分布式数据库隐私信息增量式更新方法仿真  

Simulation of Incremental Updating Method of Privacy Information in Distributed Database

作　　者：王华 王玲维 黄汉云[2] WANG Hua;WANG Ling-wei;HUANG Han-yun(School of Computing,Guangdong University of Science and Technology,Dongguan Guangdong 523083,China;College of Mechanical Automation Hunan University of Technology,Hunan Zhuzhou 412000,China)

机构地区：[1]广东科技学院计算机学院,广东东莞523083 [2]湖南工业大学机械自动化学院,湖南株洲412000

出　　处：《计算机仿真》2022年第4期268-272,共5页Computer Simulation

摘　　要：针对传统的信息更新方法存在的更新效率低、隐私信息泄露风险大的问题,研究设计了一种分布式数据库隐私信息增量式更新方法。首先分析分布式数据库的存储结构和工作模式,在注册分布式数据库的基础上捕获增量变更数据。以捕获的变更数据为基础,加密保护数据库隐私信息。再通过数据转换、制定数据映射文件、数据加载、复制等步骤,实现分布式数据库隐私信息的增量式更新。仿真结果表明:与传统的信息更新方法相比,上述方法的更新速度更快,且隐私信息的泄露量更少。Traditional information updating methods have the problems of low updating efficiency and high risk of privacy information disclosure. This paper designs an incremental update method of privacy information in a distributed database. Firstly, the storage structure and working mode of the distributed database were investigated, and the incremental change data were captured. Secondly, based on the capture results, the database privacy information was encrypted. Then, each step(data mapping file, data loading and copying) was formulated via data conversion. Finally, the incremental update of privacy information in the distributed database was completed. The simulation results show that this method has a faster update speed and lower privacy information leakage.

关 键 词：分布式数据库 隐私信息 信息增量式更新 数据转换 数据映射 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]