//p_response = &responses[9];
} else if(receivedCmd[0] == 0x50) { // Received a HALT
-
- if (tracing) {
- LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
- }
+ LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
p_response = NULL;
} else if(receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61) { // Received an authentication request
p_response = &responses[6]; order = 70;
}
} else if (order == 7 && len == 8) { // Received {nr] and {ar} (part of authentication)
- if (tracing) {
- LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
- }
+ LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
uint32_t nonce = bytes_to_num(response5,4);
uint32_t nr = bytes_to_num(receivedCmd,4);
uint32_t ar = bytes_to_num(receivedCmd+4,4);
default: {
// Never seen this command before
- if (tracing) {
- LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
- }
+ LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
Dbprintf("Received unknown command (len=%d):",len);
Dbhexdump(len,receivedCmd,false);
// Do not respond
if (prepare_tag_modulation(&dynamic_response_info,DYNAMIC_MODULATION_BUFFER_SIZE) == false) {
Dbprintf("Error preparing tag response");
- if (tracing) {
- LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
- }
+ LogTrace(receivedCmd, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
break;
}
p_response = &dynamic_response_info;
if (p_response != NULL) {
EmSendCmd14443aRaw(p_response->modulation, p_response->modulation_n, receivedCmd[0] == 0x52);
// do the tracing for the previous reader request and this tag answer:
- uint8_t par[MAX_PARITY_SIZE];
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
GetParity(p_response->response, p_response->response_n, par);
EmLogTrace(Uart.output,
//-------------------------------------------------------------------------------------
static void TransmitFor14443a(const uint8_t *cmd, uint16_t len, uint32_t *timing)
{
-
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
uint32_t ThisTransferTime = 0;
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
AT91C_BASE_SSC->SSC_THR = cmd[c];
c++;
- if(c >= len) {
+ if(c >= len)
break;
- }
}
}
void CodeIso14443aBitsAsReaderPar(const uint8_t *cmd, uint16_t bits, const uint8_t *parity)
{
int i, j;
- int last;
+ int last = 0;
uint8_t b;
ToSendReset();
// Start of Communication (Seq. Z)
ToSend[++ToSendMax] = SEC_Z;
LastProxToAirDuration = 8 * (ToSendMax+1) - 6;
- last = 0;
size_t bytecount = nbytes(bits);
// Generate send structure for the data bits
Code4bitAnswerAsTag(resp);
int res = EmSendCmd14443aRaw(ToSend, ToSendMax, correctionNeeded);
// do the tracing for the previous reader request and this tag answer:
- uint8_t par[1];
+ uint8_t par[1] = {0x00};
GetParity(&resp, 1, par);
EmLogTrace(Uart.output,
Uart.len,
}
int EmSendCmdEx(uint8_t *resp, uint16_t respLen, bool correctionNeeded){
- uint8_t par[MAX_PARITY_SIZE];
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
GetParity(resp, respLen, par);
return EmSendCmdExPar(resp, respLen, correctionNeeded, par);
}
int EmSendCmd(uint8_t *resp, uint16_t respLen){
- uint8_t par[MAX_PARITY_SIZE];
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
GetParity(resp, respLen, par);
return EmSendCmdExPar(resp, respLen, false, par);
}
bool EmLogTrace(uint8_t *reader_data, uint16_t reader_len, uint32_t reader_StartTime, uint32_t reader_EndTime, uint8_t *reader_Parity,
uint8_t *tag_data, uint16_t tag_len, uint32_t tag_StartTime, uint32_t tag_EndTime, uint8_t *tag_Parity)
{
- if (tracing) {
- // we cannot exactly measure the end and start of a received command from reader. However we know that the delay from
- // end of the received command to start of the tag's (simulated by us) answer is n*128+20 or n*128+84 resp.
- // with n >= 9. The start of the tags answer can be measured and therefore the end of the received command be calculated:
- uint16_t reader_modlen = reader_EndTime - reader_StartTime;
- uint16_t approx_fdt = tag_StartTime - reader_EndTime;
- uint16_t exact_fdt = (approx_fdt - 20 + 32)/64 * 64 + 20;
- reader_EndTime = tag_StartTime - exact_fdt;
- reader_StartTime = reader_EndTime - reader_modlen;
- if (!LogTrace(reader_data, reader_len, reader_StartTime, reader_EndTime, reader_Parity, TRUE)) {
- return FALSE;
- } else return(!LogTrace(tag_data, tag_len, tag_StartTime, tag_EndTime, tag_Parity, FALSE));
- } else {
- return TRUE;
- }
+ // we cannot exactly measure the end and start of a received command from reader. However we know that the delay from
+ // end of the received command to start of the tag's (simulated by us) answer is n*128+20 or n*128+84 resp.
+ // with n >= 9. The start of the tags answer can be measured and therefore the end of the received command be calculated:
+ uint16_t reader_modlen = reader_EndTime - reader_StartTime;
+ uint16_t approx_fdt = tag_StartTime - reader_EndTime;
+ uint16_t exact_fdt = (approx_fdt - 20 + 32)/64 * 64 + 20;
+ reader_EndTime = tag_StartTime - exact_fdt;
+ reader_StartTime = reader_EndTime - reader_modlen;
+
+ if (!LogTrace(reader_data, reader_len, reader_StartTime, reader_EndTime, reader_Parity, TRUE))
+ return FALSE;
+ else
+ return(!LogTrace(tag_data, tag_len, tag_StartTime, tag_EndTime, tag_Parity, FALSE));
+
}
//-----------------------------------------------------------------------------
LED_A_ON();
// Log reader command in trace buffer
- if (tracing) {
- LogTrace(frame, nbytes(bits), LastTimeProxToAirStart*16 + DELAY_ARM2AIR_AS_READER, (LastTimeProxToAirStart + LastProxToAirDuration)*16 + DELAY_ARM2AIR_AS_READER, par, TRUE);
- }
+ LogTrace(frame, nbytes(bits), LastTimeProxToAirStart*16 + DELAY_ARM2AIR_AS_READER, (LastTimeProxToAirStart + LastProxToAirDuration)*16 + DELAY_ARM2AIR_AS_READER, par, TRUE);
}
void ReaderTransmitPar(uint8_t* frame, uint16_t len, uint8_t *par, uint32_t *timing)
void ReaderTransmitBits(uint8_t* frame, uint16_t len, uint32_t *timing)
{
// Generate parity and redirect
- uint8_t par[MAX_PARITY_SIZE];
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
GetParity(frame, len/8, par);
ReaderTransmitBitsPar(frame, len, par, timing);
}
void ReaderTransmit(uint8_t* frame, uint16_t len, uint32_t *timing)
{
// Generate parity and redirect
- uint8_t par[MAX_PARITY_SIZE];
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
GetParity(frame, len, par);
ReaderTransmitBitsPar(frame, len*8, par, timing);
}
int ReaderReceiveOffset(uint8_t* receivedAnswer, uint16_t offset, uint8_t *parity)
{
- if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, offset)) return FALSE;
- if (tracing) {
- LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, FALSE);
- }
+ if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, offset))
+ return FALSE;
+
+ LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, FALSE);
return Demod.len;
}
int ReaderReceive(uint8_t *receivedAnswer, uint8_t *parity)
{
- if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, 0)) return FALSE;
- if (tracing) {
- LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, FALSE);
- }
+ if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, 0))
+ return FALSE;
+
+ LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, FALSE);
return Demod.len;
}
if (!ReaderReceive(resp, resp_par)) return 0;
sak = resp[0];
- // Test if more parts of the uid are coming
+ // Test if more parts of the uid are coming
if ((sak & 0x04) /* && uid_resp[0] == 0x88 */) {
// Remove first byte, 0x88 is not an UID byte, it CT, see page 3 of:
// http://www.nxp.com/documents/application_note/AN10927.pdf
}
int iso14_apdu(uint8_t *cmd, uint16_t cmd_len, void *data) {
- uint8_t parity[MAX_PARITY_SIZE];
+ uint8_t parity[MAX_PARITY_SIZE] = {0x00};
uint8_t real_cmd[cmd_len+4];
real_cmd[0] = 0x0a; //I-Block
// put block number into the PCB
size_t lenbits = c->arg[1] >> 16;
uint32_t timeout = c->arg[2];
uint32_t arg0 = 0;
- byte_t buf[USB_CMD_DATA_SIZE];
- uint8_t par[MAX_PARITY_SIZE];
+ byte_t buf[USB_CMD_DATA_SIZE] = {0x00};
+ uint8_t par[MAX_PARITY_SIZE] = {0x00};
- if(param & ISO14A_CONNECT) {
+ if (param & ISO14A_CONNECT)
clear_trace();
- }
set_tracing(TRUE);
- if(param & ISO14A_REQUEST_TRIGGER) {
+ if (param & ISO14A_REQUEST_TRIGGER)
iso14a_set_trigger(TRUE);
- }
- if(param & ISO14A_CONNECT) {
+
+ if (param & ISO14A_CONNECT) {
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
if(!(param & ISO14A_NO_SELECT)) {
iso14a_card_select_t *card = (iso14a_card_select_t*)buf;
}
}
- if(param & ISO14A_SET_TIMEOUT) {
+ if (param & ISO14A_SET_TIMEOUT)
iso14a_set_timeout(timeout);
- }
- if(param & ISO14A_APDU) {
+ if (param & ISO14A_APDU) {
arg0 = iso14_apdu(cmd, len, buf);
cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
}
- if(param & ISO14A_RAW) {
+ if (param & ISO14A_RAW) {
if(param & ISO14A_APPEND_CRC) {
if(param & ISO14A_TOPAZMODE) {
AppendCrc14443b(cmd,len);
cmd_send(CMD_ACK,arg0,0,0,buf,sizeof(buf));
}
- if(param & ISO14A_REQUEST_TRIGGER) {
+ if (param & ISO14A_REQUEST_TRIGGER)
iso14a_set_trigger(FALSE);
- }
- if(param & ISO14A_NO_DISCONNECT) {
+
+ if (param & ISO14A_NO_DISCONNECT)
return;
- }
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
set_tracing(FALSE);
// Therefore try in alternating directions.
int32_t dist_nt(uint32_t nt1, uint32_t nt2) {
- uint16_t i;
- uint32_t nttmp1, nttmp2;
-
if (nt1 == nt2) return 0;
-
- nttmp1 = nt1;
- nttmp2 = nt2;
- for (i = 1; i < 0xFFFF; i++) {
+ uint16_t i;
+ uint32_t nttmp1 = nt1;
+ uint32_t nttmp2 = nt2;
+
+ for (i = 1; i < 0xFFFF; ++i) {
nttmp1 = prng_successor(nttmp1, 1);
if (nttmp1 == nt2) return i;
+
nttmp2 = prng_successor(nttmp2, 1);
- if (nttmp2 == nt1) return -i;
- }
+ if (nttmp2 == nt1) return -i;
+ }
return(-99999); // either nt1 or nt2 are invalid nonces
}
// Cloning MiFare Classic Rail and Building Passes, Anywhere, Anytime"
// (article by Nicolas T. Courtois, 2009)
//-----------------------------------------------------------------------------
-void ReaderMifare(bool first_try)
+void ReaderMifare(bool first_try, uint8_t block )
{
// Mifare AUTH
- uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
+ //uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
+ //uint8_t mf_auth[] = { 0x60,0x05, 0x58, 0x2c };
+ uint8_t mf_auth[] = { 0x60,0x00, 0x00, 0x00 };
uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
static uint8_t mf_nr_ar3;
+ mf_auth[1] = block;
+ AppendCrc14443a(mf_auth, 2);
+
uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE] = {0x00};
uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE] = {0x00};
static byte_t par_low = 0;
bool led_on = TRUE;
uint8_t uid[10] = {0};
- uint32_t cuid;
+ uint32_t cuid = 0;
uint32_t nt = 0;
uint32_t previous_nt = 0;
static int32_t sync_cycles = 0;
int catch_up_cycles = 0;
int last_catch_up = 0;
- uint16_t elapsed_prng_sequences;
+ uint16_t elapsed_prng_sequences = 0;
uint16_t consecutive_resyncs = 0;
int isOK = 0;
int16_t debug_info_nr = -1;
uint16_t strategy = 0;
int32_t debug_info[MAX_STRATEGY][NUM_DEBUG_INFOS];
- uint32_t select_time;
- uint32_t halt_time;
+ uint32_t select_time = 0;
+ uint32_t halt_time = 0;
for(uint16_t i = 0; TRUE; ++i) {
SpinDelay(200);
iso14443a_setup(FPGA_HF_ISO14443A_READER_MOD);
SpinDelay(100);
+ WDT_HIT();
}
if(!iso14443a_select_card(uid, NULL, &cuid, true, 0)) {
while(GetCountSspClk() > sync_time) {
elapsed_prng_sequences++;
sync_time = (sync_time & 0xfffffff8) + sync_cycles;
- }
+ }
// Transmit MIFARE_CLASSIC_AUTH at synctime. Should result in returning the same tag nonce (== nt_attacked)
ReaderTransmit(mf_auth, sizeof(mf_auth), &sync_time);
+
} else {
// collect some information on tag nonces for debugging:
#define DEBUG_FIXED_SYNC_CYCLES PRNG_SEQUENCE_LENGTH
isOK = -4; // Card's PRNG runs at an unexpected frequency or resets unexpectedly
break;
} else { // continue for a while, just to collect some debug info
- debug_info[strategy][debug_info_nr] = nt_distance;
- debug_info_nr++;
+ ++debug_info_nr;
+ debug_info[strategy][debug_info_nr] = nt_distance;
if (debug_info_nr == NUM_DEBUG_INFOS) {
- strategy++;
+ ++strategy;
debug_info_nr = 0;
}
continue;
}
catch_up_cycles /= elapsed_prng_sequences;
if (catch_up_cycles == last_catch_up) {
- consecutive_resyncs++;
+ ++consecutive_resyncs;
}
else {
last_catch_up = catch_up_cycles;
} else {
if (nt_diff == 0 && first_try) {
par[0]++;
- if (par[0] == 0x00) { // tried all 256 possible parities without success. Card doesn't send NACK.
+ if (par[0] == 0x00) { // tried all 256 possible parities without success. Card doesn't send NACK.
isOK = -2;
break;
}
}
}
-
mf_nr_ar[3] &= 0x1F;
-
+
+ WDT_HIT();
+
if (isOK == -4) {
if (MF_DBGLEVEL >= 3) {
- for (uint16_t i = 0; i <= MAX_STRATEGY; i++) {
- for(uint16_t j = 0; j < NUM_DEBUG_INFOS; j++) {
+ for (uint16_t i = 0; i <= MAX_STRATEGY; ++i) {
+ for(uint16_t j = 0; j < NUM_DEBUG_INFOS; ++j) {
Dbprintf("collected debug info[%d][%d] = %d", i, j, debug_info[i][j]);
}
}
struct Crypto1State *pcs;
pcs = &mpcs;
uint32_t numReads = 0;//Counts numer of times reader read a block
- uint8_t receivedCmd[MAX_MIFARE_FRAME_SIZE];
- uint8_t receivedCmd_par[MAX_MIFARE_PARITY_SIZE];
- uint8_t response[MAX_MIFARE_FRAME_SIZE];
- uint8_t response_par[MAX_MIFARE_PARITY_SIZE];
+ uint8_t receivedCmd[MAX_MIFARE_FRAME_SIZE] = {0x00};
+ uint8_t receivedCmd_par[MAX_MIFARE_PARITY_SIZE] = {0x00};
+ uint8_t response[MAX_MIFARE_FRAME_SIZE] = {0x00};
+ uint8_t response_par[MAX_MIFARE_PARITY_SIZE] = {0x00};
uint8_t rATQA[] = {0x04, 0x00}; // Mifare classic 1k 4BUID
uint8_t rUIDBCC1[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
- if(flags & FLAG_INTERACTIVE)// Interactive mode flag, means we need to send ACK
- {
+ // Interactive mode flag, means we need to send ACK
+ if(flags & FLAG_INTERACTIVE) {
//May just aswell send the collected ar_nr in the response aswell
uint8_t len = ar_nr_collected*5*4;
cmd_send(CMD_ACK, CMD_SIMULATE_MIFARE_CARD, len, 0, &ar_nr_responses, len);
}
- if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1 )
- {
+ if(flags & FLAG_NR_AR_ATTACK && MF_DBGLEVEL >= 1 ) {
if(ar_nr_collected > 1 ) {
Dbprintf("Collected two pairs of AR/NR which can be used to extract keys from reader:");
Dbprintf("../tools/mfkey/mfkey32 %06x%08x %08x %08x %08x %08x %08x",
// param:
// bit 0 - trigger from first card answer
// bit 1 - trigger from first reader 7-bit request
-
- // C(red) A(yellow) B(green)
LEDsoff();
+
// init trace buffer
clear_trace();
set_tracing(TRUE);
// 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 receivedCmd[MAX_MIFARE_FRAME_SIZE] = {0x00};
+ uint8_t receivedCmd[MAX_MIFARE_FRAME_SIZE] = {0x00};
uint8_t receivedCmdPar[MAX_MIFARE_PARITY_SIZE] = {0x00};
+
// The response (tag -> reader) that we're receiving.
uint8_t receivedResponse[MAX_MIFARE_FRAME_SIZE] = {0x00};
uint8_t receivedResponsePar[MAX_MIFARE_PARITY_SIZE] = {0x00};
// free eventually allocated BigBuf memory
BigBuf_free();
+
// allocate the DMA buffer, used to stream samples from the FPGA
uint8_t *dmaBuf = BigBuf_malloc(DMA_BUFFER_SIZE);
uint8_t *data = dmaBuf;
projects / proxmark3-svn / blobdiff