Patent ID: 11893247
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A data storage device comprising:
a memory device including a protected memory block that is protected by a security protocol; and
a memory controller configured to receive a command protocol component, identify the command protocol component associated with the security protocol, find a host side protection message in the command protocol component, perform an authentication operation on the protected memory block using a host message authentication code included in the host side protection message, and access the protected memory block according to a result of the authentication operation,
wherein the command protocol component comprises:
a basic header segment configured to include a total additional header segment length field with a non-zero value indicating that the command protocol component is associated with the security protocol; and
an additional header segment configured to be used upon identifying that a value of the total additional header segment length field has the non-zero value and configured to include the host side protection message if the command protocol component is associated with the security protocol.