REVIEW ON VARIOUS SECURITY THREATS & SOLUTIONS AND NETWORK CODING BASED SECURITY APPROACH FOR VANET

Intelligent Transport Systems (ITS) are advanced applications which, without embodying intelligence as such, aim to provide innovative services relating to different modes of transport and traffic management and enable various users to be better informed and make safer, more coordinated, and 'smarter' use of transport networks. Today ITS (Intelligent Transport system) has the main focus in research of Mobile Ad-hoc Network (MANET) Communications. A Mobile Ad-hoc Network (MANET) is a self-configuring network of mobile devices called mobile nodes. Vehicular Ad-hoc Network (VANET) is a prime concept of MANET where security, privacy and reliability are major issues. To support message differentiation in VANET, IEEE 802.11p standard is incorporated in vehicular communication. In this paper, we analyze various security aspects and threats in VANET and propose the novel solutions based on network coding. Network coding is a technique in which node is allowed to combine and encode one or more input packets into encoded packets instead of directly forwarding them over finite field. In this paper, we also examine the tradeoffs of the proposed solutions along with the necessary solutions to overcome them.