Abstract
The relevance of the work is due to the need to develop controllers who encrypted information. The work was implemented in the work of encryption and decryption according to GOST 3412–2015, GOST 3413–2015. Programming was carried out on the basis of the ATMEGA 32A controller in the SI programming language. The program is made inside the microcontroller and interacts with the components of the circuit using PIN-S, thanks to which you can read and enter information. In the implementation of encryption and decryption algorithms, the Magma encryption algorithm, 4 types of transformations are used. The controller proposed in the work in its physical implementation has small dimensions, it is quite convenient to use it for quick encryptions, short messages that are urgently required to convey that it is its advantages. For rapid encryption of large volumes of data, the microcontroller can be connected to a given electronic circuit and adjusted the interaction of the output input, which expands its functional purpose.
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