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:
Jan. 21, 2025
Filed:
Aug. 30, 2022
Kabushiki Kaisha Toshiba, Tokyo, JP;
Yasuhiro Fujiyoshi, Tokorozawa Saitama, JP;
Yoshimichi Tanizawa, Yokohama Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to an embodiment, a quantum cryptography storage system includes a plurality of storage, a distribution control device, and a distribution device. The plurality of storage devices are connected via a communication network. The distribution control device determines a distribution mode of shares into which data is distributed, based on quantum key distribution network (QKDN) information. The generation device generates an encryption key and a decryption key by using a quantum key shared by using a QKDN. The distribution device distributes the data into the shares, based on the distribution mode. When receiving a share encrypted using the encryption key via the communication network, each of the plurality of storage devices that stores the shares in a distributed manner decrypts the share encrypted with the decryption key and stores a share decrypted.