计算机工程 ›› 2020, Vol. 46 ›› Issue (8): 106-111.doi: 10.19678/j.issn.1000-3428.0056046

• 网络空间安全 • 上一篇    下一篇

基于无证书密码体制的失败-停止环签名方案

张玉磊1, 宋婷婷1, 张永洁2, 王彩芬3   

  1. 1. 西北师范大学 计算机科学与工程学院, 兰州 730070;
    2. 甘肃卫生职业学院, 兰州 730070;
    3. 深圳技术大学 大数据和网络学院, 广东 深圳 518000
  • 收稿日期:2019-09-18 修回日期:2019-10-22 发布日期:2019-11-05
  • 作者简介:张玉磊(1979-),男,副教授,主研方向为公钥密码学、信息安全;宋婷婷,硕士研究生;张永洁,副教授;王彩芬,教授。
  • 基金项目:
    国家自然科学基金(61662069);甘肃省高等学校科研项目(2017A-003,2018A-207)。

Fail-Stop Ring Signature Scheme Based on Certificateless Cryptosystem

ZHANG Yulei1, SONG Tingting1, ZHANG Yongjie2, WANG Caifen3   

  1. 1. School of Computer Science and Engineering, Northwest Normal University, Lanzhou 730070, China;
    2. Gansu Health Vocational College, Lanzhou 730070, China;
    3. College of Big Data and Internet, Shenzhen Technology University, Shenzhen, Guangdong 518000, China
  • Received:2019-09-18 Revised:2019-10-22 Published:2019-11-05

摘要: 失败-停止群签名方案可抵抗强计算能力的敌手伪造签名,实现用户隐私信息的有效保护。为此,在失败-停止群签名方案的基础上,设计一种基于无证书密码体制的失败-停止环签名方案,使其同时具备强匿名性、可自主选择关联性和失败-停止特性,并且在随机预言模型下证明其满足自适应性选择消息攻击下的不可伪造性。性能分析结果表明,与同类环签名方案相比,该方案的密钥管理安全性更高且计算开销更小。

关键词: 失败-停止签名方案, 无证书密码体制, 环签名, 可选择关联性, 强匿名性

Abstract: Fail-stop group signature schemes can prevent opponents with strong compute power from counterfeiting signatures,and thereby implement privacy protection for users.On the basis of the fail-stop group signature scheme,this paper designs a fail-stop ring signature scheme using certificateless cryptosystem.In the scheme,the signature simultaneously combines strong anonymity and optional relevance with the fail-stop feature.Also,under the random oracle model,the scheme satisfies Existential UnForgeability against adaptive Chosen-Message Attacks(EUF-CMA).Performance analysis results show that the proposed scheme has less computational overhead and stronger security of key management than the existing ring signature schemes.

Key words: fail-stop signature scheme, certificateless cryptosystem, ring signature, optional relevance, strong anonymity

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