Vorrichtung zur Steuerung von Quantenkryptographiekommunikation, System zur Quantenkryptographiekommunikation, Verfahren zur Steuerung von Quantenkryptographiekommunikation und Computerprogrammprodukt

Details

Veröffentlichungs-Nr.

EP4776563

Anmeldetag

14. November 2025

Veröffentlichung

15. Juli 2026

Rechtsraum

EP

IPC

H04L9/08

Abstract

In a quantum cryptography communication control device according to one arrangement, a collection unit collects link information of a link for which a local key is generated by quantum key distribution and a global key guarantee amount of each of a plurality of application pairs executing cryptography communication using a global key. A calculation unit calculates a link cost used for selecting a relay route of the global key based on the link information. A guarantee amount calculation unit calculates a local key guarantee amount allocated to the link for relaying the global key of each of the plurality of application pairs such that the guaranteed amounts of global keys for the plurality of application pairs are simultaneously satisfied. The selection unit selects the relay route of the global key based on the link cost and the local key guarantee amount.

Anmelder

Firmen

KABUSHIKI KAISHA TOSHIBA
Toshiba Digital Solutions Corporation

Land

🇯🇵 Japan

Fachgebiete