pbctf2020 RSA RSAで一部の値がわかっている時 #!/usr/bin/env python3 from Crypto.Util.number import getStrongPrime, inverse, bytes_to_long, GCD as gcd from Crypto.Random.random import randint from flag import flag p = getStrongPrime(512) q =…

ECDSA pbctf2020 #!/usr/bin/env python3 from Crypto.Cipher import AES from Crypto.Util.Padding import pad, unpad from ecdsa import SECP256k1 from ecdsa.ecdsa import Public_key, Private_key from flag import flag import hashlib import random …