About the article
I.A. PROVORNOV, I.A. KALMYKOV, T.A. GISH
The article is devoted to the issue of increasing the reliability of the implementation of the SubBytes procedure of the AES cryptoalgorithm. The relevance of the development of new methods of corrective coding is substantiated. The theoretical foundations of the corrective coding algorithm in a polynomial system of residue classes with one control base and the decomposition of the problem of its hardware implementation are considered, the first stage of which is the development of a structural model of the device different from the classical implementation of the SubBytes procedure. Based on the requirements for the developed structural model, its main logical elements are determined (a block for converting numbers from a positional number system to a polynomial system of residue classes, replacement blocks, an error detection block, an error correction block), the order of their interaction, the number and format of input and output values. The examples show the principle of operation of the proposed device.
SPN systems, AES, SubBytes, reliability, corrective coding, polynomial system of residue classes, modular arithmetic.