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arXiv 2401.09412cs.ITcs.CRmath.IT
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从MDS编码分布式存储中进行弱隐私信息检索

Weakly-Private Information Retrieval From MDS-Coded Distributed Storage

Asbjørn O. Orvedal, Hsuan-Yin Lin, Eirik Rosnes

AI总结:

本文首次研究MDS编码分布式存储下的弱隐私信息检索问题,提出WPIR协议并刻画下载速率与信息泄露的最优权衡。

摘要:

我们考虑当数据由最大距离可分(MDS)码编码并存储在多个服务器上时的弱隐私信息检索(WPIR)问题。在WPIR中,用户希望从一组服务器中检索一段数据,同时不过多泄露她感兴趣的是哪一段数据。我们研究并提供了该场景下的首批WPIR协议,并利用最大泄露隐私度量给出了它们在下载速率与信息泄露之间最优权衡的结果。

英文摘要:

We consider the problem of weakly-private information retrieval (WPIR) when data is encoded by a maximum distance separable code and stored across multiple servers. In WPIR, a user wishes to retrieve a piece of data from a set of servers without leaking too much information about which piece of data she is interested in. We study and provide the first WPIR protocols for this scenario and present results on their optimal trade-off between download rate and information leakage using the maximal leakage privacy metric.

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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