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    • 1. 发明授权
    • Secure document workflow
    • 安全文档工作流程
    • US08477379B2
    • 2013-07-02
    • US12629070
    • 2009-12-02
    • Kapaleeswaran ViswanathanAnjaneyulu Seetha Rama KuchibhotlaNagabhushana Ayyanahal Matad
    • Kapaleeswaran ViswanathanAnjaneyulu Seetha Rama KuchibhotlaNagabhushana Ayyanahal Matad
    • G06K15/02
    • G06Q10/10G06F21/64H04L9/3247H04L2209/34
    • Presented is a method, for a participant in a secure document workflow, of generating workflow information for authenticating a document. The method comprises: receiving an image of the document; generating workflow information for the document image, including a document image descriptor dependent upon the appearance of the document image for later verifying the authenticity of a version of the document image that has been printed and scanned, the verification comprising electronically combining or comparing the document image descriptor with said version of the document image; generating a digital signature for later verifying the authenticity of the workflow information, the digital signature being derived from the workflow information using a cryptographic key associated with the participant; adding the digital signature to the workflow information; and communicating the document image and the workflow information to another workflow participant.
    • 提出了一种用于安全文档工作流中的参与者的方法,用于生成用于认证文档的工作流信息。 该方法包括:接收文档的图像; 生成文档图像的工作流信息,包括文件图像描述符,该文档图像描述符取决于文档图像的外观,用于随后验证已经打印和扫描的文档图像的版本的真实性,该验证包括电子地组合或比较文档图像 描述符与所述版本的文档图像; 生成数字签名以用于随后验证工作流信息的真实性,使用与参与者相关联的加密密钥从工作流信息导出数字签名; 将数字签名添加到工作流信息; 并将文档图像和工作流信息传送到另一个工作流参与者。
    • 7. 发明申请
    • SECURE DOCUMENT WORKFLOW
    • 安全文件工作流程
    • US20110080618A1
    • 2011-04-07
    • US12629070
    • 2009-12-02
    • Kapaleeswaran VISWANATHANAnjaneyulu Seetha Rama KuchibhotlaNagabhushana Ayyanahal Matad
    • Kapaleeswaran VISWANATHANAnjaneyulu Seetha Rama KuchibhotlaNagabhushana Ayyanahal Matad
    • G06K15/02
    • G06Q10/10G06F21/64H04L9/3247H04L2209/34
    • Presented is a method, for a participant in a secure document workflow, of generating workflow information for authenticating a document. The method comprises: receiving an image of the document; generating workflow information for the document image, including a document image descriptor dependent upon the appearance of the document image for later verifying the authenticity of a version of the document image that has been printed and scanned, the verification comprising electronically combining or comparing the document image descriptor with said version of the document image; generating a digital signature for later verifying the authenticity of the workflow information, the digital signature being derived from the workflow information using a cryptographic key associated with the participant; adding the digital signature to the workflow information; and communicating the document image and the workflow information to another workflow participant.
    • 提出了一种用于安全文档工作流中的参与者的方法,用于生成用于认证文档的工作流信息。 该方法包括:接收文档的图像; 生成文档图像的工作流信息,包括文件图像描述符,该文档图像描述符取决于文档图像的外观,用于随后验证已经打印和扫描的文档图像的版本的真实性,该验证包括电子地组合或比较文档图像 描述符与所述版本的文档图像; 生成数字签名以用于随后验证工作流信息的真实性,使用与参与者相关联的加密密钥从工作流信息导出数字签名; 将数字签名添加到工作流信息; 并将文档图像和工作流信息传送到另一个工作流参与者。