| 摘要: |
| 首先对按元素划分安全级的多级数据库上由函数依赖(FD)和多值函数依赖(MVD)引起的推理问题进行了研究,所提出的推理控制算法在很大程度上提高了数据的可用性.为进一步有效防范推理所导致的敏感信息泄露,给出了基于视图的推理控制方法.该方法能够处理多视图合谋带来的安全问题.最后给出了视图依赖基划分原理,它是以后有关视图推理控制的基础. |
| 关键词: 安全数据库 推理控制 视图 视图合谋 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.60303008, 69933010 (国家自然科学基金); the National High-Tech Research and Development Plan of China under Grant No.2002AA4Z3430 (国家高技术研究发展计划(863)) |
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| Inference Control in Secure Database |
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YAN He-Ping,WANG Wei,SHI Bai-Le
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| Abstract: |
| This paper investigates the inference problems due to functional dependencies (FD) and multi-valued dependencies (MVD) in a multilevel relational database with element classification schemes. The algorithms presented can greatly improve the data availability. To further deal with the indirect privacy violation, the view-based inference control method is proposed which can eliminate the secure problem brought by multi-view collusions. The theories of splitting views into the view dependency basis are the foundation of future work on the view-based inference control. |
| Key words: secure database inference control view view collusion |
