期刊
COMPUTER STANDARDS & INTERFACES
卷 87, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.csi.2023.103769
关键词
Advanced Encryption Standard design; Encryption; Substitution box; Galois fields; Periodicity; Affine transformation
This paper investigates a specific family of enhanced substitution boxes for the Advanced Encryption Standard. These modified S-boxes have the maximal periodicity property, with each input having the maximum orbit length of 256. The parameters for achieving this maximal periodicity property are completely determined. The new enhanced S-boxes also exhibit improved bit avalanche property.
This paper investigates a particular family of enhanced substitution boxes for the Advanced Encryption Standard. In contrast to the original substitution box design where each input has relatively short orbit lengths, the modified S-boxes proposed here have the maximal periodicity property. In the family of enhanced substitution boxes, every S-box input has the maximum orbit length, which is 256. We determine completely all the parameters for the S-box to have this maximal periodicity property. We also show that our new enhanced S-boxes have better bit avalanche property.
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