A Secure Communication using RSA Cryptography in Mobile Adhoc Networks

Authors: Ankush Jain, Er. Sandeep Gupta

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Abstract

Abstract: A mobile ad hoc network is a special type of wireless network in which a collection of mobile hosts with wireless network interfaces may form a temporary network. Without the aid of proper fixed infrastructure, providing secure communications is a big challenge. The strength of the security solutions very much depends on the cryptographic keys used for communication. Efficient key management is an important requirement of such networks. For networks like MANET which are basically constrained networks with minimum resources, identification of suitable asymmetric cryptosystem is a vital one. Hence an attempt has been made to improve the security during communication by maintaining minimum overhead. A RSA algorithm with DiffieHellman Key exchange will be used to achieve confidentiality during communication in MANET.

Introduction

Mobile Ad Hoc Network (MANET) is a collection of communication devices or nodes that wish to communicate without any fixed infrastructure and predetermined organization of available links. A MANET is referred to as an infrastructure less network, because the mobile nodes in the network dynamically set up paths among themselves to transmit packets. Application of MANET includes battlefield applications, search and rescue operations as well as civilian applications such as e-commerce, business, vehicular services and shopping and other networking applications. Since MANET can be deployed rapidly with relatively low cost, it becomes an attractive option for commercial uses in sensor network applications or virtual classrooms. The main challenges of MANET are Absence of infrastructure, Wireless links between nodes, Limited physical protection, Lack of centralized monitoring, Security, Routing, Quality of Services (QoS) and Reliability. Of which, Security is an important issue for Mobile ad hoc Network. Basic security requirements of MANET are Authentication, Confidentiality, Integrity, Non repudiation and availability. Security is considered as an important requirement due to the reason that many upcoming applications demand high security infrastructure. Key management is the core component of the security infrastructure.

Conclusion

This research work carried out the detailed study and analysis of AODV routing protocols and security issues and attacks in MANET theoretically and through simulation. The complete work concludes that proposed solution will implement RSA algorithm to achieve confidentiality and privacy during communication.