METHOD AND SYSTEM FOR PROCESSING HOMOMORPHIC ENCRYPTED DATA

WIPO Patent Application WO/2023/128340

A1

The present invention is a data processing method using homomorphic encryption, performed by a processor of a data user device. The method comprises the steps of: transmitting, to a data server, a data combination request for data user data; according to the data combination request, receiving a combinable external data list from the data server; determining a combination condition with any one piece of external data from among the external data list; receiving encrypted external data from the data server; homomorphically encrypting the user data; combining the encrypted user data with the encrypted external data by using the combination condition; and decrypting only a combination result corresponding to the combination condition, and transmitting the decrypted combination result to the data server.

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AN YONG DAE (KR)
JUNG SEUNG WOO (KR)

PCT/KR2022/019463

July 06, 2023

December 02, 2022

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DESILO INC (KR)

H04L9/00; H04L9/40

KR20180136267A	2018-12-24
KR20210104655A	2021-08-25
KR20210064675A	2021-06-03
KR102303253B1	2021-09-17
US20190280880A1	2019-09-12
KR102401485B1	2022-05-24

INVENSYNC INTELLECTUAL PROPERTY GROUP (KR)

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