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arXiv:quant-ph/0605006 · Chinese Physics Letters

Multiparty Simultaneous Quantum Identity Authentication Based on Entanglement Swapping

Wang Jian, Zhang Quan, Tang Chao-Jing

Published Sep 1, 2006• 45 citations
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Abstract

We present a multiparty simultaneous quantum identity authentication protocol based on entanglement swapping. In our protocol, the multi-user can be authenticated by a trusted third party simultaneously.
DOI
10.1088/0256-307x/23/9/004

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Multiparty Simultaneous Quantum Identity Authentication Based on Entanglement Swapping

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Chinese Physics Letters•Jan 1, 2006•0 citations
In this paper we propose a new protocol for multiparty secret key sharing by using quantum entanglement swapping. Quantum Entanglement swapping is a process that allows two non-interacting quantum systems to be entangled. Further, to increase the security level and to make sure that the users are legitimate, authentication for both parties will be required by a trusted third party. In this protocol, a trusted third party will authenticate the sender and the receiver and help them forming a secret key. Furthermore, the proposed protocol will perform entanglement swapping between the sender and the receiver. The result from the entanglement swapping will be an Einstein-Podolsky-Rosen (EPR) pair that will help them in forming and sending the secret key without having the sender to send any physical quantum states to the receiver. This protocol will provide the required authentication of all parties to the trusted party and it will provide the required secure method in transmitting the secret key.
In this paper we propose a new protocol for multiparty secret key sharing by using quantum entanglement swapping.Quantum Entanglement swapping is a process that allows two non-interacting quantum systems to be entangled.Further, to increase the security level and to make sure that the users are legitimate, authentication for both parties will be required by a trusted third party.In this protocol, a trusted third party will authenticate the sender and the receiver and help them forming a secret key.Furthermore, the proposed protocol will perform entanglement swapping between the sender and the receiver.The result from the entanglement swapping will be an Einstein-Podolsky-Rosen (EPR) pair that will help them in forming and sending the secret key without having the sender to send any physical quantum states to the receiver.This protocol will provide the required authentication of all parties to the trusted party and it will provide the required secure method in transmitting the secret key.
Unconditional security in Quantum Key Distribution (QKD) relies on authenticating the identities of users involved in key distribution. While classical identity authentication schemes were initially utilized in QKD implementations, concerns regarding their vulnerability have prompted the exploration of Quantum Identity Authentication (QIA) protocols. In this study, we introduce a new protocol for QIA, derived from the concept of controlled secure direct quantum communication. Our proposed scheme facilitates simultaneous authentication between two users, Alice and Bob, leveraging Bell states with the assistance of a third party, Charlie. Through rigorous security analysis, we demonstrate that the proposed protocol withstands various known attacks, including impersonation, intercept and resend and impersonated fraudulent attacks. Additionally, we establish the relevance of the proposed protocol by comparing it with the existing protocols of similar type.