programs/test/benchmark.c - security/mbedtls - Rivoreo Source Code Repositories

 /*
  *  Benchmark demonstration program
  *
  *  Copyright (C) 2006-2013, Brainspark B.V.
  *
  *  This file is part of PolarSSL (http://www.polarssl.org)
  *  Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
  *
  *  All rights reserved.
  *
  *  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.
  *
  *  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.
  *
  *  You should have received a copy of the GNU General Public License along
  *  with this program; if not, write to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */

 #ifndef _CRT_SECURE_NO_DEPRECATE
 #define _CRT_SECURE_NO_DEPRECATE 1
 #endif

 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>

 #include "polarssl/config.h"
 #include "polarssl/timing.h"

 #include "polarssl/md4.h"
 #include "polarssl/md5.h"
 #include "polarssl/sha1.h"
 #include "polarssl/sha256.h"
 #include "polarssl/sha512.h"
 #include "polarssl/arc4.h"
 #include "polarssl/des.h"
 #include "polarssl/aes.h"
 #include "polarssl/blowfish.h"
 #include "polarssl/camellia.h"
 #include "polarssl/gcm.h"
 #include "polarssl/ctr_drbg.h"
 #include "polarssl/rsa.h"
 #include "polarssl/dhm.h"
 #include "polarssl/havege.h"

 #define BUFSIZE         1024
 #define HEADER_FORMAT   "  %-16s :  "
 #define TITLE_LEN       17

 #if !defined(POLARSSL_TIMING_C)
 int main( int argc, char *argv[] )
 {
     ((void) argc);
     ((void) argv);

     printf("POLARSSL_TIMING_C not defined.\n");
     return( 0 );
 }
 #else

 static int myrand( void *rng_state, unsigned char *output, size_t len )
 {
     size_t use_len;
     int rnd;

     if( rng_state != NULL )
         rng_state  = NULL;

     while( len > 0 )
     {
         use_len = len;
         if( use_len > sizeof(int) )
             use_len = sizeof(int);

         rnd = rand();
         memcpy( output, &rnd, use_len );
         output += use_len;
         len -= use_len;
     }

     return( 0 );
 }

 #define TIME_AND_TSC( TITLE, CODE )                                     \
 do {                                                                    \
     unsigned long i, j, tsc;                                            \
                                                                         \
     printf( HEADER_FORMAT, TITLE );                                     \
     fflush( stdout );                                                   \
                                                                         \
     set_alarm( 1 );                                                     \
     for( i = 1; ! alarmed; i++ )                                        \
     {                                                                   \
         CODE;                                                           \
     }                                                                   \
                                                                         \
     tsc = hardclock();                                                  \
     for( j = 0; j < 1024; j++ )                                         \
     {                                                                   \
         CODE;                                                           \
     }                                                                   \
                                                                         \
     printf( "%9lu Kb/s,  %9lu cycles/byte\n", i * BUFSIZE / 1024,       \
                     ( hardclock() - tsc ) / ( j * BUFSIZE ) );          \
 } while( 0 )

 #define TIME_PUBLIC( TITLE, TYPE, CODE )                                \
 do {                                                                    \
     unsigned long i;                                                    \
     int ret;                                                            \
                                                                         \
     printf( HEADER_FORMAT, TITLE );                                     \
     fflush( stdout );                                                   \
     set_alarm( 3 );                                                     \
                                                                         \
     ret = 0;                                                            \
     for( i = 1; ! alarmed && ! ret ; i++ )                              \
     {                                                                   \
         CODE;                                                           \
     }                                                                   \
                                                                         \
     if( ret != 0 )                                                      \
         printf( "FAILED\n" );                                           \
     else                                                                \
         printf( "%9lu " TYPE "/s\n", i / 3 );                                  \
 } while( 0 )

 unsigned char buf[BUFSIZE];

 int main( int argc, char *argv[] )
 {
     int keysize;
     unsigned char tmp[64];
     char title[TITLE_LEN];
     ((void) argc);
     ((void) argv);

     memset( buf, 0xAA, sizeof( buf ) );

     printf( "\n" );

 #if defined(POLARSSL_MD4_C)
     TIME_AND_TSC( "MD4", md4( buf, BUFSIZE, tmp ) );
 #endif

 #if defined(POLARSSL_MD5_C)
     TIME_AND_TSC( "MD5", md5( buf, BUFSIZE, tmp ) );
 #endif

 #if defined(POLARSSL_SHA1_C)
     TIME_AND_TSC( "SHA-1", sha1( buf, BUFSIZE, tmp ) );
 #endif

 #if defined(POLARSSL_SHA256_C)
     TIME_AND_TSC( "SHA-256", sha256( buf, BUFSIZE, tmp, 0 ) );
 #endif

 #if defined(POLARSSL_SHA512_C)
     TIME_AND_TSC( "SHA-512", sha512( buf, BUFSIZE, tmp, 0 ) );
 #endif

 #if defined(POLARSSL_ARC4_C)
     {
         arc4_context arc4;
         arc4_setup( &arc4, tmp, 32 );
         TIME_AND_TSC( "ARC4", arc4_crypt( &arc4, BUFSIZE, buf, buf ) );
     }
 #endif

 #if defined(POLARSSL_DES_C) && defined(POLARSSL_CIPHER_MODE_CBC)
     {
         des3_context des3;
         des3_set3key_enc( &des3, tmp );
         TIME_AND_TSC( "3DES",
                 des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
     }

     {
         des_context des;
         des_setkey_enc( &des, tmp );
         TIME_AND_TSC( "DES",
                 des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
     }
 #endif

 #if defined(POLARSSL_AES_C)
 #if defined(POLARSSL_CIPHER_MODE_CBC)
     {
         aes_context aes;
         for( keysize = 128; keysize <= 256; keysize += 64 )
         {
             snprintf( title, sizeof( title ), "AES-CBC-%d", keysize );

             memset( buf, 0, sizeof( buf ) );
             memset( tmp, 0, sizeof( tmp ) );
             aes_setkey_enc( &aes, tmp, keysize );

             TIME_AND_TSC( title,
                     aes_crypt_cbc( &aes, AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
         }
     }
 #endif
 #if defined(POLARSSL_GCM_C)
     {
         gcm_context gcm;
         for( keysize = 128; keysize <= 256; keysize += 64 )
         {
             snprintf( title, sizeof( title ), "AES-GCM-%d", keysize );

             memset( buf, 0, sizeof( buf ) );
             memset( tmp, 0, sizeof( tmp ) );
             gcm_init( &gcm, POLARSSL_CIPHER_ID_AES, tmp, keysize );

             TIME_AND_TSC( title,
                     gcm_crypt_and_tag( &gcm, GCM_ENCRYPT, BUFSIZE, tmp,
                         12, NULL, 0, buf, buf, 16, tmp ) );
         }
     }
 #endif
 #endif

 #if defined(POLARSSL_CAMELLIA_C) && defined(POLARSSL_CIPHER_MODE_CBC)
     {
         camellia_context camellia;
         for( keysize = 128; keysize <= 256; keysize += 64 )
         {
             snprintf( title, sizeof( title ), "CAMELLIA-CBC-%d", keysize );

             memset( buf, 0, sizeof( buf ) );
             memset( tmp, 0, sizeof( tmp ) );
             camellia_setkey_enc( &camellia, tmp, keysize );

             TIME_AND_TSC( title,
                     camellia_crypt_cbc( &camellia, CAMELLIA_ENCRYPT,
                         BUFSIZE, tmp, buf, buf ) );
         }
     }
 #endif

 #if defined(POLARSSL_BLOWFISH_C) && defined(POLARSSL_CIPHER_MODE_CBC)
     {
         blowfish_context blowfish;
         for( keysize = 128; keysize <= 256; keysize += 64 )
         {
             snprintf( title, sizeof( title ), "BLOWFISH-CBC-%d", keysize );

             memset( buf, 0, sizeof( buf ) );
             memset( tmp, 0, sizeof( tmp ) );
             blowfish_setkey( &blowfish, tmp, keysize );

             TIME_AND_TSC( title,
                     blowfish_crypt_cbc( &blowfish, BLOWFISH_ENCRYPT, BUFSIZE,
                         tmp, buf, buf ) );
         }
     }
 #endif

 #if defined(POLARSSL_HAVEGE_C)
     {
         havege_state hs;
         havege_init( &hs );
         TIME_AND_TSC( "HAVEGE", havege_random( &hs, buf, BUFSIZE ) );
     }
 #endif

 #if defined(POLARSSL_CTR_DRBG_C)
     {
         ctr_drbg_context    ctr_drbg;

         if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
             exit(1);
         TIME_AND_TSC( "CTR_DRBG (NOPR)",
                 if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
                 exit(1) );

         if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
             exit(1);
         ctr_drbg_set_prediction_resistance( &ctr_drbg, CTR_DRBG_PR_ON );
         TIME_AND_TSC( "CTR_DRBG (PR)",
                 if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
                 exit(1) );
     }
 #endif

 #if defined(POLARSSL_RSA_C) && defined(POLARSSL_GENPRIME)
     {
         rsa_context rsa;
         for( keysize = 1024; keysize <= 4096; keysize *= 2 )
         {
             snprintf( title, sizeof( title ), "RSA-%d", keysize );

             rsa_init( &rsa, RSA_PKCS_V15, 0 );
             rsa_gen_key( &rsa, myrand, NULL, keysize, 65537 );

             TIME_PUBLIC( title, " public",
                     buf[0] = 0;
                     ret = rsa_public( &rsa, buf, buf ) );

             TIME_PUBLIC( title, "private",
                     buf[0] = 0;
                     ret = rsa_private( &rsa, myrand, NULL, buf, buf ) );

             rsa_free( &rsa );
         }
     }
 #endif

 #if defined(POLARSSL_DHM_C) && defined(POLARSSL_BIGNUM_C)
     {
 #define DHM_SIZES 3
         int sizes[DHM_SIZES] = { 1024, 2048, 3072 };
         const char *dhm_P[DHM_SIZES] = {
             POLARSSL_DHM_RFC5114_MODP_1024_P,
             POLARSSL_DHM_RFC3526_MODP_2048_P,
             POLARSSL_DHM_RFC3526_MODP_3072_P,
         };
         const char *dhm_G[DHM_SIZES] = {
             POLARSSL_DHM_RFC5114_MODP_1024_G,
             POLARSSL_DHM_RFC3526_MODP_2048_G,
             POLARSSL_DHM_RFC3526_MODP_3072_G,
         };

         dhm_context dhm;
         size_t olen;
         for( keysize = 0; keysize < DHM_SIZES; keysize++ )
         {
             memset( &dhm, 0, sizeof( dhm_context ) );

             mpi_read_string( &dhm.P, 16, dhm_P[keysize] );
             mpi_read_string( &dhm.G, 16, dhm_G[keysize] );
             dhm.len = mpi_size( &dhm.P );
             dhm_make_public( &dhm, dhm.len, buf, dhm.len, myrand, NULL );
             mpi_copy( &dhm.GY, &dhm.GX );

             snprintf( title, sizeof( title ), "DHM-%d", sizes[keysize] );
             TIME_PUBLIC( title, "handshake",
                     olen = sizeof( buf );
                     ret |= dhm_make_public( &dhm, dhm.len, buf, dhm.len,
                                             myrand, NULL );
                     ret |= dhm_calc_secret( &dhm, buf, &olen, myrand, NULL ) );

             snprintf( title, sizeof( title ), "DHM-%d-fixed", sizes[keysize] );
             TIME_PUBLIC( title, "handshake",
                     olen = sizeof( buf );
                     ret |= dhm_calc_secret( &dhm, buf, &olen, myrand, NULL ) );

             dhm_free( &dhm );
         }
     }
 #endif

     printf( "\n" );

 #if defined(_WIN32)
     printf( "  Press Enter to exit this program.\n" );
     fflush( stdout ); getchar();
 #endif

     return( 0 );
 }

 #endif /* POLARSSL_TIMING_C */
	/*
	* Benchmark demonstration program
	*
	* Copyright (C) 2006-2013, Brainspark B.V.
	*
	* This file is part of PolarSSL (http://www.polarssl.org)
	* Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
	*
	* All rights reserved.
	*
	* 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.
	*
	* 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.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	*/

	#ifndef _CRT_SECURE_NO_DEPRECATE
	#define _CRT_SECURE_NO_DEPRECATE 1
	#endif

	#include <string.h>
	#include <stdlib.h>
	#include <stdio.h>

	#include "polarssl/config.h"
	#include "polarssl/timing.h"

	#include "polarssl/md4.h"
	#include "polarssl/md5.h"
	#include "polarssl/sha1.h"
	#include "polarssl/sha256.h"
	#include "polarssl/sha512.h"
	#include "polarssl/arc4.h"
	#include "polarssl/des.h"
	#include "polarssl/aes.h"
	#include "polarssl/blowfish.h"
	#include "polarssl/camellia.h"
	#include "polarssl/gcm.h"
	#include "polarssl/ctr_drbg.h"
	#include "polarssl/rsa.h"
	#include "polarssl/dhm.h"
	#include "polarssl/havege.h"

	#define BUFSIZE 1024
	#define HEADER_FORMAT " %-16s : "
	#define TITLE_LEN 17

	#if !defined(POLARSSL_TIMING_C)
	int main( int argc, char *argv[] )
	{
	((void) argc);
	((void) argv);

	printf("POLARSSL_TIMING_C not defined.\n");
	return( 0 );
	}
	#else

	static int myrand( void rng_state, unsigned char output, size_t len )
	{
	size_t use_len;
	int rnd;

	if( rng_state != NULL )
	rng_state = NULL;

	while( len > 0 )
	{
	use_len = len;
	if( use_len > sizeof(int) )
	use_len = sizeof(int);

	rnd = rand();
	memcpy( output, &rnd, use_len );
	output += use_len;
	len -= use_len;
	}

	return( 0 );
	}

	#define TIME_AND_TSC( TITLE, CODE ) \
	do { \
	unsigned long i, j, tsc; \
	\
	printf( HEADER_FORMAT, TITLE ); \
	fflush( stdout ); \
	\
	set_alarm( 1 ); \
	for( i = 1; ! alarmed; i++ ) \
	{ \
	CODE; \
	} \
	\
	tsc = hardclock(); \
	for( j = 0; j < 1024; j++ ) \
	{ \
	CODE; \
	} \
	\
	printf( "%9lu Kb/s, %9lu cycles/byte\n", i * BUFSIZE / 1024, \
	( hardclock() - tsc ) / ( j * BUFSIZE ) ); \
	} while( 0 )

	#define TIME_PUBLIC( TITLE, TYPE, CODE ) \
	do { \
	unsigned long i; \
	int ret; \
	\
	printf( HEADER_FORMAT, TITLE ); \
	fflush( stdout ); \
	set_alarm( 3 ); \
	\
	ret = 0; \
	for( i = 1; ! alarmed && ! ret ; i++ ) \
	{ \
	CODE; \
	} \
	\
	if( ret != 0 ) \
	printf( "FAILED\n" ); \
	else \
	printf( "%9lu " TYPE "/s\n", i / 3 ); \
	} while( 0 )

	unsigned char buf[BUFSIZE];

	int main( int argc, char *argv[] )
	{
	int keysize;
	unsigned char tmp[64];
	char title[TITLE_LEN];
	((void) argc);
	((void) argv);

	memset( buf, 0xAA, sizeof( buf ) );

	printf( "\n" );

	#if defined(POLARSSL_MD4_C)
	TIME_AND_TSC( "MD4", md4( buf, BUFSIZE, tmp ) );
	#endif

	#if defined(POLARSSL_MD5_C)
	TIME_AND_TSC( "MD5", md5( buf, BUFSIZE, tmp ) );
	#endif

	#if defined(POLARSSL_SHA1_C)
	TIME_AND_TSC( "SHA-1", sha1( buf, BUFSIZE, tmp ) );
	#endif

	#if defined(POLARSSL_SHA256_C)
	TIME_AND_TSC( "SHA-256", sha256( buf, BUFSIZE, tmp, 0 ) );
	#endif

	#if defined(POLARSSL_SHA512_C)
	TIME_AND_TSC( "SHA-512", sha512( buf, BUFSIZE, tmp, 0 ) );
	#endif

	#if defined(POLARSSL_ARC4_C)
	{
	arc4_context arc4;
	arc4_setup( &arc4, tmp, 32 );
	TIME_AND_TSC( "ARC4", arc4_crypt( &arc4, BUFSIZE, buf, buf ) );
	}
	#endif

	#if defined(POLARSSL_DES_C) && defined(POLARSSL_CIPHER_MODE_CBC)
	{
	des3_context des3;
	des3_set3key_enc( &des3, tmp );
	TIME_AND_TSC( "3DES",
	des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
	}

	{
	des_context des;
	des_setkey_enc( &des, tmp );
	TIME_AND_TSC( "DES",
	des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
	}
	#endif

	#if defined(POLARSSL_AES_C)
	#if defined(POLARSSL_CIPHER_MODE_CBC)
	{
	aes_context aes;
	for( keysize = 128; keysize <= 256; keysize += 64 )
	{
	snprintf( title, sizeof( title ), "AES-CBC-%d", keysize );

	memset( buf, 0, sizeof( buf ) );
	memset( tmp, 0, sizeof( tmp ) );
	aes_setkey_enc( &aes, tmp, keysize );

	TIME_AND_TSC( title,
	aes_crypt_cbc( &aes, AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
	}
	}
	#endif
	#if defined(POLARSSL_GCM_C)
	{
	gcm_context gcm;
	for( keysize = 128; keysize <= 256; keysize += 64 )
	{
	snprintf( title, sizeof( title ), "AES-GCM-%d", keysize );

	memset( buf, 0, sizeof( buf ) );
	memset( tmp, 0, sizeof( tmp ) );
	gcm_init( &gcm, POLARSSL_CIPHER_ID_AES, tmp, keysize );

	TIME_AND_TSC( title,
	gcm_crypt_and_tag( &gcm, GCM_ENCRYPT, BUFSIZE, tmp,
	12, NULL, 0, buf, buf, 16, tmp ) );
	}
	}
	#endif
	#endif

	#if defined(POLARSSL_CAMELLIA_C) && defined(POLARSSL_CIPHER_MODE_CBC)
	{
	camellia_context camellia;
	for( keysize = 128; keysize <= 256; keysize += 64 )
	{
	snprintf( title, sizeof( title ), "CAMELLIA-CBC-%d", keysize );

	memset( buf, 0, sizeof( buf ) );
	memset( tmp, 0, sizeof( tmp ) );
	camellia_setkey_enc( &camellia, tmp, keysize );

	TIME_AND_TSC( title,
	camellia_crypt_cbc( &camellia, CAMELLIA_ENCRYPT,
	BUFSIZE, tmp, buf, buf ) );
	}
	}
	#endif

	#if defined(POLARSSL_BLOWFISH_C) && defined(POLARSSL_CIPHER_MODE_CBC)
	{
	blowfish_context blowfish;
	for( keysize = 128; keysize <= 256; keysize += 64 )
	{
	snprintf( title, sizeof( title ), "BLOWFISH-CBC-%d", keysize );

	memset( buf, 0, sizeof( buf ) );
	memset( tmp, 0, sizeof( tmp ) );
	blowfish_setkey( &blowfish, tmp, keysize );

	TIME_AND_TSC( title,
	blowfish_crypt_cbc( &blowfish, BLOWFISH_ENCRYPT, BUFSIZE,
	tmp, buf, buf ) );
	}
	}
	#endif

	#if defined(POLARSSL_HAVEGE_C)
	{
	havege_state hs;
	havege_init( &hs );
	TIME_AND_TSC( "HAVEGE", havege_random( &hs, buf, BUFSIZE ) );
	}
	#endif

	#if defined(POLARSSL_CTR_DRBG_C)
	{
	ctr_drbg_context ctr_drbg;

	if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
	exit(1);
	TIME_AND_TSC( "CTR_DRBG (NOPR)",
	if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
	exit(1) );

	if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
	exit(1);
	ctr_drbg_set_prediction_resistance( &ctr_drbg, CTR_DRBG_PR_ON );
	TIME_AND_TSC( "CTR_DRBG (PR)",
	if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
	exit(1) );
	}
	#endif

	#if defined(POLARSSL_RSA_C) && defined(POLARSSL_GENPRIME)
	{
	rsa_context rsa;
	for( keysize = 1024; keysize <= 4096; keysize *= 2 )
	{
	snprintf( title, sizeof( title ), "RSA-%d", keysize );

	rsa_init( &rsa, RSA_PKCS_V15, 0 );
	rsa_gen_key( &rsa, myrand, NULL, keysize, 65537 );

	TIME_PUBLIC( title, " public",
	buf[0] = 0;
	ret = rsa_public( &rsa, buf, buf ) );

	TIME_PUBLIC( title, "private",
	buf[0] = 0;
	ret = rsa_private( &rsa, myrand, NULL, buf, buf ) );

	rsa_free( &rsa );
	}
	}
	#endif

	#if defined(POLARSSL_DHM_C) && defined(POLARSSL_BIGNUM_C)
	{
	#define DHM_SIZES 3
	int sizes[DHM_SIZES] = { 1024, 2048, 3072 };
	const char *dhm_P[DHM_SIZES] = {
	POLARSSL_DHM_RFC5114_MODP_1024_P,
	POLARSSL_DHM_RFC3526_MODP_2048_P,
	POLARSSL_DHM_RFC3526_MODP_3072_P,
	};
	const char *dhm_G[DHM_SIZES] = {
	POLARSSL_DHM_RFC5114_MODP_1024_G,
	POLARSSL_DHM_RFC3526_MODP_2048_G,
	POLARSSL_DHM_RFC3526_MODP_3072_G,
	};

	dhm_context dhm;
	size_t olen;
	for( keysize = 0; keysize < DHM_SIZES; keysize++ )
	{
	memset( &dhm, 0, sizeof( dhm_context ) );

	mpi_read_string( &dhm.P, 16, dhm_P[keysize] );
	mpi_read_string( &dhm.G, 16, dhm_G[keysize] );
	dhm.len = mpi_size( &dhm.P );
	dhm_make_public( &dhm, dhm.len, buf, dhm.len, myrand, NULL );
	mpi_copy( &dhm.GY, &dhm.GX );

	snprintf( title, sizeof( title ), "DHM-%d", sizes[keysize] );
	TIME_PUBLIC( title, "handshake",
	olen = sizeof( buf );
	ret \|= dhm_make_public( &dhm, dhm.len, buf, dhm.len,
	myrand, NULL );
	ret \|= dhm_calc_secret( &dhm, buf, &olen, myrand, NULL ) );

	snprintf( title, sizeof( title ), "DHM-%d-fixed", sizes[keysize] );
	TIME_PUBLIC( title, "handshake",
	olen = sizeof( buf );
	ret \|= dhm_calc_secret( &dhm, buf, &olen, myrand, NULL ) );

	dhm_free( &dhm );
	}
	}
	#endif

	printf( "\n" );

	#if defined(_WIN32)
	printf( " Press Enter to exit this program.\n" );
	fflush( stdout ); getchar();
	#endif

	return( 0 );
	}

	#endif /* POLARSSL_TIMING_C */