摘要
近年来,联邦学习受到多个领域的广泛关注,而认证及会话密钥协商是保证通信实体之间安全传输、可靠通信的关键技术和基本的安全保障。根据横向联邦学习参与方数据特征,提出一种基于身份的无证书轻量级认证及密钥协商协议;参与方在密钥生成中心(KGC)完成注册后,利用公共参数计算各自的临时密钥和长期密钥完成认证、计算会话密钥;最后,采用扩展的CK(eCK)模型对所提协议进行安全性证明。性能分析表明:所提协议在计算性能和通信开销方面可以有效地控制成本,适用于单服务器下横向联邦学习的训练环境。
In recent years,federated learning has received extensive attention in many fields,but this technology inevitably causes data transmission security problems.However,authentication and key agreement are important to ensure secure transmission and reliable communication between communicating entities.This study suggests a lightweight certificateless authentication and key agreement protocol that is identity-based and takes into account the data properties of horizontal federated learning.The participants need to register at the key generation center(KGC)and use public parameters to calculate their temporary keys and long-term keys which is to complete authentication and calculate the session key.Subsequently,the eCK model is used to prove the security of the protocol proposed in this paper.A thorough analysis shows that this protocol is appropriate for a single-server horizontal federated learning environment since it has full security features,low processing and communication costs.
作者
任杰
黎妹红
杜晔
尹李纶谨
REN Jie;LI Meihong;DU Ye;YIN Liguanjin(Beijing Key Laboratory of Security and Privacy in Intelligent Transportation,Beijing Jiaotong University,Beijing 100044,China;School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044,China)
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2023年第2期397-405,共9页
Journal of Beijing University of Aeronautics and Astronautics
基金
国家自然科学基金(U1736114)
国家重点研发计划(2017YFB0802805)。
关键词
横向联邦学习
基于身份密码体制
无证书
认证及密钥协商
eCK模型
horizontal federated learning
identity-based cryptosystem
certificateless
authentication and key agreement
eCK model
