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:
Dec. 27, 2022
Filed:
Mar. 01, 2018
Secure-ic Sas, Cesson-Sévigné, FR;
Thibault Porteboeuf, Paris, FR;
SECURE-IC SAS, Cesson-Sévigné, FR;
Abstract
There is disclosed a circuit for monitoring the security of a processor, wherein the circuit is configured to access a memory configured to store execution context data of a software program executed by the processor; to determine one or more signatures from said execution context data; and to compare said signatures with predefined signatures to monitor the security of the processor (). Developments describe that context data can comprise control flow data, that a signature can comprise a hash value or a similarity signature, or that the integrity of signatures can be verified for example by using a secret key (e.g. obtained by random, or by using a physically unclonable function). Further developments describe various controls or retroactions on the processor, as well as various countermeasures if cyber attacks are determined.