一种基于混沌的通信保密方案的设计  

A proposal for the design of chaos-based secure communication

作　　者：何宏[1] 武艺[1] 李丽[1] 何颖[1] 

机构地区：[1]天津理工大学自动化学院,天津300384

出　　处：《天津理工大学学报》2009年第3期52-55,共4页Journal of Tianjin University of Technology

基　　金：天津市自然科学基金(05YFJMJC13100);天津市社会发展重点基金(05YFSYSF033)

摘　　要：通信保密已成为近年来信息安全领域的研究热点之一.保密通信是对欲传输的信息采取加密措施后在信道中传输,而在接收端则对收到的加密消息进行解密,使它恢复到原信息的通信方式.混沌加密是利用混沌信号的类随机特性,对明文进行加密,进行实时保密通信.本文引入一路正弦信号和方波信号,以单向耦合映象格子(OC-ML)模型作为加密手段,并应用此加密模型在信息对密钥的匹配要求很高的情况下,选取不同的密钥,以实现信息的加密和解密.In resent years, secure communication is becoming one of the researching hotspots in information safety, it is a mode of correspondence, which transmits the desired information in the channel by means of encrypting, and then decrypts them at the receiving end. Chaos encryption is to encrypt the plaintexts and utilize random-like characteristics of chaos signal to secure the real-time communication. Introducing a path of sine signal and square wave signal, taking one-way coupled map lattice （OCML） as encrypting method and under the circumstance that strict information-key match-up is requested, this encryption model selects different keys and realizes information encryption and decryption.

关 键 词：混沌 单向耦合映象格子(OCML) 保密通信 密钥 

分 类 号：O415[理学—理论物理]