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Increasing security without decreasing usability: A comparison of various verifiable voting systems

Volkamer, Melanie 1; Kulyk, Oksana; Ludwig, Jonas 1; Fuhrberg, Niklas 1
1 Institut für Angewandte Informatik und Formale Beschreibungsverfahren (AIFB), Karlsruher Institut für Technologie (KIT)


Electronic voting researchers advocate for verifiable voting schemes to maximise election integrity. In order to maximise vote secrecy, so-called code-voting approaches were proposed. Both verifiability and code voting require voters to expend additional effort during vote casting. Verifiability has been used in actual elections, but this is not the case for code voting due to usability concerns. There is little evidence from empirical studies attesting to its usability. Our main contribution is to extend an existing verifiable voting system (used for real world elections) with a code-voting approach to improve the system's security properties. We minimise voter effort as corresponding QR codes are scanned instead of requiring manual code entry. We conducted a user study to evaluate the general usability of this proposal as well as its manipulation-detection efficacy. In particular, we found that extending the considered verifiable voting systems with code-voting approaches to enhance vote secrecy is feasible because we could not observe a significant decrease in general usability while manipulation detection improved significantly.

Zitationen: 4
Zugehörige Institution(en) am KIT Institut für Angewandte Informatik und Formale Beschreibungsverfahren (AIFB)
Kompetenzzentrum für angewandte Sicherheitstechnologie (KASTEL)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2022
Sprache Englisch
Identifikator ISBN: 978-1-939133-30-4
KITopen-ID: 1000150174
HGF-Programm 46.23.01 (POF IV, LK 01) Methods for Engineering Secure Systems
Erschienen in Proceedings of the 18th Symposium on Usable Privacy and Security (SOUPS 2022), Boston, MA, August 8-9, 2022
Veranstaltung 18th/31st Symposium on Usable Privacy and Security / Co-located with USENIX Security (SOUPS 2022), Online, 07.08.2022 – 09.08.2022
Verlag USENIX Association
Seiten 233–252
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