A privacy attack on the Swiss Post e-voting system

Véronique Cortier, Alexandre Debant, and Pierrick Gaudry. A privacy attack on the Swiss Post e-voting system. In Real World Crypto Symposium (RWC'22), Amsterdam, Netherlands, 2022.

Download

[PDF] 

Abstract

The SwissPost e-voting system is currently proposed under the scrutiny of the community, before being deployed in 2022 for political elections in several Swiss cantons. We explain how real world constraints led to shortcomings that allowed a privacy attack to be mounted. More precisely, dishonest authorities can learn the vote of several voters of their choice, without being detected, even when the requested threshold of honest authorities act as prescribed.

BibTeX

@InProceedings{SwissPost-RWC22,
  author =	 {V\'eronique Cortier and Alexandre Debant and
                  Pierrick Gaudry},
  title =	 {{A privacy attack on the Swiss Post e-voting
                  system}},
  booktitle =	 {Real World Crypto Symposium (RWC'22)},
  year =	 2022,
  organization = {IACR},
  address =	 {Amsterdam, Netherlands},
  abstract =	 {The SwissPost e-voting system is currently proposed
                  under the scrutiny of the community, before being
                  deployed in 2022 for political elections in several
                  Swiss cantons. We explain how real world constraints
                  led to shortcomings that allowed a privacy attack to
                  be mounted. More precisely, dishonest authorities
                  can learn the vote of several voters of their
                  choice, without being detected, even when the
                  requested threshold of honest authorities act as
                  prescribed.},
                  ={https://hal.inria.fr/hal-03446801/file/rwc.pdf},
}