Research On Relationship Of Trust And Access Control Of Grid Security

As openness of the grid environment, whether to large-scale parallel computing, or to information sharing and interoperability, there will be a wide range of security issues. And the Grid-domain management, heterogeneous, dynamic characteristics, making trust management and access control different network environment, Grid security has become the hotspot.In this paper, the research status of the grid security is described; the typical grid security technology and related network technology are elaborated. According to Grid security characteristics, relations of trust is introduced into the Grid security system, then the two key issues in system ~ trust management and access control are studied.Based on the grid characteristics, the paper introduces the definition of ternary relationship of trust which is applicable to the grid; put forward an improved cross-domains trust model, including the trust relationships between entities in the same autonomous domain and in different domains, focus on the trust relationships in different domains, as well as research the relationship of trust measurement, transfer and consolidation process useful.After detailed analysis for currently RBAC model, according to the Grid characteristics, put forward an improved dynamic RBAC model based on trust, and improve the traditional role of inheritance mechanism by object-oriented thinking.