[proxmark3-svn] / client / loclass / cipherutils.h

/*****************************************************************************
 * WARNING
 *
 * THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY. 
 * 
 * USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL 
 * PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL, 
 * AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES. 
 * 
 * THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS. 
 *
 *****************************************************************************
 *
 * This file is part of loclass. It is a reconstructon of the cipher engine
 * used in iClass, and RFID techology.
 *
 * The implementation is based on the work performed by
 * Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
 * Milosch Meriac in the paper "Dismantling IClass".
 *
 * Copyright (C) 2014 Martin Holst Swende
 *
 * This is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * This file is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with IClassCipher.  If not, see <http://www.gnu.org/licenses/>.
 ****************************************************************************/

#ifndef CIPHERUTILS_H
#define CIPHERUTILS_H
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>

typedef struct {
	uint8_t * buffer;
	uint8_t numbits;
	uint8_t position;
} BitstreamIn;

typedef struct {
	uint8_t * buffer;
	uint8_t numbits;
	uint8_t position;
}BitstreamOut;

bool headBit( BitstreamIn *stream);
bool tailBit( BitstreamIn *stream);
void pushBit( BitstreamOut *stream, bool bit);
int bitsLeft( BitstreamIn *stream);

int testCipherUtils(void);
int testMAC();
void push6bits( BitstreamOut* stream, uint8_t bits);
void EncryptDES(bool key[56], bool outBlk[64], bool inBlk[64], int verbose) ;
void x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
uint64_t x_bytes_to_num(uint8_t* src, size_t len);
uint8_t reversebytes(uint8_t b);
void reverse_arraybytes(uint8_t* arr, size_t len);
void reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len);
void printarr(char * name, uint8_t* arr, int len);
void printvar(char * name, uint8_t* arr, int len);
void printarr_human_readable(char * title, uint8_t* arr, int len);
#endif // CIPHERUTILS_H
Commit	Line	Data
f38a1528	1	/*****************************************************************************
2ae8a312	2	* WARNING
	3	*
	4	* THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY.
	5	*
	6	* USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL
	7	* PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL,
	8	* AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES.
	9	*
	10	* THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS.
	11	*
	12	*****************************************************************************
	13	*
	14	* This file is part of loclass. It is a reconstructon of the cipher engine
f38a1528	15	* used in iClass, and RFID techology.
	16	*
	17	* The implementation is based on the work performed by
	18	* Flavio D. Garcia, Gerhard de Koning Gans, Roel Verdult and
	19	* Milosch Meriac in the paper "Dismantling IClass".
	20	*
	21	* Copyright (C) 2014 Martin Holst Swende
	22	*
	23	* This is free software: you can redistribute it and/or modify
	24	* it under the terms of the GNU General Public License version 2 as published
	25	* by the Free Software Foundation.
	26	*
	27	* This file is distributed in the hope that it will be useful,
	28	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	29	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	30	* GNU General Public License for more details.
	31	*
	32	* You should have received a copy of the GNU General Public License
d3a22c7d	33	* along with IClassCipher. If not, see <http://www.gnu.org/licenses/>.
f38a1528	34	****************************************************************************/
	35
	36	#ifndef CIPHERUTILS_H
	37	#define CIPHERUTILS_H
	38	#include <stdint.h>
	39	#include <stdbool.h>
	40	#include <stdlib.h>
	41
	42	typedef struct {
	43	uint8_t * buffer;
	44	uint8_t numbits;
	45	uint8_t position;
	46	} BitstreamIn;
	47
	48	typedef struct {
	49	uint8_t * buffer;
	50	uint8_t numbits;
	51	uint8_t position;
	52	}BitstreamOut;
	53
	54	bool headBit( BitstreamIn *stream);
	55	bool tailBit( BitstreamIn *stream);
	56	void pushBit( BitstreamOut *stream, bool bit);
	57	int bitsLeft( BitstreamIn *stream);
	58
	59	int testCipherUtils(void);
	60	int testMAC();
	61	void push6bits( BitstreamOut* stream, uint8_t bits);
	62	void EncryptDES(bool key[56], bool outBlk[64], bool inBlk[64], int verbose) ;
	63	void x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
	64	uint64_t x_bytes_to_num(uint8_t* src, size_t len);
	65	uint8_t reversebytes(uint8_t b);
	66	void reverse_arraybytes(uint8_t* arr, size_t len);
	67	void reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len);
	68	void printarr(char * name, uint8_t* arr, int len);
	69	void printvar(char * name, uint8_t* arr, int len);
	70	void printarr_human_readable(char * title, uint8_t* arr, int len);
	71	#endif // CIPHERUTILS_H