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Protecting the integrity of electronically derivative works

An integrity and document technology, applied in digital data protection, electrical components, electrical digital data processing, etc., can solve the problems of not being able to detect whether the original document has been changed by the lender, or whether the original document or form data has been changed.

Inactive Publication Date: 2009-06-03
ADOBE SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So in previous systems that dealt with the above situation, when the bank received the document, it was able to detect that the document had not been altered since the lender sent it, but it could not detect whether the lender had altered the original document
Similarly, a bank's underwriting department can detect that the document has not been altered after the credit analysis was added, but cannot detect if the original document or form data has been altered prior to the credit analysis

Method used

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  • Protecting the integrity of electronically derivative works
  • Protecting the integrity of electronically derivative works
  • Protecting the integrity of electronically derivative works

Examples

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Embodiment Construction

[0026] In the following detailed description of exemplary embodiments of the invention, reference is made to the accompanying drawings, which hereby form a part hereof, and in which are shown by way of illustrations specific exemplary embodiments in which the invention may be practiced. These embodiments have been described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and logical, mechanical, electrical, and other changes may be made without departing from the invention. range.

[0027] Some portions of the detailed description below are presented in terms of algorithms and symbolic representations that operate on bits of data in computer memory. These algorithmic descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art. An algorithm is here, and gener...

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Abstract

Systems and methods provide a mechanism to protect the integrity of electronically derivative works. One aspect of the systems and methods includes receiving an original document including a first digital signature. After the document is derived, a second digital signature is created. The second digital signature may include the first digital signature, a message digest from the first digital signature, and a message digest for the second digital signature. A further aspect of the systems and methods include assigning a security key to a document processing application. The assigned key may be used to produce the second document signature.

Description

[0001] priority statement [0002] This PCT application claims the benefit of the filing date of U.S. Patent Application Serial No. 11 / 375,807, filed March 14, 2006, entitled "Protecting the Integrity of Electronically Derivative works" , which is hereby claimed priority under 35 U.S.C. § 120 or 365(c), which application is hereby incorporated by reference in its entirety. technical field [0003] Embodiments relate generally to processing electronic works such as documents, and more particularly to protecting and verifying the integrity of electronic works. [0004] Limited Copyright Waiver [0005] A portion of the specification of this patent document contains material that is protected by copyright notice. The copyright owner has no objection to the reproduction by anyone of the patent document or the patent disclosure as it appears in the files or records of the United States Patent and Trademark Office, but reserves all other rights. Background technique [0006]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/00H04L9/32G06F7/04
CPCH04L2209/60G06F2221/2145H04L9/3239G06F21/64H04L9/3247
Inventor J·C·金
Owner ADOBE SYST INC
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