Hybridization of Routing and Tolerant Security Mechanism for WANET

Wireless Ad hoc Network is a network where there is no existence of wireless infrastructure for networking. Thus this kind of network have limited homogenous feature. In sensor networks, building efficient and scalable protocols is a very challenging task due to the limited resources and the high scale and dynamics uses the GRA (Geographic Routing Algorithm) to get this location information. With the availability of GRA, the mobile hosts knows there physical location. One main challenge in design of these networks is their vulnerability to security attacks. We identify the new challenges and opportunities posed by this new networking environment and explore new approaches to secure its communication. We use replication and new cryptographic schemes, such as threshold cryptography, to build a highly secure and highly available key management service, which forms the core of our security framework. In this paper main focus is on time, location, power control and security. In order to support time, location, power control and security of critical applications, we present DFSRTS, (Depth First Search Based Routing-Tolerant Security Mechanism).