Blockchain-based Framework for Security and Privacy Solutions in VANET

The use of blockchain technology to strengthen the privacy and security of vehicle ad hoc networks has recently garnered much attention. A private and secure network for vehicular communication can be set up by taking advantage of Blockchain's decentralized and tamper-proof properties. One of the key advantages of integrating Blockchain with VANET is creating an open and immutable record of transactions. This function guarantees no one can tamper with the securely recorded data exchanges and vehicle communications. In addition, an extra layer of protection for VANET communication can be achieved by authenticating and encrypting messages using cryptographic techniques within the blockchain framework. Smart contracts, which execute themselves according to predetermined rules written into code, are another innovation that emerged from blockchain technology. VANET's security and privacy policies can be automated and enforced, making the network even more trustworthy and reliable by using this feature. By adopting a blockchain-based architecture, VANET can enhance the privacy, security, and trust between vehicles and infrastructure parts. In this paper, we look at blockchain technology, its advantages and disadvantages, and how it could solve the privacy and security issues in VANET.