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Bibliographic record number: 709075

Journal

Authors: Picek, Stjepan; Ege, Baris; Papagiannopoulos, Kostas; Batina, Lejla; Jakobović, Domagoj
Title: Optimality and beyond: The case of 4×4 S-boxes
( Optimality and beyond: The case of 4×4 S-boxes )
Source: IEEE International Symposium on Hardware-Oriented Security and Trust (HOST 2014)
Meeting: Hardware-Oriented Security and Trust (HOST), 2014 IEEE International Symposium on
Location and date: Arlington, SAD, 06-07.05.2014.
Keywords: Boolean functions ; Ciphers ; Computer science ; Genetic algorithms ; Resistance
( Boolean functions ; Ciphers ; Computer science ; Genetic algorithms ; Resistance )
Abstract:
S-boxes with better transparency order are expected to have higher side-channel resistance. For 8×8 S-boxes this is not practical, considering the costs of lookup-table implementations and deterioration of many properties like nonlinearity or delta uniformity. However, if we concentrate on the 4×4 S-box size we can observe that it is possible to obtain S-boxes with better transparency order while maintaining proper “classical” properties. To prove this, we experiment with PRINCE and PRESENT S-boxes. We use various methods and show that evolutionary algorithms are also viable in obtaining the lowest known transparency order value for the nonlinearity value of 4. Next, we show that affine transformation changes the transparency order while keeping “classical” properties intact. By using this technique, it is possible to generate optimal S-boxes with improved DPA-related properties.
Type of meeting: Predavanje
Type of presentation in a journal: Full-text (1500 words and more)
Type of peer-review: International peer-review
Original language: eng
Category: Znanstveni
Research fields:
Computer science
URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6855573
Contrib. to CROSBI by: Domagoj Jakobović (domagoj.jakobovic@fer.hr), 3. Kol. 2014. u 11:59 sati



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