An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles

CAI Yong-quan; LIU Yan

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An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles

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- An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles
- Acta Electronica Sinica Vol. 37, Issue S1, Pages: 87-91(2009)
- 作者机构：
  
  北京工业大学计算机学院,北京,100124
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP309
- Published：2009
- 稿件说明：
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CAI Yong-quan, LIU Yan. An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles[J]. Acta Electronica Sinica, 2009, 37(S1): 87-91.
DOI：

CAI Yong-quan, LIU Yan. An ID-based Group Signature Scheme Without Trusted PKG or Random Oracles[J]. Acta Electronica Sinica, 2009, 37(S1): 87-91. DOI：

摘要

本文提出了一种标准模型下基于身份的无可信中心的群签名方案

解决了群签名的前向安全性

并分析了新方案的正确性和安全性.分析结果表明

合法的群成员可以代表群得到有效群签名

仲裁者可以打开签名

且可以判断群管理者是否伪装成合法的群成员.本文还利用对时间段信息的管理实现了该签名的前向安全性

以抵抗密钥泄漏等情况.

Abstract

In a group signature scheme

any legal member of this group can sign on behalf of this group

and no one can find out which member is the actual signer except the group manager.The focus of this paper is to design a new ID-based group signature without trusted PKG (group manager) or random oracles

and the security of the scheme

such as forward security.According to the analysis result

legal group members can sign on behalf of the group; an arbiter (OM) can open a legal signature to find out the actual signer

and he can also point out that whether the group manager is legal or not.So this is a scheme without trusted PKG without random oracles.Besides

this paper takes advantage of the information of time section to implement the forward security of this scheme in case of key exposure or revocation of group members.

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Related Author

CAI Yong-quan

ZHANG Ke

LU Rong-bo

HE Da-ke

WANG Chang-ji

CHEN Ming

Related Institution

College of Math and Computer Science,Jishou University,Jishou

Laboratory of Information Security and National Computing Gird,Southwest Jiaotong University

Department of Computer Science, Sun Yat-sen University

College of Math and Computer ScienceJishou UniversityJishouHunan 416000China

Laboratory of Information Security and National Computing GirdSouthwest Jiaotong UniversityChengduSichuan 610031China

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