The large scale electronic voting scheme based on undeniable multi-signature scheme

Abstract

In undeniable multi-signature scheme, a multi-signature can not be verified and disavowed without cooperation of all signers. The proposed voting scheme consists of four stages which are preparation, registration, voting and counting stages. Existing voting schemes assume that the voting center is trustful and untraceable channels are exist between voters and the voting center. To minimize the role of the voting center, the proposed scheme let multiple administrators to manage voting protocol. It also provides fair voting and counting stages. In voting and counting stages, a ballot can not be opened without help of all administrators. Before counting the ballot, they must confirm the undeniable multi-signature on it. Due to the undeniable property of the proposed scheme, voters can change their mind to whom they vote in registration stage. They can restart voting process by simply rejecting signature confirmation protocol launched by the voting manager. © Springer-Verlag Berlin Heidelberg 2005.