MANAGEMENT OF SYNCHRONIZED SYMMETRIC KEY TO PROTECT DATA EXCHANGED BETWEEN COMMUNICATION NODES Russian patent published in 2016 - IPC H04L9/12 H04L9/08 

FIELD: data protection.

SUBSTANCE: invention relates to the protection of data exchanged between the communication nodes. Method of use of security keys for the protection / deprotection of data exchanged between communication nodes comprises: protection by the first communication unit of data to be sent to one or more second communication units based on a predetermined security key and deprotection by each of the second communication nodes protected data received from a first communication node on the basis of said predetermined security key synchronization by each communication unit respective binding to an internal time reference to the universal time so as to receive the respective binding to the synchronous time, and extracting means for each communication node, a predetermined key protection based on binding to a respective synchronous time of the same ordered sequence of security keys, each of which must be used in the respective time interval of confidence.

EFFECT: technical result - the protection of data exchanged between the communication nodes.

14 cl, 8 dwg