基于双线性对的密钥隔离群签名方案研究

doi:10.3969/j.issn.1671-1122.2018.06.008

信息网络安全 ›› 2018, Vol. 18 ›› Issue (6): 61-66.doi: 10.3969/j.issn.1671-1122.2018.06.008

基于双线性对的密钥隔离群签名方案研究

王越, 程相国(), 王戌琦

青岛大学计算机科学技术学院,山东青岛 266071

收稿日期:2018-03-19 出版日期:2018-06-15 发布日期:2020-05-11
作者简介:
作者简介：王越（1995—）,女,山东,硕士研究生,主要研究方向为信息安全和密码学;程相国（1969—）,男,山东,教授,博士,主要研究方向为信息安全和密码学;王戌琦（1994—）,男,山东,硕士研究生,主要研究方向为信息安全。
基金资助:
国家自然科学基金[61572267,61303197];山东省自然科学基金[ZR2013FQ005]

Research on Key-insulated Group Signature Scheme Based on Bilinear Pairings

Yue WANG, Xiangguo CHENG(), Xuqi WANG

College of Computer Science and Technology, Qingdao University, Qingdao Shandong 266071, China

Received:2018-03-19 Online:2018-06-15 Published:2020-05-11

摘要/Abstract

摘要：

针对群签名中的密钥泄露问题,文章将密钥隔离技术与群签名相结合,提出了一种具有密钥隔离性质的群签名方案。方案利用密钥隔离技术,定时更新用户与管理员密钥,使得某一时间段的密钥泄露不会影响其他时间段的密钥,提高了签名的安全性,且减少了密钥泄露带来的损失。方案不仅满足群签名的匿名性、可跟踪性和不可伪造性等安全性能,还具有密钥隔离、强密钥隔离和安全密钥更新等安全性质。方案对群成员的跟踪更为简单快捷,且方便地实现了群成员的加入和删除。利用双线性对运算,大大提高了签名效率。

关键词: 群签名, 密钥隔离, 双线性对

Abstract:

In order to solve the problem of key leakage in group signature, this paper proposes a group signature scheme with key isolation property by combining key isolation technology with group signature. The scheme uses key isolation method to update secret keys of user and administrator periodically so that key leakage in one time slot will not affect secret keys in other time slots, which improves the security of signature and reduces the loss caused by key leakage. This scheme not only satisfies the security properties of group signature such as anonymity, traceability and unforgeability, but also has some security properties such as key isolation, strong key isolation and security key update. This scheme is more simple and quick to track the group members, and is more convenient to add and delete group members. The scheme greatly improves the efficiency of signature by using bilinear pairings algorithm.

Key words: group signature, key isolation, bilinear pairings

中图分类号:

TP309

王越, 程相国, 王戌琦. 基于双线性对的密钥隔离群签名方案研究[J]. 信息网络安全, 2018, 18(6): 61-66.

Yue WANG, Xiangguo CHENG, Xuqi WANG. Research on Key-insulated Group Signature Scheme Based on Bilinear Pairings[J]. Netinfo Security, 2018, 18(6): 61-66.

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参考文献 19

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基于双线性对的密钥隔离群签名方案研究

Research on Key-insulated Group Signature Scheme Based on Bilinear Pairings

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