Digital receipt for electronic data and methods and systems...

Details Digital receipt for electronic data and methods and systems... Digital receipt for electronic data and methods and systems...

2008-11-20

2010-10-19

Augustin, Evens J (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S076000, C705S064000

Reexamination Certificate

active

07818256

ABSTRACT:
Digital receipts for electronic data and computer-implemented methods and systems for creating such digital receipts involve, for example, generating a visual representation of the electronic data in a pre-defined format that visually represents the data without requiring that the represented data be embedded in the format, computing a mathematical representation of the electronic data and associating the mathematical representation of the electronic data with the visual representation of the electronic data, and receiving a user's digital signature on the associated visual and mathematical representations of the electronic data to evidence the user's approval of the represented electronic data.

REFERENCES:
patent: 7194426 (2007-03-01), Box
patent: 7451116 (2008-11-01), Parmelee et al.
patent: 2001/0018739 (2001-08-01), Anderson et al.
patent: 2003/0135740 (2003-07-01), Talmor et al.
patent: 2004/0078337 (2004-04-01), King et al.
patent: 2004/0230891 (2004-11-01), Pravetz et al.
patent: 2009/0037340 (2009-02-01), Hitchen et al.

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