SPKI Performance and Certificate Chain Reduction
Informatik bewegt: Informatik 2002 - 32. Jahrestagung der Gesellschaft für Informatik e.v. (GI)
Towards a Service-Oriented Ad Hoc Grid
ISPDC '04 Proceedings of the Third International Symposium on Parallel and Distributed Computing/Third International Workshop on Algorithms, Models and Tools for Parallel Computing on Heterogeneous Networks
Hot service deployment in an ad hoc grid environment
Proceedings of the 2nd international conference on Service oriented computing
Efficient support for enterprise delegation policies
Proceedings of the 2005 ACM symposium on Applied computing
ICWS '05 Proceedings of the IEEE International Conference on Web Services
A Trust-based Access Control Model for Virtual Organizations
GCCW '06 Proceedings of the Fifth International Conference on Grid and Cooperative Computing Workshops
Trust in large-scale computational grids: an SPKI/SDSI extension for representing opinion
Proceedings of the 4th international workshop on Middleware for grid computing
Supporting Decentralized, Security Focused Dynamic Virtual Organizations across the Grid
E-SCIENCE '06 Proceedings of the Second IEEE International Conference on e-Science and Grid Computing
Ad Hoc Grid Security Infrastructure
GRID '05 Proceedings of the 6th IEEE/ACM International Workshop on Grid Computing
HIPernet: A Decentralized Security Infrastructure for Large Scale Grid Environments
GRID '05 Proceedings of the 6th IEEE/ACM International Workshop on Grid Computing
A Classification of Emerging and Traditional Grid Systems
IEEE Distributed Systems Online
PathTrust: a trust-based reputation service for virtual organization formation
iTrust'06 Proceedings of the 4th international conference on Trust Management
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Secure environment is a top-priority for all the forms of grid computing. To establish trust, traditional grids use various methods, mostly centrally oriented ones, such as certification authorities, VO management servers or credentials pools. Ad hoc grids are characterized by the absence of a central trust authority; therefore collaborating entities must establish and maintain a trust relationship among themselves. The paper presents a short overview of ad hoc grids, the definitions as well as authentication and authorization mechanisms of the environment. We design a proposal of an authorization mechanism for faster and easier formation of virtual organizations in ad hoc grid based on SPKI delegation chains where the delegation chains act as trust chains, even if they do not refer to target users.