摘要
对云计算存储的数据进行动态访问控制,在提高存储数据的使用率方面具有重要意义。传统的动态访问控制方法,主要通过对数据进行加密,增加用户使用安全性及使用成功率,用户在进行使用时需要解密才可使用,导致控制步骤增加,效率低的问题。提出改进二叉Trie树的云计算数据访问动态控制方法。该方法先构建云环境下的二叉Trie树数据访问的密钥推导函数,建立数据访问的密钥管理模型,给出密钥增强访问控制矩阵,并利用角色加密模式设计出一种面向数据存储的安全访问控制机制,利用上述机制完成了对云计算数据访问动态控制。仿真结果表明,所提算法大幅度提升了加密数据存储的安全性。
It has important significance in improving the usage rate of storage data to dynamically access control data stored in cloud computing.The traditional dynamic access control method,which is mainly used to encrypt the data,is designed to increase the security of users and the use of success rate.The user needs to decrypt the data before using,it leads to increasing control steps and low efficiency.This paper proposes a dynamic access control method for storage data in cloud computing to improve the two fork Trie trees.The key derivation function of the data access of the two fork Trie trees in cloud environment is constructed,the key management model of data access is established,and the key enhanced access control matrix is given.A secure access control mechanism for data storage is designed by using the character encryption mode,and the dynamic control of cloud computing data access is completed by using the above mechanism.The simulation results show that the proposed algorithm can greatly improve the security of encrypted data storage.
出处
《计算机仿真》
北大核心
2017年第3期365-368,共4页
Computer Simulation
关键词
云计算
数据访问
动态控制
Cloud computing
Data access
Dynamic control
作者简介
胡晓燕（1980-），女（汉族），内蒙古包头人，硕士研究生，讲师，主要研究领域为计算机网络。
