XML密文数据库检索模型的研究

Research on the Index Model of Encrypted XML Database

针对外包XML数据库安全性差、密文检索效率低等问题,提出一种XML数据库密文检索模型,通过建立密文数据库的值索引和结构索引,并采用分桶管理策略记录值索引和结构索引中的入口地址,实现对XML数据的快速检索。此模型安全性高,通过支持范围的查询,容易实现数据的更新,可以有效地提高密文检索性能。

The security of database as a service and query effectiveness must be considered in the XML encryption.To address these problems,establishing the value index and structure index in encrypted XML database,and executely barrel management proposal for data addresses in the value index and structure index are effective.Through this program,the database security and query effectiveness are available.This program not only query precise value effectively,but also supports the scope query and easy update,which ensure the database system effectiveness.