密码学报（中英文）2024，Vol.11Issue(4)：719-739,21.DOI:10.13868/j.cnki.jcr.000706
多方全同态加密研究进展
Research Progress on Multi-Party Fully Homomorphic Encryption
摘要
Abstract
Fully homomorphic encryption(FHE)supports computation on ciphertexts directly,guaranteeing the security and privacy of sensitive information operated in untrusted environments.To make it adapt to joint computation scenarios where private data are provided by multiple data owners,the problem of fully homomorphic encryption under multiple parties has attracted much attention.In the last decade,a large number of related work were published.The main technical lines are classified into threshold FHE,multi-key FHE,and multi-group FHE.Meanwhile,the development of multi-party FHE has further promoted progress in secure multiparty computation.In this paper,starting from traditional single-key FHE,the frontier progress of multi-party FHE is systematically and comprehensively overviewed,and the representative constructions are described in detail.Finally,an overall analysis of existing research is presented and the issues are summarized.关键词
全同态加密/门限全同态加密/多密钥全同态加密/多群全同态加密/安全多方计算Key words
fully homomorphic encryption(FHE)/threshold FHE(ThFHE)/multi-key FHE(MKFHE)/multi-group FHE(MGFHE)/secure multiparty computation分类
信息技术与安全科学引用本文复制引用
徐科鑫,王丽萍..多方全同态加密研究进展[J].密码学报（中英文）,2024,11(4):719-739,21.基金项目
密码科学技术全国重点实验室开放课题(MMKFKT202206)Open Fund of State Key Laboratory of Cryptology(MMKFKT202206) （MMKFKT202206）
