| 基于离散对数多重签名体制的改进 |
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| 引用本文： | 陆浪如,曾俊杰,张白愚,匡友华.基于离散对数多重签名体制的改进[J].通信学报,2002,23(6):1-5. |
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| 作者姓名： | 陆浪如 曾俊杰 张白愚 匡友华 |
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| 作者单位： | 1. 解放军信息工程大学,信息安全实验室,河南,郑州,450002
2. 解放军洛阳外语学院,计算机教研室,河南,洛阳,471000 |
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| 摘 要： | 通过分析研究基于Meta-El Gamal方案的多重签名体制和基于Schnorr方案的多重签名体制，我们发现这些体制中存在多个签名者如果在生成自己的密钥时相互合作就能达到日后否认消息签名的攻击手段，据此我们对这些体制的密钥生成部分进行了改进，提出了避免上述攻击新的多重签名体制。同时本文的方法在代理签名体制中也有应用。
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| 关 键 词： | 多签名体制 离散对数 密码 安全性 代理签名 |
| 文章编号： | 1000-436X(2002)06-0001-05 |
| 修稿时间： | 2001年3月13日 |
A modification for multisignature schemes based on DLP |
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| LU Lang-ru,ZENG Jun-jie,ZHANG Bai-yu,KUANG You-hua Information Security Lab.,Information Engineering Uni.PLA,Zhengzhou ,China, Computer Section,Luoyang Foreign Language Institute PLA,Luoyang ,China.A modification for multisignature schemes based on DLP[J].Journal on Communications,2002,23(6):1-5. |
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| Authors: | LU Lang-ru ZENG Jun-jie ZHANG Bai-yu KUANG You-hua Information Security Lab Information Engineering UniPLA Zhengzhou China Computer Section Luoyang Foreign Language Institute PLA Luoyang China |
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| Affiliation: | LU Lang-ru,ZENG Jun-jie,ZHANG Bai-yu,KUANG You-hua Information Security Lab.,Information Engineering Uni.PLA,Zhengzhou 450002,China, Computer Section,Luoyang Foreign Language Institute PLA,Luoyang 471000,China) |
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| Abstract: | We show a attack for purpose on most of which extend from signature schemes based on DLP . The attackers can deny that they had take part in process of signing some message with others . A modification is made for these schemes' key generations ,which can efficiently void this attack . And our idea can be applied to proxy signature schemes. |
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| Keywords: | multisignature deny discrete logarithm problem |
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