/*
This file is part of GNUnet.
Copyright (C) 2002, 2003, 2004, 2006 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @author Christian Grothoff
* @file util/perf_crypto_hash.c
* @brief measure performance of hash function
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include
#include
static void
perfHash()
{
struct GNUNET_HashCode hc;
unsigned int i;
char buf[64 * 1024];
memset(buf, 1, sizeof(buf));
for (i = 0; i < 1024; i++)
GNUNET_CRYPTO_hash(buf, sizeof(buf), &hc);
}
static void
perfHashSmall()
{
struct GNUNET_HashCode hc;
unsigned int i;
char buf[64];
memset(buf, 1, sizeof(buf));
for (i = 0; i < 1024; i++)
GNUNET_CRYPTO_hash(buf, sizeof(buf), &hc);
}
static void
perfHKDF()
{
unsigned int i;
char res[128];
char buf[128];
char skm[64];
memset(buf, 1, sizeof(buf));
memset(skm, 2, sizeof(skm));
for (i = 0; i < 1024; i++)
GNUNET_CRYPTO_hkdf(res, sizeof(res),
GCRY_MD_SHA512, GCRY_MD_SHA256,
buf, sizeof(buf),
skm, sizeof(skm),
"test", (size_t)4,
NULL, 0);
}
int
main(int argc, char *argv[])
{
struct GNUNET_TIME_Absolute start;
start = GNUNET_TIME_absolute_get();
perfHashSmall();
printf("1024x 64-byte Hash perf took %s\n",
GNUNET_STRINGS_relative_time_to_string(GNUNET_TIME_absolute_get_duration(start),
GNUNET_YES));
start = GNUNET_TIME_absolute_get();
perfHash();
printf("1024x 64k Hash perf took %s\n",
GNUNET_STRINGS_relative_time_to_string(GNUNET_TIME_absolute_get_duration(start),
GNUNET_YES));
GAUGER("UTIL", "Cryptographic hashing",
64 * 1024 / (1 +
GNUNET_TIME_absolute_get_duration
(start).rel_value_us / 1000LL), "kb/ms");
start = GNUNET_TIME_absolute_get();
perfHKDF();
printf("HKDF perf took %s\n",
GNUNET_STRINGS_relative_time_to_string(GNUNET_TIME_absolute_get_duration(start),
GNUNET_YES));
GAUGER("UTIL", "Cryptographic HKDF",
64 * 1024 / (1 +
GNUNET_TIME_absolute_get_duration
(start).rel_value_us / 1000LL), "kb/ms");
return 0;
}
/* end of perf_crypto_hash.c */