US Patent 9665501 Self-encrypting data storage device supporting object-level encryption

A data storage device includes: a controller; an engine for performing at least one of encryption and decryption; and a logic circuit. In response to receiving a memory access command, the controller controls the logic circuit to generate an initialization vector based on initialization information in a first portion of the received command, selects a key from a plurality of keys based on key information in a second portion of the command, and controls the engine to perform at least one of encrypting and decrypting plain text data specified by the received command using the initialization vector and the selected key.