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dc.contributor.authorAmer Ramon, Rafael
dc.contributor.authorGiménez Pradales, José Miguel
dc.contributor.authorMagaña Nieto, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada II
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III
dc.date.accessioned2008-06-13T14:39:20Z
dc.date.available2008-06-13T14:39:20Z
dc.date.issued2008-06-13
dc.identifier.urihttp://hdl.handle.net/2117/2098
dc.description.abstractIn 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.
dc.format.extent27 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/es/
dc.subject.lcshInformation and Communication Applications, Inc.
dc.subject.otherCryptography
dc.subject.otherSecret Sharing Schemes
dc.subject.otherAccess Structures
dc.subject.otherAccessibility
dc.titleA probabilistic concept of accessibility for access structures
dc.typeExternal research report
dc.subject.lemacMatemàtica aplicada
dc.subject.lemacMatemàtiques -- Investigació
dc.subject.lemacComunicació
dc.subject.lemacInformació
dc.contributor.groupUniversitat Politècnica de Catalunya. GRTJ - Grup de Recerca en Teoria de Jocs
dc.subject.amsClassificació AMS::94 Information And Communication, Circuits::94A Communication, information
dc.rights.accessOpen Access
dc.relation.projectidcttMTM 2006-06064
dc.relation.projectidcttSGR 2005-00651
local.personalitzacitaciotrue


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Attribution-NonCommercial-NoDerivs 2.5 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 2.5 Spain