Fixed error in hash1 (from loclass), now it possibly calculates the KSel correctly...

[proxmark3-svn] / client / cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 7156b1188809ab9c492ac52a2efb4d2e32e270e6..5cfcc46b0597408aff2022775e3fa4c67d7680e1 100644 (file)
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -303,7 +303,7 @@ int CmdHFiClassSnoop(const char *Cmd)
   SendCommand(&c);
   return 0;
 }
-
+#define NUM_CSNS 15
 int CmdHFiClassSim(const char *Cmd)
 {
   uint8_t simType = 0;
@@ -340,10 +340,10 @@ 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] = {
+               /*uint8_t csns[8 * NUM_CSNS] = {
                         0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 ,
                         0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 ,
                         0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 ,
@@ -352,8 +352,26 @@ int CmdHFiClassSim(const char *Cmd)
                         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 +380,9 @@ 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 +396,7 @@ 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...
@@ -495,15 +513,27 @@ int CmdHFiClassReader_Dump(const char *Cmd)
 
   }
 
+  UsbCommand resp;
+  uint8_t key_sel[8] = {0};
+  uint8_t key_sel_p[8] = { 0 };
+
+  //HACK -- Below is for testing without access to a tag
+  uint8_t xdata[16] = {0x01,0x02,0x03,0x04,0xF7,0xFF,0x12,0xE0, //CSN from http://www.proxmark.org/forum/viewtopic.php?pid=11230#p11230
+                      0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; // Just a random CC. Would be good to add a real testcase here
+  memcpy(resp.d.asBytes,xdata, 16);
+  resp.arg[0] = 2;
+  uint8_t fake_dummy_test = false;
+  //End hack
+
 
   UsbCommand c = {CMD_READER_ICLASS, {0}};
   c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE;
-
-  SendCommand(&c);
+  if(!fake_dummy_test)   
+    SendCommand(&c);
   
-  UsbCommand resp;
 
-  if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
+
+  if (fake_dummy_test || WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
         uint8_t isOK    = resp.arg[0] & 0xff;
         uint8_t * data  = resp.d.asBytes;
 
@@ -520,8 +550,6 @@ int CmdHFiClassReader_Dump(const char *Cmd)
         {
             if(elite)
             {
-                uint8_t key_sel[8] = {0};
-                uint8_t key_sel_p[8] = { 0 };
                 //Get the key index (hash1)
                 uint8_t key_index[8] = {0};
 
@@ -529,6 +557,7 @@ int CmdHFiClassReader_Dump(const char *Cmd)
                 printvar("hash1", key_index,8);
                 for(i = 0; i < 8 ; i++)
                     key_sel[i] = keytable[key_index[i]] & 0xFF;
+                PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
                 printvar("k_sel", key_sel,8);
                 //Permute from iclass format to standard format
                 permutekey_rev(key_sel,key_sel_p);
@@ -545,8 +574,11 @@ int CmdHFiClassReader_Dump(const char *Cmd)
                 used_key = KEY;
 
             }
+
+            PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
             printvar("Used key",used_key,8);
             diversifyKey(CSN,used_key, div_key);
+            PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
             printvar("Div key", div_key, 8);
             printvar("CC_NR:",CCNR,12);
             doMAC(CCNR,12,div_key, MAC);
@@ -554,7 +586,7 @@ int CmdHFiClassReader_Dump(const char *Cmd)
 
             UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
             memcpy(d.d.asBytes, MAC, 4);
-            SendCommand(&d);
+            if(!fake_dummy_test) SendCommand(&d);
 
         }else{
             PrintAndLog("Failed to obtain CC! Aborting");