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dc.contributor.authorHerald, S.
dc.contributor.authorClarke, S.
dc.contributor.authorChristianson, B.
dc.date.accessioned2011-01-31T11:11:57Z
dc.date.available2011-01-31T11:11:57Z
dc.date.issued2010
dc.identifier.citationHerald , S , Clarke , S & Christianson , B 2010 , ' A non-transitive trust model for key distribution ' , Journal of Information Assurance and Security , vol. 5 , no. 6 , pp. 618-625 .
dc.identifier.issn1554-1010
dc.identifier.otherdspace: 2299/5250
dc.identifier.urihttp://hdl.handle.net/2299/5250
dc.descriptionOriginal article can be found at: http://www.mirlabs.org/jias/index.html
dc.description.abstractKey distribution mechanisms such as PKI or PGP implicitly assume trust to be transitive. This can be a problematic assumption. The user relies indirectly (often implicitly) on the remote entities to satisfy its trust requirements. In fact, over the years trust has been a much debated topic in the electronic world. In our view, trust is most usefully modeled as non-transitive and subjective to the user. This paper explores a novel way to address the well known asymmetric key distribution problem in the electronic world by mitigating the subjective risk of the user. We extend the conventional PKI and PGP models by deploying a recently introduced concept called trust*. Trust* is a way of building on existing trust relationships using an electronic equivalent of real-world guarantees so as to avoid the need for transitive trust. This application of trust* provides a flexible way to bridge the gap between the two unknown entities through the use of localized guarantees. Our model allows trust* to replace the need for transitive trust in PKI or PGP and thus reduce the perceived risk of the user in key distribution.en
dc.format.extent533744
dc.language.isoeng
dc.relation.ispartofJournal of Information Assurance and Security
dc.titleA non-transitive trust model for key distributionen
dc.contributor.institutionSchool of Computer Science
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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