BBB-Voting: 1-out-of-k Blockchain-Based Boardroom Voting
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Voting is a means to agree on a collective decision based on available choices (e.g., candidates), where participants (voters) agree to abide by their outcome. To improve trust in voting, decentralized solutions based on a blockchain can be employed. A blockchain ensures that all entities in the voting system have the same view of the actions made by others due to the immutable log. Existing blockchain-based boardroom voting implementation called Open Voting Network (OVN) supports only two candidates. We present a blockchain-based approach for decentralized 1-out-of-k voting and provide a cost-optimized implementation using Ethereum. We resolve the problem of stalling participants by a fault recovery protocol. Finally, we compare our implementation with OVN and show that our work decreases the costs for voters by 13.5
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