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. 16, 2026
Filed:
Jul. 02, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
Abstract
According to an embodiment, an information processing device includes a processor that divides input data based on photons received via a quantum cryptographic communication channel into a plurality of pieces of first divided data, obtains first numeric theory translation data of the first divided data by performing numeric theory translation on the plurality of pieces of first divided data, divides a Toeplitz matrix into a plurality of pieces of second divided data, obtains second numeric theory translation data of the second divided data by performing numeric theory translation on the plurality of pieces of second divided data, and performs privacy amplification processing on the input data based on a result obtained by performing inverse numeric theory translation on a multiplication result obtained by multiplying the first numeric theory translation data and the second numeric theory translation data.