US 12,443,735 B2
Method and device for data storage device user authentication
Prajual PJ, Bengaluru (IN); Penki Supriya, District Rayagada (IN); and Shinoj Bhaskaran, Bengaluru (IN)
Assigned to Sandisk Technologies, Inc., Milpitas, CA (US)
Filed by Sandisk Technologies, Inc., Milpitas, CA (US)
Filed on Nov. 9, 2023, as Appl. No. 18/388,513.
Prior Publication US 2025/0156566 A1, May 15, 2025
Int. Cl. G06F 21/62 (2013.01); H04L 9/06 (2006.01)
CPC G06F 21/6218 (2013.01) [H04L 9/0618 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data storage device comprising:
a non-volatile storage medium configured to store encrypted user data associated with a first user in a first logical unit;
a data port configured to receive and transmit data between a host computer system and the data storage device; and
one or more processors, individually or in combination, configured to:
receive, via the data port, authentication information indicating the first user, wherein the authentication information is received responsive to a graphical user interface on the host computer system; and
in response to determining, based on the authentication information, that the first user is authorized to access the first logical unit:
transmit, via the data port, configuration information including a logical unit number associated with the first logical unit, wherein the graphical user interface is configured to selectively display, responsive to the configuration information, the configuration information for the first logical unit and not display other configuration information for at least one other logical unit in the non-volatile storage medium that is not associated with the first user; and
in response to receiving, via the data port, a read request, the read request comprising a request to read the encrypted user data stored in the first logical unit:
decrypt the encrypted user data to produce plaintext user data; and
transmit, via the data port, the plaintext user data.