Prevention of Black Hole Attack in MANET

The reliability in the transmission of data among the nodes will always degrade with the dynamic nature of Manet. Due to lack of security the manet is not protected against the attacks. Black Hole attack is the most common attack experienced by the Manet. To prevent the black hole attack, this paper addresses the security oriented solution to authenticate the routes selected during the route discovery process using the digital certificates. During the route discovery itself the digital certificate authentication avoids the black hole node. This methodology is implemented on AOMDV protocol.