The aim of this paper is to find cellular automata (CA) rules that are used to describe S-boxes with good cryptographic properties and low implementation cost. Up to now, CA rules have been used in several ciphers to define an S-box, but in all those ciphers, the same CA rule is used. This CA rule is best known as the one defining the Keccak χ transformation. Since there exists no straightforward method for constructing CA rules that define S-boxes with good cryptographic/implementation properties, we use a special kind of heuristics for that -- Genetic Programming (GP). Although it is not possible to theoretically prove the efficiency of such a method, our experimental results show that GP is able to find a large number of CA rules that define good S-boxes in a relatively easy way. We focus on the 4 x 4 and 5 x 5 sizes and we implement the S-boxes in hardware to examine implementation properties like latency, area, and power. Particularly interesting is the internal encoding of the solutions in the considered heuristics using combinatorial circuits; this makes it easy to approximate S-box implementation properties like latency and area a priori.
Picek, S., Mariot, L., Yang, B., Jakobovic, D., & Mentens, N. (2017). Design of S-boxes defined with cellular automata rules. In ACM International Conference on Computing Frontiers 2017, CF 2017 (pp.409-414). Association for Computing Machinery, Inc.
|Citazione:||Picek, S., Mariot, L., Yang, B., Jakobovic, D., & Mentens, N. (2017). Design of S-boxes defined with cellular automata rules. In ACM International Conference on Computing Frontiers 2017, CF 2017 (pp.409-414). Association for Computing Machinery, Inc.|
|Carattere della pubblicazione:||Scientifica|
|Presenza di un coautore afferente ad Istituzioni straniere:||Si|
|Titolo:||Design of S-boxes defined with cellular automata rules|
|Autori:||Picek, S; Mariot, L; Yang, B; Jakobovic, D; Mentens, N|
MARIOT, LUCA (Secondo)
|Data di pubblicazione:||2017|
|Nome del convegno:||ACM International Conference on Computing Frontiers 2017|
|Appare nelle tipologie:||02 - Intervento a convegno|