New Receipt-free Electronic Voting Scheme
This paper first gives out definition of receipt-freeness,and prove necessary and sufficient condition of receipt-freeness. Then by employing homomorphic ElGamal encryption,threshold ElGamal encryption and zero-knowledge proof,this paper designs an efficient electronic voting scheme,which satisfies universal verifiability,receipt-freeness,also eligibility,privacy and so on. Different from the previous protocols,there needs less security requirement on "trusted third party" in the new scheme,which is more practical.