X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/35147d51e3961db75a852368fffa31006da90199..86dab5168e73c78c9eb348a1008e81822c7b8d2e:/client/cmdhfmfu.c?ds=inline

diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 3b9f2e6d..8bd6ec87 100644
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -8,122 +8,148 @@
 // High frequency MIFARE ULTRALIGHT (C) commands
 //-----------------------------------------------------------------------------
 #include <openssl/des.h>
+#include "cmdhfmfu.h"
 #include "cmdhfmf.h"
+#include "cmdhf14a.h"
 
-uint8_t MAX_ULTRA_BLOCKS= 0x0f;
-uint8_t MAX_ULTRAC_BLOCKS= 0x2c;
-uint8_t key1_blnk_data[16] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
+
+#define MAX_ULTRA_BLOCKS   0x0f
+#define MAX_ULTRAC_BLOCKS  0x2f
+//#define MAX_ULTRAC_BLOCKS  0x2c
+uint8_t key1_blnk_data[16] = { 0x00 };
 uint8_t key2_defa_data[16] = { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f };
 uint8_t key3_3des_data[16] = { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 };
 uint8_t key4_nfc_data[16]  = { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 };
-uint8_t key5_ones_data[16] = { 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01 };
+uint8_t key5_ones_data[16] = { 0x01 };
 
 static int CmdHelp(const char *Cmd);
 
+int CmdHF14AMfUInfo(const char *Cmd){
+
+    uint8_t datatemp[7] = {0x00};
+    uint8_t isOK  = 0;
+    uint8_t *data = NULL;
+
+    UsbCommand c = {CMD_MIFAREU_READCARD, {0, 4}};
+    SendCommand(&c);
+    UsbCommand resp;
+
+    if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
+        isOK  = resp.arg[0] & 0xff;
+        data  = resp.d.asBytes;
+
+        if (!isOK) {
+			PrintAndLog("Error reading from tag");
+			return -1;
+		}
+	} else {
+		PrintAndLog("Command execute timed out");
+		return -1;
+	}
+	
+	PrintAndLog("");
+	PrintAndLog("-- Mifare Ultralight / Ultralight-C Tag Information ---------");
+	PrintAndLog("-------------------------------------------------------------");
+
+	// UID
+	memcpy( datatemp, data, 3);
+	memcpy( datatemp+3, data+4, 4);
+	
+	PrintAndLog("MANUFACTURER : %s", getTagInfo(datatemp[0]));
+	PrintAndLog("         UID : %s ", sprint_hex(datatemp, 7));
+	// BBC
+	// CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2 
+	int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
+	if ( data[3] == crc0 )
+		PrintAndLog("        BCC0 : %02x - Ok", data[3]);
+	else
+		PrintAndLog("        BCC0 : %02x - crc should be %02x", data[3], crc0);
+		
+	int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
+	if ( data[8] == crc1 )
+		PrintAndLog("        BCC1 : %02x - Ok", data[8]);
+	else
+		PrintAndLog("        BCC1 : %02x - crc should be %02x", data[8], crc1 );
+	
+	PrintAndLog("    Internal : %s ", sprint_hex(data + 9, 1));
+	
+	memcpy(datatemp, data+10, 2);
+	PrintAndLog("        Lock : %s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
+	PrintAndLog("  OneTimePad : %s ", sprint_hex(data + 3*4, 4));
+	PrintAndLog("");
+
+	int len = CmdHF14AMfucAuth("K 0");
+//	PrintAndLog("CODE: %d",len);
+	
+	PrintAndLog("Seems to be a Ultralight %s", (len==0) ? "-C" :"");
+	return 0;
+}
+
 //
 //  Mifare Ultralight Write Single Block
 //
 int CmdHF14AMfUWrBl(const char *Cmd){
-    uint8_t blockNo = 0;
-    bool chinese_card=0;
-    uint8_t bldata[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+    uint8_t blockNo    = -1;
+    bool chinese_card  = FALSE;
+    uint8_t bldata[16] = {0x00};
     UsbCommand resp;
-        
-    if (strlen(Cmd)<3) {
-        PrintAndLog("Usage:  hf mfu uwrbl <block number> <block data (8 hex symbols)> [w]");
-        PrintAndLog("        sample: hf mfu uwrbl 0 01020304");
+
+ 	char cmdp = param_getchar(Cmd, 0);
+	if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {
+        PrintAndLog("Usage:  hf mfu wrbl <block number> <block data (8 hex symbols)> [w]");
+		PrintAndLog("       [block number]");
+		PrintAndLog("       [block data] - (8 hex symbols)");
+		PrintAndLog("       [w] - Chinese magic ultralight tag");
+		PrintAndLog("");
+        PrintAndLog("        sample: hf mfu wrbl 0 01020304");
+		PrintAndLog("");		
         return 0;
     }       
-    blockNo = param_get8(Cmd, 0);
-    if (blockNo>MAX_ULTRA_BLOCKS){
+    
+	blockNo = param_get8(Cmd, 0);
+
+    if (blockNo > MAX_ULTRA_BLOCKS){
         PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
         return 1;
     }
+	
     if (param_gethex(Cmd, 1, bldata, 8)) {
         PrintAndLog("Block data must include 8 HEX symbols");
         return 1;
     }
-    if (strchr(Cmd,'w') != 0) {
-        chinese_card=1; 
+	
+    if (strchr(Cmd,'w') != 0  || strchr(Cmd,'W') != 0 ) {
+        chinese_card = TRUE; 
     }
-    switch(blockNo){
-        case 0:
-            if (!chinese_card){
-                PrintAndLog("Access Denied");
-            }else{
-                PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(d.d.asBytes,bldata, 4);
-                SendCommand(&d);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }  
-            }
-            break;
-        case 1:
-	    if (!chinese_card){
-	        PrintAndLog("Access Denied");
-	    }else{	
-	        PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(d.d.asBytes,bldata, 4);
-                SendCommand(&d);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }
-	    }
-	    break;
-	case 2:
-	    if (!chinese_card){
-	        PrintAndLog("Access Denied");
-	    }else{	
-	        PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand c = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(c.d.asBytes, bldata, 4);
-                SendCommand(&c);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }
-	    }
-	    break;
-	case 3:
-	    PrintAndLog("--specialblock no:%02x", blockNo);
-            PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-            UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-            memcpy(d.d.asBytes,bldata, 4);
-            SendCommand(&d);
-            if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                uint8_t isOK  = resp.arg[0] & 0xff;
-                PrintAndLog("isOk:%02x", isOK);
-            } else {
-                PrintAndLog("Command execute timeout");
-            }
-            break;
-	default: 
+	
+    if ( blockNo <= 3) {
+		if (!chinese_card){
+			PrintAndLog("Access Denied");
+		} else {
+			PrintAndLog("--specialblock no:%02x", blockNo);
+			PrintAndLog("--data: %s", sprint_hex(bldata, 4));
+			UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
+			memcpy(d.d.asBytes,bldata, 4);
+			SendCommand(&d);
+			if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+				uint8_t isOK  = resp.arg[0] & 0xff;
+				PrintAndLog("isOk:%02x", isOK);
+			} else {
+				PrintAndLog("Command execute timeout");
+			}  
+		}
+	} else {
 	    PrintAndLog("--block no:%02x", blockNo);
 	    PrintAndLog("--data: %s", sprint_hex(bldata, 4));        	
 	    UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
-            memcpy(e.d.asBytes,bldata, 4);
-            SendCommand(&e);
+		memcpy(e.d.asBytes,bldata, 4);
+		SendCommand(&e);
         if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
             uint8_t isOK  = resp.arg[0] & 0xff;
             PrintAndLog("isOk:%02x", isOK);
         } else {
             PrintAndLog("Command execute timeout");
         }
-        break;
     }
     return 0;
 }
@@ -133,20 +159,24 @@ int CmdHF14AMfUWrBl(const char *Cmd){
 //
 int CmdHF14AMfURdBl(const char *Cmd){
   
-    uint8_t blockNo = 0;	
-        
-    if (strlen(Cmd)<1) {
-        PrintAndLog("Usage:  hf mfu urdbl    <block number>");
-        PrintAndLog("        sample: hfu mfu urdbl 0");
+    uint8_t blockNo = -1;	
+
+ 	char cmdp = param_getchar(Cmd, 0);
+	
+	if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {	
+        PrintAndLog("Usage:  hf mfu rdbl <block number>");
+        PrintAndLog("        sample: hfu mfu rdbl 0");
         return 0;
     }       
         
     blockNo = param_get8(Cmd, 0);
-    // if (blockNo>MAX_ULTRA_BLOCKS){
-       // PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
-       // return 1;
-    // }
-    PrintAndLog("--block no:%02x", (int)blockNo);
+
+    if (blockNo > MAX_ULTRA_BLOCKS){
+       PrintAndLog("Error: Maximum number of blocks is 15 for Ultralight Cards!");
+       return 1;
+    }
+	
+    PrintAndLog("--block no:0x%02X (%d)", (int)blockNo, blockNo);
     UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
     SendCommand(&c);
 
@@ -154,298 +184,194 @@ int CmdHF14AMfURdBl(const char *Cmd){
     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
         uint8_t isOK    = resp.arg[0] & 0xff;
         uint8_t * data  = resp.d.asBytes;
-
+		
+		PrintAndLog("isOk: %02x", isOK);
+			
         if (isOK)
-            PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
-        else
-	    PrintAndLog("isOk:%02x", isOK);
-        } else {
-                PrintAndLog("Command execute timeout");
-        }
+            PrintAndLog("Data: %s", sprint_hex(data, 4));
+	} else {
+        PrintAndLog("Command execute timeout");
+    }
     return 0;
 }
 
 //
-//  Mifare Ultralight Read (Dump) Card Contents
+//  Mifare Ultralight / Ultralight-C;  Read and Dump Card Contents
 //
-int CmdHF14AMfURdCard(const char *Cmd){
+int CmdHF14AMfUDump(const char *Cmd){
+
+    FILE *fout;
+	char filename[FILE_PATH_SIZE] = {0x00};
+	char * fnameptr = filename;
+	
+    uint8_t *lockbytes_t = NULL;
+    uint8_t lockbytes[2] = {0x00};
+	
+    uint8_t *lockbytes_t2 = NULL;
+    uint8_t lockbytes2[2] = {0x00};
+
+    bool bit[16]  = {0x00};
+	bool bit2[16] = {0x00};
+	
     int i;
-    uint8_t BlockNo = 0;
-    int Pages=16;
-    uint8_t *lockbytes_t=NULL;
-    uint8_t lockbytes[2]={0,0};
-    bool bit[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool dump=false;
-    uint8_t datatemp[5]={0,0,0,0,0};
-        
-    uint8_t isOK  = 0;
-    uint8_t * data  = NULL;
-    FILE *fout = NULL;
+    uint8_t BlockNo      = 0;
+    int Pages            = 16;
+
+	bool tmplockbit		 = false;
+    uint8_t isOK         = 0;
+    uint8_t *data       = NULL;
+
+ 	char cmdp = param_getchar(Cmd, 0);
+	
+	if (cmdp == 'h' || cmdp == 'H') {
+		PrintAndLog("Reads all pages from Mifare Ultralight or Ultralight-C tag.");
+		PrintAndLog("It saves binary dump into the file `filename.bin` or `cardUID.bin`");		
+		PrintAndLog("Usage:  hf mfu dump <c> <filename w/o .bin>");
+		PrintAndLog("     <c>  optional cardtype c == Ultralight-C, if not defaults to Ultralight");
+		PrintAndLog("     sample: hf mfu dump");
+		PrintAndLog("           : hf mfu dump myfile");
+		PrintAndLog("           : hf mfu dump c myfile");
+		return 0;
+	}
 
-    if (strchr(Cmd,'x') != 0){
-        dump=true;
-        if ((fout = fopen("dump_ultralight_data.bin","wb")) == NULL) { 
-            PrintAndLog("Could not create file name dumpdata.bin");
-            return 1;	
-        }
-        PrintAndLog("Dumping Ultralight Card Data...");
-    }
-    PrintAndLog("Attempting to Read Ultralight... ");
-    UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo, Pages}};
+	// UL or UL-C?
+	Pages = (cmdp == 'c' || cmdp == 'C') ? 44 : 16;
+	
+	PrintAndLog("Dumping Ultralight%s Card Data...", (Pages ==16)?"":"-C");
+    	
+    UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo,Pages}};
     SendCommand(&c);
     UsbCommand resp;
 
     if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        isOK  = resp.arg[0] & 0xff;
-        data  = resp.d.asBytes;
-        PrintAndLog("isOk:%02x", isOK);
-        if (isOK) {
+		isOK  = resp.arg[0] & 0xff;
+        if (!isOK) {                
+			PrintAndLog("Command error");
+			return 0;
+		}
+		data  = resp.d.asBytes;
+	} else {
+		PrintAndLog("Command execute timeout");
+		return 0;
+	}
 		
-			// UID
-			memcpy( datatemp, data,3);
-			memcpy( datatemp+3, data+4, 4);
-			PrintAndLog("        UID :%s ", sprint_hex(datatemp, 7));
-			// BBC
-			// CT (cascade tag byte) 0x88 xor SN0 xor SN1 xor SN2 
-			int crc0 = 0x88 ^ data[0] ^ data[1] ^data[2];
-			if ( data[3] == crc0 ) {
-				PrintAndLog("       BCC0 :%02x - Ok", data[3]);
-			}
-			else{
-				PrintAndLog("       BCC0 :%02x - crc should be %02x", data[3], crc0);
-			}
-			
-			int crc1 = data[4] ^ data[5] ^ data[6] ^data[7];
-			if ( data[8] == crc1 ){
-				PrintAndLog("       BCC1 :%02x - Ok", data[8]);
-				}
-			else{
-				PrintAndLog("       BCC1 :%02x - crc should be %02x", data[8], crc1 );
-			}
-			
-			PrintAndLog("   Internal :%s ", sprint_hex(data + 9, 1));
-			
-			memcpy(datatemp, data+10, 2);
-			PrintAndLog("       Lock :%s - %s", sprint_hex(datatemp, 2),printBits( 2, &datatemp) );
-			
-			PrintAndLog(" OneTimePad :%s ", sprint_hex(data + 3*4, 4));
-			PrintAndLog("");
-			
-            for (i = 0; i < Pages; i++) {
-                switch(i){
-                    case 2:
-                        //process lock bytes
-                        lockbytes_t=data+(i*4);
-                        lockbytes[0]=lockbytes_t[2];
-                        lockbytes[1]=lockbytes_t[3];
-                        for(int j=0; j<16; j++){
-                            bit[j]=lockbytes[j/8] & ( 1 <<(7-j%8));
-                        }
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break; 
-                    case 3: 
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 4:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[3]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 5:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[2]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 6:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[1]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 7:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[0]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 8:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[15]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 9:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[14]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 10:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[13]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 11:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[12]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 12:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[11]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 13:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[10]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 14:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[9]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 15:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[8]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                   default:
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                  }
-            }
+	// Load lock bytes.
+	int j = 0;
+	
+	lockbytes_t = data + 8;
+	lockbytes[0] = lockbytes_t[2];
+	lockbytes[1] = lockbytes_t[3];
+	for(j = 0; j < 16; j++){
+		bit[j] = lockbytes[j/8] & ( 1 <<(7-j%8));
+	}		
+	
+	// Load bottom lockbytes if available
+	if ( Pages == 44 ) {
+		
+		lockbytes_t2 = data + (40*4);
+		lockbytes2[0] = lockbytes_t2[2];
+		lockbytes2[1] = lockbytes_t2[3];
+		for (j = 0; j < 16; j++) {
+			bit2[j] = lockbytes2[j/8] & ( 1 <<(7-j%8));
 		}
-    } else {                
-        PrintAndLog("Command1 execute timeout");
-    }
-    if (dump) fclose(fout);
-    return 0;
-}
+	}
 
-int CmdHF14AMfUDump(const char *Cmd){
-    int i;
-    uint8_t BlockNo = 0;
-    int Pages=16;
-    uint8_t *lockbytes_t=NULL;
-    uint8_t lockbytes[2]={0,0};
-    bool bit[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool dump=false;
-    uint8_t datatemp[5]={0,0,0,0,0};
-        
-    uint8_t isOK  = 0;
-    uint8_t * data  = NULL;
-    FILE *fout;
+	for (i = 0; i < Pages; ++i) {
+		
+		if ( i < 3 ) {
+			PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
+			continue;
+		}
+			
+		switch(i){
+			case 3: tmplockbit = bit[4]; break;
+			case 4:	tmplockbit = bit[3]; break;
+			case 5:	tmplockbit = bit[2]; break;
+			case 6:	tmplockbit = bit[1]; break;
+			case 7:	tmplockbit = bit[0]; break;
+			case 8:	tmplockbit = bit[15]; break;
+			case 9: tmplockbit = bit[14]; break;
+			case 10: tmplockbit = bit[13]; break;
+			case 11: tmplockbit = bit[12]; break;
+			case 12: tmplockbit = bit[11]; break;
+			case 13: tmplockbit = bit[10]; break;
+			case 14: tmplockbit = bit[9]; break;
+			case 15: tmplockbit = bit[8]; break;
+			case 16:
+			case 17:
+			case 18:
+			case 19: tmplockbit = bit2[6]; break;
+			case 20:
+			case 21:
+			case 22:
+			case 23: tmplockbit = bit2[5]; break; 
+			case 24:
+			case 25:
+			case 26:
+			case 27: tmplockbit = bit2[4]; break; 		    
+			case 28:
+			case 29:
+			case 30:
+			case 31: tmplockbit = bit2[2]; break;
+			case 32:
+			case 33:
+			case 34:
+			case 35: tmplockbit = bit2[1]; break; 
+			case 36:
+			case 37:
+			case 38:
+			case 39: tmplockbit = bit2[0]; break; 
+			case 40: tmplockbit = bit2[12]; break;
+			case 41: tmplockbit = bit2[11]; break;
+			case 42: tmplockbit = bit2[10]; break; //auth0
+			case 43: tmplockbit = bit2[9]; break;  //auth1
+			default: break;
+		}
+		PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),tmplockbit);
+	}  
+	
+	int len = 0;
+	if ( Pages == 16 )
+		len = param_getstr(Cmd,0,filename);
+	else
+		len = param_getstr(Cmd,1,filename);
+
+	if (len > FILE_PATH_SIZE) len = FILE_PATH_SIZE;
+
+	// user supplied filename?
+	if (len < 1) {
+	
+		// UID = data 0-1-2 4-5-6-7  (skips a beat)
+		sprintf(fnameptr, "%02X", data[0]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[1]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[2]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[4]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[5]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[6]);
+		fnameptr += 2;
+		sprintf(fnameptr, "%02X", data[7]);
+		fnameptr += 2;
+
+	} else {
+		fnameptr += len;
+	}
 
-    dump=true;
-    if ((fout = fopen("dump_ultralight_data.bin","wb")) == NULL) { 
-        PrintAndLog("Could not create file name dumpdata.bin");
-        return 1;	
-    }
-    PrintAndLog("Dumping Ultralight Card Data...");
-    	
-    PrintAndLog("Attempting to Read Ultralight... ");
-    UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo,Pages}};
-    SendCommand(&c);
-    UsbCommand resp;
+	// add file extension
+	sprintf(fnameptr, ".bin"); 
 
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        isOK  = resp.arg[0] & 0xff;
-        data  = resp.d.asBytes;
-        PrintAndLog("isOk:%02x", isOK);
-        if (isOK) 
-            for (i = 0; i < Pages; i++) {
-                switch(i){
-                    case 2:
-                        //process lock bytes
-                        lockbytes_t=data+(i*4);
-                        lockbytes[0]=lockbytes_t[2];
-                        lockbytes[1]=lockbytes_t[3];
-                        for(int j=0; j<16; j++){
-                            bit[j]=lockbytes[j/8] & ( 1 <<(7-j%8));
-                        }
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break; 
-                    case 3: 
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 4:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[3]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 5:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[2]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 6:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[1]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 7:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[0]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 8:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[15]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 9:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[14]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 10:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[13]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 11:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[12]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 12:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[11]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 13:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[10]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 14:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[9]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 15:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[8]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                   default:
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                }
-            }  
-    } else {                
-        PrintAndLog("Command1 execute timeout");
+	if ((fout = fopen(filename,"wb")) == NULL) { 
+		PrintAndLog("Could not create file name %s", filename);
+		return 1;	
 	}
-    if (dump) fclose(fout);
+	fwrite( data, 1, Pages*4, fout );
+	fclose(fout);
+	
+	PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages, Pages*4, filename);
     return 0;
 }
 
@@ -467,67 +393,82 @@ void rol (uint8_t *data, const size_t len){
 //
 int CmdHF14AMfucAuth(const char *Cmd){
         
-    uint8_t blockNo = 0, keyNo=0;
-    uint8_t e_RndB[8];
-    uint32_t cuid=0;
-    unsigned char RndARndB[16];
-    uint8_t key[16];
+    uint8_t blockNo = 0, keyNo = 0;
+    uint8_t e_RndB[8] = {0x00};
+    uint32_t cuid = 0;
+    unsigned char RndARndB[16] = {0x00};
+    uint8_t key[16] = {0x00};
     DES_cblock RndA, RndB;
-    DES_cblock iv={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+    DES_cblock iv;
     DES_key_schedule ks1,ks2;
     DES_cblock key1,key2;
 
-    if (strlen(Cmd)<1) {
-        PrintAndLog("Usage:  hf mfu auth k <key number>");
-        PrintAndLog("        sample: hf mfu auth k 0");
+	char cmdp = param_getchar(Cmd, 0);
+	// 
+	memset(iv, 0, 8);
+	
+    if (cmdp == 'h' || cmdp == 'H') {
+        PrintAndLog("Usage:  hf mfu cauth k <key number>");
+		PrintAndLog("      1 = all zeros key");
+		PrintAndLog("      2 = 0x00-0x0F key");
+		PrintAndLog("      3 = nfc key");
+		PrintAndLog("      4 = all ones key");
+		PrintAndLog("      defaults to 3DES standard key");
+        PrintAndLog("        sample : hf mfu cauth k");
+		PrintAndLog("               : hf mfu cauth k 3");
         return 0;
     } 
     
     //Change key to user defined one
-    if (strchr(Cmd,'k') != 0){
-        //choose a key
-        keyNo = param_get8(Cmd, 1);
-        switch(keyNo){
+    if (cmdp == 'k' || cmdp == 'K'){
+
+		keyNo = param_get8(Cmd, 1);
+        
+		switch(keyNo){
             case 0:
                 memcpy(key,key1_blnk_data,16);
                 break;
             case 1:
                 memcpy(key,key2_defa_data,16);
                 break;
-	    case 2:
+			case 2:	
                 memcpy(key,key4_nfc_data,16);
                 break;
-		case 3: 
+			case 3: 
 				memcpy(key,key5_ones_data,16);
                 break;
             default:
                 memcpy(key,key3_3des_data,16);
                 break;
         }
-    }else{
+    } else {
         memcpy(key,key3_3des_data,16);  
     }
+	
     memcpy(key1,key,8);
     memcpy(key2,key+8,8);
     DES_set_key((DES_cblock *)key1,&ks1);
     DES_set_key((DES_cblock *)key2,&ks2);
         
-    //Auth1
-    UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
-    SendCommand(&c);
-    UsbCommand resp;
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        uint8_t isOK  = resp.arg[0] & 0xff;
-	        cuid  = resp.arg[1];
-        uint8_t * data= resp.d.asBytes;
-
-         if (isOK){
-             PrintAndLog("enc(RndB):%s", sprint_hex(data+1, 8));
-             memcpy(e_RndB,data+1,8);
+	//Auth1
+	UsbCommand c = {CMD_MIFAREUC_AUTH1, {blockNo}};
+	SendCommand(&c);
+	UsbCommand resp;
+	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+		uint8_t isOK  = resp.arg[0] & 0xff;
+		cuid  = resp.arg[1];
+		uint8_t * data= resp.d.asBytes;
+
+		if (isOK){
+			PrintAndLog("enc(RndB):%s", sprint_hex(data+1, 8));
+			memcpy(e_RndB,data+1,8);
+		} else {
+			return 2; // auth failed.
+		}		
+	} else {
+		PrintAndLog("Command execute timeout");
+		return 1;
 	}
-    } else {
-        PrintAndLog("Command execute timeout");
-    }
        
     //Do crypto magic
     DES_random_key(&RndA);
@@ -546,19 +487,22 @@ int CmdHF14AMfucAuth(const char *Cmd){
     memcpy(d.d.asBytes,RndARndB, 16);
     SendCommand(&d);
 
-    UsbCommand respb;
-    if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
-        uint8_t  isOK  = respb.arg[0] & 0xff;
-        uint8_t * data2= respb.d.asBytes;
+	UsbCommand respb;
+	if (WaitForResponseTimeout(CMD_ACK,&respb,1500)) {
+		uint8_t  isOK  = respb.arg[0] & 0xff;
+		uint8_t * data2= respb.d.asBytes;
 
-        if (isOK){
-            PrintAndLog("enc(RndA'):%s", sprint_hex(data2+1, 8));
-	}
-                 
-    } else {
-        PrintAndLog("Command execute timeout");
-    } 
-    return 1;
+		if (isOK){
+			PrintAndLog("enc(RndA'):%s", sprint_hex(data2+1, 8));
+		} else {
+			return 2;
+		}
+		
+	} else {
+		PrintAndLog("Command execute timeout");
+		return 1;
+	} 
+    return 0;
 }
 
 //
@@ -566,455 +510,43 @@ int CmdHF14AMfucAuth(const char *Cmd){
 //
 int CmdHF14AMfUCRdBl(const char *Cmd)
 {
-
-    uint8_t blockNo = 0;
-        
-    if (strlen(Cmd)<1) {
-        PrintAndLog("Usage:  hf mfu ucrdbl    <block number>");
-        PrintAndLog("        sample: hf mfu ucrdbl 0");
+    uint8_t blockNo = -1;
+ 	char cmdp = param_getchar(Cmd, 0);
+	
+	if (strlen(Cmd) < 1 || cmdp == 'h' || cmdp == 'H') {
+        PrintAndLog("Usage:  hf mfu crdbl  <block number>");
+        PrintAndLog("        sample: hf mfu crdbl 0");
         return 0;
     }       
         
     blockNo = param_get8(Cmd, 0);
-    if (blockNo>MAX_ULTRAC_BLOCKS){
-        PrintAndLog("Error: Maximum number of readable blocks is 44 for Ultralight Cards!");
+	if (blockNo < 0) {
+		PrintAndLog("Wrong block number");
+		return 1;
+	}
+	
+    if (blockNo > MAX_ULTRAC_BLOCKS ){
+        PrintAndLog("Error: Maximum number of readable blocks is 47 for Ultralight-C Cards!");
         return 1;
-    }
-    PrintAndLog("--block no:%02x", (int)blockNo);
+    } 
+	
+    PrintAndLog("--block no: 0x%02X (%d)", (int)blockNo, blockNo);
 
     //Read Block
     UsbCommand e = {CMD_MIFAREU_READBL, {blockNo}};
     SendCommand(&e);
     UsbCommand resp_c;
     if (WaitForResponseTimeout(CMD_ACK,&resp_c,1500)) {
-        uint8_t                isOK  = resp_c.arg[0] & 0xff;
-        uint8_t              * data  = resp_c.d.asBytes;
+        uint8_t isOK = resp_c.arg[0] & 0xff;
+        uint8_t *data = resp_c.d.asBytes;
+		
+		PrintAndLog("isOk: %02x", isOK);
         if (isOK)
-            PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
-        else
-            PrintAndLog("isOk:%02x", isOK);
-        } else {
-            PrintAndLog("Command execute timeout");
-        }
-    return 0;
-}
-
-//
-// Ultralight C Read (or Dump) Card Contents
-//
-int CmdHF14AMfUCRdCard(const char *Cmd){
-    int i;
-    uint8_t BlockNo = 0;
-    int Pages=44;
-    uint8_t *lockbytes_t=NULL;
-    uint8_t lockbytes[2]={0,0};
-    uint8_t *lockbytes_t2=NULL;
-    uint8_t lockbytes2[2]={0,0};
-    bool bit[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool bit2[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool dump=false;
-    uint8_t datatemp[5]={0,0,0,0,0};
-        
-    uint8_t isOK  = 0;
-    uint8_t * data  = NULL;
-    FILE *fout = NULL;
-
-    if (strchr(Cmd,'x') != 0){
-        dump=true;
-        if ((fout = fopen("dump_ultralightc_data.bin","wb")) == NULL) { 
-            PrintAndLog("Could not create file name dumpdata.bin");
-            return 1;	
-      }
-      PrintAndLog("Dumping Ultralight C Card Data...");
-    }
-    PrintAndLog("Attempting to Read Ultralight C... ");
-    UsbCommand c = {CMD_MIFAREUC_READCARD, {BlockNo, Pages}};
-    SendCommand(&c);
-    UsbCommand resp;
-
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        isOK  = resp.arg[0] & 0xff;
-        data  = resp.d.asBytes;
-	//Pages=sizeof(data)/sizeof(data[0]);
-        PrintAndLog("isOk:%02x", isOK);
-        if (isOK) 
-            for (i = 0; i < Pages; i++) {
-                switch(i){
-                    case 2:
-                        //process lock bytes
-                        lockbytes_t=data+(i*4);
-                        lockbytes[0]=lockbytes_t[2];
-                        lockbytes[1]=lockbytes_t[3];
-                        for(int j=0; j<16; j++){
-                            bit[j]=lockbytes[j/8] & ( 1 <<(7-j%8));
-                        }
-                        //might as well read bottom lockbytes too
-                        lockbytes_t2=data+(40*4);
-                        lockbytes2[0]=lockbytes_t2[2];
-                        lockbytes2[1]=lockbytes_t2[3];
-                        for(int j=0; j<16; j++){
-                            bit2[j]=lockbytes2[j/8] & ( 1 <<(7-j%8));
-                        }
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 3: 
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 4:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[3]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 5:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[2]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 6:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[1]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 7:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[0]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 8:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[15]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 9:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[14]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 10:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[13]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 11:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[12]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 12:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[11]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 13:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[10]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 14:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[9]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 15:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[8]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 16:
-                    case 17:
-                    case 18:
-                    case 19:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[6]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 20:
-                    case 21:
-                    case 22:
-                    case 23:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[5]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 
-                    case 24:
-                    case 25:
-                    case 26:
-                    case 27:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 		    
-                    case 28:
-                    case 29:
-                    case 30:
-                    case 31:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[2]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 32:
-                    case 33:
-                    case 34:
-                    case 35:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[1]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 
-                    case 36:
-                    case 37:
-                    case 38:
-                    case 39:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[0]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 
-                    case 40:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[12]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 41:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[11]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 42:
-                        //auth0
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[10]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 43:  
-                        //auth1
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[9]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 
-                    default:
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;	    
-                   } 
-            }
-      
-        } else {                
-            PrintAndLog("Command1 execute timeout");
-        }
-    if (dump) fclose(fout);
-    return 0;
-}
-
-//
-// Ultralight C Dump Card Contents to file
-//
-int CmdHF14AMfUCDump(const char *Cmd){
-    int i;
-    uint8_t BlockNo = 0;
-    int Pages=44;
-    uint8_t *lockbytes_t=NULL;
-    uint8_t lockbytes[2]={0,0};
-    uint8_t *lockbytes_t2=NULL;
-    uint8_t lockbytes2[2]={0,0};
-    bool bit[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool bit2[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
-    bool dump=false;
-    uint8_t datatemp[5]={0,0,0,0,0};
-        
-    uint8_t isOK  = 0;
-    uint8_t * data  = NULL;
-    FILE *fout;
-
-	dump=true;
-	if ((fout = fopen("dump_ultralightc_data.bin","wb")) == NULL) { 
-		PrintAndLog("Could not create file name dumpdata.bin");
-		return 1;	
-	}
-	PrintAndLog("Dumping Ultralight C Card Data...");
-   PrintAndLog("Attempting to Read Ultralight C... ");
-    UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo,Pages}};
-    SendCommand(&c);
-    UsbCommand resp;
-
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        isOK  = resp.arg[0] & 0xff;
-        data  = resp.d.asBytes;
-        PrintAndLog("isOk:%02x", isOK);
-        if (isOK) 
-            for (i = 0; i < Pages; i++) {
-                switch(i){
-                    case 2:
-                        //process lock bytes
-                        lockbytes_t=data+(i*4);
-                        lockbytes[0]=lockbytes_t[2];
-                        lockbytes[1]=lockbytes_t[3];
-                        for(int j=0; j<16; j++){
-                            bit[j]=lockbytes[j/8] & ( 1 <<(7-j%8));
-
-                        }
-                        //might as well read bottom lockbytes too
-                        lockbytes_t2=data+(40*4);
-                        lockbytes2[0]=lockbytes_t2[2];
-                        lockbytes2[1]=lockbytes_t2[3];
-                        for(int j=0; j<16; j++){
-                            bit2[j]=lockbytes2[j/8] & ( 1 <<(7-j%8));
-                        }
-
-                        PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 3: 
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 4:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[3]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 5:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[2]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 6:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[1]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 7:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[0]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 8:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[15]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 9:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[14]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 10:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[13]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 11:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[12]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 12:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[11]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 13:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[10]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 14:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[9]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 15:
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit[8]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 16:
-                    case 17:
-                    case 18:
-                    case 19:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[6]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break;
-                    case 20:
-                    case 21:
-                    case 22:
-                    case 23:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[5]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 
-                    case 24:
-                    case 25:
-                    case 26:
-                    case 27:  
-                        PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[4]);
-                        memcpy(datatemp,data + i * 4,4);
-                        if (dump) fwrite ( datatemp, 1, 4, fout );
-                        break; 		    
-                   case 28:
-                   case 29:
-                   case 30:
-                   case 31:  
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[2]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break;
-                   case 32:
-                   case 33:
-                   case 34:
-                   case 35:  
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[1]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break; 
-                   case 36:
-                   case 37:
-                   case 38:
-                   case 39:  
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[0]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break; 
-                   case 40:
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[12]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break;
-                   case 41:
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[11]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break;
-                   case 42:
-                       //auth0
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[10]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break;
-                   case 43:  
-                       //auth1
-                       PrintAndLog("Block %02x:%s [%d]", i,sprint_hex(data + i * 4, 4),bit2[9]);
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break; 
-                   default:
-                       PrintAndLog("Block %02x:%s ", i,sprint_hex(data + i * 4, 4));
-                       memcpy(datatemp,data + i * 4,4);
-                       if (dump) fwrite ( datatemp, 1, 4, fout );
-                       break;	    
-                   } 
-            }
-      
-        } else {                
-            PrintAndLog("Command1 execute timeout");
+            PrintAndLog("Data: %s", sprint_hex(data, 4));
+			
+	} else {
+		PrintAndLog("Command execute timeout");
 	}
-    if (dump) fclose(fout);
     return 0;
 }
 
@@ -1023,108 +555,69 @@ int CmdHF14AMfUCDump(const char *Cmd){
 //
 int CmdHF14AMfUCWrBl(const char *Cmd){
     
-    uint8_t blockNo = 0;
-    bool chinese_card=0;
-    uint8_t bldata[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+    uint8_t blockNo = -1;
+    bool chinese_card = FALSE;
+    uint8_t bldata[16] = {0x00};
     UsbCommand resp;
-        
-    if (strlen(Cmd)<3) {
-        PrintAndLog("Usage:  hf mfu ucwrbl <block number> <block data (8 hex symbols)> [w]");
-        PrintAndLog("        sample: hf mfu uwrbl 0 01020304");
+
+ 	char cmdp = param_getchar(Cmd, 0);
+	
+	if (strlen(Cmd) < 3 || cmdp == 'h' || cmdp == 'H') {	
+        PrintAndLog("Usage:  hf mfu cwrbl <block number> <block data (8 hex symbols)> [w]");
+		PrintAndLog("       [block number]");
+		PrintAndLog("       [block data] - (8 hex symbols)");
+		PrintAndLog("       [w] - Chinese magic ultralight tag");
+		PrintAndLog("");
+        PrintAndLog("        sample: hf mfu cwrbl 0 01020304");
+		PrintAndLog("");
         return 0;
-    }       
+    }
+	
     blockNo = param_get8(Cmd, 0);
-    if (blockNo>(MAX_ULTRAC_BLOCKS+4)){
-        PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight Cards!");
+    if (blockNo > MAX_ULTRAC_BLOCKS ){
+        PrintAndLog("Error: Maximum number of blocks is 47 for Ultralight-C Cards!");
         return 1;
     }
+	
     if (param_gethex(Cmd, 1, bldata, 8)) {
         PrintAndLog("Block data must include 8 HEX symbols");
         return 1;
     }
-    if (strchr(Cmd,'w') != 0) {
-        chinese_card=1; 
+	
+    if (strchr(Cmd,'w') != 0  || strchr(Cmd,'W') != 0 ) {
+        chinese_card = TRUE; 
     }
-    switch(blockNo){
-        case 0:
-            if (!chinese_card){
-                 PrintAndLog("Access Denied");  
-            }else{
-                PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(d.d.asBytes,bldata, 4);
-                SendCommand(&d);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }  
-            }
-            break;
-        case 1:
-            if (!chinese_card){
-                PrintAndLog("Access Denied");
-            }else{	
-                PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(d.d.asBytes,bldata, 4);
-                SendCommand(&d);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }
-           }
-           break;
-        case 2:
-            if (!chinese_card){
-                PrintAndLog("Access Denied");
-            }else{	
-                PrintAndLog("--specialblock no:%02x", blockNo);
-                PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-                UsbCommand c = {CMD_MIFAREU_WRITEBL, {blockNo}};
-                memcpy(c.d.asBytes, bldata, 4);
-                SendCommand(&c);
-                if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                    uint8_t isOK  = resp.arg[0] & 0xff;
-                    PrintAndLog("isOk:%02x", isOK);
-                } else {
-                    PrintAndLog("Command execute timeout");
-                }
-            }
-            break;
-        case 3:
-            PrintAndLog("--specialblock no:%02x", blockNo);
-            PrintAndLog("--data: %s", sprint_hex(bldata, 4));
-            UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
-            memcpy(d.d.asBytes,bldata, 4);
-            SendCommand(&d);
-            if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-                uint8_t isOK  = resp.arg[0] & 0xff;
-                PrintAndLog("isOk:%02x", isOK);
-            } else {
-                PrintAndLog("Command execute timeout");
-            }
-            break;
-        default: 
-            PrintAndLog("--block no:%02x", blockNo);
-            PrintAndLog("--data: %s", sprint_hex(bldata, 4));        	
+	
+	if ( blockNo <= 3 ) {
+		if (!chinese_card){
+			 PrintAndLog("Access Denied");  
+		} else {
+			PrintAndLog("--Special block no: 0x%02x", blockNo);
+			PrintAndLog("--Data: %s", sprint_hex(bldata, 4));
+			UsbCommand d = {CMD_MIFAREU_WRITEBL, {blockNo}};
+			memcpy(d.d.asBytes,bldata, 4);
+			SendCommand(&d);
+			if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+				uint8_t isOK  = resp.arg[0] & 0xff;
+				PrintAndLog("isOk:%02x", isOK);
+			} else {
+				PrintAndLog("Command execute timeout");
+			}  
+		}	
+	} else {
+            PrintAndLog("--Block no : 0x%02x", blockNo);
+            PrintAndLog("--Data: %s", sprint_hex(bldata, 4));        	
             UsbCommand e = {CMD_MIFAREU_WRITEBL, {blockNo}};
             memcpy(e.d.asBytes,bldata, 4);
             SendCommand(&e);
             if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
                 uint8_t isOK  = resp.arg[0] & 0xff;
-                PrintAndLog("isOk:%02x", isOK);
+                PrintAndLog("isOk : %02x", isOK);
             } else {
                 PrintAndLog("Command execute timeout");
             }
-            break;
-        }
-        return 0;
+	}
+	return 0;
 }
 
 //------------------------------------
@@ -1132,22 +625,19 @@ int CmdHF14AMfUCWrBl(const char *Cmd){
 //------------------------------------
 static command_t CommandTable[] =
 {
-    {"help",    CmdHelp,		1,"This help"},
-    {"dbg",     CmdHF14AMfDbg,		0,"Set default debug mode"},
-    {"urdbl",   CmdHF14AMfURdBl,        0,"Read MIFARE Ultralight block"},
-    {"urdcard", CmdHF14AMfURdCard,      0,"Read MIFARE Ultralight Card"},
-    {"udump",   CmdHF14AMfUDump,	0,"Dump MIFARE Ultralight tag to binary file"},
-    {"uwrbl",   CmdHF14AMfUWrBl,	0,"Write MIFARE Ultralight block"},
-    {"ucrdbl",  CmdHF14AMfUCRdBl,       0,"Read MIFARE Ultralight C block"},
-    {"ucrdcard",CmdHF14AMfUCRdCard,     0,"Read MIFARE Ultralight C Card"},
-    {"ucdump",  CmdHF14AMfUCDump,	0,"Dump MIFARE Ultralight C tag to binary file"},
-    {"ucwrbl",  CmdHF14AMfUCWrBl,	0,"Write MIFARE Ultralight C block"},
-    {"auth",    CmdHF14AMfucAuth,	0,"Ultralight C Authentication"},
+    {"help",	CmdHelp,			1,"This help"},
+    {"dbg",		CmdHF14AMfDbg,		0,"Set default debug mode"},
+	{"info",	CmdHF14AMfUInfo,	0,"Taginfo"},
+	{"dump",	CmdHF14AMfUDump,	0,"Dump MIFARE Ultralight / Ultralight-C tag to binary file"},
+    {"rdbl",	CmdHF14AMfURdBl,	0,"Read block - MIFARE Ultralight"},
+    {"wrbl",	CmdHF14AMfUWrBl,	0,"Write block - MIFARE Ultralight"},    
+    {"crdbl",	CmdHF14AMfUCRdBl,	0,"Read block - MIFARE Ultralight C"},
+    {"cwrbl",	CmdHF14AMfUCWrBl,	0,"Write MIFARE Ultralight C block"},   
+	{"cauth",	CmdHF14AMfucAuth,	0,"try a Ultralight C Authentication"},
     {NULL, NULL, 0, NULL}
 };
 
 int CmdHFMFUltra(const char *Cmd){
-    // flush
     WaitForResponseTimeout(CMD_ACK,NULL,100);
     CmdsParse(CommandTable, Cmd);
     return 0;