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1 /*****************************************************************************
2 * WARNING
3 *
4 * THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
5 *
6 * USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
7 * PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
8 * AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
9 *
10 * THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
11 *
12 *****************************************************************************
13 *
14 * This file is part of loclass. It is a reconstructon of the cipher engine
15 * used in iClass, and RFID techology.
16 *
17 * The implementation is based on the work performed by
18 * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
19 * Milosch Meriac in the paper "Dismantling IClass".
20 *
21 * Copyright (C) 2014 Martin Holst Swende
22 *
23 * This is free software: you can redistribute it and/or modify
24 * it under the terms of the GNU General Public License version 2 as published
25 * by the Free Software Foundation.
26 *
27 * This file is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License
33 * along with loclass. If not, see <http://www.gnu.org/licenses/>.
34 *
35 *
36 *
37 ****************************************************************************/
38
39
40 #include <stdio.h>
41 #include <cipherutils.h>
42 #include <stdint.h>
43 #include <stdbool.h>
44 #include <string.h>
45 #include <unistd.h>
46 #include <ctype.h>
47 #include "cipherutils.h"
48 #include "cipher.h"
49 #include "ikeys.h"
50 #include "fileutils.h"
51 #include "elite_crack.h"
52
53 int unitTests()
54 {
55 int errors = testCipherUtils();
56 errors += testMAC();
57 errors += doKeyTests(0);
58 errors += testElite();
59 return errors;
60 }
61 int showHelp()
62 {
63 prnlog("Usage: iclazz [options]");
64 prnlog("Options:");
65 prnlog("-t Perform self-test");
66 prnlog("-h Show this help");
67 prnlog("-f <filename> Bruteforce iclass dumpfile");
68 prnlog(" An iclass dumpfile is assumed to consist of an arbitrary number of malicious CSNs, and their protocol responses");
69 prnlog(" The the binary format of the file is expected to be as follows: ");
70 prnlog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
71 prnlog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
72 prnlog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
73 prnlog(" ... totalling N*24 bytes");
74 prnlog(" Check iclass_dump.bin for an example");
75
76 return 0;
77 }
78
79 int main (int argc, char **argv)
80 {
81
82
83 prnlog("IClass Cipher version 1.2, Copyright (C) 2014 Martin Holst Swende\n");
84 prnlog("Comes with ABSOLUTELY NO WARRANTY");
85 prnlog("Released as GPLv2\n");
86 prnlog("WARNING");
87 prnlog("");
88 prnlog("THIS TOOL IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY. ");
89 prnlog("");
90 prnlog("USAGE OF THIS TOOL IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL ");
91 prnlog("PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL, ");
92 prnlog("AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES. ");
93 prnlog("");
94 prnlog("THIS TOOL SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS. ");
95
96
97 char *fileName = NULL;
98 int c;
99 while ((c = getopt (argc, argv, "thf:")) != -1)
100 switch (c)
101 {
102 case 't':
103 return unitTests();
104 case 'h':
105 return showHelp();
106 case 'f':
107 fileName = optarg;
108 return bruteforceFileNoKeys(fileName);
109 case '?':
110 if (optopt == 'f')
111 fprintf (stderr, "Option -%c requires an argument.\n", optopt);
112 else if (isprint (optopt))
113 fprintf (stderr, "Unknown option `-%c'.\n", optopt);
114 else
115 fprintf (stderr,
116 "Unknown option character `\\x%x'.\n",
117 optopt);
118 return 1;
119 //default:
120 //showHelp();
121 }
122 showHelp();
123 return 0;
124 }
125
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