Stands for Advanced Encryption Standard, an encryption algorithm that has replaced the earlier Data Encryption Standard (DES) as the official U.S. government encryption standard.
A cryptographic algorithm specified by the National Institute of Standards and Technology (NIST) to protect sensitive information. AES is specified in three key sizes: 128, 192, and 256 bits. AES replaces the 56-bit key Data Encryption Standard (DES), which was adopted in 1976. See also DES.