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:
Aug. 08, 2023
Filed:
Feb. 23, 2022
Applicant:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Inventors:
Jieun Eom, Hwaseong-si, KR;
Andrey Kim, Suwon-si, KR;
Deriabin Maksim, Suwon-si, KR;
Rakyong Choi, Suwon-si, KR;
Whan Ghang, Suwon-si, KR;
Dong-Hoon Yoo, Suwon-si, KR;
Yongwoo Lee, Suwon-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/00 (2022.01); H04L 9/08 (2006.01); H04L 9/30 (2006.01);
U.S. Cl.
CPC ...
H04L 9/008 (2013.01); H04L 9/085 (2013.01); H04L 9/3026 (2013.01);
Abstract
Disclosed is a method and apparatus for modulus refresh, where the method for modulus refresh of a ciphertext in homomorphic encryption includes receiving a first ciphertext corresponding to a first modulus, generating a second ciphertext by performing a blind rotation on the first ciphertext, and generating a target ciphertext corresponding to a second modulus greater than the first modulus based on the first ciphertext and the second ciphertext.