专利检索 ap:("Samsung Electronics Co., Ltd." OR "SNU R&DB Foundation" OR "Industry Academic Cooperation Foundation Chosun University") AND inv:"LEE, Yong Woo" 第 1 页

1.

发明公开
ENCRYPTION METHOD AND APPARATUS BASED ON HOMOMORPHIC ENCRYPTION USING COMPOSITION OF FUNCTIONS 审中-公开

公开(公告)号：EP3902195A1

公开(公告)日：2021-10-27

申请号：EP21169784.2

申请日：2021-04-22

申请人： Samsung Electronics Co., Ltd. , SNU R&DB Foundation , Industry Academic Cooperation Foundation Chosun University

发明人： NO, Jong Seon , LEE, Yong Woo , LEE, Eunsang , LEE, Joon Woo , KIM, Young Sik

IPC分类号： H04L9/00

摘要： An encryption method and apparatus based on homomorphic encryption using a composition of functions. The encryption method includes generating a ciphertext by encrypting data, and bootstrapping the ciphertext by performing a modular reduction based on a composition of a function for a modulus corresponding to the ciphertext.

2.

发明公开
METHOD AND APPARATUS FOR PROCESSING CIPHERTEXT BASED ON HOMOMORPHIC ENCRYPTION 审中-公开

公开(公告)号：EP3896895A1

公开(公告)日：2021-10-20

申请号：EP21163199.9

申请日：2021-03-17

申请人： Samsung Electronics Co., Ltd. , SNU R&DB Foundation , Industry Academic Cooperation Foundation Chosun University

发明人： NO, Jong Seon , LEE, Yong Woo , KIM, Young Sik , LEE, Joon Woo

IPC分类号： H04L9/00 , H04L9/30

摘要： A method and apparatus for processing a ciphertext based on homomorphic encryption. The method includes determining an approximate polynomial corresponding to a modulus reduction for bootstrapping a ciphertext based on samples extracted from the modulus reduction, and bootstrapping the ciphertext based on the approximate polynomial.