Quantum Direct Communication with Authentication

Abstract

We propose two Quantum Direct Communication (QDC) protocols with user authentication. Users can identify each other by checking the correlation of Greenberger-Horne-Zeilinger (GHZ) states. Alice can directly send a secret message to Bob using the remaining GHZ states after authentication. Our second QDC protocol can be used even though there is no quantum link between Alice and Bob. The security of the transmitted message is guaranteed by properties of entanglement of GHZ states.

9 pages, 3 figures and 2 tables

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Cited by in corpus (20)

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• Secure quantum conversation through non-destructive discrimination of highly entangled multipartite states
• Quantum secure direct communication network with superdense coding and decoy photons
• Experimental realization of large-alphabet quantum key distribution protocol using orbital angular momentum entanglement
• Economical Quantum Secure Direct Communication Network with Single Photons
• Quantum broadcast communication
• Multi-party quantum key agreement protocol with authentication
• Quantum direct communication protocol using recurrence in k-cycle quantum walk
• Quantum Secure Direct Communication with Mutual Authentication using a Single Basis
• Two Quantum Proxy Blind Signature Schemes Based on Controlled Quantum Teleportation
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• Cryptanalysis of Quantum Secure Direct Communication Protocol with Mutual Authentication Based on Single Photons and Bell States
• Fishing for Eavesdroppers