key: 2018-voting-authentication
type: inproceedings
title: Authentication with weaker trust assumptions for voting systems
authors:
  - Elizabeth A. Quaglia
  - Ben Smyth
year: 2018
booktitle: "AFRICACRYPT'18: 10th International Conference on Cryptology in Africa"
series: LNCS
volume: "10831"
pages: 322--343
publisher: Springer
doi: 10.1007/978-3-319-89339-6_18
description: >-
  This manuscript combines signatures and non-interactive proofs to derive voting systems with their
  own authentication mechanisms, from systems using external mechanisms.
keywords: voting, verifiability, secrecy, privacy, election system, electronic voting, e-voting
abstract: >-
  Some voting systems are reliant on external authentication services. Others use cryptography to
  implement their own. We combine digital signatures and non-interactive proofs to derive a generic
  construction for voting systems with their own authentication mechanisms, from systems that rely
  on external authentication services. We prove that our construction produces systems satisfying
  ballot secrecy and election verifiability, assuming the underlying voting system does. Moreover,
  we observe that works based on similar ideas provide neither ballot secrecy nor election
  verifiability. Finally, we demonstrate applicability of our results by applying our construction
  to the Helios voting system.
links:
  - file: Smyth18-voting-with-signatures.pdf
    text: Draft
    alt:
      url: https://eprint.iacr.org/2018/222
      text: Cryptology ePrint Archive version
  - url: https://doi.org/10.1007/978-3-319-89339-6_18
    text: Official version