Design and Implementation of Blockchain-based Anonymous Electronic Voting System

This article aims to design and implement an anonymous electronic voting system based on blockchain. The system solves the problem of privacy protection by applying one-time ring signatures and hidden address, which were presented by Nicolas van Saberhagen in his CryptoNote. Ring signature can make the verifier only verify the legitimacy of the vote and cannot infer who sent the vote, which protects the privacy of the voter. The key image generated by one-time ring signature is used to eliminate the problem of repeated voting and ensure the principle of one person, one vote. The hidden address technology generates an anonymous address through the candidate's public key and thus encrypts the content and direction of the ballot, and only after the election is over can the candidate disclose his private key to verify the specific candidate. In addition, blockchain technology solves the problem of fairness and impartiality, and the nature of blockchain itself makes each ballot transparent and open as well as tamper-proof during the voting process. Finally, the Hyperledger Fabric platform was used and smart contracts were written in Go language, and the RuoYi framework was used for the front and back-end design of the system to implement the described voting system.