Tuesday 23 February 2010

Wseas Transactions

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Transactions: WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS
Transactions ID Number: 42-374
Full Name: V. Vijayakumar
Position: Researcher
Age: ON
Sex: Male
Address: 33, Arcot Road, Saligramam, Chennai.
Country: INDIA
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E-mail address: vijayakumarphd@yahoo.com
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Title of the Paper: An Efficient Approach Based On Trust and Reputation for Secured Selection of Grid Resources
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Number of paper pages: 11
Abstract: Security is a principal concern in offering an infrastructure for the formation of general purpose computational grids. A number of grid implementations have been devised to deal with the security concerns by authenticating the users, hosts and their interactions in an appropriate fashion. Resource management systems that are sophisticated and secured are inevitable for the efficient and beneficial deployment of grid computing services. The chief factors that can be problematic in the secured selection of grid resources are the wide range of selection and the high degree of strangeness. Moreover, the lack of a higher degree of confidence relationship is likely to prevent efficient resource allocation and utilization. In this paper, we present an efficient approach for the secured selection of grid resources, so as to achieve secure execution of the jobs. This approach utilizes trust and reputation for securely selecting the grid resources. To start with, the self-!
protection capability and reputation weightage of all the entities are computed and based on those values, the Trust Factor (TF) of all the entities are determined. The reputation weightage of an entity is the measure of both the user's feedback and other entities' feedback. Those entities with higher TF values are selected for the secured execution of jobs. To make the proposed approach more comprehensive, a novel method is employed for evaluating the user's feedback on the basis of the existing feedbacks available regarding the entities. This approach is proved to be scalable for an increased number of user jobs and grid entities. The experimentation portrays that this approach offers desirable efficiency in the secured selection of grid resources.
Keywords: Grid Computing, Computational Grids, Security, Resource Management, Resource Selection, Trust, Self-Protection Capability, Reputation, Feedback Evaluation.
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