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Contribution Details
Type | Master's Thesis |
Scope | Discipline-based scholarship |
Title | Design and Implementation of a Verifiable Remote Postal Voting System |
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Institution | University of Zurich |
Faculty | Faculty of Business, Economics and Informatics |
Date | 2022 |
Abstract Text | Switzerland allows its citizens to participate in elections and votes by casting ballots via postal mail. This practice, referred to as “Remote Postal Voting”, is a convenient way for voters to cast their ballots without visiting a polling station. However, the application of Remote Postal Voting has raised security concerns regarding vote- and election manipulations by voting officials or third parties. These concerns have been confirmed in practice, where malicious activities have been discovered on multiple occasions. This thesis aims at providing verifiability for Remote Postal Voting procedures by presenting the design and implementation of a verifiable Remote Postal Voting system. The design integrates well into the existing Swiss Remote Postal Voting procedures. It leverages blockchain technology, Homomorphic Encryption, Non-Interactive Zero Knowledge Proofs, and Threshold Cryptography to meet privacy and verifiability requirements. The evaluation shows that the proposed system scales well in the Swiss Remote Postal Voting scenario, whereas further optimization would be necessary for larger countries. |
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