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研究了Nega-Hadamard变换的一些性质,如Nega-Hadamard变换和nega互相关的关系等。同时,给出了一类由级联方法得到的特殊形式的布尔函数,分析了它的Nega-Hadamard变换。基于该函数的Nega-Hadamard变换的研究结果,得到了一类由两个n元negabent函数构造的n+2元negabent函数。
We study some properties of Nega-Hadamard transform, such as the relationship between Nega-Hadamard transform and nega cross-correlation. At the same time, a special form of Boolean function obtained by cascade method is given and its Nega-Hadamard transform is analyzed. Based on the results of the Nega-Hadamard transformation of this function, a class of n + 2 -negative negabent functions constructed by two n-ary negabent functions is obtained.