Cryptanalysis on Improved Proxy Multi-signature Scheme

doi:10.3969/j.issn.1000-3428.2010.17.052

Computer Engineering ›› 2010, Vol. 36 ›› Issue (17): 155-157.

• Networks and Communications • Previous Articles Next Articles

Cryptanalysis on Improved Proxy Multi-signature Scheme

CAO Feng

(School of Mathematics and Information, Shanghai Lixin University of Commerce, Shanghai 201620)

Online:2010-09-05 Published:2010-09-02

改进代理多重签名方案的安全性分析

曹锋

(上海立信会计学院数学与信息学院，上海 201620)

作者简介:曹锋(1977－)，男，博士，主研方向：密码学，网络安全
基金资助:
上海市市本级财政部门预算基金项目资助(1138IA0005)；上海高校选拔培养优秀青年教师科研专项基金资助项目(slx08024)

Abstract

Abstract: This paper analyzes a proxy multi-signature scheme and points out some problems in this scheme. The proxy signer can modify the proxy warrant if the delegation is not careful. The original signers can forge proxy signer’s signature. The original signers can forge a valid proxy multi-signature. Anyone can be framed.

Key words: proxy signature, multi-signature, proxy multi-signature, security

摘要： 对一个代理多重签名方案进行分析，指出该方案中存在的安全性漏洞，包括代理授权的不当会导致代理人有能力修改代理授权证书，所有原始签名人合谋可以伪造出代理人的数字签名，原始签名者能够合谋伪造出一个有效的代理多重签名，以及任何合法的签名者可能被别人陷害。

关键词:

mso-ascii-font-family: 'Times New Roman', mso-hansi-font-family: 'Times New Roman', mso-font-kerning: 0pt">代理签名, 多重签名, 代理多重签名, 安全性

CLC Number:

TP393.08

CAO Feng. Cryptanalysis on Improved Proxy Multi-signature Scheme[J]. Computer Engineering, 2010, 36(17): 155-157.

曹锋. 改进代理多重签名方案的安全性分析[J]. 计算机工程, 2010, 36(17): 155-157.

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URL:

https://www.ecice06.com/EN/Y2010/V36/I17/155

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改进代理多重签名方案的安全性分析

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