基于混沌参数调制的数据加密算法

Data encryption algorithm based on chaotic parameter modulation

讨论了攻击混沌参数调制保密系统的两种策略,在此基础上提出一种两级调制的混沌映射数据加密算法,其中给数据又增加了一层反破解的混沌保护外壳。该方案生成的密文序列具有很强的复杂性,能隐藏参数数字调制的特征。在分析数据加密的过程中给出了仿真结果。

In this paper, two methods of the attack on secure system of chaotic mapping parameter modulation are discussed. On this basis, a data encryption algorithm based on two-stage modulation of Logistic-map is presented. An additional chaotic protective shell for anti-crack is designed. The ciphertext sequence having high complexity can hide the character of parameter digital modulation. Finally, the simulate results are given on the analysis of data encryption.