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:
Sep. 07, 2021
Filed:
Feb. 07, 2019
Applicant:
Crypto Lab Inc., Seoul, KR;
Inventors:
Jung Hee Cheon, Seoul, KR;
Yongsoo Song, Seoul, KR;
Andrey Kim, Seoul, KR;
Miran Kim, Seoul, KR;
Kyoohyung Han, Seoul, KR;
Assignee:
Crypto Lab Inc., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01); G06F 17/17 (2006.01); H04L 29/06 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 9/008 (2013.01); G06F 17/17 (2013.01); H04L 9/0618 (2013.01); H04L 63/0428 (2013.01);
Abstract
An operation apparatus and method for processing a homomorphic encrypted message are disclosed. The method includes producing an approximate polynomial corresponding to an operation function to be applied to a homomorphic encrypted message and approximately operating the homomorphic encrypted message using the approximate polynomial. Thus, an encrypted message may be efficiently processed.