Intelligent Soft Computing Based Cryptographic Technique Using Chaos Synchronization for Wireless Communication (CSCT)

Abstract

In this paper a novel intelligent soft computing based cryptographic technique based on synchronization of two chaotic systems (CSCT) between sender and receiver has been proposed to generate session key using Pecora and Caroll (PC) method. Chaotic system has some unique features like sensitive to initial conditions, topologically mixing; and dense periodic orbits. By nature, the Lorenz system is very sensitive to initial conditions meaning that the error between attacker and receiver is going to grow exponentially if there is a very slight difference between their initial conditions. All these features make chaotic system as good alternatives for session key generation. In the proposed CSCT few parameters ( �, b , r , x1 ,y 2 and z 2 ) are being exchanged between sender and receiver. Some of the parameter which takes major roles to form the session key does not get transmitted via public channel, sender keeps these parameters secret. This way of handling parameter passing mechanism prevents any kind of attacks during exchange of parameters like sniffing, spoofing or phishing.