#zer0ptsCTF2022 import os from random import randrange from Crypto.Util.number import bytes_to_long, long_to_bytes, getStrongPrime from Crypto.Util.Padding import pad from fastecdsa.curve import Curve def xgcd(a, b): x0, y0, x1, y1 = 1, 0,…

#zer0ptsCTF2022 from Crypto.Util.number import isPrime, getPrime, getRandomRange, inverse import os import signal signal.alarm(300) flag = os.environ.get("FLAG", "0nepoint{GOLDEN SMILE & SILVER TEARS}") flag = int(flag.encode().hex(), 16) …

#zer0ptsCTF2022 from Crypto.Util.number import isPrime, getStrongPrime from secret import flag def next_prime(n): n += 1 while not isPrime(n): n += 1 return n # Anti-Fermat Key Generation p = getStrongPrime(1024) q = next_prime(p ^ ((1<<10…

#zer0ptsCTF2022 from random import randrange from Crypto.Util.number import inverse, long_to_bytes from Crypto.Cipher import AES from hashlib import sha256 import ast import os import signal n = 256 p = 641410175380266908475076657440727641…