On the properties of the CTR encryption mode of Magma and Kuznyechik block ciphers with re-keying method based on CryptoPro Key Meshing

  • Akhmetzyanova L
  • Alekseev E
  • Oshkin I
  • et al.
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Abstract

Для шифра Магма с преобразованием ключа методом CryptoPro Key Meshing ( CPKM ) получены оценки стойкости в рамках стандартной модели и модели с информацией из побочных каналов. Предложена модификация алгоритма преобразования ключа, улучшенная по сравнению с CPKM. Обсуждаются эксплуатационные характеристики шифра Кузнечик в режиме CTR для нескольких методов преобразования ключа.Security bounds for the Magma cipher CTR encryption mode with the CryptoPro Key Meshing ( CPKM ) re-keying method are obtained for the standard security model and side channel information model. A modified re-keying method better than CPKM is proposed. Operational features of the Kuznyechik cipher CTR encryption mode for several re-keying methods are discussed.

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APA

Akhmetzyanova, L. R., Alekseev, E. K., Oshkin, I. B., Smyshlyaev, S. V., & Sonina, L. A. (2017). On the properties of the CTR encryption mode of Magma and Kuznyechik block ciphers with re-keying method based on CryptoPro Key Meshing. Математические Вопросы Криптографии, 8(2), 39–50. https://doi.org/10.4213/mvk222

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