scripts/dh_speed.c

   1 /*
   2  * Copyright (C) 2009 Martin Willi
   3  * Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #include <stdio.h>
  17 #include <time.h>
  18 #include <assert.h>
  19 #include <library.h>
  20 #include <utils/debug.h>
  21 #include <crypto/diffie_hellman.h>
  22
  23 static void usage()
  24 {
  25         printf("usage: dh_speed plugins rounds group1 [group2 [...]]\n");
  26         exit(1);
  27 }
  28
  29 struct {
  30         char *name;
  31         diffie_hellman_group_t group;
  32 } groups[] = {
  33         {"modp768",                     MODP_768_BIT},
  34         {"modp1024",            MODP_1024_BIT},
  35         {"modp1024s160",        MODP_1024_160},
  36         {"modp1536",            MODP_1536_BIT},
  37         {"modp2048",            MODP_2048_BIT},
  38         {"modp2048s224",        MODP_2048_224},
  39         {"modp2048s256",        MODP_2048_256},
  40         {"modp3072",            MODP_3072_BIT},
  41         {"modp4096",            MODP_4096_BIT},
  42         {"modp6144",            MODP_6144_BIT},
  43         {"modp8192",            MODP_8192_BIT},
  44         {"ecp256",                      ECP_256_BIT},
  45         {"ecp384",                      ECP_384_BIT},
  46         {"ecp521",                      ECP_521_BIT},
  47         {"ecp192",                      ECP_192_BIT},
  48         {"ecp224",                      ECP_224_BIT},
  49 };
  50
  51 static void start_timing(struct timespec *start)
  52 {
  53         clock_gettime(CLOCK_THREAD_CPUTIME_ID, start);
  54 }
  55
  56 static double end_timing(struct timespec *start)
  57 {
  58         struct timespec end;
  59
  60         clock_gettime(CLOCK_THREAD_CPUTIME_ID, &end);
  61         return (end.tv_nsec - start->tv_nsec) / 1000000000.0 +
  62                         (end.tv_sec - start->tv_sec) * 1.0;
  63 }
  64
  65 static void run_test(diffie_hellman_group_t group, int rounds)
  66 {
  67         diffie_hellman_t *l[rounds], *r;
  68         chunk_t chunk;
  69         struct timespec timing;
  70         int round;
  71
  72         r = lib->crypto->create_dh(lib->crypto, group);
  73         if (!r)
  74         {
  75                 printf("skipping %N, not supported\n",
  76                                 diffie_hellman_group_names, group);
  77                 return;
  78         }
  79
  80         printf("%N:\t",
  81                         diffie_hellman_group_names, group);
  82
  83         start_timing(&timing);
  84         for (round = 0; round < rounds; round++)
  85         {
  86                 l[round] = lib->crypto->create_dh(lib->crypto, group);
  87         }
  88         printf("A = g^a/s: %8.1f", rounds / end_timing(&timing));
  89
  90         for (round = 0; round < rounds; round++)
  91         {
  92                 assert(l[round]->get_my_public_value(l[round], &chunk));
  93                 assert(r->set_other_public_value(r, chunk));
  94                 chunk_free(&chunk);
  95         }
  96
  97         assert(r->get_my_public_value(r, &chunk));
  98         start_timing(&timing);
  99         for (round = 0; round < rounds; round++)
 100         {
 101                 assert(l[round]->set_other_public_value(l[round], chunk));
 102         }
 103         printf(" | S = B^a/s: %8.1f\n", rounds / end_timing(&timing));
 104         chunk_free(&chunk);
 105
 106         for (round = 0; round < rounds; round++)
 107         {
 108                 l[round]->destroy(l[round]);
 109         }
 110         r->destroy(r);
 111 }
 112
 113 int main(int argc, char *argv[])
 114 {
 115         int rounds, i, j;
 116
 117         if (argc < 4)
 118         {
 119                 usage();
 120         }
 121
 122         library_init(NULL, "dh_speed");
 123         lib->plugins->load(lib->plugins, argv[1]);
 124         atexit(library_deinit);
 125
 126         rounds = atoi(argv[2]);
 127
 128         for (i = 3; i < argc; i++)
 129         {
 130                 bool found = FALSE;
 131
 132                 for (j = 0; j < countof(groups); j++)
 133                 {
 134                         if (streq(groups[j].name, argv[i]))
 135                         {
 136                                 run_test(groups[j].group, rounds);
 137                                 found = TRUE;
 138                         }
 139                 }
 140                 if (!found)
 141                 {
 142                         printf("group %s not found\n", argv[i]);
 143                 }
 144         }
 145         return 0;
 146 }