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/*
* Copyright (C) 2009 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* This program 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
#include <stdio.h>
#include <time.h>
#include <assert.h>
#include <library.h>
#include <utils/debug.h>
#include <crypto/diffie_hellman.h>
static void usage()
{
printf("usage: dh_speed plugins rounds group1 [group2 [...]]\n");
exit(1);
}
struct {
char *name;
diffie_hellman_group_t group;
} groups[] = {
{"modp768", MODP_768_BIT},
{"modp1024", MODP_1024_BIT},
{"modp1024s160", MODP_1024_160},
{"modp1536", MODP_1536_BIT},
{"modp2048", MODP_2048_BIT},
{"modp2048s224", MODP_2048_224},
{"modp2048s256", MODP_2048_256},
{"modp3072", MODP_3072_BIT},
{"modp4096", MODP_4096_BIT},
{"modp6144", MODP_6144_BIT},
{"modp8192", MODP_8192_BIT},
{"ecp256", ECP_256_BIT},
{"ecp384", ECP_384_BIT},
{"ecp521", ECP_521_BIT},
{"ecp192", ECP_192_BIT},
{"ecp224", ECP_224_BIT},
{"curve25519", CURVE_25519},
};
static void start_timing(struct timespec *start)
{
clock_gettime(CLOCK_THREAD_CPUTIME_ID, start);
}
static double end_timing(struct timespec *start)
{
struct timespec end;
clock_gettime(CLOCK_THREAD_CPUTIME_ID, &end);
return (end.tv_nsec - start->tv_nsec) / 1000000000.0 +
(end.tv_sec - start->tv_sec) * 1.0;
}
static void run_test(diffie_hellman_group_t group, int rounds)
{
diffie_hellman_t *l[rounds], *r;
chunk_t chunk, chunks[rounds], lsecrets[rounds], rsecrets[rounds];
struct timespec timing;
int round;
r = lib->crypto->create_dh(lib->crypto, group);
if (!r)
{
printf("skipping %N, not supported\n",
diffie_hellman_group_names, group);
return;
}
printf("%N:\t", diffie_hellman_group_names, group);
start_timing(&timing);
for (round = 0; round < rounds; round++)
{
l[round] = lib->crypto->create_dh(lib->crypto, group);
assert(l[round]->get_my_public_value(l[round], &chunks[round]));
}
printf("A = g^a/s: %8.1f", rounds / end_timing(&timing));
for (round = 0; round < rounds; round++)
{
assert(r->set_other_public_value(r, chunks[round]));
assert(r->get_shared_secret(r, &rsecrets[round]));
chunk_free(&chunks[round]);
}
assert(r->get_my_public_value(r, &chunk));
start_timing(&timing);
for (round = 0; round < rounds; round++)
{
assert(l[round]->set_other_public_value(l[round], chunk));
assert(l[round]->get_shared_secret(l[round], &lsecrets[round]));
}
printf(" | S = B^a/s: %8.1f\n", rounds / end_timing(&timing));
chunk_free(&chunk);
for (round = 0; round < rounds; round++)
{
assert(chunk_equals(rsecrets[round], lsecrets[round]));
free(lsecrets[round].ptr);
free(rsecrets[round].ptr);
l[round]->destroy(l[round]);
}
r->destroy(r);
}
int main(int argc, char *argv[])
{
int rounds, i, j;
if (argc < 4)
{
usage();
}
library_init(NULL, "dh_speed");
lib->plugins->load(lib->plugins, argv[1]);
atexit(library_deinit);
rounds = atoi(argv[2]);
for (i = 3; i < argc; i++)
{
bool found = FALSE;
for (j = 0; j < countof(groups); j++)
{
if (streq(groups[j].name, argv[i]))
{
run_test(groups[j].group, rounds);
found = TRUE;
}
}
if (!found)
{
printf("group %s not found\n", argv[i]);
}
}
return 0;
}
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