本文基于安全策略的分层管理模型，提出了一个集目标求精和实体求精为一体的安全策略逐级求精算法。

Integrated with goal refinement method and entity refinement method, an algorithm of policy refinement is proposed in this paper on the basis of layered-policy model for security policy.

youdao

本文基于安全策略的分层管理模型，提出了一个集目标求精和实体求精为一体的安全策略逐级求精算法。

Integrated with goal refinement method and entity refinement method, an algorithm of policy refinement is proposed in this paper on the basis of layered-policy model for security policy.

youdao