gistfile1.txt

#!/usr/bin/env python

from hashlib import md5
import SocketServer, threading, os
import time

SECRET  = os.urandom(32)
FIND_ME = os.urandom(2).encode("hex")

msg = """/------------------------------------------------------------------------------\\
| Welcome Hash Service Challenge                                               |
|                                                                              |
| md5(SECRET + FIND_ME) = %s !                 |
| We let you hash as many md5(SECRET + YOUR_VALUE + TIMESTAMP)                 |
| You have to find FIND_ME !                                                   |
\______________________________________________________________________________/
""" % (md5(SECRET + FIND_ME).hexdigest())


class threadedserver(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
  pass

class incoming(SocketServer.BaseRequestHandler):
  def handle(self):
  	self.request.sendall(msg + "\n")
  	
  	while True:
	  	self.request.sendall("YOUR_VALUE = ")

	  	val = self.request.recv(1024)
	  	timestamp = int(time.time())
	  	h = md5(SECRET + val + str(timestamp)).hexdigest()

	  	self.request.sendall("HASH = %s TIMESTAMP = %s \n" % (h, timestamp))


SocketServer.TCPServer.allow_reuse_address = True
server = threadedserver(("0.0.0.0", 4322), incoming)
server.timeout = 4
server_thread = threading.Thread(target=server.serve_forever)
server_thread.daemon = False
server_thread.start()