PROCEDE DE CERTIFICATION ET D'AUTHENTIFICATION ULTERIEURE DE DOCUMENTS ORIGINAUX PAPIER OU NUMERIQUES POUR CONSTITUTION DE PREUVES
    31.
    发明申请
    PROCEDE DE CERTIFICATION ET D'AUTHENTIFICATION ULTERIEURE DE DOCUMENTS ORIGINAUX PAPIER OU NUMERIQUES POUR CONSTITUTION DE PREUVES 审中-公开
    证明和后续授权原始文件或数字文件的证明方法

    公开(公告)号:WO2007077324A1

    公开(公告)日:2007-07-12

    申请号:PCT/FR2006/002799

    申请日:2006-11-09

    Abstract: La présente invention concerne un procédé de certification et d'authentification ultérieure de documents originaux physiques ou numériques. Le concept de la preuve repose sur la dualité d'une information physique et d'une information numérique, l'une étant le témoin de l'autre qui est non modifiable au risque de perdre la preuve. A un document original physique (8) associé à un scellé à bulles (7) correspond une contre partie témoin dématérialisée horodatée et propriétaire. A un document original numérique (15) horodaté et propriétaire correspond une contre partie témoin matérialisée par un scellé à bulles (7).

    Abstract translation: 本发明涉及用于认证和随后验证原始物理或数字文档的方法。 证据的概念在于物理信息项目和数字信息项目的双重性质,一个是另一个不能被证据丢失的风险的参考。 对于与气泡密封(7)相关联的物理原始文件(8),存在相应的时间戳记专有的无纸化参考对应物。 对于具有时间戳的专利数字原始文件(15),以气泡密封的形式存在相应的参考对应物(7)。

    DIGITAL WATERMARKING OF BINARY DOCUMENT USING HALFTONING
    32.
    发明申请
    DIGITAL WATERMARKING OF BINARY DOCUMENT USING HALFTONING 审中-公开
    使用半自动化的二进制文件数字水印

    公开(公告)号:WO2003079277A1

    公开(公告)日:2003-09-25

    申请号:PCT/US2003/006782

    申请日:2003-03-07

    Abstract: The present invention is a method (Fig. 1) for hiding data in document contents. The method comprises receiving information relating to the document contents, (102) , wherein at least part of the document contents are of a binary nature, converting the data to halftone pixel groups according to predefined binary classifications associated with combinations of halftone pixels, (104), and embedding the halftone pixel groups into a binary portion of the document contents (104 and 114). Further, the present invention is a method for extracting data hidden in document contents (Fig. 7) The method comprises receiving information relating to the document contents (702), wherein the document contents include halftone pixel groups, extracting the halftone pixel groups from the document contents (712), and converting the halftone pixel groups to the data according to predefined binary classifications associated with combinations of halftone pixels (714).

    Abstract translation: 本发明是一种在文件内容中隐藏数据的方法(图1)。 该方法包括接收与文档内容相关的信息,(102),其中文档内容的至少一部分具有二进制性质,根据与半色调像素的组合相关联的预定二进制分类将数据转换为半色调像素组(104 ),并且将半色调像素组嵌入到文档内容(104和114)的二进制部分中。 此外,本发明是一种用于提取隐藏在文档内容中的数据的方法(图7)。该方法包括接收与文档内容相关的信息,其中文档内容包括半色调像素组,从该文件内容中提取半色调像素组 文件内容(712),并且根据与半色调像素的组合相关联的预定义的二进制分类,将半色调像素组转换为数据。

    WATERMARKING PROCESS RESILIENT TO COLLUSION ATTACKS
    33.
    发明申请
    WATERMARKING PROCESS RESILIENT TO COLLUSION ATTACKS 审中-公开
    水印攻击的水印过程

    公开(公告)号:WO1997034391A1

    公开(公告)日:1997-09-18

    申请号:PCT/US1997003816

    申请日:1997-03-12

    Abstract: The work to be protected by the watermark is first digitized (10), and then the baseline watermark vector is derived (12) and stored (14). Also, a watermark offset vector is created (16) and stored (18). The watermark offset vector and the baseline watermark vector are added together to generate a modified watermark vector (20). Next, the baseline watermark vector is replaced by the modified watermark vector in the digitized work to be protected (22). Finally, the watermarked work is returned to its original form (24).

    Abstract translation: 首先数字化(10),然后导出(12)并存储(14)基线水印矢量。 此外,创建(16)并存储(18)水印偏移向量。 将水印偏移矢量和基线水印矢量相加在一起,生成修正水印矢量(20)。 接下来,基准水印向量被被保护的数字化工作中的修改的水印矢量所替代(22)。 最后,水印工作返回到其原始形式(24)。

    디지털 증명서의 발급 및 인증을 위한 텍스트의 삽입 방법및 장치
    35.
    发明公开
    디지털 증명서의 발급 및 인증을 위한 텍스트의 삽입 방법및 장치 有权
    用于发行和证明数字证书的方式和装置

    公开(公告)号:KR1020010095343A

    公开(公告)日:2001-11-07

    申请号:KR1020000065038

    申请日:2000-11-02

    Inventor: 최종욱 최기철

    Abstract: PURPOSE: A method and apparatus for embedding a text for issuance and certification of a digital certificate is provided to enable certification of a digital certificate, which is dealt in various on-line/off-line, to be performed in a more trustworthy manner. CONSTITUTION: At least a part of the first type data is converted into a bit stream. The second type data is converted into a one-dimensional data. The one-dimensional data is transformed based on bit values of the bit stream to generate a temporary data. The temporary data is restored to the second type. The second type data is replaced by the restored temporary data. The first type data is a text and the second type data is an image. The transformation is made using a modulus operator. Each unit data of the one-dimensional data is calculated by using the modulus operator. A remainder is compared with a bit value of the bit stream. If the remainder is the same as the bit value of the bit stream, the unit data is maintained. However, if the remainder is not the same as the bit value, 1 is added to the unit data so as to be transformed.

    Abstract translation: 目的:提供一种用于嵌入数字证书的发行和认证的文本的方法和装置,以便以更可靠的方式执行以各种在线/离线处理的数字证书的认证。 构成:将第一类型数据的至少一部分转换为位流。 第二类型数据被转换为一维数据。 基于比特流的比特值来变换一维数据以生成临时数据。 临时数据恢复到第二种类型。 第二类数据被恢复的临时数据替换。 第一类型数据是文本,第二类型数据是图像。 使用模运算符进行转换。 通过使用模运算符来计算一维数据的单位数据。 将余数与位流的位值进行比较。 如果余数与位流的位值相同,则保持单位数据。 然而,如果余数与位值不同,则将1加到单元数据上以进行变换。

    Watermarking and Fingerprinting Digital Content Using Alternative Blocks to Embed Information
    38.
    发明申请
    Watermarking and Fingerprinting Digital Content Using Alternative Blocks to Embed Information 审中-公开
    水印和指纹数字内容使用替代块嵌入信息

    公开(公告)号:US20120237078A1

    公开(公告)日:2012-09-20

    申请号:US13482137

    申请日:2012-05-29

    Abstract: A method of embedding information in digital content representing media streams. The method includes (1) selecting a set of locations within that digital content reprensenting the media stream to embed information, (2) selecting a set of possible alterations to make at those locations, and (3) making a subset of the possible alterations. The set of locations and possible alterations is herein sometimes called a “watermark.” The subset of actual alterations that are made is herein sometimes called a “fingerprint.” The method determines a set of locations at which there are alternative versions of digital content representing the same media stream, such as one being the original and one being an alternative version of the same digital content, herein sometimes called the “original movie” and the “alt-movie,” or herein sometimes called the “original block” and the “alt-block” for a particular block in the digital content representing the media stream.

    Abstract translation: 一种在表示媒体流的数字内容中嵌入信息的方法。 该方法包括:(1)选择代替媒体流的数字内容中的一组位置以嵌入信息;(2)选择在这些位置进行的一组可能的改变,以及(3)制作可能的改变的子集。 这里的一组位置和可能的改变在这里有时被称为“水印”。所做的实际改变的子集在这里有时被称为“指纹”。该方法确定一组位置,其中存在代表 相同的媒体流,例如一个是原始的,一个是相同的数字内容的替代版本,在这里有时被称为“原始电影”和“alt-movie”,或者这里有时被称为“原始块”,并且 对于表示媒体流的数字内容中的特定块的“alt-block”。

    Data generating device capable of appending different watermarks to corresponding pages
    40.
    发明申请
    Data generating device capable of appending different watermarks to corresponding pages 有权
    数据生成装置能够将不同的水印附加到对应的页面

    公开(公告)号:US20060158688A1

    公开(公告)日:2006-07-20

    申请号:US11347284

    申请日:2006-02-06

    Applicant: Hiromi Mori

    Inventor: Hiromi Mori

    Abstract: A computer is provided with an application and a printer driver. A user of the computer generates image data using the applications. When the image data is for a plurality of pages, the user selects a desired watermark for each of the plurality of pages. The printer driver converts the image data into print data, and combines selected watermarks with the print data for corresponding pages, thereby generating updated print data. The updated print data is output as a single print job to the printer. The printer executes printing operations based on the print job so as to print an image on a plurality of pages, each formed with a corresponding watermark.

    Abstract translation: 计算机配有应用程序和打印机驱动程序。 计算机的用户使用应用程序生成图像数据。 当图像数据是用于多个页面时,用户为多个页面中的每个页面选择期望的水印。 打印机驱动程序将图像数据转换为打印数据,并将所选水印与相应页面的打印数据组合,从而生成更新的打印数据。 更新的打印数据作为单个打印作业输出到打印机。 打印机基于打印作业执行打印操作,以便在多个页面上打印每个形成有相应水印的图像。

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