Zero-watermarking algorithm for database based on chaotic sequences

doi:10.3778/j.issn.1002-8331.2008.29.047

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (29): 168-170.DOI: 10.3778/j.issn.1002-8331.2008.29.047

• 数据库、信号与信息处理 • Previous Articles Next Articles

Zero-watermarking algorithm for database based on chaotic sequences

MENG Ying-jie,SHI Yao,SI Lei,CAO Yi-wen,ZHANG Jin-yong

School of Information Science & Engineering，Lanzhou University，Lanzhou 730000，China

Received:2007-11-27 Revised:2008-02-18 Online:2008-10-11 Published:2008-10-11
Contact: MENG Ying-jie

一种基于混沌变换的数据库零水印算法

蒙应杰,是垚,司蕾,曹祎文,张金永

兰州大学信息科学与工程学院，兰州 730000

通讯作者: 蒙应杰

Abstract

Abstract: Introduce the chaos transformation to database watermark working，construct a zero-watermarking algorithm for database based on chaotic sequences.The algorithm uses the chaos sequence select data items of records，selected items is not dependent on the other records and distribute by discrete；Moreover，add change of order used chaotic sequences after the initial watermark generated；therefore this can improve the safety of database watermark.Finally，it makes the simulative test to validate the algorithm.

Key words: database, zero-watermarking, chaos transformation

摘要： 将混沌变换引入数据库水印处理，构造了一种基于混沌变换的数据库零水印算法。该算法利用混沌序列筛选数据库记录数据项，筛选出的数据项不依赖于其他的元组，成离散的分布状态。另外，在生成初始水印后又加入了混沌变换置乱水印，因此可提高数据库水印的鲁棒性和安全性。最后对构造的算法进行了仿真实验验证。

关键词: 数据库, 零水印, 混沌变换

MENG Ying-jie,SHI Yao,SI Lei,CAO Yi-wen,ZHANG Jin-yong. Zero-watermarking algorithm for database based on chaotic sequences[J]. Computer Engineering and Applications, 2008, 44(29): 168-170.

蒙应杰,是垚,司蕾,曹祎文,张金永. 一种基于混沌变换的数据库零水印算法[J]. 计算机工程与应用, 2008, 44(29): 168-170.

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Zero-watermarking algorithm for database based on chaotic sequences

一种基于混沌变换的数据库零水印算法

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