一种新的基于混沌映射的分组加密方法  

A Novel Block Encryption Based on Chaotic Map

作　　者：陈果[1] 廖晓峰[1] 

机构地区：[1]重庆大学计算机学院,重庆400030

出　　处：《计算机工程与应用》2005年第24期44-46,70,共4页Computer Engineering and Applications

摘　　要：利用混沌动力系统对初值敏感、超长周期、看似随机等特性,和传统密码学相结合提出了一种新的对称加密方法。文中,分别对字符和图像输入做了实验;另外,还对这个加密系统进行了多种通用的密码学分析和测试,包括密钥空间分析,密钥敏感性测试,统计分析等等。实验及分析进一步表明,笔者提出的方法能够有效地把明文混乱和扩散进密文,并且能够有效地抵抗多种攻击。A new symmetric encryption scheme based on the chaotic cryptography and traditional cryptography has been proposed,which use the properties of chaotic dynamical system,such as sensitivity to initial conditions the highly unpredictable and random-look nature and so on.Furthermore,we make two experiments for character and image, respectively and at the end of this paper,we make some effective tests and analysis to substantiate that our eneryption scheme can map plaintext to cipher-text more confusion and more diffusion and our scheme can resist these attacks eft ectively.

关 键 词：高级加密标准 混沌动力系统 混沌密码学 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]