A new hyperchaotic secure communication scheme and its circuitry realization

In this paper, a new secure communication scheme based on the Gao hyperchaotic system is proposed. In this scheme, message signal is encrypted and is modulated as a parameter of the Gao hyperchaotic system and generated hyperchaotic signals are transmitted to the receiver. Some adaptation laws are applied to retrieve the message signal from the received hyperchaotic signals. More, two analog electronic circuits, which are composed of resistors, capacitors, operational amplifiers, analog multipliers and analog dividers, are designed to realize the proposed hyperchaotic secure communication scheme physically. Eventually, a numerical example is simulated by MATLAB software and Orcad-PSpice software, separately. Both of numerical simulation results are verified the ability and the effectiveness of introduced scheme.