X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/17cba2693d87d80b98a20ad8c2774155fa55d3fa..c936a22f1921f5dd8ebf49a8d1a0fab60337dd31:/armsrc/iclass.c diff --git a/armsrc/iclass.c b/armsrc/iclass.c index 42fed888..4d005dbc 100644 --- a/armsrc/iclass.c +++ b/armsrc/iclass.c @@ -41,10 +41,12 @@ #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; @@ -666,7 +668,12 @@ static RAMFUNC int ManchesterDecoding(int v) //----------------------------------------------------------------------------- void RAMFUNC SnoopIClass(void) { - +// DEFINED ABOVE +// #define RECV_CMD_OFFSET 3032 +// #define RECV_RES_OFFSET 3096 +// #define DMA_BUFFER_OFFSET 3160 +// #define DMA_BUFFER_SIZE 4096 +// #define TRACE_SIZE 3000 // We won't start recording the frames that we acquire until we trigger; // a good trigger condition to get started is probably when we see a @@ -676,10 +683,14 @@ void RAMFUNC SnoopIClass(void) // The command (reader -> tag) that we're receiving. // The length of a received command will in most cases be no more than 18 bytes. // So 32 should be enough! - uint8_t *readerToTagCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); + uint8_t *receivedCmd = (((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 *receivedResponse = (((uint8_t *)BigBuf) + RECV_RES_OFFSET); + // 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; + // reset traceLen to 0 iso14a_set_tracing(TRUE); iso14a_clear_trace(); @@ -700,7 +711,7 @@ void RAMFUNC SnoopIClass(void) memset(trace, 0x44, RECV_CMD_OFFSET); // Set up the demodulator for tag -> reader responses. - Demod.output = tagToReaderResponse; + Demod.output = receivedResponse; Demod.len = 0; Demod.state = DEMOD_UNSYNCD; @@ -712,7 +723,7 @@ void RAMFUNC SnoopIClass(void) // And the reader -> tag commands memset(&Uart, 0, sizeof(Uart)); - Uart.output = readerToTagCmd; + Uart.output = receivedCmd; Uart.byteCntMax = 32; // was 100 (greg)//////////////////////////////////////////////////////////////////////// Uart.state = STATE_UNSYNCD; @@ -755,13 +766,20 @@ void RAMFUNC SnoopIClass(void) //samples += 4; samples += 1; + //div2++; + //if(div2 > 3) { + //div2 = 0; + //decbyte ^= ((smpl & 0x01) << (3 - div)); + //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1)) << (3 - div)); // better already... + //decbyte ^= (((smpl & 0x01) | ((smpl & 0x02) >> 1) | ((smpl & 0x04) >> 2)) << (3 - div)); // even better... if(smpl & 0xF) { decbyte ^= (1 << (3 - div)); } + //decbyte ^= (MajorityNibble[(smpl & 0x0F)] << (3 - div)); // FOR READER SIDE COMMUMICATION... - + //decbyte ^= ((smpl & 0x10) << (3 - div)); decbyter <<= 2; decbyter ^= (smpl & 0x30); @@ -772,11 +790,21 @@ void RAMFUNC SnoopIClass(void) if(OutOfNDecoding((smpl & 0xF0) >> 4)) { rsamples = samples - Uart.samples; LED_C_ON(); - - if(!LogTrace(readerToTagCmd,Uart.byteCnt, rsamples, Uart.parityBits,TRUE)) break; - //if(!LogTrace(NULL, 0, Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER, 0, TRUE)) break; - - /* And ready to receive another command. */ + //if(triggered) { + trace[traceLen++] = ((rsamples >> 0) & 0xff); + trace[traceLen++] = ((rsamples >> 8) & 0xff); + trace[traceLen++] = ((rsamples >> 16) & 0xff); + trace[traceLen++] = ((rsamples >> 24) & 0xff); + trace[traceLen++] = ((Uart.parityBits >> 0) & 0xff); + trace[traceLen++] = ((Uart.parityBits >> 8) & 0xff); + trace[traceLen++] = ((Uart.parityBits >> 16) & 0xff); + trace[traceLen++] = ((Uart.parityBits >> 24) & 0xff); + trace[traceLen++] = Uart.byteCnt; + memcpy(trace+traceLen, receivedCmd, Uart.byteCnt); + traceLen += Uart.byteCnt; + if(traceLen > TRACE_SIZE) break; + //} + /* And ready to receive another command. */ Uart.state = STATE_UNSYNCD; /* And also reset the demod code, which might have been */ /* false-triggered by the commands from the reader. */ @@ -793,13 +821,26 @@ void RAMFUNC SnoopIClass(void) rsamples = samples - Demod.samples; LED_B_ON(); - if(!LogTrace(tagToReaderResponse,Demod.len, rsamples, Demod.parityBits,FALSE)) break; - //if (!LogTrace(NULL, 0, Demod.endTime*16 - DELAY_TAG_AIR2ARM_AS_SNIFFER, 0, FALSE)) break; - + // timestamp, as a count of samples + trace[traceLen++] = ((rsamples >> 0) & 0xff); + trace[traceLen++] = ((rsamples >> 8) & 0xff); + trace[traceLen++] = ((rsamples >> 16) & 0xff); + trace[traceLen++] = 0x80 | ((rsamples >> 24) & 0xff); + trace[traceLen++] = ((Demod.parityBits >> 0) & 0xff); + trace[traceLen++] = ((Demod.parityBits >> 8) & 0xff); + trace[traceLen++] = ((Demod.parityBits >> 16) & 0xff); + trace[traceLen++] = ((Demod.parityBits >> 24) & 0xff); + // length + trace[traceLen++] = Demod.len; + memcpy(trace+traceLen, receivedResponse, Demod.len); + traceLen += Demod.len; + if(traceLen > TRACE_SIZE) break; + + //triggered = TRUE; // And ready to receive another response. memset(&Demod, 0, sizeof(Demod)); - Demod.output = tagToReaderResponse; + Demod.output = receivedResponse; Demod.state = DEMOD_UNSYNCD; LED_C_OFF(); } @@ -947,72 +988,32 @@ static void CodeIClassTagSOF() ToSendMax++; } -/** - * @brief SimulateIClass simulates an iClass card. - * @param arg0 type of simulation - * - 0 uses the first 8 bytes in usb data as CSN - * - 2 "dismantling iclass"-attack. This mode iterates through all CSN's specified - * in the usb data. This mode collects MAC from the reader, in order to do an offline - * attack on the keys. For more info, see "dismantling iclass" and proxclone.com. - * - Other : Uses the default CSN (031fec8af7ff12e0) - * @param arg1 - number of CSN's contained in datain (applicable for mode 2 only) - * @param arg2 - * @param datain - */ -void SimulateIClass(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain) +//----------------------------------------------------------------------------- +// Simulate iClass Card +// Only CSN (Card Serial Number) +// +//----------------------------------------------------------------------------- +void SimulateIClass(uint8_t arg0, uint8_t *datain) { - uint32_t simType = arg0; - uint32_t numberOfCSNS = arg1; - - // Enable and clear the trace - iso14a_set_tracing(TRUE); - iso14a_clear_trace(); + uint8_t simType = arg0; - 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); - }else if(simType == 1) - { - doIClassSimulation(csn_crc,0); - } - else if(simType == 2) - { - 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++) - { - // The usb data is 512 bytes, fitting 65 8-byte CSNs in there. - - memcpy(csn_crc, datain+(i*8), 8); - doIClassSimulation(csn_crc,1); - } - }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"); - } + // Enable and clear the trace + tracing = TRUE; + traceLen = 0; + memset(trace, 0x44, TRACE_SIZE); -} -/** - * @brief Does the actual simulation - * @param csn - csn to use - * @param breakAfterMacReceived if true, returns after reader MAC has been received. - */ -void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) -{ // 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}; - memcpy(response3,csn,sizeof(response3)); + uint8_t response3[] = { 0x03, 0x1f, 0xec, 0x8a, 0xf7, 0xff, 0x12, 0xe0, 0x00, 0x00 }; // e-Purse uint8_t response4[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + if(simType == 0) { + // Use the CSN from commandline + memcpy(response3, datain, 8); + } + // Construct anticollision-CSN rotateCSN(response3,response2); @@ -1020,7 +1021,6 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) ComputeCrc14443(CRC_ICLASS, response2, 8, &response2[8], &response2[9]); ComputeCrc14443(CRC_ICLASS, response3, 8, &response3[8], &response3[9]); - int exitLoop = 0; // Reader 0a // Tag 0f // Reader 0c @@ -1054,7 +1054,7 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) int resp4Len; // + 1720.. - uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); + uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET); memset(receivedCmd, 0x44, RECV_CMD_SIZE); int len; @@ -1085,7 +1085,7 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) int cmdsRecvd = 0; LED_A_ON(); - while(!exitLoop) { + for(;;) { LED_B_OFF(); if(!GetIClassCommandFromReader(receivedCmd, &len, 100)) { DbpString("button press"); @@ -1093,13 +1093,13 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) } // Okay, look at the command now. - if(receivedCmd[0] == 0x0a || receivedCmd[0] == 0x26) { + if(receivedCmd[0] == 0x0a) { // Reader in anticollission phase resp = resp1; respLen = resp1Len; //order = 1; respdata = &sof; respsize = sizeof(sof); //resp = resp2; respLen = resp2Len; order = 2; - Dbprintf("Hello request from reader, %02x, tracing=%d", receivedCmd[0], tracing); + //DbpString("Hello request from reader:"); } else if(receivedCmd[0] == 0x0c) { // Reader asks for anticollission CSN resp = resp2; respLen = resp2Len; //order = 2; @@ -1121,28 +1121,30 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) LED_B_ON(); } else if(receivedCmd[0] == 0x05) { // Reader random and reader MAC!!! + // Lets store this ;-) +/* + Dbprintf(" CSN: %02x %02x %02x %02x %02x %02x %02x %02x", + response3[0], response3[1], response3[2], + response3[3], response3[4], response3[5], + response3[6], response3[7]); +*/ + Dbprintf("READER AUTH (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]); + // Do not respond // We do not know what to answer, so lets keep quit 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("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]); - exitLoop = true; - } } else if(receivedCmd[0] == 0x00 && len == 1) { // Reader ends the session resp = resp1; respLen = 0; //order = 0; respdata = NULL; respsize = 0; } else { - //#db# Unknown command received from reader (len=5): 26 1 0 f6 a 44 44 44 44 // Never seen this command before Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x", len, @@ -1168,22 +1170,16 @@ void doIClassSimulation(uint8_t csn[], int breakAfterMacReceived) } if (tracing) { - //LogTrace(receivedCmd,len, rsamples, Uart.parityBits, TRUE); - if(!LogTrace(receivedCmd,len, rsamples, Uart.parityBits,TRUE)) - { + LogTrace(receivedCmd,len, rsamples, Uart.parityBits, TRUE); + if (respdata != NULL) { + LogTrace(respdata,respsize, rsamples, SwapBits(GetParity(respdata,respsize),respsize), FALSE); + } + if(traceLen > TRACE_SIZE) { DbpString("Trace full"); break; } - - if (respdata != NULL) { - //LogTrace(respdata,respsize, rsamples, SwapBits(GetParity(respdata,respsize),respsize), FALSE); - if(!LogTrace(respdata,respsize, rsamples,SwapBits(GetParity(respdata,respsize),respsize),FALSE)) - { - DbpString("Trace full"); - break; - } - } } + memset(receivedCmd, 0x44, RECV_CMD_SIZE); } @@ -1428,7 +1424,7 @@ void ReaderIClass(uint8_t arg0) { 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 @@ -1482,4 +1478,245 @@ void ReaderIClass(uint8_t arg0) { 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 + + // Reset trace buffer + memset(trace, 0x44, RECV_CMD_OFFSET); + traceLen = 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); + + 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(); + + 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(); +} + +//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 read[] = { 0x0c, 0x00, 0x00, 0x00 }; + uint8_t card_data[24]={0}; + + //bool read_success=false; + uint8_t* resp = (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes + + // Reset trace buffer + memset(trace, 0x44, RECV_CMD_OFFSET); + traceLen = 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); + + 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(); + + 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]); + } + memcpy(card_data,resp,8); + // 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]); + } + memcpy(card_data+8,resp,8); + //prep to read config block + /* read card configuration block + while(!read_success){ + uint8_t sector_config=0x01; + memcpy(read+1,§or_config,1); + ReaderTransmitIClass(read, sizeof(read)); + 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]); + read_success=true; + memcpy(card_data+16,resp,8); + } + }*/ + } + } + WDT_HIT(); + } + //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[0],card_data[1],card_data[2],card_data[3],card_data[4],card_data[5],card_data[6],card_data[7]); + //Dbprintf("DEBUG: %02x%02x%02x%02x%02x%02x%02x%02x",card_data[8],card_data[9],card_data[10],card_data[11],card_data[12],card_data[13],card_data[14],card_data[15]); + LED_A_OFF(); + LED_B_ON(); + //send data back to the client + cmd_send(CMD_ACK,0,0,0,card_data,16); + LED_B_OFF(); +} + +//TODO: Create Write method