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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 | |
11 | #include "common.h" | |
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) */ | |
19 | #define CRC_ICLASS 0xE012 /* ICLASS PREFIX */ | |
20 | ||
21 | void ComputeCrc14443(int CrcType, | |
22 | const unsigned char *Data, int Length, | |
23 | unsigned char *TransmitFirst, | |
24 | unsigned char *TransmitSecond); | |
25 | int CheckCrc14443(int CrcType, const unsigned char *Data, int Length); | |
26 | ||
27 | #endif |