基于云计算的混合超混沌加密算法研究

Research on hybrid hyper chaotic encryption algorithm based on Cloud Computing

摘要:

针对云计算环境中的数据安全问题，提出了一种基于云计算的混合超混沌加密算法。首先，选取三个超混沌系统的初始值作为密钥参数，利用超混沌系统更加复杂的动力学行为产生随机特性良好的混沌序列；接着，对三个超混沌系统进行预处理后，进而设计一个混合超混沌分组加密方案；最后，基于MapReduce的云计算分布式编程模型，设计并行超混沌加密算法。实验结果和分析表明，算法具有执行效率高，密钥空间大及密钥敏感性良好的特性。

Abstract:

Aiming at the problem of data security in cloud computing environment, a hybrid hyper chaotic encryption algorithm based on cloud computing is proposed. Firstly, the initial values of three hyperchaotic systems are chosen as the key parameters, and the chaotic sequences with good random characteristics are generated by the more complex dynamical behavior of hyperchaotic systems; Then, three hyperchaotic systems are pre-processed, and then a mixed hyperchaotic block encryption scheme is designed; Finally, a parallel hyper chaotic encryption algorithm is designed based on the distributed programming model of cloud computing in MapReduce. Experimental results and analysis show that the algorithm has the characteristics of high efficiency, large key space and good key sensitivity.