Robust and secure digital signature for image authentication over wireless Channels

International Journal of Computer Trends and Technology (IJCTT)          
© July to Aug Issue 2011 by IJCTT Journal
Volume-1 Issue-3                           
Year of Publication : 2011
Authors : J Sravanthi, Dr. MHM Krishna Prasad


J Sravanthi, Dr. MHM Krishna Prasad "Robust and secure digital signature for image authentication over wireless Channels"International Journal of Computer Trends and Technology (IJCTT),V1(3):326-331 July to Aug Issue 2011 .ISSN Published by Seventh Sense Research Group.

Abstract: — 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 content-based 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 multi-scale features are used to make digital signatures robust to image degradations and key dependent parametric wavelet that are characterized by excellent energy compaction and de-correlation 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.


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