The research of applying chaos theory to speech communicating encryption system

Abstract

This article reviews the chaos voice encryption based on the existing results of chaos theory. This article concentrates on the chaos encryption of speech, putting forward the idea which is applied to speech data that combine chaos type library with data segmentation. In this paper, it analyzes characteristics of the algorism. It proves that this algorism has characteristics such as large key space, good diffusibility, and strong randomness of cipher text. And, this algorism has the ability to defend existing plaintext attack and reconstruction attack based on chaotic model © 2011 Springer-Verlag Berlin Heidelberg.