Votinbox - a voting system based on smart cards

The complexity of voting procedures, and their variations from country to country, make it challenging to design a secure electronic voting system. In most of the usual proposals, the security of the system relies mainly on a blackbox voting machine. Meanwhile, the most advanced proposals base their security arguments on (complicated) cryptographic protocols, e.g. blind signatures or homomorphic schemes. At Cardis 2004, Canard and Traoré [4] presented cryptographic primitives specially aimed at providing anonymous services using smartcards. Among the proposed primitives is a new list signature scheme. Such schemes are specially suitable for electronic voting, as they provide specific properties such as multiple vote detection. Moreover, unlike blind signatures, they do not require the participation of a signing authority during the ballot creation process. The purpose of this paper is to present the Votinbox electronic voting system, whose security relies on a tamper-resistant smart card embedding several cryptographic protocols, including list signatures.