The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 01, 2022

Filed:

Nov. 02, 2020
Applicant:

Silicon Motion, Inc., Hsinchu County, TW;

Inventor:

Chiao-Wen Cheng, Taichung, TW;

Assignee:

Silicon Motion, Inc., Hsinchu County, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G06F 12/14 (2006.01); G06F 12/02 (2006.01); G06F 13/16 (2006.01); G06F 21/79 (2013.01); G06F 21/60 (2013.01);
U.S. Cl.
CPC ...
G06F 12/1408 (2013.01); G06F 12/0238 (2013.01); G06F 13/1605 (2013.01); G06F 13/1668 (2013.01); G06F 21/602 (2013.01); G06F 21/79 (2013.01);
Abstract

A data accessing method using data protection with aid of an Advanced Encryption Standard (AES) processing circuit, and associated apparatus such as memory device, memory controller, and the AES processing circuit are provided. The data accessing method includes: utilizing the memory controller to start receiving first protected data corresponding to a read request from predetermined storage space; utilizing the AES processing circuit to start performing decryption processing on the first protected data to obtain decrypted data; utilizing the AES processing circuit to start performing encryption processing on other data to obtain encrypted data to be second protected data corresponding to a write request; and utilizing the memory controller to start sending the second protected data to the predetermined storage space, for storing the second protected data into the predetermined storage space. The AES processing circuit can perform encryption and decryption simultaneously.


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