计算机应用研究2012，Vol.29Issue(10)：3850-3853,4.DOI:10.3969/j.issn.1001-3695.2012.10.065
一种新的用于音频认证数字水印算法
New digital watermarking algorithm for audio authentication
摘要
Abstract
This paper proposed a new digital watermarking algorithm for audio authentication to protect the audio integrity in the perceptual sense. Firstly, it framed an original digital audio and then divided each frame into two parts. Secondly, with the spatial watermarking technique, embedded synchronization code into the first part. And then performed the DCT and calculated the AFRV( adjacent-frame relationship vector) used as the watermark information on the second part. Finally embedded the watermark bit into the DCT intermediate frequency coefficients of other frame' s second part. When authenticated, the algorithm could determine whether the audio had been malicious tampering by computing AFRE ( adjacent-frame relationship error) and according to the pre-set threshold without the help from the origin watermark. If the data were subjected to tampering, it could find out the data error localization. Simulation results show that the proposed algorithm can not only realize the audio media integrity authentication, but also accurately identify the tamper location.关键词
数字水印/音频认证/音频水印/离散余弦变换/窜改定位Key words
digital watermarking/audio authentication/audio watermarking/discrete cosine transform ( DCT)/tamper localization分类
信息技术与安全科学引用本文复制引用
申军伟,潘峰,张明书,肖海燕..一种新的用于音频认证数字水印算法[J].计算机应用研究,2012,29(10):3850-3853,4.基金项目
国家自然科学基金资助项目(60842006) （60842006）
