]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhficlass.c
Applied Holiman's fixes for iclass.c and CSNs
[proxmark3-svn] / client / cmdhficlass.c
index a2844671214ce701a3bf0110cde279bc24e67f3b..370b36e9398c6d0eb8796415a85201d325e97be1 100644 (file)
 #include <sys/stat.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 "common.h"
+#include "../include/common.h"
 #include "util.h"
 #include "cmdmain.h"
 #include "loclass/des.h"
@@ -35,11 +34,11 @@ 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;
+       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)
@@ -56,7 +55,7 @@ int CmdHFiClassList(const char *Cmd)
                return 0;
        }
 
-       uint8_t got[1920];
+       uint8_t got[TRACE_BUFFER_SIZE];
        GetFromBigBuf(got,sizeof(got),0);
        WaitForResponse(CMD_ACK,NULL);
 
@@ -78,7 +77,7 @@ int CmdHFiClassList(const char *Cmd)
        uint32_t EndOfTransmissionTimestamp = 0;
 
 
-       for( i=0; i < 1900;)
+       for( i=0; i < TRACE_BUFFER_SIZE;)
        {
                //First 32 bits contain
                // isResponse (1 bit)
@@ -88,7 +87,7 @@ int CmdHFiClassList(const char *Cmd)
                timestamp = *((uint32_t *)(got+i));
                parityBits = *((uint32_t *)(got+i+4));
                len = got[i+8];
-        frame = (got+i+9);
+               frame = (got+i+9);
                uint32_t next_timestamp = (*((uint32_t *)(got+i+9))) & 0x7fffffff;
 
                tagToReader = timestamp & 0x80000000;
@@ -303,7 +302,7 @@ int CmdHFiClassSnoop(const char *Cmd)
   SendCommand(&c);
   return 0;
 }
-
+#define NUM_CSNS 15
 int CmdHFiClassSim(const char *Cmd)
 {
   uint8_t simType = 0;
@@ -340,20 +339,27 @@ int CmdHFiClassSim(const char *Cmd)
 
        if(simType == 2)
        {
-               UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,63}};
+               UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
                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);
+       uint8_t csns[8*NUM_CSNS] = {
+        0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0,
+        0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 };
+       
+        memcpy(c.d.asBytes, csns, 8*NUM_CSNS);
 
                SendCommand(&c);
                if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
@@ -362,9 +368,9 @@ int CmdHFiClassSim(const char *Cmd)
                }
 
                uint8_t num_mac_responses  = resp.arg[1];
-               PrintAndLog("Mac responses: %d MACs obtained (should be 8)", num_mac_responses);
+               PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses, NUM_CSNS);
 
-               size_t datalen = 8*24;
+               size_t datalen = NUM_CSNS*24;
                /*
                 * Now, time to dump to file. We'll use this format:
                 * <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
@@ -378,7 +384,7 @@ int CmdHFiClassSim(const char *Cmd)
                void* dump = malloc(datalen);
                memset(dump,0,datalen);//<-- Need zeroes for the CC-field
                uint8_t i = 0;
-               for(i = 0 ; i < 8 ; i++)
+               for(i = 0 ; i < NUM_CSNS ; i++)
                {
                        memcpy(dump+i*24, csns+i*8,8); //CSN
                        //8 zero bytes here...
@@ -401,19 +407,30 @@ int CmdHFiClassSim(const char *Cmd)
 
 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);
+    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;
 }
@@ -426,7 +443,7 @@ int CmdHFiClassReader_Replay(const char *Cmd)
   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)) {
@@ -450,11 +467,20 @@ int CmdHFiClassReader_Dump(const char *Cmd)
   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>");
+    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;
   }
 
@@ -463,13 +489,28 @@ int CmdHFiClassReader_Dump(const char *Cmd)
     PrintAndLog("KEY must include 16 HEX symbols");
     return 1;
   }
-    
-  UsbCommand c = {CMD_ICLASS_ISO14443A_GETPUBLIC, {0}};
+
+  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;
@@ -479,16 +520,45 @@ int CmdHFiClassReader_Dump(const char *Cmd)
 
         PrintAndLog("isOk:%02x", isOK);
 
-        if(isOK != 0)
+        if(isOK > 0)
         {
             PrintAndLog("CSN: %s",sprint_hex(CSN,8));
         }
-        if(isOK == 0)
+        if(isOK > 1)
         {
-            //PrintAndLog("CC: %s",sprint_hex(CCNR,8));
-            diversifyKey(CSN,KEY, div_key);
+            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);
-            PrintAndLog("MAC:  %s",sprint_hex(MAC,sizeof(MAC)));
+            printvar("MAC", MAC, 4);
+
             UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
             memcpy(d.d.asBytes, MAC, 4);
             SendCommand(&d);
@@ -540,7 +610,7 @@ int CmdHFiClass_iso14443A_write(const char *Cmd)
         return 1;
   }
   
-  UsbCommand c = {CMD_ICLASS_ISO14443A_GETPUBLIC, {0}};
+  UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}};
   SendCommand(&c);
   UsbCommand resp;
 
@@ -584,14 +654,17 @@ int CmdHFiClass_iso14443A_write(const char *Cmd)
 
 static command_t CommandTable[] = 
 {
-  {"help",     CmdHelp,                        1,      "This help"},
-  {"list",     CmdHFiClassList,        0,      "List iClass history"},
-  {"snoop",    CmdHFiClassSnoop,       0,      "Eavesdrop iClass communication"},
-  {"sim",      CmdHFiClassSim,         0,      "Simulate iClass tag"},
+  {"help",    CmdHelp,        1, "This help"},
+  {"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"},
   {"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"},
+  {"dump",       CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"},
+  {"write",    CmdHFiClass_iso14443A_write,    0,      "Authenticate and Write iClass block"},
   {NULL, NULL, 0, NULL}
 };
 
@@ -604,5 +677,5 @@ int CmdHFiClass(const char *Cmd)
 int CmdHelp(const char *Cmd)
 {
   CmdsHelp(CommandTable);
-  return 0;
+       return 0;
 }
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