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
中科院分区:
文献类型:
--
作者:
Si-Jia Sun;Yuguang Yang;Ming-Ou Zhang
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.