| 基于Blakley门限方案的数据库水印技术 |
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| 引用本文： | 彭沛夫,张桂芳.基于Blakley门限方案的数据库水印技术[J].湖南师范大学自然科学学报,2007,30(2):67-70. |
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| 作者姓名： | 彭沛夫 张桂芳 |
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| 作者单位： | 1. 湖南师范大学物理与信息科学学院,中国,长沙,410081
2. 湖南涉外经济学院,中国,长沙,410205 |
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| 基金项目： | 湖南省自然科学基金资助项目(06JJ5116)，湖南省教育厅科学技术研究基金资助项目(05C408) |
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| 摘 要： | 提出了基于Blakley门限方案的数据库水印算法,实现了基于数据库的部分内容恢复水印信息,攻击者即使知道水印嵌入算法,也只能提取出经过分存后的水印信息,无法恢复出原始水印.Blakley门限方案的引入,增强了数据库水印的安全性和鲁棒性.在数据库安全控制中,该算法可以得到较好的应用.
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| 关 键 词： | 数字水印 数据库水印 数据库安全 门限方案 |
| 文章编号： | 1000-2537（2007）02-0067-04 |
| 修稿时间： | 2006-02-27 |
Watermark Technology for Databases Based on Blakley Threshold Scheme |
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| PENG Pei-fu,ZHANG Gui-fang.Watermark Technology for Databases Based on Blakley Threshold Scheme[J].Journal of Natural Science of Hunan Normal University,2007,30(2):67-70. |
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| Authors: | PENG Pei-fu ZHANG Gui-fang |
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| Institution: | 1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China; 2. Hunan College of International Economics, Changsha 410205, China |
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| Abstract: | As the particularity of relational database,Watermark for databases request much more than for multimedia on robustness.A new watermark technology for databases based on Blakley Threshold Scheme is proposed in this paper.When recover watermark information,the new technology only need part content of the database.The experiments results show that the Blakley Threshold Scheme which is introduced into watermark for databases improve the safety and robustness.Even if the attacker knows the embedded arithmetic,he can only get the shared watermark information,and can't recover the original watermark.In the safety control for databases,this arithmetic has good application. |
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| Keywords: | digital watermark database watermark database security threshold secret sharing scheme |
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