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Yossi Oren and Avishai Wool, ציון אקדמי, September 2009 snipurl.com/e-voting.

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Presentation on theme: "Yossi Oren and Avishai Wool, ציון אקדמי, September 2009 snipurl.com/e-voting."— Presentation transcript:

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

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

3  Why the new scheme is legally unsound  Why our (ex-)ministers are all corrupt  The biometric database

4  Why do we have elections?  What’s a good election scheme?  General  Free  Equal  Fair

5  Definition: An election E is an NP election, if… NP

6 N P

7 NN P

8 N P

9

10

11

12

13 NP

14 NP

15

16  Relay Attacks  Ballot Sniffing  Single Dissident  Ballot Stuffing  Non-Relay Attacks  Zapper  Remote Jamming  Implementation Attacks

17 PN N N PP N N NP PN N N PP N N

18 PN N N PP N N NP P P P N P P

19 P PP P P P P P

20  Session Hijacking  Replay Attacks  Semantic Insecurity  …

21  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 http://eprint.iacr.org/2009/422 snipurl.com/e-voting


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