NETWORK OPERATION METHOD, SYSTEM CONTROL DEVICE, NETWORK AND COMPUTER PROGRAMME FOR SAID CONTROL

摘要

FIELD: physics, computer engineering.SUBSTANCE: invention relates to a network operation method. A network comprises a node and a system control device. A system control device comprises a root key material which is a set of functions, each having a degree of complexity ?, and a node is provided with a portion of key material of a node having a degree of complexity ? extracted from the root key material. The system control device generates a portion of key material for an external user with a degree of complexity ? from the root key material and generates an access identifier. The system control device generates access key material with a degree of complexity less than ? from the portion of key material for the external user and generates a node identifier. The system control device provides the external user with a portion of access key material and the node identifier. The external user extracts a key from the portion of access key material and sends to the node said key and access identifier. The node calculates a key from the access identifier and the portion of node key material and compares the key sent by the external user and the key calculated by the node in order to identify the external user.EFFECT: improved security.14 cl, 4 dwg