Trust Based Security Model to Withstand against Black Hole and Grey Hole Attacks In

Significant features of Mobile Ad Hoc Networks make it suitable for modern military communication. These characteristics also weaken the security aspects in terms of attacks. Among the attacks, black hole and grey hole attacks are notable since they are launched internally and cannot be identified easily. The military communication requires confidential information sharing, ensuring correct identity of soldiers but offering such facility in military based MANET is difficult due to its unique nature. As providing authentication is a first form of security, in this article we propose a trust based security model to identifying black hole and grey hole nodes that weaken or collapse the success of mission in military communication. To provide authentication, we incorporate soldier’s interpersonal characteristics in terms of Stereo trust, Situational Awareness trust and soldier’s operational things in terms of first-hand information, second hand information and soldier’s current trust. Simulation results show the efficiency of our proposed model in terms of identifying black hole and grey hole nodes and its performances are compared with an existing