Open AccessA combined method of formation of a cryptographic key with secret modification of the results of synchronization of artificial neural networks
Author(s) -
М. Л. Радюкевич
Publication year - 2021
Publication title -
sistemnyj analiz i prikladnaâ informatika
Language(s) - English
Resource type - Journals
eISSN - 2414-0481
pISSN - 2309-4923
DOI - 10.21122/2309-4923-2021-3-51-58
Subject(s) - cryptography , computer science , artificial neural network , encryption , synchronization (alternating current) , symmetric key algorithm , key (lock) , binary number , cryptographic primitive , theoretical computer science , cryptographic protocol , algorithm , public key cryptography , mathematics , artificial intelligence , computer network , arithmetic , computer security , channel (broadcasting)
This article discusses one of the ways to generate a common cryptographic key using synchronized artificial neural networks. This option is based on a combined method of forming a cryptographic key [1]. The proposed combined formation consists of two stages: the formation of partially coinciding binary sequences using synchronized artificial neural networks and the elimination of mismatched bits by open comparison of the parities of bit pairs. The purpose of this article is to increase the cryptographic strength of this method in relation to a cryptanalyst. In this regard, it is proposed to prematurely interrupt the synchronization process at the first stage of the combined method and make changes to the resulting binary sequence by randomly inverting a certain number of bits. To confirm the quality of this method, possible attacks are considered and the scale of enumeration of possible values is illustrated. The results obtained showed that the combined method of forming a cryptographic key with a secret modification of the synchronization results of artificial neural networks, proposed in this article, provides its high cryptographic strength, commensurate with the cryptographic strength of modern symmetric encryption algorithms, with a relatively simple implementation.