摘要
通过在关系型数据库中所嵌入的版权信息,从而实现数据库的版权保护。结合现有的关系型数据库水印算法基础上,引入混沌随机序列和哈希函数的方法,提出了一种在数据库中嵌入具有实际意义的水印信息的算法,该方法所嵌入的水印信息具有保密性强、能盲提取等特征。理论分析和仿真试验表明了该方法的有效性和可行性。
Ownership protection of a relational database is implemented, by embedding the ownership information into a relational database. By improving the current watermarking algorithms of relational database and introducing chaotic sequence and Hash function, a algorithm for embedding a string of bits into a relational database is proposed. The algorithm makes watermarking information hold the characters of secrecy and blind extraction. Theoretic analysis and emulated results verify the effectiveness and feasibility of the proposed method.
出处
《科学技术与工程》
2005年第22期1724-1727,共4页
Science Technology and Engineering
基金
国家自然科学基金(60373062)
教育部科研(03092)
湖南省杰出中青年基金(02JJYB012)资助
关键词
数据库水印
数值型属性
混沌随机序列
database watermarking numerical attribute chaotic random sequence
