Constructions of linear codes with two or three weights from vectorial dual-bent functions

Linear codes with few weights are an important class of codes in coding theory and have attracted a lot of attention. In this paper, we present several constructions of q-ary linear codes with two or three weights from vectorial dual-bent functions, where q is a power of an odd prime p. The weight distributions of the constructed q-ary linear codes are completely determined. We illustrate that some known constructions in the literature can be obtained by our constructions. In some special cases, our constructed linear codes can meet the Griesmer bound. Furthermore, based on the constructed q-ary linear codes, we obtain secret sharing schemes with interesting access structures.