Novel classical post-processing for quantum key distribution-based quantum private query

Yang, Yu‐Guang; Liu, Zhichao; Chen, Xiu-Bo; Cao, Weifeng; Zhou, Yi‐Hua; Shi, Wei‐Min

doi:10.1007/s11128-016-1367-z

Cited by 41 publications

(7 citation statements)

References 27 publications

(18 reference statements)

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“…Step6: Next, we use a more advanced post-processing method to improve the security of the protocol [24]. After quantum key distribution, Bob and Alice will get an n-bit raw key, which we define as R. Bob knows every qubit information in R and Alice only knows a half of them, N represents the number of entries.…”

Section: Protocol Processmentioning

confidence: 99%

Development of Quantum Private Queries Protocol on Collective-Dephasing Noise Channel

Zhao

Zhang

et al. 2020

Applied Sciences

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Quantum private queries can commonly protect important information in a good many of domains, such as finance, business, military, which use quantum effects to achieve unprecedented classical private queries. However, quantum state can be easily affected by environmental noise, which affects the actual effect of quantum private queries. This paper developed a new quantum private query protocol based on four qubits logical Bell state to resist the collective-dephasing noise. The symmetric private information retrieval problem, which is the most influential problem in the process of quantum private query, was solved well by quantum oblivious transfer. It introduces the construction of four qubits logical Bell state. The quantum private query protocol innovates the quantum key distribution process by using the four qubits logical Bell state as the measurement base to measure the logical qubits, and ensures the function of quantum oblivious transmission. The protocol cannot only resist the noise influence of the communication process, but also ensure the security of both sides of the communication.

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Section: Protocol Processmentioning

confidence: 99%

Development of Quantum Private Queries Protocol on Collective-Dephasing Noise Channel

Zhao

Zhang

et al. 2020

Applied Sciences

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“…Existing works on QPQ mainly research from three aspects: research on the methods of oblivious key distribution [9], [10], [12]- [21], research on the classic post-processing (CPP) algorithms [20], [22]- [24] and research on the ways to stand against channel noise [21], [23], [25]. In the first aspect, Gao et al [9] and Yang et al [10] proposed flexible QPQ protocols, which use the thoughts of B92 protocol [11] to improve J-protocol.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, Gao et al [23] proposed an effective error-correction method which makes such QPQ more practical. Regarding the communication efficiency and security, Yang et al [24] presented a novel CPP scheme to reduce the communication complexity and improve the security. In terms of ways to stand against channel noise, Chan et al [21] proposed a fault-tolerant QPQ protocol in which a novel error-correction algorithm is used to cope with noisy channels, accompanied by a proof-ofconcept demonstration of the protocol over a deployed fiber.…”

Section: Introductionmentioning

confidence: 99%

Quantum Wireless Network Private Query With Multiple Third Parties

Chen

et al. 2019

IEEE Access

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With the development of quantum wireless networks, the practical application of quantum private query (QPQ) should conform to the features of quantum wireless networks to achieve any-to-any query, and QPQ requires a new query mechanism. We first propose a scheme for a network private query in a quantum wireless network with multiple third parties, in which any user can query any database with the assistance of the third parties, by measuring each of the distant nodes that initially share entanglement with each other. The required entanglement among these nodes is established by the third-party intermediate node equipped with GHZ generator using multi-qubit GHZ states. A bilayer network topology, as well as the corresponding private query protocol, ensures the rapid and secure private query. Under the protection of the multi-qubit GHZ state's quantum correlation, the privacy of Alice and Bob is protected from the third parties' fake entangled attack and external attack, and they cannot obtain the privacy of each other by taking quantum memory attack. The performance parameters of the proposed scheme are described based on the analysis of classical wireless communication cost and communication delay. INDEX TERMS Quantum private query, quantum wireless network, security.

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“…The CPP algorithm of the oblivious key is of vital importance to the efficiency and security of QPDQ protocols. Some CPP algorithms have been proposed 8 25 26 . For example, J-protocol gave a kN → N method, that is, it transforms a raw key with length kN into an N -bit final key, which requires a communication complexity of Ο( N log N ) (here N is the total number of items in the database) 8 .…”

mentioning

confidence: 99%

“…To solve the linear correlation among the adjacent final bits, Yang et al . 26 proposed a nonlinear CPP scheme for QKD-based QPDQs.…”

mentioning

confidence: 99%

Practical Quantum Private Database Queries Based on Passive Round-Robin Differential Phase-shift Quantum Key Distribution

Yang

Chen

et al. 2016

Sci Rep

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A novel quantum private database query protocol is proposed, based on passive round-robin differential phase-shift quantum key distribution. Compared with previous quantum private database query protocols, the present protocol has the following unique merits: (i) the user Alice can obtain one and only one key bit so that both the efficiency and security of the present protocol can be ensured, and (ii) it does not require to change the length difference of the two arms in a Mach-Zehnder interferometer and just chooses two pulses passively to interfere with so that it is much simpler and more practical. The present protocol is also proved to be secure in terms of the user security and database security.

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Novel classical post-processing for quantum key distribution-based quantum private query

Cited by 41 publications

References 27 publications

Development of Quantum Private Queries Protocol on Collective-Dephasing Noise Channel

Development of Quantum Private Queries Protocol on Collective-Dephasing Noise Channel

Quantum Wireless Network Private Query With Multiple Third Parties

Practical Quantum Private Database Queries Based on Passive Round-Robin Differential Phase-shift Quantum Key Distribution

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