Kommunikationsvorrichtung und Kommunikationsverfahren zur Verarbeitung von Authentifizierungsinformationen

Details

Veröffentlichungs-Nr.

EP3672191

Aktenzeichen

EP19207396

Anmeldetag

6. November 2019

Veröffentlichung

16. März 2022

Erteilung

16. März 2022

Rechtsraum

EP

IPC

H04L29/06

Abstract

A communication device includes: a monitor, a message transmitter, an authentication information regenerator, an authentication information generator, and an authentication processor. The monitor monitors a first message that is periodically transmitted from a representative device in a first network. The message transmitter transmits a second message to the communication devices in the first network when the first message is not detected. When plural data components obtained by dividing authentication information have been distributed from the representative device to plural communication devices in the first network, the authentication information regenerator receives data components transmitted from the communication devices in the first network in response to the second message and regenerates the authentication information from the specified number of data components. The authentication information generator generates new authentication information by rewriting at least a portion of the regenerated authentication information. The authentication processor connects to the second network based on the new authentication information.

Anmelder

Firma

FUJITSU LIMITED

Land

🇯🇵 Japan

Fachgebiete