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/*
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 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.
*/
/**
* @author Christian Grothoff
* @file util/perf_crypto_hash.c
* @brief measure performance of hash function
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include <gauger.h>
#include <gcrypt.h>
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 */
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