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 #include <sys/time.h>
  26
  27 void bench(double *b)
  28 {
  29         static struct timeval thistime, lasttime;
  30         static double x = 0;
  31         static double *lastclock = &x;
  32         lasttime = thistime;
  33         gettimeofday(&thistime, NULL);
  34         *lastclock += (thistime.tv_sec - lasttime.tv_sec) + 0.000001 * (thistime.tv_usec - lasttime.tv_usec);
  35         lastclock = b;
  36 }
  37
  38 #ifndef WIN32
  39 #include <sys/signal.h>
  40 #endif
  41 volatile BOOL quit = 0;
  42 void mysignal(int signo)
  43 {
  44         (void) signo;
  45         quit = 1;
  46 }
  47
  48 #include <stdarg.h>
  49 #include <stdlib.h>
  50 static void errx(int status, const char *format, ...)
  51 {
  52         va_list ap;
  53         va_start(ap, format);
  54         vfprintf(stderr, format, ap);
  55         fputs("\n", stderr);
  56         exit(status);
  57 }
  58
  59 int main(int argc, char **argv)
  60 {
  61         char buf[65536]; size_t bufsize;
  62         char buf2[65536]; size_t buf2size;
  63         d0_blind_id_t *ctx_self, *ctx_other;
  64
  65         d0_blind_id_INITIALIZE();
  66         ctx_self = d0_blind_id_new();
  67         ctx_other = d0_blind_id_new();
  68
  69         printf("keygen RSA...\n");
  70         if(!d0_blind_id_generate_private_key(ctx_self, 1024))
  71                 errx(1, "keygen fail");
  72         buf2size = sizeof(buf2) - 1;
  73         if(!d0_blind_id_fingerprint64_public_key(ctx_self, buf2, &buf2size))
  74                 errx(2, "fp64 fail");
  75         printf("key has fingerprint %s\n", buf2);
  76         bufsize = sizeof(buf); if(!d0_blind_id_write_public_key(ctx_self, buf, &bufsize))
  77                 errx(2, "writepub fail");
  78         if(!d0_blind_id_read_public_key(ctx_other, buf, bufsize))
  79                 errx(3, "readpub fail");
  80
  81         printf("keygen modulus...\n");
  82         if(!d0_blind_id_generate_private_id_modulus(ctx_other))
  83                 errx(1, "keygen fail");
  84         /*
  85         bufsize = sizeof(buf); if(!d0_blind_id_write_private_id_modulus(ctx_other, buf, &bufsize))
  86                 errx(2, "writepub fail");
  87         if(!d0_blind_id_read_private_id_modulus(ctx_self, buf, bufsize))
  88                 errx(3, "readpub fail");
  89         */
  90
  91 #ifndef WIN32
  92         signal(SIGINT, mysignal);
  93 #endif
  94
  95         int n = 0;
  96         double bench_gen = 0, bench_fp = 0, bench_stop = 0;
  97         do
  98         {
  99                 bench(&bench_gen);
 100                 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_start(ctx_other))
 101                         errx(4, "genid fail");
 102                 bench(&bench_fp);
 103                 buf2size = sizeof(buf2) - 1; if(!d0_blind_id_fingerprint64_public_id(ctx_other, buf2, &buf2size))
 104                         errx(4, "fp64 fail");
 105                 bench(&bench_stop);
 106                 if(n % 1024 == 0)
 107                         printf("gen=%f fp=%f\n", n/bench_gen, n/bench_fp);
 108                 ++n;
 109         }
 110         while(!(quit || argc != 2 || (buf2size > strlen(argv[1]) && !memcmp(buf2, argv[1], strlen(argv[1])))));
 111
 112         buf2[buf2size] = 0;
 113         printf("Generated key has ID: %s\n", buf2);
 114
 115         bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_request(ctx_other, buf, &bufsize))
 116                 errx(4, "genreq fail");
 117         buf2size = sizeof(buf2); if(!d0_blind_id_answer_private_id_request(ctx_self, buf, bufsize, buf2, &buf2size))
 118                 errx(5, "ansreq fail");
 119         if(!d0_blind_id_finish_private_id_request(ctx_other, buf2, buf2size))
 120                 errx(6, "finishreq fail");
 121
 122         bufsize = sizeof(buf); if(!d0_blind_id_write_public_id(ctx_other, buf, &bufsize))
 123                 errx(7, "writepub2 fail");
 124         if(!d0_blind_id_read_public_id(ctx_self, buf, bufsize))
 125                 errx(8, "readpub2 fail");
 126
 127         n = 0;
 128         double bench_auth = 0, bench_chall = 0, bench_resp = 0, bench_verify = 0, bench_dhkey1 = 0, bench_dhkey2 = 0;
 129         BOOL status;
 130         while(!quit)
 131         {
 132                 bench(&bench_auth);
 133                 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_start(ctx_other, 1, 1, "hello world", 11, buf, &bufsize))
 134                         errx(9, "start fail");
 135                 bench(&bench_chall);
 136                 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_challenge(ctx_self, 1, 1, buf, bufsize, buf2, &buf2size, &status))
 137                         errx(10, "challenge fail");
 138                 if(!status)
 139                         errx(14, "signature prefail");
 140                 bench(&bench_resp);
 141                 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_response(ctx_other, buf2, buf2size, buf, &bufsize))
 142                         errx(11, "response fail");
 143                 bench(&bench_verify);
 144                 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_verify(ctx_self, buf, bufsize, buf2, &buf2size, &status))
 145                         errx(12, "verify fail");
 146                 if(buf2size != 11 || memcmp(buf2, "hello world", 11))
 147                         errx(13, "hello fail");
 148                 if(!status)
 149                         errx(14, "signature fail");
 150                 bench(&bench_dhkey1);
 151                 bufsize = 20; if(!d0_blind_id_sessionkey_public_id(ctx_self, buf, &bufsize))
 152                         errx(15, "dhkey1 fail");
 153                 bench(&bench_dhkey2);
 154                 buf2size = 20; if(!d0_blind_id_sessionkey_public_id(ctx_other, buf2, &buf2size))
 155                         errx(16, "dhkey2 fail");
 156                 bench(&bench_stop);
 157                 if(bufsize != buf2size || memcmp(buf, buf2, bufsize))
 158                         errx(17, "dhkey match fail");
 159                 ++n;
 160                 if(n % 1024 == 0)
 161                         printf("auth=%f chall=%f resp=%f verify=%f dh1=%f dh2=%f\n", n/bench_auth, n/bench_chall, n/bench_resp, n/bench_verify, n/bench_dhkey1, n/bench_dhkey2);
 162         }
 163
 164         return 0;
 165 }