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Ključne besede: Boolean functions, disjoint codes, disjoint spectra functions, vectorial semi-bent functions, fiestel ciphers
Objavljeno v RUP: 09.11.2021; Ogledov: 1204; Prenosov: 23
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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.
Ključne besede: cryptography, Boolean functions, bent functions, semi-bent functions, derivatives
Objavljeno v RUP: 18.12.2018; Ogledov: 3995; Prenosov: 173
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