结合m-序列扰动的复合混沌加密算法

A Compound Chaos Sequence Encryption Algorithm Combined with the m-Seqence Perturbation

在分析了混沌系统的特性后,本文提出使用Cubic映射复合Logistic映射并结合m-序列扰动的混沌加密算法。该算法使用了两种不同的一维混沌映射,从而提高了密钥空间和算法的安全性,通过使用m-序列扰动降低了退化周期。分析表明,该算法易于实现、加密速度快、保密性好。

After analyzing the characteristics of chaotic systems, a block encryption algorithm based on Cubic maps and Logistic maps with the combination of the m -sequence of the chaos is proposed. Owing to two different one-dimensional chaotic maps, the key space of the cryptosystem is extended. The use of m -sequences reduces the degradation of the disturbance cycle. The analysis shows that the algorithm is easy-to-implement and has the characteristics of fast encryption and good confidentiality.