Estonian Internet voting with anonymous credentials

Authors

İSA SERTKAYA
PETER ROENNE
PETER Y. A. RYAN

DOI

10.3906/elk-2105-197

Abstract

The Estonian Internet voting (EIV) scheme is a unique example of a long-term nation-wide, legally binding electronic voting deployment. The EIV scheme is used in parallel with standard paper-based election day voting, of course invalidating an already cast i-vote. This necessarily requires careful authentication of the eligible voters and makes the Estonian identity card solution a crucial part of the scheme, however, note that Parsovs has recently drawn attention to the security flaws found in Estonian ID-cards. In this study, we propose an e-voting scheme EIV-AC that integrates the EIV scheme with anonymous credentials based on self-sovereign identity. In addition to the EIV scheme's security properties, the EIV-AC scheme further supports participation privacy, i.e. whether or not an eligible voter has participated in an election is kept hidden - also from the election authorities.

Keywords

Electronic voting, e-voting, Estonian Internet voting, privacy, anonymous credentials, self-sovereign identity, distributed ledger technologies

First Page

420

Last Page

435

Recommended Citation

SERTKAYA, İSA; ROENNE, PETER; and RYAN, PETER Y. A. (2022) "Estonian Internet voting with anonymous credentials," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 30: No. 2, Article 7. https://doi.org/10.3906/elk-2105-197
Available at: https://journals.tubitak.gov.tr/elektrik/vol30/iss2/7