Dirichlet product for boolean functions

Authors

Abderrahmane Nitaj, Universite de Caen
Willy Susilo, University of WollongongFollow
Joseph Tonien, University of WollongongFollow

RIS ID

108435

Publication Details

Nitaj, A., Susilo, W. & Tonien, J. (2016). Dirichlet product for boolean functions. Journal of Applied Mathematics and Computing, 55 293-312.

Abstract

Boolean functions play an important role in many symmetric cryptosystems and are crucial for their security. It is important to design boolean functions with reliable cryptographic properties such as balancedness and nonlinearity.Most of these properties are based on specific structures such as Möbius transform and Algebraic Normal Form. In this paper, we introduce the notion of Dirichlet product and use it to study the arithmetical properties of boolean functions.We showthat,with theDirichlet product, the set of boolean functions is an Abelian monoid with interesting algebraic structure. In addition, we apply the Dirichlet product to the sub-family of coincident functions and exhibit many properties satisfied by such functions.