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Designs, Codes and Cryptography

An International Journal

Designs, Codes and Cryptography OnlineFirst articles


On 2-parent-identifying set systems of block size 4

Parent-identifying set system is a kind of combinatorial structures with applications to broadcast encryption. In this paper we investigate the maximum number of blocks $$I_2(n,4)$$I2(n,4) in a 2-parent-identifying set system with ground set size …


On q-ary bent and plateaued functions

We obtain the following results. For any prime p the minimal Hamming distance between distinct regular p-ary bent functions of 2n variables is equal to $$p^n$$pn. The number of p-ary regular bent functions at the distance $$p^n$$pn from the …


A general framework for secondary constructions of bent and plateaued functions

In this work, we employ the concept of composite representation of Boolean functions, which represents an arbitrary Boolean function as a composition of one Boolean function and one vectorial function, for the purpose of specifying new secondary …

04.05.2020 Open Access

Revisiting Gilbert’s known-key distinguisher

Known-key distinguishers have been introduced by Knudsen and Rijmen in 2007 to better understand the security of block ciphers in situations where the key can not be considered to be secret, i.e. the “thing between secret-key model and hash …


Weierstrass semigroup at rational points in maximal curves which cannot be covered by the Hermitian curve

We determine the Weierstrass semigroup $$H(P_\infty ,P_1,\ldots ,P_m)$$H(P∞,P1,…,Pm) at several rational points on the maximal curves which cannot be covered by the Hermitian curve introduced in Tafazolian et al. (J Pure Appl Algebra …

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There is a great deal of activity in design theory, coding theory and cryptography and recently there has been considerable research done which brings together more than one of the subjects. Designs, Codes and Cryptography provides a forum for high quality papers of both a theoretical and a practical nature which bridge more than one of these areas, encouraging interaction between them. It emphasizes the algebraic and geometric aspects of design theory, coding theory and cryptography.

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