Receipt-Free Electronic Voting Based on Semi-Trusted Model
Xiao Chen · Chinese Journal of Computers · 2003
A receipt-free electronic voting scheme is proposed by using the techniques of homomorphic ElGamal encryption, threshold encryption and proof of knowledge. It guarantees privacy, universal verifiability, and fairness. Different from the previous protocols, the proposed scheme is based on semi-trusted model, i.e., voters need not to the so-called trusted third party entirely. Firstly the definition of trust is given, and then it is proved that the proposed scheme guarantees receipt-free on semi-trusted model which can prevent the crimes of voting such as buying, coercible vote etc.