Implementation of VANET Security using SHA3- 256 for Blockchain with Digital Signature in Python

Abstract

Vehicular ad hoc networks are quickly gaining popularity and are one of the most researched areas of wireless networks as they enable intelligent transportation systems that will provide various key services, including road safety, traffic management, and infotainment, with the goal of enhancing a driver's productivity and quality of life for all, either as commuters or as travelers. However, while these services offer significant benefits, they also require integration through robust and reliable communications of vehicles, which can only be achieved if security is properly taken into account. Public key infrastructure and cryptography previously implemented for controlling access are not a cost-efficient or scalable solution.
A new direction has been developed by the relevant norms, the blockchain. This is a public decentralized database based on Bitcoin. Blockchain consists of blocks in sequential order, in which calls of transactions are coupled in digital form to a hash function to form a chain. Then, calls in blocks are digitally signed to ensure that transaction integrity is maintained, and transaction contents are both checked and approved by the nodes. As regards applications for traffic ad hoc networks, smart contracts can offer an alternative path to increase system automation. In blockchain, there are several security areas, such as digital signature, integrity of the insecure distribution channel, and steganography, which is one of the main cryptographic techniques used to address VANET security problems. The main objective of this study is to evaluate VANET safety and how the security of blockchain is improved. Ad hoc network techniques and the SHA3-256 algorithm were developed to enhance security called Digital signature-based quantum secret key algorithm cryptograph and were used to improve blockchain security. The proposed approach can be useful for securing a more-safe system, including related security applications for vehicular ad hoc networks. The security discussed is not limited to VANET and blockchain, but also to ad hoc network communication vehicle to vehicle and vehicle to infrastructure. In addition, this poses a number of VANET challenges in a future direction.