Those include functional modules, related data structure, frames of message encoding, certificate management database, ring of keys, concrete information flows for access control and so on.
完整设计了模型的整个可实现框架：包括各组成模块的功能、相关数据结构和消息编码格式、证书管理库和密钥环的设计，以及具体的访问控制流程等。
The general framework is divided into message center, management center, RID and SID, four functional modules, and each part is connected by transiting access or managing network.
二是对网管中心的功能结构，模块划分、业务实现和相关设备等进行了技术对比和分析设计；
The general framework is divided into message center, management center, RID and SID, four functional modules, and each part is connected by transiting access or managing network.
二是对网管中心的功能结构，模块划分、业务实现和相关设备等进行了技术对比和分析设计；
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