}
/* And ready to receive another command. */
UartReset();
+ //UartInit(receivedCmd, receivedCmdPar);
/* And also reset the demod code, which might have been */
/* false-triggered by the commands from the reader. */
DemodReset();
response2a[0] = data[3];
response2a[1] = data[4];
response2a[2] = data[5];
- response2a[3] = data[7];
+ response2a[3] = data[6]; //??
response2a[4] = response2a[0] ^ response2a[1] ^ response2a[2] ^ response2a[3];
// Configure the ATQA and SAK accordingly
response3a[0] = sak & 0xFB;
ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
- uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
+ uint8_t response5[] = { 0x01, 0x01, 0x01, 0x01 }; // Very random tag nonce
uint8_t response6[] = { 0x04, 0x58, 0x80, 0x02, 0x00, 0x00 }; // dummy ATS (pseudo-ATR), answer to RATS:
// Format byte = 0x58: FSCI=0x08 (FSC=256), TA(1) and TC(1) present,
// TA(1) = 0x80: different divisors not supported, DR = 1, DS = 1
cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,len,0,&ar_nr_responses,len);
ar_nr_collected = 0;
memset(ar_nr_responses, 0x00, len);
- Dbprintf("ICE");
}
}
} else {
uint8_t cardWRBL = 0;
uint8_t cardAUTHSC = 0;
uint8_t cardAUTHKEY = 0xff; // no authentication
- uint32_t cardRr = 0;
+// uint32_t cardRr = 0;
uint32_t cuid = 0;
//uint32_t rn_enc = 0;
uint32_t ans = 0;
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 rSAK[] = {0x08, 0xb6, 0xdd}; // Mifare Classic
+ uint8_t rSAK[] = {0x09, 0x3f, 0xcc }; // Mifare Mini
uint8_t rSAK1[] = {0x04, 0xda, 0x17};
- uint8_t rAUTH_NT[] = {0x01, 0x02, 0x03, 0x04};
+ uint8_t rAUTH_NT[] = {0x01, 0x01, 0x01, 0x01};
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};
+ uint32_t ar_nr_responses[] = {0,0,0,0,0,0,0,0,0,0};
uint8_t ar_nr_collected = 0;
// free eventually allocated BigBuf memory but keep Emulator Memory
}
}
+ // save uid.
+ ar_nr_responses[0*5] = bytes_to_num(rUIDBCC1+1, 3);
+ if ( _7BUID )
+ ar_nr_responses[0*5+1] = bytes_to_num(rUIDBCC2, 4);
+
/*
* Regardless of what method was used to set the UID, set fifth byte and modify
* the ATQA for 4 or 7-byte UID
if(cardSTATE == MFEMUL_NOFIELD) continue;
//Now, get data
-
res = EmGetCmd(receivedCmd, &len, receivedCmd_par);
if (res == 2) { //Field is off!
cardSTATE = MFEMUL_NOFIELD;
uint32_t nr = bytes_to_num(&receivedCmd[4], 4);
//Collect AR/NR
- if(ar_nr_collected < 2 && cardAUTHSC == 2){
+ //if(ar_nr_collected < 2 && cardAUTHSC == 2){
+ if(ar_nr_collected < 2){
if(ar_nr_responses[2] != ar)
{// Avoid duplicates... probably not necessary, ar should vary.
- 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;
+ //ar_nr_responses[ar_nr_collected*5] = 0;
+ //ar_nr_responses[ar_nr_collected*5+1] = 0;
+ ar_nr_responses[ar_nr_collected*5+2] = nonce;
+ ar_nr_responses[ar_nr_collected*5+3] = nr;
+ ar_nr_responses[ar_nr_collected*5+4] = ar;
ar_nr_collected++;
}
// Interactive mode flag, means we need to send ACK
if(flags & FLAG_INTERACTIVE && ar_nr_collected == 2)
{
finished = true;
- }
+ }
}
// --- 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 for sector %d with key %c. cardRr=%08x, succ=%08x",
- cardAUTHSC, cardAUTHKEY == 0 ? 'A' : 'B',
- cardRr, prng_successor(nonce, 64));
+ //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 >= 4) Dbprintf("AUTH FAILED for sector %d with key %c. cardRr=%08x, succ=%08x",
+ // cardAUTHSC, cardAUTHKEY == 0 ? 'A' : 'B',
+ // 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
// -- which is the correct response. /piwi
- cardSTATE_TO_IDLE();
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
- break;
- }
+ //cardSTATE_TO_IDLE();
+ //LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ //break;
+ //}
ans = prng_successor(nonce, 96) ^ crypto1_word(pcs, 0, 0);
|| 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]);
+ if (MF_DBGLEVEL >= 4) 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);
+ if (MF_DBGLEVEL >= 4) Dbprintf("Reader tried to operate (0x%02) on block (0x%02x) not authenticated for (0x%02x), nacking",receivedCmd[0],receivedCmd[1],cardAUTHSC);
break;
}
}
if (receivedCmd[0] == 0xC0 || receivedCmd[0] == 0xC1 || receivedCmd[0] == 0xC2) {
if (MF_DBGLEVEL >= 4) 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");
+ if (MF_DBGLEVEL >= 4) Dbprintf("Reader tried to operate on block, but emlCheckValBl failed, nacking");
EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
break;
}
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,1,0,&ar_nr_responses,ar_nr_collected*4*4);
+ uint8_t len = ar_nr_collected*5*4;
+ cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, len, 0, &ar_nr_responses, len);
}
if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1 )
{
if(ar_nr_collected > 1 ) {
Dbprintf("Collected two pairs of AR/NR which can be used to extract keys from reader:");
- Dbprintf("../tools/mfkey/mfkey32 %08x %08x %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
+ Dbprintf("../tools/mfkey/mfkey32 %06x%08x %08x %08x %08x %08x %08x",
+ ar_nr_responses[0], // UID1
+ ar_nr_responses[1], // UID2
+ ar_nr_responses[2], // NT
+ ar_nr_responses[3], // AR1
+ ar_nr_responses[4], // NR1
+ ar_nr_responses[8], // AR2
+ ar_nr_responses[9] // NR2
);
} else {
Dbprintf("Failed to obtain two AR/NR pairs!");
if(ar_nr_collected > 0 ) {
- Dbprintf("Only got these: UID=%08x, nonce=%08x, AR1=%08x, NR1=%08x",
- ar_nr_responses[0], // UID
- ar_nr_responses[1], // NT
- ar_nr_responses[2], // AR1
- ar_nr_responses[3] // NR1
+ Dbprintf("Only got these: UID=%07x%08x, nonce=%08x, AR1=%08x, NR1=%08x",
+ ar_nr_responses[0], // UID1
+ ar_nr_responses[1], // UID2
+ ar_nr_responses[2], // NT
+ ar_nr_responses[3], // AR1
+ ar_nr_responses[4] // NR1
);
}
}
}
- if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, BigBuf_get_traceLen());
-
+ if (MF_DBGLEVEL >= 1) Dbprintf("Emulator stopped. Tracing: %d trace length: %d ", tracing, BigBuf_get_traceLen());
}
if (MfSniffLogic(receivedCmd, Uart.len, Uart.parity, Uart.bitCount, TRUE)) break;
/* And ready to receive another command. */
- UartInit(receivedCmd, receivedCmdPar);
+ //UartInit(receivedCmd, receivedCmdPar);
+ UartReset();
/* And also reset the demod code */
DemodReset();
projects / proxmark3-svn / blobdiff