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What Did I Really Vote For? - On the Usability of Verifiable E-Voting Schemes

Marky, Karola and Kulyk, Oksana and Renaud, Karen and Volkamer, Melanie (2018):
What Did I Really Vote For? - On the Usability of Verifiable E-Voting Schemes.
In: Conference on Human Factors in Computing Systems (CHI), ACM, Montreal, QC, Canada, DOI: 10.1145/3173574.3173750,
[Online-Edition: https://dl.acm.org/citation.cfm?id=3173750],
[Conference or Workshop Item]

Abstract

E-voting has been embraced by a number of countries, delivering benefits in terms of efficiency and accessibility. End-to-end verifiable e-voting schemes facilitate verification of the integrity of individual votes during the election process. In particular, methods for cast-as-intended verification enable voters to confirm that their cast votes have not been manipulated by the voting client. A well-known technique for effecting cast-as-intended verification is the Benaloh Challenge. The usability of this challenge is crucial because voters have to be actively engaged in the verification process. In this paper, we report on a usability evaluation of three different approaches of the Benaloh Challenge in the remote e-voting context. We performed a comparative user study with 95 participants. We conclude with a recommendation for which approaches should be provided to afford verification in real-world elections and suggest usability improvements.

Item Type: Conference or Workshop Item
Erschienen: 2018
Creators: Marky, Karola and Kulyk, Oksana and Renaud, Karen and Volkamer, Melanie
Title: What Did I Really Vote For? - On the Usability of Verifiable E-Voting Schemes
Language: English
Abstract:

E-voting has been embraced by a number of countries, delivering benefits in terms of efficiency and accessibility. End-to-end verifiable e-voting schemes facilitate verification of the integrity of individual votes during the election process. In particular, methods for cast-as-intended verification enable voters to confirm that their cast votes have not been manipulated by the voting client. A well-known technique for effecting cast-as-intended verification is the Benaloh Challenge. The usability of this challenge is crucial because voters have to be actively engaged in the verification process. In this paper, we report on a usability evaluation of three different approaches of the Benaloh Challenge in the remote e-voting context. We performed a comparative user study with 95 participants. We conclude with a recommendation for which approaches should be provided to afford verification in real-world elections and suggest usability improvements.

Journal or Publication Title: Conference on Human Factors in Computing Systems (CHI '18)
Title of Book: Conference on Human Factors in Computing Systems (CHI)
Publisher: ACM
Uncontrolled Keywords: E-voting, End-to-end verifiability, Cast-as-intended Verifiability, Usability Evaluation, Benaloh Challenge
Divisions: 20 Department of Computer Science
20 Department of Computer Science > SECUSO - Security, Usability and Society
Event Location: Montreal, QC, Canada
Date Deposited: 06 Feb 2018 15:21
DOI: 10.1145/3173574.3173750
Official URL: https://dl.acm.org/citation.cfm?id=3173750
Additional Information:

ISBN: 978-1-4503-5620-6 / ACMID: 3173750

Identification Number: TUD-CS-2018-0027
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