mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 23:36:31 +08:00
276 lines
8.3 KiB
C
276 lines
8.3 KiB
C
//-----------------------------------------------------------------------------
|
|
//
|
|
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
|
|
// at your option, any later version. See the LICENSE.txt file for the text of
|
|
// the license.
|
|
//-----------------------------------------------------------------------------
|
|
// Low frequency Noralsy tag commands
|
|
// ASK/Manchester, STT, RF/32, 96 bits long (some bits unknown)
|
|
//-----------------------------------------------------------------------------
|
|
#include "cmdlfnoralsy.h"
|
|
|
|
static int CmdHelp(const char *Cmd);
|
|
|
|
int usage_lf_noralsy_clone(void){
|
|
PrintAndLog("clone a Noralsy tag to a T55x7 tag.");
|
|
PrintAndLog("Usage: lf noralsy clone [h] <card id> <year> <Q5>");
|
|
PrintAndLog("Options:");
|
|
PrintAndLog(" h : This help");
|
|
PrintAndLog(" <card id> : Noralsy card ID");
|
|
PrintAndLog(" <year> : Tag allocation year");
|
|
PrintAndLog(" <Q5> : specify write to Q5 (t5555 instead of t55x7)");
|
|
PrintAndLog("");
|
|
PrintAndLog("Sample: lf noralsy clone 112233");
|
|
return 0;
|
|
}
|
|
|
|
int usage_lf_noralsy_sim(void) {
|
|
PrintAndLog("Enables simulation of Noralsy card with specified card number.");
|
|
PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
|
|
PrintAndLog("");
|
|
PrintAndLog("Usage: lf noralsy sim [h] <card id> <year>");
|
|
PrintAndLog("Options:");
|
|
PrintAndLog(" h : This help");
|
|
PrintAndLog(" <card id> : Noralsy card ID");
|
|
PrintAndLog(" <year> : Tag allocation year");
|
|
PrintAndLog("");
|
|
PrintAndLog("Sample: lf noralsy sim 112233");
|
|
return 0;
|
|
}
|
|
|
|
static uint8_t noralsy_chksum( uint8_t* bits, uint8_t len) {
|
|
uint8_t sum = 0;
|
|
for (uint8_t i = 0; i < len; i += 4)
|
|
sum ^= bytebits_to_byte(bits+i, 4);
|
|
return sum & 0x0F ;
|
|
}
|
|
int getnoralsyBits(uint32_t id, uint16_t year, uint8_t *bits) {
|
|
//preamp
|
|
num_to_bytebits(0xBB0214FF, 32, bits); // --> Have seen 0xBB0214FF / 0xBB0314FF UNKNOWN
|
|
|
|
//convert ID into BCD-format
|
|
id = DEC2BCD(id);
|
|
year = DEC2BCD(year);
|
|
year &= 0xFF;
|
|
|
|
uint16_t sub1 = (id & 0xFFF0000) >> 16;
|
|
uint8_t sub2 = (id & 0x000FF00) >> 8;
|
|
uint8_t sub3 = (id & 0x00000FF);
|
|
|
|
num_to_bytebits(sub1, 12, bits+32);
|
|
num_to_bytebits(year, 8, bits+44);
|
|
num_to_bytebits(0, 4, bits+52); // --> UNKNOWN. Flag?
|
|
|
|
num_to_bytebits(sub2, 8, bits+56);
|
|
num_to_bytebits(sub3, 8, bits+64);
|
|
|
|
//chksum byte
|
|
uint8_t chksum = noralsy_chksum(bits+32, 40);
|
|
num_to_bytebits(chksum, 4, bits+72);
|
|
chksum = noralsy_chksum(bits, 76);
|
|
num_to_bytebits(chksum, 4, bits+76);
|
|
return 1;
|
|
}
|
|
|
|
// by iceman
|
|
// find Noralsy preamble in already demoded data
|
|
int detectNoralsy(uint8_t *dest, size_t *size) {
|
|
if (*size < 96) return -1; //make sure buffer has data
|
|
size_t startIdx = 0;
|
|
uint8_t preamble[] = {1,0,1,1,1,0,1,1,0,0,0,0};
|
|
if (!preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx))
|
|
return -2; //preamble not found
|
|
if (*size != 96) return -3; //wrong demoded size
|
|
//return start position
|
|
return (int)startIdx;
|
|
}
|
|
/*
|
|
*
|
|
* 2520116 | BB0214FF2529900116360000 | 10111011 00000011 00010100 11111111 00100101 00101001 10010000 00000001 00010110 00110110 00000000 00000000
|
|
* aaa*aaaaiiiYY*iiiicc---- **** iiiiiiii iiiiYYYY YYYY**** iiiiiiii iiiiiiii cccccccc
|
|
*
|
|
* a = fixed value BB0*14FF
|
|
* i = printed id, BCD-format
|
|
* Y = year
|
|
* c = checksum
|
|
* * = unknown
|
|
*
|
|
**/
|
|
|
|
//see ASKDemod for what args are accepted
|
|
int CmdNoralsyDemod(const char *Cmd) {
|
|
|
|
//ASK / Manchester
|
|
bool st = true;
|
|
if (!ASKDemod_ext("32 0 0", false, false, 1, &st)) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
|
|
return 0;
|
|
}
|
|
if (!st) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: sequence terminator not found");
|
|
return 0;
|
|
}
|
|
|
|
size_t size = DemodBufferLen;
|
|
int ans = detectNoralsy(DemodBuffer, &size);
|
|
if (ans < 0){
|
|
if (g_debugMode){
|
|
if (ans == -1)
|
|
PrintAndLog("DEBUG: Error - Noralsy: too few bits found");
|
|
else if (ans == -2)
|
|
PrintAndLog("DEBUG: Error - Noralsy: preamble not found");
|
|
else if (ans == -3)
|
|
PrintAndLog("DEBUG: Error - Noralsy: Size not correct: %d", size);
|
|
else
|
|
PrintAndLog("DEBUG: Error - Noralsy: ans: %d", ans);
|
|
}
|
|
return 0;
|
|
}
|
|
setDemodBuf(DemodBuffer, 96, ans);
|
|
setClockGrid(g_DemodClock, g_DemodStartIdx + (ans*g_DemodClock));
|
|
|
|
//got a good demod
|
|
uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
|
|
uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
|
|
uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);
|
|
|
|
uint32_t cardid = ((raw2 & 0xFFF00000) >> 20) << 16;
|
|
cardid |= (raw2 & 0xFF) << 8;
|
|
cardid |= ((raw3 & 0xFF000000) >> 24);
|
|
cardid = BCD2DEC(cardid);
|
|
|
|
uint16_t year = (raw2 & 0x000ff000) >> 12;
|
|
year = BCD2DEC(year);
|
|
year += ( year > 60 ) ? 1900: 2000;
|
|
|
|
// calc checksums
|
|
uint8_t calc1 = noralsy_chksum(DemodBuffer+32, 40);
|
|
uint8_t calc2 = noralsy_chksum(DemodBuffer, 76);
|
|
uint8_t chk1 = 0, chk2 = 0;
|
|
chk1 = bytebits_to_byte(DemodBuffer+72, 4);
|
|
chk2 = bytebits_to_byte(DemodBuffer+76, 4);
|
|
// test checksums
|
|
if ( chk1 != calc1 ) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: checksum 1 failed %x - %x\n", chk1, calc1);
|
|
return 0;
|
|
}
|
|
if ( chk2 != calc2 ) {
|
|
if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: checksum 2 failed %x - %x\n", chk2, calc2);
|
|
return 0;
|
|
}
|
|
|
|
PrintAndLog("Noralsy Tag Found: Card ID %u, Year: %u Raw: %08X%08X%08X", cardid, year, raw1 ,raw2, raw3);
|
|
if (raw1 != 0xBB0214FF) {
|
|
PrintAndLog("Unknown bits set in first block! Expected 0xBB0214FF, Found: 0x%08X", raw1);
|
|
PrintAndLog("Please post this output in forum to further research on this format");
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
int CmdNoralsyRead(const char *Cmd) {
|
|
lf_read(true, 8000);
|
|
return CmdNoralsyDemod(Cmd);
|
|
}
|
|
|
|
int CmdNoralsyClone(const char *Cmd) {
|
|
|
|
uint16_t year = 0;
|
|
uint32_t id = 0;
|
|
uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | T55x7_ST_TERMINATOR | 3 << T55x7_MAXBLOCK_SHIFT, 0, 0};
|
|
uint8_t bits[96];
|
|
memset(bits, 0, sizeof(bits));
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_noralsy_clone();
|
|
|
|
id = param_get32ex(Cmd, 0, 0, 10);
|
|
year = param_get32ex(Cmd, 1, 2000, 10);
|
|
|
|
//Q5
|
|
if (param_getchar(Cmd, 2) == 'Q' || param_getchar(Cmd, 2) == 'q')
|
|
blocks[0] = T5555_MODULATION_MANCHESTER | T5555_SET_BITRATE(32) | T5555_ST_TERMINATOR | 3 << T5555_MAXBLOCK_SHIFT;
|
|
|
|
if ( !getnoralsyBits(id, year, bits)) {
|
|
PrintAndLog("Error with tag bitstream generation.");
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
blocks[1] = bytebits_to_byte(bits, 32);
|
|
blocks[2] = bytebits_to_byte(bits + 32, 32);
|
|
blocks[3] = bytebits_to_byte(bits + 64, 32);
|
|
|
|
PrintAndLog("Preparing to clone Noralsy to T55x7 with CardId: %u", id);
|
|
print_blocks(blocks, 4);
|
|
|
|
UsbCommand resp;
|
|
UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
|
|
|
|
for (uint8_t i=0; i<4; i++) {
|
|
c.arg[0] = blocks[i];
|
|
c.arg[1] = i;
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
if (!WaitForResponseTimeout(CMD_ACK, &resp, T55XX_WRITE_TIMEOUT)){
|
|
PrintAndLog("Error occurred, device did not respond during write operation.");
|
|
return -1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int CmdNoralsySim(const char *Cmd) {
|
|
|
|
uint8_t bits[96];
|
|
uint8_t *bs = bits;
|
|
memset(bs, 0, sizeof(bits));
|
|
|
|
uint16_t year = 0;
|
|
uint32_t id = 0;
|
|
|
|
char cmdp = param_getchar(Cmd, 0);
|
|
if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_noralsy_sim();
|
|
|
|
id = param_get32ex(Cmd, 0, 0, 10);
|
|
year = param_get32ex(Cmd, 1, 2000, 10);
|
|
|
|
uint8_t clk = 32, encoding = 1, separator = 1, invert = 0;
|
|
uint16_t arg1, arg2;
|
|
size_t size = 96;
|
|
arg1 = clk << 8 | encoding;
|
|
arg2 = invert << 8 | separator;
|
|
|
|
if ( !getnoralsyBits(id, year, bs)) {
|
|
PrintAndLog("Error with tag bitstream generation.");
|
|
return 1;
|
|
}
|
|
|
|
PrintAndLog("Simulating Noralsy - CardId: %u", id);
|
|
|
|
UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
|
|
memcpy(c.d.asBytes, bs, size);
|
|
clearCommandBuffer();
|
|
SendCommand(&c);
|
|
return 0;
|
|
}
|
|
|
|
static command_t CommandTable[] = {
|
|
{"help", CmdHelp, 1, "This help"},
|
|
{"demod", CmdNoralsyDemod,1, "Demodulate an Noralsy tag from the GraphBuffer"},
|
|
{"read", CmdNoralsyRead, 0, "Attempt to read and extract tag data from the antenna"},
|
|
{"clone", CmdNoralsyClone,0, "clone Noralsy to T55x7"},
|
|
{"sim", CmdNoralsySim, 0, "simulate Noralsy tag"},
|
|
{NULL, NULL, 0, NULL}
|
|
};
|
|
|
|
int CmdLFNoralsy(const char *Cmd) {
|
|
clearCommandBuffer();
|
|
CmdsParse(CommandTable, Cmd);
|
|
return 0;
|
|
}
|
|
|
|
int CmdHelp(const char *Cmd) {
|
|
CmdsHelp(CommandTable);
|
|
return 0;
|
|
}
|