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. 26, 2020
Filed:
Feb. 01, 2016
Nippon Telegraph and Telephone Corporation, Chiyoda-ku, JP;
Dai Ikarashi, Musashino, JP;
Ryo Kikuchi, Musashino, JP;
Koki Hamada, Musashino, JP;
Koji Chida, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Chiyoda-ku, JP;
Abstract
An inconsistency in shares is detected with a small volume of communications traffic. n inconsistency detecting devices generate random numbers sand make the random numbers spublic. The n inconsistency detecting devices generate a common random number s which is the sum total of the random numbers s, . . . , s. The n inconsistency detecting devices calculate shares [c]. The n inconsistency detecting devices generate shares [r], each of which would become a random number r by reconstruction. The n inconsistency detecting devices calculate shares [d], each of which would become a judgment value d by reconstruction. One inconsistency detecting device receives shares [d], . . . , [d]from n−1 inconsistency detecting devices. The one inconsistency detecting device restores n−k shares [d]', . . . , [d]′from k shares [d], . . . , [d]. The one inconsistency detecting device judges, for j=k, . . . , n−1, whether or not a share [d]and a share [d]′coincide with each other.