Proxy Certificates(PCs) is one of key mechanisms in Grid Security Infrastructure(GSI).Users need PCs to access grid services.Butthere is no effective mechanism to manage the PCs in GSI.

• 代理证书是网格安全基础设施(GSI)中关键机制之一,用户需要通过代理证书访问网格服务,但目前的GSI方案中缺乏有效的代理证书管理机制。