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.

Date of Patent:
Jul. 15, 2025

Filed:

Dec. 08, 2022
Applicant:

Electronics and Telecommunications Research Institute, Daejeon, KR;

Inventors:

Seong-Cheon Park, Daejeon, KR;

Hyunwoo Kim, Daejeon, KR;

Jung-Chan Na, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/06 (2006.01); H04L 9/00 (2022.01);
U.S. Cl.
CPC ...
H04L 9/008 (2013.01); H04L 9/0618 (2013.01);
Abstract

A method of integrating different homomorphic operations in homomorphic encryption is provided. The method includes receiving a homomorphic ciphertext and encryption scheme information from a ciphertext generating apparatus by using a communication interface, performing a homomorphic multiplication operation on the homomorphic ciphertext by using a homomorphic multiplication operator, analyzing the encryption scheme information to determine one operation of a re-linearization operation performed by a re-linearization operator and a key switching operation performed by a key switching operator by using a main controller, performing the determined one operation by using the re-linearization operator or the key switching operator, and performing a modulus switching operation on an operation result of the determined one operation by using a modulus switching operator.


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