Articles with "quantum private" as a keyword



Cryptanalysis and Improvement of Ye et al’s Quantum Private Comparison Protocol

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Published in 2019 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-019-04080-0

Abstract: Recently, Ye et al. (Int. J. Theor. Phys. 56, 1517–1529, 2017) proposed a quantum private comparison (QPC) protocol based on five-qubit entanglement state. Two parties can verify that their secret information is equal or not… read more here.

Keywords: private comparison; cryptanalysis improvement; quantum private; protocol ... See more keywords

Quantum Private Query Based on Stable Error Correcting Code in the Case of Noise

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Published in 2019 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-019-04295-1

Abstract: In order to protect the privacy of query users and databases, a quantum private query protocol under noisy conditions is proposed and studied. It is a one-way quantum protocol that not only protects user privacy,… read more here.

Keywords: private query; quantum; quantum private; error ... See more keywords

Comment on “flexible protocol for quantum private query based on B92 protocol”

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Published in 2017 at "Quantum Information Processing"

DOI: 10.1007/s11128-017-1518-x

Abstract: In a recent paper (Quantum Inf Process 13:805–813, 2014), a flexible quantum private query (QPQ) protocol based on B92 protocol is presented. Here we point out that the B92-based QPQ protocol is insecure in database… read more here.

Keywords: private query; quantum; quantum private; protocol ... See more keywords
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Statistics attack on ‘quantum private comparison with a malicious third party’ and its improvement

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Published in 2018 at "Quantum Information Processing"

DOI: 10.1007/s11128-017-1788-3

Abstract: Recently, Sun et al. (Quantum Inf Process:14:2125-2133, 2015) proposed a quantum private comparison protocol allowing two participants to compare the equality of their secrets via a malicious third party (TP). They designed an interesting trap… read more here.

Keywords: malicious third; quantum private; private comparison; third party ... See more keywords

Efficient semi-quantum private comparison using single photons

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Published in 2019 at "Quantum Information Processing"

DOI: 10.1007/s11128-019-2251-4

Abstract: AbstractThis paper proposes an efficient semi-quantum private comparison protocol (SQPC) using single photons, which allows two classical participants to securely compare the equality of their secret with the help of an almost-dishonest third party. Because… read more here.

Keywords: quantum private; private comparison; efficient semi; semi quantum ... See more keywords

Multi-user quantum private query

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Published in 2020 at "Quantum Information Processing"

DOI: 10.1007/s11128-020-02732-3

Abstract: Quantum private query (QPQ) is a kind of secure information retrieve protocol, in which both user and database privacy can be protected. Previous QPQ protocols generally consider one user retrieving and need to be performed… read more here.

Keywords: user; private query; quantum private; multi user ... See more keywords

Device-independent quantum private comparison protocol without a third party

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Published in 2018 at "Physica Scripta"

DOI: 10.1088/1402-4896/aad0fa

Abstract: Since unconditionally secure quantum two-party computations are known to be impossible, most existing quantum private comparison (QPC) protocols adopted a third party. Recently, we proposed a QPC protocol which involves two parties only, and showed… read more here.

Keywords: quantum private; party; private comparison; third party ... See more keywords

A semi-quantum private comparison protocol based on hybrid quantum states

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Published in 2025 at "Laser Physics Letters"

DOI: 10.1088/1612-202x/ae18bb

Abstract: Semi-quantum private comparison (SQPC) is a quantum cryptographic protocol that allows two classical participants to securely determine whether their private inputs are equal, with the assistance of a semi-honest third party possessing full quantum capabilities.… read more here.

Keywords: quantum states; quantum private; protocol; semi quantum ... See more keywords

Multi-party semi-quantum private comparison protocol of size relation based on two-dimensional Bell states

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Published in 2024 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ad73ae

Abstract: Currently, all quantum private comparison protocols based on two-dimensional quantum states can only compare equality, via using high-dimensional quantum states that it is possible to compare the size relation in existing work. In addition, it… read more here.

Keywords: comparison; size; quantum private; protocol ... See more keywords

Unidirectional quantum private comparison based on quantum private query

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Published in 2025 at "Chinese Physics B"

DOI: 10.1088/1674-1056/adc662

Abstract: Previous bidirectional quantum private comparison (BQPC) protocols cannot meet the requirements in some special application scenarios, where only one party needs to obtain the comparison results without a third party (TP), such as scenarios for… read more here.

Keywords: comparison; based quantum; unidirectional quantum; quantum private ... See more keywords

On the Capacity of Quantum Private Information Retrieval From MDS-Coded and Colluding Servers

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Published in 2022 at "IEEE Journal on Selected Areas in Communications"

DOI: 10.1109/jsac.2022.3142363

Abstract: In quantum private information retrieval (QPIR), a user retrieves a classical file from multiple servers by downloading quantum systems without revealing the identity of the file. The QPIR capacity is the maximal achievable ratio of… read more here.

Keywords: colluding servers; capacity; qpir; quantum private ... See more keywords