A Trust-based Access Control Model for Virtual Organizations

摘要：

Virtual organizations normally use role-based access control mechanisms to assign permissions that allow users to access resources or services.Role-based access control mechanisms, however,have three limitations. First, as only one type of trust relationship -resource trusts role-exists in the mechanisms, more trust relationships that support more types of access controls in virtual organizations can not be established. Second, as roles are created in and limited to specific collaborative work places,the permissions only take effects in the local work places, and no global permissions can be set up.Finally, the attributes of users or groups, as important resources, have no control in the mechanisms. In other words, those attributes can not be released to any other user or group. To overcome these limitations, our research provides a trust-based access control model for virtual organizations. This paper presents the model, algorithm,implementations, and experimental results.

作者: Aizhong Lin Erik Vullings James Dalziel

作者单位: MELCOE, Macquarie University Sydney, NSW 2109, Australia

会议类型: 国际会议

会议名称: 第五届网格与协同计算国际会议(The Fifth International Conference on Grid and Cooperative Computing GCC 2006)

会议地点: 长沙

会议语种:英文

页码: 557-564

在线出版日期: 2006-10-21（万方平台首次上网日期，不代表论文的发表时间）