A Framework for Distributed Trust Management
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http://ccs.mit.edu/dell/aa2001/aa2001papers/paper4.pdfPermanent Link
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Show full item recordDate
2001Type of Work
11 pagesText
conference papers and proceedings
Rights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Subjects
authorizationsecurity
distributed trust
agents
X.509 certificates
knowledge representation
role based
UMBC Ebiquity Research Group
Abstract
This paper discusses our infrastructure for handling distributed security and trust. It outlines a method for access control
across domains that handles complex inter domain trust relationships. We have developed a flexible representation of trust
information in Prolog, that can model permissions and delegations. We are currently working on modeling obligations,
entitlements, and prohibitions as well. This paper describes a scheme for restricting re-delegation without using a specific
delegation depth. Using examples, this paper explains the internal working of our system and the trust information that flows
within it.