Efficient and Accountable Oblivious Cloud Storage with Three Servers
Efficient and Accountable Oblivious Cloud Storage with Three Servers
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DOI：
10.1109/cns.2019.8802848
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发表时间：
2019-06
期刊：
影响因子：
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通讯作者：
Qiumao Ma;Wensheng Zhang
中科院分区：
文献类型：
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作者：
Qiumao Ma;Wensheng Zhang
随着云存储服务的普及，云存储的安全和隐私风险越来越受到关注，其中数据访问模式隐私是一个重要方面。许多解决方案已经被提出，但大多数是不可行的，由于在通信和存储的高开销。在本文中，我们提出了一种新的解决方案，以解决日益流行的云存储网关中的中等存储容量和存在多个竞争和独立的云存储服务器的限制。广泛的分析和评估表明，我们提出的系统可以同时达到可证明的数据访问模式的保护，低数据查询延迟，低服务器存储开销，低通信成本，和问责制的特点。
As the adoption of cloud storage service has been pervasive, more and more attentions have been paid to the related security and privacy risks, among which, data access pattern privacy is an important aspect. Lots of solutions have been proposed, but most are infeasible due to high overheads in communication and storage. In this paper, we propose a new solution to address the limitations by leveraging the moderate storage capacity in the increasingly popular cloud storage gateways and the existence of multiple competing and independent cloud storage servers. Extensive analysis and evaluation have shown that, our proposed system can simultaneously attain the features of provable protection of data access pattern, low data query delay, low server storage overhead, low communication costs, and accountability.