US 11,893,247 B2
Data storage device and method of operating the same
Hui Won Lee, Icheon-si (KR)
Assigned to SK HYNIX INC., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Mar. 5, 2021, as Appl. No. 17/194,099.
Claims priority of application No. 10-2020-0122028 (KR), filed on Sep. 22, 2020.
Prior Publication US 2022/0091756 A1, Mar. 24, 2022
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01)
CPC G06F 3/0622 (2013.01) [G06F 3/064 (2013.01); G06F 3/0653 (2013.01); G06F 3/0659 (2013.01); G06F 3/0679 (2013.01)] 20 Claims
OG exemplary drawing
 
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.