Improve 'Magic' Mifare tags generation detection & hf mf c* commands magic 4k compatibility (#349)

* Improve 'Magic' Mifare tags detection

* Magic Mifare tags detection and version printing

* Magic s50/1k tag halt error correction for cload and csave

* hf mf c* commands for gen1b

* Use |= for bitwise operation

* gen1b: don't issue wipe command and don't expect response from WUPC1 magic command after a SELECT_UID: old UID display works in hf mf csetuid

* hf mf cgetsc compatibility for 4k

* hf mf csave compatibility for 4k

* hf mf cload compatibility for 4k, suppress halt errors messages for debug level 2

* Revert to MF_DBG_ERROR level in mifare_classic_halt() and don't issue the halt command for gen1b

* Improve 'Magic' Mifare tags generation detection & hf mf c* commands magic 4k compatibility
This commit is contained in:
Fl0-0 2017-07-12 15:58:32 +02:00 committed by pwpiwi
parent 0e2ddb4196
commit 7906cb41ff
6 changed files with 644 additions and 479 deletions

View file

@ -6,10 +6,13 @@ This project uses the changelog in accordance with [keepchangelog](http://keepac
## [unreleased][unreleased]
### Changed
- Improved backdoor detection missbehaving magic s50/1k tag (Fl0-0)
### Fixed
### Added
- Added hf mf c* commands compatibity for 4k and gen1b backdoor (Fl0-0)
- Added backdoor detection for gen1b magic s70/4k tag (Fl0-0)
- Added data fsktonrz, a fsk cleaning/demodulating routine for weak fsk signal. Note: follow this up with a `data rawdemod nr` to finish demoding your signal.
- Added lf em 410xbrute, LF EM410x reader bruteforce attack by simulating UIDs from a file (Fl0-0)

View file

@ -21,8 +21,8 @@
#include "crc.h"
#define AUTHENTICATION_TIMEOUT 848 // card times out 1ms after wrong authentication (according to NXP documentation)
#define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication
#define PRE_AUTHENTICATION_LEADTIME 400 // some (non standard) cards need a pause after select before they are ready for first authentication
// the block number for the ISO14443-4 PCB
static uint8_t pcb_blocknum = 0;
@ -30,7 +30,7 @@ static uint8_t pcb_blocknum = 0;
static uint8_t deselect_cmd[] = {0xc2,0xe0,0xb4};
//-----------------------------------------------------------------------------
// Select, Authenticate, Read a MIFARE tag.
// Select, Authenticate, Read a MIFARE tag.
// read block
//-----------------------------------------------------------------------------
void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
@ -40,7 +40,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
byte_t isOK = 0;
byte_t dataoutbuf[16];
@ -68,7 +68,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
break;
};
if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Read block error");
break;
@ -78,14 +78,14 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
LED_B_ON();
@ -111,7 +111,7 @@ void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
OnError(0);
return;
};
if(!mifare_ultra_auth(keybytes)){
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
OnError(1);
@ -168,7 +168,7 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
OnError(1);
return;
}
}
}
if( mifare_ultra_readblock(blockNo, dataout) ) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
@ -188,7 +188,7 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
}
//-----------------------------------------------------------------------------
// Select, Authenticate, Read a MIFARE tag.
// Select, Authenticate, Read a MIFARE tag.
// read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
//-----------------------------------------------------------------------------
void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
@ -198,7 +198,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
uint8_t keyType = arg1;
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
byte_t isOK = 0;
byte_t dataoutbuf[16 * 16];
@ -222,12 +222,12 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
}
if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
isOK = 0;
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
}
for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
if(mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf + 16 * blockNo)) {
isOK = 0;
@ -235,14 +235,14 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
break;
}
}
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
LED_B_ON();
@ -307,7 +307,7 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
if (!mifare_ul_ev1_auth(pwd, pack)){
OnError(1);
return;
return;
}
}
@ -316,7 +316,7 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
Dbprintf("Data exceeds buffer!!");
break;
}
len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
if (len) {
@ -352,7 +352,7 @@ void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
}
//-----------------------------------------------------------------------------
// Select, Authenticate, Write a MIFARE tag.
// Select, Authenticate, Write a MIFARE tag.
// read block
//-----------------------------------------------------------------------------
void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
@ -365,7 +365,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
ui64Key = bytes_to_num(datain, 6);
memcpy(blockdata, datain + 10, 16);
// variables
byte_t isOK = 0;
uint8_t uid[10];
@ -392,7 +392,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
break;
};
if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
break;
@ -402,14 +402,14 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
isOK = 1;
break;
}
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
LED_B_ON();
@ -422,7 +422,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
LEDsoff();
}
/* // Command not needed but left for future testing
/* // Command not needed but left for future testing
void MifareUWriteBlockCompat(uint8_t arg0, uint8_t *datain)
{
uint8_t blockNo = arg0;
@ -476,7 +476,7 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
byte_t blockdata[4] = {0x00};
memcpy(blockdata, datain,4);
LEDsoff();
LED_A_ON();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
@ -499,7 +499,7 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
return;
}
}
// UL-EV1 / NTAG authentication
if (usePwd) {
uint8_t pwd[4] = {0x00};
@ -531,12 +531,12 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
}
void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
uint8_t pwd[16] = {0x00};
byte_t blockdata[4] = {0x00};
memcpy(pwd, datain, 16);
LED_A_ON(); LED_B_OFF(); LED_C_OFF();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
@ -586,7 +586,7 @@ void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
OnError(47);
return;
};
};
if(mifare_ultra_halt()) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
@ -610,7 +610,7 @@ int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_t *parity) {
//-----------------------------------------------------------------------------
// acquire encrypted nonces in order to perform the attack described in
// Carlo Meijer, Roel Verdult, "Ciphertext-only Cryptanalysis on Hardened
// Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on
// Mifare Classic Cards" in Proceedings of the 22nd ACM SIGSAC Conference on
// Computer and Communications Security, 2015
//-----------------------------------------------------------------------------
void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags, uint8_t *datain)
@ -628,7 +628,7 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
uint8_t nt_par_enc = 0;
uint8_t buf[USB_CMD_DATA_SIZE];
uint32_t timeout;
uint8_t blockNo = arg0 & 0xff;
uint8_t keyType = (arg0 >> 8) & 0xff;
uint8_t targetBlockNo = arg1 & 0xff;
@ -637,7 +637,7 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
bool initialize = flags & 0x0001;
bool slow = flags & 0x0002;
bool field_off = flags & 0x0004;
LED_A_ON();
LED_C_OFF();
@ -646,9 +646,9 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
clear_trace();
set_tracing(true);
}
LED_C_ON();
uint16_t num_nonces = 0;
bool have_uid = false;
for (uint16_t i = 0; i <= USB_CMD_DATA_SIZE - 9; ) {
@ -661,7 +661,7 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
}
if (!have_uid) { // need a full select cycle to get the uid first
iso14a_card_select_t card_info;
iso14a_card_select_t card_info;
if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {
if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (ALL)");
continue;
@ -672,14 +672,14 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
case 10: cascade_levels = 3; break;
default: break;
}
have_uid = true;
have_uid = true;
} else { // no need for anticollision. We can directly select the card
if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {
if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Can't select card (UID)");
continue;
}
}
if (slow) {
timeout = GetCountSspClk() + PRE_AUTHENTICATION_LEADTIME;
while(GetCountSspClk() < timeout);
@ -697,12 +697,12 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
if (MF_DBGLEVEL >= 1) Dbprintf("AcquireNonces: Auth2 error len=%d", len);
continue;
}
// send a dummy byte as reader response in order to trigger the cards authentication timeout
uint8_t dummy_answer = 0;
ReaderTransmit(&dummy_answer, 1, NULL);
timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;
num_nonces++;
if (num_nonces % 2) {
memcpy(buf+i, receivedAnswer, 4);
@ -716,13 +716,13 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
// wait for the card to become ready again
while(GetCountSspClk() < timeout);
}
LED_C_OFF();
crypto1_destroy(pcs);
LED_B_ON();
cmd_send(CMD_ACK, isOK, cuid, num_nonces, buf, sizeof(buf));
LED_B_OFF();
@ -737,8 +737,8 @@ void MifareAcquireEncryptedNonces(uint32_t arg0, uint32_t arg1, uint32_t flags,
//-----------------------------------------------------------------------------
// MIFARE nested authentication.
//
// MIFARE nested authentication.
//
//-----------------------------------------------------------------------------
void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *datain)
{
@ -750,7 +750,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
uint64_t ui64Key = 0;
ui64Key = bytes_to_num(datain, 6);
// variables
uint16_t rtr, i, j, len;
uint16_t davg;
@ -759,7 +759,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
uint8_t par[1];
uint32_t target_nt[2], target_ks[2];
uint8_t par_array[4];
uint16_t ncount = 0;
struct Crypto1State mpcs = {0, 0};
@ -779,7 +779,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
if (calibrate) clear_trace();
set_tracing(true);
// statistics on nonce distance
int16_t isOK = 0;
#define NESTED_MAX_TRIES 12
@ -791,7 +791,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
davg = dmax = 0;
dmin = 2000;
delta_time = 0;
for (rtr = 0; rtr < 17; rtr++) {
// Test if the action was cancelled
@ -856,17 +856,17 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
}
davg = (davg + (rtr - 1)/2) / (rtr - 1);
if (MF_DBGLEVEL >= 3) Dbprintf("rtr=%d isOK=%d min=%d max=%d avg=%d, delta_time=%d", rtr, isOK, dmin, dmax, davg, delta_time);
dmin = davg - 2;
dmax = davg + 2;
LED_B_OFF();
}
// -------------------------------------------------------------------------------------------------
// -------------------------------------------------------------------------------------------------
LED_C_ON();
// get crypted nonces for target sector
@ -874,7 +874,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
target_nt[i] = 0;
while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
// prepare next select. No need to power down the card.
if(mifare_classic_halt(pcs, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Halt error");
@ -885,7 +885,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Can't select card");
continue;
};
auth1_time = 0;
if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1, &auth1_time)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth1 error");
@ -899,15 +899,15 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
if (MF_DBGLEVEL >= 1) Dbprintf("Nested: Auth2 error len=%d", len);
continue;
};
nt2 = bytes_to_num(receivedAnswer, 4);
nt2 = bytes_to_num(receivedAnswer, 4);
if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
// Parity validity check
for (j = 0; j < 4; j++) {
par_array[j] = (oddparity8(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
}
ncount = 0;
nttest = prng_successor(nt1, dmin - 1);
for (j = dmin; j < dmax + 1; j++) {
@ -936,17 +936,17 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
}
LED_C_OFF();
// ----------------------------- crypto1 destroy
crypto1_destroy(pcs);
byte_t buf[4 + 4 * 4];
memcpy(buf, &cuid, 4);
memcpy(buf+4, &target_nt[0], 4);
memcpy(buf+8, &target_ks[0], 4);
memcpy(buf+12, &target_nt[1], 4);
memcpy(buf+16, &target_ks[1], 4);
LED_B_ON();
cmd_send(CMD_ACK, isOK, 0, targetBlockNo + (targetKeyType * 0x100), buf, sizeof(buf));
LED_B_OFF();
@ -958,8 +958,8 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
}
//-----------------------------------------------------------------------------
// MIFARE check keys. key count up to 85.
//
// MIFARE check keys. key count up to 85.
//
//-----------------------------------------------------------------------------
void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
@ -968,7 +968,7 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
bool clearTrace = arg1;
uint8_t keyCount = arg2;
uint64_t ui64Key = 0;
bool have_uid = false;
uint8_t cascade_levels = 0;
uint32_t timeout = 0;
@ -979,11 +979,11 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
// clear debug level
int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
MF_DBGLEVEL = MF_DBG_NONE;
LED_A_ON();
LED_B_OFF();
LED_C_OFF();
@ -999,7 +999,7 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
// Iceman: use piwi's faster nonce collecting part in hardnested.
if (!have_uid) { // need a full select cycle to get the uid first
iso14a_card_select_t card_info;
iso14a_card_select_t card_info;
if(!iso14443a_select_card(uid, &card_info, &cuid, true, 0)) {
if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card");
--i; // try same key once again
@ -1011,7 +1011,7 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
case 10: cascade_levels = 3; break;
default: break;
}
have_uid = true;
have_uid = true;
} else { // no need for anticollision. We can directly select the card
if(!iso14443a_select_card(uid, NULL, NULL, false, cascade_levels)) {
if (OLD_MF_DBGLEVEL >= 1) Dbprintf("ChkKeys: Can't select card (UID)");
@ -1025,16 +1025,16 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
uint8_t dummy_answer = 0;
ReaderTransmit(&dummy_answer, 1, NULL);
timeout = GetCountSspClk() + AUTHENTICATION_TIMEOUT;
// wait for the card to become ready again
while(GetCountSspClk() < timeout);
continue;
}
isOK = 1;
break;
}
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
LED_B_OFF();
@ -1043,12 +1043,12 @@ void MifareChkKeys(uint16_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
LEDsoff();
// restore debug level
MF_DBGLEVEL = OLD_MF_DBGLEVEL;
MF_DBGLEVEL = OLD_MF_DBGLEVEL;
}
//-----------------------------------------------------------------------------
// MIFARE commands set debug level
//
//
//-----------------------------------------------------------------------------
void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
MF_DBGLEVEL = arg0;
@ -1057,7 +1057,7 @@ void MifareSetDbgLvl(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
//-----------------------------------------------------------------------------
// Work with emulator memory
//
//
// Note: we call FpgaDownloadAndGo(FPGA_BITSTREAM_HF) here although FPGA is not
// involved in dealing with emulator memory. But if it is called later, it might
// destroy the Emulator Memory.
@ -1085,7 +1085,7 @@ void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
//-----------------------------------------------------------------------------
// Load a card into the emulator memory
//
//
//-----------------------------------------------------------------------------
void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
uint8_t numSectors = arg0;
@ -1105,17 +1105,17 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
LED_B_OFF();
LED_C_OFF();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
clear_trace();
set_tracing(false);
bool isOK = true;
if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {
isOK = false;
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
}
for (uint8_t sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {
ui64Key = emlGetKey(sectorNo, keyType);
if (sectorNo == 0){
@ -1131,7 +1131,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
break;
}
}
for (uint8_t blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {
if(isOK && mifare_classic_readblock(pcs, cuid, FirstBlockOfSector(sectorNo) + blockNo, dataoutbuf)) {
isOK = false;
@ -1160,7 +1160,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
if (MF_DBGLEVEL >= 2) DbpString("EMUL FILL SECTORS FINISHED");
}
@ -1168,10 +1168,10 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
//-----------------------------------------------------------------------------
// Work with "magic Chinese" card (email him: ouyangweidaxian@live.cn)
//
//
//-----------------------------------------------------------------------------
void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
// params
uint8_t needWipe = arg0;
// bit 0 - need get UID
@ -1179,20 +1179,21 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
// bit 2 - need HALT after sequence
// bit 3 - need init FPGA and field before sequence
// bit 4 - need reset FPGA and LED
// bit 6 - gen1b backdoor type
uint8_t workFlags = arg1;
uint8_t blockNo = arg2;
// card commands
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
uint8_t wipeC[] = { 0x41 };
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
uint8_t wipeC[] = { 0x41 };
// variables
byte_t isOK = 0;
uint8_t uid[10] = {0x00};
uint8_t d_block[18] = {0x00};
uint32_t cuid;
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
@ -1202,7 +1203,7 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
LED_B_OFF();
LED_C_OFF();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
clear_trace();
set_tracing(true);
}
@ -1214,16 +1215,18 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
break;
};
};
if(mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
if(mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL > 2) Dbprintf("Halt error");
// Continue, some magic tags misbehavies and send an answer to it.
// break;
};
};
// reset chip
if (needWipe){
// Wipe command don't work with gen1b
if (needWipe && !(workFlags & 0x40)){
ReaderTransmitBitsPar(wupC1,7,0, NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
@ -1237,51 +1240,61 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
};
if(mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
if (MF_DBGLEVEL > 2) Dbprintf("Halt error");
// Continue, some magic tags misbehavies and send an answer to it.
// break;
};
};
};
// write block
if (workFlags & 0x02) {
ReaderTransmitBitsPar(wupC1,7,0, NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
ReaderTransmit(wupC2, sizeof(wupC2), NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
break;
};
// gen1b magic tag : do no issue wupC2 and don't expect 0x0a response after SELECT_UID (after getting UID from chip in 'hf mf csetuid' command)
if (!(workFlags & 0x40)) {
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
ReaderTransmit(wupC2, sizeof(wupC2), NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
break;
};
}
}
if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("write block send command error");
break;
};
memcpy(d_block, datain, 16);
AppendCrc14443a(d_block, 16);
ReaderTransmit(d_block, sizeof(d_block), NULL);
if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("write block send data error");
break;
};
};
if (workFlags & 0x04) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
// do no issue halt command for gen1b magic tag (#db# halt error. response len: 1)
if (!(workFlags & 0x40)) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL > 2) Dbprintf("Halt error");
// Continue, some magic tags misbehavies and send an answer to it.
// break;
}
}
}
isOK = 1;
break;
}
LED_B_ON();
cmd_send(CMD_ACK,isOK,0,0,uid,4);
LED_B_OFF();
@ -1294,28 +1307,29 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
// params
// params
// bit 1 - need wupC
// bit 2 - need HALT after sequence
// bit 3 - need init FPGA and field before sequence
// bit 4 - need reset FPGA and LED
// bit 5 - need to set datain instead of issuing USB reply (called via ARM for StandAloneMode14a)
// bit 6 - gen1b backdoor type
uint8_t workFlags = arg0;
uint8_t blockNo = arg2;
// card commands
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
// variables
byte_t isOK = 0;
uint8_t data[18] = {0x00};
uint32_t cuid = 0;
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
if (workFlags & 0x08) {
LED_A_ON();
LED_B_OFF();
@ -1332,14 +1346,16 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC1 error");
break;
};
};
// do no issue for gen1b magic tag
if (!(workFlags & 0x40)) {
ReaderTransmit(wupC2, sizeof(wupC2), NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
if (MF_DBGLEVEL >= 1) Dbprintf("wupC2 error");
break;
};
}
}
// read block
if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
@ -1347,18 +1363,22 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
break;
};
memcpy(data, receivedAnswer, 18);
if (workFlags & 0x04) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
break;
};
// do no issue halt command for gen1b magic tag (#db# halt error. response len: 1)
if (!(workFlags & 0x40)) {
if (mifare_classic_halt(NULL, cuid)) {
if (MF_DBGLEVEL > 1) Dbprintf("Halt error");
// Continue, some magic tags misbehavies and send an answer to it.
// break;
}
}
}
isOK = 1;
break;
}
LED_B_ON();
if (workFlags & 0x20) {
if (isOK)
@ -1375,30 +1395,29 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
}
void MifareCIdent(){
// card commands
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
uint8_t wupC1[] = { 0x40 };
uint8_t wupC2[] = { 0x43 };
// variables
byte_t isOK = 1;
byte_t isOK = 0;
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
ReaderTransmitBitsPar(wupC1,7,0, NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
isOK = 0;
if(ReaderReceive(receivedAnswer, receivedAnswerPar) && (receivedAnswer[0] == 0x0a)) {
isOK = 2;
ReaderTransmit(wupC2, sizeof(wupC2), NULL);
if(ReaderReceive(receivedAnswer, receivedAnswerPar) && (receivedAnswer[0] == 0x0a)) {
isOK = 1;
};
};
ReaderTransmit(wupC2, sizeof(wupC2), NULL);
if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
isOK = 0;
};
if (mifare_classic_halt(NULL, 0)) {
isOK = 0;
};
// From iceman1001: removed the if, since some magic tags misbehavies and send an answer to it.
mifare_classic_halt(NULL, 0);
cmd_send(CMD_ACK,isOK,0,0,0,0);
}
@ -1412,7 +1431,7 @@ void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
byte_t dataout[11] = {0x00};
uint8_t uid[10] = {0x00};
uint32_t cuid;
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
clear_trace();
@ -1439,13 +1458,13 @@ void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
uint8_t key[16] = {0x00};
byte_t isOK = 0;
byte_t dataout[12] = {0x00};
memcpy(key, datain, 16);
isOK = mifare_desfire_des_auth2(cuid, key, dataout);
if( isOK) {
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");
OnError(4);
return;
}

View file

@ -411,8 +411,13 @@ int CmdHF14AReader(const char *Cmd)
c.arg[2] = 0;
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
uint8_t isOK = resp.arg[0] & 0xff;
PrintAndLog("Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
uint8_t isGeneration = resp.arg[0] & 0xff;
switch( isGeneration ){
case 1: PrintAndLog("Answers to chinese magic backdoor commands (GEN 1a): YES"); break;
case 2: PrintAndLog("Answers to chinese magic backdoor commands (GEN 1b): YES"); break;
default: PrintAndLog("Answers to chinese magic backdoor commands: NO"); break;
}
// disconnect
c.cmd = CMD_READER_ISO_14443a;

File diff suppressed because it is too large Load diff

View file

@ -11,7 +11,7 @@
#include "mifarehost.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
@ -23,6 +23,8 @@
#include "util.h"
#include "iso14443crc.h"
#include "mifare.h"
// mifare tracer flags used in mfTraceDecode()
#define TRACE_IDLE 0x00
#define TRACE_AUTH1 0x01
@ -52,7 +54,7 @@ static uint32_t intersection(uint64_t *list1, uint64_t *list2)
return 0;
}
uint64_t *p1, *p2, *p3;
p1 = p3 = list1;
p1 = p3 = list1;
p2 = list2;
while ( *p1 != -1 && *p2 != -1 ) {
@ -98,7 +100,7 @@ static uint32_t nonce2key(uint32_t uid, uint32_t nt, uint32_t nr, uint64_t par_i
}
keylist = (uint64_t*)states;
for (i = 0; keylist[i]; i++) {
lfsr_rollback_word(states+i, uid^nt, 0);
crypto1_get_lfsr(states+i, &key_recovered);
@ -128,16 +130,16 @@ int mfDarkside(uint64_t *key)
printf("Press button on the proxmark3 device to abort both proxmark3 and client.\n");
printf("-------------------------------------------------------------------------\n");
while (true) {
clearCommandBuffer();
SendCommand(&c);
//flush queue
while (ukbhit()) {
int c = getchar(); (void) c;
}
// wait cycle
while (true) {
printf(".");
@ -146,7 +148,7 @@ int mfDarkside(uint64_t *key)
return -5;
break;
}
UsbCommand resp;
if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
isOK = resp.arg[0];
@ -160,7 +162,7 @@ int mfDarkside(uint64_t *key)
nr = bytes_to_num(resp.d.asBytes + 24, 4);
break;
}
}
}
if (par_list == 0 && c.arg[0] == true) {
PrintAndLog("Parity is all zero. Most likely this card sends NACK on every failed authentication.");
@ -171,7 +173,7 @@ int mfDarkside(uint64_t *key)
keycount = nonce2key(uid, nt, nr, par_list, ks_list, &keylist);
if (keycount == 0) {
PrintAndLog("Key not found (lfsr_common_prefix list is null). Nt=%08x", nt);
PrintAndLog("Key not found (lfsr_common_prefix list is null). Nt=%08x", nt);
PrintAndLog("This is expected to happen in 25%% of all cases. Trying again with a different reader nonce...");
continue;
}
@ -188,7 +190,7 @@ int mfDarkside(uint64_t *key)
PrintAndLog("Found %u possible keys. Trying to authenticate with each of them ...\n", keycount);
} else {
PrintAndLog("Found a possible key. Trying to authenticate...\n");
}
}
*key = -1;
uint8_t keyBlock[USB_CMD_DATA_SIZE];
@ -205,8 +207,8 @@ int mfDarkside(uint64_t *key)
if (!mfCheckKeys(0, 0, false, size, keyBlock, key)) {
break;
}
}
}
if (*key != -1) {
free(last_keylist);
free(keylist);
@ -217,7 +219,7 @@ int mfDarkside(uint64_t *key)
last_keylist = keylist;
}
}
return 0;
}
@ -244,7 +246,7 @@ int Compare16Bits(const void * a, const void * b) {
else return -1;
}
typedef
typedef
struct {
union {
struct Crypto1State *slhead;
@ -274,11 +276,11 @@ void* nested_worker_thread(void *arg)
statelist->len = p1 - statelist->head.slhead;
statelist->tail.sltail = --p1;
qsort(statelist->head.slhead, statelist->len, sizeof(uint64_t), Compare16Bits);
return statelist->head.slhead;
}
int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo, uint8_t trgKeyType, uint8_t *resultKey, bool calibrate)
int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo, uint8_t trgKeyType, uint8_t *resultKey, bool calibrate)
{
uint16_t i;
uint32_t uid;
@ -286,10 +288,10 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo,
StateList_t statelists[2];
struct Crypto1State *p1, *p2, *p3, *p4;
// flush queue
WaitForResponseTimeout(CMD_ACK, NULL, 100);
UsbCommand c = {CMD_MIFARE_NESTED, {blockNo + keyType * 0x100, trgBlockNo + trgKeyType * 0x100, calibrate}};
memcpy(c.d.asBytes, key, 6);
SendCommand(&c);
@ -301,10 +303,10 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo,
if (resp.arg[0]) {
return resp.arg[0]; // error during nested
}
memcpy(&uid, resp.d.asBytes, 4);
PrintAndLog("uid:%08x trgbl=%d trgkey=%x", uid, (uint16_t)resp.arg[2] & 0xff, (uint16_t)resp.arg[2] >> 8);
for (i = 0; i < 2; i++) {
statelists[i].blockNo = resp.arg[2] & 0xff;
statelists[i].keyType = (resp.arg[2] >> 8) & 0xff;
@ -312,16 +314,16 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo,
memcpy(&statelists[i].nt, (void *)(resp.d.asBytes + 4 + i * 8 + 0), 4);
memcpy(&statelists[i].ks1, (void *)(resp.d.asBytes + 4 + i * 8 + 4), 4);
}
// calc keys
pthread_t thread_id[2];
// create and run worker threads
for (i = 0; i < 2; i++) {
pthread_create(thread_id + i, NULL, nested_worker_thread, &statelists[i]);
}
// wait for threads to terminate:
for (i = 0; i < 2; i++) {
pthread_join(thread_id[i], (void*)&statelists[i].head.slhead);
@ -331,7 +333,7 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo,
// the first 16 Bits of the cryptostate already contain part of our key.
// Create the intersection of the two lists based on these 16 Bits and
// roll back the cryptostate
p1 = p3 = statelists[0].head.slhead;
p1 = p3 = statelists[0].head.slhead;
p2 = p4 = statelists[1].head.slhead;
while (p1 <= statelists[0].tail.sltail && p2 <= statelists[1].tail.sltail) {
if (Compare16Bits(p1, p2) == 0) {
@ -382,10 +384,10 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t *key, uint8_t trgBlockNo,
break;
}
}
free(statelists[0].head.slhead);
free(statelists[1].head.slhead);
return 0;
}
@ -403,7 +405,7 @@ int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) {
int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
UsbCommand c = {CMD_MIFARE_EML_MEMSET, {blockNum, blocksCount, 0}};
memcpy(c.d.asBytes, data, blocksCount * 16);
memcpy(c.d.asBytes, data, blocksCount * 16);
SendCommand(&c);
return 0;
}
@ -432,15 +434,15 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
uint8_t isOK = 0;
UsbCommand c = {CMD_MIFARE_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};
memcpy(c.d.asBytes, data, 16);
memcpy(c.d.asBytes, data, 16);
SendCommand(&c);
UsbCommand resp;
if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
isOK = resp.arg[0] & 0xff;
if (uid != NULL)
if (uid != NULL)
memcpy(uid, resp.d.asBytes, 4);
if (!isOK)
if (!isOK)
return 2;
} else {
PrintAndLog("Command execute timeout");
@ -452,8 +454,18 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe) {
uint8_t oldblock0[16] = {0x00};
uint8_t block0[16] = {0x00};
int old, gen = 0;
gen = mfCIdentify();
if (gen == 2) {
/* generation 1b magic card */
old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER | CSETBLOCK_MAGIC_1B);
} else {
/* generation 1a magic card by default */
old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER);
}
int old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER);
if (old == 0) {
memcpy(block0, oldblock0, 16);
PrintAndLog("old block 0: %s", sprint_hex(block0,16));
@ -463,7 +475,7 @@ int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool w
// fill in the new values
// UID
memcpy(block0, uid, 4);
memcpy(block0, uid, 4);
// Mifare UID BCC
block0[4] = block0[0]^block0[1]^block0[2]^block0[3];
// mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed)
@ -474,7 +486,14 @@ int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool w
block0[7]=atqa[0];
}
PrintAndLog("new block 0: %s", sprint_hex(block0,16));
return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);
if (gen == 2) {
/* generation 1b magic card */
return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER | CSETBLOCK_MAGIC_1B);
} else {
/* generation 1a magic card by default */
return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);
}
}
// SNIFFER
@ -508,7 +527,7 @@ int isTraceCardEmpty(void) {
}
int isBlockEmpty(int blockN) {
for (int i = 0; i < 16; i++)
for (int i = 0; i < 16; i++)
if (traceCard[blockN * 16 + i] != 0) return 0;
return 1;
@ -520,15 +539,15 @@ int isBlockTrailer(int blockN) {
int saveTraceCard(void) {
FILE * f;
if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;
f = fopen(traceFileName, "w+");
if ( !f ) return 1;
for (int i = 0; i < 64; i++) { // blocks
for (int j = 0; j < 16; j++) // bytes
fprintf(f, "%02x", *(traceCard + i * 16 + j));
fprintf(f, "%02x", *(traceCard + i * 16 + j));
fprintf(f,"\n");
}
fclose(f);
@ -540,10 +559,10 @@ int loadTraceCard(uint8_t *tuid) {
char buf[64] = {0x00};
uint8_t buf8[64] = {0x00};
int i, blockNum;
if (!isTraceCardEmpty())
if (!isTraceCardEmpty())
saveTraceCard();
memset(traceCard, 0x00, 4096);
memcpy(traceCard, tuid + 3, 4);
@ -551,11 +570,11 @@ int loadTraceCard(uint8_t *tuid) {
f = fopen(traceFileName, "r");
if (!f) return 1;
blockNum = 0;
while(!feof(f)){
memset(buf, 0, sizeof(buf));
if (fgets(buf, sizeof(buf), f) == NULL) {
PrintAndLog("File reading error.");
@ -583,20 +602,20 @@ int loadTraceCard(uint8_t *tuid) {
int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {
if (traceCrypto1)
if (traceCrypto1)
crypto1_destroy(traceCrypto1);
traceCrypto1 = NULL;
if (wantSaveToEmlFile)
if (wantSaveToEmlFile)
loadTraceCard(tuid);
traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];
traceCard[5] = sak;
memcpy(&traceCard[6], atqa, 2);
traceCurBlock = 0;
uid = bytes_to_num(tuid + 3, 4);
traceState = TRACE_IDLE;
return 0;
@ -605,7 +624,7 @@ int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFil
void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len, bool isEncrypted){
uint8_t bt = 0;
int i;
if (len != 1) {
for (i = 0; i < len; i++)
data[i] = crypto1_byte(pcs, 0x00, isEncrypted) ^ data[i];
@ -613,7 +632,7 @@ void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len, bool i
bt = 0;
for (i = 0; i < 4; i++)
bt |= (crypto1_bit(pcs, 0, isEncrypted) ^ BIT(data[0], i)) << i;
data[0] = bt;
}
return;
@ -628,24 +647,24 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
traceState = TRACE_ERROR;
return 1;
}
memcpy(data, data_src, len);
if ((traceCrypto1) && ((traceState == TRACE_IDLE) || (traceState > TRACE_AUTH_OK))) {
mf_crypto1_decrypt(traceCrypto1, data, len, 0);
PrintAndLog("dec> %s", sprint_hex(data, len));
AddLogHex(logHexFileName, "dec> ", data, len);
AddLogHex(logHexFileName, "dec> ", data, len);
}
switch (traceState) {
case TRACE_IDLE:
case TRACE_IDLE:
// check packet crc16!
if ((len >= 4) && (!CheckCrc14443(CRC_14443_A, data, len))) {
PrintAndLog("dec> CRC ERROR!!!");
AddLogLine(logHexFileName, "dec> ", "CRC ERROR!!!");
AddLogLine(logHexFileName, "dec> ", "CRC ERROR!!!");
traceState = TRACE_ERROR; // do not decrypt the next commands
return 1;
}
// AUTHENTICATION
if ((len ==4) && ((data[0] == 0x60) || (data[0] == 0x61))) {
traceState = TRACE_AUTH1;
@ -673,11 +692,11 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
traceState = TRACE_ERROR; // do not decrypt the next commands
return 0;
}
return 0;
break;
case TRACE_READ_DATA:
case TRACE_READ_DATA:
if (len == 18) {
traceState = TRACE_IDLE;
@ -694,7 +713,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
case TRACE_WRITE_OK:
case TRACE_WRITE_OK:
if ((len == 1) && (data[0] == 0x0a)) {
traceState = TRACE_WRITE_DATA;
@ -705,7 +724,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
case TRACE_WRITE_DATA:
case TRACE_WRITE_DATA:
if (len == 18) {
traceState = TRACE_IDLE;
@ -718,7 +737,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
case TRACE_AUTH1:
case TRACE_AUTH1:
if (len == 4) {
traceState = TRACE_AUTH2;
nt = bytes_to_num(data, 4);
@ -729,7 +748,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
case TRACE_AUTH2:
case TRACE_AUTH2:
if (len == 8) {
traceState = TRACE_AUTH_OK;
@ -742,12 +761,12 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
case TRACE_AUTH_OK:
case TRACE_AUTH_OK:
if (len ==4) {
traceState = TRACE_IDLE;
at_enc = bytes_to_num(data, 4);
// decode key here)
ks2 = ar_enc ^ prng_successor(nt, 64);
ks3 = at_enc ^ prng_successor(nt, 96);
@ -759,11 +778,11 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
crypto1_get_lfsr(revstate, &lfsr);
printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));
AddLogUint64(logHexFileName, "key> ", lfsr);
AddLogUint64(logHexFileName, "key> ", lfsr);
int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;
if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);
if (traceCurKey) {
num_to_bytes(lfsr, 6, traceCard + blockShift + 10);
} else {
@ -774,10 +793,10 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
if (traceCrypto1) {
crypto1_destroy(traceCrypto1);
}
// set cryptosystem state
traceCrypto1 = lfsr_recovery64(ks2, ks3);
// nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;
/* traceCrypto1 = crypto1_create(lfsr); // key in lfsr
@ -785,7 +804,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
crypto1_word(traceCrypto1, ar, 1);
crypto1_word(traceCrypto1, 0, 0);
crypto1_word(traceCrypto1, 0, 0);*/
return 0;
} else {
traceState = TRACE_ERROR;
@ -793,7 +812,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
}
break;
default:
default:
traceState = TRACE_ERROR;
return 1;
}
@ -820,3 +839,50 @@ int tryDecryptWord(uint32_t nt, uint32_t ar_enc, uint32_t at_enc, uint8_t *data,
crypto1_destroy(traceCrypto1);
return 0;
}
int mfCIdentify()
{
UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
SendCommand(&c);
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
iso14a_card_select_t card;
memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS, 3: proprietary Anticollision
if(select_status != 0) {
uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
c.arg[1] = 2;
c.arg[2] = 0;
memcpy(c.d.asBytes, rats, 2);
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
}
c.cmd = CMD_MIFARE_CIDENT;
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
uint8_t isGeneration = resp.arg[0] & 0xff;
switch( isGeneration ){
case 1: PrintAndLog("Chinese magic backdoor commands (GEN 1a) detected"); break;
case 2: PrintAndLog("Chinese magic backdoor command (GEN 1b) detected"); break;
default: PrintAndLog("No chinese magic backdoor command detected"); break;
}
// disconnect
c.cmd = CMD_READER_ISO_14443a;
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
return (int) isGeneration;
}

View file

@ -16,12 +16,13 @@
#include "data.h"
// mfCSetBlock work flags
#define CSETBLOCK_UID 0x01
#define CSETBLOCK_WUPC 0x02
#define CSETBLOCK_HALT 0x04
#define CSETBLOCK_UID 0x01
#define CSETBLOCK_WUPC 0x02
#define CSETBLOCK_HALT 0x04
#define CSETBLOCK_INIT_FIELD 0x08
#define CSETBLOCK_RESET_FIELD 0x10
#define CSETBLOCK_SINGLE_OPER 0x1F
#define CSETBLOCK_MAGIC_1B 0x40
extern char logHexFileName[FILE_PATH_SIZE];
@ -46,4 +47,6 @@ extern int loadTraceCard(uint8_t *tuid);
extern int saveTraceCard(void);
extern int tryDecryptWord(uint32_t nt, uint32_t ar_enc, uint32_t at_enc, uint8_t *data, int len);
extern int mfCIdentify();
#endif