Hypergraphs of multiparty secrets

  • Authors:
  • Sara Miner More;Pavel Naumov

  • Affiliations:
  • Department of Mathematics and Computer Science, McDaniel College, Westminster, Maryland;Department of Mathematics and Computer Science, McDaniel College, Westminster, Maryland

  • Venue:
  • CLIMA'10 Proceedings of the 11th international conference on Computational logic in multi-agent systems
  • Year:
  • 2010

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Abstract

The paper considers interdependencies between secrets in a multiparty system. Each secret is assumed to be known only to a certain fixed set of parties. These sets can be viewed as edges of a hypergraph whose vertices are the parties of the system. The main result is a complete and decidable logical system that describes interdependencies that may exist on a fixed hypergraph. The properties of interdependencies are defined through a multi-argument relation called independence, which is a generalization of a binary relation also known as non deducibility.