getstrongprimeはsafe_primeを返すわけではない
#zer0ptsCTF2021 import os import signal import random from base64 import b64encode from Crypto.Util.number import getStrongPrime, bytes_to_long from Crypto.Util.Padding import pad from Crypto.Cipher import AES from flag import flag p = get…
#corctf2021 from random import shuffle, randrange, randint from os import urandom from Crypto.Util.number import getPrime, getStrongPrime, long_to_bytes from Crypto.Cipher import AES from Crypto.Util.Padding import pad from private import …
#corctf2021 from Crypto.Util.number import bytes_to_long, getStrongPrime from random import randrange from secret import flag LIMIT = 64 def gen(): p = getStrongPrime(512) g = randrange(1, p) return g, p def main(): g, p = gen() print("g:"…
#zer0ptsCTF2021 import random import signal from flag import flag from Crypto.Util.number import getStrongPrime, inverse HANDNAMES = { 1: "Rock", 2: "Scissors", 3: "Paper" } def commit(m, key): (g, p), (x, _) = key r = random.randint(2, p-…
