Lecture

Decentralized E-Voting: Challenges and Solutions

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Description

This lecture covers the challenges and solutions in decentralized e-voting systems, focusing on the phases of voter registration, ballot preparation, casting, and counting. It discusses the requirements for integrity, privacy, transparency, and coercion resistance. The instructor explains in-person voting methods and the concept of remote e-voting, emphasizing end-to-end verifiability and the use of public bulletin boards or ledgers. The lecture also addresses challenges like coercion resistance and the approaches to ensure cast-as-intended and counted-as-recorded properties. It concludes with insights into the Swiss Post e-voting system, emphasizing the importance of individual and universal verifiability, as well as the rigorous security measures in place.

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Related concepts (32)

Electronic voting

Electronic voting (also known as e-voting) is voting that uses electronic means to either aid or take care of casting and counting ballots. Depending on the particular implementation, e-voting may use standalone electronic voting machines (also called EVM) or computers connected to the Internet (online voting). It may encompass a range of Internet services, from basic transmission of tabulated results to full-function online voting through common connectable household devices.

Voting

Voting is a method by which a group, such as a meeting or an electorate, convenes together for the purpose of making a collective decision or expressing an opinion usually following discussions, debates or election campaigns. Democracies elect holders of high office by voting. Residents of a jurisdiction represented by an elected official are called "constituents", and the constituents who choose to cast a ballot for their chosen candidate are called "voters.

Postal voting

Postal voting is voting in an election where ballot papers are distributed to electors (and typically returned) by post, in contrast to electors voting in person at a polling station or electronically via an electronic voting system. In an election, postal votes may be available on demand or limited to individuals meeting certain criteria, such as a proven inability to travel to a designated polling place. Most electors are required to apply for a postal vote, although some may receive one by default.

End-to-end auditable voting systems

End-to-end auditable or end-to-end voter verifiable (E2E) systems are voting systems with stringent integrity properties and strong tamper resistance. E2E systems often employ cryptographic methods to craft receipts that allow voters to verify that their votes were counted as cast, without revealing which candidates were voted for. As such, these systems are sometimes referred to as receipt-based systems.

Ranked voting

The term ranked voting, also known as preferential voting or ranked choice voting, pertains to any voting system where voters use a rank to order candidates or options—in a sequence from first, second, third, and onwards—on their ballots. Ranked voting systems vary based on the ballot marking process, how preferences are tabulated and counted, the number of seats available for election, and whether voters are allowed to rank candidates equally.

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