格上两方一轮身份认证协议  

A Two Party One Round Identity Authentication Protocol over Lattice

作　　者：王雄 吕晓晗 王文博 WANG Xiong;LV Xiaohan;WANG Wenbo(Cyberspace Security Department,Beijing Electronic Science and Technology Institute,Beijing 100070,P.R.China)

机构地区：[1]北京电子科技学院网络空间安全系,北京100070

出　　处：《北京电子科技学院学报》2024年第1期1-11,共11页Journal of Beijing Electronic Science And Technology Institute

基　　金：中央高校基本科研业务费资金资助(3282023052)。

摘　　要：在量子技术对传统密码冲击下,格上的口令认证密钥交换PAKE协议研究成为关注的热点。但是,当前格上PAKE协议大多通过两轮或三轮完成,且存在传输负载过重现象。而目前格上一轮协议多适用于一对一通信且不具有身份认证功能。针对以上问题提出的基于密钥共识的格上一轮身份认证协议,通过结合格上公钥加密、ASPH函数和密钥共识,实现了高效、安全的一轮通信中的身份认证与密钥协商。这一解决方案有望改善传统PAKE协议的问题,对于应对量子技术对密码学的挑战提供了一种思路。In the face of quantum technology′s impact on traditional cryptography,research on lattice⁃based Password⁃Authenticated Key Exchange(PAKE)protocols has gained significant attention.How⁃ever,current lattice⁃based PAKE protocols often require two or three rounds,leading to heavy transmission loads.Additionally,existing one⁃round lattice⁃based protocols are mainly suited for one⁃on⁃one communication and lack identity authentication.To address these issues,a novel lattice⁃based one⁃round identity authentication protocol based on key consensus has been proposed.This innovative solu⁃tion combines lattice⁃based public key encryption,ASPH functions,and key consensus to achieve effi⁃cient and secure identity authentication and key negotiation within a single communication round.This breakthrough has the potential to address the challenges posed by quantum technology to cryptography and extend its applicability to many⁃to⁃many communication scenarios.

关 键 词：密钥共识 格密码 ASPH(Approximate Smooth Projective Hash) 身份认证 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]