Chaos based improvement of the security of ZigBee and Wi-Fi networks used for industrial controls

Wi-Fi and Zigbee networks are widely deployed in wireless industrial control and monitoring applications. The security protocols used in these wireless networks rely on stream cipher to encrypt data before being transmitted. These protocols are secure but they don´t respect the real-time requirement of industrial control. Chaotic systems are able to produce stream cipher with higher randomicity, which looks like stochastic noise. Based on two perturbed piecewise linear chaotic map (PWLCM), we propose a new high speed chaotic cryptographic scheme. It requires a little memory capacity, and also appears to be very secure. The proposed generator is easily realized and succeeds all the statistical tests. In this paper, we will explain briefly the design of our proposed generator and show its efficiency through encryption tests.