Routing methods in networks with quantum key distribution

The article discusses the adaptation of quantum cryptography methods for modern networks. In particular, the possibilities of using quantum key distribution (QKD) as one of the most actively developing areas of quantum cryptography are analyzed. The article discusses the possibility of using classical routing to integrate quantum key distribution. Possible strategies for the development of routing methods in networks using QKD are systematized and generalized, and effective approaches to the creation of routing protocols in quantum networks are identified. The main technical barriers to the implementation of the QKD technology are highlighted, such as the low speed of generating a secure key, the limited distance of direct interaction and the need for trusted intermediary nodes. The problems in the integration of quantum technologies, such as violation of the coherence of quantum memory, the limited range of data transmission and the need for complex specialized equipment, are considered. The article presents the key aspects of quantum routing and related properties describing the QKD, and selects an approach that will build the most efficient QKD network.