#nullconHackIM2019 https://ctftime.org/task/7514 4 bit key space is brute forceable so how about 48 bit key space? flag is hackim19{decrypted flag} 16 bit plaintext: b'0467a52afa8f15cfb8f0ea40365a6692' flag: b'04b34e5af4a1f5260f6043b8b9abb…

from hashlib import md5 from base64 import b64decode from base64 import b64encode from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from random import randrange import string alphabet = string.ascii_lowercase + strin…

#angstromctf_2022 #!/usr/local/bin/python3 from Crypto.Util.number import getStrongPrime, long_to_bytes, bytes_to_long, inverse from secrets import randbelow, token_bytes print("Welcome to my super secret service! (under construction)") BI…