Distributed credential chain discovery in trust management*
نویسندگان
چکیده
منابع مشابه
Distributed Credential Chain Discovery in Trust Management
We introduce a simple Role-based Trust-management language RT0 and a set-theoretic semantics for it. We also introduce credential graphs as a searchable representation of credentials in RT0 and prove that reachability in credential graphs is sound and complete with respect to the semantics of RT0. Based on credential graphs, we give goal-directed algorithms to do credential chain discovery in R...
متن کاملDistributed Credential Chain Discovery in Trust
We give goal-oriented algorithms for discovering credential chains in RT0, a role-based trust-management language introduced in this paper. The algorithms search credential graphs, a representation of RT0 credentials. We prove that evaluation based on reachability in credential graphs is sound and complete with respect to the set-theoretic semantics of RT0. RT0 is more expressive than SDSI 2.0,...
متن کاملDistributed Credential Chain Discovery in Trust-Management with Parameterized Roles
Trust management (TM) is an approach to access control in decentralized distributed systems with access control decisions based on statements made by multiple principals. Li et al. developed the RT family of Role-Based Trust-management languages, which combine the strengths of Role-Based Access Control and TM systems. We present a distributed credential chain discovery algorithm for RT C 1 , a ...
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Increased connectivity and data availability enable new ways of conducting business, but they also create new security vulnerabilities. For example, to streamline a financial transaction, an organization might want to give certain strangers — that is, parties from outside its security domain — access to some of its local resources. Before doing so, however, the organization must establish firm ...
متن کاملCredential Networks: a General Model for Distributed Trust and Authenticity Management
In large open networks, handling trust and authenticity adequately is an important prerequisite for security. In a distributed approach, all network users are allowed to issue various types of credentials, e.g. certificates, recommendations, revocations, ratings, etc. This paper proposes such a distributed approach, in which the evaluation of trust and authenticity is based on so-called credent...
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ژورنال
عنوان ژورنال: Journal of Computer Security
سال: 2003
ISSN: 1875-8924,0926-227X
DOI: 10.3233/jcs-2003-11102