Verfahren zur Erhöhung der Sicherheit von Eingebetteten Prozessoren und Vorrichtung zur Durchführung des Verfahrens

Details

Veröffentlichungs-Nr.

EP3822837

Aktenzeichen

EP20179765

Anmeldetag

12. Juni 2020

Veröffentlichung

3. Januar 2024

Erteilung

3. Januar 2024

Rechtsraum

EP

IPC

G06F21/75

Abstract

The invention discloses a method for increasing security of embedded processors and an apparatus performing the method. The object to provide a method that only needs a slim hardware overhead to increase the security of embedded processors of a SoC and is completely transparent to the core logic of the processor is solved by a method using an existing debug infrastructure of a processor core of the embedded processor, whereas randomly controlled wait times or instructions forming a random signal are inserted in a program code performed by the processor by using neutral instructions that do not affect an actual program code of the processor, and whereas an external logic of the processor core post-processes the random signal to ensure that the random signal is inserted within a pre-determined rate.

Anmelder

Firmen

Shenzhen Goodix Technology Co., Ltd.
Commsolid GmbH

Land

🇨🇳 China

Fachgebiete