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.

Date of Patent:
Sep. 02, 2025

Filed:

Mar. 19, 2021
Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Yoshiyuki Etou, Tokyo, JP;

Wataru Itonaga, Tokyo, JP;

Daisuke Matsuda, Tokyo, JP;

Ryo Furukawa, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07C 13/00 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
G07C 13/00 (2013.01); H04L 9/085 (2013.01); H04L 2209/463 (2013.01);
Abstract

A voting system and a voting method by which electronic voting can be securely conducted are provided. A voting system includes: a secret sharing unit that generates a plurality of shares from voting information by secret sharing; a plurality of share storage units that store the plurality of shares in a distributed manner; a first blockchain processing unit that transmits, to a node managing a blockchain, transaction data of voting conducted using the voting information in order to record the transaction data in the blockchain; and a secure computation unit that performs secure computation for analyzing the voting by using the shares stored in a distributed manner.


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