Cryptanalysis and improvement of a binary watermark-based copyright protection scheme for remote sensing images |
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| Institution: | 1. Engineering Laboratory of Intellectual Business and Internet of Things Technologies, Henan Province, Engineering Technology Research Center for Computing Intelligence & Data Mining, Henan Province, College of Computer and Information Engineering, Henan Normal University, Xinxiang 453007, China;2. College of Computer Science and Technology, Zhoukou Normal University, Zhoukou, 466001, China;3. School of Information Technology, Jiangxi University of Finance and Economics, Nanchang, 330013, China;1. School of Computer Science, Chongqing University, Chongqing 400044, China;2. School of Information Technology, Jiangxi University of Finance and Economics, Nanchang 330013, China;3. School of Economics & Business Administration, Chongqing University, Chongqing 400044, China;1. College of Computer and Information Engineering, Henan Normal University, Xinxiang 453007, China;2. College of Computer Science, Chongqing University, Chongqing 400044, China;3. School of Electronics and Information Engineering, Southwest University, Chongqing 400715, China;1. Key Laboratory of Dependable Service Computing in Cyber Physical Society of Ministry of Education, College of Computer Science, Chongqing University, Chongqing 400044, China;2. College of Software Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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| Abstract: | The copyright protection of the remote sensing images is becoming a hot research topic in recent years. By considering the characteristics of the binary image, Zhu et al. proposed a new digital watermarking algorithm to protect the copyright of remote sensing images effectively. However, Zhu et al.’s scheme is not secure under the novel attack method proposed in this paper. While keeping the visual quality of the protected original image unchanged, the embedded watermark can be replaced with another watermark if the attacker has the host image carrying the other watermark. Thus the copyright of the original image changes and the copyright protection fail. To overcome the insecurity, a chaos-based improvement measure is proposed, in which the performance is the same as before. Analysis, proof, and experiment show that our methods are feasible and effective. |
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| Keywords: | Cryptanalysis Watermarking Copyright protection Remote sensing images |
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