基于多部访问结构的理想的秘密共享方案

Ideal Secret Sharing Schemes with Multipartite Access Structure

在多部访问结构中,参与者集合被分为m个子集,同一子集中的参与者在系统中起到相同的作用。文章介绍了多部访问结构的概念,构造了一种三部访问结构,并通过向量空间构造法从理论上证明了该三部访问结构是理想的访问结构。通过该文提出的方法,可以很容易地将三部访问结构的结论推广到多部访问结构。

In a muhipartite access structure,the set of participants is partitioned in m subsets and all participants in the same subset play an equivalent role. The conception of multipartite access structure is introduced in this paper. A tripartite access structure is constructed. By the vector space method,it is shown that the tripartite access structure is ideal access structure. Finally,the conclusion of tripartite access structure is generalized to multipartite access structure.