ricardojba

#!/usr/bin/env python3

# oposec-padding-oracle.py

import os
import base64
import urllib3
import requests
import threading
from concurrent.futures import ThreadPoolExecutor

ricardojba

# oposec-xor-known-plaintext-attack-encrypted-chat.py
# ncat madlabs.pw 1337
encrypted_flag      = bytes.fromhex("418831b6416977a29459e1071f4a08ceb24beed7d9364ca2b23460")
encrypted_plaintext = bytes.fromhex("61a81196414f558eaa09f6390c181cdce075bec5e7301ef7a7747c77")
known_plaintext     = b"flag{" + b"a" * 50
key                 = bytes(x ^ y for x, y in zip(encrypted_plaintext, known_plaintext))
flag                = bytes(x ^ y for x, y in zip(encrypted_flag, key))
print(flag)