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The semantics of role-based trust management languages

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Abstract

Role-based Trust management (RT) languages are used for representing policies and credentials in decentralized, distributed access control systems. RT languages combine trust management and role-based access control features. A credential provides information about the keys, rights and qualifications from one or more trusted authorities. The paper presents a set-theoretic semantics of Role-based Trust management languages, which maps a role to a set of sets of entity names. The semantics applies not only to the basic language of the family RT 0, but also to a much more sophisticated RT T , which provides manifold roles and role-product operators to express threshold and separation-of-duty policies. A manifold role defines sets of entities whose cooperation satisfies the manifold role. It enables to express a such a condition, which need more than one member of a role to effectively fulfill the particular task. © 2012 Springer-Verlag.

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APA

Felkner, A., & Sacha, K. (2012). The semantics of role-based trust management languages. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 7054 LNCS, pp. 179–189). https://doi.org/10.1007/978-3-642-28038-2_14

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