IWCFTA2012 Keynote Speech IV - Research on Hyperchaotic Systems and its Applications in Encryption Technology

Summary form only given, as follows. Over the past half century, the world has witnessed the rapid development of Chaos theory. Chaos has penetrated into almost every science and engineering field, and its application has shown the tremendous vitality in many aspects. Recently, researchers have turned their close attention from the simple chaos to the chaos that have more complicated nonlinear dynamics, so as to well make use of them in engineering fields, such as the chaotic secure communication and the streaming media encryption. In particular, hyperchaos is more complex than chaos, and has stronger randomness and unpredictability. Therefore, hyperchaos has great potential applications in chaos-needed fields. In this report, some novel hyperchaos systems are proposed, the dynamical behavior analysis of some hyperchaotic system are investigated systematically. The electric circuits realization of some hyperchaotic systems are introduced, and some hyperchaos based encryption technology are given.