static int tracing = TRUE;
static uint32_t iso14a_timeout;
-// CARD TO READER
+// CARD TO READER - manchester
// Sequence D: 11110000 modulation with subcarrier during first half
// Sequence E: 00001111 modulation with subcarrier during second half
// Sequence F: 00000000 no modulation with subcarrier
-// READER TO CARD
+// READER TO CARD - miller
// Sequence X: 00001100 drop after half a period
// Sequence Y: 00000000 no drop
// Sequence Z: 11000000 drop at start
1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1
};
-// BIG CHANGE - UNDERSTAND THIS BEFORE WE COMMIT
-#define RECV_CMD_OFFSET 3032
-#define RECV_RES_OFFSET 3096
-#define DMA_BUFFER_OFFSET 3160
-#define DMA_BUFFER_SIZE 4096
-#define TRACE_LENGTH 3000
-// card emulator memory
-#define CARD_MEMORY 7260
-#define CARD_MEMORY_LEN 1024
-
uint8_t trigger = 0;
void iso14a_set_trigger(int enable) {
trigger = enable;
}
+void iso14a_clear_tracelen(void) {
+ traceLen = 0;
+}
+void iso14a_set_tracing(int enable) {
+ tracing = enable;
+}
+
//-----------------------------------------------------------------------------
// Generate the parity value for a byte sequence
//
//-----------------------------------------------------------------------------
// Prepare tag messages
//-----------------------------------------------------------------------------
-static void CodeIso14443aAsTag(const uint8_t *cmd, int len)
+static void CodeIso14443aAsTagPar(const uint8_t *cmd, int len, uint32_t dwParity)
{
- int i;
- int oddparity;
+ int i;
+// int oddparity;
- ToSendReset();
+ ToSendReset();
// Correction bit, might be removed when not needed
ToSendStuffBit(0);
ToSendStuffBit(0);
ToSendStuffBit(0);
ToSendStuffBit(0);
-
+
// Send startbit
ToSend[++ToSendMax] = SEC_D;
- for(i = 0; i < len; i++) {
- int j;
- uint8_t b = cmd[i];
+ for(i = 0; i < len; i++) {
+ int j;
+ uint8_t b = cmd[i];
// Data bits
- oddparity = 0x01;
+// oddparity = 0x01;
for(j = 0; j < 8; j++) {
- oddparity ^= (b & 1);
+// oddparity ^= (b & 1);
if(b & 1) {
ToSend[++ToSendMax] = SEC_D;
} else {
ToSend[++ToSendMax] = SEC_E;
- }
- b >>= 1;
- }
+ }
+ b >>= 1;
+ }
- // Parity bit
- if(oddparity) {
- ToSend[++ToSendMax] = SEC_D;
+ // Get the parity bit
+ if ((dwParity >> i) & 0x01) {
+ ToSend[++ToSendMax] = SEC_D;
} else {
ToSend[++ToSendMax] = SEC_E;
}
- }
+
+ // Parity bit
+// if(oddparity) {
+// ToSend[++ToSendMax] = SEC_D;
+// } else {
+// ToSend[++ToSendMax] = SEC_E;
+// }
+
+// if (oddparity != ((dwParity >> i) & 0x01))
+// Dbprintf("par error. i=%d", i);
+ }
- // Send stopbit
- ToSend[++ToSendMax] = SEC_F;
+ // Send stopbit
+ ToSend[++ToSendMax] = SEC_F;
// Flush the buffer in FPGA!!
for(i = 0; i < 5; i++) {
- ToSend[++ToSendMax] = SEC_F;
+// ToSend[++ToSendMax] = SEC_F;
}
- // Convert from last byte pos to length
- ToSendMax++;
+ // Convert from last byte pos to length
+ ToSendMax++;
// Add a few more for slop
- ToSend[ToSendMax++] = 0x00;
- ToSend[ToSendMax++] = 0x00;
- //ToSendMax += 2;
+// ToSend[ToSendMax++] = 0x00;
+// ToSend[ToSendMax++] = 0x00;
+}
+
+static void CodeIso14443aAsTag(const uint8_t *cmd, int len){
+ CodeIso14443aAsTagPar(cmd, len, GetParity(cmd, len));
}
//-----------------------------------------------------------------------------
// This is to send a NACK kind of answer, its only 3 bits, I know it should be 4
//-----------------------------------------------------------------------------
-static void CodeStrangeAnswer()
+static void CodeStrangeAnswerAsTag()
{
int i;
// Convert from last byte pos to length
ToSendMax++;
+}
- // Add a few more for slop
- ToSend[ToSendMax++] = 0x00;
- ToSend[ToSendMax++] = 0x00;
- //ToSendMax += 2;
+static void Code4bitAnswerAsTag(uint8_t cmd)
+{
+ int i;
+
+ ToSendReset();
+
+ // Correction bit, might be removed when not needed
+ ToSendStuffBit(0);
+ ToSendStuffBit(0);
+ ToSendStuffBit(0);
+ ToSendStuffBit(0);
+ ToSendStuffBit(1); // 1
+ ToSendStuffBit(0);
+ ToSendStuffBit(0);
+ ToSendStuffBit(0);
+
+ // Send startbit
+ ToSend[++ToSendMax] = SEC_D;
+
+ uint8_t b = cmd;
+ for(i = 0; i < 4; i++) {
+ if(b & 1) {
+ ToSend[++ToSendMax] = SEC_D;
+ } else {
+ ToSend[++ToSendMax] = SEC_E;
+ }
+ b >>= 1;
+ }
+
+ // Send stopbit
+ ToSend[++ToSendMax] = SEC_F;
+
+ // Flush the buffer in FPGA!!
+ for(i = 0; i < 5; i++) {
+ ToSend[++ToSendMax] = SEC_F;
+ }
+
+ // Convert from last byte pos to length
+ ToSendMax++;
}
//-----------------------------------------------------------------------------
memcpy(resp3a, ToSend, ToSendMax); resp3aLen = ToSendMax;
// Strange answer is an example of rare message size (3 bits)
- CodeStrangeAnswer();
+ CodeStrangeAnswerAsTag();
memcpy(resp4, ToSend, ToSendMax); resp4Len = ToSendMax;
// Authentication answer (random nonce)
volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
if(MillerDecoding((b & 0xf0) >> 4)) {
*len = Uart.byteCnt;
- if (tracing) LogTrace(received, *len, 0, GetParity(received, *len), TRUE);
+ if (tracing) LogTrace(received, *len, GetDeltaCountUS(), Uart.parityBits, TRUE);
return 0;
}
if(MillerDecoding(b & 0x0f)) {
*len = Uart.byteCnt;
- if (tracing) LogTrace(received, *len, 0, GetParity(received, *len), TRUE);
+ if (tracing) LogTrace(received, *len, GetDeltaCountUS(), Uart.parityBits, TRUE);
return 0;
}
}
}
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
if(i > respLen) {
- b = 0x00;
+ b = 0xff; // was 0x00
u++;
} else {
b = resp[i];
return 0;
}
-static int EmSendCmdEx(uint8_t *resp, int respLen, int correctionNeeded){
- CodeIso14443aAsTag(resp, respLen);
+int EmSend4bitEx(uint8_t resp, int correctionNeeded){
+ Code4bitAnswerAsTag(resp);
+ int res = EmSendCmd14443aRaw(ToSend, ToSendMax, correctionNeeded);
+ if (tracing) LogTrace(&resp, 1, GetDeltaCountUS(), GetParity(&resp, 1), FALSE);
+ return res;
+}
+
+int EmSend4bit(uint8_t resp){
+ return EmSend4bitEx(resp, 0);
+}
+
+int EmSendCmdExPar(uint8_t *resp, int respLen, int correctionNeeded, uint32_t par){
+ CodeIso14443aAsTagPar(resp, respLen, par);
int res = EmSendCmd14443aRaw(ToSend, ToSendMax, correctionNeeded);
- if (tracing) LogTrace(resp, respLen, 0, GetParity(resp, respLen), FALSE);
+ if (tracing) LogTrace(resp, respLen, GetDeltaCountUS(), par, FALSE);
return res;
}
-static int EmSendCmd(uint8_t *resp, int respLen){
- return EmSendCmdEx(resp, respLen, 0);
+int EmSendCmdEx(uint8_t *resp, int respLen, int correctionNeeded){
+ return EmSendCmdExPar(resp, respLen, correctionNeeded, GetParity(resp, respLen));
+}
+
+int EmSendCmd(uint8_t *resp, int respLen){
+ return EmSendCmdExPar(resp, respLen, 0, GetParity(resp, respLen));
+}
+
+int EmSendCmdPar(uint8_t *resp, int respLen, uint32_t par){
+ return EmSendCmdExPar(resp, respLen, 0, par);
}
//-----------------------------------------------------------------------------
if (MF_DBGLEVEL >= 1) DbpString("COMMAND mifare FINISHED");
}
-//-----------------------------------------------------------------------------
-// Select, Authenticaate, Read an MIFARE tag.
-// read block
-//-----------------------------------------------------------------------------
-void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
-{
- // params
- uint8_t blockNo = arg0;
- uint8_t keyType = arg1;
- uint64_t ui64Key = 0;
- ui64Key = bytes_to_num(datain, 6);
-
- // variables
- byte_t isOK = 0;
- byte_t dataoutbuf[16];
- uint8_t uid[8];
- uint32_t cuid;
- struct Crypto1State mpcs = {0, 0};
- struct Crypto1State *pcs;
- pcs = &mpcs;
-
- // clear trace
- traceLen = 0;
-// tracing = false;
-
- iso14443a_setup();
-
- LED_A_ON();
- LED_B_OFF();
- LED_C_OFF();
-
- while (true) {
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
- break;
- };
-
- if(mifare_classic_readblock(pcs, cuid, blockNo, dataoutbuf)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Read block error");
- break;
- };
-
- if(mifare_classic_halt(pcs, cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
- break;
- };
-
- isOK = 1;
- break;
- }
-
- // ----------------------------- crypto1 destroy
- crypto1_destroy(pcs);
-
- if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
-
- // add trace trailer
- uid[0] = 0xff;
- uid[1] = 0xff;
- uid[2] = 0xff;
- uid[3] = 0xff;
- LogTrace(uid, 4, 0, 0, TRUE);
-
- UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
- memcpy(ack.d.asBytes, dataoutbuf, 16);
-
- LED_B_ON();
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
-
-
- // Thats it...
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LEDsoff();
-// tracing = TRUE;
-
-}
-
-//-----------------------------------------------------------------------------
-// Select, Authenticaate, Read an MIFARE tag.
-// read sector (data = 4 x 16 bytes = 64 bytes)
-//-----------------------------------------------------------------------------
-void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
-{
- // params
- uint8_t sectorNo = arg0;
- uint8_t keyType = arg1;
- uint64_t ui64Key = 0;
- ui64Key = bytes_to_num(datain, 6);
-
- // variables
- byte_t isOK = 0;
- byte_t dataoutbuf[16 * 4];
- uint8_t uid[8];
- uint32_t cuid;
- struct Crypto1State mpcs = {0, 0};
- struct Crypto1State *pcs;
- pcs = &mpcs;
-
- // clear trace
- traceLen = 0;
-// tracing = false;
-
- iso14443a_setup();
-
- LED_A_ON();
- LED_B_OFF();
- LED_C_OFF();
-
- while (true) {
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- if(mifare_classic_auth(pcs, cuid, sectorNo * 4, keyType, ui64Key, AUTH_FIRST)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
- break;
- };
-
- if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 0, dataoutbuf + 16 * 0)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Read block 0 error");
- break;
- };
- if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 1, dataoutbuf + 16 * 1)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Read block 1 error");
- break;
- };
- if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 2, dataoutbuf + 16 * 2)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Read block 2 error");
- break;
- };
- if(mifare_classic_readblock(pcs, cuid, sectorNo * 4 + 3, dataoutbuf + 16 * 3)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Read block 3 error");
- break;
- };
-
- if(mifare_classic_halt(pcs, cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
- break;
- };
-
- isOK = 1;
- break;
- }
-
- // ----------------------------- crypto1 destroy
- crypto1_destroy(pcs);
-
- if (MF_DBGLEVEL >= 2) DbpString("READ SECTOR FINISHED");
-
- // add trace trailer
- uid[0] = 0xff;
- uid[1] = 0xff;
- uid[2] = 0xff;
- uid[3] = 0xff;
- LogTrace(uid, 4, 0, 0, TRUE);
-
- UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
- memcpy(ack.d.asBytes, dataoutbuf, 16 * 2);
-
- LED_B_ON();
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
-
- SpinDelay(100);
-
- memcpy(ack.d.asBytes, dataoutbuf + 16 * 2, 16 * 2);
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
-
- // Thats it...
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LEDsoff();
-// tracing = TRUE;
-
-}
-
-//-----------------------------------------------------------------------------
-// Select, Authenticaate, Read an MIFARE tag.
-// read block
-//-----------------------------------------------------------------------------
-void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
-{
- // params
- uint8_t blockNo = arg0;
- uint8_t keyType = arg1;
- uint64_t ui64Key = 0;
- byte_t blockdata[16];
-
- ui64Key = bytes_to_num(datain, 6);
- memcpy(blockdata, datain + 10, 16);
-
- // variables
- byte_t isOK = 0;
- uint8_t uid[8];
- uint32_t cuid;
- struct Crypto1State mpcs = {0, 0};
- struct Crypto1State *pcs;
- pcs = &mpcs;
-
- // clear trace
- traceLen = 0;
-// tracing = false;
-
- iso14443a_setup();
-
- LED_A_ON();
- LED_B_OFF();
- LED_C_OFF();
-
- while (true) {
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth error");
- break;
- };
-
- if(mifare_classic_writeblock(pcs, cuid, blockNo, blockdata)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
- break;
- };
-
- if(mifare_classic_halt(pcs, cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
- break;
- };
-
- isOK = 1;
- break;
- }
-
- // ----------------------------- crypto1 destroy
- crypto1_destroy(pcs);
-
- if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
-
- // add trace trailer
- uid[0] = 0xff;
- uid[1] = 0xff;
- uid[2] = 0xff;
- uid[3] = 0xff;
- LogTrace(uid, 4, 0, 0, TRUE);
-
- UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
-
- LED_B_ON();
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
-
-
- // Thats it...
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LEDsoff();
-// tracing = TRUE;
-
-}
-
-// Return 1 if the nonce is invalid else return 0
-int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, byte_t * parity) {
- return ((oddparity((Nt >> 24) & 0xFF) == ((parity[0]) ^ oddparity((NtEnc >> 24) & 0xFF) ^ BIT(Ks1,16))) & \
- (oddparity((Nt >> 16) & 0xFF) == ((parity[1]) ^ oddparity((NtEnc >> 16) & 0xFF) ^ BIT(Ks1,8))) & \
- (oddparity((Nt >> 8) & 0xFF) == ((parity[2]) ^ oddparity((NtEnc >> 8) & 0xFF) ^ BIT(Ks1,0)))) ? 1 : 0;
-}
-
-
-//-----------------------------------------------------------------------------
-// MIFARE nested authentication.
-//
-//-----------------------------------------------------------------------------
-void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
-{
- // params
- uint8_t blockNo = arg0;
- uint8_t keyType = arg1;
- uint8_t targetBlockNo = arg2 & 0xff;
- uint8_t targetKeyType = (arg2 >> 8) & 0xff;
- uint64_t ui64Key = 0;
-
- ui64Key = bytes_to_num(datain, 6);
-
- // variables
- int rtr, i, j, m, len;
- int davg, dmin, dmax;
- uint8_t uid[8];
- uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;
- uint8_t par_array[4];
- nestedVector nvector[NES_MAX_INFO + 1][10];
- int nvectorcount[NES_MAX_INFO + 1];
- int ncount = 0;
- UsbCommand ack = {CMD_ACK, {0, 0, 0}};
- struct Crypto1State mpcs = {0, 0};
- struct Crypto1State *pcs;
- pcs = &mpcs;
- uint8_t* receivedAnswer = mifare_get_bigbufptr();
-
- //init
- for (i = 0; i < NES_MAX_INFO + 1; i++) nvectorcount[i] = 11; // 11 - empty block;
-
- // clear trace
- traceLen = 0;
- tracing = false;
-
- iso14443a_setup();
-
- LED_A_ON();
- LED_B_ON();
- LED_C_OFF();
-
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(200);
-
- davg = dmax = 0;
- dmin = 2000;
-
- // test nonce distance
- for (rtr = 0; rtr < 10; rtr++) {
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(100);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-
- // Test if the action was cancelled
- if(BUTTON_PRESS()) {
- break;
- }
-
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
- break;
- };
-
- if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_NESTED, &nt2)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error");
- break;
- };
-
- nttmp = prng_successor(nt1, 500);
- for (i = 501; i < 2000; i++) {
- nttmp = prng_successor(nttmp, 1);
- if (nttmp == nt2) break;
- }
-
- if (i != 2000) {
- davg += i;
- if (dmin > i) dmin = i;
- if (dmax < i) dmax = i;
- if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2=%08x distance=%d", rtr, nt1, nt2, i);
- }
- }
-
- if (rtr == 0) return;
-
- davg = davg / rtr;
- if (MF_DBGLEVEL >= 3) Dbprintf("distance: min=%d max=%d avg=%d", dmin, dmax, davg);
-
- LED_B_OFF();
-
-// -------------------------------------------------------------------------------------------------
-
- LED_C_ON();
-
- // get crypted nonces for target sector
- for (rtr = 0; rtr < NS_RETRIES_GETNONCE; rtr++) {
- if (MF_DBGLEVEL >= 4) Dbprintf("------------------------------");
-
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(100);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-
- // Test if the action was cancelled
- if(BUTTON_PRESS()) {
- break;
- }
-
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- if(mifare_classic_authex(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST, &nt1)) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth1 error");
- break;
- };
-
- // nested authentication
- len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par);
- if (len != 4) {
- if (MF_DBGLEVEL >= 1) Dbprintf("Auth2 error len=%d", len);
- break;
- };
-
- nt2 = bytes_to_num(receivedAnswer, 4);
- if (MF_DBGLEVEL >= 4) Dbprintf("r=%d nt1=%08x nt2enc=%08x nt2par=%08x", rtr, nt1, nt2, par);
-
- // Parity validity check
- for (i = 0; i < 4; i++) {
- par_array[i] = (oddparity(receivedAnswer[i]) != ((par & 0x08) >> 3));
- par = par << 1;
- }
-
- ncount = 0;
- for (m = dmin - NS_TOLERANCE; m < dmax + NS_TOLERANCE; m++) {
- nttest = prng_successor(nt1, m);
- ks1 = nt2 ^ nttest;
-
- if (valid_nonce(nttest, nt2, ks1, par_array) && (ncount < 11)){
-
- nvector[NES_MAX_INFO][ncount].nt = nttest;
- nvector[NES_MAX_INFO][ncount].ks1 = ks1;
- ncount++;
- nvectorcount[NES_MAX_INFO] = ncount;
- if (MF_DBGLEVEL >= 4) Dbprintf("valid m=%d ks1=%08x nttest=%08x", m, ks1, nttest);
- }
-
- }
-
- // select vector with length less than got
- if (nvectorcount[NES_MAX_INFO] != 0) {
- m = NES_MAX_INFO;
-
- for (i = 0; i < NES_MAX_INFO; i++)
- if (nvectorcount[i] > 10) {
- m = i;
- break;
- }
-
- if (m == NES_MAX_INFO)
- for (i = 0; i < NES_MAX_INFO; i++)
- if (nvectorcount[NES_MAX_INFO] < nvectorcount[i]) {
- m = i;
- break;
- }
-
- if (m != NES_MAX_INFO) {
- for (i = 0; i < nvectorcount[m]; i++) {
- nvector[m][i] = nvector[NES_MAX_INFO][i];
- }
- nvectorcount[m] = nvectorcount[NES_MAX_INFO];
- }
- }
- }
-
- LED_C_OFF();
-
- // ----------------------------- crypto1 destroy
- crypto1_destroy(pcs);
-
- // add trace trailer
- uid[0] = 0xff;
- uid[1] = 0xff;
- uid[2] = 0xff;
- uid[3] = 0xff;
- LogTrace(uid, 4, 0, 0, TRUE);
-
- for (i = 0; i < NES_MAX_INFO; i++) {
- if (nvectorcount[i] > 10) continue;
-
- for (j = 0; j < nvectorcount[i]; j += 5) {
- ncount = nvectorcount[i] - j;
- if (ncount > 5) ncount = 5;
-
- ack.arg[0] = 0; // isEOF = 0
- ack.arg[1] = ncount;
- ack.arg[2] = targetBlockNo + (targetKeyType * 0x100);
- memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
-
- memcpy(ack.d.asBytes, &cuid, 4);
- for (m = 0; m < ncount; m++) {
- memcpy(ack.d.asBytes + 8 + m * 8 + 0, &nvector[i][m + j].nt, 4);
- memcpy(ack.d.asBytes + 8 + m * 8 + 4, &nvector[i][m + j].ks1, 4);
- }
-
- LED_B_ON();
- SpinDelay(100);
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
- }
- }
-
- // finalize list
- ack.arg[0] = 1; // isEOF = 1
- ack.arg[1] = 0;
- ack.arg[2] = 0;
- memset(ack.d.asBytes, 0x00, sizeof(ack.d.asBytes));
-
- LED_B_ON();
- SpinDelay(300);
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
-
- if (MF_DBGLEVEL >= 4) DbpString("NESTED FINISHED");
-
- // Thats it...
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LEDsoff();
-
- tracing = TRUE;
-}
-
-//-----------------------------------------------------------------------------
-// MIFARE check keys. key count up to 8.
-//
-//-----------------------------------------------------------------------------
-void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
-{
- // params
- uint8_t blockNo = arg0;
- uint8_t keyType = arg1;
- uint8_t keyCount = arg2;
- uint64_t ui64Key = 0;
-
- // variables
- int i;
- byte_t isOK = 0;
- uint8_t uid[8];
- uint32_t cuid;
- struct Crypto1State mpcs = {0, 0};
- struct Crypto1State *pcs;
- pcs = &mpcs;
-
- // clear debug level
- int OLD_MF_DBGLEVEL = MF_DBGLEVEL;
- MF_DBGLEVEL = MF_DBG_NONE;
-
- // clear trace
- traceLen = 0;
- tracing = TRUE;
-
- iso14443a_setup();
-
- LED_A_ON();
- LED_B_OFF();
- LED_C_OFF();
-
- SpinDelay(300);
- for (i = 0; i < keyCount; i++) {
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- SpinDelay(100);
- FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
-
- if(!iso14443a_select_card(uid, NULL, &cuid)) {
- if (OLD_MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
- break;
- };
-
- ui64Key = bytes_to_num(datain + i * 6, 6);
- if(mifare_classic_auth(pcs, cuid, blockNo, keyType, ui64Key, AUTH_FIRST)) {
- continue;
- };
-
- isOK = 1;
- break;
- }
-
- // ----------------------------- crypto1 destroy
- crypto1_destroy(pcs);
-
- // add trace trailer
- uid[0] = 0xff;
- uid[1] = 0xff;
- uid[2] = 0xff;
- uid[3] = 0xff;
- LogTrace(uid, 4, 0, 0, TRUE);
-
- UsbCommand ack = {CMD_ACK, {isOK, 0, 0}};
- if (isOK) memcpy(ack.d.asBytes, datain + i * 6, 6);
-
- LED_B_ON();
- UsbSendPacket((uint8_t *)&ack, sizeof(UsbCommand));
- LED_B_OFF();
-
- // Thats it...
- FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
- LEDsoff();
-
- // restore debug level
- MF_DBGLEVEL = OLD_MF_DBGLEVEL;
-}
//-----------------------------------------------------------------------------
// MIFARE 1K simulate.
void Mifare1ksim(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
{
int cardSTATE = MFEMUL_NOFIELD;
+ int _7BUID = 0;
int vHf = 0; // in mV
- int res, i;
+ int nextCycleTimeout = 0;
+ int res;
uint32_t timer = 0;
uint32_t selTimer = 0;
uint32_t authTimer = 0;
uint32_t par = 0;
int len = 0;
- uint8_t bt;
+ uint8_t cardWRBL = 0;
uint8_t cardAUTHSC = 0;
uint8_t cardAUTHKEY = 0xff; // no authentication
uint32_t cuid = 0;
uint64_t key64 = 0xffffffffffffULL;
- uint8_t* receivedCmd = mifare_get_bigbufptr();
+ uint8_t* receivedCmd = eml_get_bigbufptr_recbuf();
+ uint8_t *response = eml_get_bigbufptr_sendbuf();
- static uint8_t rATQA[] = {0x04, 0x00}; // Mifare classic 1k
+ static uint8_t rATQA[] = {0x04, 0x00}; // Mifare classic 1k 4BUID
static uint8_t rUIDBCC1[] = {0xde, 0xad, 0xbe, 0xaf, 0x62};
static uint8_t rUIDBCC2[] = {0xde, 0xad, 0xbe, 0xaf, 0x62}; // !!!
static uint8_t rSAK[] = {0x08, 0xb6, 0xdd};
+ static uint8_t rSAK1[] = {0x04, 0xda, 0x17};
static uint8_t rAUTH_NT[] = {0x1a, 0xac, 0xff, 0x4f};
static uint8_t rAUTH_AT[] = {0x00, 0x00, 0x00, 0x00};
- static uint8_t cmdBuf[18];
// clear trace
traceLen = 0;
tracing = true;
+ // get UID from emul memory
+ emlGetMemBt(receivedCmd, 7, 1);
+ _7BUID = !(receivedCmd[0] == 0x00);
+ if (!_7BUID) { // ---------- 4BUID
+ rATQA[0] = 0x04;
+
+ emlGetMemBt(rUIDBCC1, 0, 4);
+ rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
+ } else { // ---------- 7BUID
+ rATQA[0] = 0x44;
+
+ rUIDBCC1[0] = 0x88;
+ emlGetMemBt(&rUIDBCC1[1], 0, 3);
+ rUIDBCC1[4] = rUIDBCC1[0] ^ rUIDBCC1[1] ^ rUIDBCC1[2] ^ rUIDBCC1[3];
+ emlGetMemBt(rUIDBCC2, 3, 4);
+ rUIDBCC2[4] = rUIDBCC2[0] ^ rUIDBCC2[1] ^ rUIDBCC2[2] ^ rUIDBCC2[3];
+ }
+
// -------------------------------------- test area
// Authenticate response - nonce
- uint8_t *resp1 = (((uint8_t *)BigBuf) + CARD_MEMORY);
+ uint8_t *resp1 = (((uint8_t *)BigBuf) + EML_RESPONSES);
int resp1Len;
- uint8_t *resp2 = (((uint8_t *)BigBuf) + CARD_MEMORY + 200);
- int resp2Len;
+// uint8_t *resp2 = (((uint8_t *)BigBuf) + EML_RESPONSES + 200);
+// int resp2Len;
CodeIso14443aAsTag(rAUTH_NT, sizeof(rAUTH_NT));
memcpy(resp1, ToSend, ToSendMax); resp1Len = ToSendMax;
uint32_t rn_enc = 0x98d76b77; // !!!!!!!!!!!!!!!!!
uint32_t ans = 0;
cuid = bytes_to_num(rUIDBCC1, 4);
-
+/*
crypto1_create(pcs, key64);
crypto1_word(pcs, cuid ^ nonce, 0);
crypto1_word(pcs, rn_enc , 1);
CodeIso14443aAsTag(rAUTH_AT, sizeof(rAUTH_AT));
memcpy(resp2, ToSend, ToSendMax); resp2Len = ToSendMax;
Dbprintf("crypto auth time: %d", GetTickCount() - timer);
-
+*/
// -------------------------------------- END test area
+ // start mkseconds counter
+ StartCountUS();
// We need to listen to the high-frequency, peak-detected path.
SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_LISTEN);
SpinDelay(200);
-Dbprintf("--> start");
+ Dbprintf("--> start. 7buid=%d", _7BUID);
+ // calibrate mkseconds counter
+ GetDeltaCountUS();
while (true) {
WDT_HIT();
+ if(BUTTON_PRESS()) {
+ break;
+ }
+
// find reader field
// Vref = 3300mV, and an 10:1 voltage divider on the input
// can measure voltages up to 33000 mV
}
if (cardSTATE != MFEMUL_NOFIELD) {
- res = EmGetCmd(receivedCmd, &len, 100);
+ res = EmGetCmd(receivedCmd, &len, 100); // (+ nextCycleTimeout)
if (res == 2) {
cardSTATE = MFEMUL_NOFIELD;
LEDsoff();
if(res) break;
}
- if(BUTTON_PRESS()) {
- break;
- }
+ nextCycleTimeout = 0;
+
// if (len) Dbprintf("len:%d cmd: %02x %02x %02x %02x", len, receivedCmd[0], receivedCmd[1], receivedCmd[2], receivedCmd[3]);
if (len != 4 && cardSTATE != MFEMUL_NOFIELD) { // len != 4 <---- speed up the code 4 authentication
- // REQ or WUP request in ANY state and WUP in HALTED state
+ // REQ or WUP request in ANY state and WUP in HALTED state
if (len == 1 && ((receivedCmd[0] == 0x26 && cardSTATE != MFEMUL_HALTED) || receivedCmd[0] == 0x52)) {
selTimer = GetTickCount();
EmSendCmdEx(rATQA, sizeof(rATQA), (receivedCmd[0] == 0x52));
// select all
if (len == 2 && (receivedCmd[0] == 0x93 && receivedCmd[1] == 0x20)) {
EmSendCmd(rUIDBCC1, sizeof(rUIDBCC1));
-
- if (rUIDBCC1[0] == 0x88) {
- cardSTATE = MFEMUL_SELECT2;
- }
}
// select card
if (len == 9 &&
(receivedCmd[0] == 0x93 && receivedCmd[1] == 0x70 && memcmp(&receivedCmd[2], rUIDBCC1, 4) == 0)) {
- EmSendCmd(rSAK, sizeof(rSAK));
+ if (!_7BUID)
+ EmSendCmd(rSAK, sizeof(rSAK));
+ else
+ EmSendCmd(rSAK1, sizeof(rSAK1));
cuid = bytes_to_num(rUIDBCC1, 4);
- cardSTATE = MFEMUL_WORK;
+ if (!_7BUID) {
+ cardSTATE = MFEMUL_WORK;
+ } else {
+ cardSTATE = MFEMUL_SELECT2;
+ break;
+ }
LED_B_ON();
Dbprintf("--> WORK. anticol1 time: %d", GetTickCount() - selTimer);
}
break;
}
case MFEMUL_SELECT2:{
+ if (len == 2 && (receivedCmd[0] == 0x95 && receivedCmd[1] == 0x20)) {
EmSendCmd(rUIDBCC2, sizeof(rUIDBCC2));
+ break;
+ }
- cuid = bytes_to_num(rUIDBCC2, 4);
- cardSTATE = MFEMUL_WORK;
- LED_B_ON();
-Dbprintf("--> WORK. anticol2 time: %d", GetTickCount() - timer);
+ // select 2 card
+ if (len == 9 &&
+ (receivedCmd[0] == 0x95 && receivedCmd[1] == 0x70 && memcmp(&receivedCmd[2], rUIDBCC2, 4) == 0)) {
+ EmSendCmd(rSAK, sizeof(rSAK));
+
+ cuid = bytes_to_num(rUIDBCC2, 4);
+ cardSTATE = MFEMUL_WORK;
+ LED_B_ON();
+ Dbprintf("--> WORK. anticol2 time: %d", GetTickCount() - selTimer);
+ break;
+ }
+ // TODO: goto work state - i guess there is a command
break;
}
case MFEMUL_AUTH1:{
if (len == 8) {
-timer = GetTickCount();
// ---------------------------------
rn_enc = bytes_to_num(receivedCmd, 4);
crypto1_create(pcs, key64);
num_to_bytes(ans, 4, rAUTH_AT);
// ---------------------------------
EmSendCmd(rAUTH_AT, sizeof(rAUTH_AT));
-// EmSendCmd14443aRaw(resp2, resp2Len, 0);
cardSTATE = MFEMUL_AUTH2;
} else {
cardSTATE = MFEMUL_IDLE;
LED_C_ON();
cardSTATE = MFEMUL_WORK;
-Dbprintf("AUTH COMPLETED. sec=%d, key=%d time=%d a=%d", cardAUTHSC, cardAUTHKEY, GetTickCount() - authTimer, GetTickCount() - timer);
+Dbprintf("AUTH COMPLETED. sec=%d, key=%d time=%d", cardAUTHSC, cardAUTHKEY, GetTickCount() - authTimer);
break;
}
case MFEMUL_WORK:{
// auth
if (len == 4 && (receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61)) {
- authTimer = GetTickCount();
+authTimer = GetTickCount();
// EmSendCmd(rAUTH_NT, sizeof(rAUTH_NT));
-//SpinDelayUs(30);
+//SpinDelayUs(190);
EmSendCmd14443aRaw(resp1, resp1Len, 0);
+LogTrace(NULL, 0, GetDeltaCountUS(), 0, TRUE);
// crypto1_create(pcs, key64);
// if (cardAUTHKEY == 0xff) { // first auth
// crypto1_word(pcs, cuid ^ bytes_to_num(rAUTH_NT, 4), 0); // uid ^ nonce
cardAUTHSC = receivedCmd[1] / 4; // received block num
cardAUTHKEY = receivedCmd[0] - 0x60;
cardSTATE = MFEMUL_AUTH1;
+ nextCycleTimeout = 10;
break;
}
if (len == 0) break;
// decrypt seqence
- if (cardAUTHKEY != 0xff){
- if (len != 1) {
- for (i = 0; i < len; i++)
- receivedCmd[i] = crypto1_byte(pcs, 0x00, 0) ^ receivedCmd[i];
- } else {
- bt = 0;
- for (i = 0; i < 4; i++)
- bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedCmd[0], i)) << i;
+ if (cardAUTHKEY != 0xff) mf_crypto1_decrypt(pcs, receivedCmd, len);
- receivedCmd[0] = bt;
- }
+ // rule 13 of 7.5.3. in ISO 14443-4. chaining shall be continued
+ // BUT... ACK --> NACK
+ if (len == 1 && receivedCmd[0] == CARD_ACK) {
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ break;
+ }
+
+ // rule 12 of 7.5.3. in ISO 14443-4. R(NAK) --> R(ACK)
+ if (len == 1 && receivedCmd[0] == CARD_NACK_NA) {
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
+ break;
}
// read block
if (len == 4 && receivedCmd[0] == 0x30) {
- cmdBuf[0] = 0;
- par = 0;
-/* memcpy(cmdBuf, blockData, 16);
- AppendCrc14443a(cmdBuf, 16);
-
- // crypto
- par = 0;
- for (i = 0; i < 18; i++) {
- d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ cmdBuf[pos];
- par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(cmdBuf[pos])) & 0x01) * 0x20000 );
- }
-*/
- //ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par);
-Dbprintf("read block: %d", receivedCmd[1]);
+ if (receivedCmd[1] >= 16 * 4) {
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ break;
+ }
+ emlGetMem(response, receivedCmd[1], 1);
+ AppendCrc14443a(response, 16);
+ mf_crypto1_encrypt(pcs, response, 18, &par);
+ EmSendCmdPar(response, 18, par);
break;
}
// write block
if (len == 4 && receivedCmd[0] == 0xA0) {
-Dbprintf("write block: %d", receivedCmd[1]);
+ if (receivedCmd[1] >= 16 * 4) {
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ break;
+ }
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
+ nextCycleTimeout = 50;
+ cardSTATE = MFEMUL_WRITEBL2;
+ cardWRBL = receivedCmd[1];
break;
}
-
+
// halt
if (len == 4 && (receivedCmd[0] == 0x50 && receivedCmd[1] == 0x00)) {
cardSTATE = MFEMUL_HALTED;
break;
}
break;
+
+ // command not allowed
+ if (len == 4) {
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA));
+ break;
+ }
+ }
+ case MFEMUL_WRITEBL2:{
+ if (len == 18){
+ mf_crypto1_decrypt(pcs, receivedCmd, len);
+ emlSetMem(receivedCmd, cardWRBL, 1);
+ EmSend4bit(mf_crypto1_encrypt4bit(pcs, CARD_ACK));
+ cardSTATE = MFEMUL_WORK;
+ break;
+ }
+Dbprintf("err write block: %d len:%d", cardWRBL, len);
+ break;
}
}
LEDsoff();
// add trace trailer
+ memset(rAUTH_NT, 0x44, 4);
LogTrace(rAUTH_NT, 4, 0, 0, TRUE);
DbpString("Emulator stopped.");
projects / proxmark3-svn / blobdiff