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A Quantum Key Distribution and Access Scheme Based on Seafloor Observation Network

Based on the Seafloor Observation Network, a scheme is proposed for underwater mobile platform to achieve secure communication by achieving quantum key distribution with network nodes and then accessing the backbone network. We construct a mathematical model of underwater quantum key distribution, and verify the feasibility of the underwater quantum key distribution and access scheme through simulation. The simulation results show that the quantum key distribution in clear, mixed and chaotic sea water can reach respectively the maximum secure communication distances of 339m, 56m, and 33m. It has a certain reference for the close-distance confidential communication between underwater mobile platforms and underwater network nodes.