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1.
Karakterizacija posplošnih zlomljenih funkcij in nekatere druge kriptografske teme
Samir Hodžić, 2017, doktorska disertacija

Najdeno v: ključnih besedah
Povzetek najdenega: ...tap positions, (fast) algebraic attacks, algebraic immunity, derivatives, linear structures, planar mappings...
Ključne besede: generalized bent functions, Zq-bent functions, Gray maps, (relative) difference sets, (generalized) Marioana-McFarland class, stream ciphers, filtering generator, guess and determine cryptanalysis, tap positions, (fast) algebraic attacks, algebraic immunity, derivatives, linear structures, planar mappings
Objavljeno: 09.11.2017; Ogledov: 774; Prenosov: 11
URL Polno besedilo (0,00 KB)

2.
On derivatives of planar mappings and their connections to complete mappings
Amela Muratović-Ribić, Enes Pašalić, 2018, izvirni znanstveni članek

Opis: Given are necessary conditions for a permutation polynomial to be the derivative of a planar mapping. These conditions are not sufficient and there might exist permutation polynomials which are not derivatives of some planar mapping satisfying these conditions. For the first time we show that there is a close connection between two seemingly unrelated structures, namely planar and complete mappings. It is shown that any planar mapping induces a sequence of complete mappings having some additional interesting properties. Furthermore, a class of almost planar mappings over extension fields is introduced having the property that its derivatives are permutations in most of the cases. This class of functions then induces many infinite classes of complete mappings (permutations) as well.
Najdeno v: ključnih besedah
Povzetek najdenega: Zadetek v naslovu
Ključne besede: planar mapping, derivatives, complete mappings, permutation polynomials
Objavljeno: 19.12.2018; Ogledov: 481; Prenosov: 97
URL Polno besedilo (0,00 KB)

3.
Design methods for semi-bent functions
Enes Pašalić, Sugata Gangopadhyay, WeiGuo Zhang, Samed Bajrić, 2019, izvirni znanstveni članek

Opis: Semi-bent functions play an important role in the construction of orthogonal variable spreading factor codes used in code-division multiple-access (CDMA) systems as well as in certain cryptographic applications. In this article we provide several infinite classes of semi-bent functions, where each class is characterized by either a different decomposition of such a function with respect to the Walsh spectra of its subfunctions, or by the method used for its derivation. In particular, we also give the exact number of possibilities of decomposing bent functions, in a subclass of the Maiorana-McFarland class.
Najdeno v: ključnih besedah
Povzetek najdenega: ...cryptography, Boolean functions, bent functions, semi-bent functions, derivatives...
Ključne besede: cryptography, Boolean functions, bent functions, semi-bent functions, derivatives
Objavljeno: 19.12.2018; Ogledov: 859; Prenosov: 95
URL Polno besedilo (0,00 KB)

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