Information, Computer and Network Security Terms Glossary and
AES: Advanced Encryption Standard
The Advanced Encryption Standard (AES), also known as Rijndael, is a block cipher adopted as an encryption standard developed by NIST. AES is intended to specify an unclassified, publicly-disclosed, symmetric encryption algorithm. AES has a fixed block size of 128 bits and a key size of 128, 192 or 256 bits.