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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 //-----------------------------------------------------------------------------

9 #ifndef __ISO14443CRC_H

10 #define __ISO14443CRC_H

11 #include "common.h"

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 PRERFIX */

 void ComputeCrc14443(int CrcType,

                      const unsigned char *Data, int Length,

23 unsigned char *TransmitFirst,

24 unsigned char *TransmitSecond);

 int CheckCrc14443(int CrcType, const unsigned char *Data, int Length);

27 #endif