A privacy-preserving, decentralized and functional Bitcoin e-voting protocol
This addresses secure and private voting in decentralized systems, but it appears incremental as it builds on existing Bitcoin-based protocols.
The paper tackles the problem of creating a decentralized and privacy-preserving e-voting protocol using Bitcoin, resulting in a method that reduces the number of transactions and enhances functionality compared to existing schemes.
Bitcoin, as a decentralized digital currency, has caused extensive research interest. There are many studies based on related protocols on Bitcoin, Bitcoin-based voting protocols also received attention in related literature. In this paper, we propose a Bitcoin-based decentralized privacy-preserving voting mechanism. It is assumed that there are n voters and m candidates. The candidate who obtains t ballots can get x Bitcoins from each voter, namely nx Bitcoins in total. We use a shuffling mechanism to protect voter's voting privacy, at the same time, decentralized threshold signatures were used to guarantee security and assign voting rights. The protocol can achieve correctness, decentralization and privacy-preservings. By contrast with other schemes, our protocol has a smaller number of transactions and can achieve a more functional voting method.