混沌保密通信的若干问题及混沌加密新方案

Discussion on Chaotic Secure Communication and New Schemes of Chaotic Encryption

针对国际上在混沌的定义、基本特性以及混沌保密通信原理等方面的一些不同理解 ,进行了较深入的讨论 ,并提出了自己的见解 .在此基础上论证了不可预测的混沌信号的产生方法 ,对混沌加密和传统加密系统进行了对比 ,提出了一个混沌加密和传统加密结合的系统方案 .本文提出了发挥混沌系统的不可预测性在混沌加密中的作用和将混沌加密与传统加密方法结合起来的思想 。

In this paper, the authors present their opinion on the different understandings of the definitions and basic properties of chaos, as well as of the security of chaotic cryptosystems. The method of producing chaotic signals is explored and chaotic encryption is compared with conventional encryption. Two new schemes of cascading chaotic and conventional encryption stages are proposed. It is shown that the combination of chaotic encryption and conventional encryption is important in raising the security of cryptosystems.