云存储中利用TPA的数据隐私保护公共审计方案  

A public auditing method of data privacy protection based on TPA in cloud storage

作　　者：杜朝晖 王建玺[2] 

机构地区：[1]广东邮电职业技术学院计算机系,广东广州510630 [2]平顶山学院软件学院,河南平顶山467000

出　　处：《电子技术应用》2015年第5期123-125,129,共4页Application of Electronic Technique

摘　　要：针对云存储中用户数据完整性和私密性易受破坏的问题,提出了一种能够保证云数据完整性和私密性的高效方法。首先定义了隐私保护公共审计算法,然后采用第三方审计方法为用户进行数据审计,最后在随机oracle模型上验证了方案具有较高的安全性和隐私性。计算开销分析表明,相比其他审计方案,所提出方案在服务计算方面更加高效。The integrity and privacy of users＇ data in cloud storage can be easily destroyed, to solve this problem, an effective method ensure the integrity and privacy of data in cloud storage is proposed. Firstly, the privacy protection public auditing algorithm is defined. Then, a public auditing scheme performs data auditing on behalf of user with the third party auditor （TPA） is proposed. Finally, proposed scheme is expanded to the situation of multiple auditing delegations from multiple users. High security and privacy of proposed scheme has been verified on the random oracle model, analysis results of computation overhead show that it is more ef- ficiently than other excellent schema on service computing.

关 键 词：云存储 数据完整性 隐私性保护 公共审计 第三方审计 批审计 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]