现代信息安全与混沌保密通信应用研究的进展

本文首先概述现代保密通信及网络信息安全的主要概念和发展状况，对迄今发展的几种现代著名密码算法进行分析比较；然后综述国际上已经提出的一些典型的混沌保密通信方案及其应用研究的新发展。从通信角度，为了向实用化方向发展，我们将混沌通信研究中常用的混沌遮掩、混沌开关、混沌调制三种主要技术方案，按照实际应用需要，重新把它们分类为三种主要形式，即模-模通信、模-数-模通信和数-数通信，这样便于实际应用，易于借鉴已有知识分析各类通信的性能优劣。在评述性分析了当前国际上三种混沌保密通信方式的典型方案及其进展后，最后简要总结混沌保密通信的一些关键技术，指出今后值得研究的方向，并展望了混沌通信的应用前景。

MODERN INFORMATION SAFETY AND ADVANCES IN APPLICATION RESEARCH OF CHAOS-BASED SECURITY COMMUNICATION

This article offers an overview of modern network information safety and chaos-based security communication. Some main basic concepts and the states of methodology development for contemporary networks safety and security communication are introduced at first. Three main techniques for chaos-based communication, including chaotic hiding, chaotic switching (shift keying)and chaotic modulating, are briefely discussed. In order to be convenience and comparison chaotic communication with conventional communication for practical applications, they are classified into three categories: analog-analog communication, analog-digit-analog Communication, digit-digit communication. Several possible candidate schems for current chaotic communication are described, reviewed and commented. These shemes have shown their feasible and are being in possible mature state of development for applications. To that end, the concerned issues of research and techniques development for future applications are addressed finally.