Date Added: Jun 2011
In this paper, the authors described four layer architecture of Grid Computing System, analyzes security requirements and problems existing in Grid Computing System. This paper presents a new approach of five layer security architecture of Grid Computing System, defines a new set of security policies & gives the representation. State of the art and emerging scientific applications requires high performance computing. It is not possible to solve large quantities of data and problems using a single high performance computer or a single computer cluster.