[Resource Topic] 2025/929: The DROP Protocol: Dispute Resolution via Observation in Public for Verifiable, In-Person Voting

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Title:
The DROP Protocol: Dispute Resolution via Observation in Public for Verifiable, In-Person Voting

Authors: Josh Benaloh, Michael Naehrig, Olivier Pereira

Abstract:

Dispute resolution has been a significant challenge in verifiable election protocols since such protocols were first proposed more than forty years ago. This work explores the problem from a new perspective and offers strong dispute resolution for in-person voting by depending on observers.

It proposes a simple definition of dispute resolution as a property of a voting protocol—a definition that is independent of any other security goal. It also presents the DROP protocol, a verifiable, in-person voting protocol that runs in the presence of observers who will always reach a correct conclusion in the case of a dispute without ever being able to compromise privacy or facilitate coercion.

ePrint: https://eprint.iacr.org/2025/929

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