期刊
DESIGNS CODES AND CRYPTOGRAPHY
卷 91, 期 3, 页码 971-995出版社
SPRINGER
DOI: 10.1007/s10623-022-01133-0
关键词
Bent-negabent function; Nega-Hadamard transform; Secondary construction; Walsh-Hadamard transform; Bent function
In this paper, three secondary methods for constructing bent-negabent functions under different frameworks are presented. The necessary and sufficient conditions for generating these functions are analyzed. Several constructions are proposed based on these frameworks.
In this paper, we present three secondary methods for constructing bent-negabent functions under the frameworks of the indirect sum construction (proposed by Carlet in 2004), the modified indirect sum construction (proposed by Hod.zi ' c et al in Des Codes Cryptogr 88(10):2007-2035, 2020) and Rothaus' construction. We first give a construction of bent-negabent functions by using the indirect sum construction, and specify some sufficient conditions on initial functions so that these constructed functions are provably outside the completed Maiorana-McFarland class. Here, we correct some results on the construction of bent-negabent functions proposed by Zhang et al. (IEEE Trans Inf Theory 61(3):1496-1506, 2015). Then, we investigate the nega-Hadamard transform of the composition of a multioutput function and a Boolean function. Using this tool, with initial primary bent-negabent functions, we analyze and find out the necessary and sufficient conditions for the modified indirect sum construction and Rothaus' construction to generate bent-negabent functions. Furthermore, by developing methods to obtain initial functions satisfying the required necessary and sufficient conditions, we propose several constructions of bent-negabent functions under these two frameworks of the secondary constructions.
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