X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f38a152863a5eb289acb169c5a38b4b77e87956e..40762506601062bb79a0a081a7b508b8e02c29fa:/armsrc/mifarecmd.c?ds=inline

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index ff853a57..69b5b53c 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -16,11 +16,12 @@
 #include "mifarecmd.h"
 #include "apps.h"
 #include "util.h"
-#include "desfire.h"
-#include "../common/crc.h"
+//#include "../client/loclass/des.h"
+#include "des.h"
+#include "crc.h"
 
 //-----------------------------------------------------------------------------
-// Select, Authenticaate, Read an MIFARE tag. 
+// Select, Authenticate, Read a MIFARE tag. 
 // read block
 //-----------------------------------------------------------------------------
 void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
@@ -41,7 +42,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	pcs = &mpcs;
 
 	// clear trace
- 	iso14a_clear_trace();
+	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
 	LED_A_ON();
@@ -88,49 +89,46 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 
 
 void MifareUC_Auth1(uint8_t arg0, uint8_t *datain){
-	// variables
+
 	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
-	uint8_t uid[10];
+	byte_t dataoutbuf[16] = {0x00};
+	uint8_t uid[10] = {0x00};
 	uint32_t cuid;
-    
-	// clear trace
-	iso14a_clear_trace();
-	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
+
 	LED_A_ON();
 	LED_B_OFF();
 	LED_C_OFF();
-	
+    
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
 	if(!iso14443a_select_card(uid, NULL, &cuid)) {
-          if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card, something went wrong before auth");
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Can't select card");
+		OnError(0);
+		return;
 	};
-
-	
-	
 	
 	if(mifare_ultra_auth1(cuid, dataoutbuf)){
-	  if (MF_DBGLEVEL >= 1)	Dbprintf("Authentication part1: Fail.");    
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	
+			Dbprintf("Authentication part1: Fail.");
+		OnError(1);
+		return;
 	}
 
-	isOK=1;
-	if (MF_DBGLEVEL >= 2)	DbpString("AUTH 1 FINISHED");
+	isOK = 1;
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
+		DbpString("AUTH 1 FINISHED");
     
-	LED_B_ON();
     cmd_send(CMD_ACK,isOK,cuid,0,dataoutbuf,11);
-	LED_B_OFF();
-	  
-	// Thats it...
 	LEDsoff();
 }
 void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
-	// params
+
 	uint32_t cuid = arg0;
-	uint8_t key[16]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	// variables
+	uint8_t key[16] = {0x00};
 	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
+	byte_t dataoutbuf[16] = {0x00};
     
 	memcpy(key, datain, 16);
     
@@ -139,63 +137,125 @@ void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
 	LED_C_OFF();
 	
 	if(mifare_ultra_auth2(cuid, key, dataoutbuf)){
-	    if (MF_DBGLEVEL >= 1) Dbprintf("Authentication part2: Fail...");    
+	    if (MF_DBGLEVEL >= MF_DBG_ERROR) 
+			Dbprintf("Authentication part2: Fail...");
+		OnError(1);
+		return;			
 	}
-	isOK=1;
-	if (MF_DBGLEVEL >= 2)	DbpString("AUTH 2 FINISHED");
-    
-	LED_B_ON();
-        cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,11);
-	LED_B_OFF();
+	
+	isOK = 1;
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
+		DbpString("AUTH 2 FINISHED");
     
+	cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,11);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
 
-void MifareUReadBlock(uint8_t arg0,uint8_t *datain)
+void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 {
-    // params
 	uint8_t blockNo = arg0;
-	
-	// variables
-	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
-	uint8_t uid[10];
+	byte_t dataout[16] = {0x00};
+	uint8_t uid[10] = {0x00};
+	uint8_t key[8] = {0x00};
 	uint32_t cuid;
-    
-	// clear trace
-	iso14a_clear_trace();
-	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
+    bool usePwd = false;
+	
+	usePwd = (arg1 == 1);
+	
+	// use password
+	if ( usePwd )
+		memcpy(key, datain, 8);
+	
 	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;
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+    
+	int len = iso14443a_select_card(uid, NULL, &cuid);
+	if(!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Can't select card (RC:%d)",len);
+		OnError(1);
+		return;
 		};
-        
-		if(mifare_ultra_readblock(cuid, blockNo, dataoutbuf)) {
-            if (MF_DBGLEVEL >= 1)	Dbprintf("Read block error");
-			break;
+       
+	 // authenticate here.
+	if ( usePwd ) {
+
+		uint8_t a[8] = { 0x01 };
+		uint8_t b[8] = { 0x00 };
+		uint8_t enc_b[8] = { 0x00 };
+		uint8_t ab[16] = { 0x00 };
+		
+		uint8_t transKey[8] = { 0x00 };
+		
+		uint16_t len;
+		uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+		uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	
+		len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
+		if (len == 1) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR)
+				Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+				OnError(1);
+				return;
+		}
+		
+//		memcpy(dataout, receivedAnswer, 11);
+		
+		// tag nonce.
+		memcpy(enc_b,receivedAnswer+1,8);
+
+		// decrypt nonce.
+		des_dec(enc_b, b, key );
+
+		Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x", enc_b[0],enc_b[1],enc_b[2],enc_b[3],enc_b[4],enc_b[5],enc_b[6],enc_b[7] );
+
+		rol(b,8);
+		
+		memcpy(ab  ,a,8);
+		memcpy(ab+8,b,8);
+
+		Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[0],ab[1],ab[2],ab[3],ab[4],ab[5],ab[6],ab[7] );
+		Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[8],ab[9],ab[10],ab[11],ab[12],ab[13],ab[14],ab[15] );
+
+		// encrypt
+		des_enc(ab, ab, key);
+
+		Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[0],ab[1],ab[2],ab[3],ab[4],ab[5],ab[6],ab[7] );
+		Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[8],ab[9],ab[10],ab[11],ab[12],ab[13],ab[14],ab[15] );
+
+		len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, ab, receivedAnswer, receivedAnswerPar, NULL);
+		if (len == 1) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR)
+				Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+			OnError(1);
+			return;
+		}
+	
+		// 
+		memcpy(transKey, receivedAnswer+1, 8);
+		Dbprintf("TRANSACTIONKEY: %02x %02x %02x %02x %02x %02x %02x %02x", transKey[0],transKey[1],transKey[2],transKey[3],
+		transKey[4],transKey[5],transKey[6],transKey[7] );
+	}
+		
+	len = mifare_ultra_readblock(cuid, blockNo, dataout);
+	if(len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Read block error");
+		OnError(2);
+		return;
 		};
         
-		if(mifare_ultra_halt(cuid)) {
-            if (MF_DBGLEVEL >= 1)	Dbprintf("Halt error");
-			break;
+	len = mifare_ultra_halt(cuid);
+	if(len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Halt error");
+		OnError(3);
+		return;
 		};
 		
-		isOK = 1;
-		break;
-	}
-	
-	if (MF_DBGLEVEL >= 2)	DbpString("READ BLOCK FINISHED");
-    
-	LED_B_ON();
-    cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
-	LED_B_OFF();
+    cmd_send(CMD_ACK,1,0,0,dataout,16);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
@@ -222,7 +282,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	pcs = &mpcs;
 
 	// clear trace
- 	iso14a_clear_trace();
+	clear_trace();
 
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -270,59 +330,68 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 
 void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
 {
-  // params
-        uint8_t sectorNo = arg0;
-        int Pages=arg1;
-	int count_Pages=0;
-        // variables
-        byte_t isOK = 0;
-        byte_t dataoutbuf[44 * 4];
-        uint8_t uid[10];
-        uint32_t cuid;
-
-        // clear trace
-        iso14a_clear_trace();
-
-		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+	// params
+	uint8_t sectorNo = arg0;
+	int Pages = arg1;
+	int count_Pages = 0;
+	byte_t dataout[176] = {0x00};;
+	uint8_t uid[10] = {0x00};
+	uint32_t cuid;
 
-        LED_A_ON();
-        LED_B_OFF();
-        LED_C_OFF();
-        Dbprintf("Pages %d",Pages);
-        while (true) {
-                if(!iso14443a_select_card(uid, NULL, &cuid)) {
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
-                        break;
-                };
-		for(int sec=0;sec<Pages;sec++){
-                    if(mifare_ultra_readblock(cuid, sectorNo * 4 + sec, dataoutbuf + 4 * sec)) {
-                    if (MF_DBGLEVEL >= 1)   Dbprintf("Read block %d error",sec);
-                        break;
-                    }else{
-		      count_Pages++;
-                    };
-                }
-                if(mifare_ultra_halt(cuid)) {
-                if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
-                        break;
-                };
+	LED_A_ON();
+	LED_B_OFF();
+	LED_C_OFF();
 
-                isOK = 1;
-                break;
-        }
-        Dbprintf("Pages read %d",count_Pages);
-        if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");
+	if (MF_DBGLEVEL >= MF_DBG_ALL) 
+		Dbprintf("Pages %d",Pages);
+	
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-        LED_B_ON();
-	if (Pages==16) cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);
-	if (Pages==44 && count_Pages==16) cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,64);
-	if (Pages==44 && count_Pages>16) cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,176);
-        LED_B_OFF();
+	int len = iso14443a_select_card(uid, NULL, &cuid);
+	
+	if (!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Can't select card (RC:%d)",len);
+		OnError(1);
+		return;
+	}
+	
+	for (int i = 0; i < Pages; i++){
+	
+		len = mifare_ultra_readblock(cuid, sectorNo * 4 + i, dataout + 4 * i);
+		
+		if (len) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR)
+				Dbprintf("Read block %d error",i);
+			OnError(2);
+			return;
+		} else {
+			count_Pages++;
+		}
+	}
+		
+	len = mifare_ultra_halt(cuid);
+	if (len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Halt error");
+		OnError(3);
+		return;
+	}
+	
+	if (MF_DBGLEVEL >= MF_DBG_ALL) {
+		Dbprintf("Pages read %d", count_Pages);
+	}
 
-        // Thats it...
-        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-        LEDsoff();
+	len = 16*4; //64 bytes
+	
+	// Read a UL-C
+	if (Pages == 44 && count_Pages > 16) 
+		len = 176;
 
+	cmd_send(CMD_ACK, 1, 0, 0, dataout, len);	
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
 }
 
 
@@ -350,7 +419,7 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	pcs = &mpcs;
 
 	// clear trace
-	iso14a_clear_trace();
+	clear_trace();
 
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -402,19 +471,16 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 {
         // params
         uint8_t blockNo = arg0;
-        byte_t blockdata[16];
+	byte_t blockdata[16] = {0x00};
 
-        memset(blockdata,'\0',16);
         memcpy(blockdata, datain,16);
         
         // variables
         byte_t isOK = 0;
-        uint8_t uid[10];
+	uint8_t uid[10] = {0x00};
         uint32_t cuid;
 
-        // clear trace
-        iso14a_clear_trace();
-
+		clear_trace();
 		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
         LED_A_ON();
@@ -443,33 +509,25 @@ void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
         
         if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 
-        LED_B_ON();
 		cmd_send(CMD_ACK,isOK,0,0,0,0);
-        LED_B_OFF();
-
-
-        // Thats it...
         FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
         LEDsoff();
-//  iso14a_set_tracing(TRUE);
 }
 
 void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 {
 	// params
 	uint8_t blockNo = arg0;
-	byte_t blockdata[4];
+	byte_t blockdata[4] = {0x00};
 	
 	memcpy(blockdata, datain,4);
 
 	// variables
 	byte_t isOK = 0;
-	uint8_t uid[10];
+	uint8_t uid[10] = {0x00};
 	uint32_t cuid;
 
-	// clear trace
-	iso14a_clear_trace();
-
+	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
 	LED_A_ON();
@@ -498,17 +556,13 @@ void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
 
 	if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
 
-	LED_B_ON();
 	cmd_send(CMD_ACK,isOK,0,0,0,0);
-	LED_B_OFF();
-
-	// Thats it...
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
 
 // 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) {
+int valid_nonce(uint32_t Nt, uint32_t NtEnc, uint32_t Ks1, uint8_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;
@@ -535,7 +589,8 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 	uint16_t davg;
 	static uint16_t dmin, dmax;
 	uint8_t uid[10];
-	uint32_t cuid, nt1, nt2, nttmp, nttest, par, ks1;
+	uint32_t cuid, nt1, nt2, nttmp, nttest, ks1;
+	uint8_t par[1];
 	uint32_t target_nt[2], target_ks[2];
 	
 	uint8_t par_array[4];
@@ -543,14 +598,16 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 	struct Crypto1State mpcs = {0, 0};
 	struct Crypto1State *pcs;
 	pcs = &mpcs;
-	uint8_t* receivedAnswer = mifare_get_bigbufptr();
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
 
 	uint32_t auth1_time, auth2_time;
 	static uint16_t delta_time;
 
+	// free eventually allocated BigBuf memory
+	BigBuf_free();
 	// clear trace
-	iso14a_clear_trace();
-	iso14a_set_tracing(false);
+	clear_trace();
+	set_tracing(false);
 	
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -561,6 +618,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 	// statistics on nonce distance
 	if (calibrate) {	// for first call only. Otherwise reuse previous calibration
 		LED_B_ON();
+		WDT_HIT();
 
 		davg = dmax = 0;
 		dmin = 2000;
@@ -659,19 +717,18 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 
 			// nested authentication
 			auth2_time = auth1_time + delta_time;
-			len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, &par, &auth2_time);
+			len = mifare_sendcmd_shortex(pcs, AUTH_NESTED, 0x60 + (targetKeyType & 0x01), targetBlockNo, receivedAnswer, par, &auth2_time);
 			if (len != 4) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("Nested: Auth2 error len=%d", len);
 				continue;
 			};
 		
 			nt2 = bytes_to_num(receivedAnswer, 4);		
-			if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par);
+			if (MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: Testing nt1=%08x nt2enc=%08x nt2par=%02x", i+1, nt1, nt2, par[0]);
 			
 			// Parity validity check
 			for (j = 0; j < 4; j++) {
-				par_array[j] = (oddparity(receivedAnswer[j]) != ((par & 0x08) >> 3));
-				par = par << 1;
+				par_array[j] = (oddparity(receivedAnswer[j]) != ((par[0] >> (7-j)) & 0x01));
 			}
 			
 			ncount = 0;
@@ -706,10 +763,6 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 	//  ----------------------------- crypto1 destroy
 	crypto1_destroy(pcs);
 	
-	// add trace trailer
-	memset(uid, 0x44, 4);
-	LogTrace(uid, 4, 0, 0, TRUE);
-
 	byte_t buf[4 + 4 * 4];
 	memcpy(buf, &cuid, 4);
 	memcpy(buf+4, &target_nt[0], 4);
@@ -725,7 +778,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
-	iso14a_set_tracing(TRUE);
+	set_tracing(TRUE);
 }
 
 //-----------------------------------------------------------------------------
@@ -754,8 +807,8 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	MF_DBGLEVEL = MF_DBG_NONE;
 	
 	// clear trace
-	iso14a_clear_trace();
-	iso14a_set_tracing(TRUE);
+	clear_trace();
+	set_tracing(TRUE);
 
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -789,7 +842,6 @@ void MifareChkKeys(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
     cmd_send(CMD_ACK,isOK,0,0,datain + i * 6,6);
 	LED_B_OFF();
 
-  // Thats it...
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 
@@ -819,11 +871,11 @@ void MifareEMemSet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain)
 }
 
 void MifareEMemGet(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datain){
-	byte_t buf[48];
+	byte_t buf[USB_CMD_DATA_SIZE];
 	emlGetMem(buf, arg0, arg1); // data, block num, blocks count (max 4)
 
 	LED_B_ON();
-	cmd_send(CMD_ACK,arg0,arg1,0,buf,48);
+	cmd_send(CMD_ACK,arg0,arg1,0,buf,USB_CMD_DATA_SIZE);
 	LED_B_OFF();
 }
 
@@ -846,8 +898,8 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	uint8_t uid[10];
 
 	// clear trace
-	iso14a_clear_trace();
-	iso14a_set_tracing(false);
+	clear_trace();
+	set_tracing(false);
 	
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
@@ -935,54 +987,49 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	
 	// variables
 	byte_t isOK = 0;
-	uint8_t uid[10];
-	uint8_t d_block[18];
+	uint8_t uid[10] = {0x00};
+	uint8_t d_block[18] = {0x00};
 	uint32_t cuid;
 	
-	memset(uid, 0x00, 10);
-	uint8_t* receivedAnswer = mifare_get_bigbufptr();
-	
-	if (workFlags & 0x08) {
-		// clear trace
-		iso14a_clear_trace();
-		iso14a_set_tracing(TRUE);
-
-		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 
+	// reset FPGA and LED
+	if (workFlags & 0x08) {
 		LED_A_ON();
 		LED_B_OFF();
 		LED_C_OFF();
 	
-		SpinDelay(300);
-		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-		SpinDelay(100);
-		FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+		clear_trace();
+		set_tracing(TRUE);
+		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 	}
 
 	while (true) {
+
 		// get UID from chip
 		if (workFlags & 0x01) {
 			if(!iso14443a_select_card(uid, NULL, &cuid)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card");
-				break;
+				//break;
 			};
 
 			if(mifare_classic_halt(NULL, cuid)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("Halt error");
-				break;
+				//break;
 			};
 		};
 	
 		// reset chip
 		if (needWipe){
-      ReaderTransmitBitsPar(wupC1,7,0, NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			ReaderTransmitBitsPar(wupC1,7,0, NULL);
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wupC1 error");
 				break;
 			};
 
 			ReaderTransmit(wipeC, sizeof(wipeC), NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wipeC error");
 				break;
 			};
@@ -995,20 +1042,20 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 
 		// write block
 		if (workFlags & 0x02) {
-      ReaderTransmitBitsPar(wupC1,7,0, NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			ReaderTransmitBitsPar(wupC1,7,0, NULL);
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wupC1 error");
 				break;
 			};
 
 			ReaderTransmit(wupC2, sizeof(wupC2), NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wupC2 error");
 				break;
 			};
 		}
 
-		if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
+		if ((mifare_sendcmd_short(NULL, 0, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 1) || (receivedAnswer[0] != 0x0a)) {
 			if (MF_DBGLEVEL >= 1)	Dbprintf("write block send command error");
 			break;
 		};
@@ -1017,7 +1064,7 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 		AppendCrc14443a(d_block, 16);
 	
 		ReaderTransmit(d_block, sizeof(d_block), NULL);
-		if ((ReaderReceive(receivedAnswer) != 1) || (receivedAnswer[0] != 0x0a)) {
+		if ((ReaderReceive(receivedAnswer, receivedAnswerPar) != 1) || (receivedAnswer[0] != 0x0a)) {
 			if (MF_DBGLEVEL >= 1)	Dbprintf("write block send data error");
 			break;
 		};	
@@ -1038,7 +1085,6 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	LED_B_OFF();
 
 	if ((workFlags & 0x10) || (!isOK)) {
-		// Thats it...
 		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 		LEDsoff();
 	}
@@ -1061,46 +1107,39 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	
 	// variables
 	byte_t isOK = 0;
-	uint8_t data[18];
+	uint8_t data[18] = {0x00};
 	uint32_t cuid = 0;
 	
-	memset(data, 0x00, 18);
-	uint8_t* receivedAnswer = mifare_get_bigbufptr();
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
 	if (workFlags & 0x08) {
-		// clear trace
-		iso14a_clear_trace();
-		iso14a_set_tracing(TRUE);
-
-		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-
 		LED_A_ON();
 		LED_B_OFF();
 		LED_C_OFF();
 	
-		SpinDelay(300);
-		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-		SpinDelay(100);
-		FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_READER_MOD);
+		clear_trace();
+		set_tracing(TRUE);
+		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 	}
 
 	while (true) {
 		if (workFlags & 0x02) {
 			ReaderTransmitBitsPar(wupC1,7,0, NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wupC1 error");
 				break;
 			};
 
 			ReaderTransmit(wupC2, sizeof(wupC2), NULL);
-			if(!ReaderReceive(receivedAnswer) || (receivedAnswer[0] != 0x0a)) {
+			if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("wupC2 error");
 				break;
 			};
 		}
 
 		// read block
-		if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, NULL) != 18)) {
+		if ((mifare_sendcmd_short(NULL, 0, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL) != 18)) {
 			if (MF_DBGLEVEL >= 1)	Dbprintf("read block send command error");
 			break;
 		};
@@ -1122,9 +1161,95 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	LED_B_OFF();
 
 	if ((workFlags & 0x10) || (!isOK)) {
-		// Thats it...
 		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 		LEDsoff();
 	}
 }
 
+void MifareCIdent(){
+  
+	// card commands
+	uint8_t wupC1[]       = { 0x40 }; 
+	uint8_t wupC2[]       = { 0x43 }; 
+	
+	// variables
+	byte_t isOK = 1;
+	
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+
+	ReaderTransmitBitsPar(wupC1,7,0, NULL);
+	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
+		isOK = 0;
+	};
+
+	ReaderTransmit(wupC2, sizeof(wupC2), NULL);
+	if(!ReaderReceive(receivedAnswer, receivedAnswerPar) || (receivedAnswer[0] != 0x0a)) {
+		isOK = 0;
+	};
+
+	if (mifare_classic_halt(NULL, 0)) {
+		isOK = 0;
+	};
+
+	cmd_send(CMD_ACK,isOK,0,0,0,0);
+}
+
+			//
+// DESFIRE
+//
+
+void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
+
+	byte_t dataout[11] = {0x00};
+	uint8_t uid[10] = {0x00};
+	uint32_t cuid;
+    
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+
+	int len = iso14443a_select_card(uid, NULL, &cuid);
+	if(!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	
+			Dbprintf("Can't select card");
+		OnError(1);
+		return;
+	};
+
+	if(mifare_desfire_des_auth1(cuid, dataout)){
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)	
+			Dbprintf("Authentication part1: Fail.");
+		OnError(4);
+		return;
+	}
+
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
+    
+    cmd_send(CMD_ACK,1,cuid,0,dataout, sizeof(dataout));
+}
+
+void Mifare_DES_Auth2(uint32_t arg0, uint8_t *datain){
+
+	uint32_t cuid = arg0;
+	uint8_t key[16] = {0x00};
+	byte_t isOK = 0;
+	byte_t dataout[12] = {0x00};
+    
+	memcpy(key, datain, 16);
+	
+	isOK = mifare_desfire_des_auth2(cuid, key, dataout);
+	
+	if( isOK) {
+	    if (MF_DBGLEVEL >= MF_DBG_EXTENDED) 
+			Dbprintf("Authentication part2: Failed");  
+		OnError(4);
+		return;
+	}
+
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) 
+		DbpString("AUTH 2 FINISHED");
+
+	cmd_send(CMD_ACK, isOK, 0, 0, dataout, sizeof(dataout));
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
+}