Sung, Hung-MingHung-MingSungChen, TimothyTimothyChenLin, Jin-YaoJin-YaoLinHung, Yi-PingYi-PingHung2026-03-192026-03-192025-11-24[9789869531771]https://www.scopus.com/record/display.uri?eid=2-s2.0-105029873006&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/736446Voting, an important process of modern democracy, is naturally subject to coercion and corruption. With the rise of blockchain technology, conducting such campaign on blockchain has drawn attention with its potential to provide a secure, transparent and decentralized voting system. However, with the nature of blockchain being a public ledger, concerns about the privacy arise. In this work, we present a receipt free voting protocol utilizing blockchain as public tally. By separating operating authority into identity authority which is responsible for verifying the voter's identity and voting authority which is responsible for generating encrypted ballots and tallying, we ensure that the privacy of voters is protected while allowing any third party to verify the integrity of the vote and the tally. The protocol makes use of homomorphic encryption for the tally state and blind signature for ballot verification. The protocol achieves receiptfreeness assuming that both authorities are honest.falseBlockchainE-votingPrivacySmart Contractsconference paper10.23919/pnc67749.2025.112455352-s2.0-105029873006