Quantum Private Comparison Protocol with Cluster States
In this paper, we introduce a quantum private comparison (QPC) protocol designed for two players to securely and privately assess the equality of their private information. The protocol utilizes four-particle cluster states prepared by a semi-honest third party (TP), who strictly adheres to the prot...
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MDPI AG
2025-01-01
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| Online Access: | https://www.mdpi.com/2075-1680/14/1/70 |
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| author | Min Hou Yue Wu |
| author_facet | Min Hou Yue Wu |
| author_sort | Min Hou |
| collection | DOAJ |
| description | In this paper, we introduce a quantum private comparison (QPC) protocol designed for two players to securely and privately assess the equality of their private information. The protocol utilizes four-particle cluster states prepared by a semi-honest third party (TP), who strictly adheres to the protocol without deviation or collusion with any participant. The TP facilitates the private comparison by enabling users to encode their information through bit-flip or phase-shift operators applied to the received quantum sequences. Once the information is encoded, the sequences are returned to the TP, who can derive the comparison results without accessing any details of the private information. This design ensures correctness, privacy, and fairness throughout the process. The QPC protocol is robust against both external threats and participant attacks due to the incorporation of the decoy-state method and quantum key distribution techniques. Additionally, the protocol employs unitary operations and Bell-basis measurements, enhancing its technical feasibility for practical implementation. Notably, the proposed protocol achieves a qubit efficiency of up to 50%. This efficiency, combined with its strong security features, establishes the QPC protocol as a promising solution for private information comparisons within the realm of quantum cryptography. |
| format | Article |
| id | doaj-art-f89f3e64a8bd4991a02caaa5e8cd2e13 |
| institution | Kabale University |
| issn | 2075-1680 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Axioms |
| spelling | doaj-art-f89f3e64a8bd4991a02caaa5e8cd2e132025-01-24T13:22:20ZengMDPI AGAxioms2075-16802025-01-011417010.3390/axioms14010070Quantum Private Comparison Protocol with Cluster StatesMin Hou0Yue Wu1School of Computer Science, Sichuan University Jinjiang College, Meishan 620860, ChinaSchool of Computer Science, Sichuan University Jinjiang College, Meishan 620860, ChinaIn this paper, we introduce a quantum private comparison (QPC) protocol designed for two players to securely and privately assess the equality of their private information. The protocol utilizes four-particle cluster states prepared by a semi-honest third party (TP), who strictly adheres to the protocol without deviation or collusion with any participant. The TP facilitates the private comparison by enabling users to encode their information through bit-flip or phase-shift operators applied to the received quantum sequences. Once the information is encoded, the sequences are returned to the TP, who can derive the comparison results without accessing any details of the private information. This design ensures correctness, privacy, and fairness throughout the process. The QPC protocol is robust against both external threats and participant attacks due to the incorporation of the decoy-state method and quantum key distribution techniques. Additionally, the protocol employs unitary operations and Bell-basis measurements, enhancing its technical feasibility for practical implementation. Notably, the proposed protocol achieves a qubit efficiency of up to 50%. This efficiency, combined with its strong security features, establishes the QPC protocol as a promising solution for private information comparisons within the realm of quantum cryptography.https://www.mdpi.com/2075-1680/14/1/70quantum private comparisonfour-particle cluster stateunitary operationsemi-honest third partyquantum cryptography |
| spellingShingle | Min Hou Yue Wu Quantum Private Comparison Protocol with Cluster States Axioms quantum private comparison four-particle cluster state unitary operation semi-honest third party quantum cryptography |
| title | Quantum Private Comparison Protocol with Cluster States |
| title_full | Quantum Private Comparison Protocol with Cluster States |
| title_fullStr | Quantum Private Comparison Protocol with Cluster States |
| title_full_unstemmed | Quantum Private Comparison Protocol with Cluster States |
| title_short | Quantum Private Comparison Protocol with Cluster States |
| title_sort | quantum private comparison protocol with cluster states |
| topic | quantum private comparison four-particle cluster state unitary operation semi-honest third party quantum cryptography |
| url | https://www.mdpi.com/2075-1680/14/1/70 |
| work_keys_str_mv | AT minhou quantumprivatecomparisonprotocolwithclusterstates AT yuewu quantumprivatecomparisonprotocolwithclusterstates |