2014 12th International Conference on Frontiers of Information Technology (FIT) (2014)

Islamabad, Pakistan

Dec. 17, 2014 to Dec. 19, 2014

ISBN: 978-1-4799-7504-4

pp: 159-164

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/FIT.2014.38

ABSTRACT

AES type S-boxes are constructed by replacing the affine matrix of AES S-box equation with 8x8 invertible affine matrices. The 8x8 S-boxes of AES produced in GF (28) are a nonlinear transformation that have significant effect on the strength of entire system. In this paper, 46 AES like S-boxes are generated by replacing the affine matrix and only 10 randomly selected S-boxes are included. The cryptographic properties of 10 AES like S-boxes are analyzed. The S-box must satisfy these properties in order to yield a secure and reliable cipher. These include: Avalanche, Strict Avalanche, Bit Independence criteria and Non-linearity measurement. The experimental results indicate that most of the generated S-boxes mimic the AES original S-box with respect to these properties and some of them are stronger than AES S-box.

INDEX TERMS

Polynomials, Ciphers, NIST, Additives

CITATION

U. Waqas, S. Afzal, M. A. Mir and M. Yousaf, "Generation of AES-Like S-Boxes by Replacing Affine Matrix,"

*2014 12th International Conference on Frontiers of Information Technology (FIT)*, Islamabad, Pakistan, 2014, pp. 159-164.

doi:10.1109/FIT.2014.38

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