src/benchmark-tls.c

   1 /*
   2  * Copyright (C) 2011-2012 Free Software Foundation, Inc.
   3  *
   4  * Author: Nikos Mavrogiannopoulos
   5  *
   6  * This file is part of GnuTLS.
   7  *
   8  * GnuTLS is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * GnuTLS is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with GnuTLS; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include <config.h>
  25 #endif
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <errno.h>
  31 #include <gnutls/gnutls.h>
  32 #include <gnutls/crypto.h>
  33 #include <math.h>
  34
  35 #define fail(...) \
  36         { \
  37                 fprintf(stderr, __VA_ARGS__); \
  38                 exit(1); \
  39         }
  40
  41 #include "../tests/eagain-common.h"
  42 #include "benchmark.h"
  43
  44 const char *side = "";
  45
  46 #define PRIO_DH "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+DHE-RSA"
  47 #define PRIO_ECDH "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+ECDHE-RSA:+CURVE-SECP256R1"
  48 #define PRIO_ECDHE_ECDSA "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+ECDHE-ECDSA:+CURVE-SECP256R1"
  49 #define PRIO_RSA "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA"
  50
  51 #define PRIO_ARCFOUR_128_SHA1 "NONE:+VERS-TLS1.0:+ARCFOUR-128:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA"
  52
  53 #define PRIO_AES_CBC_SHA1 "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA"
  54 #define PRIO_ARCFOUR_128_MD5 "NONE:+VERS-TLS1.0:+ARCFOUR-128:+MD5:+SIGN-ALL:+COMP-NULL:+RSA"
  55 #define PRIO_AES_GCM "NONE:+VERS-TLS1.2:+AES-128-GCM:+AEAD:+SIGN-ALL:+COMP-NULL:+RSA"
  56 #define PRIO_CAMELLIA_CBC_SHA1 "NONE:+VERS-TLS1.0:+CAMELLIA-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA"
  57
  58 static const int rsa_bits = 3072, ec_bits = 256;
  59
  60 /* DH of 3072 bits that is pretty close equivalent to 256 bits of ECDH.
  61  */
  62 const char *pkcs3 =
  63     "-----BEGIN DH PARAMETERS-----\n"
  64     "MIIDDQKCAYEAtnlQsMzw6EdzVgv59IvDCNXDz+V5F6S95ies6VuP2najcePLCPa4\n"
  65     "yLCcQabhjV+rSpYxvqEo1hHMhAZPPsrHP3CCzFlqkSY2mmryC5LfWnoJnJCA5RSs\n"
  66     "kWNlxyJ/fkXWseFKDm+E3W/yZXxBJxf3BevlcF7hMXuOrv5tGOdiltWsCrZglEMC\n"
  67     "IO3NcvEwLp7Y/OuHk4J2upJSLJqL2mUoYgOUAwhoM9oh6ucjPJ0Ha/HqNRe0zdup\n"
  68     "0wnwSbjBR0xa2HdHv5hr0OPk6sma0Zj1cVNi3u5xlMeiirbtEBuRPfM4mrMkhK8F\n"
  69     "YBhVV7YRf+WMw8v9VhfeX+GYuE4oMdv6tJBwWoj0RdhgpD6BMG7uHwM7WOn5ZukA\n"
  70     "sn9eGsXRog2gCmckUfOGn5oQWXRk1sv2myeu75GAaIPIsXMWBsJNCfxVBbi7pEU9\n"
  71     "IQgi6JoLlRnvXVa2GaoVEdAuH0dl6QSIRmNeZ3VKa0ZCx1DHn/WVIt2ooMec5lCY\n"
  72     "JGCqIT3tQUUzAoIBgFYzCrFBoleurEimohHxnFKMY0E0feGA0qLPDUa+Ys/4wsr6\n"
  73     "SabuE9X69EHVDu4xGlbS4w9k5sMfXTqgVGIN43jbWuoN1FAdPp8YdbXACB3k+IoN\n"
  74     "cCj/Ju90Tc/NOTwHN/4Axsy0LpeP+eknb48eQw6mYsHCvN9ytmLqC8AG11G+aTrF\n"
  75     "boVeI7pCbfuls/cRNl4POuSyv+R12Evs1qXLoSW4crPEDvVpbIrgirjQNJbosfZY\n"
  76     "5Pxf2Ofpidy1slINQqx8zhILTikl0AdfYAlnBVFEOKg1HF+EnvNbcXW0QDxxnFF/\n"
  77     "W+Yv0xQpFw9UDa+hdwEVvdrDopqvuvg9BCwCfxT3vGN300RDqWAVGJUknXN4T5MZ\n"
  78     "+fZrtZMhbWDCsOHMcVcUPqul7V5uQX7EAhUnfBKxE1I5NK9J8wtHeUEYioI8f7XY\n"
  79     "Be6/w7WHHspV4fwIOfWUD5G0c++NxED+JwDyc8aU/qVOXVikOXwVTB/2oyatkoBX\n"
  80     "r8Y+1FUiZGhRCT9dbgICAQA=\n"
  81     "-----END DH PARAMETERS-----\n";
  82
  83 static unsigned char server_cert_pem[] =
  84     "-----BEGIN CERTIFICATE-----\n"
  85     "MIIEOjCCAqKgAwIBAgIMU+I+KjQZpH+ZdjOlMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"
  86     "BgNVBAMTBENBLTAwIhgPMjAxNDA4MDYxNDM5MzhaGA85OTk5MTIzMTIzNTk1OVow\n"
  87     "EzERMA8GA1UEAxMIc2VydmVyLTEwggGiMA0GCSqGSIb3DQEBAQUAA4IBjwAwggGK\n"
  88     "AoIBgQDswF+JIWGcyu+JfjTcM8UDRKaxOuLVY0SODV1uaXPB5ZW9nEX/FFYIG+ld\n"
  89     "SKCyz5JF5ThrdvwqO+GVByuvETJdM7N4i8fzGHU8WIsj/CABAV+SaDT/xb+h1ar9\n"
  90     "dIehKelBmXQADVFX+xvu9OM5Ft3P/wyO9gWWrR7e/MU/SVzWzMT69+5YoE4QkrYY\n"
  91     "CuEBtlVHDo2mmNWGSQ5tUVIWARgXbqsmj4voWkutE/CiT0+g6GQilMARkROElIhO\n"
  92     "5NH+u3/Lt2wRQO5tEP1JmSoqvrMOmF16txze8qMzvKg1Eafijv9DR4NcCc6s8+g+\n"
  93     "CZbyODSdAybiyKsC7JCIrQjsnAjgPKKBLuZ1NTmu5liuXO05XsdcBoKDbKNAQdJC\n"
  94     "z4uxfqTr4CGFgHQk48Nhmq01EGmpwAeA/BOCB5qsWzqURtMX8EVB1Zdo3LD5Vwz1\n"
  95     "8mm+ZdeLPlYy3L/FBpVPDbYoZlFgINUNCQvGgvzqGJAQrKR4w8X/Y6HH9R8sv+U8\n"
  96     "kNtQI90CAwEAAaOBjTCBijAMBgNVHRMBAf8EAjAAMBQGA1UdEQQNMAuCCWxvY2Fs\n"
  97     "aG9zdDATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8BAf8EBQMDB6AAMB0GA1Ud\n"
  98     "DgQWBBTVObJSuRlmfjIx/hqxXk4qrxtnWDAfBgNVHSMEGDAWgBQ5vvRl/1WhIqpf\n"
  99     "ZFiHs89kf3N3OTANBgkqhkiG9w0BAQsFAAOCAYEAC0KQNPASZ7adSMMM3qx0Ny8Z\n"
 100     "AkcVAtohkjlwCwhoutcavZVyTjdpGydte6nfyTWOjs6ATBV2GhpyH+nvRJaYQFAh\n"
 101     "7uksjJxptSlaQuJqUI12urzx6BX0kenwh7nNwnLOngSBRqYwQqQdbnZf0w1DAdac\n"
 102     "vSa/Y1PrDpcXyPHpk7pDrtI9Mj24rIbvjeWM1RfgkNQYLPkZBDQqKkc5UrCA5y3v\n"
 103     "3motWyTdfvVYL7KWcEmGeKsWaTDkahd8Xhx29WvE4P740AOvXm/nkrE+PkHODbXi\n"
 104     "iD0a4cO2FPjjVt5ji+iaJTaXBEd9GHklKE6ZTZhj5az9ygQj1m6HZ2i3shWtG2ks\n"
 105     "AjgnGzsA8Wm/5X6YyR8UND41rS/lAc9yx8Az9Hqzfg8aOyvixYVPNKoTEPAMmypA\n"
 106     "oQT6g4b989lZFcjrwnLCrwz83jPD683p5IenCnRI5yhuFoQauy2tgHIbC1FRgs0C\n"
 107     "dyiOeDh80u1fekMVjRztIAwavuwxI6XgRzPSHhWR\n"
 108     "-----END CERTIFICATE-----\n";
 109
 110 static unsigned char server_key_pem[] =
 111     "-----BEGIN RSA PRIVATE KEY-----\n"
 112     "MIIG5gIBAAKCAYEA7MBfiSFhnMrviX403DPFA0SmsTri1WNEjg1dbmlzweWVvZxF\n"
 113     "/xRWCBvpXUigss+SReU4a3b8KjvhlQcrrxEyXTOzeIvH8xh1PFiLI/wgAQFfkmg0\n"
 114     "/8W/odWq/XSHoSnpQZl0AA1RV/sb7vTjORbdz/8MjvYFlq0e3vzFP0lc1szE+vfu\n"
 115     "WKBOEJK2GArhAbZVRw6NppjVhkkObVFSFgEYF26rJo+L6FpLrRPwok9PoOhkIpTA\n"
 116     "EZEThJSITuTR/rt/y7dsEUDubRD9SZkqKr6zDphdercc3vKjM7yoNRGn4o7/Q0eD\n"
 117     "XAnOrPPoPgmW8jg0nQMm4sirAuyQiK0I7JwI4DyigS7mdTU5ruZYrlztOV7HXAaC\n"
 118     "g2yjQEHSQs+LsX6k6+AhhYB0JOPDYZqtNRBpqcAHgPwTggearFs6lEbTF/BFQdWX\n"
 119     "aNyw+VcM9fJpvmXXiz5WMty/xQaVTw22KGZRYCDVDQkLxoL86hiQEKykeMPF/2Oh\n"
 120     "x/UfLL/lPJDbUCPdAgMBAAECggGBAOZzh0sjbDHENBBhAjFKTz6UJ7IigMR3oTao\n"
 121     "+cZM7XnS8cQkhtn5wJiaGrlLxejoNhjFO/sXUfQGX9nBphr+IUkp10vCvHn717pK\n"
 122     "8f2wILL51D7eIqDJq3RrWMroEFGnSz8okQqv6/s5GgKq6zcZ9AXP3TiXb+8wSvmB\n"
 123     "kLq+vZj0r9UfWyl3uSVWuduDU2xoQHAvUWDWKhpRqLJuUvnKTNoaRoz9c5FTu5AY\n"
 124     "9cX4b6lQLJCgvKkcz6PhNSGeiG5tsONi89sNuF3MYO+a4JBpD3l/lj1inHDEhlpd\n"
 125     "xHdbXNv4vw2rJECt5O8Ff3aT3g3voenP0xbfrQ5m6dIrEscU1KMkYIg+wCVV+oNj\n"
 126     "4OhmBvdN/mXKEFpxKNk6C78feA1+ZygNWeBhgY0hiA98oI77H9kN8iuKaOaxYbEG\n"
 127     "qCwHrPbL+fVcLKouN6i3E3kpDIp5HMx4bYWyzotXXrpAWj7D/5saBCdErH0ab4Sb\n"
 128     "2I3tZ49qDIfcKl0bdpTiidbGKasL/QKBwQD+Qlo4m2aZLYSfBxygqiLv42vpeZAB\n"
 129     "4//MeAFnxFcdF+JL6Lo3gfzP3bJ8EEq2b+psmk5yofiNDVaHTb4iOS3DX/JCmnmj\n"
 130     "+zAEfMCVLljYJlACVnyPb+8h+T0UEsQWMiFWZxsv+AbHs/cnpVtdnvO0Hg8VRrHu\n"
 131     "dpKOauuhPkpFxtbbkxJWIapvYr/jqD8m+fDSMWJuxMGKmgKiefy+pS2N7hrbNZF4\n"
 132     "OD/TdCim5qDVuSwj/g2Y7WOTf3UJ5Jo4CmMCgcEA7l9VnhEb3UrAHhGe7bAgZ4Wm\n"
 133     "1ncFVOWc9X/tju3QUpNEow6I0skav2i3A/ZA36Iy/w4Sf8RAQC+77NzBEIKyLjK1\n"
 134     "PfwXPoH2hrtD3WSQlAFG4u8DsRWt4GZY3OAzmqWenhQcUoJ1zgTyRwOFfX1R38NF\n"
 135     "8QeHck5KUUNoi56Vc7BCo/ypacz33RqzVEj6z5ScogTqC8nNn1a+/rfpTKzotJqc\n"
 136     "PJHMXTduAB6x4QHerpzGJQYucAJSD1VJbFwEWUy/AoHBAIvKb1AwIHiXThMhFdw/\n"
 137     "rnW1097JtyNS95CzahJjIIIeX4zcp4VdMmIWwcr0Kh+j6H9NV1QvOThT3P8G/0JR\n"
 138     "rZd9aPS1eaturzfIXxmmIbK1XcfrRRCXuiIzpiEjMCwD49BdX9U/yHqDt59Uiqcu\n"
 139     "fU7KOAC6nZk+F9W1c1dzp+I1MGwIsEwqtkoHQPkpx47mXEE0ZaoBA2fwxQIPj6ZB\n"
 140     "qooeHyXmjdRLGMxpUPByXHslE9+2DkPGQLkXmoGV7jRhgQKBwQDL+LnbgwpT5pXU\n"
 141     "ZQGYpABmdQAZPklKpxwTGr+dcTO0pR2zZUmBDOKdbS5F7p7+fd2jUFhWCglsoyvs\n"
 142     "d82goiVz0KI0AxWkwDLCgVWGCXqJmzocD6gaDNH3VbyubA7cQuIipFTD6ayCeMsU\n"
 143     "JxhAFE9N6NtdbzLghcukE8lOx4ldMDMl/Zq91M033pQbCEPOAn2xSgE3yxvvP5w5\n"
 144     "fAffO4n4mOAeGChGj5rJ8XoGbsIsqiwHHG36HJI5WqJ0XZy/CSMCgcEA4M05digH\n"
 145     "VZE5T/eKLFNEnUB1W9tWAzj+BAqmR1rlwQt5O3fC8F7XqkSowhcRTDHUdoOkdVz/\n"
 146     "jMgRqGs0O+cl8tLImD6d1mFR6Yxu0PHwXUwQVklW8txGGOKv0+2MFMlkFjuwCbNN\n"
 147     "XZ2rmZq/JywCJmVAH0wToXZyEqhilLZ9TLs6m2d2+2hlxJM6XmXjc7A/fC089bSX\n"
 148     "W+lG+lHYAA3tjkBWvb7YAPriahcFrRBvQb5zx4L4NXMHlXMUnA/KlMW2\n"
 149     "-----END RSA PRIVATE KEY-----\n";
 150
 151 static unsigned char server_ecc_key_pem[] =
 152     "-----BEGIN EC PRIVATE KEY-----\n"
 153     "MHgCAQEEIQDrAKCAbdMKPngHu4zdSQ2Pghob8PhyrbUpWAR8V07E+qAKBggqhkjO\n"
 154     "PQMBB6FEA0IABDfo4YLPkO4pBpQamtObIV3J6l92vI+RkyNtaQ9gtSWDj20w/aBC\n"
 155     "WlbcTsRZ2itEpJ6GdLsGOW4RRfmiubzC9JU=\n"
 156     "-----END EC PRIVATE KEY-----\n";
 157
 158 static unsigned char server_ecc_cert_pem[] =
 159     "-----BEGIN CERTIFICATE-----\n"
 160     "MIIBrjCCAVSgAwIBAgIMU+I+axGZmBD/YL96MAoGCCqGSM49BAMCMA8xDTALBgNV\n"
 161     "BAMTBENBLTAwIhgPMjAxNDA4MDYxNDQwNDNaGA85OTk5MTIzMTIzNTk1OVowEzER\n"
 162     "MA8GA1UEAxMIc2VydmVyLTEwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ36OGC\n"
 163     "z5DuKQaUGprTmyFdyepfdryPkZMjbWkPYLUlg49tMP2gQlpW3E7EWdorRKSehnS7\n"
 164     "BjluEUX5orm8wvSVo4GNMIGKMAwGA1UdEwEB/wQCMAAwFAYDVR0RBA0wC4IJbG9j\n"
 165     "YWxob3N0MBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdDwEB/wQFAwMHgAAwHQYD\n"
 166     "VR0OBBYEFOuSntH2To0gJLH79Ow4wNpBuhmEMB8GA1UdIwQYMBaAFMZ1miRvZAYr\n"
 167     "nBEymOtPjbfTrnblMAoGCCqGSM49BAMCA0gAMEUCIQCMP3aBcCxSPbCUhihOsUmH\n"
 168     "G04AgT1PKw8z4LgZ4VGTVAIgYw3IFwS5sSYEAHRZAH8eaTXTz7XFmWmnkve9EBkN\n"
 169     "cBE=\n"
 170     "-----END CERTIFICATE-----\n";
 171
 172 const gnutls_datum_t server_cert = { server_cert_pem,
 173         sizeof(server_cert_pem)
 174 };
 175
 176 const gnutls_datum_t server_key = { server_key_pem,
 177         sizeof(server_key_pem)
 178 };
 179
 180 const gnutls_datum_t server_ecc_cert = { server_ecc_cert_pem,
 181         sizeof(server_ecc_cert_pem)
 182 };
 183
 184 const gnutls_datum_t server_ecc_key = { server_ecc_key_pem,
 185         sizeof(server_ecc_key_pem)
 186 };
 187
 188 char buffer[64 * 1024];
 189
 190 static void tls_log_func(int level, const char *str)
 191 {
 192         fprintf(stderr, "%s|<%d>| %s", side, level, str);
 193 }
 194
 195 static void test_ciphersuite(const char *cipher_prio, int size)
 196 {
 197         /* Server stuff. */
 198         gnutls_anon_server_credentials_t s_anoncred;
 199         gnutls_certificate_credentials_t c_certcred, s_certcred;
 200         const gnutls_datum_t p3 = { (void *) pkcs3, strlen(pkcs3) };
 201         static gnutls_dh_params_t dh_params;
 202         gnutls_session_t server;
 203         int sret, cret;
 204         const char *str;
 205         /* Client stuff. */
 206         gnutls_anon_client_credentials_t c_anoncred;
 207         gnutls_session_t client;
 208         /* Need to enable anonymous KX specifically. */
 209         int ret;
 210         struct benchmark_st st;
 211         gnutls_packet_t packet;
 212
 213         /* Init server */
 214         gnutls_anon_allocate_server_credentials(&s_anoncred);
 215         gnutls_dh_params_init(&dh_params);
 216         gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM);
 217         gnutls_anon_set_server_dh_params(s_anoncred, dh_params);
 218
 219         gnutls_certificate_allocate_credentials(&s_certcred);
 220         gnutls_certificate_set_dh_params(s_certcred, dh_params);
 221
 222         gnutls_certificate_set_x509_key_mem(s_certcred, &server_cert,
 223                                             &server_key,
 224                                             GNUTLS_X509_FMT_PEM);
 225         gnutls_certificate_set_x509_key_mem(s_certcred, &server_ecc_cert,
 226                                             &server_ecc_key,
 227                                             GNUTLS_X509_FMT_PEM);
 228
 229         gnutls_init(&server, GNUTLS_SERVER);
 230         ret = gnutls_priority_set_direct(server, cipher_prio, &str);
 231         if (ret < 0) {
 232                 fprintf(stderr, "Error in %s\n", str);
 233                 exit(1);
 234         }
 235         gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred);
 236         gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, s_certcred);
 237         gnutls_transport_set_push_function(server, server_push);
 238         gnutls_transport_set_pull_function(server, server_pull);
 239         gnutls_transport_set_ptr(server, (gnutls_transport_ptr_t) server);
 240         reset_buffers();
 241
 242         /* Init client */
 243         gnutls_anon_allocate_client_credentials(&c_anoncred);
 244         gnutls_certificate_allocate_credentials(&c_certcred);
 245         gnutls_init(&client, GNUTLS_CLIENT);
 246
 247         ret = gnutls_priority_set_direct(client, cipher_prio, &str);
 248         if (ret < 0) {
 249                 fprintf(stderr, "Error in %s\n", str);
 250                 exit(1);
 251         }
 252         gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred);
 253         gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, c_certcred);
 254         gnutls_transport_set_push_function(client, client_push);
 255         gnutls_transport_set_pull_function(client, client_pull);
 256         gnutls_transport_set_ptr(client, (gnutls_transport_ptr_t) client);
 257
 258         HANDSHAKE(client, server);
 259
 260         fprintf(stdout, "%38s  ",
 261                 gnutls_cipher_suite_get_name(gnutls_kx_get(server),
 262                                              gnutls_cipher_get(server),
 263                                              gnutls_mac_get(server)));
 264         fflush(stdout);
 265
 266         gnutls_rnd(GNUTLS_RND_NONCE, buffer, sizeof(buffer));
 267
 268         start_benchmark(&st);
 269
 270         do {
 271                 do {
 272                         ret = gnutls_record_send(client, buffer, size);
 273                 }
 274                 while (ret == GNUTLS_E_AGAIN);
 275
 276                 if (ret < 0) {
 277                         fprintf(stderr, "Failed sending to server\n");
 278                         exit(1);
 279                 }
 280
 281                 do {
 282                         ret =
 283                             gnutls_record_recv_packet(server, &packet);
 284                 }
 285                 while (ret == GNUTLS_E_AGAIN);
 286
 287                 if (ret < 0) {
 288                         fprintf(stderr, "Failed receiving from client: %s\n", gnutls_strerror(ret));
 289                         exit(1);
 290                 }
 291
 292                 st.size += size;
 293                 gnutls_packet_deinit(packet);
 294         }
 295         while (benchmark_must_finish == 0);
 296
 297         stop_benchmark(&st, NULL, 1);
 298
 299         gnutls_bye(client, GNUTLS_SHUT_WR);
 300         gnutls_bye(server, GNUTLS_SHUT_WR);
 301
 302         gnutls_deinit(client);
 303         gnutls_deinit(server);
 304
 305         gnutls_anon_free_client_credentials(c_anoncred);
 306         gnutls_anon_free_server_credentials(s_anoncred);
 307
 308         gnutls_dh_params_deinit(dh_params);
 309
 310 }
 311
 312 static
 313 double calc_avg(unsigned int *diffs, unsigned int diffs_size)
 314 {
 315         double avg = 0;
 316         unsigned int i;
 317
 318         for (i = 0; i < diffs_size; i++)
 319                 avg += diffs[i];
 320
 321         avg /= diffs_size;
 322
 323         return avg;
 324 }
 325
 326 static
 327 double calc_sstdev(unsigned int *diffs, unsigned int diffs_size,
 328                    double avg)
 329 {
 330         double sum = 0, d;
 331         unsigned int i;
 332
 333         for (i = 0; i < diffs_size; i++) {
 334                 d = ((double) diffs[i] - avg);
 335                 d *= d;
 336
 337                 sum += d;
 338         }
 339         sum /= diffs_size - 1;
 340
 341         return sum;
 342 }
 343
 344
 345 unsigned int diffs[32 * 1024];
 346 unsigned int diffs_size = 0;
 347
 348 static void test_ciphersuite_kx(const char *cipher_prio)
 349 {
 350         /* Server stuff. */
 351         gnutls_anon_server_credentials_t s_anoncred;
 352         const gnutls_datum_t p3 = { (void *) pkcs3, strlen(pkcs3) };
 353         static gnutls_dh_params_t dh_params;
 354         gnutls_session_t server;
 355         int sret, cret;
 356         const char *str;
 357         const char *suite = NULL;
 358         /* Client stuff. */
 359         gnutls_anon_client_credentials_t c_anoncred;
 360         gnutls_certificate_credentials_t c_certcred, s_certcred;
 361         gnutls_session_t client;
 362         /* Need to enable anonymous KX specifically. */
 363         int ret;
 364         struct benchmark_st st;
 365         struct timespec tr_start, tr_stop;
 366         double avg, sstddev;
 367
 368         diffs_size = 0;
 369
 370         /* Init server */
 371         gnutls_certificate_allocate_credentials(&s_certcred);
 372         gnutls_anon_allocate_server_credentials(&s_anoncred);
 373         gnutls_dh_params_init(&dh_params);
 374
 375         ret =
 376              gnutls_dh_params_import_pkcs3(dh_params, &p3,
 377                                            GNUTLS_X509_FMT_PEM);
 378         if (ret < 0) {
 379                 fprintf(stderr, "Error importing the PKCS #3 params: %s\n",
 380                         gnutls_strerror(ret));
 381                 exit(1);
 382         }
 383
 384         gnutls_anon_set_server_dh_params(s_anoncred, dh_params);
 385         gnutls_certificate_set_dh_params(s_certcred, dh_params);
 386
 387         ret = gnutls_certificate_set_x509_key_mem(s_certcred, &server_cert,
 388                                             &server_key,
 389                                             GNUTLS_X509_FMT_PEM);
 390         if (ret < 0) {
 391                 fprintf(stderr, "Error in %d: %s\n", __LINE__,
 392                         gnutls_strerror(ret));
 393                 exit(1);
 394         }
 395
 396         ret = gnutls_certificate_set_x509_key_mem(s_certcred, &server_ecc_cert,
 397                                             &server_ecc_key,
 398                                             GNUTLS_X509_FMT_PEM);
 399         if (ret < 0) {
 400                 fprintf(stderr, "Error in %d: %s\n", __LINE__,
 401                         gnutls_strerror(ret));
 402                 exit(1);
 403         }
 404
 405         /* Init client */
 406         gnutls_anon_allocate_client_credentials(&c_anoncred);
 407         gnutls_certificate_allocate_credentials(&c_certcred);
 408
 409         start_benchmark(&st);
 410
 411         do {
 412
 413                 gnutls_init(&server, GNUTLS_SERVER);
 414                 ret =
 415                     gnutls_priority_set_direct(server, cipher_prio, &str);
 416                 if (ret < 0) {
 417                         fprintf(stderr, "Error in %s\n", str);
 418                         exit(1);
 419                 }
 420                 gnutls_credentials_set(server, GNUTLS_CRD_ANON,
 421                                        s_anoncred);
 422                 gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
 423                                        s_certcred);
 424                 gnutls_transport_set_push_function(server, server_push);
 425                 gnutls_transport_set_pull_function(server, server_pull);
 426                 gnutls_transport_set_ptr(server,
 427                                          (gnutls_transport_ptr_t) server);
 428                 reset_buffers();
 429
 430                 gnutls_init(&client, GNUTLS_CLIENT);
 431
 432                 ret =
 433                     gnutls_priority_set_direct(client, cipher_prio, &str);
 434                 if (ret < 0) {
 435                         fprintf(stderr, "Error in %s\n", str);
 436                         exit(1);
 437                 }
 438                 gnutls_credentials_set(client, GNUTLS_CRD_ANON,
 439                                        c_anoncred);
 440                 gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
 441                                        c_certcred);
 442
 443                 gnutls_transport_set_push_function(client, client_push);
 444                 gnutls_transport_set_pull_function(client, client_pull);
 445                 gnutls_transport_set_ptr(client,
 446                                          (gnutls_transport_ptr_t) client);
 447
 448                 gettime(&tr_start);
 449
 450                 HANDSHAKE(client, server);
 451
 452                 gettime(&tr_stop);
 453
 454                 if (suite == NULL)
 455                         suite =
 456                             gnutls_cipher_suite_get_name(gnutls_kx_get
 457                                                          (server),
 458                                                          gnutls_cipher_get
 459                                                          (server),
 460                                                          gnutls_mac_get
 461                                                          (server));
 462
 463                 gnutls_deinit(client);
 464                 gnutls_deinit(server);
 465
 466                 diffs[diffs_size++] = timespec_sub_ms(&tr_stop, &tr_start);
 467                 if (diffs_size > sizeof(diffs))
 468                         abort();
 469
 470                 st.size += 1;
 471         }
 472         while (benchmark_must_finish == 0);
 473
 474         fprintf(stdout, "%38s  ", suite);
 475         stop_benchmark(&st, "transactions", 1);
 476
 477         avg = calc_avg(diffs, diffs_size);
 478         sstddev = calc_sstdev(diffs, diffs_size, avg);
 479
 480         printf("%32s %.2f ms, sample variance: %.2f)\n",
 481                "(avg. handshake time:", avg, sstddev);
 482
 483         gnutls_anon_free_client_credentials(c_anoncred);
 484         gnutls_anon_free_server_credentials(s_anoncred);
 485
 486         gnutls_dh_params_deinit(dh_params);
 487
 488 }
 489
 490 void benchmark_tls(int debug_level, int ciphers)
 491 {
 492         int size;
 493
 494         gnutls_global_set_log_function(tls_log_func);
 495         gnutls_global_set_log_level(debug_level);
 496         gnutls_global_init();
 497
 498         if (ciphers != 0) {
 499                 size = 1400;
 500                 printf
 501                     ("Testing throughput in cipher/MAC combinations (payload: %d bytes)\n",
 502                      size);
 503
 504                 test_ciphersuite(PRIO_ARCFOUR_128_SHA1, size);
 505                 test_ciphersuite(PRIO_ARCFOUR_128_MD5, size);
 506                 test_ciphersuite(PRIO_AES_GCM, size);
 507                 test_ciphersuite(PRIO_AES_CBC_SHA1, size);
 508                 test_ciphersuite(PRIO_CAMELLIA_CBC_SHA1, size);
 509
 510                 size = 15 * 1024;
 511                 printf
 512                     ("\nTesting throughput in cipher/MAC combinations (payload: %d bytes)\n",
 513                      size);
 514                 test_ciphersuite(PRIO_ARCFOUR_128_SHA1, size);
 515                 test_ciphersuite(PRIO_ARCFOUR_128_MD5, size);
 516                 test_ciphersuite(PRIO_AES_GCM, size);
 517                 test_ciphersuite(PRIO_AES_CBC_SHA1, size);
 518                 test_ciphersuite(PRIO_CAMELLIA_CBC_SHA1, size);
 519         } else {
 520                 printf
 521                     ("Testing key exchanges (RSA/DH bits: %d, EC bits: %d)\n",
 522                      rsa_bits, ec_bits);
 523                 test_ciphersuite_kx(PRIO_DH);
 524                 test_ciphersuite_kx(PRIO_ECDH);
 525                 test_ciphersuite_kx(PRIO_ECDHE_ECDSA);
 526                 test_ciphersuite_kx(PRIO_RSA);
 527         }
 528
 529         gnutls_global_deinit();
 530
 531 }