一种新型抗旋转攻击的鲁棒哈希算法  

New Robust Hash Algorithm for Image Against Rotation Attack

作　　者：孙阳[1] 朱宏峰[1] 刘天华[1] 

机构地区：[1]沈阳师范大学软件学院,辽宁沈阳110034

出　　处：《小型微型计算机系统》2011年第4期668-671,共4页Journal of Chinese Computer Systems

基　　金：辽宁省教育厅基金项目(2009A665)资助;辽宁省自然科学基金项目(20102202)资助;沈阳师范大学实验中心主任基金项目(SY200906)资助

摘　　要：鲁棒哈希算法是指通过匹配两个短的哈希向量,并以此度量两个图像之间的相似度的一种验证算法.与传统的水印方法相比较,鲁棒哈希不需要在图像中嵌入信息,也就不需要修改源图像,因此,鲁棒哈希能够提供更高的鲁棒性.由于鲁棒哈希具有效率高、实用性广的特点,正逐步成为未来图像认证与身份鉴别的主要技术.本文提出一种新的鲁棒图像哈希算法,该算法在有效的抵抗旋转攻击的同时,在效率和容错性方面与近期文献相比,也具有很大的优势.Robust hash method is a verification algorithm which measures the similarity between two images by matching two short hash vectors. Comparing to traditional watermarking, robust hash does not need to embed information in images, and not need to modify the source image, therefore, it can provide more robustness. Since robust hash has high efficiency and wide applicability, it is becoming the major technology in future image authentication. This paper presents a new robust image hash algorithm which can effectively against rotation attack, in the same time, has a great advantage of efficiency and fault-tolerance compared with the recent literature.

关 键 词：鲁棒 哈希 旋转攻击 水印 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]