Minor formatting change

[proxmark3-svn] / client / cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index aa5a2145f8c04471639cd86e2f6987a3a0ad0b39..47ff2db0f226494888246eef619273e805cda741 100644 (file)
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -1,6 +1,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
 // Copyright (C) 2011 Gerhard de Koning Gans
 //-----------------------------------------------------------------------------
 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
 // Copyright (C) 2011 Gerhard de Koning Gans

+// Copyright (C) 2014 Midnitesnake & Andy Davies & Martin Holst Swende

 //
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
 // at your option, any later version. See the LICENSE.txt file for the text of
 //
 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
 // at your option, any later version. See the LICENSE.txt file for the text of


@@ -12,19 +13,152 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

+#include <sys/stat.h>

 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
 #include "data.h"
 #include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
 #include "data.h"

-//#include "proxusb.h"

 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "cmdhficlass.h"
 #include "proxmark3.h"
 #include "ui.h"
 #include "cmdparser.h"
 #include "cmdhficlass.h"

-#include "common.h"
+#include "../include/common.h"

 #include "util.h"
 #include "util.h"

+#include "cmdmain.h"
+#include "loclass/des.h"
+#include "loclass/cipherutils.h"
+#include "loclass/cipher.h"
+#include "loclass/ikeys.h"
+#include "loclass/elite_crack.h"
+#include "loclass/fileutils.h"

 
 static int CmdHelp(const char *Cmd);
 
 
 static int CmdHelp(const char *Cmd);
 

+int xorbits_8(uint8_t val)
+{
+       uint8_t res = val ^ (val >> 1); //1st pass
+       res = res ^ (res >> 1);                 // 2nd pass
+       res = res ^ (res >> 2);                 // 3rd pass
+       res = res ^ (res >> 4);                         // 4th pass
+       return res & 1;
+}
+

 int CmdHFiClassList(const char *Cmd)
 int CmdHFiClassList(const char *Cmd)

+{
+
+       bool ShowWaitCycles = false;
+       char param = param_getchar(Cmd, 0);
+
+       if (param != 0) {
+               PrintAndLog("List data in trace buffer.");
+               PrintAndLog("Usage:  hf iclass list");
+               PrintAndLog("h - help");
+               PrintAndLog("sample: hf iclass list");
+               return 0;
+       }
+
+       uint8_t got[1920];
+       GetFromBigBuf(got,sizeof(got),0);
+       WaitForResponse(CMD_ACK,NULL);
+
+       PrintAndLog("Recorded Activity");
+       PrintAndLog("");
+       PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
+       PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
+       PrintAndLog("");
+       PrintAndLog("     Start |       End | Src | Data");
+       PrintAndLog("-----------|-----------|-----|--------");
+
+       int i;
+       uint32_t first_timestamp = 0;
+       uint32_t timestamp;
+       bool tagToReader;
+       uint32_t parityBits;
+       uint8_t len;
+       uint8_t *frame;
+       uint32_t EndOfTransmissionTimestamp = 0;
+
+
+       for( i=0; i < 1900;)
+       {
+               //First 32 bits contain
+               // isResponse (1 bit)
+               // timestamp (remaining)
+               //Then paritybits
+               //Then length
+               timestamp = *((uint32_t *)(got+i));
+               parityBits = *((uint32_t *)(got+i+4));
+               len = got[i+8];
+               frame = (got+i+9);
+               uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
+
+               tagToReader = timestamp & 0x80000000;
+               timestamp &= 0x7fffffff;
+
+               if(i==0) {
+                       first_timestamp = timestamp;
+               }
+
+        // Break and stick with current result idf buffer was not completely full
+               if (frame[0] == 0x44 && frame[1] == 0x44 && frame[2] == 0x44 && frame[3] == 0x44) break;
+
+               char line[1000] = "";
+
+               if(len)//We have some data to display
+               {
+                       int j,oddparity;
+
+                       for(j = 0; j < len ; j++)
+                       {
+                               oddparity = 0x01 ^ xorbits_8(frame[j] & 0xFF);
+
+                               if (tagToReader && (oddparity != ((parityBits >> (len - j - 1)) & 0x01))) {
+                                       sprintf(line+(j*4), "%02x!  ", frame[j]);
+                               } else {
+                                       sprintf(line+(j*4), "%02x   ", frame[j]);
+                               }
+                       }
+               }else
+               {
+                       if (ShowWaitCycles) {
+                               sprintf(line, "fdt (Frame Delay Time): %d", (next_timestamp - timestamp));
+                       }
+               }
+
+               char *crc = "";
+
+               if(len > 2)
+               {
+                       uint8_t b1, b2;
+                       if(!tagToReader && len == 4) {
+                               // Rough guess that this is a command from the reader
+                               // For iClass the command byte is not part of the CRC
+                                       ComputeCrc14443(CRC_ICLASS, &frame[1], len-3, &b1, &b2);
+                       }
+                       else {
+                                 // For other data.. CRC might not be applicable (UPDATE commands etc.)
+                               ComputeCrc14443(CRC_ICLASS, frame, len-2, &b1, &b2);
+                       }
+
+                       if (b1 != frame[len-2] || b2 != frame[len-1]) {
+                               crc = (tagToReader & (len < 8)) ? "" : " !crc";
+                       }
+               }
+
+               i += (len + 9);
+               EndOfTransmissionTimestamp = (*((uint32_t *)(got+i))) & 0x7fffffff;
+
+               // Not implemented for iclass on the ARM-side
+               //if (!ShowWaitCycles) i += 9;
+
+               PrintAndLog(" %9d | %9d | %s | %s %s",
+                       (timestamp - first_timestamp),
+                       (EndOfTransmissionTimestamp - first_timestamp),
+                       (len?(tagToReader ? "Tag" : "Rdr"):"   "),
+                       line, crc);
+       }
+       return 0;
+}
+
+int CmdHFiClassListOld(const char *Cmd)

 {
   uint8_t got[1920];
   GetFromBigBuf(got,sizeof(got),0);
 {
   uint8_t got[1920];
   GetFromBigBuf(got,sizeof(got),0);


@@ -50,7 +184,9 @@ int CmdHFiClassList(const char *Cmd)
       isResponse = 0;
     }
 
       isResponse = 0;
     }
 

+

     int metric = 0;
     int metric = 0;

+

     int parityBits = *((uint32_t *)(got+i+4));
     // 4 bytes of additional information...
     // maximum of 32 additional parity bit information
     int parityBits = *((uint32_t *)(got+i+4));
     // 4 bytes of additional information...
     // maximum of 32 additional parity bit information


@@ -160,11 +296,6 @@ int CmdHFiClassList(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

-/*void iso14a_set_timeout(uint32_t timeout) {
-       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_SET_TIMEOUT, 0, timeout}};
-       SendCommand(&c);
-}*/
-

 int CmdHFiClassSnoop(const char *Cmd)
 {
   UsbCommand c = {CMD_SNOOP_ICLASS};
 int CmdHFiClassSnoop(const char *Cmd)
 {
   UsbCommand c = {CMD_SNOOP_ICLASS};


@@ -177,49 +308,122 @@ int CmdHFiClassSim(const char *Cmd)
   uint8_t simType = 0;
   uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
 
   uint8_t simType = 0;
   uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
 

-  if (strlen(Cmd)<2) {
-       PrintAndLog("Usage:  hf iclass sim    <sim type> <CSN (16 hex symbols)>");
+  if (strlen(Cmd)<1) {
+       PrintAndLog("Usage:  hf iclass sim [0 <CSN>] | x");
+       PrintAndLog("        options");
+       PrintAndLog("                0 <CSN> simulate the given CSN");
+       PrintAndLog("                1       simulate default CSN");
+       PrintAndLog("                2       iterate CSNs, gather MACs");

        PrintAndLog("        sample: hf iclass sim 0 031FEC8AF7FF12E0");
        PrintAndLog("        sample: hf iclass sim 0 031FEC8AF7FF12E0");

+       PrintAndLog("        sample: hf iclass sim 2");

        return 0;
   }    
 
   simType = param_get8(Cmd, 0);
        return 0;
   }    
 
   simType = param_get8(Cmd, 0);

-  if (param_gethex(Cmd, 1, CSN, 16)) {
-       PrintAndLog("A CSN should consist of 16 HEX symbols");
-       return 1;
-  }
-  PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));

 
 

-  UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType}};
-  memcpy(c.d.asBytes, CSN, 8);
-  SendCommand(&c);
+  if(simType == 0)
+  {
+         if (param_gethex(Cmd, 1, CSN, 16)) {
+                 PrintAndLog("A CSN should consist of 16 HEX symbols");
+                 return 1;
+         }
+         PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));

 
 

-  /*UsbCommand * resp = WaitForResponseTimeout(CMD_ACK, 1500);
-  if (resp != NULL) {
-       uint8_t                isOK  = resp->arg[0] & 0xff;
-       PrintAndLog("isOk:%02x", isOK);
-  } else {
-       PrintAndLog("Command execute timeout");
-  }*/
+  }
+  if(simType > 2)
+  {
+         PrintAndLog("Undefined simptype %d", simType);
+         return 1;
+  }
+  uint8_t numberOfCSNs=0;
+
+       if(simType == 2)
+       {
+               UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,63}};
+               UsbCommand resp = {0};
+
+               uint8_t csns[64] = {
+                        0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 ,
+                        0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 ,
+                        0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 ,
+                        0x17,0x12,0x01,0xfd,0xf7,0xff,0x12,0xe0 ,
+                        0xcd,0x56,0x01,0x7c,0x6f,0xff,0x12,0xe0 ,
+                        0x4b,0x5e,0x0b,0x72,0xef,0xff,0x12,0xe0 ,
+                        0x00,0x73,0xd8,0x75,0x58,0xff,0x12,0xe0 ,
+                        0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 };
+
+               memcpy(c.d.asBytes, csns, 64);
+
+               SendCommand(&c);
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
+                       PrintAndLog("Command timed out");
+                       return 0;
+               }
+
+               uint8_t num_mac_responses  = resp.arg[1];
+               PrintAndLog("Mac responses: %d MACs obtained (should be 8)", num_mac_responses);
+
+               size_t datalen = 8*24;
+               /*
+                * Now, time to dump to file. We'll use this format:
+                * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
+                * So, it should wind up as
+                * 8 * 24 bytes.
+                *
+                * The returndata from the pm3 is on the following format
+                * <4 byte NR><4 byte MAC>
+                * CC are all zeroes, CSN is the same as was sent in
+                **/
+               void* dump = malloc(datalen);
+               memset(dump,0,datalen);//<-- Need zeroes for the CC-field
+               uint8_t i = 0;
+               for(i = 0 ; i < 8 ; i++)
+               {
+                       memcpy(dump+i*24, csns+i*8,8); //CSN
+                       //8 zero bytes here...
+                       //Then comes NR_MAC (eight bytes from the response)
+                       memcpy(dump+i*24+16,resp.d.asBytes+i*8,8);
+
+               }
+               /** Now, save to dumpfile **/
+               saveFile("iclass_mac_attack", "bin", dump,datalen);
+               free(dump);
+       }else
+       {
+               UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
+               memcpy(c.d.asBytes, CSN, 8);
+               SendCommand(&c);
+       }

 
   return 0;
 }
 
 int CmdHFiClassReader(const char *Cmd)
 {
 
   return 0;
 }
 
 int CmdHFiClassReader(const char *Cmd)
 {

-  uint8_t readerType = 0;
-
-  if (strlen(Cmd)<1) {
-       PrintAndLog("Usage:  hf iclass reader    <reader type>");
-       PrintAndLog("        sample: hf iclass reader 0");
-       return 0;
-  }    
-
-  readerType = param_get8(Cmd, 0);
-  PrintAndLog("--readertype:%02x", readerType);
-
-  UsbCommand c = {CMD_READER_ICLASS, {readerType}};
+  UsbCommand c = {CMD_READER_ICLASS, {0}};

   SendCommand(&c);
   SendCommand(&c);

+    UsbCommand resp;
+  while(!ukbhit()){
+      if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+            uint8_t isOK    = resp.arg[0] & 0xff;
+            uint8_t * data  = resp.d.asBytes;
+
+            PrintAndLog("isOk:%02x", isOK);
+
+            if(isOK > 0)
+            {
+                PrintAndLog("CSN: %s",sprint_hex(data,8));
+            }
+            if(isOK >= 1)
+            {
+                PrintAndLog("CC: %s",sprint_hex(data+8,8));
+            }else{
+                PrintAndLog("No CC obtained");
+            }
+        } else {
+            PrintAndLog("Command execute timeout");
+        }
+    }

 
   return 0;
 }
 
   return 0;
 }


@@ -232,7 +436,7 @@ int CmdHFiClassReader_Replay(const char *Cmd)
   if (strlen(Cmd)<1) {
     PrintAndLog("Usage:  hf iclass replay <MAC>");
     PrintAndLog("        sample: hf iclass replay 00112233");
   if (strlen(Cmd)<1) {
     PrintAndLog("Usage:  hf iclass replay <MAC>");
     PrintAndLog("        sample: hf iclass replay 00112233");

-    return 0;
+       return 0;

   }
 
   if (param_gethex(Cmd, 0, MAC, 8)) {
   }
 
   if (param_gethex(Cmd, 0, MAC, 8)) {


@@ -247,6 +451,199 @@ int CmdHFiClassReader_Replay(const char *Cmd)
   return 0;
 }
 
   return 0;
 }
 

+int CmdHFiClassReader_Dump(const char *Cmd)
+{
+  uint8_t readerType = 0;
+  uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+  uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  //uint8_t CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t keytable[128] = {0};
+  int elite = 0;
+  uint8_t *used_key;
+  int i;
+  if (strlen(Cmd)<1) 
+  {
+    PrintAndLog("Usage:  hf iclass dump <Key> [e]");
+    PrintAndLog("        Key    - A 16 byte master key");
+    PrintAndLog("        e      - If 'e' is specified, the key is interpreted as the 16 byte");
+    PrintAndLog("                 Custom Key (KCus), which can be obtained via reader-attack");
+    PrintAndLog("                 See 'hf iclass sim 2'. This key should be on iclass-format");
+    PrintAndLog("        sample: hf iclass dump 0011223344556677");
+
+
+    return 0;
+  }
+
+  if (param_gethex(Cmd, 0, KEY, 16)) 
+  {
+    PrintAndLog("KEY must include 16 HEX symbols");
+    return 1;
+  }
+
+  if (param_getchar(Cmd, 1) == 'e')
+  {
+    PrintAndLog("Elite switch on");
+    elite = 1;
+
+    //calc h2
+    hash2(KEY, keytable);
+    printarr_human_readable("keytable", keytable, 128);
+
+  }
+
+
+  UsbCommand c = {CMD_READER_ICLASS, {0}};
+  c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE;
+
+  SendCommand(&c);
+  
+  UsbCommand resp;
+  uint8_t key_sel[8] = {0x00};
+  uint8_t key_sel_p[8] = {0x00};
+                               
+  if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+        uint8_t isOK    = resp.arg[0] & 0xff;
+        uint8_t * data  = resp.d.asBytes;
+
+        memcpy(CSN,data,8);
+        memcpy(CCNR,data+8,8);
+
+        PrintAndLog("isOk:%02x", isOK);
+
+        if(isOK > 0)
+        {
+            PrintAndLog("CSN: %s",sprint_hex(CSN,8));
+        }
+        if(isOK > 1)
+        {
+            if(elite)
+            {
+
+                //Get the key index (hash1)
+                uint8_t key_index[8] = {0};
+
+                hash1(CSN, key_index);
+                printvar("hash1", key_index,8);
+                for(i = 0; i < 8 ; i++)
+                    key_sel[i] = keytable[key_index[i]] & 0xFF;
+                printvar("k_sel", key_sel,8);
+                //Permute from iclass format to standard format
+                permutekey_rev(key_sel,key_sel_p);
+                used_key = key_sel_p;
+            }else{
+                //Perhaps this should also be permuted to std format?
+                // Something like the code below? I have no std system
+                // to test this with /Martin
+
+                //uint8_t key_sel_p[8] = { 0 };
+                //permutekey_rev(KEY,key_sel_p);
+                //used_key = key_sel_p;
+
+                used_key = KEY;
+
+            }
+            printvar("Used key",used_key,8);
+            diversifyKey(CSN,used_key, div_key);
+            printvar("Div key", div_key, 8);
+            printvar("CC_NR:",CCNR,12);
+            doMAC(CCNR,12,div_key, MAC);
+            printvar("MAC", MAC, 4);
+
+            UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
+            memcpy(d.d.asBytes, MAC, 4);
+            SendCommand(&d);
+
+        }else{
+            PrintAndLog("Failed to obtain CC! Aborting");
+        }
+    } else {
+        PrintAndLog("Command execute timeout");
+    }
+
+  return 0;
+}
+
+int CmdHFiClass_iso14443A_write(const char *Cmd)
+{
+  uint8_t readerType = 0;
+  uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+  uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+  uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+  uint8_t blockNo=0;
+  uint8_t bldata[8]={0};
+
+  if (strlen(Cmd)<3) 
+  {
+    PrintAndLog("Usage:  hf iclass write <Key> <Block> <Data>");
+    PrintAndLog("        sample: hf iclass write 0011223344556677 10 AAAAAAAAAAAAAAAA");
+    return 0;
+  }
+
+  if (param_gethex(Cmd, 0, KEY, 16)) 
+  {
+    PrintAndLog("KEY must include 16 HEX symbols");
+    return 1;
+  }
+  
+  blockNo = param_get8(Cmd, 1);
+  if (blockNo>32)
+  {
+        PrintAndLog("Error: Maximum number of blocks is 32 for iClass 2K Cards!");
+        return 1;
+  }
+  if (param_gethex(Cmd, 2, bldata, 8)) 
+  {
+        PrintAndLog("Block data must include 8 HEX symbols");
+        return 1;
+  }
+  
+  UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}};
+  SendCommand(&c);
+  UsbCommand resp;
+
+  if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+    uint8_t isOK    = resp.arg[0] & 0xff;
+    uint8_t * data  = resp.d.asBytes;
+    
+    memcpy(CSN,data,8);
+    memcpy(CCNR,data+8,8);
+    PrintAndLog("DEBUG: %s",sprint_hex(CSN,8));
+    PrintAndLog("DEBUG: %s",sprint_hex(CCNR,8));
+       PrintAndLog("isOk:%02x", isOK);
+  } else {
+       PrintAndLog("Command execute timeout");
+  }
+
+  diversifyKey(CSN,KEY, div_key);
+
+  PrintAndLog("Div Key: %s",sprint_hex(div_key,8));
+  doMAC(CCNR, 12,div_key, MAC);
+
+  UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}};
+  memcpy(c2.d.asBytes, bldata, 8);
+  memcpy(c2.d.asBytes+8, MAC, 4);
+  SendCommand(&c2);
+
+  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;
+}
+

 
 static command_t CommandTable[] = 
 {
 
 static command_t CommandTable[] = 
 {


@@ -254,8 +651,13 @@ static command_t CommandTable[] =
   {"list",    CmdHFiClassList,   0, "List iClass history"},
   {"snoop",   CmdHFiClassSnoop,  0, "Eavesdrop iClass communication"},
   {"sim",     CmdHFiClassSim,    0, "Simulate iClass tag"},
   {"list",    CmdHFiClassList,   0, "List iClass history"},
   {"snoop",   CmdHFiClassSnoop,  0, "Eavesdrop iClass communication"},
   {"sim",     CmdHFiClassSim,    0, "Simulate iClass tag"},

-  {"reader",  CmdHFiClassReader, 0, "Read an iClass tag"},
+  {"reader",CmdHFiClassReader, 0,      "Read an iClass tag"},
+  {"replay",CmdHFiClassReader_Replay,  0,      "Read an iClass tag via Reply Attack"},
+  {"dump",     CmdHFiClassReader_Dump, 0,              "Authenticate and Dump iClass tag"},
+  {"write",    CmdHFiClass_iso14443A_write,    0,      "Authenticate and Write iClass block"},

   {"replay",  CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"},
   {"replay",  CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"},

+  {"dump",       CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"},
+  {"write",    CmdHFiClass_iso14443A_write,    0,      "Authenticate and Write iClass block"},

   {NULL, NULL, 0, NULL}
 };
 
   {NULL, NULL, 0, NULL}
 };
 


@@ -268,5 +670,5 @@ int CmdHFiClass(const char *Cmd)
 int CmdHelp(const char *Cmd)
 {
   CmdsHelp(CommandTable);
 int CmdHelp(const char *Cmd)
 {
   CmdsHelp(CommandTable);

-  return 0;
+       return 0;

 }
 }