基于数字水印技术的数字印章研究与实现  

The Research on and Implementation of Digital Seal Based on Digital Watermark Technology

作　　者：赵彦锋[1,2] 权义宁[1] 

机构地区：[1]西安电子科技大学计算机学院,陕西西安710071 [2]长安大学信息工程学院,陕西西安710064

出　　处：《电子科技》2011年第3期115-117,共3页Electronic Science and Technology

摘　　要：针对办公自动化系统中电子文档的安全问题,对Hash函数和数字签名技术在实现文档完整性和真实性进行分析,提出了将文档的数字签名作为水印嵌入印章图像的新方案。结合COM技术和M icrosoft CryptoAPI加密接口,给出了基于数字水印技术的数字印章的实现思路。研究表明,该方案适用于传统文档和电子文档,能保证文档的完整性和真实性。In view of the security issues of electronic documents in the OA system,the integrity and authenticity of documents are analyzed,which uses the Hash function and digital signature.A new scheme is presented that the signature of documents is embedded as watermark into the image of seal.On the basis of the encrypted interface of the COM technology and Microsoft CryptoAPI,a new plan of digital seal based on digital watermark technology is presented.Research shows that this plan can be applied to traditional and electronic documents and ensure their integrity and authenticity.

关 键 词：办公自动化 数字签名 数字水印 数字印章 COM技术 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]