Attacking ballot secrecy in Helios

Helios is an open-source web-based end-to-end verifiable electronic voting system, suitable for use in low-coercion environments. In this video, we analyse ballot secrecy and discover a vulnerability which allows an adversary to compromise voters' privacy. This vulnerability has been successfully exploited to break privacy in a small election using the current Helios 3.0 implementation. Moreover, the attack is considered feasible in the context of French legislative elections and, based upon our findings, we believe it constitutes a real threat to ballot secrecy in such settings.

The full details of the attack can be found in the research paper associated with this video: http://www.bensmyth.com/publications/10-attacking-helios/

Category:

Science & Technology

Tags:

• attack
• vulnerability
• ballot secrecy
• privacy
• Helios
• electronic voting