git.zerfleddert.de Git - proxmark3-svn/blobdiff

index a976217d4e70f8e792dbb6a9e43d1cd3ff82fd37..eb5a5a7969f98a7dd96d94832b5087ceb9148ed2 100644 (file)

--- a/armsrc/iclass.c

+++ b/armsrc/iclass.c

@@ -47,8 +47,9 @@

// different initial value (CRC_ICLASS)

#include "iso14443crc.h"

#include "iso15693tools.h"

// different initial value (CRC_ICLASS)

#include "iso14443crc.h"

#include "iso15693tools.h"

-#include "cipher.h"

#include "protocols.h"

+#include "optimized_cipher.h"

static int timeout = 4096;

@@ -1041,6 +1042,10 @@ void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain

Dbprintf("Done...");

}

Dbprintf("Done...");

}

+void AppendCrc(uint8_t* data, int len)

+ ComputeCrc14443(CRC_ICLASS,data,len,data+len,data+len+1);

/**

* @brief Does the actual simulation

/**

* @brief Does the actual simulation

@@ -1052,6 +1057,8 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

// free eventually allocated BigBuf memory

BigBuf_free_keep_EM();

// free eventually allocated BigBuf memory

BigBuf_free_keep_EM();

+ State cipher_state;

+// State cipher_state_reserve;

uint8_t *csn = BigBuf_get_EM_addr();

uint8_t *emulator = csn;

uint8_t sof_data[] = { 0x0F} ;

uint8_t *csn = BigBuf_get_EM_addr();

uint8_t *emulator = csn;

uint8_t sof_data[] = { 0x0F} ;

@@ -1068,12 +1075,20 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

ComputeCrc14443(CRC_ICLASS, anticoll_data, 8, &anticoll_data[8], &anticoll_data[9]);

ComputeCrc14443(CRC_ICLASS, csn_data, 8, &csn_data[8], &csn_data[9]);

ComputeCrc14443(CRC_ICLASS, anticoll_data, 8, &anticoll_data[8], &anticoll_data[9]);

ComputeCrc14443(CRC_ICLASS, csn_data, 8, &csn_data[8], &csn_data[9]);

+ uint8_t diversified_key[8] = { 0 };

// e-Purse

uint8_t card_challenge_data[8] = { 0x00 };

if(simulationMode == MODE_FULLSIM)

{

// e-Purse

uint8_t card_challenge_data[8] = { 0x00 };

if(simulationMode == MODE_FULLSIM)

{

+ //The diversified key should be stored on block 3

+ //Get the diversified key from emulator memory

+ memcpy(diversified_key, emulator+(8*3),8);

//Card challenge, a.k.a e-purse is on block 2

memcpy(card_challenge_data,emulator + (8 * 2) , 8);

//Card challenge, a.k.a e-purse is on block 2

memcpy(card_challenge_data,emulator + (8 * 2) , 8);

+ //Precalculate the cipher state, feeding it the CC

+ cipher_state = opt_doTagMAC_1(card_challenge_data,diversified_key);

}

int exitLoop = 0;

}

int exitLoop = 0;

@@ -1085,7 +1100,7 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

// Tag CSN

uint8_t *modulated_response;

// Tag CSN

uint8_t *modulated_response;

- int modulated_response_size;

+ int modulated_response_size = 0;

uint8_t* trace_data = NULL;

int trace_data_size = 0;

uint8_t* trace_data = NULL;

int trace_data_size = 0;

@@ -1110,7 +1125,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

int resp_cc_len;

uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);

int resp_cc_len;

uint8_t *receivedCmd = BigBuf_malloc(MAX_FRAME_SIZE);

- memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

int len;

// Prepare card messages

int len;

// Prepare card messages

@@ -1132,8 +1146,12 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

CodeIClassTagAnswer(card_challenge_data, sizeof(card_challenge_data));

memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax;

CodeIClassTagAnswer(card_challenge_data, sizeof(card_challenge_data));

memcpy(resp_cc, ToSend, ToSendMax); resp_cc_len = ToSendMax;

- //This is used for responding to READ-block commands

- uint8_t *data_response = BigBuf_malloc(8 * 2 + 2);

+ //This is used for responding to READ-block commands or other data which is dynamically generated

+ //First the 'trace'-data, not encoded for FPGA

+ uint8_t *data_generic_trace = BigBuf_malloc(8 + 2);//8 bytes data + 2byte CRC is max tag answer

+ //Then storage for the modulated data

+ //Each bit is doubled when modulated for FPGA, and we also have SOF and EOF (2 bytes)

+ uint8_t *data_response = BigBuf_malloc( (8+2) * 2 + 2);

// Start from off (no field generated)

//FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

// Start from off (no field generated)

//FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

@@ -1153,9 +1171,9 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

LED_A_ON();

bool buttonPressed = false;

LED_A_ON();

bool buttonPressed = false;

+ uint8_t response_delay = 1;

while(!exitLoop) {

+ response_delay = 1;

LED_B_OFF();

//Signal tracer

// Can be used to get a trigger for an oscilloscope..

LED_B_OFF();

//Signal tracer

// Can be used to get a trigger for an oscilloscope..

@@ -1197,25 +1215,18 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

} else if(receivedCmd[0] == ICLASS_CMD_CHECK) {

// Reader random and reader MAC!!!

if(simulationMode == MODE_FULLSIM)

} else if(receivedCmd[0] == ICLASS_CMD_CHECK) {

// Reader random and reader MAC!!!

if(simulationMode == MODE_FULLSIM)

- { //This is what we must do..

- //Reader just sent us NR and MAC(k,cc * nr)

- //The diversified key should be stored on block 3

- //However, from a typical dump, the key will not be there

- uint8_t *diversified_key = { 0 };

- //Get the diversified key from emulator memory

- memcpy(diversified_key, emulator+(8*3),8);

- uint8_t ccnr[12] = { 0 };

- //Put our cc there (block 2)

- memcpy(ccnr, emulator + (8 * 2), 8);

- //Put nr there

- memcpy(ccnr+8, receivedCmd+1,4);

- //Now, calc MAC

- doMAC(ccnr,diversified_key, trace_data);

+ {

+ //NR, from reader, is in receivedCmd +1

+ opt_doTagMAC_2(cipher_state,receivedCmd+1,data_generic_trace,diversified_key);

+ trace_data = data_generic_trace;

trace_data_size = 4;

CodeIClassTagAnswer(trace_data , trace_data_size);

memcpy(data_response, ToSend, ToSendMax);

modulated_response = data_response;

modulated_response_size = ToSendMax;

trace_data_size = 4;

CodeIClassTagAnswer(trace_data , trace_data_size);

memcpy(data_response, ToSend, ToSendMax);

modulated_response = data_response;

modulated_response_size = ToSendMax;

+ response_delay = 0;//We need to hurry here...

+ //exitLoop = true;

}else

{ //Not fullsim, we don't respond

// We do not know what to answer, so lets keep quiet

}else

{ //Not fullsim, we don't respond

// We do not know what to answer, so lets keep quiet

@@ -1246,13 +1257,40 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

} else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){

//Read block

uint16_t blk = receivedCmd[1];

} else if(simulationMode == MODE_FULLSIM && receivedCmd[0] == ICLASS_CMD_READ_OR_IDENTIFY && len == 4){

//Read block

uint16_t blk = receivedCmd[1];

- trace_data = emulator+(blk << 3);

- trace_data_size = 8;

+ //Take the data...

+ memcpy(data_generic_trace, emulator+(blk << 3),8);

+ //Add crc

+ AppendCrc(data_generic_trace, 8);

+ trace_data = data_generic_trace;

+ trace_data_size = 10;

+ CodeIClassTagAnswer(trace_data , trace_data_size);

+ memcpy(data_response, ToSend, ToSendMax);

+ modulated_response = data_response;

+ modulated_response_size = ToSendMax;

+ }else if(receivedCmd[0] == ICLASS_CMD_UPDATE && simulationMode == MODE_FULLSIM)

+ {//Probably the reader wants to update the nonce. Let's just ignore that for now.

+ // OBS! If this is implemented, don't forget to regenerate the cipher_state

+ //We're expected to respond with the data+crc, exactly what's already in the receivedcmd

+ //receivedcmd is now UPDATE 1b | ADDRESS 1b| DATA 8b| Signature 4b or CRC 2b|

+ //Take the data...

+ memcpy(data_generic_trace, receivedCmd+2,8);

+ //Add crc

+ AppendCrc(data_generic_trace, 8);

+ trace_data = data_generic_trace;

+ trace_data_size = 10;

CodeIClassTagAnswer(trace_data , trace_data_size);

memcpy(data_response, ToSend, ToSendMax);

modulated_response = data_response;

modulated_response_size = ToSendMax;

}

CodeIClassTagAnswer(trace_data , trace_data_size);

memcpy(data_response, ToSend, ToSendMax);

modulated_response = data_response;

modulated_response_size = ToSendMax;

}

+ else if(receivedCmd[0] == ICLASS_CMD_PAGESEL)

+ {//Pagesel

+ //Pagesel enables to select a page in the selected chip memory and return its configuration block

+ //Chips with a single page will not answer to this command

+ // It appears we're fine ignoring this.

+ //Otherwise, we should answer 8bytes (block) + 2bytes CRC

+ }

else {

//#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44

// Never seen this command before

else {

//#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44

// Never seen this command before

@@ -1278,7 +1316,7 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

A legit tag has about 380us delay between reader EOT and tag SOF.

**/

if(modulated_response_size > 0) {

A legit tag has about 380us delay between reader EOT and tag SOF.

**/

if(modulated_response_size > 0) {

- SendIClassAnswer(modulated_response, modulated_response_size, 1);

+ SendIClassAnswer(modulated_response, modulated_response_size, response_delay);

t2r_time = GetCountSspClk();

}

t2r_time = GetCountSspClk();

}

@@ -1297,7 +1335,6 @@ int doIClassSimulation( int simulationMode, uint8_t *reader_mac_buf)

}

- memset(receivedCmd, 0x44, MAX_FRAME_SIZE);

}

//Dbprintf("%x", cmdsRecvd);

}

//Dbprintf("%x", cmdsRecvd);

@@ -1410,7 +1447,7 @@ static void TransmitIClassCommand(const uint8_t *cmd, int len, int *samples, int

}

WDT_HIT();

}

WDT_HIT();

}

- if (samples) *samples = (c + *wait) << 3;

+ if (samples && wait) *samples = (c + *wait) << 3;

}

@@ -1436,7 +1473,7 @@ void CodeIClassCommand(const uint8_t * cmd, int len)

for(j = 0; j < 4; j++) {

for(k = 0; k < 4; k++) {

if(k == (b & 3)) {

for(j = 0; j < 4; j++) {

for(k = 0; k < 4; k++) {

if(k == (b & 3)) {

- ToSend[++ToSendMax] = 0x0f;

+ ToSend[++ToSendMax] = 0xf0;

}

else {

ToSend[++ToSendMax] = 0x00;

}

else {

ToSend[++ToSendMax] = 0x00;

@@ -1543,8 +1580,8 @@ void setupIclassReader()

{

FpgaDownloadAndGo(FPGA_BITSTREAM_HF);

// Reset trace buffer

{

FpgaDownloadAndGo(FPGA_BITSTREAM_HF);

// Reset trace buffer

- set_tracing(TRUE);

- clear_trace();

+ set_tracing(TRUE);

+ clear_trace();

// Setup SSC

FpgaSetupSsc();

// Setup SSC

FpgaSetupSsc();

@@ -1564,16 +1601,16 @@ void setupIclassReader()

}

-size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)

+bool sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t* resp, uint8_t expected_size, uint8_t retries)

{

while(retries-- > 0)

{

ReaderTransmitIClass(command, cmdsize);

if(expected_size == ReaderReceiveIClass(resp)){

{

while(retries-- > 0)

{

ReaderTransmitIClass(command, cmdsize);

if(expected_size == ReaderReceiveIClass(resp)){

- return 0;

+ return true;

}

- return 1;//Error

+ return false;//Error

}

/**

}

/**

@@ -1583,12 +1620,18 @@ size_t sendCmdGetResponseWithRetries(uint8_t* command, size_t cmdsize, uint8_t*

* 1 = Got CSN

* 2 = Got CSN and CC

* 1 = Got CSN

* 2 = Got CSN and CC

-uint8_t handshakeIclassTag(uint8_t *card_data)

+uint8_t handshakeIclassTag_ext(uint8_t *card_data, bool use_credit_key)

{

static uint8_t act_all[] = { 0x0a };

{

static uint8_t act_all[] = { 0x0a };

- static uint8_t identify[] = { 0x0c };

+ //static uint8_t identify[] = { 0x0c };

+ static uint8_t identify[] = { 0x0c, 0x00, 0x73, 0x33 };

static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

static uint8_t readcheck_cc[]= { 0x88, 0x02 };

static uint8_t select[] = { 0x81, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

static uint8_t readcheck_cc[]= { 0x88, 0x02 };

+ if (use_credit_key)

+ readcheck_cc[0] = 0x18;

+ else

+ readcheck_cc[0] = 0x88;

uint8_t resp[ICLASS_BUFFER_SIZE];

uint8_t read_status = 0;

uint8_t resp[ICLASS_BUFFER_SIZE];

uint8_t read_status = 0;

@@ -1623,48 +1666,85 @@ uint8_t handshakeIclassTag(uint8_t *card_data)

if(ReaderReceiveIClass(resp) == 8) {

//Save CC (e-purse) in response data

memcpy(card_data+8,resp,8);

if(ReaderReceiveIClass(resp) == 8) {

//Save CC (e-purse) in response data

memcpy(card_data+8,resp,8);

- //Got both

- read_status = 2;

+ read_status++;

}

return read_status;

}

return read_status;

}

+uint8_t handshakeIclassTag(uint8_t *card_data) {

+ return handshakeIclassTag_ext(card_data, false);

// Reader iClass Anticollission

void ReaderIClass(uint8_t arg0) {

// Reader iClass Anticollission

void ReaderIClass(uint8_t arg0) {

- uint8_t card_data[24]={0};

- uint8_t last_csn[8]={0};

+ uint8_t card_data[6 * 8]={0};

+ memset(card_data, 0xFF, sizeof(card_data));

+ uint8_t last_csn[8]={0};

- int read_status= 0;

- bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;

- bool get_cc = arg0 & FLAG_ICLASS_READER_GET_CC;

+ //Read conf block CRC(0x01) => 0xfa 0x22

+ uint8_t readConf[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x01, 0xfa, 0x22};

+ //Read conf block CRC(0x05) => 0xde 0x64

+ uint8_t readAA[] = { ICLASS_CMD_READ_OR_IDENTIFY,0x05, 0xde, 0x64};

+ int read_status= 0;

+ uint8_t result_status = 0;

+ bool abort_after_read = arg0 & FLAG_ICLASS_READER_ONLY_ONCE;

+ bool try_once = arg0 & FLAG_ICLASS_READER_ONE_TRY;

+ bool use_credit_key = false;

+ if (arg0 & FLAG_ICLASS_READER_CEDITKEY)

+ use_credit_key = true;

set_tracing(TRUE);

- setupIclassReader();

- size_t datasize = 0;

- while(!BUTTON_PRESS())

- {

+ setupIclassReader();

+ uint16_t tryCnt=0;

+ while(!BUTTON_PRESS())

+ {

+ if (try_once && tryCnt > 5) break;

+ tryCnt++;

if(!tracing) {

DbpString("Trace full");

break;

}

WDT_HIT();

if(!tracing) {

DbpString("Trace full");

break;

}

WDT_HIT();

- read_status = handshakeIclassTag(card_data);

+ read_status = handshakeIclassTag_ext(card_data, use_credit_key);

if(read_status == 0) continue;

- if(read_status == 1) datasize = 8;

- if(read_status == 2) datasize = 16;

+ if(read_status == 1) result_status = FLAG_ICLASS_READER_CSN;

+ if(read_status == 2) result_status = FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CC;

+ // handshakeIclass returns CSN|CC, but the actual block

+ // layout is CSN|CONFIG|CC, so here we reorder the data,

+ // moving CC forward 8 bytes

+ memcpy(card_data+16,card_data+8, 8);

+ //Read block 1, config

+ if(arg0 & FLAG_ICLASS_READER_CONF)

+ {

+ if(sendCmdGetResponseWithRetries(readConf, sizeof(readConf),card_data+8, 10, 10))

+ {

+ result_status |= FLAG_ICLASS_READER_CONF;

+ } else {

+ Dbprintf("Failed to dump config block");

+ }

- //Todo, read the public blocks 1,5 aswell:

- //

- // 0 : CSN (we already have)

+ //Read block 5, AA

+ if(arg0 & FLAG_ICLASS_READER_AA){

+ if(sendCmdGetResponseWithRetries(readAA, sizeof(readAA),card_data+(8*4), 10, 10))

+ {

+ result_status |= FLAG_ICLASS_READER_AA;

+ } else {

+ //Dbprintf("Failed to dump AA block");

+ }

+ // 0 : CSN

// 1 : Configuration

- // 2 : e-purse (we already have)

- // (3,4 write-only)

+ // 2 : e-purse

+ // (3,4 write-only, kc and kd)

// 5 Application issuer area

//Then we can 'ship' back the 8 * 5 bytes of data,

// 5 Application issuer area

//Then we can 'ship' back the 8 * 5 bytes of data,

@@ -1674,10 +1754,10 @@ void ReaderIClass(uint8_t arg0) {

//Send back to client, but don't bother if we already sent this

if(memcmp(last_csn, card_data, 8) != 0)

{

//Send back to client, but don't bother if we already sent this

if(memcmp(last_csn, card_data, 8) != 0)

{

- if(!get_cc || (get_cc && read_status == 2))

+ // If caller requires that we get CC, continue until we got it

+ if( (arg0 & read_status & FLAG_ICLASS_READER_CC) || !(arg0 & FLAG_ICLASS_READER_CC))

{

- cmd_send(CMD_ACK,read_status,0,0,card_data,datasize);

+ cmd_send(CMD_ACK,result_status,0,0,card_data,sizeof(card_data));

if(abort_after_read) {

LED_A_OFF();

return;

if(abort_after_read) {

LED_A_OFF();

return;

@@ -1685,12 +1765,12 @@ void ReaderIClass(uint8_t arg0) {

//Save that we already sent this....

memcpy(last_csn, card_data, 8);

}

//Save that we already sent this....

memcpy(last_csn, card_data, 8);

}

- //If 'get_cc' was specified and we didn't get a CC, we'll just keep trying...

}

LED_B_OFF();

}

LED_B_OFF();

- }

- cmd_send(CMD_ACK,0,0,0,card_data, 0);

- LED_A_OFF();

+ }

+ cmd_send(CMD_ACK,0,0,0,card_data, 0);

+ LED_A_OFF();

}

void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

}

void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

@@ -1741,7 +1821,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

//for now replay captured auth (as cc not updated)

memcpy(check+5,MAC,4);

//for now replay captured auth (as cc not updated)

memcpy(check+5,MAC,4);

- if(sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))

+ if(!sendCmdGetResponseWithRetries(check, sizeof(check),resp, 4, 5))

{

Dbprintf("Error: Authentication Fail!");

continue;

{

Dbprintf("Error: Authentication Fail!");

continue;

@@ -1753,7 +1833,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

read[2] = crc >> 8;

read[3] = crc & 0xff;

read[2] = crc >> 8;

read[3] = crc & 0xff;

- if(sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))

+ if(!sendCmdGetResponseWithRetries(read, sizeof(read),resp, 10, 10))

{

Dbprintf("Dump config (block 1) failed");

continue;

{

Dbprintf("Dump config (block 1) failed");

continue;

@@ -1780,7 +1860,7 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

read[2] = crc >> 8;

read[3] = crc & 0xff;

read[2] = crc >> 8;

read[3] = crc & 0xff;

- if(!sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))

+ if(sendCmdGetResponseWithRetries(read, sizeof(read), resp, 10, 10))

{

Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x",

block, resp[0], resp[1], resp[2],

{

Dbprintf(" %02x: %02x %02x %02x %02x %02x %02x %02x %02x",

block, resp[0], resp[1], resp[2],

@@ -1831,130 +1911,137 @@ void ReaderIClass_Replay(uint8_t arg0, uint8_t *MAC) {

LED_A_OFF();

}

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);

- // Reset trace buffer

- memset(trace, 0x44, RECV_CMD_OFFSET);

- traceLen = 0;

+void iClass_ReadCheck(uint8_t blockNo, uint8_t keyType) {

+ uint8_t readcheck[] = { keyType, blockNo };

+ uint8_t resp[] = {0,0,0,0,0,0,0,0};

+ size_t isOK = 0;

+ isOK = sendCmdGetResponseWithRetries(readcheck, sizeof(readcheck), resp, sizeof(resp), 6);

+ cmd_send(CMD_ACK,isOK,0,0,0,0);

- // 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);

+void iClass_Authentication(uint8_t *MAC) {

+ uint8_t check[] = { ICLASS_CMD_CHECK, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

+ uint8_t resp[ICLASS_BUFFER_SIZE];

+ memcpy(check+5,MAC,4);

+ bool isOK;

+ isOK = sendCmdGetResponseWithRetries(check, sizeof(check), resp, 4, 6);

+ cmd_send(CMD_ACK,isOK,0,0,0,0);

+bool iClass_ReadBlock(uint8_t blockNo, uint8_t *readdata) {

+ uint8_t readcmd[] = {ICLASS_CMD_READ_OR_IDENTIFY, blockNo, 0x00, 0x00}; //0x88, 0x00 // can i use 0C?

+ char bl = blockNo;

+ uint16_t rdCrc = iclass_crc16(&bl, 1);

+ readcmd[2] = rdCrc >> 8;

+ readcmd[3] = rdCrc & 0xff;

+ uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};

+ bool isOK = false;

+ //readcmd[1] = blockNo;

+ isOK = sendCmdGetResponseWithRetries(readcmd, sizeof(readcmd), resp, 10, 10);

+ memcpy(readdata, resp, sizeof(resp));

+ return isOK;

- SetAdcMuxFor(GPIO_MUXSEL_HIPKD);

+void iClass_ReadBlk(uint8_t blockno) {

+ uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};

+ bool isOK = false;

+ isOK = iClass_ReadBlock(blockno, readblockdata);

+ cmd_send(CMD_ACK, isOK, 0, 0, readblockdata, 8);

- // 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);

+void iClass_Dump(uint8_t blockno, uint8_t numblks) {

+ uint8_t readblockdata[] = {0,0,0,0,0,0,0,0,0,0};

+ bool isOK = false;

+ uint8_t blkCnt = 0;

- LED_A_ON();

+ BigBuf_free();

+ uint8_t *dataout = BigBuf_malloc(255*8);

+ if (dataout == NULL){

+ Dbprintf("out of memory");

+ OnError(1);

+ return;

+ }

+ memset(dataout,0xFF,255*8);

+ for (;blkCnt < numblks; blkCnt++) {

+ isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);

+ if (!isOK || (readblockdata[0] == 0xBB || readblockdata[7] == 0xBB || readblockdata[2] == 0xBB)) { //try again

+ isOK = iClass_ReadBlock(blockno+blkCnt, readblockdata);

+ if (!isOK) {

+ Dbprintf("Block %02X failed to read", blkCnt+blockno);

+ break;

+ }

+ memcpy(dataout+(blkCnt*8),readblockdata,8);

+ }

+ //return pointer to dump memory in arg3

+ cmd_send(CMD_ACK,isOK,blkCnt,BigBuf_max_traceLen(),0,0);

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

+ LEDsoff();

+ BigBuf_free();

- for(int i=0;i<1;i++) {

- if(traceLen > TRACE_SIZE) {

- DbpString("Trace full");

- break;

+bool iClass_WriteBlock_ext(uint8_t blockNo, uint8_t *data) {

+ uint8_t write[] = { ICLASS_CMD_UPDATE, blockNo, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };

+ //uint8_t readblockdata[10];

+ //write[1] = blockNo;

+ memcpy(write+2, data, 12); // data + mac

+ char *wrCmd = (char *)(write+1);

+ uint16_t wrCrc = iclass_crc16(wrCmd, 13);

+ write[14] = wrCrc >> 8;

+ write[15] = wrCrc & 0xff;

+ uint8_t resp[] = {0,0,0,0,0,0,0,0,0,0};

+ bool isOK = false;

+ isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);

+ if (isOK) { //if reader responded correctly

+ //Dbprintf("WriteResp: %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",resp[0],resp[1],resp[2],resp[3],resp[4],resp[5],resp[6],resp[7],resp[8],resp[9]);

+ if (memcmp(write+2,resp,8)) { //if response is not equal to write values

+ if (blockNo != 3 && blockNo != 4) { //if not programming key areas (note key blocks don't get programmed with actual key data it is xor data)

+ //error try again

+ isOK = sendCmdGetResponseWithRetries(write,sizeof(write),resp,sizeof(resp),10);

+ }

}

- 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("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;

- }

- }//

+ }

+ return isOK;

+void iClass_WriteBlock(uint8_t blockNo, uint8_t *data) {

+ bool isOK = iClass_WriteBlock_ext(blockNo, data);

+ if (isOK){

+ Dbprintf("Write block [%02x] successful",blockNo);

+ } else {

+ Dbprintf("Write block [%02x] failed",blockNo);

+ }

+ cmd_send(CMD_ACK,isOK,0,0,0,0);

+void iClass_Clone(uint8_t startblock, uint8_t endblock, uint8_t *data) {

+ int i;

+ int written = 0;

+ int total_block = (endblock - startblock) + 1;

+ for (i = 0; i < total_block;i++){

+ // block number

+ if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){

+ Dbprintf("Write block [%02x] successful",i + startblock);

+ written++;

+ } else {

+ if (iClass_WriteBlock_ext(i+startblock, data+(i*12))){

+ Dbprintf("Write block [%02x] successful",i + startblock);

+ written++;

+ } else {

+ Dbprintf("Write block [%02x] failed",i + startblock);

+ }

}

- WDT_HIT();

}

- LED_A_OFF();

-}*/

+ if (written == total_block)

+ Dbprintf("Clone complete");

+ else

+ Dbprintf("Clone incomplete");

+ cmd_send(CMD_ACK,1,0,0,0,0);

+ FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);

+ LEDsoff();