Abstract
Desktop grids, such as XtremWeb and BOINC, and service grids, such as EGEE, are two different approaches for science communities to gather huge computing power from a large number of computing resources. Nevertheless, little work has been done to combine these two Grids technologies in order to establish a seamless and vast grid resource pool. In this paper we address the security issues when bridging Service Grid with Desktop Grid. We first present how to bridge EGEE resources with our XtremWeb platform using the gliding-in mechanism. Then we describe a new Desktop Grid security model to bridge this anonymous environment to the strongly securized Service Grid one. Finally we describe an implementation of this security model in the XtremWeb middleware and report on performance evaluation.KeywordsDesktop GridService GridBOINCXtremWebSecurity
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