Relativistic quantum private database queries

Relativistic quantum private database queries
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DOI:
10.1007/s11128-015-0937-9
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发表时间:
2015-02
影响因子:
2.5
通讯作者:
Si-Jia Sun;Yuguang Yang;Ming-Ou Zhang
Si-Jia Sun;Yuguang Yang;Ming-Ou Zhang
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Si-Jia Sun;Yuguang Yang;Ming-Ou Zhang

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最近,Jakobi等人(Phys Rev A 83,022301,2011)提出了基于Scarani等人(Phys Rev Lett 92,057901,2004)量子密钥分发协议的第一个实用的私有数据库查询协议(J协议)。不幸的是,J协议只是一个对欺骗敏感的私有数据库查询协议。本文基于Minkowski因果关系和量子信息的性质,提出了一个理想化的相对论量子私有数据库查询协议。从用户安全性和数据库安全性两方面证明了该协议是安全的。
Recently, Jakobi et al. (Phys Rev A 83, 022301, 2011) suggested the first practical private database query protocol (J-protocol) based on the Scarani et al. (Phys Rev Lett 92, 057901, 2004) quantum key distribution protocol. Unfortunately, the J-protocol is just a cheat-sensitive private database query protocol. In this paper, we present an idealized relativistic quantum private database query protocol based on Minkowski causality and the properties of quantum information. Also, we prove that the protocol is secure in terms of the user security and the database security.