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:
Jun. 14, 2022
Filed:
Jul. 09, 2018
Arm Limited, Cambridge, GB;
Carl Wayne Vineyard, Leander, TX (US);
Christopher Neal Hinds, Austin, TX (US);
Adeline-Fleur Fleming, Duxford, GB;
ARM LIMITED, Cambridge, GB;
Abstract
A computing device incorporating repetitive side channel attack (SCA) countermeasures can include a timer circuit and a capacitive delay circuit that notifies of a potential repetitive-based attack by sending an activity-detected signal that can be used to initiate an appropriate countermeasure response. Additionally, or independently, a computing device incorporating repetitive SCA countermeasures can include at least one storage unit that can store an incoming input signal, at least one comparator to compare the incoming input signal with another signal and indicate a match, and a counter that increments upon the match. When the counter reaches a specified limit, a limit-exceeded signal can be sent to notify of a potential repetitive-based attack and initiate an appropriate countermeasure response.