Private Information Retrieval with Preprocessing Based on the Approximate GCD Problem

Private Information Retrieval with Preprocessing Based on the Approximate GCD Problem
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基于近似GCD问题的隐私信息预处理检索

DOI:
10.1007/978-3-319-31301-6_14
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发表时间:
2015
期刊:
Proc. of SAC2015
影响因子:
--
通讯作者:
Thomas Vannet and Noboru Kunihiro
Thomas Vannet and Noboru Kunihiro
中科院分区:
--
文献类型:
--
作者:
Keita Emura;Takuya Hayashi;Noboru Kunihiro;Jun Sakuma;Yoshinao Uchide and Noboru Kunihiro;Thomas Vannet and Noboru Kunihiro

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PIR协议允许客户端私下恢复服务器上的数据。虽然存在许多协议,但由于它们对计算的要求很高,没有一种协议是实用的。我们解释了如何预处理是解决这个问题的必要性,然后我们提出了两个独立但相关的结果。首先,我们展示了Goldberg健壮的多服务器PIR协议如何与预处理技术兼容。我们详细介绍了理论上的计算和存储的折衷,并给出了实际的实现结果。然后,我们介绍了一个新的单服务器PIR协议,该协议在结构上类似Goldberg协议,但依赖于无关的近似GCD假设。我们描述了它的性能和安全性,以及实现结果。
PIR protocols allow clients to privately recover data on a server. While many protocols exist, none of them are practical due to their high computation requirement. We explain how preprocessing is a necessity to solve this issue, then we present two independent but related results. First, we show how Goldberg’s robust multi-server PIR protocol is compatible with preprocessing techniques. We detail the theoretical computation/memory tradeoff and present practical implementation results. Then, we introduce a new single-server PIR protocol that is reminiscent of Goldberg’s protocol in its structure but relies on the unrelated Approximate GCD assumption. We describe its performance and security, along with implementation results.
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