[MeePwn 2017] [Crypto 100 – MATH] Write Up

Description

I hack your brain!

Et nous avons un script en python nommé hack.py dont voici le contenu.

#!/usr/bin/python
from Crypto.Util.number import *
from hashlib import md5
 
flag = "XXX"
assert len(flag) == 14
pad = bytes_to_long(md5(flag).digest())
 
hack = 0
for char in flag:
    hack+= pad
    hack*= ord(char)
print hack
 
#hack = 64364485357060434848865708402537097493512746702748009007197338675
#flag_to_submit = "MeePwnCTF{" + flag + "}"

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