[proxmark3-svn] / client / cmdhficlass.c

//-----------------------------------------------------------------------------
// 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
// the license.
//-----------------------------------------------------------------------------
// High frequency iClass commands
//-----------------------------------------------------------------------------

#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 "proxusb.h"
#include "proxmark3.h"
#include "ui.h"
#include "cmdparser.h"
#include "cmdhficlass.h"
#include "common.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);

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)
{
	PrintAndLog("Deprecated command, use 'hf list iclass' instead");
	return 0;
}

int CmdHFiClassSnoop(const char *Cmd)
{
  UsbCommand c = {CMD_SNOOP_ICLASS};
  SendCommand(&c);
  return 0;
}
#define NUM_CSNS 15
int CmdHFiClassSim(const char *Cmd)
{
  uint8_t simType = 0;
  uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};

  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 2");
	return 0;
  }	

  simType = param_get8(Cmd, 0);

  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));

  }
  if(simType > 2)
  {
	  PrintAndLog("Undefined simptype %d", simType);
	  return 1;
  }
  uint8_t numberOfCSNs=0;

	if(simType == 2)
	{
		UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
		UsbCommand resp = {0};

		/*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 ,
			 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 };
*/
      
       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)) {
			PrintAndLog("Command timed out");
			return 0;
		}

		uint8_t num_mac_responses  = resp.arg[1];
		PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS);

		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>....
		 * 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 < NUM_CSNS ; 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)
{
  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){
                //Aborted
                PrintAndLog("Quitting...");
                return 0;
            }
            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;
}

int CmdHFiClassReader_Replay(const char *Cmd)
{
  uint8_t readerType = 0;
  uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};

  if (strlen(Cmd)<1) {
    PrintAndLog("Usage:  hf iclass replay <MAC>");
    PrintAndLog("        sample: hf iclass replay 00112233");
    return 0;
  }

  if (param_gethex(Cmd, 0, MAC, 8)) {
    PrintAndLog("MAC must include 8 HEX symbols");
    return 1;
  }

  UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
  memcpy(c.d.asBytes, MAC, 4);
  SendCommand(&c);

  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 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 fake_dummy_test = false;
  if(fake_dummy_test)
  {
    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;    
  }
  
  //End hack


  UsbCommand c = {CMD_READER_ICLASS, {0}};
  c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC;
  if(!fake_dummy_test)   
    SendCommand(&c);
  

  if (fake_dummy_test || 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;
                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);
                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;

            }

            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);
            printvar("MAC", MAC, 4);

            UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
            memcpy(d.d.asBytes, MAC, 4);
            if(!fake_dummy_test) 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;
}
int CmdHFiClass_loclass(const char *Cmd)
{
	char opt = param_getchar(Cmd, 0);

	if (strlen(Cmd)<1 || opt == 'h') {
		PrintAndLog("Usage: hf iclass loclass [options]");
		PrintAndLog("Options:");
		PrintAndLog("h             Show this help");
		PrintAndLog("t             Perform self-test");
		PrintAndLog("f <filename>  Bruteforce iclass dumpfile");
		PrintAndLog("                   An iclass dumpfile is assumed to consist of an arbitrary number of");
		PrintAndLog("                   malicious CSNs, and their protocol responses");
		PrintAndLog("                   The the binary format of the file is expected to be as follows: ");
		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
		PrintAndLog("                   <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
		PrintAndLog("                  ... totalling N*24 bytes");
		return 0;
	}
	char fileName[255] = {0};
	if(opt == 'f')
	{
			if(param_getstr(Cmd, 1, fileName) > 0)
			{
				return bruteforceFileNoKeys(fileName);
			}else
			{
				PrintAndLog("You must specify a filename");
			}
	}
	else if(opt == 't')
	{
		int errors = testCipherUtils();
		errors += testMAC();
		errors += doKeyTests(0);
		errors += testElite();
		if(errors)
		{
			prnlog("OBS! There were errors!!!");
		}
		return errors;
	}

	return 0;
}

static command_t CommandTable[] = 
{
	{"help",	CmdHelp,			1,	"This help"},
	{"list",	CmdHFiClassList,	0,	"[Deprecated] 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"},
	{"loclass",	CmdHFiClass_loclass,	1,	"Use loclass to perform bruteforce of reader attack dump"},
	{NULL, NULL, 0, NULL}
};

int CmdHFiClass(const char *Cmd)
{
  CmdsParse(CommandTable, Cmd);
  return 0;
}

int CmdHelp(const char *Cmd)
{
  CmdsHelp(CommandTable);
  return 0;
}
Commit	Line	Data
cee5a30d	1	//-----------------------------------------------------------------------------
	2	// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>, Hagen Fritsch
	3	// Copyright (C) 2011 Gerhard de Koning Gans
26c0d833	4	// Copyright (C) 2014 Midnitesnake & Andy Davies & Martin Holst Swende
cee5a30d	5	//
	6	// This code is licensed to you under the terms of the GNU GPL, version 2 or,
	7	// at your option, any later version. See the LICENSE.txt file for the text of
	8	// the license.
	9	//-----------------------------------------------------------------------------
	10	// High frequency iClass commands
	11	//-----------------------------------------------------------------------------
	12
	13	#include <stdio.h>
	14	#include <stdlib.h>
	15	#include <string.h>
9f6e9d15	16	#include <sys/stat.h>
cee5a30d	17	#include "iso14443crc.h" // Can also be used for iClass, using 0xE012 as CRC-type
cee5a30d	18	#include "data.h"
28fdb04f	19	//#include "proxusb.h"
902cb3c0	20	#include "proxmark3.h"
cee5a30d	21	#include "ui.h"
	22	#include "cmdparser.h"
	23	#include "cmdhficlass.h"
	24	#include "common.h"
14006804	25	#include "util.h"
17cba269	26	#include "cmdmain.h"
a66fca86 AD	27	#include "loclass/des.h"
	28	#include "loclass/cipherutils.h"
	29	#include "loclass/cipher.h"
	30	#include "loclass/ikeys.h"
3ad48540 MHS	31	#include "loclass/elite_crack.h"
3ad48540 MHS	32	#include "loclass/fileutils.h"
cee5a30d	33
	34	static int CmdHelp(const char *Cmd);
	35
17cba269 MHS	36	int xorbits_8(uint8_t val)
17cba269 MHS	37	{
3ad48540 MHS	38	uint8_t res = val ^ (val >> 1); //1st pass
	39	res = res ^ (res >> 1); // 2nd pass
	40	res = res ^ (res >> 2); // 3rd pass
	41	res = res ^ (res >> 4); // 4th pass
	42	return res & 1;
17cba269 MHS	43	}
17cba269 MHS	44
cee5a30d	45	int CmdHFiClassList(const char *Cmd)
17cba269	46	{
4c3de57a	47	PrintAndLog("Deprecated command, use 'hf list iclass' instead");
17cba269 MHS	48	return 0;
	49	}
	50
cee5a30d	51	int CmdHFiClassSnoop(const char *Cmd)
	52	{
	53	UsbCommand c = {CMD_SNOOP_ICLASS};
	54	SendCommand(&c);
	55	return 0;
	56	}
6116c796	57	#define NUM_CSNS 15
1e262141	58	int CmdHFiClassSim(const char *Cmd)
	59	{
	60	uint8_t simType = 0;
	61	uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
	62
17cba269 MHS	63	if (strlen(Cmd)<1) {
	64	PrintAndLog("Usage: hf iclass sim [0 <CSN>] \| x");
	65	PrintAndLog(" options");
	66	PrintAndLog(" 0 <CSN> simulate the given CSN");
	67	PrintAndLog(" 1 simulate default CSN");
	68	PrintAndLog(" 2 iterate CSNs, gather MACs");
1e262141	69	PrintAndLog(" sample: hf iclass sim 0 031FEC8AF7FF12E0");
17cba269	70	PrintAndLog(" sample: hf iclass sim 2");
1e262141	71	return 0;
	72	}
	73
	74	simType = param_get8(Cmd, 0);
17cba269 MHS	75
	76	if(simType == 0)
	77	{
	78	if (param_gethex(Cmd, 1, CSN, 16)) {
	79	PrintAndLog("A CSN should consist of 16 HEX symbols");
	80	return 1;
	81	}
	82	PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
	83
	84	}
77abe781	85	if(simType > 2)
17cba269 MHS	86	{
	87	PrintAndLog("Undefined simptype %d", simType);
	88	return 1;
1e262141	89	}
17cba269	90	uint8_t numberOfCSNs=0;
1e262141	91
9f6e9d15 MHS	92	if(simType == 2)
9f6e9d15 MHS	93	{
6116c796	94	UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
9f6e9d15	95	UsbCommand resp = {0};
17cba269	96
6116c796	97	/uint8_t csns[8 NUM_CSNS] = {
77abe781 MHS	98	0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 ,
	99	0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 ,
	100	0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 ,
	101	0x17,0x12,0x01,0xfd,0xf7,0xff,0x12,0xe0 ,
	102	0xcd,0x56,0x01,0x7c,0x6f,0xff,0x12,0xe0 ,
	103	0x4b,0x5e,0x0b,0x72,0xef,0xff,0x12,0xe0 ,
	104	0x00,0x73,0xd8,0x75,0x58,0xff,0x12,0xe0 ,
	105	0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 };
6116c796 MHS	106	*/
	107
	108	uint8_t csns[8*NUM_CSNS] = {
	109	0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
	110	0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
	111	0x00, 0x09, 0x0D, 0x05, 0xF7, 0xFF, 0x12, 0xE0,
	112	0x00, 0x0A, 0x0C, 0x06, 0xF7, 0xFF, 0x12, 0xE0,
	113	0x00, 0x0F, 0x0B, 0x03, 0xF7, 0xFF, 0x12, 0xE0,
	114	0x00, 0x08, 0x0A, 0x0C, 0xF7, 0xFF, 0x12, 0xE0,
	115	0x00, 0x0D, 0x09, 0x09, 0xF7, 0xFF, 0x12, 0xE0,
	116	0x00, 0x0E, 0x08, 0x0A, 0xF7, 0xFF, 0x12, 0xE0,
	117	0x00, 0x03, 0x07, 0x17, 0xF7, 0xFF, 0x12, 0xE0,
	118	0x00, 0x3C, 0x06, 0xE0, 0xF7, 0xFF, 0x12, 0xE0,
	119	0x00, 0x01, 0x05, 0x1D, 0xF7, 0xFF, 0x12, 0xE0,
	120	0x00, 0x02, 0x04, 0x1E, 0xF7, 0xFF, 0x12, 0xE0,
	121	0x00, 0x07, 0x03, 0x1B, 0xF7, 0xFF, 0x12, 0xE0,
	122	0x00, 0x00, 0x02, 0x24, 0xF7, 0xFF, 0x12, 0xE0,
	123	0x00, 0x05, 0x01, 0x21, 0xF7, 0xFF, 0x12, 0xE0 };
	124
	125	memcpy(c.d.asBytes, csns, 8*NUM_CSNS);
9f6e9d15 MHS	126
	127	SendCommand(&c);
	128	if (!WaitForResponseTimeout(CMD_ACK, &resp, -1)) {
	129	PrintAndLog("Command timed out");
	130	return 0;
	131	}
1e262141	132
77abe781	133	uint8_t num_mac_responses = resp.arg[1];
6116c796	134	PrintAndLog("Mac responses: %d MACs obtained (should be %d)", num_mac_responses,NUM_CSNS);
9f6e9d15	135
6116c796	136	size_t datalen = NUM_CSNS*24;
9f6e9d15 MHS	137	/*
9f6e9d15 MHS	138	* Now, time to dump to file. We'll use this format:
77abe781	139	* <8-byte CSN><8-byte CC><4 byte NR><4 byte MAC>....
9f6e9d15	140	* So, it should wind up as
77abe781 MHS	141	* 8 * 24 bytes.
	142	*
	143	* The returndata from the pm3 is on the following format
	144	* <4 byte NR><4 byte MAC>
	145	* CC are all zeroes, CSN is the same as was sent in
9f6e9d15	146	**/
77abe781 MHS	147	void* dump = malloc(datalen);
77abe781 MHS	148	memset(dump,0,datalen);//<-- Need zeroes for the CC-field
9f6e9d15	149	uint8_t i = 0;
6116c796	150	for(i = 0 ; i < NUM_CSNS ; i++)
9f6e9d15	151	{
77abe781 MHS	152	memcpy(dump+i24, csns+i8,8); //CSN
	153	//8 zero bytes here...
	154	//Then comes NR_MAC (eight bytes from the response)
	155	memcpy(dump+i24+16,resp.d.asBytes+i8,8);
1e262141	156
9f6e9d15 MHS	157	}
9f6e9d15 MHS	158	/ Now, save to dumpfile /
77abe781 MHS	159	saveFile("iclass_mac_attack", "bin", dump,datalen);
77abe781 MHS	160	free(dump);
9f6e9d15 MHS	161	}else
	162	{
	163	UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,numberOfCSNs}};
	164	memcpy(c.d.asBytes, CSN, 8);
	165	SendCommand(&c);
	166	}
1e262141	167
1e262141	168	return 0;
	169	}
	170
	171	int CmdHFiClassReader(const char *Cmd)
	172	{
aa41c605	173	UsbCommand c = {CMD_READER_ICLASS, {0}};
1e262141	174	SendCommand(&c);
aa41c605 MHS	175	UsbCommand resp;
	176	while(!ukbhit()){
	177	if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
	178	uint8_t isOK = resp.arg[0] & 0xff;
	179	uint8_t * data = resp.d.asBytes;
	180
	181	PrintAndLog("isOk:%02x", isOK);
2e9d4b3f MHS	182	if( isOK == 0){
	183	//Aborted
	184	PrintAndLog("Quitting...");
	185	return 0;
	186	}
aa41c605 MHS	187	if(isOK > 0)
	188	{
	189	PrintAndLog("CSN: %s",sprint_hex(data,8));
	190	}
	191	if(isOK >= 1)
	192	{
	193	PrintAndLog("CC: %s",sprint_hex(data+8,8));
	194	}else{
	195	PrintAndLog("No CC obtained");
	196	}
	197	} else {
	198	PrintAndLog("Command execute timeout");
	199	}
	200	}
1e262141	201
c3963755	202	return 0;
	203	}
	204
	205	int CmdHFiClassReader_Replay(const char *Cmd)
	206	{
	207	uint8_t readerType = 0;
	208	uint8_t MAC[4]={0x00, 0x00, 0x00, 0x00};
	209
	210	if (strlen(Cmd)<1) {
	211	PrintAndLog("Usage: hf iclass replay <MAC>");
	212	PrintAndLog(" sample: hf iclass replay 00112233");
	213	return 0;
	214	}
	215
	216	if (param_gethex(Cmd, 0, MAC, 8)) {
	217	PrintAndLog("MAC must include 8 HEX symbols");
	218	return 1;
	219	}
	220
	221	UsbCommand c = {CMD_READER_ICLASS_REPLAY, {readerType}};
	222	memcpy(c.d.asBytes, MAC, 4);
	223	SendCommand(&c);
1e262141	224
	225	return 0;
	226	}
	227
a66fca86 AD	228	int CmdHFiClassReader_Dump(const char *Cmd)
	229	{
	230	uint8_t readerType = 0;
	231	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
	232	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
	233	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
	234	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
fecd8202	235	//uint8_t CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
a66fca86	236	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
9b82de75 MHS	237	uint8_t keytable[128] = {0};
	238	int elite = 0;
	239	uint8_t *used_key;
	240	int i;
fecd8202	241	if (strlen(Cmd)<1)
fecd8202	242	{
9b82de75 MHS	243	PrintAndLog("Usage: hf iclass dump <Key> [e]");
	244	PrintAndLog(" Key - A 16 byte master key");
	245	PrintAndLog(" e - If 'e' is specified, the key is interpreted as the 16 byte");
	246	PrintAndLog(" Custom Key (KCus), which can be obtained via reader-attack");
	247	PrintAndLog(" See 'hf iclass sim 2'. This key should be on iclass-format");
fecd8202	248	PrintAndLog(" sample: hf iclass dump 0011223344556677");
9b82de75 MHS	249
9b82de75 MHS	250
a66fca86 AD	251	return 0;
	252	}
	253
fecd8202	254	if (param_gethex(Cmd, 0, KEY, 16))
fecd8202	255	{
a66fca86 AD	256	PrintAndLog("KEY must include 16 HEX symbols");
	257	return 1;
	258	}
9b82de75 MHS	259
	260	if (param_getchar(Cmd, 1) == 'e')
	261	{
	262	PrintAndLog("Elite switch on");
	263	elite = 1;
	264
	265	//calc h2
	266	hash2(KEY, keytable);
9e28ee9f	267	printarr_human_readable("keytable", keytable, 128);
9b82de75 MHS	268
	269	}
	270
0eea34a2 MHS	271	UsbCommand resp;
	272	uint8_t key_sel[8] = {0};
	273	uint8_t key_sel_p[8] = { 0 };
	274
	275	//HACK -- Below is for testing without access to a tag
0eea34a2	276	uint8_t fake_dummy_test = false;
8e976839 MHS	277	if(fake_dummy_test)
	278	{
	279	uint8_t xdata[16] = {0x01,0x02,0x03,0x04,0xF7,0xFF,0x12,0xE0, //CSN from http://www.proxmark.org/forum/viewtopic.php?pid=11230#p11230
	280	0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}; // Just a random CC. Would be good to add a real testcase here
	281	memcpy(resp.d.asBytes,xdata, 16);
	282	resp.arg[0] = 2;
	283	}
	284
0eea34a2 MHS	285	//End hack
0eea34a2 MHS	286
9b82de75	287
aa41c605	288	UsbCommand c = {CMD_READER_ICLASS, {0}};
c8dd9b09	289	c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE\| FLAG_ICLASS_READER_GET_CC;
0eea34a2 MHS	290	if(!fake_dummy_test)
0eea34a2 MHS	291	SendCommand(&c);
fecd8202	292
26c0d833	293
0eea34a2 MHS	294
0eea34a2 MHS	295	if (fake_dummy_test \|\| WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
26c0d833 MHS	296	uint8_t isOK = resp.arg[0] & 0xff;
	297	uint8_t * data = resp.d.asBytes;
	298
26c0d833 MHS	299	memcpy(CSN,data,8);
26c0d833 MHS	300	memcpy(CCNR,data+8,8);
3ad48540	301
26c0d833	302	PrintAndLog("isOk:%02x", isOK);
a66fca86	303
aa41c605	304	if(isOK > 0)
26c0d833 MHS	305	{
	306	PrintAndLog("CSN: %s",sprint_hex(CSN,8));
	307	}
9b82de75	308	if(isOK > 1)
26c0d833	309	{
9b82de75 MHS	310	if(elite)
9b82de75 MHS	311	{
9b82de75 MHS	312	//Get the key index (hash1)
	313	uint8_t key_index[8] = {0};
	314
	315	hash1(CSN, key_index);
	316	printvar("hash1", key_index,8);
	317	for(i = 0; i < 8 ; i++)
	318	key_sel[i] = keytable[key_index[i]] & 0xFF;
0eea34a2	319	PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
9b82de75 MHS	320	printvar("k_sel", key_sel,8);
	321	//Permute from iclass format to standard format
	322	permutekey_rev(key_sel,key_sel_p);
	323	used_key = key_sel_p;
	324	}else{
9e28ee9f MHS	325	//Perhaps this should also be permuted to std format?
	326	// Something like the code below? I have no std system
	327	// to test this with /Martin
	328
	329	//uint8_t key_sel_p[8] = { 0 };
	330	//permutekey_rev(KEY,key_sel_p);
	331	//used_key = key_sel_p;
	332
9b82de75 MHS	333	used_key = KEY;
	334
	335	}
0eea34a2 MHS	336
0eea34a2 MHS	337	PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
9b82de75 MHS	338	printvar("Used key",used_key,8);
9b82de75 MHS	339	diversifyKey(CSN,used_key, div_key);
0eea34a2	340	PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
9b82de75	341	printvar("Div key", div_key, 8);
9e28ee9f	342	printvar("CC_NR:",CCNR,12);
74a38802	343	doMAC(CCNR,12,div_key, MAC);
9b82de75 MHS	344	printvar("MAC", MAC, 4);
9b82de75 MHS	345
26c0d833 MHS	346	UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
26c0d833 MHS	347	memcpy(d.d.asBytes, MAC, 4);
0eea34a2	348	if(!fake_dummy_test) SendCommand(&d);
26c0d833 MHS	349
	350	}else{
	351	PrintAndLog("Failed to obtain CC! Aborting");
	352	}
	353	} else {
	354	PrintAndLog("Command execute timeout");
	355	}
1e262141	356
	357	return 0;
	358	}
	359
fecd8202	360	int CmdHFiClass_iso14443A_write(const char *Cmd)
	361	{
	362	uint8_t readerType = 0;
	363	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
	364	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
	365	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
	366	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
fecd8202	367	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
3ad48540	368
fecd8202	369	uint8_t blockNo=0;
	370	uint8_t bldata[8]={0};
	371
	372	if (strlen(Cmd)<3)
	373	{
	374	PrintAndLog("Usage: hf iclass write <Key> <Block> <Data>");
	375	PrintAndLog(" sample: hf iclass write 0011223344556677 10 AAAAAAAAAAAAAAAA");
	376	return 0;
	377	}
	378
	379	if (param_gethex(Cmd, 0, KEY, 16))
	380	{
	381	PrintAndLog("KEY must include 16 HEX symbols");
	382	return 1;
	383	}
	384
	385	blockNo = param_get8(Cmd, 1);
	386	if (blockNo>32)
	387	{
	388	PrintAndLog("Error: Maximum number of blocks is 32 for iClass 2K Cards!");
	389	return 1;
	390	}
	391	if (param_gethex(Cmd, 2, bldata, 8))
	392	{
	393	PrintAndLog("Block data must include 8 HEX symbols");
	394	return 1;
	395	}
	396
aa41c605	397	UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}};
fecd8202	398	SendCommand(&c);
fecd8202	399	UsbCommand resp;
3ad48540	400
fecd8202	401	if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
	402	uint8_t isOK = resp.arg[0] & 0xff;
	403	uint8_t * data = resp.d.asBytes;
	404
	405	memcpy(CSN,data,8);
	406	memcpy(CCNR,data+8,8);
	407	PrintAndLog("DEBUG: %s",sprint_hex(CSN,8));
	408	PrintAndLog("DEBUG: %s",sprint_hex(CCNR,8));
	409	PrintAndLog("isOk:%02x", isOK);
	410	} else {
	411	PrintAndLog("Command execute timeout");
	412	}
3ad48540 MHS	413
	414	diversifyKey(CSN,KEY, div_key);
	415
fecd8202	416	PrintAndLog("Div Key: %s",sprint_hex(div_key,8));
74a38802	417	doMAC(CCNR, 12,div_key, MAC);
fecd8202	418
3ad48540 MHS	419	UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}};
	420	memcpy(c2.d.asBytes, bldata, 8);
	421	memcpy(c2.d.asBytes+8, MAC, 4);
	422	SendCommand(&c2);
a66fca86	423
fecd8202	424	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
	425	uint8_t isOK = resp.arg[0] & 0xff;
	426	uint8_t * data = resp.d.asBytes;
	427
	428	if (isOK)
	429	PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
	430	else
	431	PrintAndLog("isOk:%02x", isOK);
	432	} else {
	433	PrintAndLog("Command execute timeout");
	434	}
a66fca86 AD	435	return 0;
a66fca86 AD	436	}
6f101995 MHS	437	int CmdHFiClass_loclass(const char *Cmd)
	438	{
	439	char opt = param_getchar(Cmd, 0);
	440
	441	if (strlen(Cmd)<1 \|\| opt == 'h') {
	442	PrintAndLog("Usage: hf iclass loclass [options]");
	443	PrintAndLog("Options:");
	444	PrintAndLog("h Show this help");
	445	PrintAndLog("t Perform self-test");
	446	PrintAndLog("f <filename> Bruteforce iclass dumpfile");
	447	PrintAndLog(" An iclass dumpfile is assumed to consist of an arbitrary number of");
	448	PrintAndLog(" malicious CSNs, and their protocol responses");
	449	PrintAndLog(" The the binary format of the file is expected to be as follows: ");
	450	PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
	451	PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
	452	PrintAndLog(" <8 byte CSN><8 byte CC><4 byte NR><4 byte MAC>");
	453	PrintAndLog(" ... totalling N*24 bytes");
	454	return 0;
	455	}
	456	char fileName[255] = {0};
	457	if(opt == 'f')
	458	{
	459	if(param_getstr(Cmd, 1, fileName) > 0)
	460	{
	461	return bruteforceFileNoKeys(fileName);
	462	}else
	463	{
	464	PrintAndLog("You must specify a filename");
	465	}
	466	}
	467	else if(opt == 't')
	468	{
	469	int errors = testCipherUtils();
	470	errors += testMAC();
	471	errors += doKeyTests(0);
	472	errors += testElite();
	473	if(errors)
	474	{
	475	prnlog("OBS! There were errors!!!");
	476	}
	477	return errors;
	478	}
a66fca86	479
6f101995 MHS	480	return 0;
6f101995 MHS	481	}
c3963755	482
cee5a30d	483	static command_t CommandTable[] =
cee5a30d	484	{
6f101995 MHS	485	{"help", CmdHelp, 1, "This help"},
	486	{"list", CmdHFiClassList, 0, "[Deprecated] List iClass history"},
	487	{"snoop", CmdHFiClassSnoop, 0, "Eavesdrop iClass communication"},
	488	{"sim", CmdHFiClassSim, 0, "Simulate iClass tag"},
	489	{"reader",CmdHFiClassReader, 0, "Read an iClass tag"},
	490	{"replay",CmdHFiClassReader_Replay, 0, "Read an iClass tag via Reply Attack"},
	491	{"dump", CmdHFiClassReader_Dump, 0, "Authenticate and Dump iClass tag"},
	492	{"write", CmdHFiClass_iso14443A_write, 0, "Authenticate and Write iClass block"},
	493	{"loclass", CmdHFiClass_loclass, 1, "Use loclass to perform bruteforce of reader attack dump"},
	494	{NULL, NULL, 0, NULL}
cee5a30d	495	};
	496
	497	int CmdHFiClass(const char *Cmd)
	498	{
	499	CmdsParse(CommandTable, Cmd);
	500	return 0;
	501	}
	502
	503	int CmdHelp(const char *Cmd)
	504	{
	505	CmdsHelp(CommandTable);
	506	return 0;
	507	}