2 Blind-ID library for user identification using RSA blind signatures
3 Copyright (C) 2010 Rudolf Polzer
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.
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.
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
20 #include "d0_blind_id.h"
28 static struct timespec thistime, lasttime;
30 static double *lastclock = &x;
32 clock_gettime(CLOCK_MONOTONIC, &thistime);
33 *lastclock += (thistime.tv_sec - lasttime.tv_sec) + 0.000000001 * (thistime.tv_nsec - lasttime.tv_nsec);
37 #include <sys/signal.h>
38 volatile BOOL quit = 0;
39 void mysignal(int signo)
46 int main(int argc, char **argv)
48 char buf[65536]; size_t bufsize;
49 char buf2[65536]; size_t buf2size;
50 d0_blind_id_t *ctx_self, *ctx_other;
52 d0_blind_id_INITIALIZE();
53 ctx_self = d0_blind_id_new();
54 ctx_other = d0_blind_id_new();
56 printf("keygen RSA...\n");
57 if(!d0_blind_id_generate_private_key(ctx_self, 1024))
58 errx(1, "keygen fail");
59 bufsize = sizeof(buf); if(!d0_blind_id_write_public_key(ctx_self, buf, &bufsize))
60 errx(2, "writepub fail");
61 if(!d0_blind_id_read_public_key(ctx_other, buf, bufsize))
62 errx(3, "readpub fail");
64 printf("keygen modulus...\n");
65 if(!d0_blind_id_generate_private_id_modulus(ctx_other))
66 errx(1, "keygen fail");
68 bufsize = sizeof(buf); if(!d0_blind_id_write_private_id_modulus(ctx_other, buf, &bufsize))
69 errx(2, "writepub fail");
70 if(!d0_blind_id_read_private_id_modulus(ctx_self, buf, bufsize))
71 errx(3, "readpub fail");
74 signal(SIGINT, mysignal);
77 double bench_gen = 0, bench_fp = 0, bench_stop = 0;
81 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_start(ctx_other))
82 errx(4, "genid fail");
84 buf2size = sizeof(buf2) - 1; if(!d0_blind_id_fingerprint64_public_id(ctx_other, buf2, &buf2size))
88 printf("gen=%f fp=%f\n", n/bench_gen, n/bench_fp);
91 while(!(quit || argc != 2 || (buf2size > strlen(argv[1]) && !memcmp(buf2, argv[1], strlen(argv[1])))));
94 printf("Generated key has ID: %s\n", buf2);
96 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_request(ctx_other, buf, &bufsize))
97 errx(4, "genreq fail");
98 buf2size = sizeof(buf2); if(!d0_blind_id_answer_private_id_request(ctx_self, buf, bufsize, buf2, &buf2size))
99 errx(5, "ansreq fail");
100 if(!d0_blind_id_finish_private_id_request(ctx_other, buf2, buf2size))
101 errx(6, "finishreq fail");
103 bufsize = sizeof(buf); if(!d0_blind_id_write_public_id(ctx_other, buf, &bufsize))
104 errx(7, "writepub2 fail");
105 if(!d0_blind_id_read_public_id(ctx_self, buf, bufsize))
106 errx(8, "readpub2 fail");
109 double bench_auth = 0, bench_chall = 0, bench_resp = 0, bench_verify = 0, bench_dhkey1 = 0, bench_dhkey2 = 0;
114 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_start(ctx_other, 1, 1, "hello world", 11, buf, &bufsize))
115 errx(9, "start fail");
117 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_challenge(ctx_self, 1, 1, buf, bufsize, buf2, &buf2size, NULL))
118 errx(10, "challenge fail");
120 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_response(ctx_other, 1, buf2, buf2size, buf, &bufsize))
121 errx(11, "response fail");
122 bench(&bench_verify);
123 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_verify(ctx_self, buf, bufsize, buf2, &buf2size, &status))
124 errx(12, "verify fail");
125 if(buf2size != 11 || memcmp(buf2, "hello world", 11))
126 errx(13, "hello fail");
128 errx(14, "signature fail");
129 bench(&bench_dhkey1);
130 bufsize = sizeof(buf); if(!d0_blind_id_sessionkey_public_id(ctx_self, buf, &bufsize))
131 errx(15, "dhkey1 fail");
132 bench(&bench_dhkey2);
133 buf2size = sizeof(buf2); if(!d0_blind_id_sessionkey_public_id(ctx_other, buf2, &buf2size))
134 errx(16, "dhkey2 fail");
136 if(bufsize != buf2size || memcmp(buf, buf2, bufsize))
137 errx(17, "dhkey match fail");
140 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);