本文给出了服务计算的安全模型，分析了这种应用逻辑与安全策略分离的基于信任域的安全模型的主要思想和优点。
A security model of services computing is presented in this paper. Main idea and advantages of trust domain based security model are analyzed.
现有的网格安全体系GSI主要是通过公钥体系及建立在其上的分布式信任模型来建立与维护虚拟组织内部的安全策略空间。
Current grid security infrastructure establishes the security policy space inside a VO mainly on basis of the public key infra-structure and distributed trust model.
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