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An information theoretic analysis of architectures for multilevel secure databases

机译:多层安全数据库的体系结构的信息理论分析

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This paper develops a framework for assessing the security cost of implementations of a class of distributed database architectures, a framework which has previously been lacking in the literature. The value of information in a relational database is first introduced, i.e. a value is ascribed to the thing the security is to protect. In identifying sources of security costs, both the hiding of information from authorised users and the disclosure of information to unauthorised users are considered. Parameters which describe the effects of implementation and system usage on the security of the architecture are then determined. Finally, guidelines for estimating the information values and the implementation parameters required in calculating the security cost model are provided.
机译:本文开发了一种框架,用于评估一类分布式数据库体系结构的实现的安全成本,而该框架是以前文献中所缺乏的。首先介绍关系数据库中信息的价值,即,将价值归因于安全性所要保护的事物。在确定安全成本的来源时,既要考虑向授权用户隐藏信息,又要考虑向未授权用户公开信息。然后确定描述实现和系统使用对体系结构安全性的影响的参数。最后,提供了用于估算计算安全成本模型所需的信息值和实现参数的准则。

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