| 基于多混沌映射的信息加密算法 |
| |
| 引用本文： | 刘金梅,丘水生,向菲,肖慧娟. 基于多混沌映射的信息加密算法[J]. 华南理工大学学报(自然科学版), 2007, 35(5): 1-5 |
| |
| 作者姓名： | 刘金梅 丘水生 向菲 肖慧娟 |
| |
| 作者单位： | 华南理工大学,电子与信息学院,广东,广州,510640;华南理工大学,电子与信息学院,广东,广州,510640;华南理工大学,电子与信息学院,广东,广州,510640;华南理工大学,电子与信息学院,广东,广州,510640 |
| |
| 基金项目： | 国家自然科学基金资助项目(60372004)，广东省自然科学基金资助项目(031445)，暨南大学引进人才启动基金资助项目(51205068) |
| |
| 摘 要： | 为了增强混沌加密的安全性,提出一种基于多个混沌离散映射的动态加密算法.该算法使用了两个混沌级联子系统.子系统由简单混沌映射构成,其输出与明文相加取模后生成密文,而且子系统的迭代次数呈动态变化,提高了密文的不可预测性.仿真实验和安全性分析表明,该算法的密钥空间大,对明文和密钥敏感,能够有效地抵抗利用统计特性、差分特性和相空间重构进行的攻击.
|
| 关 键 词： | 混沌 加密 保密通信 混沌映射 |
| 文章编号： | 1000-565X（2007）05-0001-05 |
| 修稿时间： | 2006-05-09 |
Information Encryption Algorithm Based on Multiple Chaotic Mappings |
| |
| Liu Jin-mei,Qiu Shui-sheng,Xiang Fei,Xiao Hui-juan. Information Encryption Algorithm Based on Multiple Chaotic Mappings[J]. Journal of South China University of Technology(Natural Science Edition), 2007, 35(5): 1-5 |
| |
| Authors: | Liu Jin-mei Qiu Shui-sheng Xiang Fei Xiao Hui-juan |
| |
| Affiliation: | School of Electronic and Information Engineering, South China Univ. of Tech. , Guangzhou 510640, Guangdong, China |
| |
| Abstract: | In order to improve the security of chaotic encryption,a dynamic encryption algorithm based on multiple chaotic mappings is proposed.In the proposed algorithm,two cascaded chaotic subsystems composed of simple chaotic mappings are adopted,and their outputs are added to the plaintext with modulus to obtain encrypted information.The iterations of the subsystems are randomly changed,so that the unpredictability of the encrypted information is enhanced.Simulation tests and security analyses show that the proposed algorithm possesses large key space,high sensitivity to plaintext and key,and excellent security against varied attacks via statistical and differential characteristics and phase space reconstruction. |
| |
| Keywords: | chaos encryption secure communication chaotic mapping |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
