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/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "cryptolib.h"
#include "file_keys.h"
#include "host_common.h"
#include "timer_utils.h"
#define FILE_NAME_SIZE 128
#define NUM_OPERATIONS 100 /* Number of signature operations to time. */
int SpeedTestAlgorithm(int algorithm) {
int i, key_size;
int error_code = 0;
double speed, msecs;
char file_name[FILE_NAME_SIZE];
uint8_t* digest = NULL;
uint8_t* signature = NULL;
uint64_t digest_len, sig_len;
RSAPublicKey* key = NULL;
ClockTimerState ct;
char* sha_strings[] = { /* Maps algorithm->SHA algorithm. */
"sha1", "sha256", "sha512", /* RSA-1024 */
"sha1", "sha256", "sha512", /* RSA-2048 */
"sha1", "sha256", "sha512", /* RSA-4096 */
"sha1", "sha256", "sha512", /* RSA-8192 */
};
key_size = siglen_map[algorithm] * 8; /* in bits. */
/* Get key. */
snprintf(file_name, FILE_NAME_SIZE, "testkeys/key_rsa%d.keyb", key_size);
key = RSAPublicKeyFromFile(file_name);
if (!key) {
VBDEBUG(("Couldn't read RSA Public key from file: %s\n", file_name));
error_code = 1;
goto failure;
}
/* Get expected digest. */
snprintf(file_name, FILE_NAME_SIZE, "testcases/test_file.%s.digest",
sha_strings[algorithm]);
digest = BufferFromFile(file_name, &digest_len);
if (!digest) {
VBDEBUG(("Couldn't read digest file.\n"));
error_code = 1;
goto failure;
}
/* Get signature to verify against. */
snprintf(file_name, FILE_NAME_SIZE, "testcases/test_file.rsa%d_%s.sig",
key_size, sha_strings[algorithm]);
signature = BufferFromFile(file_name, &sig_len);
if (!signature) {
VBDEBUG(("Couldn't read signature file.\n"));
error_code = 1;
goto failure;
}
StartTimer(&ct);
for (i = 0; i < NUM_OPERATIONS; i++) {
if (!RSAVerify(key, signature, sig_len, algorithm, digest))
VBDEBUG(("Warning: Signature Check Failed.\n"));
}
StopTimer(&ct);
msecs = (float) GetDurationMsecs(&ct) / NUM_OPERATIONS;
speed = 1000.0 / msecs ;
fprintf(stderr, "# rsa%d/%s:\tTime taken per verification = %.02f ms,"
" Speed = %.02f verifications/s\n", key_size, sha_strings[algorithm],
msecs, speed);
fprintf(stdout, "ms_rsa%d_%s:%.02f\n", key_size, sha_strings[algorithm],
msecs);
failure:
free(signature);
free(digest);
RSAPublicKeyFree(key);
return error_code;
}
int main(int argc, char* argv[]) {
int i;
int error_code = 0;
for (i = 0; i < kNumAlgorithms; ++i) {
if(SpeedTestAlgorithm(i))
error_code = 1;
}
return error_code;
}