A secure communication scheme based on the phase synchronization of chaotic systems.
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.
Chen
J Y
JY
Department of Computer Engineering and Information Technology, City University of Hong Kong, Hong Kong, China.
Wong
K W
KW
Cheng
L M
LM
Shuai
J W
JW