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25 April 2024

» arxiv » 1712.9831

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Quantum-secured data transmission in urban fibre-optic communication lines
A.V. Duplinskiy ; E.O. Kiktenko ; N.O. Pozhar ; M.N. Anufriev ; R.P. Ermakov ; A.I. Kotov ; A.V. Brodsky ; R.R. Yunusov ; V.L. Kurochkin ; A.K. Fedorov ; Y.V. Kurochkin ;
Date:	28 Dec 2017
Abstract:	Quantum key distribution (QKD) provides information-theoretic security in communication based on the laws of quantum physics. In this work, we report an implementation of quantum-secured data transmission in standard communication lines in Moscow. The experiment is realized on the basis of the already deployed urban fibre-optic communication channels with significant losses. We realize the decoy-state BB84 QKD protocol using the one-way scheme with polarization encoding for generating keys. Quantum-generated keys are then used for continuous key renewal in the hardware devices for establishing a quantum-secured VPN Tunnel. Such a hybrid approach offers possibilities for long-term protection of the transmitted data, and it is promising for integrating into the already existing information security infrastructure.
Source:	arXiv, 1712.9831
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