Privacy Preserving of Messages in Vehicular Ad Hoc Network

Abstract

In recent years, the growing needs for increased safety and efficiency of road transportation system have
promoted automobile manufacturers to integrate wireless communications and networking into vehicles. The VANETs
trustworthiness could be improved by both data trust and node trust. Here data means the sent and received messages by
the vehicles and nodes means the vehicles present in that particular VANET area. VANETs uses trust management
scheme which is able to detect and cope with malicious attacks and also evaluate the trustworthiness of both data and
mobile nodes in VANETs. VANET applications uses the trust management scheme to improve traffic safety, mobility, and
environmental protection with enhanced trustworthiness. AES algorithm is used in the proposed system for encrypting
the sent messages from sender vehicle to server or vice versa. The SHA3 algorithm is also used for detecting whether
sent message by the sender vehicle which is stored on the database and the same message received by the receiver
vehicles is in the original format or in the different format which can modified by the attacker. From this the RSU can
detect whether the malicious attack is found or not. These algorithms are also used for securing the privacy of the users.