Eos a Universal Verifiable and Coercion Resistant Voting Protocol

Stefan Patachi, Carsten Schürmann

Research output: Conference Article in Proceeding or Book/Report chapterArticle in proceedingsResearchpeer-review


We present the voting protocol Eos that is based on a conditional linkable ring signatures scheme. Voters are organized in rings allowing them to sign votes anonymously. Voters may assume multiple pseudo identities, one of which is legitimate. We use the others to signal coercion to the Election Authority. Eos uses two mixing phases with the goal to break the connection between the voter and vote, not to preserve vote privacy (which is given already) but to guarantee coercion resistance by making it (nearly) impossible for a coercer to follow their vote through the bulletin board. Eos is universally verifiable.
Original languageEnglish
Title of host publicationElectronic Voting : Second International Joint Conference, E-Vote-ID 2017, Bregenz, Austria, October 24-27, 2017, Proceedings
Number of pages17
Place of PublicationBregenz/Lochau
Publication date2017
ISBN (Print)978-3-319-68686-8
ISBN (Electronic)978-3-319-68687-5
Publication statusPublished - 2017
SeriesLecture Notes in Computer Science


  • Conditional Linkable Ring Signatures
  • Anonymous Voting
  • Coercion Resistance
  • Mixing Phases
  • Universal Verifiability


Dive into the research topics of 'Eos a Universal Verifiable and Coercion Resistant Voting Protocol'. Together they form a unique fingerprint.

Cite this