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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 <library.h>
#include <utils/debug.h>
#include <credentials/keys/private_key.h>
void start_timing(struct timespec *start)
{
clock_gettime(CLOCK_THREAD_CPUTIME_ID, start);
}
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 usage()
{
printf("usage: pubkey_speed plugins rsa|ecdsa rounds < key\n");
exit(1);
}
int main(int argc, char *argv[])
{
private_key_t *private;
public_key_t *public;
struct timespec timing;
int round, rounds, read;
char buf[8096], *pos = buf;
key_type_t type = KEY_ANY;
signature_scheme_t scheme = SIGN_UNKNOWN;
chunk_t keydata, *sigs, data;
if (argc < 4)
{
usage();
}
rounds = atoi(argv[3]);
if (streq(argv[2], "rsa"))
{
type = KEY_RSA;
scheme = SIGN_RSA_EMSA_PKCS1_SHA1;
}
else if (streq(argv[2], "ecdsa"))
{
type = KEY_ECDSA;
}
else
{
usage();
}
library_init(NULL, "pubkey_speed");
lib->plugins->load(lib->plugins, argv[1]);
atexit(library_deinit);
keydata = chunk_create(buf, 0);
while ((read = fread(pos, 1, sizeof(buf) - (pos - buf), stdin)))
{
pos += read;
keydata.len += read;
}
private = lib->creds->create(lib->creds, CRED_PRIVATE_KEY, type,
BUILD_BLOB_PEM, keydata, BUILD_END);
if (!private)
{
printf("parsing private key failed.\n");
exit(1);
}
if (type == KEY_ECDSA)
{
switch (private->get_keysize(private))
{
case 256:
scheme = SIGN_ECDSA_256;
break;
case 384:
scheme = SIGN_ECDSA_384;
break;
case 521:
scheme = SIGN_ECDSA_521;
break;
default:
printf("%d bit ECDSA private key size not supported",
private->get_keysize(private));
exit(1);
}
}
printf("%4d bit %N: ", private->get_keysize(private),
key_type_names, type);
sigs = malloc(sizeof(chunk_t) * rounds);
data = chunk_from_chars(0x01,0x02,0x03,0x04,0x05,0x06,0x07);
start_timing(&timing);
for (round = 0; round < rounds; round++)
{
if (!private->sign(private, scheme, NULL, data, &sigs[round]))
{
printf("creating signature failed\n");
exit(1);
}
};
printf("sign()/s: %8.1f ", rounds / end_timing(&timing));
public = private->get_public_key(private);
if (!public)
{
printf("extracting public key failed\n");
exit(1);
}
start_timing(&timing);
for (round = 0; round < rounds; round++)
{
if (!public->verify(public, scheme, NULL, data, sigs[round]))
{
printf("signature verification failed\n");
exit(1);
}
}
printf("verify()/s: %8.1f\n", rounds / end_timing(&timing));
public->destroy(public);
private->destroy(private);
for (round = 0; round < rounds; round++)
{
free(sigs[round].ptr);
}
free(sigs);
return 0;
}
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