ACAC Seminar Abstract

ACAC Seminar Abstract

ACAC Seminars

ACAC Seminar Abstract

E-voting: what cryptographers overlooked for 20 years

Speaker: Yvo Desmedt
Date, Time: Wed, 05 Jan 2011 15:00

The lecture starts by analyzing a state of the art voting system, Helios 2.0. Helios 2.0 is a web-based open-audit voting system designed using state of the art web technologies and advanced cryptographic techniques to provide integrity of ballots and voter secrecy in an insecure Internet environment. As we show, the cryptographic techniques used in Helios 2.0 can easily be bypassed by exploiting well known web browser vulnerabilities.

We reflect back on the 30 years research on e-voting by the cryptographic community, to conclude that only recently have researchers started to take into account the fact that the machine used to vote may be hacked. A first solution to this problem was presented by Chaum. We analyze the weaknesses of his approach. We then propose new solutions that avoid Chaum's weaknesses.

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