int nOutOfCnt;
int OutOfCnt;
int syncBit;
- int parityBits;
int samples;
int highCnt;
int swapper;
int counter;
int bitBuffer;
int dropPosition;
- uint8_t *output;
+ uint8_t *output;
} Uart;
static RAMFUNC int OutOfNDecoding(int bit)
if(Uart.byteCnt == 0) {
// Its not straightforward to show single EOFs
// So just leave it and do not return TRUE
- Uart.output[Uart.byteCnt] = 0xf0;
+ Uart.output[0] = 0xf0;
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits = 1;
}
else {
return TRUE;
if(Uart.bitCnt == 8) {
Uart.output[Uart.byteCnt] = (Uart.shiftReg & 0xff);
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits <<= 1;
- Uart.parityBits ^= OddByteParity[(Uart.shiftReg & 0xff)];
-
Uart.bitCnt = 0;
Uart.shiftReg = 0;
}
Uart.dropPosition--;
Uart.output[Uart.byteCnt] = (Uart.dropPosition & 0xff);
Uart.byteCnt++;
-
- // Calculate the parity bit for the client...
- Uart.parityBits <<= 1;
- Uart.parityBits ^= OddByteParity[(Uart.dropPosition & 0xff)];
-
Uart.bitCnt = 0;
Uart.shiftReg = 0;
Uart.nOutOfCnt = 0;
Uart.state = STATE_START_OF_COMMUNICATION;
Uart.bitCnt = 0;
Uart.byteCnt = 0;
- Uart.parityBits = 0;
Uart.nOutOfCnt = 0;
Uart.OutOfCnt = 4; // Start at 1/4, could switch to 1/256
Uart.dropPosition = 0;
int bitCount;
int posCount;
int syncBit;
- int parityBits;
uint16_t shiftReg;
int buffer;
int buffer2;
SUB_SECOND_HALF,
SUB_BOTH
} sub;
- uint8_t *output;
+ uint8_t *output;
} Demod;
static RAMFUNC int ManchesterDecoding(int v)
Demod.sub = SUB_FIRST_HALF;
Demod.bitCount = 0;
Demod.shiftReg = 0;
- Demod.parityBits = 0;
Demod.samples = 0;
if(Demod.posCount) {
//if(trigger) LED_A_OFF(); // Not useful in this case...
if(Demod.state == DEMOD_SOF_COMPLETE) {
Demod.output[Demod.len] = 0x0f;
Demod.len++;
- Demod.parityBits <<= 1;
- Demod.parityBits ^= OddByteParity[0x0f];
Demod.state = DEMOD_UNSYNCD;
// error = 0x0f;
return TRUE;
// Tag response does not need to be a complete byte!
if(Demod.len > 0 || Demod.bitCount > 0) {
if(Demod.bitCount > 1) { // was > 0, do not interpret last closing bit, is part of EOF
- Demod.shiftReg >>= (9 - Demod.bitCount);
+ Demod.shiftReg >>= (9 - Demod.bitCount); // right align data
Demod.output[Demod.len] = Demod.shiftReg & 0xff;
Demod.len++;
- // No parity bit, so just shift a 0
- Demod.parityBits <<= 1;
}
Demod.state = DEMOD_UNSYNCD;
Demod.shiftReg >>= 1;
Demod.output[Demod.len] = (Demod.shiftReg & 0xff);
Demod.len++;
-
- // FOR ISO15639 PARITY NOT SEND OTA, JUST CALCULATE IT FOR THE CLIENT
- Demod.parityBits <<= 1;
- Demod.parityBits ^= OddByteParity[(Demod.shiftReg & 0xff)];
-
Demod.bitCount = 0;
Demod.shiftReg = 0;
}
// So 32 should be enough!
uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
// The response (tag -> reader) that we're receiving.
- uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET);
-
+ uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// reset traceLen to 0
//if(!LogTrace(Uart.output,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break;
//if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break;
- if(tracing)
- {
- LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, Uart.parityBits,TRUE);
- LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, TRUE);
+ if(tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(Uart.output, Uart.byteCnt, parity);
+ LogTrace(Uart.output,Uart.byteCnt, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, TRUE);
}
rsamples = samples - Demod.samples;
LED_B_ON();
- if(tracing)
- {
- LogTrace(Demod.output,Demod.len, (GetCountSspClk()-time_0) << 4 , Demod.parityBits,FALSE);
- LogTrace(NULL, 0, (GetCountSspClk()-time_0) << 4, 0, FALSE);
+ if(tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(Demod.output, Demod.len, parity);
+ LogTrace(Demod.output, Demod.len, (GetCountSspClk()-time_0) << 4, (GetCountSspClk()-time_0) << 4, parity, FALSE);
}
{
uint8_t mac_responses[64] = { 0 };
- Dbprintf("Going into attack mode");
+ Dbprintf("Going into attack mode, %d CSNS sent", numberOfCSNS);
// In this mode, a number of csns are within datain. We'll simulate each one, one at a time
// in order to collect MAC's from the reader. This can later be used in an offlne-attack
// in order to obtain the keys, as in the "dismantling iclass"-paper.
// The usb data is 512 bytes, fitting 65 8-byte CSNs in there.
memcpy(csn_crc, datain+(i*8), 8);
- if(doIClassSimulation(csn_crc,1,mac_responses))
+ if(doIClassSimulation(csn_crc,1,mac_responses+i*8))
{
return; // Button pressed
}
// + 1720..
uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
- memset(receivedCmd, 0x44, RECV_CMD_SIZE);
+ memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
int len;
// Prepare card messages
//Signal tracer
// Can be used to get a trigger for an oscilloscope..
LED_C_OFF();
-
if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
buttonPressed = true;
break;
respsize = 0;
if (breakAfterMacReceived){
// dbprintf:ing ...
- Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+ Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x"
+ ,csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
Dbprintf("RDR: (len=%02d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",len,
- receivedCmd[0], receivedCmd[1], receivedCmd[2],
+ receivedCmd[0], receivedCmd[1], receivedCmd[2],
receivedCmd[3], receivedCmd[4], receivedCmd[5],
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
if (reader_mac_buf != NULL)
}
if (tracing) {
- LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE);
- LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE);
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(receivedCmd, len, parity);
+ LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, (r2t_time-time_0) << 4, parity, TRUE);
if (respdata != NULL) {
- LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE);
- LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE);
-
-
+ GetParity(respdata, respsize, parity);
+ LogTrace(respdata, respsize, (t2r_time-time_0) << 4, (t2r_time-time_0) << 4, parity, FALSE);
}
if(!tracing) {
DbpString("Trace full");
}
}
- memset(receivedCmd, 0x44, RECV_CMD_SIZE);
+ memset(receivedCmd, 0x44, MAX_FRAME_SIZE);
}
//Dbprintf("%x", cmdsRecvd);
FpgaSetupSsc();
if (wait)
- if(*wait < 10)
- *wait = 10;
+ {
+ if(*wait < 10) *wait = 10;
+
+ for(c = 0; c < *wait;) {
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+ AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing!
+ c++;
+ }
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
+ volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
+ (void)r;
+ }
+ WDT_HIT();
+ }
+
+ }
- for(c = 0; c < *wait;) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
- AT91C_BASE_SSC->SSC_THR = 0x00; // For exact timing!
- c++;
- }
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
- volatile uint32_t r = AT91C_BASE_SSC->SSC_RHR;
- (void)r;
- }
- WDT_HIT();
- }
uint8_t sendbyte;
bool firstpart = TRUE;
void ReaderTransmitIClass(uint8_t* frame, int len)
{
- int wait = 0;
- int samples = 0;
- int par = 0;
-
- // This is tied to other size changes
- // uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024;
- CodeIClassCommand(frame,len);
-
- // Select the card
- TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
- if(trigger)
- LED_A_ON();
-
- // Store reader command in buffer
- if (tracing) LogTrace(frame,len,rsamples,par,TRUE);
+ int wait = 0;
+ int samples = 0;
+
+ // This is tied to other size changes
+ // uint8_t* frame_addr = ((uint8_t*)BigBuf) + 2024;
+ CodeIClassCommand(frame,len);
+
+ // Select the card
+ TransmitIClassCommand(ToSend, ToSendMax, &samples, &wait);
+ if(trigger)
+ LED_A_ON();
+
+ // Store reader command in buffer
+ if (tracing) {
+ uint8_t par[MAX_PARITY_SIZE];
+ GetParity(frame, len, par);
+ LogTrace(frame, len, rsamples, rsamples, par, TRUE);
+ }
}
//-----------------------------------------------------------------------------
int samples = 0;
if (!GetIClassAnswer(receivedAnswer,160,&samples,0)) return FALSE;
rsamples += samples;
- if (tracing) LogTrace(receivedAnswer,Demod.len,rsamples,Demod.parityBits,FALSE);
+ if (tracing) {
+ uint8_t parity[MAX_PARITY_SIZE];
+ GetParity(receivedAnswer, Demod.len, parity);
+ LogTrace(receivedAnswer,Demod.len,rsamples,rsamples,parity,FALSE);
+ }
if(samples == 0) return FALSE;
return Demod.len;
}
-// Reader iClass Anticollission
-void ReaderIClass(uint8_t arg0) {
- uint8_t act_all[] = { 0x0a };
- uint8_t identify[] = { 0x0c };
- uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
-
- uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
-
+void setupIclassReader()
+{
FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
- // Reset trace buffer
+ // Reset trace buffer
iso14a_set_tracing(TRUE);
iso14a_clear_trace();
- // Setup SSC
- FpgaSetupSsc();
- // Start from off (no field generated)
- // Signal field is off with the appropriate LED
- LED_D_OFF();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
+ // Setup SSC
+ FpgaSetupSsc();
+ // Start from off (no field generated)
+ // Signal field is off with the appropriate LED
+ LED_D_OFF();
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ SpinDelay(200);
- SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
+ SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
- // Now give it time to spin up.
- // Signal field is on with the appropriate LED
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
- SpinDelay(200);
+ // Now give it time to spin up.
+ // Signal field is on with the appropriate LED
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+ SpinDelay(200);
+ LED_A_ON();
- LED_A_ON();
+}
- for(;;) {
-
- if(traceLen > TRACE_SIZE) {
- DbpString("Trace full");
- break;
- }
-
- if (BUTTON_PRESS()) break;
+// Reader iClass Anticollission
+void ReaderIClass(uint8_t arg0) {
+ uint8_t act_all[] = { 0x0a };
+ uint8_t identify[] = { 0x0c };
+ uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t readcheck_cc[]= { 0x88, 0x02 };
- // Send act_all
- ReaderTransmitIClass(act_all, 1);
- // Card present?
- if(ReaderReceiveIClass(resp)) {
- ReaderTransmitIClass(identify, 1);
- if(ReaderReceiveIClass(resp) == 10) {
- // Select card
- memcpy(&select[1],resp,8);
- ReaderTransmitIClass(select, sizeof(select));
+ uint8_t card_data[24]={0};
+ uint8_t last_csn[8]={0};
- if(ReaderReceiveIClass(resp) == 10) {
- Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- }
- // Card selected, whats next... ;-)
- }
- }
- WDT_HIT();
- }
+ uint8_t *resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
- LED_A_OFF();
+ int read_status= 0;
+ bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;
+
+ setupIclassReader();
+
+ size_t datasize = 0;
+ while(!BUTTON_PRESS())
+ {
+ WDT_HIT();
+
+ // Send act_all
+ ReaderTransmitIClass(act_all, 1);
+ // Card present?
+ if(ReaderReceiveIClass(resp)) {
+
+ ReaderTransmitIClass(identify, 1);
+
+ if(ReaderReceiveIClass(resp) == 10) {
+ //Copy the Anti-collision CSN to our select-packet
+ memcpy(&select[1],resp,8);
+ //Dbprintf("Anti-collision CSN: %02x %02x %02x %02x %02x %02x %02x %02x",resp[0], resp[1], resp[2],
+ // resp[3], resp[4], resp[5],
+ // resp[6], resp[7]);
+ //Select the card
+ ReaderTransmitIClass(select, sizeof(select));
+
+ if(ReaderReceiveIClass(resp) == 10) {
+ //Save CSN in response data
+ memcpy(card_data,resp,8);
+ datasize += 8;
+ //Flag that we got to at least stage 1, read CSN
+ read_status = 1;
+
+ // Card selected
+ //Dbprintf("Readcheck on Sector 2");
+ ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
+ if(ReaderReceiveIClass(resp) == 8) {
+ //Save CC (e-purse) in response data
+ memcpy(card_data+8,resp,8);
+ datasize += 8;
+ //Got both
+ read_status = 2;
+ }
+
+ LED_B_ON();
+ //Send back to client, but don't bother if we already sent this
+ if(memcmp(last_csn, card_data, 8) != 0)
+ cmd_send(CMD_ACK,read_status,0,0,card_data,datasize);
+
+ //Save that we already sent this....
+ if(read_status == 2)
+ memcpy(last_csn, card_data, 8);
+
+ LED_B_OFF();
+
+ if(abort_after_read) break;
+ }
+ }
+ }
+
+ if(traceLen > TRACE_SIZE) {
+ DbpString("Trace full");
+ break;
+ }
+ }
+ LED_A_OFF();
}
void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {
int keyaccess;
} memory;
- uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
- // Enable and clear the trace
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
-
-
-
- // Setup SSC
- FpgaSetupSsc();
- // Start from off (no field generated)
- // Signal field is off with the appropriate LED
- LED_D_OFF();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
-
- SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
-
- // Now give it time to spin up.
- // Signal field is on with the appropriate LED
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
- SpinDelay(200);
+ uint8_t* resp = (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);
+
+ setupIclassReader();
- LED_A_ON();
for(int i=0;i<1;i++) {
Dbprintf("Authenticate");
//for now replay captured auth (as cc not updated)
memcpy(check+5,MAC,4);
- Dbprintf(" AA: %02x %02x %02x %02x",
- check[5], check[6], check[7],check[8]);
+ //Dbprintf(" AA: %02x %02x %02x %02x",
+ // check[5], check[6], check[7],check[8]);
ReaderTransmitIClass(check, sizeof(check));
if(ReaderReceiveIClass(resp) == 4) {
Dbprintf(" AR: %02x %02x %02x %02x",
LED_A_OFF();
}
-//1. Create Method to Read sectors/blocks 0,1,2 and Send to client
-void IClass_iso14443A_GetPublic(uint8_t arg0) {
- uint8_t act_all[] = { 0x0a };
- uint8_t identify[] = { 0x0c };
- uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
- uint8_t readcheck_cc[]= { 0x88, 0x02 };
-
- uint8_t card_data[24]={0};
- uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
- FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
-
- int read_success= 0;
-
- // Enable and clear the trace
- iso14a_set_tracing(TRUE);
- iso14a_clear_trace();
-
- // Setup SSC
- FpgaSetupSsc();
- // Start from off (no field generated)
- // Signal field is off with the appropriate LED
- LED_D_OFF();
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
-
- SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
-
- // Now give it time to spin up.
- // Signal field is on with the appropriate LED
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
- SpinDelay(200);
-
- LED_A_ON();
-
- // Send act_all
- ReaderTransmitIClass(act_all, 1);
- // Card present?
- if(ReaderReceiveIClass(resp)) {
- ReaderTransmitIClass(identify, 1);
- if(ReaderReceiveIClass(resp) == 10) {
- //Copy the Anti-collision CSN to our select-packet
- memcpy(&select[1],resp,8);
- Dbprintf("Anti-collision CSN: %02x %02x %02x %02x %02x %02x %02x %02x",resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- //Select the card
- ReaderTransmitIClass(select, sizeof(select));
-
- if(ReaderReceiveIClass(resp) == 10) {
- Dbprintf(" Selected CSN: %02x %02x %02x %02x %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- //Save CSN in response data
- memcpy(card_data,resp,8);
- //Flag that we got to at least stage 1, read CSN
- read_success = 1;
-
- // Card selected
- Dbprintf("Readcheck on Sector 2");
- ReaderTransmitIClass(readcheck_cc, sizeof(readcheck_cc));
- if(ReaderReceiveIClass(resp) == 8) {
- Dbprintf(" CC: %02x %02x %02x %02x %02x %02x %02x %02x",
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7]);
- //Save CC (e-purse) in response data
- memcpy(card_data+8,resp,8);
- //Got both
- read_success = 2;
- }
- }
- }
- }
- WDT_HIT();
-
- LED_A_OFF();
- LED_B_ON();
- //Send back to client
- cmd_send(CMD_ACK,read_success,0,0,card_data,16);
- LED_B_OFF();
-}
-
//2. Create Read method (cut-down from above) based off responses from 1.
// Since we have the MAC could continue to use replay function.
//3. Create Write method
uint16_t crc = 0;
- uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+ uint8_t* resp = (((uint8_t *)BigBuf) + 3560);
// Reset trace buffer
memset(trace, 0x44, RECV_CMD_OFFSET);
projects / proxmark3-svn / blobdiff