A Formal Taxonomy of Privacy in Voting Protocols

Jannik Dreier 1 Pascal Lafourcade 2 Yassine Lakhnech 3
1 CASSIS - Combination of approaches to the security of infinite states systems
FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174), Inria Nancy - Grand Est, LORIA - FM - Department of Formal Methods
Abstract : Privacy is one of the main issues in electronic voting. We propose a family of symbolic privacy notions that allows to assess the level of privacy ensured by a voting protocol. Our definitions are applicable to protocols featuring multiple votes per voter and special attack scenarios such as vote-copying or forced abstention. Finally we employ our definitions on several existing voting protocols to show that our model allows to compare different types of protocols based on different techniques, and is suitable for automated verification using existing tools.
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Jannik Dreier, Pascal Lafourcade, Yassine Lakhnech. A Formal Taxonomy of Privacy in Voting Protocols. First IEEE International Workshop on Security and Forensics in Communication Systems (ICC'12 WS - SFCS), Jun 2012, Ottawa, Canada. ⟨10.1109/ICC.2012.6364938⟩. ⟨hal-01338064⟩

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