#pwn2win2021 from math import sqrt from random import seed, shuffle from lost import e, flag from itertools import product from numpy import sign, diff assert flag.startswith('CTF-BR{') seed(6174) n = int(sqrt(len(flag))) + 2 order = list(…

#pwn2win2021 import hashlib import hmac import os flag = open("flag.txt", "rb").read() p = 0xFFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF a = 0xFFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC b = 0x5AC6…

#pwn2win2021 kangurei_2d5cf6c7539fce2f747b905167b0dce3904181b760b0d1bab7adbd2151665547.tar.gz hellman — Today at 3:30 AM kangurei: look at the encryption and notice that the quadratic map does not have full rank (only 48/64); => check for …

#pwn2win2021 #AES cladorhizidae_50bb826634ab0a20be92c226ae21f530b59818923e3920b5aa4b1a17cae0d69e.tar.gz

#pwn2win2021 #AES #differential_cryptoanalysis a2s_696ce43f930ebc1f53f413a7ef972d34155748dacc7a8ca8cdeeab7a50b7f12d.tar.gz