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:
Feb. 21, 2012
Filed:
Jan. 17, 2008
Todd A. Merrill, Alpharetta, GA (US);
Todd A. Merrill, Alpharetta, GA (US);
Global Crypto Systems, Alpharetta, GA (US);
Abstract
Various systems, methods, and programs embodied in computer-readable mediums are provided for digital authentication using digitally signed images. In one representative embodiment, a method includes extracting a first image portion from an image selected by a first party, where the first image portion including a first encoded part of an second party digital signature, and obtaining a second image portion associated with the first image portion, where the second image portion including a second encoded part of the second party digital signature. The first and second encoded parts of the second party digital signature are decoded and validity of the second party digital signature is confirmed based upon a second party public key.