在详细分析二维Henon映射的混沌和密码学特性的基础上,结合收缩式发生器,提出一种基于m-序列和Henon混沌序列的混合混沌序列密码算法。同时对该系统的安全性能进行了深入分析,理论和实验结果表明:在有限精度实现下,该方法可以有效提高混沌系统的复杂性和周期性,并且算法安全性高、运算速度快,适于在Internet上对多媒体信息的保密传输。 Based on the detailed analysis of the chaos and cryptography properties of two-dimensional Henon map, combined with the shrinkage generator, a hybrid chaotic sequence cipher algorithm based on m-sequence and Henon chaos sequence is proposed. At the same time, the safety performance of the system is analyzed in depth. The theoretical and experimental results show that the proposed method can effectively improve the complexity and periodicity of the chaotic system under the limited precision. The algorithm is safe and fast, On the Internet for the confidential transmission of multimedia information.