Détails sur le séminaire

12 janvier 2010 - 14h00
Quantifying Voter-controlled Privacy
par Hugo Jonker de University of Luxembourg, SaToSS) research group

Abstract: Privacy is a necessary requirement for voting. Without privacy, voters
can be forced to vote in specific ways, and the forcing party can check
their compliance. But offering privacy does not suffice: if a voter can
reduce her privacy, an attacker can force her to do so.
We introduce the notion of choice groups as a measure of privacy, and
provide formal definitions. We illustrate how this notion can be used to
better understand privacy concerns in voting systems, and how the
notion of choice groups is formalised to quantify privacy. By combining
this with models of various degrees of voter collaboration, we can
quantify the privacy under a voter\'s control.

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