A Practical Privacy Preserving E-Voting Protocol Using Dynamic Ballots

We describe a practical e-voting protocol which guarantees e-voting protocol requirements: eligibility, privacy, accuracy, fairness, receipt-freeness, uncoercibility, robustness and verifiability. Unlike existing blind signature based protocols, in which the authority blindly signs ballot or part of ballot, the authority in our protocol blindly signs voter’s pseudo identity. Hereafter, voter becomes ”Pseudo Voter” and uses this pseudo identity for further steps. Instead of pre-defined static ballots, the order of candidates in the ballots are dynamically created and change for each voter. So, it is called as ”Dynamic Ballot”. Both dynamic ballot and pseudo voter identity is used in order to possess the strong property of voter privacy and fairness and to solve blind signature based protocols’ problems: voter abstention and more voter involvement.