github/proxmark3
1
0
Fork 0
mirror of https://github.com/Proxmark/proxmark3.git synced 2025-08-14 02:26:59 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge branch 'iclass-research' of https://github.com/PenturaLabs/proxmark3 into PenturaLabs-iclass-research

Browse source 
Conflicts:
	README.txt
	armsrc/apps.h
	client/Makefile
	client/cmdhficlass.c
	client/cmdhficlass.h
This commit is contained in:
Martin Holst Swende 2014-06-28 20:52:37 +02:00
commit 3ad48540d4
24 changed files with 4222 additions and 84 deletions
Download patch file Download diff file Expand all files Collapse all files

29
common/iso15693tools.c
View file

@ -12,6 +12,9 @@
#include <stdlib.h>
//#include "iso15693tools.h"
#define POLY 0x8408
// The CRC as described in ISO 15693-Part 3-Annex C
// v buffer with data
// n length
@ -63,5 +66,31 @@ char* Iso15693sprintUID(char *target,uint8_t *uid) {
return target;
}
unsigned short iclass_crc16(char *data_p, unsigned short length)
{
unsigned char i;
unsigned int data;
unsigned int crc = 0xffff;
if (length == 0)
return (~crc);
do
{
for (i=0, data=(unsigned int)0xff & *data_p++;
i < 8;
i++, data >>= 1)
{
if ((crc & 0x0001) ^ (data & 0x0001))
crc = (crc >> 1) ^ POLY;
else crc >>= 1;
}
} while (--length);
crc = ~crc;
data = crc;
crc = (crc << 8) | (data >> 8 & 0xff);
crc = crc ^ 0xBC3;
return (crc);
}

1
common/iso15693tools.h
View file

@ -70,6 +70,7 @@
uint16_t Iso15693Crc(uint8_t *v, int n);
int Iso15693AddCrc(uint8_t *req, int n);
char* Iso15693sprintUID(char *target,uint8_t *uid);
unsigned short iclass_crc16(char *data_p, unsigned short length);
//-----------------------------------------------------------------------------
// Map a sequence of octets (~layer 2 command) into the set of bits to feed