June 12, 2024Open Access

An application of SQUARE cryptanalysis to symmetric block cipher O'zDST 1105:2009 to retrieve secret parameters

AIAlisher IkramovNational University of Uzbekistan

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Abstract

Abstract We studied the symmetric block data encryption algorithm O'zDST 1105: 2009 and demonstrated the process of retrieving of secret parameters R, d using integral analysis (SQUARE-analysis). These parameters are based on the secret key and are used to construct substitution tables of the algorithm. We attacked a truncated version of the algorithm exploiting its vulnerabilities. We demonstrated the importance of a thorough examination of the mutual influence of operations in encryption algorithms.

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Alisher Ikramov (Wed,) studied this question.

synapsesocial.com/papers/68e651bbb6db6435875e1a70 https://doi.org/https://doi.org/10.21203/rs.3.rs-4500255/v1

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