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/*
* Copyright (C) 2009-2011 Free Software Foundation, Inc.
*
* 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 this program. If not, see
* <http://www.gnu.org/licenses/>.
*
* Written by Nikos Mavrogiannopoulos <nmav@gnutls.org>.
*/
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <gnutls/gnutls.h>
#include <gnutls/crypto.h>
#include <time.h>
#include "timespec.h" /* gnulib gettime */
#include "benchmark.h"
static unsigned char data[64 * 1024];
static void
tls_log_func (int level, const char *str)
{
fprintf (stderr, "|<%d>| %s", level, str);
}
static void
cipher_mac_bench (int algo, int mac_algo, int size)
{
int ret;
gnutls_cipher_hd_t ctx;
gnutls_hmac_hd_t mac_ctx;
void *_key, *_iv;
gnutls_datum_t key, iv;
int blocksize = gnutls_cipher_get_block_size (algo);
int keysize = gnutls_cipher_get_key_size (algo);
int step = size*1024;
struct benchmark_st st;
_key = malloc (keysize);
if (_key == NULL)
return;
memset (_key, 0xf0, keysize);
_iv = malloc (blocksize);
if (_iv == NULL)
return;
memset (_iv, 0xf0, blocksize);
iv.data = _iv;
iv.size = blocksize;
key.data = _key;
key.size = keysize;
printf ("Checking %s with %s (%dkb payload)... ", gnutls_cipher_get_name (algo),
gnutls_mac_get_name(mac_algo), size);
fflush (stdout);
start_benchmark(&st);
ret = gnutls_hmac_init(&mac_ctx, mac_algo, key.data, key.size);
if (ret < 0)
{
fprintf (stderr, "error: %s\n", gnutls_strerror (ret));
goto leave;
}
ret = gnutls_cipher_init (&ctx, algo, &key, &iv);
if (ret < 0)
{
fprintf (stderr, "error: %s\n", gnutls_strerror (ret));
goto leave;
}
gnutls_hmac(mac_ctx, data, 1024);
do
{
gnutls_hmac(mac_ctx, data, step);
gnutls_cipher_encrypt (ctx, data, step);
st.size += step;
}
while (benchmark_must_finish == 0);
gnutls_cipher_deinit (ctx);
gnutls_hmac_deinit(mac_ctx, NULL);
stop_benchmark (&st, NULL);
leave:
free (_key);
free (_iv);
}
static void
cipher_bench (int algo, int size, int aead)
{
int ret;
gnutls_cipher_hd_t ctx;
void *_key, *_iv;
gnutls_datum_t key, iv;
int blocksize = gnutls_cipher_get_block_size (algo);
int keysize = gnutls_cipher_get_key_size (algo);
int step = size*1024;
struct benchmark_st st;
_key = malloc (keysize);
if (_key == NULL)
return;
memset (_key, 0xf0, keysize);
_iv = malloc (blocksize);
if (_iv == NULL)
return;
memset (_iv, 0xf0, blocksize);
iv.data = _iv;
if (aead) iv.size = 12;
else iv.size = blocksize;
key.data = _key;
key.size = keysize;
printf ("Checking %s (%dkb payload)... ", gnutls_cipher_get_name (algo),
size);
fflush (stdout);
start_benchmark(&st);
ret = gnutls_cipher_init (&ctx, algo, &key, &iv);
if (ret < 0)
{
fprintf (stderr, "error: %s\n", gnutls_strerror (ret));
goto leave;
}
if (aead)
gnutls_cipher_add_auth (ctx, data, 1024);
do
{
gnutls_cipher_encrypt (ctx, data, step);
st.size += step;
}
while (benchmark_must_finish == 0);
gnutls_cipher_deinit (ctx);
stop_benchmark(&st, NULL);
leave:
free (_key);
free (_iv);
}
static void
mac_bench (int algo, int size)
{
void *_key;
int blocksize = gnutls_hmac_get_len (algo);
int step = size*1024;
struct benchmark_st st;
_key = malloc (blocksize);
if (_key == NULL)
return;
memset (_key, 0xf0, blocksize);
printf ("Checking %s (%dkb payload)... ", gnutls_mac_get_name (algo), size);
fflush (stdout);
start_benchmark(&st);
do
{
gnutls_hmac_fast (algo, _key, blocksize, data, step, _key);
st.size += step;
}
while (benchmark_must_finish == 0);
stop_benchmark(&st, NULL);
free (_key);
}
void benchmark_cipher (int init, int debug_level)
{
gnutls_global_set_log_function (tls_log_func);
gnutls_global_set_log_level (debug_level);
if (init)
{
gnutls_global_init ();
gnutls_rnd( GNUTLS_RND_NONCE, data, sizeof(data));
}
cipher_mac_bench ( GNUTLS_CIPHER_AES_128_CBC, GNUTLS_MAC_SHA1, 16);
cipher_mac_bench ( GNUTLS_CIPHER_AES_128_CBC, GNUTLS_MAC_SHA256, 16);
cipher_bench ( GNUTLS_CIPHER_AES_128_GCM, 16, 1);
mac_bench (GNUTLS_MAC_SHA1, 16);
mac_bench (GNUTLS_MAC_SHA256, 16);
mac_bench (GNUTLS_MAC_SHA512, 16);
cipher_bench (GNUTLS_CIPHER_3DES_CBC, 16, 0);
cipher_bench (GNUTLS_CIPHER_AES_128_CBC, 16, 0);
cipher_bench (GNUTLS_CIPHER_ARCFOUR, 16, 0);
gnutls_global_deinit();
}
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