International Association for Cryptologic Research

International Association
for Cryptologic Research


Paper: Merging Pret-a-Voter and PunchScan

Jeroen van de Graaf
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Abstract: We describe a variation of the Pret-a-Voter voting protocol that keeps the same ballot layout but borrows and slightly modifies the underlying cryptographic primitives from Punchscan, which is based on bit commitments. By using unconditionally hiding bit commitments, our protocol obtains unconditional privacy. We suggest a way to make cheating on the computational binding bit commitments impossible under assumptions that seem plausible for large-scale elections. Also we show ways to have several races on the Pret-a-Voter ballot, showing that with respect to ballot layout the protocols are almost identical.
  title={Merging Pret-a-Voter and PunchScan},
  booktitle={IACR Eprint archive},
  keywords={voting, elections},
  note={Submitted to LATIN 2008 13803 received 10 Jul 2007, last revised 17 Oct 2007},
  author={Jeroen van de Graaf},