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bd20f8f4 | 1 | //----------------------------------------------------------------------------- |
2 | // This code is licensed to you under the terms of the GNU GPL, version 2 or, | |
3 | // at your option, any later version. See the LICENSE.txt file for the text of | |
4 | // the license. | |
5 | //----------------------------------------------------------------------------- | |
6 | // ISO14443 CRC calculation code. | |
7 | //----------------------------------------------------------------------------- | |
8 | ||
9 | #ifndef __ISO14443CRC_H | |
10 | #define __ISO14443CRC_H | |
7838f4be | 11 | #include "common.h" |
7fe9b0b7 | 12 | |
13 | //----------------------------------------------------------------------------- | |
14 | // Routines to compute the CRCs (two different flavours, just for confusion) | |
15 | // required for ISO 14443, swiped directly from the spec. | |
16 | //----------------------------------------------------------------------------- | |
17 | #define CRC_14443_A 0x6363 /* ITU-V.41 */ | |
18 | #define CRC_14443_B 0xFFFF /* ISO/IEC 13239 (formerly ISO/IEC 3309) */ | |
b1013281 | 19 | #define CRC_ICLASS 0xE012 /* ICLASS PREFIX */ |
7fe9b0b7 | 20 | |
905c55de | 21 | unsigned short UpdateCrc14443(unsigned char ch, unsigned short *lpwCrc); |
7fe9b0b7 | 22 | void ComputeCrc14443(int CrcType, |
39864b0b | 23 | const unsigned char *Data, int Length, |
7fe9b0b7 | 24 | unsigned char *TransmitFirst, |
25 | unsigned char *TransmitSecond); | |
39864b0b | 26 | int CheckCrc14443(int CrcType, const unsigned char *Data, int Length); |
7fe9b0b7 | 27 | |
28 | #endif |