FIELD: physics.
SUBSTANCE: invention relates to cryptography. Cryptographic system, which includes a plurality of configuration servers configured to configure a plurality of network devices for sharing keys, in which each configuration server includes a computing unit configured to calculate material for a local key for a network device based on the material for the root key, defined for the configuration server and the network device identification number for the configurable network device, at least two configuration servers from the plurality of configuration servers provide the calculated material for the local key to the said network device, network devices are configured to determine a shared key with any of a plurality of network devices.
EFFECT: technical result is improved safety of keys sharing.
13 cl, 7 dwg
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