Differential Attack on IDEA Block Cipher Based on Its Key-Adding Function

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Ескіз

Дата

2025

Науковий керівник

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Видавець

Igor Sikorsky Kyiv Polytechnic Institute

Анотація

This paper examines a new theoretical differential attack on the IDEA block cipher and several relatedciphers from the same design family, such as PES and MESH. We present an analysis of the mostprobable differentials, which characterise the ciphers’ security against the proposed attack. We alsopropose a design modification targeting the cipher’s key-adding function to enhance its security againstthe attack

Опис

Ключові слова

symmetric cryptography, block cipher, Lai-Massey scheme, IDEA, differential cryptanalysis

Бібліографічний опис

Parshyn, O. Differential Attack on IDEA Block Cipher Based on Its Key-Adding Function / Oleksandr Parshyn, Mykola Khmelnytskyi // Theoretical and Applied Cybersecurity: scientific journal. – 2025. – Vol. 7, No. 3. – P. 38-44. – Bibliogr.: 14 ref.

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