Naslov
A New Cost Function for Evolution of S-Boxes

Autori
Picek, Stjepan ; Čupić, Marko ; Rotim, Leon

Izvornik
Evolutionary computation (1063-6560) 24 (2016), 4; 695-718

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Evolutionary algorithms ; S-boxes ; Cryptography ; Fitness function ; Solution representation

Sažetak
Substitution Boxes (S-boxes) play an important role in many modern-day cryptographic algorithms, more commonly known as ciphers. Without carefully chosen Sboxes, such ciphers would be easier to break. Therefore, it is not surprising that the design of suitable S-boxes attracts a lot of attention in the cryptography community. The evolutionary computation (EC) community also had several attempts using evolutionary paradigms to evolve S-boxes with good cryptographic properties. This paper focuses on a fitness function one should use when evolving highly nonlinear S-boxes. After an extensive experimental analysis of the current state-of-the-art fitness functions, we present a new one that offers higher speed and better results when compared with the aforementioned fitness functions.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

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