Design and FPGA Implementation of Lorenz Chaotic System for Information Security Issues

Applied Mathematical Sciences, Vol. 7, 2013, no. 5, 237 - 246 Design and FPGA Implementation of Lorenz Chaotic System for Information Security Issues 1 2 3 4 Lahcene Merah , Adda Ali-Pacha , Naima Hadj Said and Mustafa Mamat 1, 2 Department of Electronics 3Department of Computer Sciences University of Science and Technology of Oran (USTO) BP 1505 El M’Naouer Oran 31036, Algeria a.alipacha@gmail.com 4Department of Mathematics, Universiti Malaysia Terengganu 21300 K.Terengganu, Malaysia Abstract. Taking the Lorenz chaotic system as an example, FPGA (Field Programmable Gate Array) technology is applied to obtain chaotic sequence in this paper, the Xilinx system generator technology was used for the conception of Lorenz chaotic system and generating the VHDL code. This code is used again to configuring the FPGA. Experiment shows the output sequence of the designed system has a good result. The generated chaotic sequence may be used for information security in the modern communication field. Keywords: FPGA, Lorenz chaotic attractor, chaos encryption 1. Introduction In the recent years, the revolution of media exchange, the high debit and quantity of information through the open internet, satellites, mobiles and any kind of network, makes easy to access the content of this information.