Selections: internet voting with over-the-shoulder coercion-resistance

  • Authors:
  • Jeremy Clark;Urs Hengartner

  • Affiliations:
  • University of Waterloo, Canada;University of Waterloo, Canada

  • Venue:
  • FC'11 Proceedings of the 15th international conference on Financial Cryptography and Data Security
  • Year:
  • 2011

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Abstract

We present Selections, a new cryptographic voting protocol that is end-to-end verifiable and suitable for Internet voting. After a one-time in-person registration, voters can cast ballots in an arbitrary number of elections. We say a system provides over-the-shoulder coercion-resistance if a voter can undetectably avoid complying with an adversary that is present during the vote casting process. Our system is the first in the literature to offer this property without the voter having to anticipate coercion and precompute values. Instead, a voter can employ a panic password. We prove that Selections is coercion-resistant against a non-adaptive adversary.