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Secure proxy signature scheme with fast revocation in the standard model

ISSN号：1005-8885
期刊名称：《中国邮电高校学报：英文版》
时间：0
分类：TP309[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术] TP393.08[自动化与计算机技术—计算机应用技术;自动化与计算机技术—计算机科学与技术]
作者机构：[1]Applied Mathematics Department, Xidian University, Xi'an 710071, China, [2]Key Laboratory of Computer Networks and Information Security, Ministry of Education, Xidian University, Xi'an 710071, China
相关基金：This work was supported by the National Natural Science Foundation of China （60673072, 60803149）, the National Basic Research Program of China （2007CB311201）.

作者： LIU Zhen-hua[1,2], HU Yu-pu[2], ZHANG Xiang-song[1], MA Hua[1]

关键词：代理签名, 安全模型, 签名方案, 撤销, 标准模型, 安全框架, 双线性对, 安全要求, public key cryptography, proxy signature, proxy revocation, security mediator, bilinear pairings, standard model

中文摘要：

代理签名是重要密码的原语并且在众多的应用被建议了。托付的权利的撤回是代理签名计划的一个必要问题。在这篇文章，有快撤回的代理签名计划的一个安全模型被形式化。在正式安全框架下面，有快撤回的一个代理签名计划基于双线性的配对被建议。一个安全调停人(SEM ) 是一个联机部分信任的服务者，被介绍检验一位代理签名人是否根据保证签名或他 / 她在撤回表存在。而且，代理签名人必须与 SEM 合作产生有效代理签名，因此，建议计划有快撤回的性质。没有依靠随机的神谕，建议计划基于计算 Diffie-Hellman (CDH ) 难驾驭假设是 provably 安全的，并且为安全代理签名满足所有安全要求。

英文摘要：

Proxy signature is an important cryptographic primitive and has been suggested in numerous applications, Tne revocation oI delegated rights is an essential issue of the proxy signature schemes. In this article, a security model of proxy signature schemes with fast revocation is formalized. Under the formal security framework, a proxy signature scheme with fast revocation based on bilinear pairings is proposed. A security mediator （SEM）, which is an on-line partially trusted server, is introduced to examine whether a proxy signer signs according to the warrant or he/she exists in the revocation list. Moreover, the proxy signer must cooperate with the SEM to generate a valid proxy signature, thus the proposed scheme has the property of fast revocation. The proposed scheme is provably secure based on the computational Diffie-Hellman （CDH） intractability assumption without relying on the random oracles, and satisfies all the security requirements for a secure proxy signature.

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