Blockchain for Secure Message Transmission in VANETs

Number of vehicles on the road is increasing day by day and as a result, the problems caused by these vehicles are also increasing. Hence, to overcome these problems related to road safety, Vehicular Ad-hoc Network (VANET) is being used which plays a major role in solving these safety issues. VANET is a network created to transmit the data using road-side entities and vehicles. To make data transmission secure and storing data such that every user can have access to it in a secured way, the use of Blockchain is preferred. Blockchain is a distributed ledger technology that can fulfill this requirement. There are many cryptographic techniques available that can be used for carrying out data transmission in VANET. This paper discusses and analyses various VANET system ideas for which researchers have carried out implementation. Still, there are many research challenges for carrying out secure transmission in VANET. This paper also proposes an approach to store the vehicular data securely by using Blockchain technology.