Novel threshold signature scheme in standard model

doi:10.3778/j.issn.1002-8331.2010.16.030

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (16): 105-107.DOI: 10.3778/j.issn.1002-8331.2010.16.030

• 网络、通信、安全 • Previous Articles Next Articles

Novel threshold signature scheme in standard model

DA Qing-feng

Department of Computer Science，Qinghai Normal University，Xining 810008，China

Received:2009-12-28 Revised:2010-03-24 Online:2010-06-01 Published:2010-06-01
Contact: DA Qing-feng

一种新的标准模型下的门限签名方案

达青峰

青海师范大学计算机系，西宁 810008

通讯作者: 达青峰

Abstract

Abstract: A conspiracy attack is presented against the threshold signature scheme proposed by XU Jing.By the means of introducing each group member’s private key in the partial signature，a new threshold signature without trusted party is proposed and is provably secure in the standard model.This scheme is based on Waters signature scheme and Gennaro’s distributed key generation protocol.The scheme can successfully resist conspiracy attacks and forgery attacks.Finally，security and efficiency are also analyzed.

Key words: threshold signature, without trusted party, conspiracy attack, standard model

摘要： 针对徐静提出的门限签名方案，构造了一种合谋攻击．通过在部分签名中添加签名成员私有密钥的方法，基于Waters签名方案和Gennaro的分布式密钥生成协议，设计了一种新的无可信中心的门限签名方案。该方案能有效抵抗合谋攻击和伪造签名攻击．最后，对新方案进行了安全性和有效性分析。

关键词: 门限签名, 无可信中心, 合谋攻击, 标准模型

CLC Number:

TP309

DA Qing-feng. Novel threshold signature scheme in standard model[J]. Computer Engineering and Applications, 2010, 46(16): 105-107.

达青峰. 一种新的标准模型下的门限签名方案[J]. 计算机工程与应用, 2010, 46(16): 105-107.

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Novel threshold signature scheme in standard model

一种新的标准模型下的门限签名方案

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