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:
Jul. 08, 2025
Filed:
Oct. 16, 2020
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Dai Ikarashi, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
A set SP(i) of k secure computation apparatuses selected from a set PA of n secure computation apparatuses repeats processing of multiplying a share according to a secret sharing scheme, by power-of-2 number 2ρ(SP(i)) with the share ρ(SP(i)) as an exponent, the share ρ(SP(i)) being obtained by secret sharing of ρ according to a replicative secret sharing scheme, and redistribution the value obtained in the processing is redistributed into the set SP(i+1) of k secure computation apparatuses selected from the set PA of n secure computation apparatuses. However, the final time is not re-dispersed. Thus, a share of a multiplicative rotation result is obtained. However, the final time is not re-dispersed. Thus, a share of a multiplicative rotation result is obtained.