Analysis on Security of a Secure Speech Communication System Based on Digital Chaos

Analysis on security of a secure speech communication system based on digital chaos is given, which is attacked through regression maps and phase space reconstructing and so on. Experimental and simulative results turn out the security of communication systems based on digital chaos is better than that based on continuous flow chaos. In the end, time-sharing maps and contemporary multi-maps mised and piecewise nonlinear maps are presented to enhancing security.