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"
29 static struct timeval thistime, lasttime;
31 static double *lastclock = &x;
33 gettimeofday(&thistime, NULL);
34 *lastclock += (thistime.tv_sec - lasttime.tv_sec) + 0.000001 * (thistime.tv_usec - lasttime.tv_usec);
38 #include <sys/signal.h>
39 volatile BOOL quit = 0;
40 void mysignal(int signo)
47 int main(int argc, char **argv)
49 char buf[65536]; size_t bufsize;
50 char buf2[65536]; size_t buf2size;
51 d0_blind_id_t *ctx_self, *ctx_other;
53 d0_blind_id_INITIALIZE();
54 ctx_self = d0_blind_id_new();
55 ctx_other = d0_blind_id_new();
57 printf("keygen RSA...\n");
58 if(!d0_blind_id_generate_private_key(ctx_self, 1024))
59 errx(1, "keygen fail");
60 buf2size = sizeof(buf2) - 1;
61 if(!d0_blind_id_fingerprint64_public_key(ctx_self, buf2, &buf2size))
63 printf("key has fingerprint %s\n", buf2);
64 bufsize = sizeof(buf); if(!d0_blind_id_write_public_key(ctx_self, buf, &bufsize))
65 errx(2, "writepub fail");
66 if(!d0_blind_id_read_public_key(ctx_other, buf, bufsize))
67 errx(3, "readpub fail");
69 printf("keygen modulus...\n");
70 if(!d0_blind_id_generate_private_id_modulus(ctx_other))
71 errx(1, "keygen fail");
73 bufsize = sizeof(buf); if(!d0_blind_id_write_private_id_modulus(ctx_other, buf, &bufsize))
74 errx(2, "writepub fail");
75 if(!d0_blind_id_read_private_id_modulus(ctx_self, buf, bufsize))
76 errx(3, "readpub fail");
79 signal(SIGINT, mysignal);
82 double bench_gen = 0, bench_fp = 0, bench_stop = 0;
86 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_start(ctx_other))
87 errx(4, "genid fail");
89 buf2size = sizeof(buf2) - 1; if(!d0_blind_id_fingerprint64_public_id(ctx_other, buf2, &buf2size))
93 printf("gen=%f fp=%f\n", n/bench_gen, n/bench_fp);
96 while(!(quit || argc != 2 || (buf2size > strlen(argv[1]) && !memcmp(buf2, argv[1], strlen(argv[1])))));
99 printf("Generated key has ID: %s\n", buf2);
101 bufsize = sizeof(buf); if(!d0_blind_id_generate_private_id_request(ctx_other, buf, &bufsize))
102 errx(4, "genreq fail");
103 buf2size = sizeof(buf2); if(!d0_blind_id_answer_private_id_request(ctx_self, buf, bufsize, buf2, &buf2size))
104 errx(5, "ansreq fail");
105 if(!d0_blind_id_finish_private_id_request(ctx_other, buf2, buf2size))
106 errx(6, "finishreq fail");
108 bufsize = sizeof(buf); if(!d0_blind_id_write_public_id(ctx_other, buf, &bufsize))
109 errx(7, "writepub2 fail");
110 if(!d0_blind_id_read_public_id(ctx_self, buf, bufsize))
111 errx(8, "readpub2 fail");
114 double bench_auth = 0, bench_chall = 0, bench_resp = 0, bench_verify = 0, bench_dhkey1 = 0, bench_dhkey2 = 0;
119 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_start(ctx_other, 1, 1, "hello world", 11, buf, &bufsize))
120 errx(9, "start fail");
122 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_challenge(ctx_self, 1, 1, buf, bufsize, buf2, &buf2size, NULL))
123 errx(10, "challenge fail");
125 bufsize = sizeof(buf); if(!d0_blind_id_authenticate_with_private_id_response(ctx_other, buf2, buf2size, buf, &bufsize))
126 errx(11, "response fail");
127 bench(&bench_verify);
128 buf2size = sizeof(buf2); if(!d0_blind_id_authenticate_with_private_id_verify(ctx_self, buf, bufsize, buf2, &buf2size, &status))
129 errx(12, "verify fail");
130 if(buf2size != 11 || memcmp(buf2, "hello world", 11))
131 errx(13, "hello fail");
133 errx(14, "signature fail");
134 bench(&bench_dhkey1);
135 bufsize = sizeof(buf); if(!d0_blind_id_sessionkey_public_id(ctx_self, buf, &bufsize))
136 errx(15, "dhkey1 fail");
137 bench(&bench_dhkey2);
138 buf2size = sizeof(buf2); if(!d0_blind_id_sessionkey_public_id(ctx_other, buf2, &buf2size))
139 errx(16, "dhkey2 fail");
141 if(bufsize != buf2size || memcmp(buf, buf2, bufsize))
142 errx(17, "dhkey match fail");
145 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);