Digital Secure-Communication Using Robust Hyper-Chaotic Systems

In this paper, we propose a robust hyperchaotic system that is practically serviceable in digital securecommunication. The system consists of many coupled robust logistic maps that form a hyper-chaotic system. The system has a very large parameter space which grows along with the system precision. Moreover, it has higher degree of complexity than traditional discrete-time secure-communication systems because the former uses multiple coupled chaotic maps rather than a single one. Hence, map re-construction of the system is not feasible by current computation technology. The complexity is also flexible depending upon application requirements. The statistical analysis of the system shows that the system achieves very high secure level. Moreover, the system with high precision can be easily realized by low cost hardware.