基于云计算数据查询的安全索引构建方法

摘要

为了加强云计算数据查询的安全性,防止用户数据查询过程中过度访问和检索过程的数据泄露,提出一种云计算服务端的数据安全索引构建方法.对图状部署的云计算数据采用相似子图和哈希函数进行构造,通过特征子结构将被查询对象与索引图状数据进行对比,找出被查询对象.该方法可防止非查询对象的图状数据泄露,同时将哈希函数对节点进行了散列,提高了节点安全性.仿真结果表明,该方法数据查询效率高,耗费存储资源少,安全性好.%In order to enhance the security of data query in cloud computing and avoid the excessive access and data leakage in the process of user data query,a construction method for data security index at the cloud computing service side was proposed.The cloud computing data with graph deployment were constructed with the similar subgraph and Hash function,and the query objects and graph data were compared through the characteristic substructure to find the query objects.This method can prevent the graph data leakage of non query objects, and hash the Hash function to the nodes to improve the security of nodes.The results show that the method had high data query efficiency,low storage resource consumption and good security.