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1. 发明专利

JP2003319170A Apparatus and method for producing document to prevent its forgery or alteration, and apparatus and method for authenticating document 审中-公开
标题翻译：用于生产文件以防止伪造或更换的装置和方法，以及用于认证文档的装置和方法
公开(公告)号：JP2003319170A
公开(公告)日：2003-11-07
申请号：JP2003024124
申请日：2003-01-31
申请人： Markany Inc , マークエニー・インコーポレイテッド
发明人： CHOI JONG-UK , KIM JONG-WON
IPC分类号： G06K1/12 , G06K7/00 , G06K19/00 , G06T1/00 , G09C1/00 , G09C5/00 , H04N1/32 , H04N1/387
CPC分类号： G06T1/0021 , H04N1/32203 , H04N1/32229 , H04N1/32304 , H04N2201/3236 , H04N2201/3269
摘要： PROBLEM TO BE SOLVED: To provide an apparatus and method for producing a document preventing its forgery and alteration on-line and off-line and to provide an apparatus and method for authenticating the document. SOLUTION: A bar code is generated based on the information included in the document, and also electronic watermark is generated based on the information included in the document. The generated bar code and watermark are combined, and the generated bar code and watermark are inserted in the document so as to produce the document. When authenticating the document, the document is detected so as to extract the bar code inserted in the document and the information included in the extracted bar code and the information included in the document are compared, and also the document is detected so as to extract the watermark inserted in the document and the information included in the extracted watermark and the information included in the document are compared. According to the present invention, it is possible to prevent forgery or alteration of the document produced on-line and off-line when such document is distributed on-line or off-line. It is also possible to verify whether the document has been forged or altered. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于制造防止其在线和离线伪造和变更的文件的装置和方法，并提供用于认证文件的装置和方法。解决方案：基于文档中包括的信息生成条形码，并且还基于文档中包括的信息生成电子水印。生成的条形码和水印被组合，并且生成的条形码和水印被插入到文档中以产生文档。当对文档进行认证时，检测文档以提取插入到文档中的条形码，并且将包括在提取的条形码中的信息和包含在文档中的信息进行比较，并且还检测文档以便提取文档将插入到文档中的水印和包含在提取的水印中的信息和包括在文档中的信息进行比较。根据本发明，当这样的文档在线或离线分发时，可以防止在线和离线产生的文档的伪造或变更。也可以验证文件是否已被伪造或更改。版权所有（C）2004，JPO

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