An Improved Secure and Efficient E-Voting Scheme Based on Blockchain Systems

With the rapid development of the Internet of Things (IoT) and blockchain technology, e-voting has been widely used in all aspects of people’s lives. However, there is a common problem in the vast majority of e-voting solutions: the inability to complete vote counting without a trusted third-party organization, which may lead to security risks. When designing an e-voting system, ensuring the trustworthiness of the voting results as well as protecting the privacy of the voters are always the most important issues. To address this challenge, we propose improved secure and efficient (ISE)-Voting, an ISE e-voting scheme for blockchain-assisted IoT devices. Our proposed ISE-Voting achieves voter privacy anonymity, distributed vote counting, and public verifiability of counting results in e-voting systems by using secret-sharing and identity-based ring signatures in the blockchain system. In addition, we introduce a cloud service provider (CSP), which is used to share the computational pressure of the system and assist ISE-Voting to complete the final counting. According to the experimental analysis and results, our scheme is not only able to meet the basic security goals of satisfying correctness, anonymity, unforgeability and verifiability, and provide 128-bit identity security for the voters in the post-quantum environment. Moreover, it can complete the distributed counting of voters’ ballots within an effective time, which provides a feasible solution for future e-voting systems.