| 基于分解和加密的外包数据库隐私保护 |
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| 引用本文： | 余永红,柏文阳. 基于分解和加密的外包数据库隐私保护[J]. 计算机工程, 2011, 37(7): 139-141,159. DOI: 10.3969/j.issn.1000-3428.2011.07.046 |
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| 作者姓名： | 余永红 柏文阳 |
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| 作者单位： | 1. 安徽财经大学信息工程学院,安徽蚌埠,233041
2. 南京大学计算机软件新技术国家重点实验室,南京,210093 |
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| 基金项目： | 国家"863"计划基金资助项目，安徽省自然科学基金资助重点项目，南京大学计算机软件新技术国家重点实验室开放课题基金资助项目 |
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| 摘 要： | 目前基于全部数据加密的外包数据库服务不能有效平衡数据处理性能与数据隐私保护之间的关系。针对该不足，提出一种基于单个外包数据库服务器的隐私保护方法，通过加密和分解关联隐私约束规则最大限度地减少加密属性，实现最小加密属性分解的近似算法，并给出基于元数据的查询分解方法，实现查询处理。理论分析表明，该方法能实现外包数据的隐私保护，又能较好地改善外包数据的查询性能。
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| 关 键 词： | 外包数据库 隐私保护 关系分解 加密 |
Privacy Protection in Outsourced Database Based on Fragmentation and Encryption |
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| YU Yong-hong,BAI Wen-yang. Privacy Protection in Outsourced Database Based on Fragmentation and Encryption[J]. Computer Engineering, 2011, 37(7): 139-141,159. DOI: 10.3969/j.issn.1000-3428.2011.07.046 |
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| Authors: | YU Yong-hong BAI Wen-yang |
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| Affiliation: | 1.School of Information Engineering,Anhui University of Finance & Economics,Bengbu 233041,China;2.State key Laboratory for Novel Software Technology,Nanjing University,Nanjing 210093,China) |
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| Abstract: | Previous outsourced database server based on all data encryption can not effectively balance the relationship between data processing properties and the data privacy protection.Aiming at the shortages,this paper presents a privacy protection method based on a single outsourced database server.It combines fragmentation and encryption that can provide both efficient privacy protection and query processing.Based on the approximation algorithm for the minimal encryption attribute fragmentation,the method allows storing the outsourced data on a single database server and minimizing the amount of data represented in encrypted format.Theory analysis shows that this method has efficient privacy protection and query processing. |
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| Keywords: | outsourced database privacy protection relation fragmentation encryption |
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