基于相关性和随机旋转变换的非对称水印检验结构  

On Asymmetric Watermarking Testing Structure Based on Correlation and Random Rotation Transformation

作　　者：赵华[1] 袁盾韬 

机构地区：[1]河海大学计算机及信息工程学院,江苏南京210098 [2]云南鲁布革发电总厂,云南罗平655002

出　　处：《华北水利水电学院学报》2005年第4期40-42,共3页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：针对非对称水印在实际应用中存在的问题,构建了转换域非对称水印方案进行相关性检验的检验器的结构,通过线性随机角度旋转变换产生非对称检验密匙的方法及相关性统计检验,改进了传统双密匙算法,该法具有安全性和可行性,有较高的应用价值.Asymmetric watermarking is second generation watermarking scheme which is more safe and credible, therefore attracting a lot of attention. Recently, many algorithms for asymmetry are proposed, but there are still some problems of the rationality , security and feasibility with them. Here the concept of the two keys is generalized and improved. Correlation detector structure for asymmetric watermarking scheme is studied based on a linear transformation of random directional angle rotation and its security, feasibility and applicability are proved.

关 键 词：数字水印 非对称水印 密匙 检验器 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]