Special values of Kloosterman sums and binomial bent functions
Special values of Kloosterman sums and binomial bent functions
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DOI:
10.1016/j.ffa.2016.06.001
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发表时间:
2013-12
期刊:
影响因子:
--
通讯作者:
Chunming Tang;Yanfeng Qi
中科院分区:
文献类型:
--
作者:
Chunming Tang;Yanfeng Qi
Let p≥ 7 and q= p m. K q (a)=∑ x∈ F p m ζ Tr 1 m (x p m− 2+ a x) is the Kloosterman sum of a on F p m, where ζ= e 2 π− 1 p. The value 1− 2 ζ+ ζ− 1 of K q (a) and its conjugate have close relationship with a class of binomial functions with Dillon exponent. This paper first presents some necessary conditions for a such that K q (a)= 1− 2 ζ+ ζ− 1. Further, we prove that if p= 11, for any a, K q (a)≠ 1− 2 ζ+ ζ− 1. And for p≥ 13, if a∈ F p s and s= gcd (2, m), K q (a)≠ 1− 2 ζ+ ζ− 1. In application, these results explain that some class of binomial regular bent functions does not exist.