Enhancing Selective Encryption Algorithm for Secured MANET

Mobile Ad hoc Network (MANET) technology is spreading widely these days because of its independence from fixed infrastructure. For MANET, possessing highly limited resources, Symmetric key algorithms are more efficient and viable as compared to asymmetric key algorithms while transmitting messages via network due to less power consumption. Due to technological advancement MANET is getting more and more accessible to common man, but the most alarming challenge that MANET is facing is the security issue. In this paper we introduce an enhanced approach of selective encryption algorithm for achieving better data protection. First we are giving an overview of selective encryption algorithm, and proposing an enhanced selective encryption algorithm based on symmetric key. By implementing the proposed method, the process of message encryption can be made more uncertain and overhead may be reduced, thereby making the encryption procedure more efficient. We will carry out a set of simulation experiments on ns2 simulator in future to validate our proposed method.