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arXiv 1503.08115cs.CRcs.DB
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云上的分布式隐私方法

A Distributed Approach to Privacy on the Cloud

Francesco Pagano

摘要:

基于云的数据处理和存储的日益普及带来了许多隐私问题。用户希望保留对其敏感数据的完全控制,并且不能接受外部存储提供商完全访问这些数据。以前在这方面的研究主要是解决技术,以保护存储在不受信任的数据库服务器上的数据;然而,我认为,云架构提出了一些具体的问题和问题。本论文包含了一个开放的问题进行了详细的分析。为了处理它们,我提出了一种新的方法,其中机密数据存储在高度分布式的分区数据库中,部分位于云上,部分位于客户端上。在我的方法中,数据可以是私有的,也可以是共享的;后者通过简单的授予和撤销权限以安全的方式共享。我开发了一个概念验证实现,它使用具有行级数据加密的内存RDBMS来实现细粒度的数据访问控制。在传统的外包RDBMS中很少采用这种方法,因为它需要几个复杂的步骤。我的proofofof-concept实现的基准测试表明,我的方法克服了大多数问题。

英文摘要:

The increasing adoption of Cloud-based data processing and storage poses a number of privacy issues. Users wish to preserve full control over their sensitive data and cannot accept it to be fully accessible to an external storage provider. Previous research in this area was mostly addressed at techniques to protect data stored on untrusted database servers; however, I argue that the Cloud architecture presents a number of specific problems and issues. This dissertation contains a detailed analysis of open issues. To handle them, I present a novel approach where confidential data is stored in a highly distributed partitioned database, partly located on the Cloud and partly on the clients. In my approach, data can be either private or shared; the latter is shared in a secure manner by means of simple grant-and-revoke permissions. I have developed a proof-of-concept implementation using an in-memory RDBMS with row-level data encryption in order to achieve fine-grained data access control. This type of approach is rarely adopted in conventional outsourced RDBMSs because it requires several complex steps. Benchmarks of my proofof-concept implementation show that my approach overcomes most of the problems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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