Implementing STV Securely in Prêt à Voter

Heather, JA (2007) Implementing STV Securely in Prêt à Voter Proceedings of the 20th IEEE Computer Security Foundations Symposium. 157 - 169.

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Abstract

Work on electronic voting systems to date has largely focused around first-past-the-post voting. However, the governments of many countries, and many non-governmental organisations, use a single transferable vote system, in which the voter needs to indicate not just a single preferred candidate but a preference ranking of (some or all of) the candidates on offer. This paper investigates the possibility of modifying Prˆet `a Voter to cope with a single transferable vote system. With its newer form involving re-encryption mixes [8], this seems at first sight to be impossible; with the older version based on RSA onions [2], the obvious approach works, but security is less than ideal; using multiple re-encryption mix onions for each vote, combined with a lazy decryption semantics, however, proves to be an elegant and efficient solution to the problem.

Item Type:	Article
Divisions:	Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User:	Melanie Hughes
Date Deposited:	06 Oct 2010 08:28
Last Modified:	23 Sep 2013 18:38
URI:	http://epubs.surrey.ac.uk/id/eprint/2403

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