一种改进的基于SM2的代理签名方案

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英文篇名：Improved Proxy Signature Scheme Based on SM2 作者：宋靖文 ; 张大伟 ; 孟吴同 ; 高凡 ; 刘晓东 英文作者：SONG Jingwen;ZHANG Dawei;MENG Wutong;GAO Fan;LIU Xiaodong;School of Computer and Information Technology,Beijing Jiaotong University;Institute of Network Information Security,Shandong University; 关键词：椭圆曲线 ; SM2数字签名 ; 代理签名 英文关键词：elliptic curve;;SM2 digital signature;;proxy signature 中文刊名：ZZDZ 英文刊名：Journal of Zhengzhou University(Natural Science Edition) 机构：北京交通大学计算机与信息技术学院;山东大学网络信息安全研究所; 出版日期：2018-12-17 15:18 出版单位：郑州大学学报(理学版) 年：2019 期：v.51 基金：国家自然科学基金项目(61672091);; 广西可信软件重点实验室研究课题项目(KX201531) 语种：中文; 页：ZZDZ201902002 页数：8 CN：02 ISSN：41-1338/N 分类号：12-19

摘要

在分析现有基于SM2的代理签名方案的基础上,设计了一种改进的代理签名方案.方案通过改进授权信息的生成方式,在无需可信任方生成证书的情况下依然能满足可识别性和不可否认性,同时能够防止恶意代理签名者伪造授权信息及代理签名.安全分析表明,改进的方案还满足可验证性、可区分性和不可伪造性等性质.实验测试表明,方案具有良好的可行性,与已有的SM2代理签名方案相比,改进后的方案在验证效率上提高了约26%.
        On the basis of analyzing the existing proxy signature scheme based on SM2,an improved proxy signature scheme was designed. The scheme improved the generation of authorization information,and it was identifiable and undeniable without generating a certificate by the trusted party. At the same time,it could prevent malicious proxy signers from forging delegation information and proxy signatures.The security analysis showed that the improved scheme also had the properties of verifiability,distinguishability and unforgeability. The experimental results showed that the scheme was feasible. Compared with the existing SM2 proxy signature scheme,the improved scheme could increase the verification efficiency by about 26%.

引文

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