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On Secure E-Voting over Blockchain

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JournalDigital Threats: Research and Practice
DateAccepted/In press - 1 Apr 2021
DateE-pub ahead of print - 15 Oct 2021
DatePublished (current) - 1 Dec 2021
Issue number4
Volume2
Number of pages13
Early online date15/10/21
Original languageEnglish

Abstract

This article discusses secure methods to conduct e-voting over a blockchain in three different settings: decentralized voting, centralized remote voting, and centralized polling station voting. These settings cover almost all voting scenarios that occur in practice. A proof-of-concept implementation for decentralized voting over Ethereum's blockchain is presented. This work demonstrates the suitable use of a blockchain not just as a public bulletin board but, more importantly, as a trustworthy computing platform that enforces the correct execution of the voting protocol in a publicly verifiable manner. We also discuss scaling up a blockchain-based voting application for national elections. We show that for national-scale elections the major verifiability problems can be addressed without having to depend on any blockchain. However, a blockchain remains a viable option to realize a public bulletin board, which has the advantage of being a "preventive"measure to stop retrospective changes on previously published records as opposed to a "detective"measure like the use of mirror websites. CCS Concepts: • Security and privacy;

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    Research areas

  • blockchain, boardroom voting, E-voting, Ethereum, national elections

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