Homomorphic encryption system for supporting approximation arithmetic operation and method of operating same

A homomorphic encryption system includes: a homomorphic encryption device that encrypts original data into a first ciphertext using a homomorphic encryption algorithm; and a homomorphic encryption operation device receiving the first ciphertext from the homomorphic encryption device, and performing...

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Bibliographic Details
Main Authors SON HONG-RAK, KIM JI-YEOP, HAN-SUNG NA, MOON YOUNG-SIK
Format Patent
LanguageChinese
English
Published 12.05.2023
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:A homomorphic encryption system includes: a homomorphic encryption device that encrypts original data into a first ciphertext using a homomorphic encryption algorithm; and a homomorphic encryption operation device receiving the first ciphertext from the homomorphic encryption device, and performing an approximation arithmetic operation of a transcendental function for the first ciphertext and the second ciphertext by performing a homomorphic multiplication operation in a binary tree structure. 一种同态加密系统包括：同态加密设备，使用同态加密算法将原始数据加密为第一密文；以及同态加密运算设备，从同态加密设备接收第一密文，并且通过以二叉树结构执行同态乘法运算来针对第一密文和第二密文执行超越函数的逼近算术运算。
Bibliography:Application Number: CN202211319836