Watermarking Relational Databases for Ownership Protection Based on DWT

摘要：

This paper primarily researches on the feasibility of embedding watermark to relational databases in the Discrete Wavelet Transform (DWT) domain. Watermark embedding is known to be difficult for relational databases. This paper focuses on the analysis of the wavelet high frequency coefficients of corresponding data and gives the definition of the intensive factor. By employing the linear correlation detecting method, this paper proposes the watermarking algorithm, which can embed the watermark into relational database successfully in DWT domain. The watermark can be distributed to different parts of the relational database. Experiments show that the embedded digital watermarks in the proposed algorithm are invisible and some degree of the robustness of the proposed algorithm against the commonly attacks that are used in databases processing.

关键词： relational database watermarking information detetcting numerical attribute DWT

作者: Chuanxian Jiang Xiaowei Chen Zhi Li

作者单位: School of computer science and information Guizhou University School of computer science and,information Guizhou University

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 305-308

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）