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Merge branch 'master' of https://github.com/Proxmark/proxmark3
[proxmark3-svn] / client / cmdhfmfu.c
diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 3b9f2e6d9d4919963c9a980e43a2d894e95f49d1..8dfb9a3b1cceeb075f0facb06e37119a23a6c9e3 100644 (file)
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -7,125 +7,148 @@
 //-----------------------------------------------------------------------------
 // High frequency MIFARE ULTRALIGHT (C) commands
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 // High frequency MIFARE ULTRALIGHT (C) commands
 //-----------------------------------------------------------------------------
-#include <openssl/des.h>
+//#include <openssl/des.h>
+#include "loclass/des.h"
+#include "cmdhfmfu.h"
 #include "cmdhfmf.h"
 #include "cmdhfmf.h"
+#include "cmdhf14a.h"
+
+
+#define MAX_ULTRA_BLOCKS   0x0f
+#define MAX_ULTRAC_BLOCKS  0x2f
+//#define MAX_ULTRAC_BLOCKS  0x2c
 
 
-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 };
-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 };
 
 static int CmdHelp(const char *Cmd);
 
 
 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){
 //
 //  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};
-    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");
-        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;
-    }
-    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; 
-    }
-    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));           
-           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);
-        } else {
-            PrintAndLog("Command execute timeout");
-        }
-        break;
-    }
-    return 0;
+       uint8_t blockNo    = -1;
+       bool chinese_card  = FALSE;
+       uint8_t bldata[16] = {0x00};
+       UsbCommand resp;
+
+       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){
+               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  || strchr(Cmd,'W') != 0 ) {
+               chinese_card = TRUE; 
+       }
+       
+       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);
+               if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+                       uint8_t isOK  = resp.arg[0] & 0xff;
+                       PrintAndLog("isOk:%02x", isOK);
+               } else {
+                       PrintAndLog("Command execute timeout");
+               }
+       }
+       return 0;
 }
 
 //
 }
 
 //
@@ -133,329 +156,215 @@ int CmdHF14AMfUWrBl(const char *Cmd){
 //
 int CmdHF14AMfURdBl(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");
-        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);
-    UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
-    SendCommand(&c);
-
-    UsbCommand resp;
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-        uint8_t isOK    = resp.arg[0] & 0xff;
-        uint8_t * data  = resp.d.asBytes;
-
-        if (isOK)
-            PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
-        else
-           PrintAndLog("isOk:%02x", isOK);
-        } else {
-                PrintAndLog("Command execute timeout");
-        }
-    return 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:0x%02X (%d)", (int)blockNo, blockNo);
+       UsbCommand c = {CMD_MIFAREU_READBL, {blockNo}};
+       SendCommand(&c);
+
+       UsbCommand resp;
+       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("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 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;
-
-    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}};
-    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) {
+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;
+
+       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;
+       }
+
+       // UL or UL-C?
+       Pages = (cmdp == 'c' || cmdp == 'C') ? 44 : 16;
+       
+       PrintAndLog("Dumping Ultralight%s Card Data...", (Pages ==16)?"":"-C");
                
                
-                       // 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;
-                  }
-            }
+       UsbCommand c = {CMD_MIFAREU_READCARD, {BlockNo,Pages}};
+       SendCommand(&c);
+       UsbCommand resp;
+
+       if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+               isOK  = resp.arg[0] & 0xff;
+               if (!isOK) {                
+                       PrintAndLog("Command error");
+                       return 0;
                }
                }
-    } else {                
-        PrintAndLog("Command1 execute timeout");
-    }
-    if (dump) fclose(fout);
-    return 0;
-}
+               data  = resp.d.asBytes;
+       } else {
+               PrintAndLog("Command execute timeout");
+               return 0;
+       }
+               
+       // 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));
+               }
+       }
 
 
-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;
-
-    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;
-
-    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");
+       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-5) len = FILE_PATH_SIZE-5;
+
+       // user supplied filename?
+       if (len < 1) {
+       
+               // UID = data 0-1-2 4-5-6-7  (skips a beat)
+               sprintf(fnameptr,"%02X%02X%02X%02X%02X%02X%02X.bin",
+                       data[0],data[1], data[2], data[4],data[5],data[6], data[7]);
+
+       } else {
+               sprintf(fnameptr + len," .bin");
        }
        }
-    if (dump) fclose(fout);
-    return 0;
+
+
+       if ((fout = fopen(filename,"wb")) == NULL) { 
+               PrintAndLog("Could not create file name %s", filename);
+               return 1;       
+       }
+       fwrite( data, 1, Pages*4, fout );
+       fclose(fout);
+       
+       PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages, Pages*4, filename);
+       return 0;
 }
 
 // Needed to Authenticate to Ultralight C tags
 void rol (uint8_t *data, const size_t len){
 }
 
 // Needed to Authenticate to Ultralight C tags
 void rol (uint8_t *data, const size_t len){
-    uint8_t first = data[0];
-    for (size_t i = 0; i < len-1; i++) {
-        data[i] = data[i+1];
-    }
-    data[len-1] = first;
+       uint8_t first = data[0];
+       for (size_t i = 0; i < len-1; i++) {
+               data[i] = data[i+1];
+       }
+       data[len-1] = first;
 }
 
 //-------------------------------------------------------------------------------
 }
 
 //-------------------------------------------------------------------------------
@@ -466,665 +375,340 @@ void rol (uint8_t *data, const size_t len){
 // Ultralight C Authentication Demo {currently uses hard-coded key}
 //
 int CmdHF14AMfucAuth(const char *Cmd){
 // Ultralight C Authentication Demo {currently uses hard-coded key}
 //
 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];
-    DES_cblock RndA, RndB;
-    DES_cblock iv={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-    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");
-        return 0;
-    } 
-    
-    //Change key to user defined one
-    if (strchr(Cmd,'k') != 0){
-        //choose a key
-        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:
-                memcpy(key,key4_nfc_data,16);
-                break;
-               case 3: 
-                               memcpy(key,key5_ones_data,16);
-                break;
-            default:
-                memcpy(key,key3_3des_data,16);
-                break;
-        }
-    }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);
+
+       uint8_t default_keys[5][16] = {
+               { 0x42,0x52,0x45,0x41,0x4b,0x4d,0x45,0x49,0x46,0x59,0x4f,0x55,0x43,0x41,0x4e,0x21 },// 3des std key
+               { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },// all zeroes
+               { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f },// 0x00-0x0F
+               { 0x49,0x45,0x4D,0x4B,0x41,0x45,0x52,0x42,0x21,0x4E,0x41,0x43,0x55,0x4F,0x59,0x46 },// NFC-key
+               { 0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01 }     // all ones
+       };
+
+       char cmdp = param_getchar(Cmd, 0);
+       
+       uint8_t keyNo = 0;
+       bool errors = false;
+       //Change key to user defined one
+       if (cmdp == 'k' || cmdp == 'K'){
+               keyNo = param_get8(Cmd, 1);
+               if(keyNo >= 4) errors = true;
        }
        }
-    } else {
-        PrintAndLog("Command execute timeout");
-    }
-       
-    //Do crypto magic
-    DES_random_key(&RndA);
-    DES_ede2_cbc_encrypt(e_RndB,RndB,sizeof(e_RndB),&ks1,&ks2,&iv,0);
-    PrintAndLog("     RndB:%s",sprint_hex(RndB, 8));
-    PrintAndLog("     RndA:%s",sprint_hex(RndA, 8));
-    rol(RndB,8);
-    memcpy(RndARndB,RndA,8);
-    memcpy(RndARndB+8,RndB,8);
-    PrintAndLog("     RA+B:%s",sprint_hex(RndARndB, 16));
-    DES_ede2_cbc_encrypt(RndARndB,RndARndB,sizeof(RndARndB),&ks1,&ks2,&e_RndB,1);
-    PrintAndLog("enc(RA+B):%s",sprint_hex(RndARndB, 16));
-
-    //Auth2
-    UsbCommand d = {CMD_MIFAREUC_AUTH2, {cuid}};
-    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;
-
-        if (isOK){
-            PrintAndLog("enc(RndA'):%s", sprint_hex(data2+1, 8));
+
+       if (cmdp == 'h' || cmdp == 'H') {
+               errors = true;
        }
        }
-                 
-    } else {
-        PrintAndLog("Command execute timeout");
-    } 
-    return 1;
+
+       if (errors) {
+               PrintAndLog("Usage:  hf mfu cauth k <key number>");
+               PrintAndLog("      0 (default): 3DES standard key");
+               PrintAndLog("      1 : all zeros key");
+               PrintAndLog("      2 : 0x00-0x0F key");
+               PrintAndLog("      3 : nfc key");
+               PrintAndLog("      4 : all ones key");
+               PrintAndLog("        sample : hf mfu cauth k");
+               PrintAndLog("               : hf mfu cauth k 3");
+               return 0;
+       } 
+
+       uint8_t random_a[8]     = { 1,1,1,1,1,1,1,1 };
+       //uint8_t enc_random_a[8] = { 0 };
+       uint8_t random_b[8]     = { 0 };
+       uint8_t enc_random_b[8] = { 0 };
+       uint8_t random_a_and_b[16] = { 0 };
+       des3_context ctx        = { 0 };
+       uint8_t *key = default_keys[keyNo];
+       uint8_t blockNo = 0;
+       uint32_t cuid = 0;
+
+       //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(enc_random_b,data+1,8);
+               } else {
+                       PrintAndLog("Auth failed");
+                       return 2; // auth failed.
+               }               
+       } else {
+               PrintAndLog("Command execute timeout");
+               return 1;
+       }
+
+       uint8_t iv[8]           = { 0 };
+       // Do we need random ? Right now we use all ones, is that random enough ?
+//    DES_random_key(&RndA);
+
+       PrintAndLog("     RndA  :%s",sprint_hex(random_a, 8));
+       PrintAndLog("     e_RndB:%s",sprint_hex(enc_random_b, 8));
+
+       des3_set2key_dec(&ctx, key);
+
+       des3_crypt_cbc(&ctx      // des3_context *ctx
+               , DES_DECRYPT        // int mode
+               , sizeof(random_b)   // size_t length
+               , iv                 // unsigned char iv[8]
+               , enc_random_b       // const unsigned char *input
+               , random_b           // unsigned char *output
+               );
+
+       PrintAndLog("     RndB:%s",sprint_hex(random_b, 8));
+
+       rol(random_b,8);
+       memcpy(random_a_and_b  ,random_a,8);
+       memcpy(random_a_and_b+8,random_b,8);
+       
+       PrintAndLog("     RA+B:%s",sprint_hex(random_a_and_b, 16));
+
+       des3_set2key_enc(&ctx, key);
+
+       des3_crypt_cbc(&ctx          // des3_context *ctx
+               , DES_ENCRYPT            // int mode
+               , sizeof(random_a_and_b)   // size_t length
+               , enc_random_b           // unsigned char iv[8]
+               , random_a_and_b         // const unsigned char *input
+               , random_a_and_b         // unsigned char *output
+               );
+
+       PrintAndLog("enc(RA+B):%s",sprint_hex(random_a_and_b, 16));
+
+       //Auth2
+       UsbCommand d = {CMD_MIFAREUC_AUTH2, {cuid}};
+       memcpy(d.d.asBytes,random_a_and_b, 16);
+       SendCommand(&d);
+
+       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 {
+                       return 2;
+               }
+               
+       } else {
+               PrintAndLog("Command execute timeout");
+               return 1;
+       } 
+       return 0;
 }
 }
+/**
+A test function to validate that the polarssl-function works the same 
+was as the openssl-implementation. 
+Commented out, since it requires openssl 
 
 
-//
-// Ultralight C Read Single Block
-//
-int CmdHF14AMfUCRdBl(const char *Cmd)
+int CmdTestDES(const char * cmd)
 {
 {
+       uint8_t key[16] = {0x00};       
+       
+       memcpy(key,key3_3des_data,16);  
+       DES_cblock RndA, RndB;
+
+       PrintAndLog("----------OpenSSL DES implementation----------");
+       {
+               uint8_t e_RndB[8] = {0x00};
+               unsigned char RndARndB[16] = {0x00};
+
+               DES_cblock iv = { 0 };
+               DES_key_schedule ks1,ks2;
+               DES_cblock key1,key2;
+
+               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);
+
+               DES_random_key(&RndA);
+               PrintAndLog("     RndA:%s",sprint_hex(RndA, 8));
+               PrintAndLog("     e_RndB:%s",sprint_hex(e_RndB, 8));
+               //void DES_ede2_cbc_encrypt(const unsigned char *input,
+               //    unsigned char *output, long length, DES_key_schedule *ks1,
+               //    DES_key_schedule *ks2, DES_cblock *ivec, int enc);
+               DES_ede2_cbc_encrypt(e_RndB,RndB,sizeof(e_RndB),&ks1,&ks2,&iv,0);
+
+               PrintAndLog("     RndB:%s",sprint_hex(RndB, 8));
+               rol(RndB,8);
+               memcpy(RndARndB,RndA,8);
+               memcpy(RndARndB+8,RndB,8);
+               PrintAndLog("     RA+B:%s",sprint_hex(RndARndB, 16));
+               DES_ede2_cbc_encrypt(RndARndB,RndARndB,sizeof(RndARndB),&ks1,&ks2,&e_RndB,1);
+               PrintAndLog("enc(RA+B):%s",sprint_hex(RndARndB, 16));
 
 
-    uint8_t blockNo = 0;
-        
-    if (strlen(Cmd)<1) {
-        PrintAndLog("Usage:  hf mfu ucrdbl    <block number>");
-        PrintAndLog("        sample: hf mfu ucrdbl 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!");
-        return 1;
-    }
-    PrintAndLog("--block no:%02x", (int)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;
-        if (isOK)
-            PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
-        else
-            PrintAndLog("isOk:%02x", isOK);
-        } else {
-            PrintAndLog("Command execute timeout");
-        }
-    return 0;
-}
+       }
+       PrintAndLog("----------PolarSSL implementation----------");
+       {
+               uint8_t random_a[8]     = { 0 };
+               uint8_t enc_random_a[8] = { 0 };
+               uint8_t random_b[8]     = { 0 };
+               uint8_t enc_random_b[8] = { 0 };
+               uint8_t random_a_and_b[16] = { 0 };
+               des3_context ctx        = { 0 };
+
+               memcpy(random_a, RndA,8);
+
+               uint8_t output[8]       = { 0 };
+               uint8_t iv[8]           = { 0 };
+
+               PrintAndLog("     RndA  :%s",sprint_hex(random_a, 8));
+               PrintAndLog("     e_RndB:%s",sprint_hex(enc_random_b, 8));
+
+               des3_set2key_dec(&ctx, key);
+
+               des3_crypt_cbc(&ctx      // des3_context *ctx
+                       , DES_DECRYPT        // int mode
+                       , sizeof(random_b)   // size_t length
+                       , iv                 // unsigned char iv[8]
+                       , enc_random_b       // const unsigned char *input
+                       , random_b           // unsigned char *output
+                       );
+
+               PrintAndLog("     RndB:%s",sprint_hex(random_b, 8));
+
+               rol(random_b,8);
+               memcpy(random_a_and_b  ,random_a,8);
+               memcpy(random_a_and_b+8,random_b,8);
+               
+               PrintAndLog("     RA+B:%s",sprint_hex(random_a_and_b, 16));
 
 
-//
-// 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;
-}
+               des3_set2key_enc(&ctx, key);
+
+               des3_crypt_cbc(&ctx          // des3_context *ctx
+                       , DES_ENCRYPT            // int mode
+                       , sizeof(random_a_and_b)   // size_t length
+                       , enc_random_b           // unsigned char iv[8]
+                       , random_a_and_b         // const unsigned char *input
+                       , random_a_and_b         // unsigned char *output
+                       );
 
 
+               PrintAndLog("enc(RA+B):%s",sprint_hex(random_a_and_b, 16));
+       }
+       return 0;       
+}
+**/
 //
 //
-// Ultralight C Dump Card Contents to file
+// Ultralight C Read Single Block
 //
 //
-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;       
+int CmdHF14AMfUCRdBl(const char *Cmd)
+{
+       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 < 0) {
+               PrintAndLog("Wrong block number");
+               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");
+       
+       if (blockNo > MAX_ULTRAC_BLOCKS ){
+               PrintAndLog("Error: Maximum number of readable blocks is 47 for Ultralight-C Cards!");
+               return 1;
+       } 
+       
+       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;
+               
+               PrintAndLog("isOk: %02x", isOK);
+               if (isOK)
+                       PrintAndLog("Data: %s", sprint_hex(data, 4));
+                       
+       } else {
+               PrintAndLog("Command execute timeout");
        }
        }
-    if (dump) fclose(fout);
-    return 0;
+       return 0;
 }
 
 //
 //  Mifare Ultralight C Write Single Block
 //
 int CmdHF14AMfUCWrBl(const char *Cmd){
 }
 
 //
 //  Mifare Ultralight C Write Single Block
 //
 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};
-    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");
-        return 0;
-    }       
-    blockNo = param_get8(Cmd, 0);
-    if (blockNo>(MAX_ULTRAC_BLOCKS+4)){
-        PrintAndLog("Error: Maximum number of blocks is 47 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; 
-    }
-    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));          
-            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);
-            } else {
-                PrintAndLog("Command execute timeout");
-            }
-            break;
-        }
-        return 0;
+       
+       uint8_t blockNo = -1;
+       bool chinese_card = FALSE;
+       uint8_t bldata[16] = {0x00};
+       UsbCommand resp;
+
+       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 ){
+               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  || strchr(Cmd,'W') != 0 ) {
+               chinese_card = TRUE; 
+       }
+       
+       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);
+                       } else {
+                               PrintAndLog("Command execute timeout");
+                       }
+       }
+       return 0;
 }
 
 //------------------------------------
 }
 
 //------------------------------------
@@ -1132,28 +716,26 @@ int CmdHF14AMfUCWrBl(const char *Cmd){
 //------------------------------------
 static command_t CommandTable[] =
 {
 //------------------------------------
 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"},
-    {NULL, NULL, 0, NULL}
+       {"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"},
+       //{"testdes", CmdTestDES ,        1, "Test DES"},
+       {NULL, NULL, 0, NULL}
 };
 
 int CmdHFMFUltra(const char *Cmd){
 };
 
 int CmdHFMFUltra(const char *Cmd){
-    // flush
-    WaitForResponseTimeout(CMD_ACK,NULL,100);
-    CmdsParse(CommandTable, Cmd);
-    return 0;
+       WaitForResponseTimeout(CMD_ACK,NULL,100);
+       CmdsParse(CommandTable, Cmd);
+       return 0;
 }
 
 int CmdHelp(const char *Cmd){
 }
 
 int CmdHelp(const char *Cmd){
-    CmdsHelp(CommandTable);
-    return 0;
+       CmdsHelp(CommandTable);
+       return 0;
 }
\ No newline at end of file
 }
\ No newline at end of file
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