Vergleich von Ausführungkontextdaten Signaturen mit Referenzen

Details

Veröffentlichungs-Nr.

EP3373178

Aktenzeichen

EP17305248

Anmeldetag

8. März 2017

Veröffentlichung

18. September 2024

Erteilung

18. September 2024

Rechtsraum

EP

IPC

G06F13/28G06F21/52G06F21/54

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 (110). 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.

Anmelder

Firma

Secure-IC SAS

Land

🇫🇷 Frankreich

Fachgebiete