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1 | /***************************************************************************** |
2 | * This file is part of iClassCipher. It is a reconstructon of the cipher engine | |
3 | * used in iClass, and RFID techology. | |
4 | * | |
5 | * The implementation is based on the work performed by | |
6 | * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and | |
7 | * Milosch Meriac in the paper "Dismantling IClass". | |
8 | * | |
9 | * Copyright (C) 2014 Martin Holst Swende | |
10 | * | |
11 | * This is free software: you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as published | |
13 | * by the Free Software Foundation. | |
14 | * | |
15 | * This file is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with IClassCipher. If not, see <http://www.gnu.org/licenses/>. | |
22 | ****************************************************************************/ | |
23 | ||
24 | #ifndef CIPHERUTILS_H | |
25 | #define CIPHERUTILS_H | |
26 | #include <stdint.h> | |
27 | #include <stdbool.h> | |
28 | #include <stdlib.h> | |
29 | ||
30 | typedef struct { | |
31 | uint8_t * buffer; | |
32 | uint8_t numbits; | |
33 | uint8_t position; | |
34 | } BitstreamIn; | |
35 | ||
36 | typedef struct { | |
37 | uint8_t * buffer; | |
38 | uint8_t numbits; | |
39 | uint8_t position; | |
40 | }BitstreamOut; | |
41 | ||
42 | bool headBit( BitstreamIn *stream); | |
43 | bool tailBit( BitstreamIn *stream); | |
44 | void pushBit( BitstreamOut *stream, bool bit); | |
45 | int bitsLeft( BitstreamIn *stream); | |
3ad48540 | 46 | |
a66fca86 AD |
47 | int testCipherUtils(void); |
48 | int testMAC(); | |
49 | void push6bits( BitstreamOut* stream, uint8_t bits); | |
50 | void EncryptDES(bool key[56], bool outBlk[64], bool inBlk[64], int verbose) ; | |
3ad48540 MHS |
51 | void x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest); |
52 | uint64_t x_bytes_to_num(uint8_t* src, size_t len); | |
a66fca86 AD |
53 | uint8_t reversebytes(uint8_t b); |
54 | void reverse_arraybytes(uint8_t* arr, size_t len); | |
3ad48540 MHS |
55 | void reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len); |
56 | void printarr(char * name, uint8_t* arr, int len); | |
57 | void printvar(char * name, uint8_t* arr, int len); | |
58 | void printarr_human_readable(char * title, uint8_t* arr, int len); | |
a66fca86 | 59 | #endif // CIPHERUTILS_H |