This paper mainly introduces the application of rbac - based access control mechanism in library so as to provide some reference for digital library construction 文中主要介绍了基于rbac技术的访问控制机制在数字图书馆中的应用，拟对现代数字图书馆的建设有所贡献。
This paper analyses the access control research actuality and problems for active node resources , and designs the safety and security architecture of access control for active node resources 分析了主动节点资源访问的研究现状和存在的问题，设计了一种主动节点资源访问控制机制。
As a result , there is an urgent need for access control in an ethernet environment , and finally in 2001 , the standard of 802 . 1x was defined by an ieee 802 working group 在这样的背景下， 802 . 1x标准应运而生，从而为以太网环境提供了一种标准的基于端口的访问控制机制和认证手段。
In this thesis , concurrency control mechanism is studied in depth which is used when multiple users access sharing data simultaneously . access control mechanism is also discussed 本文深入研究协同设计中的多个用户同时访问共享资源时所采用的并发控制机制，并对访问控制机制进行了探讨。
It enhanced a series of security and access control mechanisms based on previous version , to solve the security problem of snmp , and defined an integrated architecture of snmp 它在前面版本的基础上定义了一套安全与访问控制机制,解决了一直困扰snmp的安全问题,并且为snmp定义了完整的体系结构。
Through researching on various access control mechanisms , an authorization management approach is introduced which combine discretionary access control with role - based access control 通过对各种访问控制机制的研究，提出了采用自主访问控制与基于角色的访问控制相结合的方法对企业电子文档的权限进行管理。
The thesis overview the dac theory and the most commonly used dac mechanisms firstly . then , compatible with the remaining simple yet powerful file permission model , the acl introduced 本论文首先对自主访问控制的原理和实施机制进行研究分析，然后给出secimos安全操作系统的自主访问控制机制的设计与实现。
1 bahl p , russell w , wang y et al . pawns : satisfying the need for ubiquitous secure connectivity and location services . ieee personal communications magazine , february 2002 , 9 : 40 - 48 我们必须设计一种差别服务的访问控制机制来保证正常的用户得到他们应得的服务，保护系统不受恶意用户的攻击，更有效的使用带宽资源。
Under the open internet environment , three security mechanisms , including data confidentiality , identity authentication , and access control mechanism , must be realize when constructing logic secure subnet 在开放的互联网络中，构建逻辑安全子网必须要实现三种安全机制：数据保密性机制、身份认证机制和访问控制机制。
Pmi separates the management function of privileges in the x . 509v3 and offers a more strict , convenient and efficient access mechanism . pmi , based on pki , realizes a management system of access privileges Pmi分离了x . 509v3标准中pki的权限管理功能，提供更为严格、方便和高效的访问控制机制，是一种基于pki系统之上的、实现访问权限管理的体系。
