A UNIVERSAL SINGLE-AUTHORITY ELECTION SYSTEM

Privacy, voter uncoercibility, collision freedom, verifiability, and t ally correctness are essential properties of modern electronic electio n systems. None of the single-authority election systems proposed in t he literatures achieves all the above five properties. In this paper w e propose a universal single-authority election system that satisfies the five properties. In particular, the privacy of each voter is prote cted against the authority and other voters, and no voter can coerce a ny other voter into changing the value of his vote in our proposed sys tem. We also show that it is impossible for a collision-free single-au thority election system to possess the voter uncoercibility and author ity uncoercibility at the same time.