基于混沌序列的数据加密算法设计与实现

Design and Implement of a Data Encryption Algorithm Based on Chaotic Sequence

从理论上分析了混沌序列加密方式、密钥流产生方法、密钥空间大小 ;提出了基于 L ogistic混沌序列的数据加密模型 ;通过对混沌序列加密算法的设计 ,提高了运算速度 ;算法分析表明该算法具有很强的抗密钥穷举攻击和抗选择明文攻击的能力 .作者采用微软公司 VS.Net开发工具设计了基于混沌序列的数据加密软件 (Sm artdog) ,该软件适合于任何数据文件的加密 ;并将混沌加密算法与常用加密算法 DES、RSA进行了比较 .

Analyzing the principle of chaotic sequence encryption, the production of keys stream, and the space of keys. An encryption mode based on Logistic chaotic sequence was proposed. Through analyzing the algorithm, it has anti broken strength for searching for keys and chosen plaintexts. By using the VS.Net development tools, an encryption software called Smartdog was implemented. The software suits to encrypt any data files. Finally, the features of chaos encryption are compared with some general encryption algorithms, such as DES and RSA.