The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2013
Filed:
Dec. 02, 2009
Kapaleeswaran Viswanathan, Bangalore, IN;
Anjaneyulu Seetha Rama Kuchibhotla, Bangalore, IN;
Nagabhushana Ayyanahal Matad, Bangalore, IN;
Kapaleeswaran Viswanathan, Bangalore, IN;
Anjaneyulu Seetha Rama Kuchibhotla, Bangalore, IN;
Nagabhushana Ayyanahal Matad, Bangalore, IN;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
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.