from Crypto.Cipher import AES
from random import randint
from time import time
from struct import pack

BS = AES.block_size
pad = lambda s: s + '\x00' * (BS - len(s) % BS)

secret = pad('Well done! your flag is: <redacted>')
k1 = 0
while k1 <=0xFFFFFF:
    key1 = pad(pack('<I', int(k1)))
    c1 = AES.new(key1, AES.MODE_ECB)
    print key1.encode('hex'),':',c1.encrypt(secret).encode('hex')
    k1 = k1+1