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:
Sep. 23, 2025

Filed:

Sep. 27, 2023
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventors:

Haohua Zhou, Fremont, CA (US);

Sandeep Kumar Goel, Dublin, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01); G06F 21/73 (2013.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3239 (2013.01); H04L 9/0869 (2013.01); H04L 9/3278 (2013.01); H04L 2209/805 (2013.01);
Abstract

A device is disclosed. The device includes a first memory circuit and a processing circuit. The first memory circuit stores identifications of the device that are used to generate first hash data through a hash algorithm. The processing circuit is coupled to the first memory circuit and selects at least one bit of each of the identifications in sequence to form a bit sequence, generates second hash data through the hash algorithm based on the bit sequence and authenticates the device according to a comparison between the first hash data and the second hash data.


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