! 88: else if (!strcmp(*argv, "-checks")) {
! 89: if (--argc < 1)
! 90: goto bad;
! 91: else
! 92: checks = strtonum(*(++argv), 0, INT_MAX, &errstr);
! 93: if (errstr)
! 94: goto bad;
! 95: } else {
! 96: BIO_printf(bio_err, "Unknown option '%s'\n", *argv);
! 97: goto bad;
! 98: }
! 99: --argc;
! 100: ++argv;
! 101: }
! 102:
! 103: if (argv[0] == NULL && !generate) {
! 104: BIO_printf(bio_err, "No prime specified\n");
! 105: goto bad;
! 106: }
! 107: if ((bio_out = BIO_new(BIO_s_file())) != NULL) {
! 108: BIO_set_fp(bio_out, stdout, BIO_NOCLOSE);
! 109: }
! 110: if (generate) {
! 111: char *s;
! 112:
! 113: if (!bits) {
! 114: BIO_printf(bio_err, "Specifiy the number of bits.\n");
! 115: return 1;
! 116: }
! 117: bn = BN_new();
! 118: BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL);
! 119: s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
! 120: BIO_printf(bio_out, "%s\n", s);
! 121: free(s);
! 122: } else {
! 123: if (hex)
! 124: BN_hex2bn(&bn, argv[0]);
! 125: else
! 126: BN_dec2bn(&bn, argv[0]);
! 127:
! 128: BN_print(bio_out, bn);
! 129: BIO_printf(bio_out, " is %sprime\n",
! 130: BN_is_prime_ex(bn, checks, NULL, NULL) ? "" : "not ");
! 131: }
! 132:
! 133: BN_free(bn);
! 134: BIO_free_all(bio_out);
! 135:
! 136: return 0;
! 137:
! 138: bad:
! 139: if (errstr)
! 140: BIO_printf(bio_err, "invalid argument %s: %s\n", *argv, errstr);
! 141: else {
! 142: BIO_printf(bio_err, "options are\n");
! 143: BIO_printf(bio_err, "%-14s hex\n", "-hex");
! 144: BIO_printf(bio_err, "%-14s number of checks\n", "-checks <n>");
! 145: }
! 146: return 1;
! 147: }
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