main.c

   1 /*
   2 Blind-ID library for user identification using RSA blind signatures
   3 Copyright (C) 2010  Rudolf Polzer
   4
   5 This library is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU Lesser General Public
   7 License as published by the Free Software Foundation; either
   8 version 2.1 of the License, or (at your option) any later version.
   9
  10 This library is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public
  16 License along with this library; if not, write to the Free Software
  17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  18 */
  19
  20 #include "d0_blind_id.h"
  21
  22 #include <stdio.h>
  23 #include <string.h>
  24 #include <time.h>
  25
  26 void bench(double *b)
  27 {
  28         static struct timespec thistime, lasttime;
  29         static double x = 0;
  30         static double *lastclock = &x;
  31         lasttime = thistime;
  32         clock_gettime(CLOCK_MONOTONIC, &thistime);
  33         *lastclock += (thistime.tv_sec - lasttime.tv_sec) + 0.000000001 * (thistime.tv_nsec - lasttime.tv_nsec);
  34         lastclock = b;
  35 }
  36
  37 #include <sys/signal.h>
  38 volatile BOOL quit = 0;
  39 void mysignal(int signo)
  40 {
  41         (void) signo;
  42         quit = 1;
  43 }
  44
  45 #include <err.h>
  46 int main(int argc, char **argv)
  47 {
  48         char buf[65536]; size_t bufsize;
  49         char buf2[65536]; size_t buf2size; ssize_t buf2ssize;
  50         d0_blind_id_t *ctx_self, *ctx_other;
  51
  52         d0_blind_id_INITIALIZE();
  53         ctx_self = d0_blind_id_new();
  54         ctx_other = d0_blind_id_new();
  55
  56         if(!d0_blind_id_generate_private_keys(ctx_self, 1024))
  57                 errx(1, "keygen fail");
  58         bufsize = sizeof(buf); if(!d0_blind_id_write_public_keys(ctx_self, buf, &bufsize))
  59                 errx(2, "writepub fail");
  60         if(!d0_blind_id_read_public_keys(ctx_other, buf, bufsize))
  61                 errx(3, "readpub fail");
  62
  63         signal(SIGINT, mysignal);
  64
  65         int n = 0;
  66         double bench_gen = 0, bench_fp = 0, bench_stop = 0;
  67         do
  68         {
  69                 bench(&bench_gen);
  70                 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_start(ctx_other))
  71                         errx(4, "genid fail");
  72                 bench(&bench_fp);
  73                 buf2size = sizeof(buf2) - 1; if(!d0_blind_id_fingerprint64_public_id(ctx_other, buf2, &buf2size))
  74                         errx(4, "fp64 fail");
  75                 bench(&bench_stop);
  76                 if(n % 1024 == 0)
  77                         printf("gen=%f fp=%f\n", n/bench_gen, n/bench_fp);
  78                 ++n;
  79         }
  80         while(!(quit || argc != 2 || (buf2size > strlen(argv[1]) && !memcmp(buf2, argv[1], strlen(argv[1])))));
  81
  82         buf2[buf2size] = 0;
  83         printf("Generated key has ID: %s\n", buf2);
  84
  85         bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_request(ctx_other, buf, &bufsize))
  86                 errx(4, "genreq fail");
  87         buf2size = sizeof(buf2); if(!d0_blind_id_answer_private_id_request(ctx_self, buf, bufsize, buf2, &buf2size))
  88                 errx(5, "ansreq fail");
  89         if(!d0_blind_id_finish_private_id_request(ctx_other, buf2, buf2size))
  90                 errx(6, "finishreq fail");
  91
  92         bufsize = sizeof(buf); if(!d0_blind_id_write_public_id(ctx_other, buf, &bufsize))
  93                 errx(7, "writepub2 fail");
  94         if(!d0_blind_id_read_public_id(ctx_self, buf, bufsize))
  95                 errx(8, "readpub2 fail");
  96
  97         n = 0;
  98         double bench_auth = 0, bench_chall = 0, bench_resp = 0, bench_verify = 0;
  99         while(!quit)
 100         {
 101                 bench(&bench_auth);
 102                 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_start(ctx_other, 1, "hello world", 11, buf, &bufsize))
 103                         errx(9, "start fail");
 104                 bench(&bench_chall);
 105                 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_challenge(ctx_self, 1, buf, bufsize, buf2, &buf2size))
 106                         errx(10, "challenge fail");
 107                 bench(&bench_resp);
 108                 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_response(ctx_other, buf2, buf2size, buf, &bufsize))
 109                         errx(11, "response fail");
 110                 bench(&bench_verify);
 111                 buf2ssize = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_verify(ctx_self, buf, bufsize, buf2, &buf2ssize))
 112                         errx(12, "verify fail");
 113                 if(buf2ssize != 11 || memcmp(buf2, "hello world", 11))
 114                         errx(13, "hello fail");
 115                 bench(&bench_stop);
 116                 ++n;
 117                 if(n % 1024 == 0)
 118                         printf("auth=%f chall=%f resp=%f verify=%f\n", n/bench_auth, n/bench_chall, n/bench_resp, n/bench_verify);
 119         }
 120
 121         return 0;
 122 }