Метод захищеного передавання інформації

Abstract

A method of secure information transmission is presented, which involves the use of authenticated encryption. The proposed approach combines the advantages of block transformation and encryption with hashing, and the secret key is generated through multi-level compression of the Diffie-Hellman protocol results. A distinctive feature of the solution is the use of an orthogonal rotation matrix formed from a normalised quaternion, which provides strong diffusion for the initial data block. The gammification part of the algorithm implements the generation of a gamma with a high avalanche effect and integrated MAC code formation to confirm the authenticity of messages. The developed method unifies the processes of key agreement, encryption, and authentication, allowing the formation of a secure channel for information transfer between two parties.