数字水印技术在网络评审中的应用研究

以彩色静止数字图像的信息隐藏算法为基础，探讨以数字水印技术有效解决电子图章的安全性问题的策略和算法，并面向网络评审的实际应用需求，提出关于电子图章的模版生成、水印嵌入、管理和使用以及水印验证的一整套方案．该方案解决了水印数据时信息隐藏和网络安全传输问题，已运用于国家科学技术奖励网络评审系统中．测试表明该方案具有良好的抗抵赖、抗攻击、抗复制、抗伪造和可鉴别性能。

Research on the Application of Digital Watermark Technology to Network Evaluation

Based on the information hiding algorithm of color static digital image, the strategy and the algorithm for effectively solving security problems of electronic stamps were discussed. With in mind the application requirements of network evaluation, a set of scheme, about how to create stencil plate, embed and verify digital watermark, manage and use electronic stamps were proposed. The scheme solved the problems of the information hiding and the network transmission of watermark data, and has been successfully applied to the Network Evaluation System of China National Science and Technology Awards. Testing results have shown that this scheme has the properties of non-repudiation, non-attack, non-copy, non-fabrication and authenticity.