A probabilistic concept of accessibility for access structures

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Título:	A probabilistic concept of accessibility for access structures
Autor/a:	Amer Ramon, Rafael; Giménez Pradales, José Miguel; Magaña Nieto, Antonio
Otros autores:	Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada II; Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III; Universitat Politècnica de Catalunya. GRTJ - Grup de Recerca en Teoria de Jocs
Abstract:	In this paper we introduce the concept of weighted accessibility for access structures. In some sense, it represents a measure of how difficult or how easy is to recover the secret. We give also a numerical measure of accessibility for each participant depending on his position in the access structure. Both concepts, the accessibility of the access structure and the accessibility of the participants are closely related. We also provide an axiomatic characterization of the weighted accessibility for access structures based on four simple properties.
Materia(s):	-Information and Communication Applications, Inc. -Cryptography -Secret Sharing Schemes -Access Structures -Accessibility -Matemàtica aplicada -Matemàtiques -- Investigació -Comunicació -Informació -Classificació AMS::94 Information And Communication, Circuits::94A Communication, information
Derechos:	Attribution-NonCommercial-NoDerivs 2.5 Spain http://creativecommons.org/licenses/by-nc-nd/2.5/es/
Tipo de documento:	Informe
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