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