文章基本信息

标题：Ideal Homogeneous Access Structures Constructed from Graphs
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作者：J. Herranz
期刊名称：Journal of Universal Computer Science
印刷版ISSN：0948-6968
出版年度：2009
卷号：15
期号：14
出版社：Graz University of Technology and Know-Center
摘要：Starting from a new relation between graphs and secret sharing schemes introduced by Xiao, Liu and Zhang, we show a method to construct more general ideal homogeneous access structures. The method has some advantages: it efficiently gives an ideal homogeneous access structure for the desired rank, and some conditions can be imposed (such as forbidden or necessary subsets of players), even if the exact composition of the resulting access structure cannot be fully controlled. The number of homogeneous access structures that can be constructed in this way is quite limited; for example, we show that ( t , l )-threshold access structures can be constructed from a graph only when t = 1, t = l - 1 or t = l .
关键词：cryptography, graph connectivity, ideal secret sharing