The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Aug. 29, 2023
Kabushiki Kaisha Toshiba, Tokyo, JP;
Keisuke Mera, Tokyo, JP;
Koji Kanazawa, Tokyo, JP;
Katsuyuki Kimura, Kamakura Kanagawa, JP;
Yoshimichi Tanizawa, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
According to one embodiment, a key management device includes an acquiring circuitry and a processor. The acquiring circuitry is configured to: acquire identity verification data of a remote QKD key generated by a remote QKD device, and remote QKD device identification information identifying the remote QKD device, from another key management device via a classical communication channel. The processor is configured to: collect a local QKD key generated by a local QKD device and local QKD device identification information identifying the local QKD device; generate identity verification data of the local QKD key; and map, when the identity verification data of the remote QKD key matches the identity verification data of the local QKD key, the remote QKD device identification information to the local QKD device identification information.