Generate AES-cipher

		:return: Crypto.Cipher.AES.AESCipher

def cipher(self):
		""" Generate AES-cipher

		:return: Crypto.Cipher.AES.AESCipher
		"""
		#cipher = pyAES.new(*self.mode().aes_args(), **self.mode().aes_kwargs())
		cipher = Cipher(*self.mode().aes_args(), **self.mode().aes_kwargs())
		return WAES.WAESCipher(cipher)