#include "util.h"
#include "string.h"
#include "common.h"
+#include "cmd.h"
// Needed for CRC in emulation mode;
// same construction as in ISO 14443;
// different initial value (CRC_ICLASS)
#include "iso14443crc.h"
+#include "iso15693tools.h"
static int timeout = 4096;
// The response (tag -> reader) that we're receiving.
uint8_t *tagToReaderResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET);
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+
// reset traceLen to 0
iso14a_set_tracing(TRUE);
iso14a_clear_trace();
// Convert from last byte pos to length
ToSendMax++;
}
-
+int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf);
/**
* @brief SimulateIClass simulates an iClass card.
* @param arg0 type of simulation
{
uint32_t simType = arg0;
uint32_t numberOfCSNS = arg1;
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// Enable and clear the trace
iso14a_set_tracing(TRUE);
iso14a_clear_trace();
uint8_t csn_crc[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 };
-
if(simType == 0) {
// Use the CSN from commandline
memcpy(csn_crc, datain, 8);
- doIClassSimulation(csn_crc,0);
+ doIClassSimulation(csn_crc,0,NULL);
}else if(simType == 1)
{
- doIClassSimulation(csn_crc,0);
+ doIClassSimulation(csn_crc,0,NULL);
}
else if(simType == 2)
{
+
+ uint8_t mac_responses[64] = { 0 };
Dbprintf("Going into attack mode");
// 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.
- for(int i = 0 ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++)
+ int i = 0;
+ for( ; i < numberOfCSNS && i*8+8 < USB_CMD_DATA_SIZE; i++)
{
// 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))
+ if(doIClassSimulation(csn_crc,1,mac_responses))
{
return; // Button pressed
}
}
+ cmd_send(CMD_ACK,CMD_SIMULATE_TAG_ICLASS,i,0,mac_responses,i*8);
+
}
else{
// We may want a mode here where we hardcode the csns to use (from proxclone).
// That will speed things up a little, but not required just yet.
Dbprintf("The mode is not implemented, reserved for future use");
}
+ Dbprintf("Done...");
}
/**
* @param csn - csn to use
* @param breakAfterMacReceived if true, returns after reader MAC has been received.
*/
-int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived)
+int doIClassSimulation(uint8_t csn[], int breakAfterMacReceived, uint8_t *reader_mac_buf)
{
+
// CSN followed by two CRC bytes
uint8_t response2[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8_t response3[] = { 0,0,0,0,0,0,0,0,0,0};
CodeIClassTagAnswer(response4, sizeof(response4));
memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax;
+
+ // Start from off (no field generated)
+ //FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+ //SpinDelay(200);
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
+ SpinDelay(100);
+ StartCountSspClk();
// We need to listen to the high-frequency, peak-detected path.
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaSetupSsc();
uint32_t r2t_time =0;
LED_A_ON();
- bool displayDebug = true;
bool buttonPressed = false;
+
+ /** Hack for testing
+ memcpy(reader_mac_buf,csn,8);
+ exitLoop = true;
+ end hack **/
+
while(!exitLoop) {
- displayDebug = true;
LED_B_OFF();
+ //Signal tracer
+ // Can be used to get a trigger for an oscilloscope..
+ LED_C_OFF();
+
if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) {
buttonPressed = true;
break;
}
r2t_time = GetCountSspClk();
+ //Signal tracer
+ LED_C_ON();
// Okay, look at the command now.
if(receivedCmd[0] == 0x0a ) {
resp = resp1; respLen = resp1Len; //order = 1;
respdata = &sof;
respsize = sizeof(sof);
- displayDebug = false;
} else if(receivedCmd[0] == 0x0c) {
// Reader asks for anticollission CSN
resp = resp2; respLen = resp2Len; //order = 2;
respdata = response2;
respsize = sizeof(response2);
- //displayDebug = false;
//DbpString("Reader requests anticollission CSN:");
} else if(receivedCmd[0] == 0x81) {
// Reader selects anticollission CSN.
} else if(receivedCmd[0] == 0x05) {
// Reader random and reader MAC!!!
// Do not respond
- // We do not know what to answer, so lets keep quit
+ // We do not know what to answer, so lets keep quiet
resp = resp1; respLen = 0; //order = 5;
respdata = NULL;
respsize = 0;
if (breakAfterMacReceived){
- // TODO, actually return this to the caller instead of just
// dbprintf:ing ...
- Dbprintf("CSN: %02x %02x %02x %02x %02x %02x %02x %02x");
+ 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[3], receivedCmd[4], receivedCmd[5],
receivedCmd[6], receivedCmd[7], receivedCmd[8]);
+ if (reader_mac_buf != NULL)
+ {
+ memcpy(reader_mac_buf,receivedCmd+1,8);
+ }
exitLoop = true;
}
} else if(receivedCmd[0] == 0x00 && len == 1) {
if(cmdsRecvd > 100) {
//DbpString("100 commands later...");
- break;
+ //break;
}
else {
cmdsRecvd++;
if(respLen > 0) {
SendIClassAnswer(resp, respLen, 21);
t2r_time = GetCountSspClk();
-
-// }
- if(displayDebug) Dbprintf("R2T:(len=%d): %x %x %x %x %x %x %x %x %x\nT2R: (total/data =%d/%d): %x %x %x %x %x %x %x %x %x",
- len,
- receivedCmd[0], receivedCmd[1], receivedCmd[2],
- receivedCmd[3], receivedCmd[4], receivedCmd[5],
- receivedCmd[6], receivedCmd[7], receivedCmd[8],
- respLen,respsize,
- resp[0], resp[1], resp[2],
- resp[3], resp[4], resp[5],
- resp[6], resp[7], resp[8]);
-
}
if (tracing) {
- //LogTrace(receivedCmd,len, rsamples, Uart.parityBits, TRUE);
-
LogTrace(receivedCmd,len, (r2t_time-time_0)<< 4, Uart.parityBits,TRUE);
LogTrace(NULL,0, (r2t_time-time_0) << 4, 0,TRUE);
if (respdata != NULL) {
- //LogTrace(respdata,respsize, rsamples, SwapBits(GetParity(respdata,respsize),respsize), FALSE);
- //if(!LogTrace(resp,respLen, rsamples,SwapBits(GetParity(respdata,respsize),respsize),FALSE))
LogTrace(respdata,respsize, (t2r_time-time_0) << 4,SwapBits(GetParity(respdata,respsize),respsize),FALSE);
LogTrace(NULL,0, (t2r_time-time_0) << 4,0,FALSE);
memset(receivedCmd, 0x44, RECV_CMD_SIZE);
}
- Dbprintf("%x", cmdsRecvd);
+ //Dbprintf("%x", cmdsRecvd);
LED_A_OFF();
LED_B_OFF();
if(buttonPressed)
static int SendIClassAnswer(uint8_t *resp, int respLen, int delay)
{
- int i = 0, u = 0, d = 0;
+ int i = 0, d=0;//, u = 0, d = 0;
uint8_t b = 0;
- // return 0;
- // Modulate Manchester
- // FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD424);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
+
+ FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SIMULATOR|FPGA_HF_SIMULATOR_MODULATE_424K);
+
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
-
- // send cycle
- for(;;) {
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
- volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
- (void)b;
+ while(!BUTTON_PRESS()) {
+ if((AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)){
+ b = AT91C_BASE_SSC->SSC_RHR; (void) b;
}
- if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
+ if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)){
+ b = 0x00;
if(d < delay) {
- b = 0x00;
d++;
}
- else if(i >= respLen) {
- b = 0x00;
- u++;
- } else {
- b = resp[i];
- u++;
- if(u > 1) { i++; u = 0; }
+ else {
+ if( i < respLen){
+ b = resp[i];
+ //Hack
+ //b = 0xAC;
+ }
+ i++;
}
AT91C_BASE_SSC->SSC_THR = b;
-
- if(u > 4) break;
- }
- if(BUTTON_PRESS()) {
- break;
}
+
+ if (i > respLen +4) break;
}
return 0;
static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int *wait)
{
int c;
-
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
AT91C_BASE_SSC->SSC_THR = 0x00;
FpgaSetupSsc();
b = cmd[i];
for(j = 0; j < 4; j++) {
for(k = 0; k < 4; k++) {
- if(k == (b & 3)) {
- ToSend[++ToSendMax] = 0x0f;
- }
- else {
- ToSend[++ToSendMax] = 0x00;
- }
+ if(k == (b & 3)) {
+ ToSend[++ToSendMax] = 0x0f;
+ }
+ else {
+ ToSend[++ToSendMax] = 0x00;
+ }
}
b >>= 2;
}
return Demod.len;
}
+void setupIclassReader()
+{
+ FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
+ // 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);
+
+ 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();
+
+}
+
// 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 };
+
+ uint8_t card_data[24]={0};
+ uint8_t last_csn[8]={0};
+
+ uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+
+ 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) {
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 check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
+
+ uint16_t crc = 0;
+ uint8_t cardsize=0;
+ bool read_success=false;
+ uint8_t mem=0;
+
+ static struct memory_t{
+ int k16;
+ int book;
+ int k2;
+ int lockauth;
+ int keyaccess;
+ } memory;
+
+ uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+
+ setupIclassReader();
+
+
+ for(int i=0;i<1;i++) {
+
+ if(traceLen > TRACE_SIZE) {
+ DbpString("Trace full");
+ break;
+ }
+
+ if (BUTTON_PRESS()) break;
+
+ // 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));
+
+ 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
+ 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]);
+ }else return;
+ 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]);
+ ReaderTransmitIClass(check, sizeof(check));
+ if(ReaderReceiveIClass(resp) == 4) {
+ Dbprintf(" AR: %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],resp[3]);
+ }else {
+ Dbprintf("Error: Authentication Fail!");
+ return;
+ }
+ Dbprintf("Dump Contents");
+ //first get configuration block
+ read_success=false;
+ read[1]=1;
+ uint8_t *blockno=&read[1];
+ crc = iclass_crc16((char *)blockno,1);
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+ while(!read_success){
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 10) {
+ read_success=true;
+ mem=resp[5];
+ memory.k16= (mem & 0x80);
+ memory.book= (mem & 0x20);
+ memory.k2= (mem & 0x8);
+ memory.lockauth= (mem & 0x2);
+ memory.keyaccess= (mem & 0x1);
+
+ }
+ }
+ if (memory.k16){
+ cardsize=255;
+ }else cardsize=32;
+ //then loop around remaining blocks
+ for(uint8_t j=0; j<cardsize; j++){
+ read_success=false;
+ uint8_t *blockno=&j;
+ //crc_data[0]=j;
+ read[1]=j;
+ crc = iclass_crc16((char *)blockno,1);
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+ while(!read_success){
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 10) {
+ read_success=true;
+ Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x",
+ j, resp[0], resp[1], resp[2],
+ resp[3], resp[4], resp[5],
+ resp[6], resp[7]);
+ }
+ }
+ }
+ }
+ }
+ WDT_HIT();
+ }
+
+ LED_A_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
+/*
+void IClass_iso14443A_write(uint8_t arg0, uint8_t blockNo, uint8_t *data, uint8_t *MAC) {
+ 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 check[] = { 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ uint8_t read[] = { 0x0c, 0x00, 0x00, 0x00 };
+ uint8_t write[] = { 0x87, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+ uint16_t crc = 0;
+
uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
// Reset trace buffer
- memset(trace, 0x44, RECV_CMD_OFFSET);
+ memset(trace, 0x44, RECV_CMD_OFFSET);
traceLen = 0;
// Setup SSC
LED_A_ON();
- for(;;) {
+ for(int i=0;i<1;i++) {
if(traceLen > TRACE_SIZE) {
DbpString("Trace full");
resp[3], resp[4], resp[5],
resp[6], resp[7]);
}
- // Card selected, whats next... ;-)
- }
+ // 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]);
+ }else return;
+ 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]);
+ ReaderTransmitIClass(check, sizeof(check));
+ if(ReaderReceiveIClass(resp) == 4) {
+ Dbprintf(" AR: %02x %02x %02x %02x",
+ resp[0], resp[1], resp[2],resp[3]);
+ }else {
+ Dbprintf("Error: Authentication Fail!");
+ return;
+ }
+ Dbprintf("Write Block");
+
+ //read configuration for max block number
+ read_success=false;
+ read[1]=1;
+ uint8_t *blockno=&read[1];
+ crc = iclass_crc16((char *)blockno,1);
+ read[2] = crc >> 8;
+ read[3] = crc & 0xff;
+ while(!read_success){
+ ReaderTransmitIClass(read, sizeof(read));
+ if(ReaderReceiveIClass(resp) == 10) {
+ read_success=true;
+ mem=resp[5];
+ memory.k16= (mem & 0x80);
+ memory.book= (mem & 0x20);
+ memory.k2= (mem & 0x8);
+ memory.lockauth= (mem & 0x2);
+ memory.keyaccess= (mem & 0x1);
+
+ }
+ }
+ if (memory.k16){
+ cardsize=255;
+ }else cardsize=32;
+ //check card_size
+
+ memcpy(write+1,blockNo,1);
+ memcpy(write+2,data,8);
+ memcpy(write+10,mac,4);
+ while(!send_success){
+ ReaderTransmitIClass(write, sizeof(write));
+ if(ReaderReceiveIClass(resp) == 10) {
+ write_success=true;
+ }
+ }//
}
WDT_HIT();
}
LED_A_OFF();
-}
-
-
+}*/
projects / proxmark3-svn / blobdiff