A Multiple Watermarking Algorithm for Texts Mixed Chinese and English

摘要

Digital watermarking is a common digital product copyright protection mechanism, and used widely in information security research area. But there are still some deficiencies in current digital text watermarking algorithm, such as low robustness, insufficient security, low watermarking capacity and inability of application to texts mixed Chinese and English. The paper proposes a multiple watermarking algorithm for texts mixed Chinese and English based on character encoding and attributes. This algorithm can provide a larger watermarking capacity, and meanwhile keep the watermarking information invisible. And then it also provides strong security and auto error correction ability to guarantee that the watermarking is not destroyed or tampered by other malicious attackers. Our experiment and related analysis demonstrate all these features.