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:
Apr. 26, 2022
Filed:
Nov. 12, 2018
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Chiyoda-ku, JP;
Abstract
In Round1, each terminal device transmits a key encryption key which conforms to post-quantum cryptography to a neighboring terminal device; in Round2, each terminal device generates a key capsule of a key-shared-between-two-parties using the received key encryption key and returns the key capsule to a terminal device which is a source of the key encryption key; in Round3, each terminal device generates information based on the key-shared-between-two-parties and transmits the information to a key distribution management device and the key distribution management device distributes information, which is obtained based on these pieces of information, to the terminal devices. Each terminal device calculates a shared key based on the distributed information.