| 一种基于混沌加密的关系数据库水印算法 |
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| 引用本文： | 马瑞敏,陈继红,朱燕琼.一种基于混沌加密的关系数据库水印算法[J].南通工学院学报(自然科学版),2012(1):13-17,29. |
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| 作者姓名： | 马瑞敏 陈继红 朱燕琼 |
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| 作者单位： | [1]南通大学电子信息学院,江苏南通226019 [2]南通大学计算机科学与技术学院,江苏南通226019 |
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| 基金项目： | 江苏省自然科学基金项目（BK2010277）; 南通市应用基础研究计划项目（K2010002） |
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| 摘 要： | 在现有关系数据库水印算法的基础上,提出了一种基于混沌加密的关系数据库版权保护水印算法.通过混沌系统对版权图片进行加密,得到水印信息数据流,采用Hash函数对数据库关系中的元组进行分组标记和属性筛选,最后在不破坏数据可用性的前提下,将水印信息嵌入数据库的数值属性冗余位中.实验结果表明,该算法对子集抽取、子集添加、共谋攻击具有较好的鲁棒性.
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| 关 键 词： | 混沌加密 关系数据库 水印算法 |
A Watermarking Algorithm of Relational Database Based on Chaotic Encryption |
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| Authors: | MA Rui-min CHEN Ji-hong ZHU Yan-qiong |
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| Institution: | 1.School of Electronics and Information,Nantong University,Nantong 226019,China; 2.School of Computer Science and Technology,Nantong University,Nantong 226019,China) |
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| Abstract: | Protecting relational database copyright by using watermarking technology is an important theme in database security field.An algorithm based on chaotic encryption for watermarking relational database is presented.Firstly,the ownership picture is encrypted by using chaotic system,and then the tuples of relational database are grouped by their hash values.Finally,the watermark information is embedded into numerical attributes of the database without ruining the availability of the original data.Experimental results show that the algorithm is robust against subset selection attack,subset addition attack and collusion attack. |
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| Keywords: | chaotic encryption relational database watermarking algorithm |
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