%0 Journal Article 
%F MM000422_R1
%A Sun, Qibin
%A Chang, Shih-Fu
%T A Secure and Robust Digital Signature Scheme for JPEG2000 Image Authentication
%J IEEE Transactions on Multimedia
%V 7
%N 3
%P 480-494
%X In this paper we present a secure and robust content 		based digital signature scheme for verifying the authenticity of 			JPEG2000 images quantitatively, in terms of a unique concept 			named Lowest Authenticable Bit-Rates (LABR). Given a LABR, 		the authenticity of the watermarked JPEG2000 image will be 			protected as long as its final transcoded bit-rate is not less than 			the LABR. The whole scheme, which is extended from the crypto 			data-based digital signature scheme, mainly comprises signature 			generation / verification, Error Correction Coding (ECC) and 			watermark embedding / extracting. The invariant features, which 			are generated from fractionalized bit-planes during the procedure 			of EBCOT (Embedded Block Coding with Optimized Truncation) 			in JPEG2000, are coded and signed by the sender's private key to 			generate one crypto signature (hundreds of bits only) per image, 		regardless of the image size. Error Correction Coding (ECC) is 			employed to tame the perturbations of extracted features caused 			by processes such as transcoding. Watermarking only serves to 			store the check information of ECC. The proposed solution can be 			efficiently incorporated into the JPEG2000 codec (Part 1) and is 			also compatible with Public Key Infrastructure (PKI). After 			detailing the proposed solution, system performance on security 			as well as robustness will be evaluated
%U http://www.ee.columbia.edu/dvmm/publications/05/MM000422_R1.pdf
%8 June
%D 2005