#SECCON_CTF_2022_Quals #kurenaif from Crypto.Util.number import * from flag import flag p = getStrongPrime(512) q = getStrongPrime(512) e = 65537 n = p * q phi = (p - 1) * (q - 1) d = pow(e, -1, phi) print(f"n = {n}") print(f"e = {e}") pri…

#seccon2021 #kurenaif import base64 from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from Crypto.Util.Padding import pad, unpad from Crypto.Util.strxor import strxor from flag import flag import signal key = get_ran…

#kurenaif #seccon2021 from Crypto.Util.number import * from flag import flag p = getStrongPrime(512) q = getStrongPrime(512) n = p*q mid = len(flag) // 2 e = 65537 m1 = int.from_bytes(flag[:mid], byteorder='big') m2 = int.from_bytes(flag[m…

#seccon2021 #kurenaif import signal from Crypto.Util.number import long_to_bytes, bytes_to_long, getPrime import random from flag import flag message = b"" for _ in range(128): message += b"o" if random.getrandbits(1) == 1 else b"O" M = ge…

#SECCON_CTF_2022_Quals #kurenaif from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from Crypto.Util.Padding import pad, unpad from flag import flag, secret_spell key = get_random_bytes(16) nonce = get_random_bytes(16…

#SECCON_CTF_2022_Quals #kurenaif from Crypto.Util.number import * from Crypto.Random import * from flag import flag p = getPrime(512) q = getPrime(512) r = getPrime(512) n = p * q * r e = 2 * 65537 assert n.bit_length() // 8 - len(flag) > …