Cryptology ePrint Archive: Report 2004/024

Exponential S-boxes

Sergey Agievich and Andrey Afonenko

Abstract: Exponentiation in finite fields of characteristic 2 is proposed to construct large bijective S-boxes of block ciphers. We obtain some properties of the exponential S-boxes that are related to differential, higher order differential, and linear cryptanalysis methods.

Category / Keywords: secret-key cryptography / block ciphers, S-boxes, linear recurrence sequences, nonlinearity

Date: received 30 Jan 2004, last revised 5 Jul 2005

Contact author: agievich at bsu by

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Version: 20050705:100350 (All versions of this report)

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