A Novel Secure Communication Scheme Based on Hyper-Chaos

A novel secure communication scheme is presented in this paper. A hyper-chaotic system is applied in the secure communication. Although it is three-dimensional system, it has two positive Lyapunov exponents and is a hyper-chaotic system. Because of the high Lyapunov exponent and the nonlinear spread spectrum technology, the randomness and unpredictability of the carrier signal are enhanced. Based on these, a new secure communication scheme is constructed. The simulation results show that the effect of the cipher text encryption is excellent, and the recovered information signal is very close to the original information signal. This system has the high safety performance and the wide application prospect.