Applied cryptography (2nd ed.): protocols, algorithms, and source code in C
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ICDCS '02 Proceedings of the 22 nd International Conference on Distributed Computing Systems (ICDCS'02)
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ICNP '01 Proceedings of the Ninth International Conference on Network Protocols
ITCC '04 Proceedings of the International Conference on Information Technology: Coding and Computing (ITCC'04) Volume 2 - Volume 2
The Grid 2: Blueprint for a New Computing Infrastructure
The Grid 2: Blueprint for a New Computing Infrastructure
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IEEE Transactions on Computers
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GCC'05 Proceedings of the 4th international conference on Grid and Cooperative Computing
Dividing grid service discovery into 2-stage matchmaking
ISPA'04 Proceedings of the Second international conference on Parallel and Distributed Processing and Applications
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International Journal of Business Information Systems
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Multiagent and Grid Systems
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Abstract: This paper studies the resource discovery problem in a Grid system, in which global trust values play a crucial role. The proposed mechanism suggests that routers and resources comprise virtual organizations (VOs) within a Grid system, where a router controls locally a number of resources in each virtual organization. Global trust values are assigned to the system's VOs. These trust values show whether a VO and subsequently its local resources are trustworthy or not. Our primary goal is to discover the appropriate resource for a specific request and then effectively direct this request to a trustworthy VO that controls locally the appropriate resource. Furthermore, the trust-aware resource discovery mechanism also manages the cases of dynamic changes in the trustworthiness of VOs. For instance, VOs that in the past were untrustworthy could now be trustworthy. The proposed mechanism is capable of detecting these dynamic changes, so that the directing of requests occurs in an up-to-date way. Finally, this paper presents the performance evaluation of the proposed trust-aware resource discovery mechanism by providing a number of simulation tests in Grid systems of different sizes.