摘要
通过分析现有数据库水印技术,将分类思想引入关系数据库零水印特征提取过程,提出了基于分类的关系数据库零水印算法。其中,提取数据类编号作为数据的特征信息,在一定程度上减少了数据库的数据类型和数据误差对水印算法的限制。该算法具有隐蔽性好的特点,且水印恢复无需原始数据库,同时支持水印信息盲检测。仿真试验验证了该算法的安全性和鲁棒性。
The classification idea is introduced to the relational database zero-watermarking char- acteristic extraction process by analyzing the watermark technology of the database. The zero-wa- termarking algorithm for relational database based on classification is proposed. The classification code of the extraction data is used as feature information to a certain extent,limits of data type and errors in database on the algorithm are decreased. The algorithm is good at hiding and does not need original database in the recover process, meanwhile, supports blind-checking of water- mark information. Finally, the simulation experiment validates the safety and the robustness of the algorithm.
出处
《指挥信息系统与技术》
2013年第6期85-89,共5页
Command Information System and Technology
关键词
数字水印
关系数据库
零水印技术
分类
版权保护
digital watermark
relational database
zero-watermarking technology
classifica- tion
copyright protection
