Python script to solve "Phone Lock" challenge in Hack Dat Kiwi 2015

web50.py

#!/usr/bin/python
# Author: Kitwipat Towattana (@icheernoom)

import hashlib, sys

salt = 'f074dc1fbaaf66163dfca8ad1079ceea' # random
valid = 'a8178dee94945e518c90dad6bffcc657' # random

'''
if (md5(salt+result)==valid)
flag = md5(salt+result+result)
'''

for result in range(0000,9999):
	md5 = hashlib.md5("{0}{1}".format(salt,result)).hexdigest()
	print "{0} : {1}".format(result,md5)
	if md5 == valid:
		md5flag = hashlib.md5("{0}{1}{2}".format(salt,result,result)).hexdigest()
		print "Password: {0}".format(result)
		print "Flag: {0}".format(md5flag)
		sys.exit()

'''
root@ubuntu:~# web50.py
...[snip]...
3396 : da54054da6a7cefa3204713b71669566
3397 : bf918a33c530b497779200888e6eb582
3398 : a8178dee94945e518c90dad6bffcc657
Password: 3398
Flag: 98635f80048b8abbd71e9bb55958a6c8
root@ubuntu:~#
'''