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电子学报  2009 

一种基于身份信息无可信中心无随机预言的群签名

, PP. 87-91

Keywords: 基于身份群签名,无随机预言,无可信中心,前向安全,双线性映射

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Abstract:

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.

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