理想格上强指定验证者的可截取签名方案  

Strongly specifying verifier’s interceptable signature scheme on ideal lattice

作　　者：王宇 陈辉焱 王克 辛红彩 王庆楠 姚云飞 Wang Yu;Chen Huiyan;Wang Ke;Xin Hongcai;Wang Qingnan;Yao Yunfei(Dept.of Electronic&Communication Engineering,Beijing Electronic Science&Technology Institute,Beijing 100070,China;School of Cyberspace Security,Beijing University of Posts&Telecommunications,Beijing 100876,China)

机构地区：[1]北京电子科技学院电子与通信工程系,北京100070 [2]北京邮电大学网络空间安全学院,北京100876

出　　处：《计算机应用研究》2024年第10期3149-3154,共6页Application Research of Computers

基　　金：中央高校基本科研业务费资助项目(3282023002);浙江省密码技术重点实验室开放课题(ZCL21009)。

摘　　要：现存的大多数可截取签名方案具有公开验证性,但在某些情况下可能会导致签名者的隐私泄露。为提高安全性,并使签名方案具有抗量子性,基于理想格上的ring-SIS问题,结合强指定验证者签名方案,提出一种新型的可截取签名方案。该方案采用均匀采样的异常中止技术,能够抵抗侧信道攻击。同时,证明了该方案的安全性和正确性。相较于其他方案,该方案在安全性、重复次数和签名尺寸等方面都表现出明显的优势。Most of the existing content extraction signature schemes publicly verify signatures,but in some cases,they may compromise the signer’s privacy.To enhance security and render the signature scheme resistant to quantum attacks,this paper proposed a new interceptable signature scheme based on the ring-SIS problem on the ideal lattice and integrated it with the strong specified verifier signature scheme.The scheme employed the anomaly abort technique of uniform sampling,capable of thwarting side-channel attacks.Additionally,this paper validated the security and correctness of the scheme.Compared to other schemes,this scheme exhibits clear advantages in security,number of repetitions,and signature size.

关 键 词：可截取签名 强指定验证者签名 理想格 ring-SIS 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]