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/*
* Copyright (C) 2016 Nikos Mavrogiannopoulos
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* GnuTLS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuTLS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GnuTLS. If not, see <https://www.gnu.org/licenses/>.
*/
#include <nettle/bignum.h>
#include <gnutls/gnutls.h>
#include <assert.h>
/* Tests whether the included parameters are indeed prime */
static void test_prime(const gnutls_datum_t * prime, const gnutls_datum_t * _q)
{
mpz_t p;
unsigned bits = prime->size * 8;
nettle_mpz_init_set_str_256_u(p, prime->size, prime->data);
assert(mpz_sizeinbase(p, 2) == bits);
assert(mpz_probab_prime_p(p, 18));
if (_q) {
mpz_t q;
nettle_mpz_init_set_str_256_u(q, _q->size, _q->data);
mpz_mul_ui(q, q, 2);
mpz_add_ui(q, q, 1);
assert(mpz_cmp(p, q) == 0);
mpz_clear(q);
}
mpz_clear(p);
}
int main(int argc, char **argv)
{
test_prime(&gnutls_srp_8192_group_prime, NULL);
test_prime(&gnutls_srp_4096_group_prime, NULL);
test_prime(&gnutls_srp_3072_group_prime, NULL);
test_prime(&gnutls_srp_2048_group_prime, NULL);
test_prime(&gnutls_srp_1536_group_prime, NULL);
test_prime(&gnutls_srp_1024_group_prime, NULL);
test_prime(&gnutls_ffdhe_8192_group_prime, &gnutls_ffdhe_8192_group_q);
test_prime(&gnutls_ffdhe_6144_group_prime, &gnutls_ffdhe_6144_group_q);
test_prime(&gnutls_ffdhe_4096_group_prime, &gnutls_ffdhe_4096_group_q);
test_prime(&gnutls_ffdhe_3072_group_prime, &gnutls_ffdhe_3072_group_q);
test_prime(&gnutls_ffdhe_2048_group_prime, &gnutls_ffdhe_2048_group_q);
return 0;
}
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