Quantum cryptographic key relay method and device based on centralized management and control network

摘要

An embodiment of the present invention relates to the field of communication technology, and more particularly, to a quantum key relay method and apparatus based on a centralized management and control network for determining a global optimal key relay command. Embodiments of the present application are applicable to centralized management and control networks. The centralized controller obtains Z service requests, and the identifier of the source service node and the identifier of the destination service node corresponding to each of the Z service requests, the quantum key consumption parameter, and the topology information of the key node in the centralized management and control network determines a global optimal key relay command corresponding to the G service requests based on so that the key relay command corresponding to the G service requests is transmitted to the key node corresponding to the key relay command.