METHOD AND SYSTEM FOR DATA SECURITY WHEN ORGANIZING DATA EXCHANGE WITH SPACECRAFT Russian patent published in 2023 - IPC H04B7/185 H04L9/40 

FIELD: data security.

SUBSTANCE: security of data exchange systems with spacecraft (SC). The method organizes virtual local area networks for each type of traffic, and at the same time all types of traffic are transmitted in a single stream without reducing the level of cryptographic strength, where end devices of the same type are located in one local area network, separated by a closed communication channel, while data exchange with the spacecraft without the use of a repeater satellite is organized via virtual local computer networks: an open service communication channel; a closed local area network for controlling the space platform of the spacecraft; closed local area network for spacecraft payload control; a closed local area network for the transmission of target information, a closed local area network for controlling the earth station; data exchange with the spacecraft from the use of the repeater satellite is additionally organized by means of virtual local computer networks: a closed local control network of the space platform of the repeater satellite; a closed local area network for controlling the payload of the repeater satellite; local computer network of an open service communication channel of a repeater satellite and an earth station.

EFFECT: ensuring the data security in the organization of data exchange with spacecraft.

2 cl, 12 dwg