| 一个安全的群签名方案 |
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| 引用本文： | 田金兵,刘古胜.一个安全的群签名方案[J].襄樊学院学报,2007,28(8):35-38. |
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| 作者姓名： | 田金兵 刘古胜 |
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| 作者单位： | 1. 海南师范大学,初等教育系,海南,海口,571158
2. 荆楚理工学院,数理系,湖北,荆门,448200 |
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| 摘 要： | 基于LRSW问题,以双线性映射为工具,提出一个新的群签名方案.方案由两个可信机构分别担当群主管GM和撤消主管RM.群主管GM负责为欲加入本群的用户颁发证书,使其成为合法的群成员;撤消主管RM可以打开群签名以识别签名人的身份.群成员的证书生成是基于LRSW困难问题,具有防伪造性.群签名是一个被盲化了的成员证书关于消息m的非交互式的零知识证明,因此,本方案在安全性方面满足群签名方案的安全特性.
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| 关 键 词： | 群签名 知识签名 LSRW问题 |
| 文章编号： | 1009-2854(2007)08-0035-04 |
| 修稿时间： | 2007年3月19日 |
A Secure Group Signature Scheme |
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| TIAN Jin-bing,LIU Gu-sheng.A Secure Group Signature Scheme[J].Journal of Xiangfan University,2007,28(8):35-38. |
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| Authors: | TIAN Jin-bing LIU Gu-sheng |
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| Institution: | TIAN Jin-bing LIU Gu-sheng |
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| Abstract: | Based on a problem introduced by Lysyanskaya,Rivest,Sahai and Wolf,using bilinear maps,this paper proposes a new group signature scheme.There exist two trusted frameworks such as group manager and revocation manager.The group manager issues a joining member a membership certificate,and the revocation manager is able to open a signature and reveal the identity of the signer.The membership certificate is unforgeable because it is based on LRSW problem.The group signature is a non-interactive zero-knowledge proof of a blinded membership certificate on the message m.Therefore,the group scheme proposed in this paper is in possession of all properties of security that a good group signature scheme should hold. |
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| Keywords: | Group signature Signature of knowledge LRSW problem |
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