X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/24cbeb3d27432bb5069c94a7d61c986e32d97285..833081e3e79cf86a7ebae94e3037ef04756d44fd:/armsrc/mifarecmd.c?ds=sidebyside

diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index a16cbf16..6bb04caf 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -16,7 +16,8 @@
 #include "mifarecmd.h"
 #include "apps.h"
 #include "util.h"
-
+//#include "../client/loclass/des.h"
+#include "des.h"
 #include "crc.h"
 
 //-----------------------------------------------------------------------------
@@ -89,108 +90,181 @@ void MifareReadBlock(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
 
 void MifareUC_Auth1(uint8_t arg0, uint8_t *datain){
 
-	byte_t isOK = 0;
 	byte_t dataoutbuf[16] = {0x00};
 	uint8_t uid[10] = {0x00};
-	uint32_t cuid;
+	uint32_t cuid = 0x00;
 
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
+	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 >= MF_DBG_ERROR)
-			Dbprintf("Can't select card");
-		//OnError(0);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card");
+		OnError(0);
 		return;
 	};
 	
-	if(mifare_ultra_auth1(cuid, dataoutbuf)){
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)	
-			Dbprintf("Authentication part1: Fail.");
-		//OnError(1);
+	if(mifare_ultra_auth1(dataoutbuf)){
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part1: Fail.");
+		OnError(1);
 		return;
 	}
 
-	isOK = 1;
-	if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
-		DbpString("AUTH 1 FINISHED");
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 1 FINISHED");
     
-    cmd_send(CMD_ACK,isOK,cuid,0,dataoutbuf,11);
+    cmd_send(CMD_ACK,1,cuid,0,dataoutbuf,11);
 	LEDsoff();
 }
 void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
 
-	uint32_t cuid = arg0;
 	uint8_t key[16] = {0x00};
-	byte_t isOK = 0;
 	byte_t dataoutbuf[16] = {0x00};
     
 	memcpy(key, datain, 16);
     
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
+	LED_A_ON();	LED_B_OFF(); LED_C_OFF();
 	
-	if(mifare_ultra_auth2(cuid, key, dataoutbuf)){
-	    if (MF_DBGLEVEL >= MF_DBG_ERROR) 
-			Dbprintf("Authentication part2: Fail...");
-		//OnError(1);
+	if(mifare_ultra_auth2(key, dataoutbuf)){
+	    if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Authentication part2: Fail...");
+		OnError(1);
 		return;			
 	}
 	
-	isOK = 1;
-	if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
-		DbpString("AUTH 2 FINISHED");
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) DbpString("AUTH 2 FINISHED");
     
-	cmd_send(CMD_ACK,isOK,0,0,dataoutbuf,11);
+	cmd_send(CMD_ACK,1,0,0,dataoutbuf,11);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
 
-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)
 {
 	uint8_t blockNo = arg0;
 	byte_t dataout[16] = {0x00};
 	uint8_t uid[10] = {0x00};
-	uint32_t cuid;
-    
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
-    
+    bool usePwd = (arg1 == 1);
+
+	LEDsoff();	
+	LED_A_ON();    
 	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
     
-	int len = iso14443a_select_card(uid, NULL, &cuid);
+	int len = iso14443a_select_card(uid, NULL, NULL);
 	if(!len) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Can't select card");
-		//OnError(1);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%02X)",len);
+		OnError(1);
 		return;
-		};
-        
-	len = mifare_ultra_readblock(cuid, blockNo, dataout);
-	if(len) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Read block error");
-		//OnError(2);
+	}
+       
+	 // authenticate here.
+	if ( usePwd ) {
+
+		uint8_t key[16] = {0x00};	
+		memcpy(key, datain, 16);
+		 
+		uint8_t random_a[8] = {1,1,1,1,1,1,1,1 };
+		uint8_t random_b[8] = {0x00};
+		uint8_t enc_random_b[8] = {0x00};
+		uint8_t rnd_ab[16] = {0x00};
+		uint8_t IV[8] = {0x00};
+		
+		uint16_t len;
+		uint8_t receivedAnswer[MAX_FRAME_SIZE];
+		uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
+	
+		len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
+		if (len != 11) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+			OnError(1);
+			return;
+		}
+	
+		// tag nonce.
+		memcpy(enc_random_b,receivedAnswer+1,8);
+
+		// decrypt nonce.
+		tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
+		rol(random_b,8);
+		memcpy(rnd_ab  ,random_a,8);
+		memcpy(rnd_ab+8,random_b,8);
+
+		if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+			Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",
+				enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],
+				enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);
+				
+			Dbprintf("    B: %02x %02x %02x %02x %02x %02x %02x %02x",
+				random_b[0],random_b[1],random_b[2],random_b[3],
+				random_b[4],random_b[5],random_b[6],random_b[7]);
+
+			Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
+					rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
+					rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
+					
+			Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
+					rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
+					rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );
+		}
+		
+		// encrypt    out, in, length, key, iv
+		tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
+
+		
+		len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, receivedAnswer, receivedAnswerPar, NULL);
+		if (len != 11) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+			OnError(1);
+			return;
+		}
+
+		uint8_t enc_resp[8] = { 0 };
+		uint8_t resp_random_a[8] = { 0 };
+		memcpy(enc_resp, receivedAnswer+1, 8);
+	
+		// decrypt    out, in, length, key, iv 
+		tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
+		if ( memcmp(resp_random_a, random_a, 8) != 0 )
+			Dbprintf("failed authentication");
+
+		if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+			Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", 
+					rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
+					rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
+
+			Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
+					rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
+					rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);
+
+			Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",
+					random_a[0],random_a[1],random_a[2],random_a[3],
+					random_a[4],random_a[5],random_a[6],random_a[7]);
+					
+			Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",
+					resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],
+					resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);
+		}
+	}
+		
+	if( mifare_ultra_readblock(blockNo, dataout) ) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block error");
+		OnError(2);
 		return;
-		};
+	}
         
-	len = mifare_ultra_halt(cuid);
-	if(len) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)	Dbprintf("Halt error");
-		//OnError(3);
+	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();
 }
-
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Read a MIFARE tag. 
 // read sector (data = 4 x 16 bytes = 64 bytes, or 16 x 16 bytes = 256 bytes)
@@ -259,73 +333,110 @@ 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;
-	byte_t dataout[176] = {0x00};;
-	uint8_t uid[10] = {0x00};
-	uint32_t cuid;
-
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
+	// params
+	uint8_t blockNo = arg0;
+	uint16_t blocks = arg1;
+	bool useKey = (arg2 == 1);
+	int countpages = 0;
+	uint8_t dataout[176] = {0x00};;
 
-	if (MF_DBGLEVEL >= MF_DBG_ALL) 
-		Dbprintf("Pages %d",Pages);
-	
+	LEDsoff();
+	LED_A_ON(); 
 	clear_trace();
 	iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
 
-	int len = iso14443a_select_card(uid, NULL, &cuid);
-	
+	int len = iso14443a_select_card(NULL, NULL, NULL);
 	if (!len) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)
-			Dbprintf("Can't select card");
-		//OnError(1);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
+		OnError(1);
 		return;
 	}
 	
-	for (int i = 0; i < Pages; i++){
+	// authenticate
+	if ( useKey ) {
+		
+		uint8_t key[16] = {0x00};	
+		memcpy(key, datain, 16);
+		 
+		uint8_t random_a[8] = {1,1,1,1,1,1,1,1 };
+		uint8_t random_b[8] = {0x00};
+		uint8_t enc_random_b[8] = {0x00};
+		uint8_t rnd_ab[16] = {0x00};
+		uint8_t IV[8] = {0x00};
+		
+		uint16_t len;
+		uint8_t receivedAnswer[MAX_FRAME_SIZE];
+		uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
+	
+		len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
+		if (len != 11) {
+			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+			OnError(1);
+			return;
+		}
+	
+		// tag nonce.
+		memcpy(enc_random_b,receivedAnswer+1,8);
+
+		// decrypt nonce.
+		tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
+		rol(random_b,8);
+		memcpy(rnd_ab  ,random_a,8);
+		memcpy(rnd_ab+8,random_b,8);
+	
+		// encrypt    out, in, length, key, iv
+		tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
+
+		len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, receivedAnswer, receivedAnswerPar, NULL);
+		if (len != 11) {
+			OnError(1);
+			return;
+		}
+
+		uint8_t enc_resp[8] = { 0 };
+		uint8_t resp_random_a[8] = { 0 };
+		memcpy(enc_resp, receivedAnswer+1, 8);
+	
+		// decrypt    out, in, length, key, iv 
+		tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
+		if ( memcmp(resp_random_a, random_a, 8) != 0 )
+			Dbprintf("failed authentication");
+	}
 	
-		len = mifare_ultra_readblock(cuid, sectorNo * 4 + i, dataout + 4 * i);
+	for (int i = 0; i < blocks; i++){
+	
+		len = mifare_ultra_readblock(blockNo * 4 + i, dataout + 4 * i);
 		
 		if (len) {
-			if (MF_DBGLEVEL >= MF_DBG_ERROR)
-				Dbprintf("Read block %d error",i);
-			//OnError(2);
+			if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
+			OnError(2);
 			return;
 		} else {
-			count_Pages++;
+			countpages++;
 		}
 	}
 		
-	len = mifare_ultra_halt(cuid);
-	if (len) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)
-			Dbprintf("Halt error");
-		//OnError(3);
+	if (mifare_ultra_halt()) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
+		OnError(3);
 		return;
 	}
 	
-	if (MF_DBGLEVEL >= MF_DBG_ALL) {
-		Dbprintf("Pages read %d", count_Pages);
-	}
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("blocks read %d", countpages);
 
-	len = 16*4; //64 bytes
-	
-	// Read a UL-C
-	if (Pages == 44 && count_Pages > 16) 
-		len = 176;
+	len = blocks*4;
 
-	cmd_send(CMD_ACK, 1, 0, 0, dataout, len);	
+	cmd_send(CMD_ACK, 1, len, 0, dataout, len);	
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
 
-
 //-----------------------------------------------------------------------------
 // Select, Authenticate, Write a MIFARE tag. 
 // read block
@@ -400,94 +511,144 @@ 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;
+    uint8_t blockNo = arg0;
 	byte_t blockdata[16] = {0x00};
 
-        memcpy(blockdata, datain,16);
+    memcpy(blockdata, datain, 16);
         
-        // variables
-        byte_t isOK = 0;
 	uint8_t uid[10] = {0x00};
-        uint32_t cuid;
 
-		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);
 
-        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");
+	if(!iso14443a_select_card(uid, NULL, NULL)) {
+		if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
 
-		cmd_send(CMD_ACK,isOK,0,0,0,0);
-        FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
-        LEDsoff();
+	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;
+	};
+		
+	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)
 {
-	// params
 	uint8_t blockNo = arg0;
 	byte_t blockdata[4] = {0x00};
+	uint8_t uid[10] = {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] = {0x00};
-	uint32_t cuid;
+	if(!iso14443a_select_card(uid, NULL, NULL)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
+
+	if(mifare_ultra_special_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;
+	};
+
+	if (MF_DBGLEVEL >= 2) DbpString("WRITE BLOCK FINISHED");
+
+	cmd_send(CMD_ACK,1,0,0,0,0);
+	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
+	LEDsoff();
+}
 
+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);
 
-	LED_A_ON();
-	LED_B_OFF();
-	LED_C_OFF();
+	if(!iso14443a_select_card(NULL, NULL, NULL)) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Can't select card");
+		OnError(0);
+		return;
+	};
 
-	while (true) {
-		if(!iso14443a_select_card(uid, NULL, &cuid)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Can't select card");
-			break;
-		};
+	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;
+	};
 
-		if(mifare_ultra_special_writeblock(cuid, blockNo, blockdata)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Write block error");
-			break;
-		};
+	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;
+	};
 
-		if(mifare_ultra_halt(cuid)) {
-			if (MF_DBGLEVEL >= 1)   Dbprintf("Halt error");
-			break;
-		};
+	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;
+	};
 
-		isOK = 1;
-		break;
-	}
+	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 (MF_DBGLEVEL >= 2)   DbpString("WRITE BLOCK FINISHED");
+	if(mifare_ultra_halt()) {
+		if (MF_DBGLEVEL >= 1) Dbprintf("Halt error");
+		OnError(0);
+		return;
+	};
 
-	cmd_send(CMD_ACK,isOK,0,0,0,0);
+	cmd_send(CMD_ACK,1,0,0,0,0);
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LEDsoff();
 }
@@ -942,12 +1103,12 @@ 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;
 			};
 		};
 	
@@ -1126,7 +1287,74 @@ 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
 //
 
@@ -1134,28 +1362,25 @@ void Mifare_DES_Auth1(uint8_t arg0, uint8_t *datain){
 
 	byte_t dataout[11] = {0x00};
 	uint8_t uid[10] = {0x00};
-	uint32_t cuid;
+	uint32_t cuid = 0x00;
     
 	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);
+		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);
+		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));
 }
 
@@ -1163,22 +1388,20 @@ 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};
+	byte_t isOK = 0;
     
 	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);
+	    if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("Authentication part2: Failed");  
+		OnError(4);
 		return;
 	}
 
-	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) 
-		DbpString("AUTH 2 FINISHED");
+	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);