Quantum Private Query Protocol Based on EPR Pairs. Issue 2 (1st March 2018)

• Record Type: Journal Article
• Authors: Chang, Yan; Xiong, Jinxin; Gao, Xiang; Zhang, Shibin; Yan, Lili
• Is Part Of: Chinese journal of electronics. Volume 27:Issue 2(2018)
• Page Start: 256
• Page End: 262
• Publication Date: 2018-03-01
• Subjects: Quantum private query (QPQ) -- Coherent attack -- Einstein‐Podolsky‐Rosen (EPR) pairs -- Bell inequality; EPR paradox -- protocols -- quantum cryptography; Quantum private query protocol -- EPR pairs -- device‐independent Quantum key distribution -- Einstein‐Podolsky‐Rosen -- coherent attacks -- weaker constraints -- quantum physics -- party -- existing QPQ protocols -- oblivious secret key -- Quantum register; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2018.01.016
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : We propose a Quantum private query (QPQ) protocol based on device‐independent Quantum key distribution (QKD) by using Einstein‐Podolsky‐Rosen (EPR) pairs. We analyze coherent attacks by a third party in a weaker constraints (non‐signaling condition) compared with the formalism of quantum physics. We deduce the relationship between the raw key bits of Alice and the third party's attack factor. Compared with existing QPQ protocols, our protocol is secure even when the source and measuring equipment used to distribute oblivious secret key can not be trusted. Quantum register is not needed in our protocol.