proxmark3/tools/mf_nonce_brute/iso14443crc.h

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//-----------------------------------------------------------------------------
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// ISO14443 CRC calculation code.
//-----------------------------------------------------------------------------
#ifndef __ISO14443CRC_H
#define __ISO14443CRC_H
//-----------------------------------------------------------------------------
// Routines to compute the CRCs (two different flavours, just for confusion)
// required for ISO 14443, swiped directly from the spec.
//-----------------------------------------------------------------------------
#define CRC_14443_A 0x6363 /* ITU-V.41 */
#define CRC_14443_B 0xFFFF /* ISO/IEC 13239 (formerly ISO/IEC 3309) */
#define CRC_ICLASS 0xE012 /* ICLASS PREFIX */
void ComputeCrc14443(int CrcType,
const unsigned char *Data, int Length,
unsigned char *TransmitFirst,
unsigned char *TransmitSecond);
int CheckCrc14443(int CrcType, const unsigned char *Data, int Length);
#endif