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:
Nov. 29, 2022
Filed:
Aug. 16, 2018
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
Dai Ikarashi, Musashino, JP;
Ryo Kikuchi, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Chiyoda-ku, JP;
Abstract
A secure computation device obtains concealed information {M(i, . . . , i)} of a table M(i, . . . , i) having one-variable function values as its members. It is to be noted that M(i, . . . , i) generated by substituting counter values i, . . . , iinto the table M(i, . . . , i) represents a matrix M, which is any one of M, . . . , M. The secure computation device obtains concealed information {M} by secure computation using concealed information {i}, . . . , {i} and the concealed information {M(i, . . . , i)}, and obtains concealed information {M} of a matrix M, which is obtained by execution of a remaining process including those processes among a process P, a process P, a process P, and a process P, that are performed subsequent to a process P.