AES Encryption

Advanced Encryption Standard (AES) is a specification for the encryption of electronic data, established by the US National Institute of Standards and Technology. AES has a fixed block size of 128 bits; and a key size of 128, 192, or 256 bits, which is used to define the strength of the encryption. AES-256, for example, uses a 256-bit key and is the highest level of encryption defined under the standard.