FIELD: cryptography.
SUBSTANCE: initial sequence is formed on the receiving side of the communication direction and then encoded. A block of verification characters is selected from the encoded initial sequence and transmitted via the reverse communication channel without errors to the transmitting side of the communication direction. A decoded sequence is formed on the transmitting side of the communication direction. Sequence hashing functions are formed on the transmitting side of the communication direction and transmitted over a direct communication channel without errors to the receiving side of the communication direction. Encryption/decryption keys are formed on the receiving and transmitting sides of the communication direction by hashing the initial and decoded sequences according to the sequence hashing function formed on the transmitting side of the communication direction.
EFFECT: reduced time of forming the encryption/decryption.
5 cl, 37 dwg
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