PMI体系和模型的核心内容是实现授权与访问控制的有效管理。
The important content of PMI(Privilege Management Infrastructure) and model is to realize the efficient management of authorization and access control.
HIS系统涵盖了诸多医疗隐私信息，因此它既要实现对此类信息的灵活授权与访问控制，又要具备充分的隐私保护机制。
Since HIS System covers a wide range of Medical Privacy, it must provide flexible Authorization and Access Control as well as perfect protection mechanism for Medical Privacy.
为实现信息系统的安全目标，需要系统能够提供相关的安全服务：身份标识与认证服务、授权与访问控制服务、非否认服务、机密性服务、完整性服务。
Services such as identification and authentication, authority and access control, non-deniability, confidentiality and integrity are the key elements for the security of the information system.
（在本例中，我只能通过编程方式访问它，因为与所有内容关联的默认访问控制被设置为拒绝任何未授权访问）。
And in this case, I can only access it programmatically, because the default access controls associated with everything are set to deny any noncredentialed access to it.
分析ISO10181访问控制框架与权限管理基础设施PMI，提出了跨信任域的授权模型CTRA。
The ISO10181 access control framework and the Privilege Management Infrastructure PMI are analyzed, and a Cross Trust Regions Authorization Framework(CTRA) is designed.
该文介绍了RBAC与代理机制相结合所带来的授权问题，在定义了角色屏蔽概念的基础上，提出了面向代理机制的角色访问控制模型。
This paper discusses the authorization problem and defines the conception of covered role, presents a proxy mechanism oriented role-based access control (PRBAC) model.
身份认证与网络访问控制验证用户的合法身份，授权网络资源的访问。
Authentication and network access control system verifies users legal identity and authorizes network resources access.
访问控制粒度指明系统为用户授权的层次，如目录级授权与文件级授权等。
Access control granularity specifies the authorization level which administrative domain provides service for users, such as directory authorization level, file authorization level etc.
访问控制粒度指明系统为用户授权的层次，如目录级授权与文件级授权等。
Access control granularity specifies the authorization level which administrative domain provides service for users, such as directory authorization level, file authorization level etc.
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