首页 | 本学科首页   官方微博 | 高级检索  
     

基于四维混沌猫映射分组密码的设计与分析
引用本文:龙 敏,丘水生. 基于四维混沌猫映射分组密码的设计与分析[J]. 计算机工程与应用, 2007, 43(32): 125-127
作者姓名:龙 敏  丘水生
作者单位:长沙理工大学,计算机与通信学院,长沙,410076;华南理工大学,电子与信息学院,广州,510640
摘    要:基于四维混沌猫映射提出一种新的128 bit混沌分组密码。128 bit数据重新排列成4×4的十进制矩阵,并对其进行8轮运算。在每一轮运算中,随机选取其中某一行和某一列执行四维猫映射变换,再采用子密钥对其变换结果进行加密。对密码算法进行密文随机性测试,明文与密文的相关性测试,明文的敏感性测试和密钥的敏感性测试。安全性分析表明,该分组密码具有抵抗差分攻击和线性攻击的优良性能,并且具有较大的密钥空间。

关 键 词:分组密码  混沌加密  混沌映射
文章编号:1002-8331(2007)32-0125-03
修稿时间:2007-05-01

Design and analysis for block cipher based on 4D chaotic cat maps
LONG Min,QIU Shui-sheng. Design and analysis for block cipher based on 4D chaotic cat maps[J]. Computer Engineering and Applications, 2007, 43(32): 125-127
Authors:LONG Min  QIU Shui-sheng
Affiliation:1.College of Computer and Communication,Changsha University of Science and Technology,Changsha 410076,China 2.College of Electronic & Engineering,South China University of Technology,Guangzhou 510640,China
Abstract:A novel 128 bit block cipher based on 4D chaotic cat maps is proposed.128 bit data are rearranged to a 4×4 decimal matrix,which is processed by 8 rounds of operations.In each round,one row and one column will be randomly chosen to perform a 4D chaotic cat maps transformation,and then use the sub-key to encrypt it.A series of tests have been performed on the block cipher,such as random test on ciphertext,correlation test between the plaintext and the ciphertext,plaintext sensitivity test and key sensitivity test.Security analysis shows that the cipher has good performance to resist differential attack and linear attack,and it has a large key space.
Keywords:block cipher  chaos eneryption  ehaotic maps
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《计算机工程与应用》浏览原始摘要信息
点击此处可从《计算机工程与应用》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号