A note on replay attacks that violate privacy in electronic voting schemes

This paper demonstrates replay attacks that violate privacy in the e-voting protocols by Sako & Kilian and Schoenmakers.

Ben Smyth & Véronique Cortier (2011) A note on replay attacks that violate privacy in electronic voting schemes. Technical Report RR-7643, INRIA.

Abstract

In our previous work, we have shown that the Helios 2.0 electronic voting protocol does not satisfy ballot independence and exploit this weakness to violate privacy; in particular, the Helios scheme is shown to be vulnerable to a replay attack. In this note we examine two further electronic voting protocols - namely, the schemes by Sako & Kilian and Schoenmakers - that are known not to satisfy ballot independence and demonstrate replay attacks that violate privacy.

$ curl -s https://publications.bensmyth.com/files/Smyth11-attacking-ballot-secrecy-in-electronic-voting.bib | cat
@techreport{Smyth11-attacking-ballot-secrecy-in-electronic-voting,
  title = {{A note on replay attacks that violate privacy in electronic voting schemes}},
  year = {2011}, author = {Ben Smyth and Véronique Cortier},
  url = {./},
  url-pdf = {./files/attacking-electronic-voting.pdf},
  url-bib = {./files/attacking-ballot-secrecy-in-electronic-voting.bib},
  url-yaml = {./files/attacking-ballot-secrecy-in-electronic-voting.yml},
  url-md = {./files/attacking-electronic-voting.md}
}