计算机工程 ›› 2012, Vol. 38 ›› Issue (08): 107-110.doi: 10.3969/j.issn.1000-3428.2012.08.035

• 安全技术 • 上一篇    下一篇

基于双重零水印的数据库版权保护

李启南 1,李 娇 2,武 让 1   

  1. (1. 兰州交通大学电子与信息工程学院,兰州 730070;2. 北京交通大学计算机与信息技术学院,北京 100044)
  • 收稿日期:2011-07-21 出版日期:2012-04-20 发布日期:2012-04-20
  • 作者简介:李启南(1965-),男,副教授,主研方向:网络与信息安全,数据挖掘;李 娇、武 让,本科生
  • 基金项目:
    甘肃省自然科学研究基金资助项目(1014RJZA037)

Database Copyright Protection Based on Dual Zero-watermark

LI Qi-nan 1, LI Jiao 2, WU Rang 1   

  1. (1. School of Electrical and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;2. School of Computer and Information Technology, Beijing Jiaotong University, Beijing 100044, China)
  • Received:2011-07-21 Online:2012-04-20 Published:2012-04-20

摘要: 数据库零水印具有二义性,可能引起数据库的版权纠纷。为此,提出一种数据库版权图像零水印算法。以零宽度不可见字符作为水印符号,将版权图像嵌入宿主数据库,构造一重数据库零水印,同时使用字符型数据Unicode编码提取二重数据库零水印。实验结果表明,该算法可以提高数据库版权保护能力。

关键词: 数据库零水印, 零宽度不可见字符, 数据库版权保护, 汉明码, 信息隐藏

Abstract: The database zero-watermark has ambiguous, which may lead up to database copyright dispute. Aiming at this problem, this paper presents a novel database copyright image zero-watermark algorithm. The algorithm uses zero width and invisible character as the watermark character, embeds the copyright image into the host database, and establishes a database zero-watermark. At the same time, the Unicode value in character fields is used to extract the other database zero-watermarks. Experimental results show that the dual database zero-watermark can improve the database copyright protection ability.

Key words: database zero-watermark, zero width and invisible character, database copyright protection, Hamming code, information hiding

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