A sensor enabled secure vehicular communication for emergency message dissemination using cloud services

A Vehicular Ad-hoc Network (VANET) entails smart vehicles on the road to provide communication services among nearby vehicles. It is ideated with the intention to develop applications that are versatile and efficient. Due to its dynamic nature, achieving a secure and reliable communication via VANET is a crucial challenge. Hence, varied security mechanisms are developed conventionally. But there were limitations such as increased delay, bandwidth usage, limited security, and reduced communication efficiency. In order to overcome these limitations, this paper introduces a protocol namely, Sensor Enabled Secure Vehicular Communication (SSVC) to enable a secure and reliable communication in VANET. The objectives of this paper are to reduce the latency, and to improve the communication efficiency of the network. At first, a network is formed with n number of vehicles and neighbor discovery is performed via Wireless Access in Vehicular Environment (WAVE) protocol. Further, the sensors attached with the vehicle machinery are used to obtain information such as, air pressure, temperature, and speed of the vehicle. These information are stored in a gateway and the vehicles of the network are registered in a gateway by generating a unique ID and password to each vehicle. A cloud connection is enabled to broadcast the emerging messages to all the vehicles. Also, blowfish technique is implemented to store the location information of the vehicle in the cloud in a secure manner. This improves the security level of the vehicular communication. Different performance measures are used to evaluate the results of the proposed system via simulations. Then the results are compared with the existing mechanism to prove the efficiency of the proposed SSVC mechanism. (C) 2018 Published by Elsevier Inc.