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Xian Zhu

at HUST

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Proceedings Article | 15 April 2004 Paper

A discussion on a quantum key remote distribution scheme not based on the quantum entanglement state

Yu Liu, Changqiang Wang, Fan Zhang, Guangxi Zhu, Xiang Zhu

Proceedings Volume 5282, (2004) https://doi.org/10.1117/12.523229

KEYWORDS: Quantum key distribution, Relays, Quantum efficiency, Quantum communications, Entangled states, Information security, Quantum information, Quantum networks, Particles, Quantum cryptography

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Most schemes of quantum key remote distribution available mainly deal with the quantum repeater based on quantum entanglement swapping. However, as the quantum repeater has many insurmountable shortcomings, this paper, relying on the existing fairly mature technique, proposes a highly efficient QKD scheme with authentication mechanism from a new perspective of scheme not based on entanglement swapping, overcoming the low efficiency of the entanglement swapping scheme. By means of the quantum authentication mechanism, this scheme is capable of preventing and detecting any active attacks from any point in the quantum network. The scheme proposed has realized authentication and key distribution in the quantum channel at the same time, providing the authentication mechanism of this type of remote key distribution network with a reference. This paper first briefly analyzes the shortcomings of the quantum repeater scheme based on entanglement swapping and introduces the idea of highly efficient quantum key negotiation by means of the pseudo random sequence. Then a key distribution with authentication protocol based on shared secret is presented followed by a description of the application of this scheme in the quantum key distribution network.

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