Anonymous one-time broadcast using non-interactive dining cryptographer nets with applications to voting

  • Authors:
  • Jeroen van de Graaf

  • Affiliations:
  • Departamento de Computação, Universidade Federal de Ouro Preto, Ouro Preto, (MG), Brazil

  • Venue:
  • Towards Trustworthy Elections
  • Year:
  • 2010

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Abstract

All voting protocols proposed so far, with the exception of a few, have the property that the privacy of the ballot is only computational. In this paper we outline a new and conceptually simple approach allowing us to construct a protocol in which the privacy of the ballot is unconditional. Our basic idea is to modify the protocol of Fujioka, Okamoto and Ohta[1], which uses blind signatures so that the voter can obtain a valid ballot. However, instead of using a MIX net, we use a new broadcast protocol for anonymously publishing the vote, a Non-Interactive variation of the Dining Cryptographer Net.