信息论及其在序列密码设计应用中的几点认识

Some Views on Information Theory and Its Applicationin in the Design of the Stream Cipher

在工程实践中,人们一般想对数学概念有一个直观的解释。文献中很少有关于Shannon信息测度直观解释的内容。文中给出了对Shannon信息测度一些直观认识。信息论不仅是密码学重要的宏观指导理论,而且对密码设计中的局部模块的设计与分析也具有重要的指导意义,本文给出了我们在这方面的一些认识。

In the engineering practice,people often want to have the intuiti onistic explains to the mathematic c oncepts.But there is no paper to discuss the i ntuitionistic explains to the Shannon information measure.This paper g ives some intuition-istic explains to it.Information th eory not only can guide the cryptogra phy in macro,but also can guide the design of crypto-graphic submodule.In this paper,so me views on information theory appli cation in the design of the stream cip her are given.