公开(公告)号：US06735575B1

公开(公告)日：2004-05-11

申请号：US09324241

申请日：1999-06-02

Applicant: Salim G. Kara

Inventor： Salim G. Kara

IPC: G06F1760

CPC classification number: H04N1/32133 ,  G07B17/00508 ,  G07B17/00661 ,  G07B2017/00588 ,  G07B2017/00717 ,  G07D7/0047 ,  G07F7/08 ,  G07F7/12 ,  G07F17/42 ,  G09F2003/0254 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3236 ,  H04N2201/3269 ,  H04N2201/3271

Abstract: Preprinted forms are used in a general purpose printing device to allow for the subsequent verification of the authenticity of a printed document such as a ticket for transportation services. In operation, the user accesses the seller of the goods/services and during an information exchange with the seller the user inputs at least a portion of the preprinted data from the form. The seller then uses this information to formulate a printable control indicia which is then printed on the form at the user's location. When the form is subsequently presented to the seller, for example when the user attempts to board an aircraft using the form he/she printed, the preprinted portion of the form is used to obtain a decipher key which in turn is used to decipher the control indicia. Inability to decode the control indicia indicates that the printed material on the form may not be authentic.

Abstract translation: 预印表格用于通用打印设备，以允许随后验证打印文件的真实性，例如运输服务的机票。 在操作中，用户访问商品/服务的卖方，并且在与卖方的信息交换期间，用户从表单输入预打印数据的至少一部分。 然后，卖方使用该信息来制定可打印的控制标记，然后将其印在用户位置的表格上。 当形式随后呈现给卖方时，例如当用户尝试使用他/她打印的形式登上飞行器时，使用形式的预打印部分来获得解密密钥，其又被用于解密控制 标记。 无法解码控制标记表示表单上的打印材料可能不正确。

公开(公告)号：US20040074973A1

公开(公告)日：2004-04-22

申请号：US10411354

申请日：2003-04-09

Inventor： Nelson Schneck ,  Charles F. Duggan ,  Robert Jones ,  Daoshen Bi

IPC: G06K009/00 ,  H04L009/00 ,  G06K019/02

CPC classification number: B42D25/42 ,  B41M3/144 ,  B42D25/00 ,  B42D25/23 ,  B42D25/309 ,  B42D25/333 ,  B42D25/382 ,  B42D25/387 ,  B42D25/41 ,  H04N1/32133 ,  H04N1/32144 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/327 ,  H04N2201/3271

Abstract: The invention relates to identification documents, and in particular to pre-printing processing covert images, such as UV or IR images, provided on such identification documents. In one implementation, the invention provides a method of processing a digital image that is to be printed on a surface of an identification document as a fluorescing-capable image to improve the quality of the image. Edges or boundaries are detected within the image, the detected edges or boundaries forming an intermediate image. The edges or boundaries within the image are emphasized, and the emphasized image is used for printing the covert image. In some implementations of the invention, a digital watermark is embedded in the covert image.

Abstract translation: 本发明涉及识别文件，特别涉及在这种标识文件上提供的预打印处理隐蔽图像，例如UV或IR图像。 在一个实施方式中，本发明提供一种处理要在身份证件的表面上印刷的数字图像作为荧光图像以提高图像质量的方法。 在图像内检测边缘或边界，检测到的边缘或边界形成中间图像。 图像中的边缘或边界被强调，并且强调图像用于打印隐蔽图像。 在本发明的一些实施方案中，数字水印嵌入在隐蔽图像中。

公开(公告)号：US20040030899A1

公开(公告)日：2004-02-12

申请号：US10312029

申请日：2003-08-19

Inventor： Jung-Soo Lee ,  Jong-Uk Choi ,  Han-Ho Lee

IPC: H04L009/00

CPC classification number: H04N19/467 ,  G06T1/0064 ,  G06T1/0078 ,  H04N1/32154 ,  H04N1/3216 ,  H04N1/32309 ,  H04N1/3232 ,  H04N2201/3236 ,  H04N2201/327

Abstract: For the purpose of designing watermark to be robust against image modification such as geometric modification (rotating, cutting, enlarging/shrinking, etc.), compression, and blurring, the watermark is embedded in frequency domain after formed as 2 dimensional shape, for example radial or concentric shape. In detecting watermark, it is possible to effectively detect the watermark, by using relation to a generated watermark in case where the peak is detected.

Abstract translation: 为了将水印设计成对诸如几何修改（旋转，切割，放大/缩小等）的图像修改的鲁棒性，压缩和模糊，将水印嵌入在频域中，例如形成为二维形状 径向或同心的形状。 在检测水印时，可以通过在检测到峰值的情况下利用生成的水印来有效地检测水印。

公开(公告)号：US06664976B2

公开(公告)日：2003-12-16

申请号：US10100233

申请日：2002-03-13

Applicant: Neil E. Lofgren ,  Geoffrey B. Rhoads

Inventor： Neil E. Lofgren ,  Geoffrey B. Rhoads

IPC: G09G500

CPC classification number: G06T1/0071 ,  G06F17/30247 ,  G06T2201/0051 ,  G06T2201/0052 ,  G06T2201/0065 ,  H04N1/2179 ,  H04N1/32144 ,  H04N1/32283 ,  H04N2201/3215 ,  H04N2201/3226 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/3246 ,  H04N2201/3247 ,  H04N2201/3253 ,  H04N2201/3274

Abstract: Digital watermarking technology is used in an image management system. Images are identified by digital watermarks. The images are stored so as to be indexed according to their unique identifiers. In the preferred embodiment, related images are grouped into a set of images through a common watermark identifier. A particular image within the set of images is identified through a hash of the particular image.

公开(公告)号：US20030196086A1

公开(公告)日：2003-10-16

申请号：US10391565

申请日：2003-03-20

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tomochika Murakami ,  Satoru Wakao

IPC: H04L009/00

CPC classification number: H04N1/32122 ,  H04N2201/3235 ,  H04N2201/3236

Abstract: An object is that even if a transmitting end delivers data without adding signature data thereto, a receiving end can verify the originality of the data. The transmitting end registers the signature data of the data on an external data managing device on a network together with identification information for uniquely identifying the data. The receiving end requests and acquires the signature data of the data together with the identification information extracted from the data, from the external data managing device on the network. The receiving end can check the originality of the data using the signature data acquired from the external data managing device on the network.

Abstract translation: 目的是即使发送端传送数据而不向其添加签名数据，接收端可以验证数据的原始性。 发送端将数据的签名数据与用于唯一地识别数据的标识信息一起登记在网络上的外部数据管理装置上。 接收端从网络上的外部数据管理装置请求并获取数据的签名数据以及从数据中提取的识别信息。 接收端可以使用从网络上的外部数据管理装置获取的签名数据来检查数据的原始性。

公开(公告)号：US20030145200A1

公开(公告)日：2003-07-31

申请号：US10062636

申请日：2002-01-31

Inventor： Guy Eden

IPC: H04L009/00

CPC classification number: H04N1/32101 ,  H04L9/3236 ,  H04L9/3247 ,  H04N2201/0091 ,  H04N2201/3236 ,  H04N2201/3281

Abstract: A system and method are provided for authenticating data transmission between a network-connected digital scanner and a terminal. The method comprises: scanning a document at a digital scanner; signing the scanned document with a private key of a first asymmetric key-pair to create a first signature; transmitting the scanned document and first signature to a network-connected terminal; and, at the terminal, using a public key of the first key-pair to authenticate the transmitted document. Typically, signing the scanned document with a private key of a first asymmetric key-pair to create a first signature includes: creating a one-way hash function of the scanned document; and, encrypting the one-way hash function with the private key. Then, using a public key of the first key-pair to authenticate the transmitted scanned document includes: creating a one-way hash function of the transmitted document; decrypting the transmitted first signature with the public key; and, comparing the one-way hash function of the transmitted document to the decrypted signature. Some aspects of the method include the further steps of: at the digital scanner, establishing a user identity test, for example a PIN number, associated with the terminal; and submitting proof of user identity when a document is to be transmitted. Then, the scanned document and signature are transmitted in response to passing the user identity test, for example inputting the PIN number.

Abstract translation: 提供了一种系统和方法，用于认证网络连接的数字扫描仪与终端之间的数据传输。 该方法包括：在数字扫描仪上扫描文件; 用第一非对称密钥对的私钥对扫描的文档进行签名以创建第一签名; 将扫描的文档和第一签名发送到网络连接的终端; 并且在终端，使用第一密钥对的公开密钥对所发送的文档进行认证。 通常，用第一非对称密钥对的私钥对扫描文档进行签名以创建第一签名包括：创建扫描文档的单向散列函数; 并用私钥加密单向散列函数。 然后，使用第一密钥对的公开密钥对发送的扫描文档进行认证，包括：创建所发送的文档的单向散列函数; 用公开密钥解密所发送的第一签名; 以及将所发送的文档的单向散列函数与解密的签名进行比较。 该方法的一些方面包括以下步骤：在数字扫描仪处建立与终端相关联的用户身份测试，例如PIN号码; 并在发送文件时提交用户身份证明。 然后，响应于通过用户身份测试，例如输入PIN号码来发送扫描的文档和签名。

公开(公告)号：US20030126444A1

公开(公告)日：2003-07-03

申请号：US10323774

申请日：2002-12-20

Applicant: Canon Kabushiki Kaisha

Inventor： Satoru Wakao ,  Keiichi Iwamura

IPC: H04L009/00

CPC classification number: G06T1/0021 ,  H04N1/32101 ,  H04N2201/3226 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3236 ,  H04N2201/3239

Abstract: If it is verified that image data generated by an imaging device has not been modified, a first verification device generates watermarked image data by embedding watermark for detecting a modified portion in the image data. The first verification device further generates second verification data (digital signature) of the watermarked image data. A second verification device verifies whether or not the image data has been modified, e.g., using the second verification data. If the image data has been modified, the second verification device detects what portion of the image data has been modified.

Abstract translation: 如果验证了由成像装置生成的图像数据未被修改，则第一验证装置通过嵌入用于检测图像数据中的修改部分的水印来生成加水印图像数据。 第一验证装置进一步生成水印图像数据的第二验证数据（数字签名）。 第二验证装置验证图像数据是否已被修改，例如使用第二验证数据。 如果图像数据已被修改，则第二验证装置检测图像数据的哪一部分已被修改。

公开(公告)号：US06587949B1

公开(公告)日：2003-07-01

申请号：US09335219

申请日：1999-06-17

Applicant: Eran Steinberg

Inventor： Eran Steinberg

IPC: G06F1130

CPC classification number: G06F21/85 ,  G06F12/1408 ,  H04N1/2112 ,  H04N1/2158 ,  H04N1/32128 ,  H04N5/77 ,  H04N5/772 ,  H04N5/907 ,  H04N2201/0049 ,  H04N2201/0051 ,  H04N2201/3235 ,  H04N2201/3236

Abstract: A secure storage device with the identical external dimensions, form factor and hardware connectivity configuration of a standard removable storage device, for securing digital data such as digital images from digital cameras at the acquisition stage. Original digital camera data is saved in the memory of the secure storage device after performing one or more security functions, including encryption, creation of an authentication file, adding data to the image data such as fingerprinting, and adding secure annotations such as separate data included in an image header. These processes are transparent to a host device receiving secure data from the storage device because standard protocol is used to write to the secure storage device. The device prepares original authentication data from original digital camera data, and encrypts and stores both the original authentication data and the original image data. The use of the device includes reading the original image data on a separate computer, by means of direct downloading of the data and or mounting the removable storage device on the computer. The computer is able to read data on the raw transfer level as if the device is a standard unsecured storage device. On the content level, the data remains secure. The computer can be programmed with software whereby the encrypted original authentication data can be decrypted by a user having a password key. Additional software may enable the computer to verify the authentication data of the image data for questionable authenticity. The secure storage device secures data from any computerized device that stores data on a removable storage device, such as a portable computer.

Abstract translation: 具有与标准可移动存储设备相同的外部尺寸，外形尺寸和硬件连接配置的安全存储设备，用于在采集阶段保护来自数字照相机的数字数据，例如数字图像。 在执行一个或多个安全功能之后，原始数字照相机数据被保存在安全存储设备的存储器中，包括加密，创建认证文件，向诸如指纹的图像数据添加数据，以及添加诸如分离的数据的安全注释 在图像标题中。 这些过程对于从存储设备接收安全数据的主机设备是透明的，因为使用标准协议来写入安全存储设备。 该设备从原始数码相机数据准备原始认证数据，并加密并存储原始认证数据和原始图像数据。 该设备的使用包括通过直接下载数据和/或将可移动存储设备安装在计算机上，在单独的计算机上读取原始图像数据。 计算机能够读取原始传输级别的数据，就像设备是标准的不安全存储设备一样。 在内容层面上，数据保持安全。 可以用软件对计算机进行编程，由此可以由具有密码密钥的用户解密加密的原始认证数据。 附加的软件可以使得计算机能够验证图像数据的认证数据是否有问题的真实性。 安全存储设备将数据从存储在可移动存储设备（例如便携式计算机）上的数据的任何计算机化设备确保。

公开(公告)号：US06577336B2

公开(公告)日：2003-06-10

申请号：US09087206

申请日：1998-05-29

Applicant: Mohammad A. Safai

Inventor： Mohammad A. Safai

IPC: H04N5225

CPC classification number: H04N1/32101 ,  H04N1/32128 ,  H04N9/045 ,  H04N2101/00 ,  H04N2201/3205 ,  H04N2201/3235 ,  H04N2201/3236 ,  H04N2201/3281

Abstract: Digital cameras and methods for using digital cameras incorporate or append authentication stamps in digital images. Each authentication stamp contains information that is useful in authenticating the source of a digital image, and thus an authentication process can use the authentication stamp to determine whether the digital image is authentic or was modified outside the camera.

Abstract translation: 使用数码相机的数码相机和方法在数字图像中合并或附加认证图章。 每个认证戳记包含在认证数字图像的源中有用的信息，因此认证过程可以使用认证戳来确定数字图像是真实的还是在相机外部被修改。

公开(公告)号：US06499105B1

公开(公告)日：2002-12-24

申请号：US09621697

申请日：2000-07-21

Applicant: Hiroshi Yoshiura ,  Kazuo Takaragi ,  Ryoichi Sasaki ,  Seiichi Susaki ,  Hisashi Toyoshima ,  Tsukasa Saito

Inventor： Hiroshi Yoshiura ,  Kazuo Takaragi ,  Ryoichi Sasaki ,  Seiichi Susaki ,  Hisashi Toyoshima ,  Tsukasa Saito

IPC: H04L932

CPC classification number: H04L63/12 ,  G06F21/10 ,  G06T1/0021 ,  G06T1/005 ,  G06T2201/0063 ,  G06T2201/0081 ,  H04L9/3236 ,  H04L9/3247 ,  H04L63/0442 ,  H04L63/08 ,  H04L63/126 ,  H04L2209/56 ,  H04L2209/60 ,  H04L2463/103 ,  H04N1/32144 ,  H04N7/163 ,  H04N21/2541 ,  H04N21/42684 ,  H04N21/44 ,  H04N21/4622 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/835 ,  H04N2201/323 ,  H04N2201/3236

Abstract: This invention provides a method for identifying a purchaser who purchased content from which an illegal copy was produced. A provider system encrypts purchased by the purchaser using a public key of a purchaser system and sends the encrypted content to the purchaser system. The purchaser system creates a digital signature of the content with the use of a private key of its own and embeds the created digital signature into the received content. When an illegal copy is found, the provider system verifies the digital signature, embedded in the illegal copy as a digital watermark, to identify the purchaser who purchased the content from which the illegal copy was produced.

Abstract translation: 本发明提供一种用于识别购买从其产生非法拷贝的内容的购买者的方法。 提供者系统使用购买者系统的公开密钥来购买购买者，并将加密的内容发送给购买者系统。 购买者系统通过使用其自身的私钥来创建内容的数字签名，并将创建的数字签名嵌入到接收的内容中。 当发现非法副本时，提供者系统将嵌入在非法拷贝中的数字签名作为数字水印进行验证，以识别购买从其中产生非法拷贝的内容的购买者。