TrustVote: Dispute-resolution mechanisms and systems for Private and Verifiable Voting

Lead Research Organisation: University of Surrey
Department Name: Computing Science

Abstract

Running elections is challenging while maintaining election integrity and increased voter confidence. Recent examples have shown that both traditional and online voting systems are not sufficient resilient to achieve this, e.g. 2022 Nigeria election (e.g., voting starting late, accusations of vote tampering, and technical issues with the voting devices), 2020 US presidential election (e.g., unsubstantiated claims and voter mistrust over voting device corruption and doubts over election integrity), 2019 Moscow election (e.g., cryptographic issues), and 2011-2013 Norway elections (e.g., software inaccuracies, voters voting twice - online and in-person).

In 2020 the European Commission for democracy through law has highlighted in their CDL-AD(2020)025-e report that dispute-resolution is an essential requirement for successful elections. Their focus has been on providing an overview of the types of disputes that appear in polling stations and the legal mechanisms to handle complaints. The 2022 UK Tory leadership election (that used online voting) and the UK House of Commons divisions raise interesting challenges that have not been previously addressed.

This project will build the foundations for real-world dispute-resolution in voting by formalizing disputes, types and timing of dispute evidence, and introducing definitions to accurately model those disputes and their context. Moreover, it will propose novel dispute-resolution mechanisms to completely solve or mitigate those disputes.

Research into dispute-resolution has been so underdeveloped, as there are few voting protocols that are known or believed to satisfy dispute-resolution. The project will enhance existing academic protocols (e.g., Helios, Belenios, Selene, JCJ/Civitas) and real-world systems (e.g., ElectionGuard, Swiss Postal Voting) to satisfy dispute-resolution. To ensure the confidence in our analysis, we'll provide where appropriate machine-checked proof guarantees for the novel mechanisms and updated protocols and systems.

Publications

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