Identity-based proxy signature scheme

doi:10.3778/j.issn.1002-8331.2009.28.033

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (28): 112-114.DOI: 10.3778/j.issn.1002-8331.2009.28.033

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Identity-based proxy signature scheme

ZHUO Ze-peng¹，WEI Shi-min²

1.School of Mathematical Science，Huaibei Coal Industry Teachers College，Huaibei，Anhui 235000，China
2.School of Computer Science and Technique，Huaibei Coal Industry Teachers College，Huaibei，Anhui 235000，China

Received:2008-05-27 Revised:2008-09-11 Online:2009-10-01 Published:2009-10-01
Contact: ZHUO Ze-peng

基于身份的代理签名方案

卓泽朋¹，魏仕民²

1.淮北煤炭师范学院数学科学学院，安徽淮北 235000
2.淮北煤炭师范学院计算机科学与技术学院，安徽淮北 235000

通讯作者: 卓泽朋

Abstract

Abstract: The braid groups are infinite non-commutative group.The braid groups have many hard problems that can be utilized to design cryptographic primitives，for example the word problem，conjugacy problem，root problem.This paper proposes the identity-based proxy signature scheme using the conjugacy search problem in the braid groups which are believed to be hard problem，and its security is also analyzed.

Key words: proxy signature, braid group, conjugacy problem

摘要： 辫群是一种非交换的无限群，该群中有许多困难问题是不可解的，如字问题、共轭问题和根问题等，利用这些困难问题可以去设计一些密码协议。介绍了辫群的基本概念、两个重要性质和辫群中的困难问题，在此基础上，利用辫群上的共轭查找问题构造了一个基于身份的代理签名，并对它的安全性进行了分析。

关键词: 代理签名, 辫群, 共轭问题

CLC Number:

TP310

ZHUO Ze-peng¹，WEI Shi-min². Identity-based proxy signature scheme[J]. Computer Engineering and Applications, 2009, 45(28): 112-114.

卓泽朋¹，魏仕民². 基于身份的代理签名方案[J]. 计算机工程与应用, 2009, 45(28): 112-114.

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Identity-based proxy signature scheme

基于身份的代理签名方案

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