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Attacking the Israeli e-Voting System

Yossi Oren and Avishai Wool, ציון אקדמי , September 2009. Attacking the Israeli e-Voting System. snipurl.com/e-voting. http://eprint.iacr.org/2009/422. Agenda. What’s the Israeli e-Voting Scheme? How can we break it cheaply and completely?. Not on the Agenda.

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Attacking the Israeli e-Voting System

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  1. Yossi Oren and Avishai Wool, ציון אקדמי, September 2009 Attacking the Israeli e-Voting System snipurl.com/e-voting http://eprint.iacr.org/2009/422

  2. Agenda • What’s the Israeli e-Voting Scheme? • How can we break it cheaply and completely?

  3. Not on the Agenda • Why the new scheme is legally unsound • Why our (ex-)ministers are all corrupt • The biometric database

  4. Elections • Why do we have elections? • What’s a good election scheme? • General • Free • Equal • Fair

  5. Preliminaries • Definition: An electionE is an NPelection, if… N P

  6. How Do We Vote Today? N P

  7. How Do We Vote Today? N N P

  8. How Do We Vote Today? N P

  9. How Will We Vote Tomorrow?

  10. Tomorrow’s Ballot

  11. How Will We Vote Tomorrow?

  12. How Will We Vote Tomorrow?

  13. How Will We Vote Tomorrow? N P N

  14. How Will We Vote Tomorrow? N P N

  15. Relay Attacks

  16. Attacks on the Voting System • Relay Attacks • Ballot Sniffing • Single Dissident • Ballot Stuffing • Non-Relay Attacks • Zapper • Remote Jamming • Implementation Attacks • Relay Attacks • Ballot Sniffing • Single Dissident • Ballot Stuffing • Non-Relay Attacks • Zapper • Remote Jamming • Implementation Attacks

  17. The Ballot Sniffing Attack N P N N N P P N N P P P P N N N N N N

  18. The Ballot Stuffing Attack P P N N P P P N P P P N N N P N P

  19. The Zapper Attack P P P P P P P P

  20. Implementation Attacks • Session Hijacking • Replay Attacks • Semantic Insecurity • …

  21. Conclusion • Is the new e-voting scheme a good scheme? • General • Free • Equal • Fair • Is the new e-voting scheme a good scheme? • General • Free • Equal • Fair

  22. Thank You! snipurl.com/e-voting http://eprint.iacr.org/2009/422

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