摘要
基于角色的访问控制模型(RBAC)是防止非授权访问、预防网络犯罪、保障网络安全的一种重要方法。约束是RBAC中的一组强制性规则,目前对约束的研究主要集中在关系约束、前提约束、数值约束、职责分离约束、势约束和时间约束等方面。对约束规则的研究和在网络系统中应用是从管理层面上预防网络犯罪的有效方法之一。
RBAC （Role-based Access Control） Model, is a very important method to prevent non-authority visit to prevent network crimes and ensure network safety. Restriction is a group compelling regulations in RBAC, and currently the studies of it focus on relation restriction, precondition restriction, data restriction, responsibility-separated restriction, strength restriction and time restriction, etc. To carry out studies on principles of restriction and to imply them in network system is one of the effective methods to prevent network crimes on administrative level.
关键词
RBAC
约束
网络安全
网络犯罪
RBAC （Role-based Access Control）
restriction
security of network
network crime
