Fully auditable electronic secret-ballot elections

"What could be easier than counting a bunch of votes!" is a natural thought when one first thinks of the problem of electronic voting. It does not seem very hard either to build an Internet-based system which enables people to vote conveniently from their PCs, WAP phones, or other personal devices. The problem gets much more difficult, however, if one wants to address ballot secrecy in a serious way. The challenge then is to guarantee voters’ privacy and integrity of the election result at the same time. In this paper we show how special-purpose cryptographic protocols help to achieve this goal.