X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6ff6ade2f5f24ffb52a9f90238ee7b8c77edc89c..46cd801c5ad5d5f60b2526b4a1e6700a2a008f7b:/armsrc/mifarecmd.c

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index fc480a38..9c17ce3c 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -16,8 +16,8 @@
 #include "mifarecmd.h"
 #include "apps.h"
 #include "util.h"
-#include "desfire.h"
-#include "../common/crc.h"
+
+#include "crc.h"
 
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag. 
@@ -41,7 +41,7 @@ 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();
@@ -76,7 +76,7 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	//  ----------------------------- crypto1 destroy
 	crypto1_destroy(pcs);
 	
-	if (MF_DBGLEVEL >= 2) DbpString("READ BLOCK FINISHED");
+	if (MF_DBGLEVEL >= 2)	DbpString("READ BLOCK FINISHED");
 
 	LED_B_ON();
 	cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
@@ -86,113 +86,90 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	LEDsoff();
 }
 
+void MifareUC_Auth(uint8_t arg0, uint8_t *keybytes){
 
-void MifareUC_Auth1(uint8_t arg0, uint8_t *datain){
-	// variables
-	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
-	uint8_t uid[10];
-	uint32_t cuid;
-    
-	// clear trace
-	iso14a_clear_trace();
+	bool turnOffField = (arg0 == 1);
+
+	LED_A_ON(); LED_B_OFF(); LED_C_OFF();
+	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
-	
 
-	if(!iso14443a_select_card(uid, NULL, &cuid)) {
-          if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card, something went wrong before auth");
+	if(!iso14443a_select_card(NULL, NULL, NULL)) {
+		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(!mifare_ultra_auth(keybytes)){
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication failed");
+		OnError(1);
+		return;
 	}
 
-	isOK=1;
-	if (MF_DBGLEVEL >= 2)	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
-	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
-    
-	memcpy(key, datain, 16);
-    
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
-	
-	if(mifare_ultra_auth2(cuid, key, dataoutbuf)){
-	    if (MF_DBGLEVEL >= 1) Dbprintf("Authentication part2: Fail...");    
+	if (turnOffField) {
+		FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+		LEDsoff();
 	}
-	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();
-    
-	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-	LEDsoff();
+	cmd_send(CMD_ACK,1,0,0,0,0);
 }
 
-void MifareUReadBlock(uint8_t arg0,uint8_t *datain)
+// Arg0 = BlockNo,
+// Arg1 = UsePwd bool
+// datain = PWD bytes,
+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];
-	uint32_t cuid;
-    
-	// clear trace
-	iso14a_clear_trace();
-	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
+	byte_t dataout[16] = {0x00};
+	bool useKey = (arg1 == 1); //UL_C
+	bool usePwd = (arg1 == 2); //UL_EV1/NTAG
+
+	LEDsoff();
 	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_ultra_readblock(cuid, blockNo, dataoutbuf)) {
-            if (MF_DBGLEVEL >= 1)	Dbprintf("Read block error");
-			break;
-		};
-        
-		if(mifare_ultra_halt(cuid)) {
-            if (MF_DBGLEVEL >= 1)	Dbprintf("Halt error");
-			break;
-		};
-		
-		isOK = 1;
-		break;
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+
+	int len = iso14443a_select_card(NULL, NULL, NULL);
+	if(!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
+		OnError(1);
+		return;
 	}
-	
-	if (MF_DBGLEVEL >= 2)	DbpString("READ BLOCK FINISHED");
-    
-	LED_B_ON();
-    cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,16);
-	LED_B_OFF();
+
+	// UL-C authentication
+	if ( useKey ) {
+		uint8_t key[16] = {0x00};
+		memcpy(key, datain, sizeof(key) );
+
+		if ( !mifare_ultra_auth(key) ) {
+			OnError(1);
+			return;
+		}
+	}
+
+	// UL-EV1 / NTAG authentication
+	if ( usePwd ) {
+		uint8_t pwd[4] = {0x00};
+		memcpy(pwd, datain, 4);
+		uint8_t pack[4] = {0,0,0,0};
+		if (!mifare_ul_ev1_auth(pwd, pack)) {
+			OnError(1);
+			return;
+		}
+	}	
+
+	if( mifare_ultra_readblock(blockNo, dataout) ) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
+		OnError(2);
+		return;
+	}
+
+	if( mifare_ultra_halt() ) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
+		OnError(3);
+		return;
+	}
+
+    cmd_send(CMD_ACK,1,0,0,dataout,16);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
@@ -219,7 +196,7 @@ 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);
 
@@ -232,7 +209,7 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 		isOK = 0;
 		if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card");
 	}
-
+	
 	
 	if(isOK && mifare_classic_auth(pcs, cuid, FirstBlockOfSector(sectorNo), keyType, ui64Key, AUTH_FIRST)) {
 		isOK = 0;
@@ -265,64 +242,103 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 	LEDsoff();
 }
 
-void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
+// arg0 = blockNo (start)
+// arg1 = Pages (number of blocks)
+// arg2 = useKey
+// datain = KEY bytes
+void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
 {
-	// params
-	uint8_t sectorNo = arg0;
-	int Pages=arg1;
-	int count_Pages=0;
-	// variables
-	byte_t isOK = 0;
-	byte_t dataoutbuf[176];
-	uint8_t uid[10];
-	uint32_t cuid;
+	// free eventually allocated BigBuf memory
+	BigBuf_free();
+	clear_trace();
 
-	// clear trace
-	iso14a_clear_trace();
+	// params
+	uint8_t blockNo = arg0;
+	uint16_t blocks = arg1;
+	bool useKey = (arg2 == 1); //UL_C
+	bool usePwd = (arg2 == 2); //UL_EV1/NTAG
+	uint32_t countblocks = 0;
+	uint8_t *dataout = BigBuf_malloc(CARD_MEMORY_SIZE);
+	if (dataout == NULL){
+		Dbprintf("out of memory");
+		OnError(1);
+		return;
+	}
 
+	LEDsoff();
+	LED_A_ON();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-	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;
-                };
-
-                isOK = 1;
-                break;
-        }
-	Dbprintf("Pages read %d",count_Pages);
-	if (MF_DBGLEVEL >= 2) DbpString("READ CARD FINISHED");
-
-        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(NULL, NULL, NULL);
+	if (!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
+		OnError(1);
+		return;
+	}
 
-	// Thats it...
+	// UL-C authentication
+	if ( useKey ) {
+		uint8_t key[16] = {0x00};
+		memcpy(key, datain, sizeof(key) );
+
+		if ( !mifare_ultra_auth(key) ) {
+			OnError(1);
+			return;
+		}
+	}
+
+	// UL-EV1 / NTAG authentication
+	if (usePwd) {
+		uint8_t pwd[4] = {0x00};
+		memcpy(pwd, datain, sizeof(pwd));
+		uint8_t pack[4] = {0,0,0,0};
+
+		if (!mifare_ul_ev1_auth(pwd, pack)){
+			OnError(1);
+			return;			
+		}
+	}
+
+	for (int i = 0; i < blocks; i++){
+		if ((i*4) + 4 > CARD_MEMORY_SIZE) {
+			Dbprintf("Data exceeds buffer!!");
+			break;
+		}
+
+		len = mifare_ultra_readblock(blockNo + i, dataout + 4 * i);
+		
+		if (len) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
+			// if no blocks read - error out
+			if (i==0){
+				OnError(2);
+			return;
+			} else {
+				//stop at last successful read block and return what we got
+				break;
+			}
+		} else {
+			countblocks++;
+		}
+	}
+
+	len = mifare_ultra_halt();
+	if (len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
+		OnError(3);
+		return;
+	}
+
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Blocks read %d", countblocks);
+
+	countblocks *= 4;
+	cmd_send(CMD_ACK, 1, countblocks, BigBuf_max_traceLen(),0 , 0);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
-
+	
+	BigBuf_free();
 }
 
-
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Write a MIFARE tag. 
 // read block
@@ -347,7 +363,7 @@ 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);
 
@@ -397,115 +413,179 @@ void MifareWriteBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 
 void MifareUWriteBlock(uint8_t arg0, uint8_t *datain)
 {
-        // params
-        uint8_t blockNo = arg0;
-        byte_t blockdata[16];
+	uint8_t blockNo = arg0;
+	byte_t blockdata[16] = {0x00};
 
-        memset(blockdata,'\0',16);
-        memcpy(blockdata, datain,16);
-        
-        // variables
-        byte_t isOK = 0;
-        uint8_t uid[10];
-        uint32_t cuid;
+	memcpy(blockdata, datain, 16);
 
-        // clear trace
-        iso14a_clear_trace();
+	uint8_t uid[10] = {0x00};
 
-		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, NULL)) {
+		if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
+
+	if(mifare_ultra_writeblock(blockNo, blockdata)) {
+		if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
+		OnError(0);
+		return;	};
+
+	if(mifare_ultra_halt()) {
+		if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
+		OnError(0);
+		return;
+	};
 
-        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_ultra_writeblock(cuid, blockNo, blockdata)) {
-                        if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
-                        break;
-                };
-
-                if(mifare_ultra_halt(cuid)) {
-                        if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
-                        break;
-                };
-                
-                isOK = 1;
-                break;
-        }
-        
-        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);
+	if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
+
+	cmd_send(CMD_ACK,1,0,0,0,0);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
 }
 
-void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
+// Arg0   : Block to write to.
+// Arg1   : 0 = use no authentication.
+//          1 = use 0x1A authentication.
+//          2 = use 0x1B authentication.
+// datain : 4 first bytes is data to be written.
+//        : 4/16 next bytes is authentication key.
+void MifareUWriteBlock_Special(uint8_t arg0, uint8_t arg1, uint8_t *datain)
 {
-	// params
 	uint8_t blockNo = arg0;
-	byte_t blockdata[4];
-	
+	bool useKey = (arg1 == 1); //UL_C
+	bool usePwd = (arg1 == 2); //UL_EV1/NTAG
+	byte_t blockdata[4] = {0x00};
+
 	memcpy(blockdata, datain,4);
+	
+	LEDsoff();
+	LED_A_ON();
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-	// variables
-	byte_t isOK = 0;
-	uint8_t uid[10];
-	uint32_t cuid;
+	if(!iso14443a_select_card(NULL, NULL, NULL)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
 
-	// clear trace
-	iso14a_clear_trace();
+	// UL-C authentication
+	if ( useKey ) {
+		uint8_t key[16] = {0x00};	
+		memcpy(key, datain+4, sizeof(key) );
 
-	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+		if ( !mifare_ultra_auth(key) ) {
+			OnError(1);
+			return;			
+		}
+	}
+	
+	// UL-EV1 / NTAG authentication
+	if (usePwd) { 
+		uint8_t pwd[4] = {0x00};
+		memcpy(pwd, datain+4, 4);
+		uint8_t pack[4] = {0,0,0,0};
+		if (!mifare_ul_ev1_auth(pwd, pack)) {
+			OnError(1);
+			return;			
+		}
+	}
+	
+	if(mifare_ultra_special_writeblock(blockNo, blockdata)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
+		OnError(0);
+		return;
+	};
 
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
+	if(mifare_ultra_halt()) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+		OnError(0);
+		return;
+	};
 
-	while (true) {
-		if(!iso14443a_select_card(uid, NULL, &cuid)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
-			break;
-		};
+	if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
 
-		if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
-			break;
-		};
+	cmd_send(CMD_ACK,1,0,0,0,0);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
+}
 
-		if(mifare_ultra_halt(cuid)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
-			break;
-		};
+void MifareUSetPwd(uint8_t arg0, uint8_t *datain){
+	
+	uint8_t pwd[16] = {0x00};
+	byte_t blockdata[4] = {0x00};
+	
+	memcpy(pwd, datain, 16);
+	
+	LED_A_ON(); LED_B_OFF(); LED_C_OFF();
+	clear_trace();
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-		isOK = 1;
-		break;
-	}
+	if(!iso14443a_select_card(NULL, NULL, NULL)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
 
-	if (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
+	blockdata[0] = pwd[7];
+	blockdata[1] = pwd[6];
+	blockdata[2] = pwd[5];
+	blockdata[3] = pwd[4];
+	if(mifare_ultra_special_writeblock( 44, blockdata)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
+		OnError(44);
+		return;
+	};
 
-	LED_B_ON();
-	cmd_send(CMD_ACK,isOK,0,0,0,0);
-	LED_B_OFF();
+	blockdata[0] = pwd[3];
+	blockdata[1] = pwd[2];
+	blockdata[2] = pwd[1];
+	blockdata[3] = pwd[0];
+	if(mifare_ultra_special_writeblock( 45, blockdata)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
+		OnError(45);
+		return;
+	};
 
-	// Thats it...
+	blockdata[0] = pwd[15];
+	blockdata[1] = pwd[14];
+	blockdata[2] = pwd[13];
+	blockdata[3] = pwd[12];
+	if(mifare_ultra_special_writeblock( 46, blockdata)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
+		OnError(46);
+		return;
+	};
+
+	blockdata[0] = pwd[11];
+	blockdata[1] = pwd[10];
+	blockdata[2] = pwd[9];
+	blockdata[3] = pwd[8];
+	if(mifare_ultra_special_writeblock( 47, blockdata)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Write block error");
+		OnError(47);
+		return;
+	};	
+
+	if(mifare_ultra_halt()) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+		OnError(0);
+		return;
+	};
+
+	cmd_send(CMD_ACK,1,0,0,0,0);
 	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, uint8_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;
@@ -541,14 +621,16 @@ 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 =  get_bigbufptr_recvrespbuf();
+	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);
 
@@ -562,7 +644,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 		WDT_HIT();
 
 		davg = dmax = 0;
-		dmin = 2000; 
+		dmin = 2000;
 		delta_time = 0;
 		
 		for (rtr = 0; rtr < 17; rtr++) {
@@ -599,7 +681,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 			};
 
 			nttmp = prng_successor(nt1, 100);				//NXP Mifare is typical around 840,but for some unlicensed/compatible mifare card this can be 160
-			for (i = 141; i < 1200; i++) {
+			for (i = 101; i < 1200; i++) {
 				nttmp = prng_successor(nttmp, 1);
 				if (nttmp == nt2) break;
 			}
@@ -617,7 +699,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 			}
 		}
 		
-		if (rtr <= 1) return;
+		if (rtr <= 1)	return;
 
 		davg = (davg + (rtr - 1)/2) / (rtr - 1);
 		
@@ -636,18 +718,9 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 	//  get crypted nonces for target sector
 	for(i=0; i < 2; i++) { // look for exactly two different nonces
 
-		WDT_HIT();	
-	    if(BUTTON_PRESS()) {
-			DbpString("Nested: cancelled");
-			crypto1_destroy(pcs);
-			FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-			LEDsoff();
-			return;
-		}
-
 		target_nt[i] = 0;
 		while(target_nt[i] == 0) { // continue until we have an unambiguous nonce
-		 
+		
 			// prepare next select. No need to power down the card.
 			if(mifare_classic_halt(pcs, cuid)) {
 				if (MF_DBGLEVEL >= 1)	Dbprintf("Nested: Halt error");
@@ -707,7 +780,7 @@ void MifareNested(uint32_t arg0, uint32_t arg1, uint32_t calibrate, uint8_t *dat
 			if (target_nt[i] == 0 && j == dmax+1 && MF_DBGLEVEL >= 3) Dbprintf("Nonce#%d: dismissed (all invalid)", i+1);
 		}
 	}
-	
+
 	LED_C_OFF();
 	
 	//  ----------------------------- crypto1 destroy
@@ -728,7 +801,7 @@ 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);
 }
 
 //-----------------------------------------------------------------------------
@@ -757,8 +830,8 @@ 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);
 
@@ -848,8 +921,8 @@ 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);
 
@@ -941,17 +1014,17 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	uint8_t d_block[18] = {0x00};
 	uint32_t cuid;
 	
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
-	
+	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();
-		
-		iso14a_clear_trace();
-		iso14a_set_tracing(TRUE);
+	
+		clear_trace();
+		set_tracing(TRUE);
 		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 	}
 
@@ -961,12 +1034,12 @@ void MifareCSetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 		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;
 			};
 		};
 	
@@ -1060,16 +1133,16 @@ void MifareCGetBlock(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 	uint8_t data[18] = {0x00};
 	uint32_t cuid = 0;
 	
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
 	if (workFlags & 0x08) {
 		LED_A_ON();
 		LED_B_OFF();
 		LED_C_OFF();
-
-		iso14a_clear_trace();
-		iso14a_set_tracing(TRUE);
+	
+		clear_trace();
+		set_tracing(TRUE);
 		iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 	}
 
@@ -1125,8 +1198,8 @@ void MifareCIdent(){
 	// variables
 	byte_t isOK = 1;
 	
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	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)) {
@@ -1145,78 +1218,123 @@ void MifareCIdent(){
 	cmd_send(CMD_ACK,isOK,0,0,0,0);
 }
 
-			//
+void MifareCollectNonces(uint32_t arg0, uint32_t arg1){
+
+	BigBuf_free();
+
+	uint32_t iterations = arg0;
+	uint8_t uid[10] = {0x00};
+
+	uint8_t *response = BigBuf_malloc(MAX_MIFARE_FRAME_SIZE);
+	uint8_t *responsePar = BigBuf_malloc(MAX_MIFARE_PARITY_SIZE);
+
+	uint8_t mf_auth[] = { 0x60,0x00,0xf5,0x7b };
+	
+	// get memory from BigBuf.
+	uint8_t *nonces = BigBuf_malloc(iterations * 4);
+
+	LED_A_ON();
+	LED_B_OFF();
+	LED_C_OFF();
+
+	clear_trace();
+	set_tracing(TRUE);
+	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
+	
+	for (int i = 0; i < iterations; i++) {
+						
+		WDT_HIT();
+
+		// Test if the action was cancelled
+		if(BUTTON_PRESS()) break;
+		
+		//		if(mifare_classic_halt(pcs, cuid)) {
+		//			if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+		//}
+
+		if(!iso14443a_select_card(uid, NULL, NULL)) {
+			if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+			continue;
+		};
+
+		// Transmit MIFARE_CLASSIC_AUTH.
+		ReaderTransmit(mf_auth, sizeof(mf_auth), NULL);
+
+		// Receive the (4 Byte) "random" nonce
+		if (!ReaderReceive(response, responsePar)) {
+			if (MF_DBGLEVEL >= 1)	Dbprintf("Couldn't receive tag nonce");
+			continue;
+		}	
+		
+		nonces[i*4] = bytes_to_num(response, 4);
+	}
+		
+	int packLen =  iterations * 4;
+	int packSize = 0;
+	int packNum = 0;
+	while (packLen > 0) {
+		packSize = MIN(USB_CMD_DATA_SIZE, packLen);
+		LED_B_ON();
+		cmd_send(CMD_ACK, 77, 0, packSize, nonces - packLen, packSize);
+		LED_B_OFF();
+
+		packLen -= packSize;
+		packNum++;
+	}
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
+}
+
+//
 // DESFIRE
 //
 
 void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
-	// variables
-	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
-	uint8_t uid[10];
-	uint32_t cuid;
+
+	byte_t dataout[11] = {0x00};
+	uint8_t uid[10] = {0x00};
+	uint32_t cuid = 0x00;
     
-	// clear trace
-	iso14a_clear_trace();
+	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
-	
 
-	if(!iso14443a_select_card(uid, NULL, &cuid)) {
-          if (MF_DBGLEVEL >= 1)	Dbprintf("Can't select card, something went wrong before auth");
+	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, dataoutbuf)){
-	  if (MF_DBGLEVEL >= 1)	Dbprintf("Authentication part1: Fail.");    
+	if(mifare_desfire_des_auth1(cuid, dataout)){
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
+		OnError(4);
+		return;
 	}
 
-	isOK=1;
-	if (MF_DBGLEVEL >= 2)	DbpString("AUTH 1 FINISHED");
-    
-	LED_B_ON();
-        cmd_send(CMD_ACK,isOK,cuid,0,dataoutbuf,11);
-	LED_B_OFF();
-	  
-	// Thats it...
-	//FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-	LEDsoff();
+	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){
-	// 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 dataout[12] = {0x00};
 	byte_t isOK = 0;
-	byte_t dataoutbuf[16];
     
 	memcpy(key, datain, 16);
-	// clear trace
-	//iso14a_clear_trace();
-	//iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
-    
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
-
-//	Dbprintf("Sending %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
-//		 key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7],key[8],
-//		 key[9],key[10],key[11],key[12],key[13],key[14],key[15]);
 	
-	if(mifare_desfire_des_auth2(cuid, key, dataoutbuf)){
-	    if (MF_DBGLEVEL >= 1) Dbprintf("Authentication part2: Fail...");    
+	isOK = mifare_desfire_des_auth2(cuid, key, dataout);
+	
+	if( isOK) {
+	    if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");  
+		OnError(4);
+		return;
 	}
-	isOK=1;
-	if (MF_DBGLEVEL >= 2)	DbpString("AUTH 2 FINISHED");
-    
-	LED_B_ON();
-        cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,12);
-	LED_B_OFF();
-    
-    // Thats it...
+
+	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();
 }
\ No newline at end of file