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.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Jul. 10, 2023
Pufsecurity Corporation, Hsinchu County, TW;
Kai-Hsin Chuang, Hsinchu County, TW;
Chi-Yi Shao, Hsinchu County, TW;
Chun-Heng You, Hsinchu County, TW;
PUFsecurity Corporation, Hsinchu County, TW;
Abstract
An anti-tampering detector and a method for detecting a physical attack are provided, wherein the anti-tampering detector includes a temperature sensor, a voltage detector, a frequency detector and a controller. The temperature sensor is configured to generate a temperature code according to an operation temperature. The voltage detector is configured to generate a voltage code according to a supply voltage and the temperature code. The frequency detector is configured to generate a frequency code according to a system clock, the temperature code and the voltage code. The controller is configured to generate an anti-tampering detection result according to the temperature code, the voltage code and the frequency code. The anti-tampering detection result indicates whether any of the operation temperature, the supply voltage and the system clock is tampered with due to the physical attack.