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:
Jun. 03, 2014
Filed:
May. 25, 2010
Applicants:
Jin Hee Han, Daejeon, KR;
Young Sae Kim, Daejeon, KR;
Geon Woo Kim, Daejeon, KR;
Hong IL Ju, Daejeon, KR;
Su Gil Choi, Daejeon, KR;
Inventors:
Jin Hee Han, Daejeon, KR;
Young Sae Kim, Daejeon, KR;
Geon Woo Kim, Daejeon, KR;
Hong Il Ju, Daejeon, KR;
Su Gil Choi, Daejeon, KR;
Assignee:
Electronics and Telecommunications Research Institute, Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for sharing and updating a key using a watermark is disclosed. The method includes receiving an image to be encoded from an image input device encoding the image, and inserting a master key value as a watermark into the encoded image, for use as an input of a key derivation function.