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:
Mar. 25, 2014
Filed:
Aug. 31, 2010
Doo Ho Choi, Daejeon, KR;
Yong-je Choi, Daejeon, KR;
Doo Ho Choi, Daejeon, KR;
Yong-Je Choi, Daejeon, KR;
Electronics & Telecommunications Research Institute, Daejeon, KR;
Abstract
A masking operation method for a symmetric key encryption system includes, when at least two Substitution-boxes (S-boxes) are input, generating a masking S-box table for one S-box which was input; and performing an operation on one masking S-box by referring to the generated masking S-box table. Further, the masking operation method for the symmetric key encryption system includes performing an operation on a remaining masking S-box for a remaining S-box, which was input, by referring to the masking S-box table.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile