Abstract
Data grid system supports uniform and secure access of heterogeneous distributed data resources across a range of administrative domains, each with its own local security policy. The security challenge has been a focus in a data grid environment. This paper mainly presents GridDaEn’s security mechanisms. In addition to the basic authentication and authorization functionality, it provides an integrated security strategy featured by shared context-based secure channel building to leverage security processing efficiency so as to improve interaction performance occurring among multiple domains in GridDaEn. Meanwhile, by means of proxy credential single-sign-on across multiple domains can be achieved. Experiments show that this approach can guarantee system security and reliability with great performance enhancement.
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