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:
May. 27, 2025
Filed:
Feb. 03, 2023
Applicants:
Seoul National University R&db Foundation, Seoul, KR;
Industry-academic Cooperation Foundation, Chosun University, Gwangju, KR;
Inventors:
Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01); H04L 9/00 (2022.01);
U.S. Cl.
CPC ...
H04L 9/0825 (2013.01); H04L 9/008 (2013.01);
Abstract
A homomorphic encryption operation key management system receives a public key and a hierarchical Galois key from a client device, verifies validity of a token in response to receiving the token and a request for a homomorphic encryption operation key for the client device from a server, and generates the homomorphic encryption operation key using the public key and the hierarchical Galois key and transmits the homomorphic encryption operation key to the server when the token is valid.