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Quantum Information Processing

An entanglement-free authenticated quantum key distribution protocol

  • 01-11-2025
Published in:
Authors
Xuanbing Li
Shuai Li
Jian Li
Li Miao
Published in
Quantum Information Processing | Issue 11/2025

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Abstract

This article introduces an entanglement-free authenticated quantum key distribution (QKD) protocol that leverages single-photon sequences and unitary transformations for secure communication. The protocol ensures identity authentication and key distribution through a series of steps involving a third-party UTP (Untrusted Third Party) that performs quantum measurements and publishes results. The article also extends the protocol to multiparty scenarios using locally indistinguishable orthogonal product bases, demonstrating its feasibility through security and efficiency analyses. Key topics include the background of quantum cryptography, the detailed process of the two-party authentication QKD protocol, the extension to multiparty scenarios, and the protocol's resistance to various attacks such as impersonation, intercept-resend, and Trojan horse attacks. The article concludes with an evaluation of the protocol's correctness, security, and efficiency, highlighting its practical significance in quantum-secure communication.
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previous article A simple mechanism for unstable degeneracies in local Hamiltonians
next article Counterfactual quantum networks based on multipartite GHZ entangled communication
Title
An entanglement-free authenticated quantum key distribution protocol
Authors
Xuanbing Li
Shuai Li
Jian Li
Li Miao
Publication date
01-11-2025
Publisher
Springer US
Published in
Quantum Information Processing / Issue 11/2025
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-025-04969-2
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