公开(公告)号：US20240072992A1

公开(公告)日：2024-02-29

申请号：US18312936

申请日：2023-05-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： YOUNG SIK MOON ,  JIYOUP KIM ,  HANBYEUL NA ,  HONG RAK SON ,  SEONGHYEOG CHOI

IPC: H04L9/00 ,  H04L9/08

CPC classification number: H04L9/008 ,  H04L9/0869

Abstract: A homomorphic encryption operator includes: a level configuration unit configured to set an encryption level by selecting a plurality of prime numbers of different values according to a scale factor condition used for multiplication of a homomorphic encryption operation and an increase/decrease condition for increasing or decreasing consecutively selected prime numbers, and a modular multiplication operator configured to perform lightweight modular multiplication using the selected plurality of prime numbers, wherein the level configuration unit includes: a level constructor configured to select prime number sets whose number have selected Hamming weights, respectively, based on the scale factor condition and the increase/decrease condition, and wherein the level configuration unit is further configured to configure the selected prime number sets with the encryption level using a prime number table.