Towards a theory of declarative knowledge
Foundations of deductive databases and logic programming
On the declarative semantics of deductive databases and logic programs
Foundations of deductive databases and logic programming
Handbook of theoretical computer science (vol. B)
The well-founded semantics for general logic programs
Journal of the ACM (JACM)
Role-Based Access Control Models
Computer
The meaning of negative premises in transition system specifications
Journal of the ACM (JACM)
An access control model supporting periodicity constraints and temporal reasoning
ACM Transactions on Database Systems (TODS)
The Semantics of Predicate Logic as a Programming Language
Journal of the ACM (JACM)
Proposed NIST standard for role-based access control
ACM Transactions on Information and System Security (TISSEC)
Certificate chain discovery in SPKI?SDSI
Journal of Computer Security
Can We Eliminate Certificate Revocations Lists?
FC '98 Proceedings of the Second International Conference on Financial Cryptography
Distributed credential chain discovery in trust management
Journal of Computer Security
Design of a Role-Based Trust-Management Framework
SP '02 Proceedings of the 2002 IEEE Symposium on Security and Privacy
Beyond Proof-of-Compliance: Safety and Availability Analysis in Trust Management
SP '03 Proceedings of the 2003 IEEE Symposium on Security and Privacy
Recent-secure authentication: enforcing revocation in distributed systems
SP '95 Proceedings of the 1995 IEEE Symposium on Security and Privacy
Decentralized Trust Management
SP '96 Proceedings of the 1996 IEEE Symposium on Security and Privacy
Managing Policy Updates in Security-Typed Languages
CSFW '06 Proceedings of the 19th IEEE workshop on Computer Security Foundations
Certificate revocation and certificate update
SSYM'98 Proceedings of the 7th conference on USENIX Security Symposium - Volume 7
Credential chain discovery in RTTtrust management language
MMM-ACNS'10 Proceedings of the 5th international conference on Mathematical methods, models and architectures for computer network security
The semantics of role-based trust management languages
CEE-SET'09 Proceedings of the 4th IFIP TC 2 Central and East European conference on Advances in Software Engineering Techniques
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The topic of this paper is the rôle-based trust-management language RT0, a formalism inspired by logic programming that handles trust in large scale, decentralised systems. We provide a purely operational semantics for the language in which credentials can be established using a simple set of inference rules. We then extend RT0to include time validity and boolean guards that control the availability of credentials. In such an extended framework, credentials are conditional on the availability of supporting credentials in the execution context. In addition to a set-theoretic and a logic-programming semantics, we develop for the extended language a series of increasingly powerful inference systems for establishing these conditional credentials. By means of simple but realistic examples, we demonstrate the expressiveness and usability of our language, warranting its integration into existing trust-management tools