基于HDFS的保障数据安全方法  

A Method of Protecting Data Security Based on HDFS

作　　者：李浩[1] 张玉萍[1] 周其耀 马燕[1] 杨燕勤[1] 

机构地区：[1]上海师范大学信息与机电工程学院,上海200233

出　　处：《东华大学学报（自然科学版）》2015年第4期490-493,共4页Journal of Donghua University(Natural Science)

基　　金：国家自然科学基金资助项目(61373004);上海师范大学基金资助项目(SK201413)

摘　　要：在云计算应用中,数据安全是用户最关心的问题.针对HDFS(hadoop distributed file system)中DataNode失效后存储数据不能被彻底保护,从而导致数据泄露的安全问题,设计了一种两级数据安全保障机制,在DataNode失效后,用数据覆盖算法破坏原数据,然后再删除数据,可以有效预防云中数据的恶意恢复、防止数据泄露,数据的安全性和可靠性得到了保障.With the application of cloud computing,data security is more attention by users.The open source cloud computing storage system,HDFS（hadoop distributed file system）can not completely protect data when DataNode failed,which may lead data leakage.In order to solve this problem,a dual-level data security and safegaurd mechanism is designed,so that the data in failed DataNode can be breached by the overwrite algorithm and then deleted reliably.This mechanism can effectively prevent malicious data recovery and data leakage with data overwrite algorithm.Security and reliability of the data in HDFS has been secured.

关 键 词：HADOOP 云计算 HDFS 安全 数据销毁 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]