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Removed deprecated CRC calculation

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Angel
2023-04-15 22:23:06 -04:00
parent f1963cfa82
commit 0a66f809a6
1 changed files with 0 additions and 30 deletions
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30
client/src/cmdlfparadox.c
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@@ -36,13 +36,6 @@
#include "cliparser.h"
static int CmdHelp(const char *Cmd);
static const uint8_t paradox_lut[] = {
0xDB, 0xFC, 0x3F, 0xC5, 0x50, 0x14, 0x05, 0x47,
0x9F, 0xED, 0x7D, 0x59, 0x22, 0x84, 0x21, 0x4E,
0x39, 0x48, 0x12, 0x88, 0x53, 0xDE, 0xBB, 0xE4,
0xB4, 0x2D, 0x4D, 0x55, 0xCA, 0xBE, 0xA3, 0xE2
};
// FC:108, Card01827
// 00000000 01101100 00000111 00100011
// hex(0xED xor 0x7D xor 0x22 xor 0x84 xor 0xDE xor 0xBB xor 0xE4 xor 0x4D xor 0xA3 xor 0xE2 xor 0x47) 0xFC
@@ -135,29 +128,6 @@ int demodParadox(bool verbose) {
uint32_t cardnum = (lo >> 10) & 0xFFFF;
uint8_t chksum = (lo >> 2) & 0xFF;
// Calc CRC & Checksum
// 000088f0b - FC: 8 - Card: 36619 - Checksum: 05 - RAW: 0f55555559595aa559a5566a
// checksum?
uint8_t calc_chksum = 0x47;
uint8_t pos = 0;
for (uint8_t i = 0; i < 8; i++) {
uint8_t ice = rawhex[i + 1];
for (uint8_t j = 0x80; j > 0; j >>= 2) {
if (ice & j) {
calc_chksum ^= paradox_lut[pos];
}
pos++;
}
}
uint32_t crc = CRC8Maxim(rawhex + 1, 8);
PrintAndLogEx(DEBUG, " FSK/MAN raw : %s", sprint_hex(rawhex, sizeof(rawhex)));
PrintAndLogEx(DEBUG, " raw : %s = (maxim crc8) %02x == %02x", sprint_hex(rawhex + 1, 8), crc, calc_chksum);
// PrintAndLogEx(DEBUG, " OTHER sample CRC-8/MAXIM : 55 55 69 A5 55 6A 59 5A = FC");
uint32_t rawLo = bytebits_to_byte(bits + idx + 64, 32);
uint32_t rawHi = bytebits_to_byte(bits + idx + 32, 32);
uint32_t rawHi2 = bytebits_to_byte(bits + idx, 32);