计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (17): 156-159.DOI: 10.3778/j.issn.1002-8331.2010.17.044

• 数据库、信号与信息处理 • 上一篇    下一篇

里德索罗门码数据库水印的研究

潘季芳,李军义,向 玥   

  1. 湖南大学 计算机与通信学院,长沙 410082
  • 收稿日期:2008-12-05 修回日期:2009-03-02 出版日期:2010-06-11 发布日期:2010-06-11
  • 通讯作者: 潘季芳

Study of database watermarking based on Reed-Solomon codes

PAN Ji-fang,LI Jun-yi,XIANG Yue   

  1. School of Computer and Communication,Hunan University,Changsha 410082,China
  • Received:2008-12-05 Revised:2009-03-02 Online:2010-06-11 Published:2010-06-11
  • Contact: PAN Ji-fang

摘要: 在结合现有的各种水印算法的基础上,提出了一种基于交叉里德索罗门码的数字水印方法,其主要思想是:在整体上利用大数选举对水印进行差错控制,在局部引入交叉里德索罗门码对水印信息进行纠错编码,使得水印信息对随机性和突发性错误具有很强的纠错能力。理论分析和实验结果表明,该算法对数据库影响很小,隐蔽性好,在提高水印鲁棒性的同时增加了数据库的水印可嵌入量,具有很好的应用价值。

关键词: 关系数据库, 数字水印, 交叉里德索罗门码, 大数选举

Abstract: Combined with the watermarking scheme in existence,a digital watermarking for relational databases based on cross Reed-Solomon codes is proposed.The basic idea of the method is to set up a model of error control which is based on majority voting and cross Reed-Solomon codes.Encoding makes watermarking capable of correcting stochastic and gusty errors.Theory analysis and experiment results show that the scheme is invisible and robust.It has a wide foreground in protecting the copyright of database.

Key words: relational database, digital watermarking, cross Reed-Solomon codes, majority voting

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