Hybrid Cryptographic Public Key Infrastructure Framework for Scalable Manets

Mobile ad-hoc network is a collection of mobile nodes forming an ad-hoc network without the assistance of any centralized structures. These networks introduced a new art of network establishment and can be well suited for an environment where either the infrastructure is lost or where deploy an infrastructure is not very cost effective. Due to mobility of nodes there is always a problem of providing secure communication in MANETs. Most of the attacks performed by malicious nodes can be detected and defended against by the use of secure routing protocols like AODV, DSR, SEAD, SPAAR, SRP but there remain the attacks that an authenticated selfish node can perform. To overcome this problem we propose here a new protocol named as “Authenticated Route Discovery for Adhoc Networks”. To provide the secure and reliable communication we propose an algorithm to find best route for the node because it uses the process to issue the certificates to each node. This algorithm is ignoring the malicious nodes that comes in the track of real nodes. Node table of all the nodes are stored on the server and there is a range defined to make the network scalable. There all features are providing the extension to seniority based Public Key Infrastructure model.