mirror of
https://github.com/openssl/openssl.git
synced 2024-12-09 05:51:54 +08:00
33388b44b6
Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/11616)
147 lines
3.8 KiB
C
147 lines
3.8 KiB
C
/*
|
|
* Copyright 2004-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "apps.h"
|
|
#include "progs.h"
|
|
#include <openssl/bn.h>
|
|
|
|
typedef enum OPTION_choice {
|
|
OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
|
|
OPT_HEX, OPT_GENERATE, OPT_BITS, OPT_SAFE, OPT_CHECKS,
|
|
OPT_PROV_ENUM
|
|
} OPTION_CHOICE;
|
|
|
|
const OPTIONS prime_options[] = {
|
|
{OPT_HELP_STR, 1, '-', "Usage: %s [options] [number...]\n"},
|
|
|
|
OPT_SECTION("General"),
|
|
{"help", OPT_HELP, '-', "Display this summary"},
|
|
{"bits", OPT_BITS, 'p', "Size of number in bits"},
|
|
{"checks", OPT_CHECKS, 'p', "Number of checks"},
|
|
|
|
OPT_SECTION("Output"),
|
|
{"hex", OPT_HEX, '-', "Hex output"},
|
|
{"generate", OPT_GENERATE, '-', "Generate a prime"},
|
|
{"safe", OPT_SAFE, '-',
|
|
"When used with -generate, generate a safe prime"},
|
|
|
|
OPT_PROV_OPTIONS,
|
|
|
|
OPT_PARAMETERS(),
|
|
{"number", 0, 0, "Number(s) to check for primality if not generating"},
|
|
{NULL}
|
|
};
|
|
|
|
int prime_main(int argc, char **argv)
|
|
{
|
|
BIGNUM *bn = NULL;
|
|
int hex = 0, generate = 0, bits = 0, safe = 0, ret = 1;
|
|
char *prog;
|
|
OPTION_CHOICE o;
|
|
|
|
prog = opt_init(argc, argv, prime_options);
|
|
while ((o = opt_next()) != OPT_EOF) {
|
|
switch (o) {
|
|
case OPT_EOF:
|
|
case OPT_ERR:
|
|
opthelp:
|
|
BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
|
|
goto end;
|
|
case OPT_HELP:
|
|
opt_help(prime_options);
|
|
ret = 0;
|
|
goto end;
|
|
case OPT_HEX:
|
|
hex = 1;
|
|
break;
|
|
case OPT_GENERATE:
|
|
generate = 1;
|
|
break;
|
|
case OPT_BITS:
|
|
bits = atoi(opt_arg());
|
|
break;
|
|
case OPT_SAFE:
|
|
safe = 1;
|
|
break;
|
|
case OPT_CHECKS:
|
|
/* ignore parameter and argument */
|
|
opt_arg();
|
|
break;
|
|
case OPT_PROV_CASES:
|
|
if (!opt_provider(o))
|
|
goto end;
|
|
break;
|
|
}
|
|
}
|
|
argc = opt_num_rest();
|
|
argv = opt_rest();
|
|
|
|
if (generate) {
|
|
if (argc != 0) {
|
|
BIO_printf(bio_err, "Extra arguments given.\n");
|
|
goto opthelp;
|
|
}
|
|
} else if (argc == 0) {
|
|
BIO_printf(bio_err, "%s: No prime specified\n", prog);
|
|
goto opthelp;
|
|
}
|
|
|
|
if (generate) {
|
|
char *s;
|
|
|
|
if (!bits) {
|
|
BIO_printf(bio_err, "Specify the number of bits.\n");
|
|
goto end;
|
|
}
|
|
bn = BN_new();
|
|
if (bn == NULL) {
|
|
BIO_printf(bio_err, "Out of memory.\n");
|
|
goto end;
|
|
}
|
|
if (!BN_generate_prime_ex(bn, bits, safe, NULL, NULL, NULL)) {
|
|
BIO_printf(bio_err, "Failed to generate prime.\n");
|
|
goto end;
|
|
}
|
|
s = hex ? BN_bn2hex(bn) : BN_bn2dec(bn);
|
|
if (s == NULL) {
|
|
BIO_printf(bio_err, "Out of memory.\n");
|
|
goto end;
|
|
}
|
|
BIO_printf(bio_out, "%s\n", s);
|
|
OPENSSL_free(s);
|
|
} else {
|
|
for ( ; *argv; argv++) {
|
|
int r;
|
|
|
|
if (hex)
|
|
r = BN_hex2bn(&bn, argv[0]);
|
|
else
|
|
r = BN_dec2bn(&bn, argv[0]);
|
|
|
|
if (!r) {
|
|
BIO_printf(bio_err, "Failed to process value (%s)\n", argv[0]);
|
|
goto end;
|
|
}
|
|
|
|
BN_print(bio_out, bn);
|
|
BIO_printf(bio_out, " (%s) %s prime\n",
|
|
argv[0],
|
|
BN_check_prime(bn, NULL, NULL)
|
|
? "is" : "is not");
|
|
}
|
|
}
|
|
|
|
ret = 0;
|
|
end:
|
|
BN_free(bn);
|
|
return ret;
|
|
}
|