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Study on a Secure Access Model for the Grid
Study on a Secure Access Model for the Grid
Catalogue*
Bing XIE, Xiao-Lin GUI, Qing-Jiang WANG
Department of Computer Science and Technology, Xi’an Jiaotong University, 710049,
Xi’an, China
xiexiebing@
xlgui@
qjwang@
Abstract. To solve the security of access to meta-data in computational Grids,
by modifying model BLP, a secure access model named GBLP is introduced to
support access control to Grid catalogue. In the computational Grid, resources
and users can be endowed with different secure levels. Because Grid catalogue
is a logic map of all physical resources, and then, when different secure levels
are assigned to different users for catalogue access, the secure access control of
Grid resources can be implemented by controlling the access security of Grid
catalogue. In an experiment Grid (Wader Grid), the hierarchical access control
for Grid catalogue is implemented by using secure model GBLP.
1 Introduction
Computational Grids [1] are usually used to solve the wide-area computational
problems in heterogeneous systems interconnected by Internet. Except for dealing
with the computational problem, Grids can also provide services for users to share
computational data. In fact, most resources on Grids are open. Therefore, either in
large-scale parallel computing or in access to resources, the problem about security is
inevitable. For example, by cheating Grid Server, an untrusted user is able to login
and acquire computing resources, then run applications with virus. Under this
condition, G
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