A Permissioned Blockchain-Based Secure Electronic Voting System Using AES Encryption, RSA Digital Signatures, and JWT Authentication

The growing use of digital technologies in recent years has made people want voting systems that are both safe and clear. Vote tampering, a lack of visibility in the process, and reliance on centralized control are all problems that come up with traditional voting methods. To get around these problems, this project comes up with a new electronic voting system called “VoteChain.” The main idea behind VoteChain is to use blockchain technology to keep track of each vote as a block in a ledger that is spread out. This method makes it very hard to change or mess with the stored data, which makes people more confident in the voting process. We built the backend of the system with Node.js and Express, and we made a simple, easy-to-use interface for voters.To keep private information safe, each vote is encrypted with the AES algorithm, which makes sure that the data stays private. JSON Web Tokens (JWT) are used to verify users so that only people who are allowed to use the system can do so. It is designed in such a way that it can function on multiple nodes, and this helps make the system more decentralized and less controlled by a single source.The other important part of the system is the consensus mechanism. In order to ensure the data is valid, the block is validated by different nodes before being added to the blockchain.There is also the inclusion of the real-time results, and this helps the user clearly see the results of the election as the votes are being counted. This is an example of the importance and potential of using blockchain technology in the development of modern websites, as is evident in the creation of the electronic voting system.