A Review of Digital signature and hash function based approach for secure routing in VANET

Vehicle ad hoc networks (VANETs) have tremendous potential to enhance road and traveler safety through vehicle connectivity to highways and local roads. Vehicle ad hoc networks, also known as Vehicle to Vehicle (V2V) and Vehicle to Roadside (V2R) Unit Connectivity, have gained considerable interest in research over the past few years.Today, every vehicle manufacturing industry tries to implement intelligent technology for drivers' and passengers' safety. They use a variety of Inter-Vehicle Communication technology to boost their safety measures.Various technologies developed for the same, but security and safe message delivery are critical issues. This paper reviews the multiple algorithms available for providing secure communication of information in the network. It demonstrates the methods and limitations of the existing schemes. The challenges of providing data security, reducing data risks, and reliability in data accessibility are also presented. Finally, the proposed research work aims to provide secure routing communication by enhancing authenticity and confidentiality using Digital signature and Hash function based approach for secure routing protocol implementation.