基于云计算的混合加密DAES算法研究

摘要

文中针对云计算的特点,对云计算中数据混合加密算法进行研究.首先分析了传统对称加密算法DES和AES,对其在云计算模型中的优劣进行了对比,然后结合Hadoop分布式计算框架提出了一种DAES混合加密改进算法,该算法通过对明文划分进行混合加密,并且加入随机扰动信息,有效的提高了安全性.然后通过在Hadoop上搭建集群模拟云计算环境,对明文进行不同数据块的划分进行加密和解密实验,实验结果从安全性和算法执行效率等方面横向对比DES算法和AES算法,证明DAES算法更加适用于云计算环境中的数据加密.%According to the characteristics of cloud computing , this paper analyzes the Hadoop distributed computing framework, and studies the data encryption algorithm in cloud computing. Firstly, the traditional encryption algorithm of DES and AES are analyzed , and the advantages and disadvantages of the algorithm in the cloud computing model are compared , and then a DAES hybrid encryption algorithm is proposed, and analyzed. Finally, experiments on the Hadoop platform, through the comparison of the division of the different data blocks and the efficiency of the algorithm , the DAES algorithm is more suitable for the data encryption in the cloud computing environment.