METHOD FOR AUTHENTICATION OF COMMAND-SOFTWARE INFORMATION TRANSMITTED OVER RADIO CHANNELS OF ROBOTIC COMPLEXES WITH UNMANNED AIRCRAFT VEHICLES Russian patent published in 2023 - IPC G06F21/60 H04L9/28 H04W12/06 

FIELD: cryptographic protection.

SUBSTANCE: invention relates to the field of cryptographic protection of information transmitted over open communication channels or stored on storage media. The method contains stages in which the transmitting side, using a hash function, generates two chains of keys used in reverse order, the last generated key, called the root, is delivered over a secure communication channel to the receiving side; a time stamp and an identifier of the receiving side are added to the block of command-program information; from the generated block, a simulated insert is generated, which is concatenated with the protected information and the key on which it was generated; from the received data, a simulated insert is generated, which is concatenated with the above received data and the key, on which an imitation of the previous message is generated. The generated packet is transmitted to the receiving side. It is deconcatenated at the stage of authentication of the received data packet during which the received timestamp is compared with the on-board time of the receiving side. If the timestamp is reliable, then the authentication of the block of command-program information occurs after checking the key from the second chain and the simulated insert generated using this key, and if the timestamp is not reliable, then after receiving the next data packet and checking the key from the first chain and imitation of an insert generated using this key.

EFFECT: ensuring the protection of each information packet using its own one-time key with the ability to eliminate the delay in authentication of received packets.

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