| Hwang-多重代理多重签名方案的改进 |
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| 引用本文： | 徐秋亮,金永明,张波.Hwang-多重代理多重签名方案的改进[J].大连理工大学学报,2005,45(Z1):100-102. |
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| 作者姓名： | 徐秋亮 金永明 张波 |
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| 作者单位： | 山东大学,南校区,计算机科学与技术学院,山东,济南,250061 |
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| 基金项目： | 中国科学院资助项目;教育部科学技术研究项目 |
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| 摘 要： | 多重代理多重签名就是由多个人组成的原始签名者组授权由多个人组成的代理签名者组对消息进行签名. 通过对Hwang-多重代理多重签名方案的研究,发现了它的弱点,即可伪造对任意消息的签名. 对此提出了改进方案,并详细分析了其安全性. 改进后方案可抵抗现在已知的攻击,更加完善.
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| 关 键 词： | 数字签名 代理签名 多重签名 多重代理多重签名 |
| 文章编号： | 1004-5619(2005)04-0286-04 |
Modification for multi-proxy multi-signature scheme |
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| XU Qiu-liang,JIN Yong-ming,ZHANG Bo.Modification for multi-proxy multi-signature scheme[J].Journal of Dalian University of Technology,2005,45(Z1):100-102. |
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| Authors: | XU Qiu-liang JIN Yong-ming ZHANG Bo |
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| Abstract: | Multi-proxy multi-signature is a kind of proxy signature scheme.In this scheme,an original group of signers can authorize a group of proxy signers under the agreement of all singers both in the original group and proxy group.By analyzing Hwang's multi-proxy multi-signature scheme,a security weakness,that is, the signature of discretional message was forged,can be found.An improvement has been proposed to counter it.And the security of the improved scheme is particularly discussed in the paper,which can resist all known attacks and has become more perfection. |
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| Keywords: | digital signature proxy signature multisignature multi-proxy multi-signature |
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