Cryptanalysis and improvement of a chaotic system based fragile watermarking scheme |
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Authors: | Lin Teng Xingyuan Wang Xiukun Wang |
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Affiliation: | Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China |
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Abstract: | In this paper, we analyze the security of a chaotic system based fragile watermarking scheme for image tamper detection proposed by Rawat et al. recently. Some errors and modification attack against Rawat et al.’s scheme are demonstrated. Both theoretical analysis and experimental results show that the fragile watermarking scheme is not security. Besides, improvement measure is presented to enhance the security of the fragile watermarking scheme. |
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