On the Symmetric Negabent Boolean Functions
On the Symmetric Negabent Boolean Functions
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DOI:
10.1007/978-3-642-10628-6_9
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发表时间:
2009-12
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影响因子:
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通讯作者:
Sumanta Sarkar
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文献类型:
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作者:
Sumanta Sarkar
We study the negabent Boolean functions which are symmetric. The Boolean function which has equal absolute spectral values under the nega-Hadamard transform is called a negabent function. For a bent function, the absolute spectral values are the same under the Hadamard-Walsh transform. Unlike bent functions, negabent functions can exist on odd number of variables. Moreover, all the affine functions are negabent.We prove that a symmetric Boolean function is negabent if and only if it is affine.