Secured on Demand Multi-Path Routing in Trusted Environment Based on Public Key Cryptography

An ad-hoc network is a collection of mobile nodes that establish and maintain connections purely over wireless connections. These networks do not have the infrastructure of a wired network. Because the nodes are mobile, links are continuously established and broken. An ad-hoc routing protocol must therefore provide for dynamic routing, where new paths can be created as soon as old paths become obsolete. The problem with many proposed routing protocols for ad-hoc networks is that these protocols have serious vulnerabilities to security attacks. Most recent ad-hoc network research has focused on providing routing services without considering major security issues. In this paper a new protocol is proposed to provide secure routing for ad-hoc networks that is based on public key cryptography. The proposed protocol is implemented using ASIM simulator.