A formal model for the requirement of verifiability in electronic voting by means of a bulletin board

  • Authors:
  • Katharina Bräunlich;Rüdiger Grimm

  • Affiliations:
  • Department of Computer Science, University of Koblenz-Landau, Koblenz, Germany;Department of Computer Science, University of Koblenz-Landau, Koblenz, Germany

  • Venue:
  • Vote-ID'13 Proceedings of the 4th international conference on E-Voting and Identity
  • Year:
  • 2013

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Abstract

Trust in an electronic voting system is an essential premise for electronic elections. Trust in a system can be strengthened by controlling its correct functioning. There are two ways to assure the correct functioning of a system. Firstly, before using a system, neutral experts can evaluate and certify the security of its implementation. Secondly, while using the system, its users can verify its outcome by appropriate verification tools. Verifiability is a specific security function, which is subject to certification itself. This paper presents a formal security requirements model for the verifiability of electronic voting systems by means of a Bulletin Board that publishes all important communication steps without violating the secrecy of voting.