Decentralized electronic voting system operating efficiently in environment with multiple candidates

WO2024205182A3 Publication Date: 2025-06-19KOREA UNIV RES & BUSINESS FOUND +1
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Patent Information

Application Number
PCT/KR2024/003749
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-03-30
Filing Date
2024-03-26
Publication Date
2025-06-19

AI Technical Summary

Technical Problem

Existing decentralized electronic voting systems face inefficiencies in vote counting, especially when dealing with a large number of candidates, due to exponential computation increases, limiting their applicability to simple yes-or-no voting scenarios.

Method used

A decentralized electronic voting method that allows voters to perform self-tallying using the encrypt-then-cancel rule and zero-knowledge proof technology, enabling efficient vote counting without relying on a separate trust agency, by generating secret and public keys, encrypting votes, and using non-interactive zero-knowledge proofs to verify votes, thereby reducing computational complexity.

Benefits of technology

This approach dramatically reduces the computational burden for vote counting, making it feasible in environments with multiple candidates, and ensures the integrity and transparency of the voting process by allowing anyone to verify the results.

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Abstract

Disclosed are a decentralized electronic voting system and method which operate efficiently in an environment with multiple candidates. The electronic voting method is performed by a voter's terminal and comprises the steps of: agreeing on (G, g) for a group (G) of prime numbers (p) and a generator (g) of the group (G); generating a secret voting key and a public voting key and publishing the public voting key; generating encrypted votes and encrypted proofs for multiple candidates; publishing the encrypted votes; publishing the encrypted proofs; and calculating the number of votes in favor of each of the multiple candidates on the basis of the votes of all the voters.
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