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Security Enforcement in the DOK Federated Database System

机译:DOK联合数据库系统中的安全实施

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The Distributed Object Kernel (DOK) is a federated database system currently under development at the Royal Melbourne Institute of Technology. One of the issues currently under study is the development of a federated access control, as well a secure logical architecture allowing the DOK system to enforce federated security policies in the context of autonomous, distributed and heterogeneous databases. In this paper, we propose a Unified Security Model aiming for the integration of existing access control models, such as Mandatory Access Control and Discretionary Access Control, which could have been imposed on local components of a DOK application. Also, we extend the initial DOK multi-layered architecture proposed in (Tari et al. 1996) to include different types of security agents allowing the enforcement of different security functions within a federated environment. Coordination agents are responsible for maintaining a federation in a secure state by delegating the different functions to specific agents, called Task agents. By delegating the access of information within local databases to Database agents, the Task agents enforce the federated security policies using specific security procedures.
机译:分布式对象内核(DOK)是皇家墨尔本技术学院目前正在开发的联合数据库系统。当前正在研究的问题之一是联邦访问控制的发展以及安全的逻辑体系结构,该体系结构允许DOK系统在自治,分布式和异构数据库的上下文中实施联邦安全策略。在本文中,我们提出了一个统一安全模型,旨在集成现有的访问控制模型,例如强制性访问控制和自由访问控制,这些功能可能已应用于DOK应用程序的本地组件。此外,我们扩展了在(Tari等,1996)中提出的最初的DOK多层体系结构,以包括不同类型的安全代理,从而允许在联合环境中实施不同的安全功能。协调代理负责通过将不同功能委派给称为任务代理的特定代理来将联盟维持在安全状态。通过将本地数据库中的信息访问权限委派给数据库代理,任务代理使用特定的安全过程来实施联合安全策略。

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