A secure communication scheme based on the phase synchronization of chaotic systems

作者：Jiale Chen, Ka Wai Wong, L.M. Cheng, J. W. Shuai · 发表于：Chaos An Interdisciplinary Journal of Nonlinear Science · 年份：2003 · DOI：10.1063/1.1564934 · 被引用次数：65 · 研究领域：Chaos control and synchronization、Nonlinear Dynamics and Pattern Formation、Fractal and DNA sequence analysis

Phase synchronization of chaotic systems with both weak and strong couplings has recently been investigated extensively. Similar to complete synchronization, this type of synchronization can also be applied in secure communications. We develop a digital secure communication scheme that utilizes the instantaneous phase as the signal transmitted from the drive to the response subsystems. Simulation results show that the scheme is difficult to be broken by some traditional attacks. Moreover, it operates with a weak positive conditional Lyapunov exponent in the response subsystem.