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Commit | Line | Data |
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846e33c7 | 1 | /* |
6738bf14 | 2 | * Copyright 2004-2018 The OpenSSL Project Authors. All Rights Reserved. |
b08868c4 | 3 | * |
dffa7520 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
b08868c4 DSH |
8 | */ |
9 | ||
10 | #include <string.h> | |
11 | ||
12 | #include "apps.h" | |
dab2cd68 | 13 | #include "progs.h" |
b08868c4 DSH |
14 | #include <openssl/bn.h> |
15 | ||
7e1b7485 RS |
16 | typedef enum OPTION_choice { |
17 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
6bd4e3f2 P |
18 | OPT_HEX, OPT_GENERATE, OPT_BITS, OPT_SAFE, OPT_CHECKS, |
19 | OPT_PROV_ENUM | |
7e1b7485 RS |
20 | } OPTION_CHOICE; |
21 | ||
44c83ebd | 22 | const OPTIONS prime_options[] = { |
7e1b7485 | 23 | {OPT_HELP_STR, 1, '-', "Usage: %s [options] [number...]\n"}, |
5388f986 RS |
24 | |
25 | OPT_SECTION("General"), | |
7e1b7485 | 26 | {"help", OPT_HELP, '-', "Display this summary"}, |
5388f986 RS |
27 | {"bits", OPT_BITS, 'p', "Size of number in bits"}, |
28 | {"checks", OPT_CHECKS, 'p', "Number of checks"}, | |
29 | ||
30 | OPT_SECTION("Output"), | |
7e1b7485 RS |
31 | {"hex", OPT_HEX, '-', "Hex output"}, |
32 | {"generate", OPT_GENERATE, '-', "Generate a prime"}, | |
7e1b7485 RS |
33 | {"safe", OPT_SAFE, '-', |
34 | "When used with -generate, generate a safe prime"}, | |
92de469f | 35 | |
6bd4e3f2 P |
36 | OPT_PROV_OPTIONS, |
37 | ||
92de469f RS |
38 | OPT_PARAMETERS(), |
39 | {"number", 0, 0, "Number(s) to check for primality if not generating"}, | |
7e1b7485 RS |
40 | {NULL} |
41 | }; | |
42 | ||
43 | int prime_main(int argc, char **argv) | |
0f113f3e | 44 | { |
0f113f3e | 45 | BIGNUM *bn = NULL; |
42619397 | 46 | int hex = 0, generate = 0, bits = 0, safe = 0, ret = 1; |
7e1b7485 RS |
47 | char *prog; |
48 | OPTION_CHOICE o; | |
49 | ||
50 | prog = opt_init(argc, argv, prime_options); | |
51 | while ((o = opt_next()) != OPT_EOF) { | |
52 | switch (o) { | |
53 | case OPT_EOF: | |
54 | case OPT_ERR: | |
c27363f5 | 55 | opthelp: |
7e1b7485 RS |
56 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
57 | goto end; | |
58 | case OPT_HELP: | |
59 | opt_help(prime_options); | |
60 | ret = 0; | |
61 | goto end; | |
62 | case OPT_HEX: | |
0f113f3e | 63 | hex = 1; |
7e1b7485 RS |
64 | break; |
65 | case OPT_GENERATE: | |
0f113f3e | 66 | generate = 1; |
7e1b7485 RS |
67 | break; |
68 | case OPT_BITS: | |
69 | bits = atoi(opt_arg()); | |
70 | break; | |
71 | case OPT_SAFE: | |
0f113f3e | 72 | safe = 1; |
7e1b7485 RS |
73 | break; |
74 | case OPT_CHECKS: | |
42619397 KR |
75 | /* ignore parameter and argument */ |
76 | opt_arg(); | |
7e1b7485 | 77 | break; |
6bd4e3f2 P |
78 | case OPT_PROV_CASES: |
79 | if (!opt_provider(o)) | |
80 | goto end; | |
81 | break; | |
0f113f3e | 82 | } |
0f113f3e | 83 | } |
7e1b7485 RS |
84 | argc = opt_num_rest(); |
85 | argv = opt_rest(); | |
0f113f3e | 86 | |
c27363f5 RS |
87 | if (generate) { |
88 | if (argc != 0) { | |
89 | BIO_printf(bio_err, "Extra arguments given.\n"); | |
90 | goto opthelp; | |
91 | } | |
92 | } else if (argc == 0) { | |
7e1b7485 | 93 | BIO_printf(bio_err, "%s: No prime specified\n", prog); |
c27363f5 | 94 | goto opthelp; |
0f113f3e MC |
95 | } |
96 | ||
97 | if (generate) { | |
98 | char *s; | |
99 | ||
100 | if (!bits) { | |
5573ee36 | 101 | BIO_printf(bio_err, "Specify the number of bits.\n"); |
7e1b7485 | 102 | goto end; |
0f113f3e MC |
103 | } |
104 | bn = BN_new(); | |
9b5164ce DSH |
105 | if (bn == NULL) { |
106 | BIO_printf(bio_err, "Out of memory.\n"); | |
107 | goto end; | |
108 | } | |
e69f2a22 MC |
109 | if (!BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL)) { |
110 | BIO_printf(bio_err, "Failed to generate prime.\n"); | |
111 | goto end; | |
112 | } | |
0f113f3e | 113 | s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn); |
9b5164ce DSH |
114 | if (s == NULL) { |
115 | BIO_printf(bio_err, "Out of memory.\n"); | |
116 | goto end; | |
117 | } | |
0f113f3e MC |
118 | BIO_printf(bio_out, "%s\n", s); |
119 | OPENSSL_free(s); | |
120 | } else { | |
7e1b7485 | 121 | for ( ; *argv; argv++) { |
e69f2a22 MC |
122 | int r; |
123 | ||
7e1b7485 | 124 | if (hex) |
e69f2a22 | 125 | r = BN_hex2bn(&bn, argv[0]); |
7e1b7485 | 126 | else |
e69f2a22 MC |
127 | r = BN_dec2bn(&bn, argv[0]); |
128 | ||
28b86f31 | 129 | if (!r) { |
e69f2a22 MC |
130 | BIO_printf(bio_err, "Failed to process value (%s)\n", argv[0]); |
131 | goto end; | |
132 | } | |
0f113f3e | 133 | |
7e1b7485 RS |
134 | BN_print(bio_out, bn); |
135 | BIO_printf(bio_out, " (%s) %s prime\n", | |
136 | argv[0], | |
42619397 | 137 | BN_check_prime(bn, NULL, NULL) |
7e1b7485 RS |
138 | ? "is" : "is not"); |
139 | } | |
0f113f3e | 140 | } |
b08868c4 | 141 | |
e69f2a22 | 142 | ret = 0; |
7e1b7485 | 143 | end: |
5bf7c772 | 144 | BN_free(bn); |
7e1b7485 | 145 | return ret; |
0f113f3e | 146 | } |