Monotonischer Zähler und Verfahren zum Betrieb eines Monotonischen Zählers

Details

Veröffentlichungs-Nr.

EP3337039

Aktenzeichen

EP17153764

Anmeldetag

30. Januar 2017

Veröffentlichung

22. Juli 2020

Erteilung

22. Juli 2020

Rechtsraum

EP

IPC

H03K23/00H04L29/06H03K21/40

Abstract

The present application relates to a system hosting a monotonic counter and a method of operating the system. The system comprises a non-volatile memory (110) for holding a save counter value and a volatile memory (120) for maintaining a current counter value. The system (100) is configured during a startup phase to retrieve the saved counter value of the monotonic counter from the non-volatile memory (110); to detect whether a previous shutdown of the system (100) was an uncontrolled shutdown; and to adjust the retrieved counter value in accordance with a step size (130) provided at the system (100) in case an previous uncontrolled shutdown is detected.

Anmelder

Firma

NXP B.V.

Land

🇳🇱 Niederlande

Fachgebiete