FIELD: quantum cryptography.
SUBSTANCE: technical result is achieved by a method of generating a key between two nodes of a computer network using a quantum key distribution system, wherein the network has M nodes connected in series, wherein each node includes input and output modules of quantum key distribution hardware, configured to generate quantum keys as a result of executing a set protocol of quantum key distribution, an information processing module; input module of one node and output module of the previous node are connected by a quantum communication channel made in form of a fiber-optic line; information processing module is connected to input and output modules with a digital data transmission network and is configured to receive data, generate random numbers, encrypt data, decrypt data, and transmit data.
EFFECT: technical result consists in improvement of security of transmitted key, possibility of using different encryption algorithms on each section of computer network, reduced possibility of attacks based on collection of statistics on by channels.
6 cl, 1 dwg
