Sicherheitsschaltung für eine Aufzugsanlage, Vorrichtung und Verfahren zur Aktualisierung Solch einer Sicherheitsschaltung

Details

Veröffentlichungs-Nr.

EP3530602

Aktenzeichen

EP18158447

Anmeldetag

23. Februar 2018

Veröffentlichung

17. Juni 2020

Erteilung

17. Juni 2020

Rechtsraum

EP

IPC

H04L29/06G06F21/33G06F21/64B66B13/22H04L9/00H04L9/08

Abstract

A method of updating at least one security certificate (21b, 22b, 23b 26) of a safety circuit (21, 22, 23) of an elevator system (2) comprises: connecting the safety circuit (21, 22, 23) with a communicator (30) which is capable to communicate with a certification server (36); sending from the communicator (30) to the safety circuit (21, 22, 23) a security certificate update request for updating at least one security certificate (21b, 22b, 23b, 26) stored within the safety circuit (21, 22, 23); the safety circuit (21, 22, 23) sending a public key of a safety circuit security certificate (21b, 22b, 23b) associated with the safety circuit (21, 22, 23) via the communicator (30) to the certification server (36); the certification server (36) checking whether the safety circuit security certificate (21b, 22b, 23b) associated with the received public key is included in a data base (38) of known security certificates and not marked as compromised; in case the safety circuit security certificate (21b, 22b, 23b) associated with the received public key is included in a data base (38) of known safety circuit security certificates (21b, 22b, 23b) and not marked as compromised: sending at least one new security certificate (21c, 22c, 23c, 27) from the certification server (36) via the communicator (30) to the safety circuit (21, 22, 23) and installing the at least one new security certificate (21c, 22c, 23c, 27) on the safety circuit (21, 22, 23).

Anmelder

Firma

Otis Elevator Company

Land

🇺🇸 USA

Fachgebiete