Abstract
Quantum key distribution (QKD) provides theoretic information security in communication based on the laws of quantum physics. In this work, we report an implementation of quantum-secured data transmission in the infrastructure of Sberbank of Russia in standard communication lines in Moscow. The experiment is realized on the basis of already deployed urban fiber-optics 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 between two offices of Sberbank. The hybrid approach used offers possibilities for long-term protection of the transmitted data; it is promising for integrating in the already existing information security infrastructure.
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Duplinskiy, A.V., Kiktenko, E.O., Pozhar, N.O. et al. Quantum-Secured Data Transmission in Urban Fiber-Optics Communication Lines. J Russ Laser Res 39, 113–119 (2018). https://doi.org/10.1007/s10946-018-9697-1
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DOI: https://doi.org/10.1007/s10946-018-9697-1