基于多分支路径树的云存储数据完整性验证机制

发布时间：2018-11-04 13:50

【摘要】：随着云存储技术的发展,为了节约存储成本,越来越多的用户选择将数据存储在云端,但同时用户也失去了对数据的控制权,无法确保云端数据的完整性。因此,云服务提供商(cloud service provider,CSP)需要通过一种有效的协议向用户提供数据完整性证明。目前许多方案仍存在无法支持全动态(插入、修改和删除)更新,或方案计算、存储和通信开销大等问题。针对上述问题,该文提出基于多分支路径树(large branching tree,LBT)的数据完整性验证机制,通过构建结构简单的认证树,简化动态更新过程,实现全动态更新。实验结果表明:该方案在动态更新过程中,能够减少协议各实体的计算负担,高效完成大量数据更新的云存储数据完整性验证。
[Abstract]:With the development of cloud storage technology, in order to save storage cost, more and more users choose to store data in the cloud, but at the same time, users also lose control of the data, which can not ensure the integrity of cloud data. Therefore, (cloud service provider,CSP (cloud service provider) needs to provide data integrity proof to users through an effective protocol. At present, many schemes still can not support full dynamic (insert, modify and delete) update, or the problem of scheme calculation, storage and communication overhead. To solve the above problems, this paper proposes a data integrity verification mechanism based on multi-branch path tree (large branching tree,LBT). By constructing a simple authentication tree, the dynamic updating process is simplified and the full dynamic update is realized. The experimental results show that the proposed scheme can reduce the computational burden of the protocol entities in the process of dynamic updating and efficiently verify the integrity of cloud storage data for a large number of data updates.
【作者单位】：北京交通大学电子信息工程学院;福建师范大学福建省网络安全与密码技术重点实验室;中国信息安全测评中心;中国计量科学研究院;
【基金】：中央高校基本科研业务费专项资金资助(2015YJS005) 国家自然科学基金面上项目(61472032) 福建省网络安全与密码技术重点实验室(福建师范大学)开放课题(15007) 国家科技支撑计划资助项目(2014BAK02B07)
【分类号】：TP333

【参考文献】