基于SM2的无证书盲签名方案  

Certificateless blind signature scheme based on SM2

作　　者：唐卫中[1,2] 张大伟 佟晖[2] Tang Weizhong;Zhang Dawei;Tong Hui(School of Computer&Information Technology,Beijing Jiaotong University,Beijing 100044,China;Dept.of Cyber Security,Beijing Police College,Beijing 102202,China;Beijing Key Laboratory of Security&Privacy in Intelligent Transportation,Beijing 100044,China)

机构地区：[1]北京交通大学计算机与信息技术学院,北京100044 [2]北京警察学院网络安全保卫系,北京102202 [3]智能交通数据安全与隐私保护技术北京市重点实验室,北京100044

出　　处：《计算机应用研究》2022年第2期552-556,共5页Application Research of Computers

基　　金：国家自然科学基金资助项目(U1736114);北京警察学院校局合作课题(2021KXJ10)。

摘　　要：针对现有无证书盲签名方案计算复杂度过高的问题,基于国密算法SM2,提出了一种高效无证书盲签名方案,该方案不需要双线性对操作。基于椭圆曲线离散对数问题(ECDLP)的困难性,在随机预言模型下对该方案进行了形式化分析,能够对类型Ⅰ和类型Ⅱ攻击均具有可证明的安全性。与现有无证书盲签名方案进行性能对比,分析结果表明,该方案计算开销远低于其他几种同类型的方案。In view of the high computational cost of the existing certificateless blind signature schemes,this paper proposed an efficient certificateless blind signature scheme based on SM2,which did not require bilinear pairing operation.Based on the difficulty of the elliptic curve discrete logarithm problem(ECDLP),it was analyzed formally and found to be provably secure against both the Type-Ⅰand Type-Ⅱattacks.Compared with the existing certificateless blind signature schemes,the performance analysis show that the computing cost of the proposed certificateless blind signature scheme is far less than other similar schemes.

关 键 词：SM2 无证书密码技术 盲签名 随机预言模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]