An Authorization Model Based on SPKI Certificate in Grid
网格环境中一种基于SPKI证书的授权模型

Resource on authorization problem in grid environment is a hot topic in grid security. The Community Authorization Service, CAS, is an authorization mechanism of Grid Security Infrastructure, GSI. For resources in CAS authorization mechanism can only provide a course-grained authorization to CAS server, which is difficult to control authorization of client. A new authorization model which adopts SPKI certificate is proposed. Compared with CAS, this authorization model is more flexible, it improves scalability of the authorization system using delegation and can give fine-grained access control to client.