Private database queries based on counterfactual quantum key distribution
Private database queries based on counterfactual quantum key distribution
Zhang, Jia-Li; Guo, Fen-Zhuo; Gao, Fei; Liu, Bin; Wen, Qiao-Yan
2013-08-27 00:00:00
Based on the fundamental concept of quantum counterfactuality, we propose a protocol to achieve quantum private database queries, which is a theoretical study of how counterfactuality can be employed beyond counterfactual quantum key distribution (QKD). By adding crucial detecting apparatus to the device of QKD, the privacy of both the distrustful user and the database owner can be guaranteed. Furthermore, the proposed private-database-query protocol makes full use of the low efficiency in the counterfactual QKD, and by adjusting the relevant parameters, the protocol obtains excellent flexibility and extensibility.
http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.pngPhysical Review AAmerican Physical Society (APS)http://www.deepdyve.com/lp/american-physical-society-aps/private-database-queries-based-on-counterfactual-quantum-key-sLvmkh62Dm
Private database queries based on counterfactual quantum key distribution
Based on the fundamental concept of quantum counterfactuality, we propose a protocol to achieve quantum private database queries, which is a theoretical study of how counterfactuality can be employed beyond counterfactual quantum key distribution (QKD). By adding crucial detecting apparatus to the device of QKD, the privacy of both the distrustful user and the database owner can be guaranteed. Furthermore, the proposed private-database-query protocol makes full use of the low efficiency in the counterfactual QKD, and by adjusting the relevant parameters, the protocol obtains excellent flexibility and extensibility.
Journal
Physical Review A
– American Physical Society (APS)
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