Title
Observations on the SIMON block cipher family.
Abstract
In this paper we analyse the general class of functions underlying the SIMON block cipher. In particular, we derive efficiently computable and easily implementable expressions for the exact differential and linear behaviour of SIMON-like round functions. Following up on this, we use those expressions for a computer aided approach based on SAT/SMT solvers to find both optimal differential and linear characteristics for SIMON. Furthermore, we are able to find all characteristics contributing to the probability of a differential for SIMON32 and give better estimates for the probability for other variants. Finally, we investigate a large set of SIMON variants using different rotation constants with respect to their resistance against differential and linear cryptanalysis. Interestingly, the default parameters seem to be not always optimal.
Year
DOI
Venue
2015
10.1007/978-3-662-47989-6_8
ADVANCES IN CRYPTOLOGY, PT I
Keywords
Field
DocType
SIMON,Differential cryptanalysis,Linear cryptanalysis,Block cipher,Boolean functions
Transposition cipher,Discrete mathematics,3-Way,Block cipher,Computer science,Stream cipher,Substitution cipher,Polyalphabetic cipher,Two-square cipher,Differential cryptanalysis
Journal
Volume
ISSN
Citations 
9215
0302-9743
31
PageRank 
References 
Authors
1.18
10
3
Name
Order
Citations
PageRank
Stefan Kölbl1906.62
Gregor Leander2128777.03
Tyge Tiessen3614.11