Verfahren zur Initialisierung eines Computersystems und Computersystem gegen Rollback Angriffen

Details

Veröffentlichungs-Nr.

EP3382590

Aktenzeichen

EP17164299

Anmeldetag

31. März 2017

Veröffentlichung

16. Oktober 2019

Erteilung

16. Oktober 2019

Rechtsraum

EP

IPC

G06F21/57

Abstract

A method for initializing a computerized system (1) by executing a boot-script (5) having an associated private security key (X i ), wherein the computerized system (1) comprises a first secure storage device (2) for storing a plurality of public keys (Y 1 - Y N ) each having a public key index (k 1 - k N ) assigned thereto and a second secure storage device (3) for storing a current key index (k), wherein the boot-script (5) is only executed if a public key (Y i ) selected from the plurality of public keys (Y 1 - Y N ) is uniquely related to the private security key (X i ) such as to form a unique key pair with the private security key (X i ) and has a booting key index (k i ) having a predetermined relationship with the current key index (k).

Anmelder

Firma

OMRON Corporation

Land

🇯🇵 Japan

Fachgebiete