摘要
为了更好地保护3D产品的完整性,提出一种基于Hash函数的分块3D网格模型脆弱水印算法。该算法是用插入特殊字符的方法来对水印信息进行分块,然后采用安全性高的Hash函数对水印信息块进行加密。实验结果表明,该算法可以检测出对模型的任何改动,并且可以定位被篡改的区域。它是一个简单、有效、安全性高的算法。
A block-breaking 3 D mesh model algorithm based on Hash function is presented. In this algorithm, with inserting special character,the watermarking information is broken into blocks for better protecting the integrity of 3D product. And then the blocks of watermarking information are encrypted with Hash function which has high security. It is showed by the experiments results that the proposed algorithm can detect any change made to the model, and can locate the tampered area. The algorithm is simple, effective and highly secure.
出处
《计算机应用与软件》
CSCD
2009年第4期85-86,105,共3页
Computer Applications and Software
基金
福建省自然科学基金项目(A0510006)
作者简介
孔祥增，硕士生，主研领域：数字水印，信息安全，图像处理。
