Abstract: In terms of the restrictions between the performance criteria of dynamic gragh-based watermarks, this paper presents a devising method to improve the quantity of hidden data by which is splitting a watermarking number instead of splitting a watermarking gragh; It analyzes a so-called abstract watermarking scheme, meanwhile combining with the evident advantages of dynamic gragh-based watermarks, and gives a novel dynamic watermarking scheme based on Chinese remaindering theorem, points out the further developing directions of software watermarking techniques through analyzing the strategies to improve the performance of dynamic gragh-based watermarks.

Key words: Chinese remaindering theorem, Abstract watermarking, Dynamic gragh-based watermarking

摘要： 针对动态图水印性能指标之间的制约关系，提出了从分解水印图变为分解水印数据以提高隐藏信息量的设计思想，分析了称为抽象水印的方案，并结合动态图水印的明显优势，给出了一种基于中国剩余定理的动态水印方案。通过分析提高了动态水印性能的策略，指出软件水印技术的进一步发展方向。

关键词: 中国剩余定理, 抽象水印, 动态图水印