基于全同态加密的安全多方计算协议  

Secure Multi-Party Computation Protocol based on Fully Homomorphic Encryption

作　　者：涂航 TU Hang(Naval Staff,Beijing 100841,China)

机构地区：[1]海军参谋部,北京100841

出　　处：《通信技术》2021年第12期2674-2678,共5页Communications Technology

摘　　要：针对云计算环境下数据的隐私保护问题,在研究全同态加密技术的基础上设计了一个安全多方计算协议。该协议约定网络类型为同步网络,信道模式为可信的安全信道,敌手为半诚实的参与者,同时有一个服务器作为计算中心。参与者通过全同态加密算法预先对输入进行加密并将明文发送给服务器进行安全多方计算,服务器和其他参与者全程得不到该参与者的输入信息,保证了所有参与者的隐私。Aiming at the problem of data privacy protection in cloud computing environment,a secure multi-party computing protocol is designed based on the study of fully homomorphic encryption technology.This protocol stipulates that the network model is a synchronous network,the channel mode is a trusted secure channel,the adversary is a semi-honest participant,and there is a server as the computing center.The participants encrypt the input in advance through the fully homomorphic encryption algorithm and launch the plaintext to the server for secure multi-party computation.The server and other participants cannot get the input information of the participant,which ensures the privacy of all participants.

关 键 词：安全多方计算 全同态加密 安全协议 同态计算 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]