一种基于同态标签的动态云存储数据完整性验证方法  

Dynamic cloud storage data integrity verifying method based on homomorphic tags

作　　者：胡德敏[1,2] 余星[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]上海理工大学计算机软件教研室,上海200093

出　　处：《计算机应用研究》2014年第5期1362-1365,1395,共5页Application Research of Computers

基　　金：国家自然科学基金资助项目(61202376);上海市教委科研创新资助项目(13YZ075);上海市教委"晨光计划"资助项目(10CG49)

摘　　要：在云存储服务中,为使用户可以随时验证存储在云存储服务器上数据的完整性,提出一种基于同态标签的动态数据完整性验证方法。通过引入同态标签和用户随机选择待检测数据块,可以无限次验证数据是否完好无损,并支持数据动态更新;可信第三方的引入解决了云用户与云存储服务供应商因数据完整性问题产生的纠纷,实现数据完整性的公开验证;然后给出该方法的正确性和安全性分析,以及该方法的性能分析;最后通过实验验证了该方法是高效可行的。In order to allow users can always verify the integrity of the data stored in cloud storage server, this paper proposed a dynamic data integrity verifying method based on homomorphic tags. Users could infinitely verify whether data integrity intact by introducing a homomorphic tags and user randomly selected data blocks to be verified,and support data dynamic updating; trusted third party auditor （TPA） could solve disputes of data integrity between users and cloud storage provider to realize the public validation of the data; and analysed correctness, security and performance of this method; finally the proposed method that could detect cloud storage data integrity was verified by experiment.

关 键 词：云计算 云存储 同态标签 数据完整性 公开验证 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]