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Distributed GIS system's data security, especially access control, has become an indispensable function component in the practical application of distributed system. However, current approaches to access control are mostly based on individual user identity; hence they do not scale to distributed systems. In this paper, a new access control mechanism which is the combination of trust and role-based...
Since Role-Based Access Control (RBAC) shows great advantage in meeting the security need in large-scale and enterprise-wide system, RBAC becomes the hot topic in access control research field. However, current approaches to access control are mostly based on individual user identity; hence they do not scale to distributed systems. So, the paper analyses RBAC could not satisfy dynamic access control...
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