A Blockchain-Based Voting System Using Zero-Knowledge Proofs for Enhanced Privacy and Verifiability

Secure, verifiable, and transparent elections are the most crucial to democratic procedures. Blockchain technology can be utilized as a potential solution for tamper-resistant and decentralized voting schemes. The utilization of blockchain technology in e-voting systems is of significant interest because of its capacity to improve transparency, security, and integrity in digital voting. However, privacy and voter anonymity are imperative concerns. This paper presents a novel blockchain voting system that preserves vote integrity and voter anonymity by using zero-knowledge proofs (ZKPs). In this paper, we propose the system architecture, cryptographic primitives, implementation strategies, and compare security and performance to conventional e-voting systems. The new paradigm preserves voter anonymity, correctness of votes, and ensures end-to-end verifiability. Further, the practical implementation of the proposed scheme is provided to measure the performance of important parameter, like, total votes cast, total gas used, number of mined blocks, transactions per seconds, etc.