Secure Route Optimization in NEMO using ECC and Stream Cipher Cryptography

Abstract

Standard IP is not suitable for internet access in mobile devices because such devices are portable and IP address keeps on getting change in wireless networks. Mobile IP is introduced to provide internet in mobile devices (i.e host mobility). There can be situation, where group of nodes (Mobile Nodes) moves from one network to another network range while accessing internet as network mobility (i.e Network Mobility (NEMO)). In NEMO, there will be gateway called Mobile Router (MR) and provides internet to all MNs and takes care about handoff for all mobile nodes. Whenever NEMO moves from home network to foreign network, it gets new address from visiting network and it has to update Home Agent (HA) regarding its address change. MR intimate about its address changes to HA through Binding Update (BU) and HA sends Binding Acknowledgement (BA) to MR as response. Various security threats arise during messages exchange and during registration between MN, MN, HA and between MN, CN (route optimization path). In this paper, we proposed security method for providing secure Route Optimization (RO) and communication between MN, MR and HA using ECC with stream cipher cryptography. The solution is simulated in NS2 and proved that our solution can protect from all standard attacks using security analysis. Comparision is done with standard Return Routability Procedure (RRP).