基于一族混沌函数的置乱加密与还原

Encrpytion based on a series of chaos functions

介绍一族简单的混沌函数,给出它们的主周期轨道的一种简便求法,并利用周期点作为混沌数,对数字水印或文件进行置乱加密和还原。这种方法的优点:算法简单,变换多样。

A simple solution to obtaining the main period orbits for a series of chaos functions f2p＋1（x） was presented. Digital watermarks or files were encrypted or reconverted using the chaotic period points. The results indicate that the algorithm is simple with various metathesis.