文章基本信息

标题：Robust and secure digital signature for image authentication over wireless Channels
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作者：J Sravanthi ; Dr. MHM Krishna Prasad
期刊名称：International Journal of Computer Trends and Technology
电子版ISSN：2231-2803
出版年度：2011
卷号：1
期号：3-2
出版社：Seventh Sense Research Group
摘要：— Now a days the transmission and distribution of the digital images by appending the digital signatures and content based image authentication schemes facing some triggers which are suitable for the insecure network and robust to transmission errors. The invasive distribution of digital images and the growing concern on their integrity and originality triggers an emergent need of authenticating corrupted images by transmission. To meet this need, this paper proposes a contentbased image authentication scheme that exploits structural digital signature scalability in order to achieve a good tradeoff between security and data transfer. In this paper we propose the multiscale features are used to make digital signatures robust to image degradations and key dependent parametric wavelet that are characterized by excellent energy compaction and decorrelation properties and filters are employed to improve the security against forgery attacks based on the wavelet transform due to its excellent multiscale and precise localization properties. Experimental results demonstrate the effectiveness and validity of the proposed scheme.
关键词：CONTENT-BASED IMAGE AUTHENTICITY VERIFICATION ;WIRELESS IMAGE AUTHENTICATION