ACM SIGAda Ada Letters
Fine-Grain Authorization for Resource Management in the Grid Environment
GRID '02 Proceedings of the Third International Workshop on Grid Computing
DATALOG with Constraints: A Foundation for Trust Management Languages
PADL '03 Proceedings of the 5th International Symposium on Practical Aspects of Declarative Languages
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
A Community Authorization Service for Group Collaboration
POLICY '02 Proceedings of the 3rd International Workshop on Policies for Distributed Systems and Networks (POLICY'02)
Certificate-based authorization policy in a PKI environment
ACM Transactions on Information and System Security (TISSEC)
Security analysis in role-based access control
Proceedings of the ninth ACM symposium on Access control models and technologies
Comparison of Advanced Authorisation Infrastructures for Grid Computing
HPCS '05 Proceedings of the 19th International Symposium on High Performance Computing Systems and Applications
Globus toolkit version 4: software for service-oriented systems
NPC'05 Proceedings of the 2005 IFIP international conference on Network and Parallel Computing
TrustBus'10 Proceedings of the 7th international conference on Trust, privacy and security in digital business
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Grid technology concerns the sharing of resources among a very large set of users. One of the main security issues of the Grid environment concerns the user authorization. As a matter of fact, Grid resource providers grant accesses to their resources to possibly unknown Grid users, but they want that these accesses are regulated by proper security policies. This paper proposes a framework that integrates an advanced authorization system, the RTML one, in the Globus toolkit. For each Grid user that requests to access the Grid resource, the framework determines the proper set of rights to be paired to the user depending on the trust he previously collected interacting with other sites on the Grid, instead of simply considering his identity. This trust is represented by the set of credentials issued by other Grid sites that grant to the user some roles in these sites.