Blockchain-based secure voting system

Elections depend on secure and transparent processes, yet traditional systems using paper or centralized electronic architectures remain vulnerable to manipulation and single point failures. This research presents a Blockchain Secure Voting System designed to ensure tamper resistance, voter privacy, and end to end verifiability using smart contracts and cryptographic techniques. The scope of this study includes the development of a commit reveal protocol on an Ethereum compatible blockchain to prevent double voting while maintaining participant anonymity throughout the entire process. Voter eligibility is managed through Merkle proof verification, ensuring that only authorized individuals participate in the election without exposing their private data. The system interface, developed using React and MetaMask, facilitates secure vote submission and revelation with sensitive data stored off chain to enhance security and efficiency. Detailed experimental results indicate that the decentralized architecture successfully handles high volumes of voter authorization and provides accurate, immutable tallying of results that can be audited by any stakeholder. The discussion evaluates the integration of cryptographic protocols and concludes that this framework offers a transparent and trust less solution for digital elections, significantly reducing the risks associated with central authority dependency and administrative bias. By leveraging distributed ledger technology, the proposed methodology creates a resilient environment for democratic participation, ensuring that each vote is recorded permanently and cannot be altered or deleted. This work establishes a foundation for scalable, secure digital governance platforms that can be adapted for various large scale institutional or national voting requirements in the future.