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_AES_CCM "NONE:+VERS-TLS1.2:+AES-128-CCM:+AEAD:+SIGN-ALL:+COMP-NULL:+RSA"
  57 #define PRIO_CHACHA_POLY1305 "NONE:+VERS-TLS1.2:+CHACHA20-POLY1305:+AEAD:+SIGN-ALL:+COMP-NULL:+ECDHE-RSA:+CURVE-ALL"
  58 #define PRIO_CAMELLIA_CBC_SHA1 "NONE:+VERS-TLS1.0:+CAMELLIA-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA"
  59
  60 static const int rsa_bits = 3072, ec_bits = 256;
  61
  62 /* DH of 3072 bits that is pretty close equivalent to 256 bits of ECDH.
  63  */
  64 const char *pkcs3 =
  65     "-----BEGIN DH PARAMETERS-----\n"
  66     "MIIDDQKCAYEAtnlQsMzw6EdzVgv59IvDCNXDz+V5F6S95ies6VuP2najcePLCPa4\n"
  67     "yLCcQabhjV+rSpYxvqEo1hHMhAZPPsrHP3CCzFlqkSY2mmryC5LfWnoJnJCA5RSs\n"
  68     "kWNlxyJ/fkXWseFKDm+E3W/yZXxBJxf3BevlcF7hMXuOrv5tGOdiltWsCrZglEMC\n"
  69     "IO3NcvEwLp7Y/OuHk4J2upJSLJqL2mUoYgOUAwhoM9oh6ucjPJ0Ha/HqNRe0zdup\n"
  70     "0wnwSbjBR0xa2HdHv5hr0OPk6sma0Zj1cVNi3u5xlMeiirbtEBuRPfM4mrMkhK8F\n"
  71     "YBhVV7YRf+WMw8v9VhfeX+GYuE4oMdv6tJBwWoj0RdhgpD6BMG7uHwM7WOn5ZukA\n"
  72     "sn9eGsXRog2gCmckUfOGn5oQWXRk1sv2myeu75GAaIPIsXMWBsJNCfxVBbi7pEU9\n"
  73     "IQgi6JoLlRnvXVa2GaoVEdAuH0dl6QSIRmNeZ3VKa0ZCx1DHn/WVIt2ooMec5lCY\n"
  74     "JGCqIT3tQUUzAoIBgFYzCrFBoleurEimohHxnFKMY0E0feGA0qLPDUa+Ys/4wsr6\n"
  75     "SabuE9X69EHVDu4xGlbS4w9k5sMfXTqgVGIN43jbWuoN1FAdPp8YdbXACB3k+IoN\n"
  76     "cCj/Ju90Tc/NOTwHN/4Axsy0LpeP+eknb48eQw6mYsHCvN9ytmLqC8AG11G+aTrF\n"
  77     "boVeI7pCbfuls/cRNl4POuSyv+R12Evs1qXLoSW4crPEDvVpbIrgirjQNJbosfZY\n"
  78     "5Pxf2Ofpidy1slINQqx8zhILTikl0AdfYAlnBVFEOKg1HF+EnvNbcXW0QDxxnFF/\n"
  79     "W+Yv0xQpFw9UDa+hdwEVvdrDopqvuvg9BCwCfxT3vGN300RDqWAVGJUknXN4T5MZ\n"
  80     "+fZrtZMhbWDCsOHMcVcUPqul7V5uQX7EAhUnfBKxE1I5NK9J8wtHeUEYioI8f7XY\n"
  81     "Be6/w7WHHspV4fwIOfWUD5G0c++NxED+JwDyc8aU/qVOXVikOXwVTB/2oyatkoBX\n"
  82     "r8Y+1FUiZGhRCT9dbgICAQA=\n"
  83     "-----END DH PARAMETERS-----\n";
  84
  85 static unsigned char server_cert_pem[] =
  86     "-----BEGIN CERTIFICATE-----\n"
  87     "MIIEOjCCAqKgAwIBAgIMU+I+KjQZpH+ZdjOlMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"
  88     "BgNVBAMTBENBLTAwIhgPMjAxNDA4MDYxNDM5MzhaGA85OTk5MTIzMTIzNTk1OVow\n"
  89     "EzERMA8GA1UEAxMIc2VydmVyLTEwggGiMA0GCSqGSIb3DQEBAQUAA4IBjwAwggGK\n"
  90     "AoIBgQDswF+JIWGcyu+JfjTcM8UDRKaxOuLVY0SODV1uaXPB5ZW9nEX/FFYIG+ld\n"
  91     "SKCyz5JF5ThrdvwqO+GVByuvETJdM7N4i8fzGHU8WIsj/CABAV+SaDT/xb+h1ar9\n"
  92     "dIehKelBmXQADVFX+xvu9OM5Ft3P/wyO9gWWrR7e/MU/SVzWzMT69+5YoE4QkrYY\n"
  93     "CuEBtlVHDo2mmNWGSQ5tUVIWARgXbqsmj4voWkutE/CiT0+g6GQilMARkROElIhO\n"
  94     "5NH+u3/Lt2wRQO5tEP1JmSoqvrMOmF16txze8qMzvKg1Eafijv9DR4NcCc6s8+g+\n"
  95     "CZbyODSdAybiyKsC7JCIrQjsnAjgPKKBLuZ1NTmu5liuXO05XsdcBoKDbKNAQdJC\n"
  96     "z4uxfqTr4CGFgHQk48Nhmq01EGmpwAeA/BOCB5qsWzqURtMX8EVB1Zdo3LD5Vwz1\n"
  97     "8mm+ZdeLPlYy3L/FBpVPDbYoZlFgINUNCQvGgvzqGJAQrKR4w8X/Y6HH9R8sv+U8\n"
  98     "kNtQI90CAwEAAaOBjTCBijAMBgNVHRMBAf8EAjAAMBQGA1UdEQQNMAuCCWxvY2Fs\n"
  99     "aG9zdDATBgNVHSUEDDAKBggrBgEFBQcDATAPBgNVHQ8BAf8EBQMDB6AAMB0GA1Ud\n"
 100     "DgQWBBTVObJSuRlmfjIx/hqxXk4qrxtnWDAfBgNVHSMEGDAWgBQ5vvRl/1WhIqpf\n"
 101     "ZFiHs89kf3N3OTANBgkqhkiG9w0BAQsFAAOCAYEAC0KQNPASZ7adSMMM3qx0Ny8Z\n"
 102     "AkcVAtohkjlwCwhoutcavZVyTjdpGydte6nfyTWOjs6ATBV2GhpyH+nvRJaYQFAh\n"
 103     "7uksjJxptSlaQuJqUI12urzx6BX0kenwh7nNwnLOngSBRqYwQqQdbnZf0w1DAdac\n"
 104     "vSa/Y1PrDpcXyPHpk7pDrtI9Mj24rIbvjeWM1RfgkNQYLPkZBDQqKkc5UrCA5y3v\n"
 105     "3motWyTdfvVYL7KWcEmGeKsWaTDkahd8Xhx29WvE4P740AOvXm/nkrE+PkHODbXi\n"
 106     "iD0a4cO2FPjjVt5ji+iaJTaXBEd9GHklKE6ZTZhj5az9ygQj1m6HZ2i3shWtG2ks\n"
 107     "AjgnGzsA8Wm/5X6YyR8UND41rS/lAc9yx8Az9Hqzfg8aOyvixYVPNKoTEPAMmypA\n"
 108     "oQT6g4b989lZFcjrwnLCrwz83jPD683p5IenCnRI5yhuFoQauy2tgHIbC1FRgs0C\n"
 109     "dyiOeDh80u1fekMVjRztIAwavuwxI6XgRzPSHhWR\n"
 110     "-----END CERTIFICATE-----\n";
 111
 112 static unsigned char server_key_pem[] =
 113     "-----BEGIN RSA PRIVATE KEY-----\n"
 114     "MIIG5gIBAAKCAYEA7MBfiSFhnMrviX403DPFA0SmsTri1WNEjg1dbmlzweWVvZxF\n"
 115     "/xRWCBvpXUigss+SReU4a3b8KjvhlQcrrxEyXTOzeIvH8xh1PFiLI/wgAQFfkmg0\n"
 116     "/8W/odWq/XSHoSnpQZl0AA1RV/sb7vTjORbdz/8MjvYFlq0e3vzFP0lc1szE+vfu\n"
 117     "WKBOEJK2GArhAbZVRw6NppjVhkkObVFSFgEYF26rJo+L6FpLrRPwok9PoOhkIpTA\n"
 118     "EZEThJSITuTR/rt/y7dsEUDubRD9SZkqKr6zDphdercc3vKjM7yoNRGn4o7/Q0eD\n"
 119     "XAnOrPPoPgmW8jg0nQMm4sirAuyQiK0I7JwI4DyigS7mdTU5ruZYrlztOV7HXAaC\n"
 120     "g2yjQEHSQs+LsX6k6+AhhYB0JOPDYZqtNRBpqcAHgPwTggearFs6lEbTF/BFQdWX\n"
 121     "aNyw+VcM9fJpvmXXiz5WMty/xQaVTw22KGZRYCDVDQkLxoL86hiQEKykeMPF/2Oh\n"
 122     "x/UfLL/lPJDbUCPdAgMBAAECggGBAOZzh0sjbDHENBBhAjFKTz6UJ7IigMR3oTao\n"
 123     "+cZM7XnS8cQkhtn5wJiaGrlLxejoNhjFO/sXUfQGX9nBphr+IUkp10vCvHn717pK\n"
 124     "8f2wILL51D7eIqDJq3RrWMroEFGnSz8okQqv6/s5GgKq6zcZ9AXP3TiXb+8wSvmB\n"
 125     "kLq+vZj0r9UfWyl3uSVWuduDU2xoQHAvUWDWKhpRqLJuUvnKTNoaRoz9c5FTu5AY\n"
 126     "9cX4b6lQLJCgvKkcz6PhNSGeiG5tsONi89sNuF3MYO+a4JBpD3l/lj1inHDEhlpd\n"
 127     "xHdbXNv4vw2rJECt5O8Ff3aT3g3voenP0xbfrQ5m6dIrEscU1KMkYIg+wCVV+oNj\n"
 128     "4OhmBvdN/mXKEFpxKNk6C78feA1+ZygNWeBhgY0hiA98oI77H9kN8iuKaOaxYbEG\n"
 129     "qCwHrPbL+fVcLKouN6i3E3kpDIp5HMx4bYWyzotXXrpAWj7D/5saBCdErH0ab4Sb\n"
 130     "2I3tZ49qDIfcKl0bdpTiidbGKasL/QKBwQD+Qlo4m2aZLYSfBxygqiLv42vpeZAB\n"
 131     "4//MeAFnxFcdF+JL6Lo3gfzP3bJ8EEq2b+psmk5yofiNDVaHTb4iOS3DX/JCmnmj\n"
 132     "+zAEfMCVLljYJlACVnyPb+8h+T0UEsQWMiFWZxsv+AbHs/cnpVtdnvO0Hg8VRrHu\n"
 133     "dpKOauuhPkpFxtbbkxJWIapvYr/jqD8m+fDSMWJuxMGKmgKiefy+pS2N7hrbNZF4\n"
 134     "OD/TdCim5qDVuSwj/g2Y7WOTf3UJ5Jo4CmMCgcEA7l9VnhEb3UrAHhGe7bAgZ4Wm\n"
 135     "1ncFVOWc9X/tju3QUpNEow6I0skav2i3A/ZA36Iy/w4Sf8RAQC+77NzBEIKyLjK1\n"
 136     "PfwXPoH2hrtD3WSQlAFG4u8DsRWt4GZY3OAzmqWenhQcUoJ1zgTyRwOFfX1R38NF\n"
 137     "8QeHck5KUUNoi56Vc7BCo/ypacz33RqzVEj6z5ScogTqC8nNn1a+/rfpTKzotJqc\n"
 138     "PJHMXTduAB6x4QHerpzGJQYucAJSD1VJbFwEWUy/AoHBAIvKb1AwIHiXThMhFdw/\n"
 139     "rnW1097JtyNS95CzahJjIIIeX4zcp4VdMmIWwcr0Kh+j6H9NV1QvOThT3P8G/0JR\n"
 140     "rZd9aPS1eaturzfIXxmmIbK1XcfrRRCXuiIzpiEjMCwD49BdX9U/yHqDt59Uiqcu\n"
 141     "fU7KOAC6nZk+F9W1c1dzp+I1MGwIsEwqtkoHQPkpx47mXEE0ZaoBA2fwxQIPj6ZB\n"
 142     "qooeHyXmjdRLGMxpUPByXHslE9+2DkPGQLkXmoGV7jRhgQKBwQDL+LnbgwpT5pXU\n"
 143     "ZQGYpABmdQAZPklKpxwTGr+dcTO0pR2zZUmBDOKdbS5F7p7+fd2jUFhWCglsoyvs\n"
 144     "d82goiVz0KI0AxWkwDLCgVWGCXqJmzocD6gaDNH3VbyubA7cQuIipFTD6ayCeMsU\n"
 145     "JxhAFE9N6NtdbzLghcukE8lOx4ldMDMl/Zq91M033pQbCEPOAn2xSgE3yxvvP5w5\n"
 146     "fAffO4n4mOAeGChGj5rJ8XoGbsIsqiwHHG36HJI5WqJ0XZy/CSMCgcEA4M05digH\n"
 147     "VZE5T/eKLFNEnUB1W9tWAzj+BAqmR1rlwQt5O3fC8F7XqkSowhcRTDHUdoOkdVz/\n"
 148     "jMgRqGs0O+cl8tLImD6d1mFR6Yxu0PHwXUwQVklW8txGGOKv0+2MFMlkFjuwCbNN\n"
 149     "XZ2rmZq/JywCJmVAH0wToXZyEqhilLZ9TLs6m2d2+2hlxJM6XmXjc7A/fC089bSX\n"
 150     "W+lG+lHYAA3tjkBWvb7YAPriahcFrRBvQb5zx4L4NXMHlXMUnA/KlMW2\n"
 151     "-----END RSA PRIVATE KEY-----\n";
 152
 153 static unsigned char server_ecc_key_pem[] =
 154     "-----BEGIN EC PRIVATE KEY-----\n"
 155     "MHgCAQEEIQDrAKCAbdMKPngHu4zdSQ2Pghob8PhyrbUpWAR8V07E+qAKBggqhkjO\n"
 156     "PQMBB6FEA0IABDfo4YLPkO4pBpQamtObIV3J6l92vI+RkyNtaQ9gtSWDj20w/aBC\n"
 157     "WlbcTsRZ2itEpJ6GdLsGOW4RRfmiubzC9JU=\n"
 158     "-----END EC PRIVATE KEY-----\n";
 159
 160 static unsigned char server_ecc_cert_pem[] =
 161     "-----BEGIN CERTIFICATE-----\n"
 162     "MIIBrjCCAVSgAwIBAgIMU+I+axGZmBD/YL96MAoGCCqGSM49BAMCMA8xDTALBgNV\n"
 163     "BAMTBENBLTAwIhgPMjAxNDA4MDYxNDQwNDNaGA85OTk5MTIzMTIzNTk1OVowEzER\n"
 164     "MA8GA1UEAxMIc2VydmVyLTEwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAAQ36OGC\n"
 165     "z5DuKQaUGprTmyFdyepfdryPkZMjbWkPYLUlg49tMP2gQlpW3E7EWdorRKSehnS7\n"
 166     "BjluEUX5orm8wvSVo4GNMIGKMAwGA1UdEwEB/wQCMAAwFAYDVR0RBA0wC4IJbG9j\n"
 167     "YWxob3N0MBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdDwEB/wQFAwMHgAAwHQYD\n"
 168     "VR0OBBYEFOuSntH2To0gJLH79Ow4wNpBuhmEMB8GA1UdIwQYMBaAFMZ1miRvZAYr\n"
 169     "nBEymOtPjbfTrnblMAoGCCqGSM49BAMCA0gAMEUCIQCMP3aBcCxSPbCUhihOsUmH\n"
 170     "G04AgT1PKw8z4LgZ4VGTVAIgYw3IFwS5sSYEAHRZAH8eaTXTz7XFmWmnkve9EBkN\n"
 171     "cBE=\n"
 172     "-----END CERTIFICATE-----\n";
 173
 174 const gnutls_datum_t server_cert = { server_cert_pem,
 175         sizeof(server_cert_pem)
 176 };
 177
 178 const gnutls_datum_t server_key = { server_key_pem,
 179         sizeof(server_key_pem)
 180 };
 181
 182 const gnutls_datum_t server_ecc_cert = { server_ecc_cert_pem,
 183         sizeof(server_ecc_cert_pem)
 184 };
 185
 186 const gnutls_datum_t server_ecc_key = { server_ecc_key_pem,
 187         sizeof(server_ecc_key_pem)
 188 };
 189
 190 char buffer[64 * 1024];
 191
 192 static void tls_log_func(int level, const char *str)
 193 {
 194         fprintf(stderr, "%s|<%d>| %s", side, level, str);
 195 }
 196
 197 static void test_ciphersuite(const char *cipher_prio, int size)
 198 {
 199         /* Server stuff. */
 200         gnutls_anon_server_credentials_t s_anoncred;
 201         gnutls_certificate_credentials_t c_certcred, s_certcred;
 202         const gnutls_datum_t p3 = { (void *) pkcs3, strlen(pkcs3) };
 203         static gnutls_dh_params_t dh_params;
 204         gnutls_session_t server;
 205         int sret, cret;
 206         const char *str;
 207         /* Client stuff. */
 208         gnutls_anon_client_credentials_t c_anoncred;
 209         gnutls_session_t client;
 210         /* Need to enable anonymous KX specifically. */
 211         int ret;
 212         struct benchmark_st st;
 213         gnutls_packet_t packet;
 214
 215         /* Init server */
 216         gnutls_anon_allocate_server_credentials(&s_anoncred);
 217         gnutls_dh_params_init(&dh_params);
 218         gnutls_dh_params_import_pkcs3(dh_params, &p3, GNUTLS_X509_FMT_PEM);
 219         gnutls_anon_set_server_dh_params(s_anoncred, dh_params);
 220
 221         gnutls_certificate_allocate_credentials(&s_certcred);
 222         gnutls_certificate_set_dh_params(s_certcred, dh_params);
 223
 224         gnutls_certificate_set_x509_key_mem(s_certcred, &server_cert,
 225                                             &server_key,
 226                                             GNUTLS_X509_FMT_PEM);
 227         gnutls_certificate_set_x509_key_mem(s_certcred, &server_ecc_cert,
 228                                             &server_ecc_key,
 229                                             GNUTLS_X509_FMT_PEM);
 230
 231         gnutls_init(&server, GNUTLS_SERVER);
 232         ret = gnutls_priority_set_direct(server, cipher_prio, &str);
 233         if (ret < 0) {
 234                 fprintf(stderr, "Error in %s\n", str);
 235                 exit(1);
 236         }
 237         gnutls_credentials_set(server, GNUTLS_CRD_ANON, s_anoncred);
 238         gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE, s_certcred);
 239         gnutls_transport_set_push_function(server, server_push);
 240         gnutls_transport_set_pull_function(server, server_pull);
 241         gnutls_transport_set_ptr(server, (gnutls_transport_ptr_t) server);
 242         reset_buffers();
 243
 244         /* Init client */
 245         gnutls_anon_allocate_client_credentials(&c_anoncred);
 246         gnutls_certificate_allocate_credentials(&c_certcred);
 247         gnutls_init(&client, GNUTLS_CLIENT);
 248
 249         ret = gnutls_priority_set_direct(client, cipher_prio, &str);
 250         if (ret < 0) {
 251                 fprintf(stderr, "Error in %s\n", str);
 252                 exit(1);
 253         }
 254         gnutls_credentials_set(client, GNUTLS_CRD_ANON, c_anoncred);
 255         gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE, c_certcred);
 256         gnutls_transport_set_push_function(client, client_push);
 257         gnutls_transport_set_pull_function(client, client_pull);
 258         gnutls_transport_set_ptr(client, (gnutls_transport_ptr_t) client);
 259
 260         HANDSHAKE(client, server);
 261
 262         fprintf(stdout, "%38s  ",
 263                 gnutls_cipher_suite_get_name(gnutls_kx_get(server),
 264                                              gnutls_cipher_get(server),
 265                                              gnutls_mac_get(server)));
 266         fflush(stdout);
 267
 268         gnutls_rnd(GNUTLS_RND_NONCE, buffer, sizeof(buffer));
 269
 270         start_benchmark(&st);
 271
 272         do {
 273                 do {
 274                         ret = gnutls_record_send(client, buffer, size);
 275                 }
 276                 while (ret == GNUTLS_E_AGAIN);
 277
 278                 if (ret < 0) {
 279                         fprintf(stderr, "Failed sending to server\n");
 280                         exit(1);
 281                 }
 282
 283                 do {
 284                         ret =
 285                             gnutls_record_recv_packet(server, &packet);
 286                 }
 287                 while (ret == GNUTLS_E_AGAIN);
 288
 289                 if (ret < 0) {
 290                         fprintf(stderr, "Failed receiving from client: %s\n", gnutls_strerror(ret));
 291                         exit(1);
 292                 }
 293
 294                 st.size += size;
 295                 gnutls_packet_deinit(packet);
 296         }
 297         while (benchmark_must_finish == 0);
 298
 299         stop_benchmark(&st, NULL, 1);
 300
 301         gnutls_bye(client, GNUTLS_SHUT_WR);
 302         gnutls_bye(server, GNUTLS_SHUT_WR);
 303
 304         gnutls_deinit(client);
 305         gnutls_deinit(server);
 306
 307         gnutls_anon_free_client_credentials(c_anoncred);
 308         gnutls_anon_free_server_credentials(s_anoncred);
 309
 310         gnutls_dh_params_deinit(dh_params);
 311
 312 }
 313
 314 static
 315 double calc_avg(unsigned int *diffs, unsigned int diffs_size)
 316 {
 317         double avg = 0;
 318         unsigned int i;
 319
 320         for (i = 0; i < diffs_size; i++)
 321                 avg += diffs[i];
 322
 323         avg /= diffs_size;
 324
 325         return avg;
 326 }
 327
 328 static
 329 double calc_sstdev(unsigned int *diffs, unsigned int diffs_size,
 330                    double avg)
 331 {
 332         double sum = 0, d;
 333         unsigned int i;
 334
 335         for (i = 0; i < diffs_size; i++) {
 336                 d = ((double) diffs[i] - avg);
 337                 d *= d;
 338
 339                 sum += d;
 340         }
 341         sum /= diffs_size - 1;
 342
 343         return sum;
 344 }
 345
 346
 347 unsigned int diffs[32 * 1024];
 348 unsigned int diffs_size = 0;
 349
 350 static void test_ciphersuite_kx(const char *cipher_prio)
 351 {
 352         /* Server stuff. */
 353         gnutls_anon_server_credentials_t s_anoncred;
 354         const gnutls_datum_t p3 = { (void *) pkcs3, strlen(pkcs3) };
 355         static gnutls_dh_params_t dh_params;
 356         gnutls_session_t server;
 357         int sret, cret;
 358         const char *str;
 359         const char *suite = NULL;
 360         /* Client stuff. */
 361         gnutls_anon_client_credentials_t c_anoncred;
 362         gnutls_certificate_credentials_t c_certcred, s_certcred;
 363         gnutls_session_t client;
 364         /* Need to enable anonymous KX specifically. */
 365         int ret;
 366         struct benchmark_st st;
 367         struct timespec tr_start, tr_stop;
 368         double avg, sstddev;
 369
 370         diffs_size = 0;
 371
 372         /* Init server */
 373         gnutls_certificate_allocate_credentials(&s_certcred);
 374         gnutls_anon_allocate_server_credentials(&s_anoncred);
 375         gnutls_dh_params_init(&dh_params);
 376
 377         ret =
 378              gnutls_dh_params_import_pkcs3(dh_params, &p3,
 379                                            GNUTLS_X509_FMT_PEM);
 380         if (ret < 0) {
 381                 fprintf(stderr, "Error importing the PKCS #3 params: %s\n",
 382                         gnutls_strerror(ret));
 383                 exit(1);
 384         }
 385
 386         gnutls_anon_set_server_dh_params(s_anoncred, dh_params);
 387         gnutls_certificate_set_dh_params(s_certcred, dh_params);
 388
 389         ret = gnutls_certificate_set_x509_key_mem(s_certcred, &server_cert,
 390                                             &server_key,
 391                                             GNUTLS_X509_FMT_PEM);
 392         if (ret < 0) {
 393                 fprintf(stderr, "Error in %d: %s\n", __LINE__,
 394                         gnutls_strerror(ret));
 395                 exit(1);
 396         }
 397
 398         ret = gnutls_certificate_set_x509_key_mem(s_certcred, &server_ecc_cert,
 399                                             &server_ecc_key,
 400                                             GNUTLS_X509_FMT_PEM);
 401         if (ret < 0) {
 402                 fprintf(stderr, "Error in %d: %s\n", __LINE__,
 403                         gnutls_strerror(ret));
 404                 exit(1);
 405         }
 406
 407         /* Init client */
 408         gnutls_anon_allocate_client_credentials(&c_anoncred);
 409         gnutls_certificate_allocate_credentials(&c_certcred);
 410
 411         start_benchmark(&st);
 412
 413         do {
 414
 415                 gnutls_init(&server, GNUTLS_SERVER);
 416                 ret =
 417                     gnutls_priority_set_direct(server, cipher_prio, &str);
 418                 if (ret < 0) {
 419                         fprintf(stderr, "Error in %s\n", str);
 420                         exit(1);
 421                 }
 422                 gnutls_credentials_set(server, GNUTLS_CRD_ANON,
 423                                        s_anoncred);
 424                 gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
 425                                        s_certcred);
 426                 gnutls_transport_set_push_function(server, server_push);
 427                 gnutls_transport_set_pull_function(server, server_pull);
 428                 gnutls_transport_set_ptr(server,
 429                                          (gnutls_transport_ptr_t) server);
 430                 reset_buffers();
 431
 432                 gnutls_init(&client, GNUTLS_CLIENT);
 433
 434                 ret =
 435                     gnutls_priority_set_direct(client, cipher_prio, &str);
 436                 if (ret < 0) {
 437                         fprintf(stderr, "Error in %s\n", str);
 438                         exit(1);
 439                 }
 440                 gnutls_credentials_set(client, GNUTLS_CRD_ANON,
 441                                        c_anoncred);
 442                 gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
 443                                        c_certcred);
 444
 445                 gnutls_transport_set_push_function(client, client_push);
 446                 gnutls_transport_set_pull_function(client, client_pull);
 447                 gnutls_transport_set_ptr(client,
 448                                          (gnutls_transport_ptr_t) client);
 449
 450                 gettime(&tr_start);
 451
 452                 HANDSHAKE(client, server);
 453
 454                 gettime(&tr_stop);
 455
 456                 if (suite == NULL)
 457                         suite =
 458                             gnutls_cipher_suite_get_name(gnutls_kx_get
 459                                                          (server),
 460                                                          gnutls_cipher_get
 461                                                          (server),
 462                                                          gnutls_mac_get
 463                                                          (server));
 464
 465                 gnutls_deinit(client);
 466                 gnutls_deinit(server);
 467
 468                 diffs[diffs_size++] = timespec_sub_ms(&tr_stop, &tr_start);
 469                 if (diffs_size > sizeof(diffs))
 470                         abort();
 471
 472                 st.size += 1;
 473         }
 474         while (benchmark_must_finish == 0);
 475
 476         fprintf(stdout, "%38s  ", suite);
 477         stop_benchmark(&st, "transactions", 1);
 478
 479         avg = calc_avg(diffs, diffs_size);
 480         sstddev = calc_sstdev(diffs, diffs_size, avg);
 481
 482         printf("%32s %.2f ms, sample variance: %.2f)\n",
 483                "(avg. handshake time:", avg, sstddev);
 484
 485         gnutls_anon_free_client_credentials(c_anoncred);
 486         gnutls_anon_free_server_credentials(s_anoncred);
 487
 488         gnutls_dh_params_deinit(dh_params);
 489
 490 }
 491
 492 void benchmark_tls(int debug_level, int ciphers)
 493 {
 494         int size;
 495
 496         gnutls_global_set_log_function(tls_log_func);
 497         gnutls_global_set_log_level(debug_level);
 498         gnutls_global_init();
 499
 500         if (ciphers != 0) {
 501                 size = 1400;
 502                 printf
 503                     ("Testing throughput in cipher/MAC combinations (payload: %d bytes)\n",
 504                      size);
 505
 506                 test_ciphersuite(PRIO_ARCFOUR_128_SHA1, size);
 507                 test_ciphersuite(PRIO_ARCFOUR_128_MD5, size);
 508                 test_ciphersuite(PRIO_AES_GCM, size);
 509                 test_ciphersuite(PRIO_AES_CCM, size);
 510                 test_ciphersuite(PRIO_CHACHA_POLY1305, size);
 511                 test_ciphersuite(PRIO_AES_CBC_SHA1, size);
 512                 test_ciphersuite(PRIO_CAMELLIA_CBC_SHA1, size);
 513
 514                 size = 15 * 1024;
 515                 printf
 516                     ("\nTesting throughput in cipher/MAC combinations (payload: %d bytes)\n",
 517                      size);
 518                 test_ciphersuite(PRIO_ARCFOUR_128_SHA1, size);
 519                 test_ciphersuite(PRIO_ARCFOUR_128_MD5, size);
 520                 test_ciphersuite(PRIO_AES_GCM, size);
 521                 test_ciphersuite(PRIO_AES_CCM, size);
 522                 test_ciphersuite(PRIO_CHACHA_POLY1305, size);
 523                 test_ciphersuite(PRIO_AES_CBC_SHA1, size);
 524                 test_ciphersuite(PRIO_CAMELLIA_CBC_SHA1, size);
 525         } else {
 526                 printf
 527                     ("Testing key exchanges (RSA/DH bits: %d, EC bits: %d)\n",
 528                      rsa_bits, ec_bits);
 529                 test_ciphersuite_kx(PRIO_DH);
 530                 test_ciphersuite_kx(PRIO_ECDH);
 531                 test_ciphersuite_kx(PRIO_ECDHE_ECDSA);
 532                 test_ciphersuite_kx(PRIO_RSA);
 533         }
 534
 535         gnutls_global_deinit();
 536
 537 }