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A formal framework for modelling coercion resistance and receipt freeness

Heather, James and Schneider, Steve A. (2011) A formal framework for modelling coercion resistance and receipt freeness Technical Report. Department of Computing, University of Surrey.

coercion-csp-tech-report.pdf - Published Version

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Coercion resistance and receipt freeness are critical properties for any voting system. However, many definitions of these properties have been proposed, with varying levels of formality, and there has been little attempt to tie these definitions together or identify relations between them.

We give here a general framework for specifying different coercion resistance and receipt freeness properties using the process algebra CSP. The framework is general enough to accommodate a wide range of definitions, including dealing with randomization attacks and forced abstention.

We provide models of some simple voting systems, and show how the framework can be used to analyze these models under different definitions of coercion resistance and receipt freeness. Our formalisation highlights the variation between the definitions in the literature.

Item Type: Monograph (Technical Report)
Divisions : Faculty of Engineering and Physical Sciences > Computing Science
Authors :
Schneider, Steve
Date : 28 March 2011
Depositing User : Christina Daoutis
Date Deposited : 30 Mar 2011 13:30
Last Modified : 23 Sep 2013 18:40

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