Crypto ecb_mode from Crypto.Util.Padding import pad from Crypto.Cipher import AES from Crypto.Random import get_random_bytes from base64 import b64decode, b64encode flag = open('/flag', 'rb').read() BLOCK_SIZE = 16 key = get_random_bytes(16) crypto = AES.new(key, AES.MODE_ECB) while True: try: data = b64decode(input('plain text (base64) >> ')) except: print('Retry') continue enc_data = crypto.en..