Data at rest encryption terminology

The following table describes the data at rest encryption terminology.

Table: Data at rest encryption terminology

Term	Description
Advanced Encryption Standard (AES)	Specifies the synchronous encryption algorithm that replaced DES.
Asynchronous encryption	Includes the encryption algorithms that use both a public key and private key.
Data Encryption Standard (DES)	Specifies the accepted synchronous data encryption standard from the 1970s until 1998.
Initialization vector	Specifies a seed value that is used to prime an encryption algorithm. Priming is done to obscure any patterns that would exist when using the same key to encrypt a number of data files. These files begin with the same pattern.
Public Key Encryption	Uses asynchronous encryption.
Synchronous encryption	Includes the encryption algorithms that use the same key for both encryption and decryption. For the same key size, synchronous algorithms are faster and more secure than their asynchronous counterparts.