This paper proposed a novel watermarking scheme for the authentication of business documents by embedding a piece of information in the binary document image. 针对商业文档的完整性保护问题,提出了一种数字水印方案。
The fingerprint's contrasting can be put into COS safety chip, so as to make the identification authentication of document be safety. 将指纹比对算法嵌入COS安全芯片中,达到身份安全认证的目的。
Text documents, a widely used information storing and convening media, are hotly studied to be applied in the field of secret communication, copyright protection and content authentication of text document. 文本文档作为一种普遍使用的信息存储与传输媒体,利用它们进行隐秘通信、利用数字水印保护文本文档版权并对文档内容进行认证等是信息安全领域的热门研究课题。
As an identity authentication technology, signature verification is used in many kinds offield such as many types of document, business contract and bank cheque et al. 签名作为身份确认的一种手段被用于诸多领域,如各类文书、合同、银行票据等。
Combining with digital signatures, fragile watermarking, robust watermarking, the system is based on authentication mechanism. It used com component technology and implemented the function of the document authentication, identity authentication and seal copyright protection. 该系统将数字签名、易损水印、鲁棒水印相结合,基于数字签名与数字水印的认证机制,使用COM组件技术,实现了文档认证、身份认证,图章版权保护等功能。