对于云交付模型，使用者对部署的应用程序、操作系统、硬件、软件、存储和网络的控制能力不同，这会影响云安全策略。
It is influenced by how much control a consumer can have over deployed applications, operating systems, hardware, software, storage and networking for a cloud delivery model.
接着在此基础上介绍安全策略协商模型的系统结构，主要包含协商协议，协商对象，协商策略等部分。
Then it gives the structure of security policy negotiation model including negotiation protocol, negotiation object and negotiation tactics etc.
安全数据库管理系统的安全策略可以为数据库提供强大的安全功能，现在BLP模型是用得比较普遍的策略模型之一。
The security policy of security database management system provides the powerful security function to database. The model of BLP is one of common security policy model.
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