Abstract: This paper designs a digital watermark algorithm for relational database, which need not modify the attribute values of the data. Through information hiding technology, it transforms modifying relational data to modifying information hiding carrier, so that the original data can avoid to be damaged during watermark embedding, and reality and value of the data are maintained. Experiments show that the algorithm is robust.

Key words: relational database, digital watermark, information hiding

摘要： 设计一种无需修改关系数据的属性值即可嵌入水印的关系数据库数字水印算法。通过使用信息隐藏技术，把对关系数据的修改转换到对信息隐藏载体的修改，使水印的嵌入过程能有效地避免对原始数据的破坏，保持原始数据的真实性和使用价值。实验证明该算法具有较好的鲁棒性。

关键词: 关系数据库, 数字水印, 信息隐藏

CLC Number: 

• TP301.6