METHOD OF DELIVERING KEY WITH VERIFICATION OF RADIO NETWORK CORRESPONDENT AUTHENTICITY Russian patent published in 2018 - IPC H04L9/30 G06F21/62 

FIELD: radio engineering, communication.

SUBSTANCE: method for generating encryption-decryption keys based on users' generating a network of a large prime number p, a primitive element a of the Galois field GF (p), an individual confidential key X_i, on forming the correspondents' network of their public keys , exchanging them over an open radio channel with subsequent generation from their X_A and received Z_B key of the communication direction , which will be used to transfer the key of the common key network K_i to the station B. The network users additionally generate N as the product of two large prime numbers d and q, form a personal confidential digital signature key S_i, which can be part of an individual confidential key X_i, generate their public key for verifying the digital signature C_i, satisfying the condition C_i⋅S_i=I (mod (ϕN)), transmit it to all network correspondents along with the digital signature of their public key Z_i, which is compressed by a hash function to the image and is signed by the rule, while the authenticity of the sender A will be determined, when the condition is met.

EFFECT: constructing a method for delivering a confidential communication key to all correspondents of the radio network with simultaneous verification of the network correspondent authenticity.

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