Attacking and Fixing Helios: An Analysis of Ballot Secrecy

@article{Cortier2010AttackingAF,
  title={Attacking and Fixing Helios: An Analysis of Ballot Secrecy},
  author={V{\'e}ronique Cortier and Ben Smyth},
  journal={2011 IEEE 24th Computer Security Foundations Symposium},
  year={2010},
  pages={297-311}
}
Helios 2.0 is an open-source web-based end-to-end verifiable electronic voting system, suitable for use in low-coercion environments. In this paper, we analyse ballot secrecy and discover a vulnerability which allows an adversary to compromise the privacy of voters. This vulnerability has been successfully exploited to break privacy in a mock election using the current Helios implementation. Moreover, the feasibility of an attack is considered in the context of French legislative elections and… CONTINUE READING
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