key: 2014-ballot-secrecy
type: techreport
title: Ballot secrecy with malicious bulletin boards
authors:
  - David Bernhard
  - Ben Smyth
year: 2014
month: 10
number: 2014/822
institution: Cryptology ePrint Archive
description: >-
  This paper presents a cryptographic definition of ballot secrecy in the presence of malicious
  bulletin boards.
keywords: electronic voting, e-voting, ballot secrecy, elections, election schemes, Helios
abstract: >-
  We propose a definition of ballot secrecy in the computational model of cryptography. The
  definition builds upon and strengthens earlier definitions by Bernhard <i>et al.</i>
  (ASIACRYPT'12, ESORICS'11 & ESORICS'13). The new definition is intended to ensure that ballot
  secrecy is preserved in the presence of malicious bulletin boards, whereas earlier definitions
  only consider trusted bulletin boards. It follows that the new definition prevents more attacks in
  comparison with earlier definitions.
supersededby:
  - key: 2015-ballot-secrecy
    text: extension
links:
  - file: Smyth14-ballot-secrecy.pdf
    text: Draft
    alt:
      url: https://eprint.iacr.org/2014/822
      text: Cryptology ePrint Archive version