// Routines to support ISO 14443 type A.
//-----------------------------------------------------------------------------
+#include "iso14443a.h"
+
#include "proxmark3.h"
#include "apps.h"
#include "util.h"
#include "string.h"
#include "cmd.h"
#include "iso14443crc.h"
-#include "iso14443a.h"
-#include "crapto1.h"
+#include "crapto1/crapto1.h"
#include "mifareutil.h"
+#include "mifaresniff.h"
#include "BigBuf.h"
#include "protocols.h"
+#include "parity.h"
+
+typedef struct {
+ enum {
+ DEMOD_UNSYNCD,
+ // DEMOD_HALF_SYNCD,
+ // DEMOD_MOD_FIRST_HALF,
+ // DEMOD_NOMOD_FIRST_HALF,
+ DEMOD_MANCHESTER_DATA
+ } state;
+ uint16_t twoBits;
+ uint16_t highCnt;
+ uint16_t bitCount;
+ uint16_t collisionPos;
+ uint16_t syncBit;
+ uint8_t parityBits;
+ uint8_t parityLen;
+ uint16_t shiftReg;
+ uint16_t samples;
+ uint16_t len;
+ uint32_t startTime, endTime;
+ uint8_t *output;
+ uint8_t *parity;
+} tDemod;
+
+typedef enum {
+ MOD_NOMOD = 0,
+ MOD_SECOND_HALF,
+ MOD_FIRST_HALF,
+ MOD_BOTH_HALVES
+ } Modulation_t;
+
+typedef struct {
+ enum {
+ STATE_UNSYNCD,
+ STATE_START_OF_COMMUNICATION,
+ STATE_MILLER_X,
+ STATE_MILLER_Y,
+ STATE_MILLER_Z,
+ // DROP_NONE,
+ // DROP_FIRST_HALF,
+ } state;
+ uint16_t shiftReg;
+ int16_t bitCount;
+ uint16_t len;
+ uint16_t byteCntMax;
+ uint16_t posCnt;
+ uint16_t syncBit;
+ uint8_t parityBits;
+ uint8_t parityLen;
+ uint32_t fourBits;
+ uint32_t startTime, endTime;
+ uint8_t *output;
+ uint8_t *parity;
+} tUart;
static uint32_t iso14a_timeout;
int rsamples = 0;
#define REQUEST_GUARD_TIME (7000/16 + 1)
// minimum time between last modulation of tag and next start bit from reader to tag: 1172 carrier cycles
#define FRAME_DELAY_TIME_PICC_TO_PCD (1172/16 + 1)
-// bool LastCommandWasRequest = FALSE;
+// bool LastCommandWasRequest = false;
//
// Total delays including SSC-Transfers between ARM and FPGA. These are in carrier clock cycles (1/13,56MHz)
#define SEC_Y 0x00
#define SEC_Z 0xc0
-const uint8_t OddByteParity[256] = {
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0,
- 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1
-};
-
-
void iso14a_set_trigger(bool enable) {
trigger = enable;
}
// Generate the parity value for a byte sequence
//
//-----------------------------------------------------------------------------
-byte_t oddparity (const byte_t bt)
-{
- return OddByteParity[bt];
-}
-
void GetParity(const uint8_t *pbtCmd, uint16_t iLen, uint8_t *par)
{
uint16_t paritybit_cnt = 0;
for (uint16_t i = 0; i < iLen; i++) {
// Generate the parity bits
- parityBits |= ((OddByteParity[pbtCmd[i]]) << (7-paritybit_cnt));
+ parityBits |= ((oddparity8(pbtCmd[i])) << (7-paritybit_cnt));
if (paritybit_cnt == 7) {
par[paritybyte_cnt] = parityBits; // save 8 Bits parity
parityBits = 0; // and advance to next Parity Byte
// 0111 - a 2 tick wide pause shifted left
// 1001 - a 2 tick wide pause shifted right
const bool Mod_Miller_LUT[] = {
- FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, TRUE,
- FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE
+ false, true, false, true, false, false, false, true,
+ false, true, false, false, false, false, false, false
};
#define IsMillerModulationNibble1(b) (Mod_Miller_LUT[(b & 0x000000F0) >> 4])
#define IsMillerModulationNibble2(b) (Mod_Miller_LUT[(b & 0x0000000F)])
Uart.parityBits <<= 1; // add a (void) parity bit
Uart.parityBits <<= (8 - (Uart.len&0x0007)); // left align parity bits
Uart.parity[Uart.parityLen++] = Uart.parityBits; // and store it
- return TRUE;
+ return true;
} else if (Uart.len & 0x0007) { // there are some parity bits to store
Uart.parityBits <<= (8 - (Uart.len&0x0007)); // left align remaining parity bits
Uart.parity[Uart.parityLen++] = Uart.parityBits; // and store them
}
if (Uart.len) {
- return TRUE; // we are finished with decoding the raw data sequence
+ return true; // we are finished with decoding the raw data sequence
} else {
UartReset(); // Nothing received - start over
}
}
- return FALSE; // not finished yet, need more data
+ return false; // not finished yet, need more data
}
// Lookup-Table to decide if 4 raw bits are a modulation.
// We accept three or four "1" in any position
const bool Mod_Manchester_LUT[] = {
- FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE,
- FALSE, FALSE, FALSE, TRUE, FALSE, TRUE, TRUE, TRUE
+ false, false, false, false, false, false, false, true,
+ false, false, false, true, false, true, true, true
};
#define IsManchesterModulationNibble1(b) (Mod_Manchester_LUT[(b & 0x00F0) >> 4])
Demod.parityBits <<= 1; // add a (void) parity bit
Demod.parityBits <<= (8 - (Demod.len&0x0007)); // left align remaining parity bits
Demod.parity[Demod.parityLen++] = Demod.parityBits; // and store them
- return TRUE;
+ return true;
} else if (Demod.len & 0x0007) { // there are some parity bits to store
Demod.parityBits <<= (8 - (Demod.len&0x0007)); // left align remaining parity bits
Demod.parity[Demod.parityLen++] = Demod.parityBits; // and store them
}
if (Demod.len) {
- return TRUE; // we are finished with decoding the raw data sequence
+ return true; // we are finished with decoding the raw data sequence
} else { // nothing received. Start over
DemodReset();
}
}
- return FALSE; // not finished yet, need more data
+ return false; // not finished yet, need more data
}
//=============================================================================
// init trace buffer
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
uint8_t *data = dmaBuf;
uint8_t previous_data = 0;
int maxDataLen = 0;
int dataLen = 0;
- bool TagIsActive = FALSE;
- bool ReaderIsActive = FALSE;
+ bool TagIsActive = false;
+ bool ReaderIsActive = false;
// Set up the demodulator for tag -> reader responses.
DemodInit(receivedResponse, receivedResponsePar);
// 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
// response from the tag.
- // triggered == FALSE -- to wait first for card
+ // triggered == false -- to wait first for card
bool triggered = !(param & 0x03);
// And now we loop, receiving samples.
- for(uint32_t rsamples = 0; TRUE; ) {
+ for(uint32_t rsamples = 0; true; ) {
if(BUTTON_PRESS()) {
DbpString("cancelled by button");
LED_C_ON();
// check - if there is a short 7bit request from reader
- if ((!triggered) && (param & 0x02) && (Uart.len == 1) && (Uart.bitCount == 7)) triggered = TRUE;
+ if ((!triggered) && (param & 0x02) && (Uart.len == 1) && (Uart.bitCount == 7)) triggered = true;
if(triggered) {
if (!LogTrace(receivedCmd,
Uart.startTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER,
Uart.endTime*16 - DELAY_READER_AIR2ARM_AS_SNIFFER,
Uart.parity,
- TRUE)) break;
+ true)) break;
}
/* And ready to receive another command. */
UartReset();
Demod.startTime*16 - DELAY_TAG_AIR2ARM_AS_SNIFFER,
Demod.endTime*16 - DELAY_TAG_AIR2ARM_AS_SNIFFER,
Demod.parity,
- FALSE)) break;
+ false)) break;
- if ((!triggered) && (param & 0x01)) triggered = TRUE;
+ if ((!triggered) && (param & 0x01)) triggered = true;
// And ready to receive another response.
DemodReset();
//-----------------------------------------------------------------------------
// Wait for commands from reader
// Stop when button is pressed
-// Or return TRUE when command is captured
+// Or return true when command is captured
//-----------------------------------------------------------------------------
static int GetIso14443aCommandFromReader(uint8_t *received, uint8_t *parity, int *len)
{
for(;;) {
WDT_HIT();
- if(BUTTON_PRESS()) return FALSE;
+ if(BUTTON_PRESS()) return false;
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
if(MillerDecoding(b, 0)) {
*len = Uart.len;
- return TRUE;
+ return true;
}
}
}
// clear trace
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
// Prepare the responses of the anticollision phase
// there will be not enough time to do this at the moment the reader sends it REQA
} 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
}
} 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 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);
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;
}
// include correction bit if necessary
if (Uart.parityBits & 0x01) {
- correctionNeeded = TRUE;
+ correctionNeeded = true;
}
if(correctionNeeded) {
// 1236, so correction bit needed
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));
+ 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;
+ return true;
}
}
//-----------------------------------------------------------------------------
// Wait a certain time for tag response
-// If a response is captured return TRUE
-// If it takes too long return FALSE
+// If a response is captured return true
+// If it takes too long return false
//-----------------------------------------------------------------------------
static int GetIso14443aAnswerFromTag(uint8_t *receivedResponse, uint8_t *receivedResponsePar, uint16_t offset)
{
b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
if(ManchesterDecoding(b, offset, 0)) {
NextTransferTime = MAX(NextTransferTime, Demod.endTime - (DELAY_AIR2ARM_AS_READER + DELAY_ARM2AIR_AS_READER)/16 + FRAME_DELAY_TIME_PICC_TO_PCD);
- return TRUE;
+ return true;
} else if (c++ > iso14a_timeout && Demod.state == DEMOD_UNSYNCD) {
- return FALSE;
+ return false;
}
}
}
// 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);
}
}
int ReaderReceiveOffset(uint8_t* receivedAnswer, uint16_t offset, uint8_t *parity)
{
- if (!GetIso14443aAnswerFromTag(receivedAnswer, parity, offset)) return FALSE;
+ 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);
+ 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 (!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);
+ LogTrace(receivedAnswer, Demod.len, Demod.startTime*16 - DELAY_AIR2ARM_AS_READER, Demod.endTime*16 - DELAY_AIR2ARM_AS_READER, parity, false);
}
return Demod.len;
}
-/* performs iso14443a anticollision procedure
- * fills the uid pointer unless NULL
- * fills resp_data unless NULL */
-int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, uint32_t *cuid_ptr) {
+// performs iso14443a anticollision (optional) and card select procedure
+// fills the uid and cuid pointer unless NULL
+// fills the card info record unless NULL
+// if anticollision is false, then the UID must be provided in uid_ptr[]
+// and num_cascades must be set (1: 4 Byte UID, 2: 7 Byte UID, 3: 10 Byte UID)
+// requests ATS unless no_rats is true
+int iso14443a_select_card(byte_t *uid_ptr, iso14a_card_select_t *p_hi14a_card, uint32_t *cuid_ptr, bool anticollision, uint8_t num_cascades, bool no_rats) {
uint8_t wupa[] = { 0x52 }; // 0x26 - REQA 0x52 - WAKE-UP
uint8_t sel_all[] = { 0x93,0x20 };
uint8_t sel_uid[] = { 0x93,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
int len;
// Broadcast for a card, WUPA (0x52) will force response from all cards in the field
- ReaderTransmitBitsPar(wupa,7,0, NULL);
+ ReaderTransmitBitsPar(wupa, 7, NULL, NULL);
// Receive the ATQA
if(!ReaderReceive(resp, resp_par)) return 0;
memset(p_hi14a_card->uid,0,10);
}
- // clear uid
- if (uid_ptr) {
- memset(uid_ptr,0,10);
+ if (anticollision) {
+ // clear uid
+ if (uid_ptr) {
+ memset(uid_ptr,0,10);
+ }
}
// check for proprietary anticollision:
// SELECT_* (L1: 0x93, L2: 0x95, L3: 0x97)
sel_uid[0] = sel_all[0] = 0x93 + cascade_level * 2;
- // SELECT_ALL
- ReaderTransmit(sel_all, sizeof(sel_all), NULL);
- if (!ReaderReceive(resp, resp_par)) return 0;
-
- if (Demod.collisionPos) { // we had a collision and need to construct the UID bit by bit
- memset(uid_resp, 0, 4);
- uint16_t uid_resp_bits = 0;
- uint16_t collision_answer_offset = 0;
- // anti-collision-loop:
- while (Demod.collisionPos) {
- Dbprintf("Multiple tags detected. Collision after Bit %d", Demod.collisionPos);
- for (uint16_t i = collision_answer_offset; i < Demod.collisionPos; i++, uid_resp_bits++) { // add valid UID bits before collision point
- uint16_t UIDbit = (resp[i/8] >> (i % 8)) & 0x01;
- uid_resp[uid_resp_bits / 8] |= UIDbit << (uid_resp_bits % 8);
+ if (anticollision) {
+ // SELECT_ALL
+ ReaderTransmit(sel_all, sizeof(sel_all), NULL);
+ if (!ReaderReceive(resp, resp_par)) return 0;
+
+ if (Demod.collisionPos) { // we had a collision and need to construct the UID bit by bit
+ memset(uid_resp, 0, 4);
+ uint16_t uid_resp_bits = 0;
+ uint16_t collision_answer_offset = 0;
+ // anti-collision-loop:
+ while (Demod.collisionPos) {
+ Dbprintf("Multiple tags detected. Collision after Bit %d", Demod.collisionPos);
+ for (uint16_t i = collision_answer_offset; i < Demod.collisionPos; i++, uid_resp_bits++) { // add valid UID bits before collision point
+ uint16_t UIDbit = (resp[i/8] >> (i % 8)) & 0x01;
+ uid_resp[uid_resp_bits / 8] |= UIDbit << (uid_resp_bits % 8);
+ }
+ uid_resp[uid_resp_bits/8] |= 1 << (uid_resp_bits % 8); // next time select the card(s) with a 1 in the collision position
+ uid_resp_bits++;
+ // construct anticollosion command:
+ sel_uid[1] = ((2 + uid_resp_bits/8) << 4) | (uid_resp_bits & 0x07); // length of data in bytes and bits
+ for (uint16_t i = 0; i <= uid_resp_bits/8; i++) {
+ sel_uid[2+i] = uid_resp[i];
+ }
+ collision_answer_offset = uid_resp_bits%8;
+ ReaderTransmitBits(sel_uid, 16 + uid_resp_bits, NULL);
+ if (!ReaderReceiveOffset(resp, collision_answer_offset, resp_par)) return 0;
}
- uid_resp[uid_resp_bits/8] |= 1 << (uid_resp_bits % 8); // next time select the card(s) with a 1 in the collision position
- uid_resp_bits++;
- // construct anticollosion command:
- sel_uid[1] = ((2 + uid_resp_bits/8) << 4) | (uid_resp_bits & 0x07); // length of data in bytes and bits
- for (uint16_t i = 0; i <= uid_resp_bits/8; i++) {
- sel_uid[2+i] = uid_resp[i];
+ // finally, add the last bits and BCC of the UID
+ for (uint16_t i = collision_answer_offset; i < (Demod.len-1)*8; i++, uid_resp_bits++) {
+ uint16_t UIDbit = (resp[i/8] >> (i%8)) & 0x01;
+ uid_resp[uid_resp_bits/8] |= UIDbit << (uid_resp_bits % 8);
}
- collision_answer_offset = uid_resp_bits%8;
- ReaderTransmitBits(sel_uid, 16 + uid_resp_bits, NULL);
- if (!ReaderReceiveOffset(resp, collision_answer_offset, resp_par)) return 0;
+
+ } else { // no collision, use the response to SELECT_ALL as current uid
+ memcpy(uid_resp, resp, 4);
}
- // finally, add the last bits and BCC of the UID
- for (uint16_t i = collision_answer_offset; i < (Demod.len-1)*8; i++, uid_resp_bits++) {
- uint16_t UIDbit = (resp[i/8] >> (i%8)) & 0x01;
- uid_resp[uid_resp_bits/8] |= UIDbit << (uid_resp_bits % 8);
+ } else {
+ if (cascade_level < num_cascades - 1) {
+ uid_resp[0] = 0x88;
+ memcpy(uid_resp+1, uid_ptr+cascade_level*3, 3);
+ } else {
+ memcpy(uid_resp, uid_ptr+cascade_level*3, 4);
}
-
- } else { // no collision, use the response to SELECT_ALL as current uid
- memcpy(uid_resp, resp, 4);
}
uid_resp_len = 4;
// Construct SELECT UID command
sel_uid[1] = 0x70; // transmitting a full UID (1 Byte cmd, 1 Byte NVB, 4 Byte UID, 1 Byte BCC, 2 Bytes CRC)
- memcpy(sel_uid+2, uid_resp, 4); // the UID
+ memcpy(sel_uid+2, uid_resp, 4); // the UID received during anticollision, or the provided UID
sel_uid[6] = sel_uid[2] ^ sel_uid[3] ^ sel_uid[4] ^ sel_uid[5]; // calculate and add BCC
AppendCrc14443a(sel_uid, 7); // calculate and add CRC
ReaderTransmit(sel_uid, sizeof(sel_uid), NULL);
// Receive the SAK
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
uid_resp[0] = uid_resp[1];
uid_resp[1] = uid_resp[2];
uid_resp[2] = uid_resp[3];
-
uid_resp_len = 3;
}
- if(uid_ptr) {
+ if(uid_ptr && anticollision) {
memcpy(uid_ptr + (cascade_level*3), uid_resp, uid_resp_len);
}
// non iso14443a compliant tag
if( (sak & 0x20) == 0) return 2;
- // Request for answer to select
- AppendCrc14443a(rats, 2);
- ReaderTransmit(rats, sizeof(rats), NULL);
-
- if (!(len = ReaderReceive(resp, resp_par))) return 0;
+ if (!no_rats) {
+ // Request for answer to select
+ AppendCrc14443a(rats, 2);
+ ReaderTransmit(rats, sizeof(rats), NULL);
-
- if(p_hi14a_card) {
- memcpy(p_hi14a_card->ats, resp, sizeof(p_hi14a_card->ats));
- p_hi14a_card->ats_len = len;
- }
+ if (!(len = ReaderReceive(resp, resp_par))) return 0;
- // reset the PCB block number
- iso14_pcb_blocknum = 0;
+ if(p_hi14a_card) {
+ memcpy(p_hi14a_card->ats, resp, len);
+ p_hi14a_card->ats_len = len;
+ }
- // set default timeout based on ATS
- iso14a_set_ATS_timeout(resp);
+ // reset the PCB block number
+ iso14_pcb_blocknum = 0;
+ // set default timeout based on ATS
+ iso14a_set_ATS_timeout(resp);
+ }
return 1;
}
clear_trace();
}
- set_tracing(TRUE);
+ set_tracing(true);
if(param & ISO14A_REQUEST_TRIGGER) {
- iso14a_set_trigger(TRUE);
+ iso14a_set_trigger(true);
}
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;
- arg0 = iso14443a_select_card(NULL,card,NULL);
+ arg0 = iso14443a_select_card(NULL, card, NULL, true, 0, param & ISO14A_NO_RATS);
cmd_send(CMD_ACK,arg0,card->uidlen,0,buf,sizeof(iso14a_card_select_t));
}
}
}
if(param & ISO14A_REQUEST_TRIGGER) {
- iso14a_set_trigger(FALSE);
+ iso14a_set_trigger(false);
}
if(param & ISO14A_NO_DISCONNECT) {
BigBuf_free();
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
byte_t nt_diff = 0;
uint8_t par[1] = {0}; // maximum 8 Bytes to be sent here, 1 byte parity is therefore enough
static byte_t par_low = 0;
- bool led_on = TRUE;
+ bool led_on = true;
uint8_t uid[10] ={0};
uint32_t cuid;
uint32_t select_time;
uint32_t halt_time;
- for(uint16_t i = 0; TRUE; i++) {
+ for(uint16_t i = 0; true; i++) {
LED_C_ON();
WDT_HIT();
SpinDelay(100);
}
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
+ if(!iso14443a_select_card(uid, NULL, &cuid, true, 0, true)) {
if (MF_DBGLEVEL >= 1) Dbprintf("Mifare: Can't select card");
continue;
}
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
- set_tracing(FALSE);
+ set_tracing(false);
}
-typedef struct {
- uint32_t cuid;
- uint8_t sector;
- uint8_t keytype;
- uint32_t nonce;
- uint32_t ar;
- uint32_t nr;
- uint32_t nonce2;
- uint32_t ar2;
- uint32_t nr2;
-} nonces_t;
-
/**
*MIFARE 1K simulate.
*
* FLAG_7B_UID_IN_DATA - means that there is a 7-byte UID in the data-section, we're expected to use that
* FLAG_10B_UID_IN_DATA - use 10-byte UID in the data-section not finished
* FLAG_NR_AR_ATTACK - means we should collect NR_AR responses for bruteforcing later
+ * FLAG_RANDOM_NONCE - means we should generate some pseudo-random nonce data (only allows moebius attack)
*@param exitAfterNReads, exit simulation after n blocks have been read, 0 is infinite ...
* (unless reader attack mode enabled then it runs util it gets enough nonces to recover all keys attmpted)
*/
//Here, we collect UID,sector,keytype,NT,AR,NR,NT2,AR2,NR2
// This will be used in the reader-only attack.
- //allow collecting up to 8 sets of nonces to allow recovery of up to 8 keys
- #define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
- nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; //*2 for 2 separate attack types
+ //allow collecting up to 7 sets of nonces to allow recovery of up to 7 keys
+ #define ATTACK_KEY_COUNT 7 // keep same as define in cmdhfmf.c -> readerAttack() (Cannot be more than 7)
+ nonces_t ar_nr_resp[ATTACK_KEY_COUNT*2]; //*2 for 2 separate attack types (nml, moebius)
memset(ar_nr_resp, 0x00, sizeof(ar_nr_resp));
- uint8_t ar_nr_collected[ATTACK_KEY_COUNT*2];
+ uint8_t ar_nr_collected[ATTACK_KEY_COUNT*2]; //*2 for 2nd attack type (moebius)
memset(ar_nr_collected, 0x00, sizeof(ar_nr_collected));
- bool gettingMoebius = false;
uint8_t nonce1_count = 0;
uint8_t nonce2_count = 0;
uint8_t moebius_n_count = 0;
+ bool gettingMoebius = false;
uint8_t mM = 0; //moebius_modifier for collection storage
// Authenticate response - nonce
- uint32_t nonce = bytes_to_num(rAUTH_NT, 4);
+ uint32_t nonce;
+ if (flags & FLAG_RANDOM_NONCE) {
+ nonce = prand();
+ } else {
+ nonce = bytes_to_num(rAUTH_NT, 4);
+ }
//-- Determine the UID
// Can be set from emulator memory, incoming data
// clear trace
clear_trace();
- set_tracing(TRUE);
+ set_tracing(true);
- bool finished = FALSE;
+ bool finished = false;
bool button_pushed = BUTTON_PRESS();
while (!button_pushed && !finished && !usb_poll_validate_length()) {
WDT_HIT();
cardSTATE_TO_IDLE();
LED_A_ON();
}
- }
- if (cardSTATE == MFEMUL_NOFIELD) continue;
+ }
+ if (cardSTATE == MFEMUL_NOFIELD) {
+ button_pushed = BUTTON_PRESS();
+ continue;
+ }
//Now, get data
res = EmGetCmd(receivedCmd, &len, receivedCmd_par);
} else if (res == 1) {
break; //return value 1 means button press
}
-
+
// REQ or WUP request in ANY state and WUP in HALTED state
if (len == 1 && ((receivedCmd[0] == ISO14443A_CMD_REQA && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == ISO14443A_CMD_WUPA)) {
selTimer = GetTickCount();
LED_C_OFF();
crypto1_destroy(pcs);
cardAUTHKEY = 0xff;
+ if (flags & FLAG_RANDOM_NONCE) {
+ nonce = prand();
+ }
continue;
}
case MFEMUL_NOFIELD:
case MFEMUL_HALTED:
case MFEMUL_IDLE:{
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
case MFEMUL_SELECT1:{
}
case MFEMUL_SELECT3:{
if (!len) {
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
// select all cl3 - 0x97 0x20
case MFEMUL_AUTH1:{
if( len != 8) {
cardSTATE_TO_IDLE();
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
// switch to moebius collection
gettingMoebius = true;
mM = ATTACK_KEY_COUNT;
- nonce = nonce*7;
+ if (flags & FLAG_RANDOM_NONCE) {
+ nonce = prand();
+ } else {
+ nonce = nonce*7;
+ }
break;
}
} else {
// reader to do a WUPA after a while. /Martin
// -- which is the correct response. /piwi
cardSTATE_TO_IDLE();
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
}
case MFEMUL_SELECT2:{
if (!len) {
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
// select all cl2 - 0x95 0x20
// i guess there is a command). go into the work state.
if (len != 4) {
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
cardSTATE = MFEMUL_WORK;
case MFEMUL_WORK:{
if (len == 0) {
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
}
if(len != 4) {
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
LED_C_OFF();
cardSTATE = MFEMUL_HALTED;
if (MF_DBGLEVEL >= 4) Dbprintf("--> HALTED. Selected time: %d ms", GetTickCount() - selTimer);
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
break;
}
// RATS
cardSTATE = MFEMUL_WORK;
} else {
cardSTATE_TO_IDLE();
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
}
break;
}
cardSTATE_TO_IDLE();
break;
}
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
cardINTREG = cardINTREG + ans;
cardSTATE = MFEMUL_WORK;
break;
cardSTATE_TO_IDLE();
break;
}
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
cardINTREG = cardINTREG - ans;
cardSTATE = MFEMUL_WORK;
break;
cardSTATE_TO_IDLE();
break;
}
- LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, TRUE);
+ LogTrace(Uart.output, Uart.len, Uart.startTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime*16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
cardSTATE = MFEMUL_WORK;
break;
}
//Send the collected ar_nr in the response
cmd_send(CMD_ACK,CMD_SIMULATE_MIFARE_CARD,button_pushed,0,&ar_nr_resp,sizeof(ar_nr_resp));
}
-
}
LEDsoff();
// init trace buffer
clear_trace();
- set_tracing(TRUE);
+ 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.
uint8_t previous_data = 0;
int maxDataLen = 0;
int dataLen = 0;
- bool ReaderIsActive = FALSE;
- bool TagIsActive = FALSE;
+ bool ReaderIsActive = false;
+ bool TagIsActive = false;
// Set up the demodulator for tag -> reader responses.
DemodInit(receivedResponse, receivedResponsePar);
MfSniffInit();
// And now we loop, receiving samples.
- for(uint32_t sniffCounter = 0; TRUE; ) {
+ for(uint32_t sniffCounter = 0; true; ) {
if(BUTTON_PRESS()) {
DbpString("cancelled by button");
sniffCounter = 0;
data = dmaBuf;
maxDataLen = 0;
- ReaderIsActive = FALSE;
- TagIsActive = FALSE;
+ ReaderIsActive = false;
+ TagIsActive = false;
FpgaSetupSscDma((uint8_t *)dmaBuf, DMA_BUFFER_SIZE); // set transfer address and number of bytes. Start transfer.
}
}
uint8_t readerdata = (previous_data & 0xF0) | (*data >> 4);
if(MillerDecoding(readerdata, (sniffCounter-1)*4)) {
LED_C_INV();
- if (MfSniffLogic(receivedCmd, Uart.len, Uart.parity, Uart.bitCount, TRUE)) break;
+ if (MfSniffLogic(receivedCmd, Uart.len, Uart.parity, Uart.bitCount, true)) break;
/* And ready to receive another command. */
UartInit(receivedCmd, receivedCmdPar);
if(ManchesterDecoding(tagdata, 0, (sniffCounter-1)*4)) {
LED_C_INV();
- if (MfSniffLogic(receivedResponse, Demod.len, Demod.parity, Demod.bitCount, FALSE)) break;
+ if (MfSniffLogic(receivedResponse, Demod.len, Demod.parity, Demod.bitCount, false)) break;
// And ready to receive another response.
DemodReset();
projects / proxmark3-svn / blobdiff