RfidResearchGroup/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-03-19 19:38:52 +08:00
Code Issues Projects Releases Packages Wiki Activity

crc for tk17 works

Browse source
This commit is contained in:
merlokk 2022-06-28 12:26:20 +03:00
parent 67fc919c72
commit 4df92e2655
1 changed files with 1 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

42
client/src/cmdhftexkom.c
View file

@ -188,7 +188,6 @@ static unsigned char dallas_crc8(const unsigned char *data, const unsigned int s
inbyte >>= 1;
}
}
PrintAndLogEx(WARNING, "--crc %x", crc);
return crc;
}
@ -196,46 +195,7 @@ static unsigned char dallas_crc8(const unsigned char *data, const unsigned int s
static uint8_t TexcomTK17CRC(uint8_t *data) {
uint8_t ddata[8] = {0x00, 0x00, 0x00, data[0], data[1], data[2], data[3], 0x00};
/*
dallas (arrby) {
var arrby2 = [];
if (arrby.length < 8) {
return "FF";
}
var n = 0;
var n2 = 7;
while (n < 7){
arrby2[n] = arrby[n2];
++n;
--n2;
}
var n3 = 0;
var n4 = 0;
do {
var n5 = 255 & arrby2[n3];
var n6 = n4;
for (var n7 = 0; n7 < 8; n7 = Number(n7 + 1)) {
var n8 = 1 & (255 & (n6 ^ n5));
n6 = 255 & n6 >> 1;
n5 = 255 & n5 >> 1;
if (n8 != 1) continue;
n6 ^= 140;
}
if ((n3 = Number(n3 + 1)) >= 7) {
return n6.toString(16).toUpperCase();
}
n4 = n6;
} while (true);
}
tk17(arrby) {
if(arrby.length < 8) {
return "FF"
}
return this.dallas( [0x00, arrby[1], arrby[2], arrby[3], arrby[4], 0x00, 0x00, 0x00] )
}
*/
return dallas_crc8(ddata, 8);
return dallas_crc8(ddata, 7);
}
static bool TexcomTK13Decode(uint32_t *implengths, uint32_t implengthslen, char *bitstring, char *cbitstring, bool verbose) {