Plain Text Zero Knowledge Watermarking Detection Based on Asymmetric Encryption
Zhangjie Fu, Xingming Sun, Jiangang Shu, Lu Qun Zhou · Advanced science and technology letters · 2014
Digital watermarking technology plays an important role in the areas of copyright protection and identity tracing for owners of digital mediums. At present, the security of the watermarking scheme is facing a great threat. However, the existing Zero knowledge-based watermark detection scheme (ZKWD) are still facing some challenging problems, such as ambiguity attacks. In this paper, a public ZKWD protocol is proposed for plain text, and the homomorphic property of asymmetric encryption algorithm in the multiplication operation is used to prevent the owner from cheating by ambiguity attacks. Compared with existing methods, the security of our proposed ZKWD scheme is improved by using the improved feature extraction algorithm.