On the Algebraic Expression of the AES S-Box Like S-Boxes
Küçük Resim Yok
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer-Verlag Berlin
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the literature, there are several proposed block ciphers like ADS, Square, Shark and Hierocrypt which use S-boxes that are based on inversion mapping over a finite field. Because of the simple algebraic structure of S-boxes generated in this way, these ciphers usually use a bitwise affine transformation after the inversion mapping. In some ciphers like Camellia, an additional affine transformation is used before the input of the S-box as well. In this paper, we study algebraic expressions of S-boxes based on power mappings with the aid of finite field theory and show that the number of terms in the algebraic expression of an S-box based on power mappings changes according to the place an affine transformation is added. Moreover, a new method is presented to resolve the algebraic expression of the AES S-box like S-boxes according to the given three probable cases.
Açıklama
2nd International Conference on Networked Digital Technologies -- JUL 07-09, 2010 -- Charles Univ, Prague, CZECH REPUBLIC
Anahtar Kelimeler
S-Boxes, Power Mappings, Algebraic Expression, Finite Fields
Kaynak
Networked Digital Technologies, Pt 1
WoS Q Değeri
N/A
Scopus Q Değeri
Q4
Cilt
87
