//-----------------------------------------------------------------------------
+// Merlok - June 2011
// Gerhard de Koning Gans - May 2008
// Hagen Fritsch - June 2010
//
#include "iso14443crc.h"
#include "iso14443a.h"
+#include "crapto1.h"
+#include "mifareutil.h"
static uint8_t *trace = (uint8_t *) BigBuf;
static int traceLen = 0;
// Generate the parity value for a byte sequence
//
//-----------------------------------------------------------------------------
+byte_t oddparity (const byte_t bt)
+{
+ return OddByteParity[bt];
+}
+
uint32_t GetParity(const uint8_t * pbtCmd, int iLen)
{
int i;
uint8_t *output;
} Uart;
-static int MillerDecoding(int bit)
+static RAMFUNC int MillerDecoding(int bit)
{
int error = 0;
int bitright;
if(!Uart.syncBit) { Uart.syncBit = bit & 2; Uart.samples = 1; }
else if(bit & 2) { Uart.syncBit = bit & 2; Uart.samples = 1; bit <<= 1; }
if(!Uart.syncBit) { Uart.syncBit = bit & 1; Uart.samples = 0;
- if(Uart.syncBit & (Uart.bitBuffer & 8)) {
+ if(Uart.syncBit && (Uart.bitBuffer & 8)) {
Uart.syncBit = 8;
// the first half bit period is expected in next sample
uint8_t *output;
} Demod;
-static int ManchesterDecoding(int v)
+static RAMFUNC int ManchesterDecoding(int v)
{
int bit;
int modulation;
Demod.syncBit = 0;
//Demod.samples = 0;
Demod.posCount = 1; // This is the first half bit period, so after syncing handle the second part
- if(bit & 0x08) { Demod.syncBit = 0x08; }
- if(!Demod.syncBit) {
- if(bit & 0x04) { Demod.syncBit = 0x04; }
- }
- else if(bit & 0x04) { Demod.syncBit = 0x04; bit <<= 4; }
- if(!Demod.syncBit) {
- if(bit & 0x02) { Demod.syncBit = 0x02; }
+
+ if(bit & 0x08) {
+ Demod.syncBit = 0x08;
}
- else if(bit & 0x02) { Demod.syncBit = 0x02; bit <<= 4; }
- if(!Demod.syncBit) {
- if(bit & 0x01) { Demod.syncBit = 0x01; }
- if(Demod.syncBit & (Demod.buffer & 0x08)) {
- Demod.syncBit = 0x08;
+ if(bit & 0x04) {
+ if(Demod.syncBit) {
+ bit <<= 4;
+ }
+ Demod.syncBit = 0x04;
+ }
- // The first half bitperiod is expected in next sample
- Demod.posCount = 0;
- Demod.output[Demod.len] = 0xfb;
+ if(bit & 0x02) {
+ if(Demod.syncBit) {
+ bit <<= 2;
}
+ Demod.syncBit = 0x02;
}
- else if(bit & 0x01) { Demod.syncBit = 0x01; }
+ if(bit & 0x01 && Demod.syncBit) {
+ Demod.syncBit = 0x01;
+ }
+
if(Demod.syncBit) {
Demod.len = 0;
Demod.state = DEMOD_START_OF_COMMUNICATION;
// triggering so that we start recording at the point that the tag is moved
// near the reader.
//-----------------------------------------------------------------------------
-void SnoopIso14443a(void)
+void RAMFUNC SnoopIso14443a(void)
{
// #define RECV_CMD_OFFSET 2032 // original (working as of 21/2/09) values
// #define RECV_RES_OFFSET 2096 // original (working as of 21/2/09) values
// As we receive stuff, we copy it from receivedCmd or receivedResponse
// into trace, along with its length and other annotations.
//uint8_t *trace = (uint8_t *)BigBuf;
- //int traceLen = 0;
+
+ traceLen = 0; // uncommented to fix ISSUE 15 - gerhard - jan2011
// The DMA buffer, used to stream samples from the FPGA
int8_t *dmaBuf = ((int8_t *)BigBuf) + DMA_BUFFER_OFFSET;
// Count of samples received so far, so that we can include timing
// information in the trace buffer.
int samples = 0;
- int rsamples = 0;
+ int rsamples = 0;
memset(trace, 0x44, RECV_CMD_OFFSET);
receivedCmd[0], receivedCmd[1], receivedCmd[2]);
} else {
// Never seen this command before
- Dbprintf("Unknown command received from reader: %x %x %x %x %x %x %x %x %x",
+ Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
+ len,
receivedCmd[0], receivedCmd[1], receivedCmd[2],
- receivedCmd[3], receivedCmd[3], receivedCmd[4],
- receivedCmd[5], receivedCmd[6], receivedCmd[7]);
+ receivedCmd[3], receivedCmd[4], receivedCmd[5],
+ receivedCmd[6], receivedCmd[7], receivedCmd[8]);
// Do not respond
resp = resp1; respLen = 0; order = 0;
}
int ReaderReceive(uint8_t* receivedAnswer)
{
int samples = 0;
- if (!GetIso14443aAnswerFromTag(receivedAnswer,100,&samples,0)) return FALSE;
+ if (!GetIso14443aAnswerFromTag(receivedAnswer,160,&samples,0)) return FALSE;
+ if (tracing) LogTrace(receivedAnswer,Demod.len,samples,Demod.parityBits,FALSE);
+ if(samples == 0) return FALSE;
+ return Demod.len;
+}
+
+int ReaderReceivePar(uint8_t* receivedAnswer, uint32_t * parptr)
+{
+ int samples = 0;
+ if (!GetIso14443aAnswerFromTag(receivedAnswer,160,&samples,0)) return FALSE;
if (tracing) LogTrace(receivedAnswer,Demod.len,samples,Demod.parityBits,FALSE);
+ *parptr = Demod.parityBits;
if(samples == 0) return FALSE;
return Demod.len;
}
/* performs iso14443a anticolision procedure
* fills the uid pointer unless NULL
* fills resp_data unless NULL */
-int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data) {
- uint8_t wupa[] = { 0x52 };
+int iso14443a_select_card(uint8_t * uid_ptr, iso14a_card_select_t * resp_data, uint32_t * cuid_ptr) {
+ uint8_t wupa[] = { 0x52 }; // 0x26 - REQA 0x52 - WAKE-UP
uint8_t sel_all[] = { 0x93,0x20 };
uint8_t sel_uid[] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
uint8_t rats[] = { 0xE0,0x80,0x00,0x00 }; // FSD=256, FSDI=8, CID=0
uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
- uint8_t* uid = resp + 7;
uint8_t sak = 0x04; // cascade uid
int cascade_level = 0;
int len;
+
+ // clear uid
+ memset(uid_ptr, 0, 8);
// Broadcast for a card, WUPA (0x52) will force response from all cards in the field
ReaderTransmitShort(wupa);
if(resp_data)
memcpy(resp_data->atqa, resp, 2);
- ReaderTransmit(sel_all,sizeof(sel_all));
- if(!ReaderReceive(uid)) return 0;
-
// OK we will select at least at cascade 1, lets see if first byte of UID was 0x88 in
// which case we need to make a cascade 2 request and select - this is a long UID
// While the UID is not complete, the 3nd bit (from the right) is set in the SAK.
ReaderTransmit(sel_all,sizeof(sel_all));
if (!ReaderReceive(resp)) return 0;
if(uid_ptr) memcpy(uid_ptr + cascade_level*4, resp, 4);
+
+ // calculate crypto UID
+ if(cuid_ptr) *cuid_ptr = bytes_to_num(resp, 4);
// Construct SELECT UID command
memcpy(sel_uid+2,resp,5);
resp_data->sak = sak;
resp_data->ats_len = 0;
}
+ //-- this byte not UID, it CT. http://www.nxp.com/documents/application_note/AN10927.pdf page 3
+ if (uid_ptr[0] == 0x88) {
+ memcpy(uid_ptr, uid_ptr + 1, 7);
+ uid_ptr[7] = 0;
+ }
if( (sak & 0x20) == 0)
return 2; // non iso14443a compliant tag
// Request for answer to select
- AppendCrc14443a(rats, 2);
- ReaderTransmit(rats, sizeof(rats));
- if (!(len = ReaderReceive(resp))) return 0;
- if(resp_data) {
+ if(resp_data) { // JCOP cards - if reader sent RATS then there is no MIFARE session at all!!!
+ AppendCrc14443a(rats, 2);
+ ReaderTransmit(rats, sizeof(rats));
+
+ if (!(len = ReaderReceive(resp))) return 0;
+
memcpy(resp_data->ats, resp, sizeof(resp_data->ats));
resp_data->ats_len = len;
}
-
+
return 1;
}
if(param & ISO14A_CONNECT) {
iso14443a_setup();
- ack->arg[0] = iso14443a_select_card(ack->d.asBytes, (iso14a_card_select_t *) (ack->d.asBytes+12));
+ ack->arg[0] = iso14443a_select_card(ack->d.asBytes, (iso14a_card_select_t *) (ack->d.asBytes+12), NULL);
UsbSendPacket((void *)ack, sizeof(UsbCommand));
}
{
// Mifare AUTH
uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
- uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
+ uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
- uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
- traceLen = 0;
- tracing = false;
+ uint8_t* receivedAnswer = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+ traceLen = 0;
+ tracing = false;
+
+ iso14443a_setup();
+
+ LED_A_ON();
+ LED_B_OFF();
+ LED_C_OFF();
+
+ byte_t nt_diff = 0;
+ LED_A_OFF();
+ byte_t par = 0;
+ byte_t par_mask = 0xff;
+ byte_t par_low = 0;
+ int led_on = TRUE;
+ uint8_t uid[8];
+ uint32_t cuid;
+
+ tracing = FALSE;
+ byte_t nt[4] = {0,0,0,0};
+ byte_t nt_attacked[4], nt_noattack[4];
+ byte_t par_list[8] = {0,0,0,0,0,0,0,0};
+ byte_t ks_list[8] = {0,0,0,0,0,0,0,0};
+ num_to_bytes(parameter, 4, nt_noattack);
+ int isOK = 0, isNULL = 0;
+
+ while(TRUE)
+ {
+ LED_C_ON();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+ LED_C_OFF();
+
+ // Test if the action was cancelled
+ if(BUTTON_PRESS()) {
+ break;
+ }
+
+ if(!iso14443a_select_card(uid, NULL, &cuid)) continue;
+
+ // Transmit MIFARE_CLASSIC_AUTH
+ ReaderTransmit(mf_auth, sizeof(mf_auth));
+
+ // Receive the (16 bit) "random" nonce
+ if (!ReaderReceive(receivedAnswer)) continue;
+ memcpy(nt, receivedAnswer, 4);
+
+ // Transmit reader nonce and reader answer
+ ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar),par);
+
+ // Receive 4 bit answer
+ if (ReaderReceive(receivedAnswer))
+ {
+ if ( (parameter != 0) && (memcmp(nt, nt_noattack, 4) == 0) ) continue;
+
+ isNULL = (nt_attacked[0] = 0) && (nt_attacked[1] = 0) && (nt_attacked[2] = 0) && (nt_attacked[3] = 0);
+ if ( (isNULL != 0 ) && (memcmp(nt, nt_attacked, 4) != 0) ) continue;
+
+ if (nt_diff == 0)
+ {
+ LED_A_ON();
+ memcpy(nt_attacked, nt, 4);
+ par_mask = 0xf8;
+ par_low = par & 0x07;
+ }
+
+ led_on = !led_on;
+ if(led_on) LED_B_ON(); else LED_B_OFF();
+ par_list[nt_diff] = par;
+ ks_list[nt_diff] = receivedAnswer[0] ^ 0x05;
+
+ // Test if the information is complete
+ if (nt_diff == 0x07) {
+ isOK = 1;
+ break;
+ }
+
+ nt_diff = (nt_diff + 1) & 0x07;
+ mf_nr_ar[3] = nt_diff << 5;
+ par = par_low;
+ } else {
+ if (nt_diff == 0)
+ {
+ par++;
+ } else {
+ par = (((par >> 3) + 1) << 3) | par_low;
+ }
+ }
+ }
+
+ LogTrace(nt, 4, 0, GetParity(nt, 4), TRUE);
+ LogTrace(par_list, 8, 0, GetParity(par_list, 8), TRUE);
+ LogTrace(ks_list, 8, 0, GetParity(ks_list, 8), TRUE);
+
+ UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+ memcpy(ack.d.asBytes + 0, uid, 4);
+ memcpy(ack.d.asBytes + 4, nt, 4);
+ memcpy(ack.d.asBytes + 8, par_list, 8);
+ memcpy(ack.d.asBytes + 16, ks_list, 8);
+
+ LED_B_ON();
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+ // Thats it...
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+ tracing = TRUE;
+
+ if (MF_DBGLEVEL >= 1) DbpString("COMMAND mifare FINISHED");
+}
+
+//-----------------------------------------------------------------------------
+// Select, Authenticaate, Read an MIFARE tag.
+// read block
+//-----------------------------------------------------------------------------
+void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+{
+ // params
+ uint8_t blockNo = arg0;
+ uint8_t keyType = arg1;
+ uint64_t ui64Key = 0;
+ ui64Key = bytes_to_num(datain, 6);
+
+ // variables
+ byte_t isOK = 0;
+ byte_t dataoutbuf[16];
+ uint8_t uid[8];
+ uint32_t cuid;
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
+
+ // clear trace
+ traceLen = 0;
+// tracing = false;
+
+ iso14443a_setup();
+
+ LED_A_ON();
+ LED_B_OFF();
+ LED_C_OFF();
+
+ while (true) {
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
+ 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;
+ };
+
+ if(mifare_classic_halt(pcs, cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+ break;
+ };
+
+ isOK = 1;
+ break;
+ }
+
+ // ----------------------------- crypto1 destroy
+ crypto1_destroy(pcs);
+
+ if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
+
+ // add trace trailer
+ uid[0] = 0xff;
+ uid[1] = 0xff;
+ uid[2] = 0xff;
+ uid[3] = 0xff;
+ LogTrace(uid, 4, 0, 0, TRUE);
+
+ UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+ memcpy(ack.d.asBytes, dataoutbuf, 16);
+
+ LED_B_ON();
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+
+ // Thats it...
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+// tracing = TRUE;
+
+}
+
+//-----------------------------------------------------------------------------
+// Select, Authenticaate, Read an MIFARE tag.
+// read sector (data = 4 x 16 bytes = 64 bytes)
+//-----------------------------------------------------------------------------
+void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+{
+ // params
+ uint8_t sectorNo = arg0;
+ uint8_t keyType = arg1;
+ uint64_t ui64Key = 0;
+ ui64Key = bytes_to_num(datain, 6);
+
+ // variables
+ byte_t isOK = 0;
+ byte_t dataoutbuf[16 * 4];
+ uint8_t uid[8];
+ uint32_t cuid;
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
+
+ // clear trace
+ traceLen = 0;
+// tracing = false;
+
+ iso14443a_setup();
+
+ LED_A_ON();
+ LED_B_OFF();
+ LED_C_OFF();
+
+ while (true) {
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ if(mifare_classic_auth(pcs, cuid, sectorNo * 4, keyType, ui64Key, AUTH_FIRST)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
+ break;
+ };
+
+ if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 0, dataoutbuf + 16 * 0)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Read block 0 error");
+ break;
+ };
+ if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 1, dataoutbuf + 16 * 1)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Read block 1 error");
+ break;
+ };
+ if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 2, dataoutbuf + 16 * 2)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Read block 2 error");
+ break;
+ };
+ if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 3, dataoutbuf + 16 * 3)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Read block 3 error");
+ break;
+ };
+
+ if(mifare_classic_halt(pcs, cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+ break;
+ };
+
+ isOK = 1;
+ break;
+ }
+
+ // ----------------------------- crypto1 destroy
+ crypto1_destroy(pcs);
+
+ if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
+
+ // add trace trailer
+ uid[0] = 0xff;
+ uid[1] = 0xff;
+ uid[2] = 0xff;
+ uid[3] = 0xff;
+ LogTrace(uid, 4, 0, 0, TRUE);
+
+ UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+ memcpy(ack.d.asBytes, dataoutbuf, 16 * 2);
+
+ LED_B_ON();
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+
+ SpinDelay(100);
+
+ memcpy(ack.d.asBytes, dataoutbuf + 16 * 2, 16 * 2);
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+ // Thats it...
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+// tracing = TRUE;
+
+}
+
+//-----------------------------------------------------------------------------
+// Select, Authenticaate, Read an MIFARE tag.
+// read block
+//-----------------------------------------------------------------------------
+void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+{
+ // params
+ uint8_t blockNo = arg0;
+ uint8_t keyType = arg1;
+ uint64_t ui64Key = 0;
+ byte_t blockdata[16];
+
+ ui64Key = bytes_to_num(datain, 6);
+ memcpy(blockdata, datain + 10, 16);
+
+ // variables
+ byte_t isOK = 0;
+ uint8_t uid[8];
+ uint32_t cuid;
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
+
+ // clear trace
+ traceLen = 0;
+// tracing = false;
iso14443a_setup();
LED_B_OFF();
LED_C_OFF();
- byte_t nt_diff = 0;
- LED_A_OFF();
- byte_t par = 0;
- byte_t par_mask = 0xff;
- byte_t par_low = 0;
- int led_on = TRUE;
-
- tracing = FALSE;
- byte_t nt[4];
- byte_t nt_attacked[4];
- byte_t par_list[8];
- byte_t ks_list[8];
- num_to_bytes(parameter,4,nt_attacked);
-
- while(TRUE)
- {
+ while (true) {
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
+ 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;
+ };
+
+ if(mifare_classic_halt(pcs, cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+ break;
+ };
+
+ isOK = 1;
+ break;
+ }
+
+ // ----------------------------- crypto1 destroy
+ crypto1_destroy(pcs);
+
+ if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
+
+ // add trace trailer
+ uid[0] = 0xff;
+ uid[1] = 0xff;
+ uid[2] = 0xff;
+ uid[3] = 0xff;
+ LogTrace(uid, 4, 0, 0, TRUE);
+
+ UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+
+ LED_B_ON();
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+
+ // Thats it...
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+// tracing = TRUE;
+
+}
+
+// Return 1 if the nonce is invalid else return 0
+int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity) {
+ return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
+ (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
+ (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
+}
+
+
+//-----------------------------------------------------------------------------
+// MIFARE nested authentication.
+//
+//-----------------------------------------------------------------------------
+void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
+{
+ // params
+ uint8_t blockNo = arg0;
+ uint8_t keyType = arg1;
+ uint8_t targetBlockNo = arg2 & 0xff;
+ uint8_t targetKeyType = (arg2 >> 8) & 0xff;
+ uint64_t ui64Key = 0;
+
+ ui64Key = bytes_to_num(datain, 6);
+
+ // variables
+ int rtr, i, j, m, len;
+ int davg, dmin, dmax;
+ uint8_t uid[8];
+ uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;
+ uint8_t par_array[4];
+ nestedVector nvector[NES_MAX_INFO + 1][10];
+ int nvectorcount[NES_MAX_INFO + 1];
+ int ncount = 0;
+ UsbCommand ack = {CMD_ACK, {0, 0, 0}};
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ //init
+ for (i = 0; i < NES_MAX_INFO + 1; i++) nvectorcount[i] = 11; // 11 - empty block;
+
+ // clear trace
+ traceLen = 0;
+ tracing = false;
+
+ iso14443a_setup();
+
+ LED_A_ON();
+ LED_B_ON();
+ LED_C_OFF();
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
+
+ davg = dmax = 0;
+ dmin = 2000;
+
+ // test nonce distance
+ for (rtr = 0; rtr < 10; rtr++) {
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
+ SpinDelay(100);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
// Test if the action was cancelled
break;
}
- if(!iso14443a_select_card(NULL, NULL)) continue;
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
+ break;
+ };
+
+ if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error");
+ break;
+ };
+
+ nttmp = prng_successor(nt1, 500);
+ for (i = 501; i < 2000; i++) {
+ nttmp = prng_successor(nttmp, 1);
+ if (nttmp == nt2) break;
+ }
+
+ if (i != 2000) {
+ davg += i;
+ if (dmin > i) dmin = i;
+ if (dmax < i) dmax = i;
+ if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2=%08x distance=%d", rtr, nt1, nt2, i);
+ }
+ }
+
+ if (rtr == 0) return;
- // Transmit MIFARE_CLASSIC_AUTH
- ReaderTransmit(mf_auth,sizeof(mf_auth));
+ davg = davg / rtr;
+ if (MF_DBGLEVEL >= 3) Dbprintf("distance: min=%d max=%d avg=%d", dmin, dmax, davg);
- // Receive the (16 bit) "random" nonce
- if (!ReaderReceive(receivedAnswer)) continue;
- memcpy(nt,receivedAnswer,4);
+ LED_B_OFF();
- // Transmit reader nonce and reader answer
- ReaderTransmitPar(mf_nr_ar,sizeof(mf_nr_ar),par);
+// -------------------------------------------------------------------------------------------------
+
+ LED_C_ON();
- // Receive 4 bit answer
- if (ReaderReceive(receivedAnswer))
- {
- if (nt_diff == 0)
- {
- LED_A_ON();
- memcpy(nt_attacked,nt,4);
- par_mask = 0xf8;
- par_low = par & 0x07;
- }
+ // get crypted nonces for target sector
+ for (rtr = 0; rtr < NS_RETRIES_GETNONCE; rtr++) {
+ if (MF_DBGLEVEL >= 4) Dbprintf("------------------------------");
- if (memcmp(nt,nt_attacked,4) != 0) continue;
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(100);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
- led_on = !led_on;
- if(led_on) LED_B_ON(); else LED_B_OFF();
- par_list[nt_diff] = par;
- ks_list[nt_diff] = receivedAnswer[0]^0x05;
+ // Test if the action was cancelled
+ if(BUTTON_PRESS()) {
+ break;
+ }
- // Test if the information is complete
- if (nt_diff == 0x07) break;
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
+ break;
+ };
+
+ // nested authentication
+ len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par);
+ if (len != 4) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error len=%d", len);
+ break;
+ };
+
+ nt2 = bytes_to_num(receivedAnswer, 4);
+ if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2enc=%08x nt2par=%08x", rtr, nt1, nt2, par);
+
+ // Parity validity check
+ for (i = 0; i < 4; i++) {
+ par_array[i] = (oddparity(receivedAnswer[i]) != ((par & 0x08) >> 3));
+ par = par << 1;
+ }
+
+ ncount = 0;
+ for (m = dmin - NS_TOLERANCE; m < dmax + NS_TOLERANCE; m++) {
+ nttest = prng_successor(nt1, m);
+ ks1 = nt2 ^ nttest;
+
+ if (valid_nonce(nttest, nt2, ks1, par_array) && (ncount < 11)){
+
+ nvector[NES_MAX_INFO][ncount].nt = nttest;
+ nvector[NES_MAX_INFO][ncount].ks1 = ks1;
+ ncount++;
+ nvectorcount[NES_MAX_INFO] = ncount;
+ if (MF_DBGLEVEL >= 4) Dbprintf("valid m=%d ks1=%08x nttest=%08x", m, ks1, nttest);
+ }
- nt_diff = (nt_diff+1) & 0x07;
- mf_nr_ar[3] = nt_diff << 5;
- par = par_low;
- } else {
- if (nt_diff == 0)
- {
- par++;
- } else {
- par = (((par>>3)+1) << 3) | par_low;
- }
- }
- }
+ }
+
+ // select vector with length less than got
+ if (nvectorcount[NES_MAX_INFO] != 0) {
+ m = NES_MAX_INFO;
+
+ for (i = 0; i < NES_MAX_INFO; i++)
+ if (nvectorcount[i] > 10) {
+ m = i;
+ break;
+ }
+
+ if (m == NES_MAX_INFO)
+ for (i = 0; i < NES_MAX_INFO; i++)
+ if (nvectorcount[NES_MAX_INFO] < nvectorcount[i]) {
+ m = i;
+ break;
+ }
+
+ if (m != NES_MAX_INFO) {
+ for (i = 0; i < nvectorcount[m]; i++) {
+ nvector[m][i] = nvector[NES_MAX_INFO][i];
+ }
+ nvectorcount[m] = nvectorcount[NES_MAX_INFO];
+ }
+ }
+ }
- LogTrace(nt,4,0,GetParity(nt,4),TRUE);
- LogTrace(par_list,8,0,GetParity(par_list,8),TRUE);
- LogTrace(ks_list,8,0,GetParity(ks_list,8),TRUE);
+ LED_C_OFF();
+
+ // ----------------------------- crypto1 destroy
+ crypto1_destroy(pcs);
+
+ // add trace trailer
+ uid[0] = 0xff;
+ uid[1] = 0xff;
+ uid[2] = 0xff;
+ uid[3] = 0xff;
+ LogTrace(uid, 4, 0, 0, TRUE);
+
+ for (i = 0; i < NES_MAX_INFO; i++) {
+ if (nvectorcount[i] > 10) continue;
+
+ for (j = 0; j < nvectorcount[i]; j += 5) {
+ ncount = nvectorcount[i] - j;
+ if (ncount > 5) ncount = 5;
+
+ ack.arg[0] = 0; // isEOF = 0
+ ack.arg[1] = ncount;
+ ack.arg[2] = targetBlockNo + (targetKeyType * 0x100);
+ memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
+
+ memcpy(ack.d.asBytes, &cuid, 4);
+ for (m = 0; m < ncount; m++) {
+ memcpy(ack.d.asBytes + 8 + m * 8 + 0, &nvector[i][m + j].nt, 4);
+ memcpy(ack.d.asBytes + 8 + m * 8 + 4, &nvector[i][m + j].ks1, 4);
+ }
+
+ LED_B_ON();
+ SpinDelay(100);
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+ }
+ }
- // Thats it...
+ // finalize list
+ ack.arg[0] = 1; // isEOF = 1
+ ack.arg[1] = 0;
+ ack.arg[2] = 0;
+ memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
+
+ LED_B_ON();
+ SpinDelay(300);
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+ if (MF_DBGLEVEL >= 4) DbpString("NESTED FINISHED");
+
+ // Thats it...
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
+
tracing = TRUE;
}
+
+//-----------------------------------------------------------------------------
+// MIFARE check keys. key count up to 8.
+//
+//-----------------------------------------------------------------------------
+void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+{
+ // params
+ uint8_t blockNo = arg0;
+ uint8_t keyType = arg1;
+ uint8_t keyCount = arg2;
+ uint64_t ui64Key = 0;
+
+ // variables
+ int i;
+ byte_t isOK = 0;
+ uint8_t uid[8];
+ uint32_t cuid;
+ struct Crypto1State mpcs = {0, 0};
+ struct Crypto1State *pcs;
+ pcs = &mpcs;
+
+ // clear debug level
+ int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
+ MF_DBGLEVEL = MF_DBG_NONE;
+
+ // clear trace
+ traceLen = 0;
+ tracing = TRUE;
+
+ iso14443a_setup();
+
+ LED_A_ON();
+ LED_B_OFF();
+ LED_C_OFF();
+
+ SpinDelay(300);
+ for (i = 0; i < keyCount; i++) {
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(100);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+
+ if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if (OLD_MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+ break;
+ };
+
+ ui64Key = bytes_to_num(datain + i * 6, 6);
+ if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
+ continue;
+ };
+
+ isOK = 1;
+ break;
+ }
+
+ // ----------------------------- crypto1 destroy
+ crypto1_destroy(pcs);
+
+ // add trace trailer
+ uid[0] = 0xff;
+ uid[1] = 0xff;
+ uid[2] = 0xff;
+ uid[3] = 0xff;
+ LogTrace(uid, 4, 0, 0, TRUE);
+
+ UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
+ if (isOK) memcpy(ack.d.asBytes, datain + i * 6, 6);
+
+ LED_B_ON();
+ UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
+ LED_B_OFF();
+
+ // Thats it...
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ LEDsoff();
+
+ // restore debug level
+ MF_DBGLEVEL = OLD_MF_DBGLEVEL;
+}
+
+//-----------------------------------------------------------------------------
+// MIFARE 1K simulate.
+//
+//-----------------------------------------------------------------------------
+void Mifare1ksim(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
+{
+ int cardSTATE = MFEMUL_NOFIELD;
+
+ while (true) {
+
+ if(BUTTON_PRESS()) {
+ break;
+ }
+
+ switch (cardSTATE) {
+ case MFEMUL_NOFIELD:{
+ break;
+ }
+ case MFEMUL_IDLE:{
+ break;
+ }
+ case MFEMUL_SELECT1:{
+ break;
+ }
+ case MFEMUL_SELECT2:{
+ break;
+ }
+ case MFEMUL_AUTH1:{
+ break;
+ }
+ case MFEMUL_AUTH2:{
+ break;
+ }
+ case MFEMUL_HALTED:{
+ break;
+ }
+
+ }
+
+ }
+
+}
projects / proxmark3-svn / blobdiff