static uint8_t mf_nr_ar3;
uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
- traceLen = 0;
+ iso14a_clear_trace();
tracing = false;
byte_t nt_diff = 0;
LED_B_OFF();
LED_C_OFF();
-
+
for(uint16_t i = 0; TRUE; i++) {
WDT_HIT();
tracing = TRUE;
}
-//-----------------------------------------------------------------------------
-// MIFARE 1K simulate.
-//
-//-----------------------------------------------------------------------------
-void Mifare1ksim(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+/**
+ *MIFARE 1K simulate.
+ *
+ *@param flags :
+ * FLAG_INTERACTIVE - In interactive mode, we are expected to finish the operation with an ACK
+ * 4B_FLAG_UID_IN_DATA - means that there is a 4-byte UID in the data-section, we're expected to use that
+ * 7B_FLAG_UID_IN_DATA - means that there is a 7-byte UID in the data-section, we're expected to use that
+ * FLAG_NR_AR_ATTACK - means we should collect NR_AR responses for bruteforcing later
+ *@param exitAfterNReads, exit simulation after n blocks have been read, 0 is inifite
+ */
+void Mifare1ksim(uint8_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t *datain)
{
int cardSTATE = MFEMUL_NOFIELD;
int _7BUID = 0;
int vHf = 0; // in mV
- //int nextCycleTimeout = 0;
int res;
-// uint32_t timer = 0;
uint32_t selTimer = 0;
uint32_t authTimer = 0;
uint32_t par = 0;
uint8_t cardWRBL = 0;
uint8_t cardAUTHSC = 0;
uint8_t cardAUTHKEY = 0xff; // no authentication
- //uint32_t cardRn = 0;
uint32_t cardRr = 0;
uint32_t cuid = 0;
- uint32_t rn_enc = 0;
+ //uint32_t rn_enc = 0;
uint32_t ans = 0;
uint32_t cardINTREG = 0;
uint8_t cardINTBLOCK = 0;
struct Crypto1State mpcs = {0, 0};
struct Crypto1State *pcs;
pcs = &mpcs;
-
+ uint32_t numReads = 0;//Counts numer of times reader read a block
uint8_t* receivedCmd = eml_get_bigbufptr_recbuf();
uint8_t *response = eml_get_bigbufptr_sendbuf();
- static uint8_t rATQA[] = {0x04, 0x00}; // Mifare classic 1k 4BUID
+ uint8_t rATQA[] = {0x04, 0x00}; // Mifare classic 1k 4BUID
+ uint8_t rUIDBCC1[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
+ uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; // !!!
+ uint8_t rSAK[] = {0x08, 0xb6, 0xdd};
+ uint8_t rSAK1[] = {0x04, 0xda, 0x17};
- static uint8_t rUIDBCC1[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
- static uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; // !!!
-
- static uint8_t rSAK[] = {0x08, 0xb6, 0xdd};
- static uint8_t rSAK1[] = {0x04, 0xda, 0x17};
+ uint8_t rAUTH_NT[] = {0x01, 0x02, 0x03, 0x04};
+ uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
- static uint8_t rAUTH_NT[] = {0x01, 0x02, 0x03, 0x04};
-// static uint8_t rAUTH_NT[] = {0x1a, 0xac, 0xff, 0x4f};
- static uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
+ //Here, we collect UID,NT,AR,NR,UID2,NT2,AR2,NR2
+ // This can be used in a reader-only attack.
+ // (it can also be retrieved via 'hf 14a list', but hey...
+ uint32_t ar_nr_responses[] = {0,0,0,0,0,0,0,0};
+ uint8_t ar_nr_collected = 0;
// clear trace
- traceLen = 0;
+ iso14a_clear_trace();
+
tracing = true;
// Authenticate response - nonce
uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
-
- // get UID from emul memory
- emlGetMemBt(receivedCmd, 7, 1);
- _7BUID = !(receivedCmd[0] == 0x00);
- if (!_7BUID) { // ---------- 4BUID
- rATQA[0] = 0x04;
- emlGetMemBt(rUIDBCC1, 0, 4);
+ //-- Determine the UID
+ // Can be set from emulator memory, incoming data
+ // and can be 7 or 4 bytes long
+ if(flags & FLAG_4B_UID_IN_DATA)
+ {
+ // 4B uid comes from data-portion of packet
+ memcpy(rUIDBCC1,datain,4);
rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
- } else { // ---------- 7BUID
- rATQA[0] = 0x44;
+ }else if(flags & FLAG_7B_UID_IN_DATA)
+ {
+ // 7B uid comes from data-portion of packet
+ memcpy(&rUIDBCC1[1],datain,3);
+ memcpy(rUIDBCC2, datain+3, 4);
+ _7BUID = true;
+ }
+ else
+ {
+ // get UID from emul memory
+ emlGetMemBt(receivedCmd, 7, 1);
+ _7BUID = !(receivedCmd[0] == 0x00);
+ if (!_7BUID) { // ---------- 4BUID
+ emlGetMemBt(rUIDBCC1, 0, 4);
+ } else { // ---------- 7BUID
+ emlGetMemBt(&rUIDBCC1[1], 0, 3);
+ emlGetMemBt(rUIDBCC2, 3, 4);
+ }
+ }
+ /*
+ * Regardless of what method was used to set the UID, set fifth byte and modify
+ * the ATQA for 4 or 7-byte UID
+ */
+
+ rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
+ if(_7BUID)
+ {
+ rATQA[0] = 0x44;
rUIDBCC1[0] = 0x88;
- emlGetMemBt(&rUIDBCC1[1], 0, 3);
- rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
- emlGetMemBt(rUIDBCC2, 3, 4);
rUIDBCC2[4] = rUIDBCC2[0] ^ rUIDBCC2[1] ^ rUIDBCC2[2] ^ rUIDBCC2[3];
}
-// -------------------------------------- test area
-
-// -------------------------------------- END test area
// start mkseconds counter
StartCountUS();
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
SpinDelay(200);
- if (MF_DBGLEVEL >= 1) Dbprintf("Started. 7buid=%d", _7BUID);
+ if (MF_DBGLEVEL >= 1) {
+ if (!_7BUID) {
+ Dbprintf("4B UID: %02x%02x%02x%02x",rUIDBCC1[0] , rUIDBCC1[1] , rUIDBCC1[2] , rUIDBCC1[3]);
+ }else
+ {
+ Dbprintf("7B UID: (%02x)%02x%02x%02x%02x%02x%02x%02x",rUIDBCC1[0] , rUIDBCC1[1] , rUIDBCC1[2] , rUIDBCC1[3],rUIDBCC2[0],rUIDBCC2[1] ,rUIDBCC2[2] , rUIDBCC2[3]);
+ }
+ }
// calibrate mkseconds counter
GetDeltaCountUS();
- while (true) {
+ bool finished = false;
+ while (!BUTTON_PRESS() && !finished) {
WDT_HIT();
- if(BUTTON_PRESS()) {
- break;
- }
-
// find reader field
// Vref = 3300mV, and an 10:1 voltage divider on the input
// can measure voltages up to 33000 mV
LED_A_ON();
}
}
+ if(cardSTATE == MFEMUL_NOFIELD) continue;
- if (cardSTATE != MFEMUL_NOFIELD) {
- res = EmGetCmd(receivedCmd, &len, RECV_CMD_SIZE); // (+ nextCycleTimeout)
- if (res == 2) {
- cardSTATE = MFEMUL_NOFIELD;
- LEDsoff();
- continue;
- }
- if(res) break;
- }
-
- //nextCycleTimeout = 0;
-
-// if (len) Dbprintf("len:%d cmd: %02x %02x %02x %02x", len, receivedCmd[0], receivedCmd[1], receivedCmd[2], receivedCmd[3]);
-
- if (len != 4 && cardSTATE != MFEMUL_NOFIELD) { // len != 4 <---- speed up the code 4 authentication
- // REQ or WUP request in ANY state and WUP in HALTED state
- if (len == 1 && ((receivedCmd[0] == 0x26 && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == 0x52)) {
- selTimer = GetTickCount();
- EmSendCmdEx(rATQA, sizeof(rATQA), (receivedCmd[0] == 0x52));
- cardSTATE = MFEMUL_SELECT1;
-
- // init crypto block
- LED_B_OFF();
- LED_C_OFF();
- crypto1_destroy(pcs);
- cardAUTHKEY = 0xff;
- }
+ //Now, get data
+
+ res = EmGetCmd(receivedCmd, &len, RECV_CMD_SIZE); // (+ nextCycleTimeout)
+ if (res == 2) { //Field is off!
+ cardSTATE = MFEMUL_NOFIELD;
+ LEDsoff();
+ continue;
+ }else if(res == 1) break;//return value 1 means button press
+
+
+ // REQ or WUP request in ANY state and WUP in HALTED state
+ if (len == 1 && ((receivedCmd[0] == 0x26 && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == 0x52)) {
+ selTimer = GetTickCount();
+ EmSendCmdEx(rATQA, sizeof(rATQA), (receivedCmd[0] == 0x52));
+ cardSTATE = MFEMUL_SELECT1;
+
+ // init crypto block
+ LED_B_OFF();
+ LED_C_OFF();
+ crypto1_destroy(pcs);
+ cardAUTHKEY = 0xff;
+ continue;
}
-
+
switch (cardSTATE) {
- case MFEMUL_NOFIELD:{
- break;
- }
- case MFEMUL_HALTED:{
- break;
- }
+ case MFEMUL_NOFIELD:
+ case MFEMUL_HALTED:
case MFEMUL_IDLE:{
break;
}
case MFEMUL_SELECT1:{
// select all
if (len == 2 && (receivedCmd[0] == 0x93 && receivedCmd[1] == 0x20)) {
+ if (MF_DBGLEVEL >= 4) Dbprintf("SELECT ALL received");
EmSendCmd(rUIDBCC1, sizeof(rUIDBCC1));
break;
}
+ if (MF_DBGLEVEL >= 4 && len == 9 && receivedCmd[0] == 0x93 && receivedCmd[1] == 0x70 )
+ {
+ Dbprintf("SELECT %02x%02x%02x%02x received",receivedCmd[2],receivedCmd[3],receivedCmd[4],receivedCmd[5]);
+ }
// select card
if (len == 9 &&
(receivedCmd[0] == 0x93 && receivedCmd[1] == 0x70 && memcmp(&receivedCmd[2], rUIDBCC1, 4) == 0)) {
+
if (!_7BUID)
EmSendCmd(rSAK, sizeof(rSAK));
else
break;
}
+ case MFEMUL_AUTH1:{
+ if( len != 8)
+ {
+ cardSTATE_TO_IDLE();
+ break;
+ }
+ uint32_t ar = bytes_to_num(receivedCmd, 4);
+ uint32_t nr= bytes_to_num(&receivedCmd[4], 4);
+
+ //Collect AR/NR
+ if(ar_nr_collected < 2){
+ if(ar_nr_responses[ar_nr_collected*4+2] != ar)
+ {// Avoid duplicates
+ ar_nr_collected++;
+ ar_nr_responses[ar_nr_collected*4] = cuid;
+ ar_nr_responses[ar_nr_collected*4+1] = nonce;
+ ar_nr_responses[ar_nr_collected*4+2] = ar;
+ ar_nr_responses[ar_nr_collected*4+3] = nr;
+ }
+ }
+
+ // --- crypto
+ crypto1_word(pcs, ar , 1);
+ cardRr = nr ^ crypto1_word(pcs, 0, 0);
+
+ // test if auth OK
+ if (cardRr != prng_successor(nonce, 64)){
+ if (MF_DBGLEVEL >= 2) Dbprintf("AUTH FAILED. cardRr=%08x, succ=%08x",cardRr, prng_successor(nonce, 64));
+ //Shouldn't we respond anything here?
+ // Right now, we don't nack or anything, which causes the
+ // reader to do a WUPA after a while. /Martin
+ cardSTATE_TO_IDLE();
+ break;
+ }
+
+ ans = prng_successor(nonce, 96) ^ crypto1_word(pcs, 0, 0);
+
+ num_to_bytes(ans, 4, rAUTH_AT);
+ // --- crypto
+ EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
+ LED_C_ON();
+ cardSTATE = MFEMUL_WORK;
+ if (MF_DBGLEVEL >= 4) Dbprintf("AUTH COMPLETED. sector=%d, key=%d time=%d", cardAUTHSC, cardAUTHKEY, GetTickCount() - authTimer);
+ break;
+ }
case MFEMUL_SELECT2:{
if (!len) break;
// i guess there is a command). go into the work state.
if (len != 4) break;
cardSTATE = MFEMUL_WORK;
- goto lbWORK;
- }
- case MFEMUL_AUTH1:{
- if (len == 8) {
- // --- crypto
- rn_enc = bytes_to_num(receivedCmd, 4);
- crypto1_word(pcs, rn_enc , 1);
- cardRr = bytes_to_num(&receivedCmd[4], 4) ^ crypto1_word(pcs, 0, 0);
- // test if auth OK
- if (cardRr != prng_successor(nonce, 64)){
- if (MF_DBGLEVEL >= 4) Dbprintf("AUTH FAILED. cardRr=%08x, succ=%08x", cardRr, prng_successor(nonce, 64));
- cardSTATE_TO_IDLE();
- break;
- }
- ans = prng_successor(nonce, 96) ^ crypto1_word(pcs, 0, 0);
- num_to_bytes(ans, 4, rAUTH_AT);
- // --- crypto
- EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
- cardSTATE = MFEMUL_AUTH2;
- } else {
- cardSTATE_TO_IDLE();
- }
- if (cardSTATE != MFEMUL_AUTH2) break;
- }
- case MFEMUL_AUTH2:{
- LED_C_ON();
- cardSTATE = MFEMUL_WORK;
- if (MF_DBGLEVEL >= 4) Dbprintf("AUTH COMPLETED. sec=%d, key=%d time=%d", cardAUTHSC, cardAUTHKEY, GetTickCount() - authTimer);
- break;
+ //goto lbWORK;
+ //intentional fall-through to the next case-stmt
}
case MFEMUL_WORK:{
-lbWORK: if (len == 0) break;
-
- if (cardAUTHKEY == 0xff) {
- // first authentication
- if (len == 4 && (receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61)) {
- authTimer = GetTickCount();
-
- cardAUTHSC = receivedCmd[1] / 4; // received block num
- cardAUTHKEY = receivedCmd[0] - 0x60;
-
- // --- crypto
- crypto1_create(pcs, emlGetKey(cardAUTHSC, cardAUTHKEY));
- ans = nonce ^ crypto1_word(pcs, cuid ^ nonce, 0);
- num_to_bytes(nonce, 4, rAUTH_AT);
- EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
- // --- crypto
-
-// last working revision
-// EmSendCmd14443aRaw(resp1, resp1Len, 0);
-// LogTrace(NULL, 0, GetDeltaCountUS(), 0, true);
+ if (len == 0) break;
- cardSTATE = MFEMUL_AUTH1;
- //nextCycleTimeout = 10;
- break;
- }
- } else {
+ bool encrypted_data = (cardAUTHKEY != 0xFF) ;
+
+ if(encrypted_data)
+ {
// decrypt seqence
mf_crypto1_decrypt(pcs, receivedCmd, len);
-
- // nested authentication
- if (len == 4 && (receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61)) {
- authTimer = GetTickCount();
+ }
- cardAUTHSC = receivedCmd[1] / 4; // received block num
- cardAUTHKEY = receivedCmd[0] - 0x60;
+ if (len == 4 && (receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61)) {
+ authTimer = GetTickCount();
+ cardAUTHSC = receivedCmd[1] / 4; // received block num
+ cardAUTHKEY = receivedCmd[0] - 0x60;
+ crypto1_destroy(pcs);//Added by martin
+ crypto1_create(pcs, emlGetKey(cardAUTHSC, cardAUTHKEY));
- // --- crypto
- crypto1_create(pcs, emlGetKey(cardAUTHSC, cardAUTHKEY));
- ans = nonce ^ crypto1_word(pcs, cuid ^ nonce, 0);
- num_to_bytes(ans, 4, rAUTH_AT);
- EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
- // --- crypto
+ if (!encrypted_data) { // first authentication
+ if (MF_DBGLEVEL >= 2) Dbprintf("Reader authenticating for block %d (0x%02x) with key %d",receivedCmd[1] ,receivedCmd[1],cardAUTHKEY );
- cardSTATE = MFEMUL_AUTH1;
- //nextCycleTimeout = 10;
- break;
+ crypto1_word(pcs, cuid ^ nonce, 0);//Update crypto state
+ num_to_bytes(nonce, 4, rAUTH_AT); // Send nonce
+ }
+ else{ // nested authentication
+ if (MF_DBGLEVEL >= 2) Dbprintf("Reader doing nested authentication for block %d (0x%02x) with key %d",receivedCmd[1] ,receivedCmd[1],cardAUTHKEY );
+ ans = nonce ^ crypto1_word(pcs, cuid ^ nonce, 0);
+ num_to_bytes(ans, 4, rAUTH_AT);
}
+ EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
+ //Dbprintf("Sending rAUTH %02x%02x%02x%02x", rAUTH_AT[0],rAUTH_AT[1],rAUTH_AT[2],rAUTH_AT[3]);
+ cardSTATE = MFEMUL_AUTH1;
+ break;
}
-
+
// rule 13 of 7.5.3. in ISO 14443-4. chaining shall be continued
// BUT... ACK --> NACK
if (len == 1 && receivedCmd[0] == CARD_ACK) {
break;
}
- // read block
- if (len == 4 && receivedCmd[0] == 0x30) {
- if (receivedCmd[1] >= 16 * 4 || receivedCmd[1] / 4 != cardAUTHSC) {
+ if(len != 4) break;
+
+ if(receivedCmd[0] == 0x30 // read block
+ || receivedCmd[0] == 0xA0 // write block
+ || receivedCmd[0] == 0xC0
+ || receivedCmd[0] == 0xC1
+ || receivedCmd[0] == 0xC2 // inc dec restore
+ || receivedCmd[0] == 0xB0) // transfer
+ {
+ if (receivedCmd[1] >= 16 * 4)
+ {
+
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02) on out of range block: %d (0x%02x), nacking",receivedCmd[0],receivedCmd[1],receivedCmd[1]);
+ break;
+ }
+
+ if (receivedCmd[1] / 4 != cardAUTHSC)
+ {
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate (0x%02) on block (0x%02x) not authenticated for (0x%02x), nacking",receivedCmd[0],receivedCmd[1],cardAUTHSC);
break;
}
+ }
+ // read block
+ if (receivedCmd[0] == 0x30) {
+ if (MF_DBGLEVEL >= 2) {
+ Dbprintf("Reader reading block %d (0x%02x)",receivedCmd[1],receivedCmd[1]);
+ }
emlGetMem(response, receivedCmd[1], 1);
AppendCrc14443a(response, 16);
mf_crypto1_encrypt(pcs, response, 18, &par);
EmSendCmdPar(response, 18, par);
+ numReads++;
+ if(exitAfterNReads > 0 && numReads == exitAfterNReads)
+ {
+ Dbprintf("%d reads done, exiting", numReads);
+ finished = true;
+ }
break;
}
-
// write block
- if (len == 4 && receivedCmd[0] == 0xA0) {
- if (receivedCmd[1] >= 16 * 4 || receivedCmd[1] / 4 != cardAUTHSC) {
- EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
- break;
- }
+ if (receivedCmd[0] == 0xA0) {
+ if (MF_DBGLEVEL >= 2) Dbprintf("RECV 0xA0 write block %d (%02x)",receivedCmd[1],receivedCmd[1]);
+
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
//nextCycleTimeout = 50;
cardSTATE = MFEMUL_WRITEBL2;
cardWRBL = receivedCmd[1];
break;
- }
-
- // works with cardINTREG
-
+ }
// increment, decrement, restore
- if (len == 4 && (receivedCmd[0] == 0xC0 || receivedCmd[0] == 0xC1 || receivedCmd[0] == 0xC2)) {
- if (receivedCmd[1] >= 16 * 4 ||
- receivedCmd[1] / 4 != cardAUTHSC ||
- emlCheckValBl(receivedCmd[1])) {
+ if (receivedCmd[0] == 0xC0 || receivedCmd[0] == 0xC1 || receivedCmd[0] == 0xC2) {
+ if (MF_DBGLEVEL >= 2) Dbprintf("RECV 0x%02x inc(0xC1)/dec(0xC0)/restore(0xC2) block %d (%02x)",receivedCmd[0],receivedCmd[1],receivedCmd[1]);
+
+ if (emlCheckValBl(receivedCmd[1])) {
+ if (MF_DBGLEVEL >= 2) Dbprintf("Reader tried to operate on block, but emlCheckValBl failed, nacking");
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
break;
}
if (receivedCmd[0] == 0xC2)
cardSTATE = MFEMUL_INTREG_REST;
cardWRBL = receivedCmd[1];
-
+
break;
}
-
// transfer
- if (len == 4 && receivedCmd[0] == 0xB0) {
- if (receivedCmd[1] >= 16 * 4 || receivedCmd[1] / 4 != cardAUTHSC) {
- EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
- break;
- }
+ if (receivedCmd[0] == 0xB0) {
+ if (MF_DBGLEVEL >= 2) Dbprintf("RECV 0x%02x transfer block %d (%02x)",receivedCmd[0],receivedCmd[1],receivedCmd[1]);
if (emlSetValBl(cardINTREG, cardINTBLOCK, receivedCmd[1]))
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
}
// halt
- if (len == 4 && (receivedCmd[0] == 0x50 && receivedCmd[1] == 0x00)) {
+ if (receivedCmd[0] == 0x50 && receivedCmd[1] == 0x00) {
LED_B_OFF();
LED_C_OFF();
cardSTATE = MFEMUL_HALTED;
if (MF_DBGLEVEL >= 4) Dbprintf("--> HALTED. Selected time: %d ms", GetTickCount() - selTimer);
break;
}
-
- // command not allowed
- if (len == 4) {
+ // RATS
+ if (receivedCmd[0] == 0xe0) {//RATS
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
break;
}
+ // command not allowed
+ if (MF_DBGLEVEL >= 4) Dbprintf("Received command not allowed, nacking");
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+
// case break
break;
}
// add trace trailer
memset(rAUTH_NT, 0x44, 4);
LogTrace(rAUTH_NT, 4, 0, 0, TRUE);
-
+ if(flags & FLAG_INTERACTIVE)// Interactive mode flag, means we need to send ACK
+ {
+ //May just aswell send the collected ar_nr in the response aswell
+ cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,0,0,&ar_nr_responses,ar_nr_collected*4*4);
+ }
+ if(flags & FLAG_NR_AR_ATTACK)
+ {
+ if(ar_nr_collected > 1)
+ {
+ Dbprintf("Collected two pairs of AR/NR which can be used to extract keys from reader:");
+ Dbprintf("../tools/mfcrack32 %08x %08x %08x %08x",
+ ar_nr_responses[0], // UID
+ ar_nr_responses[1], //NT
+ ar_nr_responses[2], //AR1
+ ar_nr_responses[3], //NR1
+ ar_nr_responses[6], //AR2
+ ar_nr_responses[7] //NR2
+ );
+ }else
+ {
+ Dbprintf("Failed to obtain two AR/NR pairs!");
+ if(ar_nr_collected >0)
+ {
+ Dbprintf("Only got these: UID=%08d, nonce=%08d, AR1=%08d, NR1=%08d",
+ ar_nr_responses[0], // UID
+ ar_nr_responses[1], //NT
+ ar_nr_responses[2], //AR1
+ ar_nr_responses[3] //NR1
+ );
+ }
+ }
+ }
if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, traceLen);
}
+
+
//-----------------------------------------------------------------------------
// MIFARE sniffer.
//
projects / proxmark3-svn / blobdiff