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:
May. 05, 2026
Filed:
Feb. 10, 2021
Nec Corporation, Tokyo, JP;
Hikaru Tsuchida, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A secure computation server apparatus in a secure computation system includes: a table storage part that stores a table of secret shares of the product of a first value and a second value for combinations of shares of possible values of the first value and shares of possible values of the second value; a table shuffle part that shuffles indices of possible values of the first value and indices of possible values of the second value in the table; a multiplication part that selects an element in the table whose indices in the shuffled table match the first and the second values; and a comparative verification part that accepts data that a majority of other secure computation server apparatuses agrees on as a correct value out of a plurality of data received from the other secure computation server apparatuses.