[proxmark3-svn] / armsrc / 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 loclass.  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);
#ifndef ON_DEVICE
int testCipherUtils(void);
int testMAC();
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
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);
#endif // CIPHERUTILS_H
Commit	Line	Data
b67f7ec3 MHS	1	/*****************************************************************************
	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
	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
	33	* along with loclass. If not, see <http://www.gnu.org/licenses/>.
	34	*
	35	*
	36	*
	37	****************************************************************************/
	38
	39
	40	#ifndef CIPHERUTILS_H
	41	#define CIPHERUTILS_H
	42	#include <stdint.h>
	43	#include <stdbool.h>
	44	#include <stdlib.h>
	45
	46	typedef struct {
	47	uint8_t * buffer;
	48	uint8_t numbits;
	49	uint8_t position;
	50	} BitstreamIn;
	51
	52	typedef struct {
	53	uint8_t * buffer;
	54	uint8_t numbits;
	55	uint8_t position;
	56	}BitstreamOut;
	57
	58	bool headBit( BitstreamIn *stream);
	59	bool tailBit( BitstreamIn *stream);
	60	void pushBit( BitstreamOut *stream, bool bit);
	61	int bitsLeft( BitstreamIn *stream);
	62	#ifndef ON_DEVICE
	63	int testCipherUtils(void);
	64	int testMAC();
65	void printarr(char * name, uint8_t* arr, int len);
66	void printvar(char * name, uint8_t* arr, int len);
67	void printarr_human_readable(char * title, uint8_t* arr, int len);
68	#endif
69	void push6bits( BitstreamOut* stream, uint8_t bits);
70	void EncryptDES(bool key[56], bool outBlk[64], bool inBlk[64], int verbose) ;
71	void x_num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
72	uint64_t x_bytes_to_num(uint8_t* src, size_t len);
73	uint8_t reversebytes(uint8_t b);
74	void reverse_arraybytes(uint8_t* arr, size_t len);
75	void reverse_arraycopy(uint8_t* arr, uint8_t* dest, size_t len);
76	#endif // CIPHERUTILS_H