一种可逆非线性混沌保密通信系统研究

Researching on Performances of an Invertible Nonlinear Chaotic Communication System

该文分析了现有各类混沌保密通信技术的基本原理及其特点,并分别介绍了一些有实用价值的典型结构, 比较了它们各自在实际应用中的性能和不足。在此基础上,提出了一种基于混沌驱动的零动态可逆离散非线性混沌通信系统。重点模拟分析了该系统的安全可靠性,防信息攻击能力,以及抗信道噪声干扰性能等,并指出了系统同步的必要性和解决途径。

All the existing chaotic communication techniques are simply classified into two catalogues, their implementation principles and characteristics are outlined, the corresponding valuable realizing schemes are introduced for comparing their advantages and disadvantages in application. Then a zero dynamical nonlinear invertible communication scheme with chaos driving is proposed. Its performances, such as encryption security, defending ciphertext attack, noise robust, etc. are extensively analysed by simulation. Its necessity to synchronization for application and the way to solve the problem are also discussed.