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一种公钥自认证的(t,n)门限签名方案
引用本文:郑明辉,王小非,崔国华,祝建华.一种公钥自认证的(t,n)门限签名方案[J].华中科技大学学报(自然科学版),2007,35(11):99-102.
作者姓名:郑明辉  王小非  崔国华  祝建华
作者单位:1. 华中科技大学,计算机科学与技术学院,湖北,武汉,430074;湖北民族学院,计算机科学与技术系,湖北,恩施,445000
2. 华中科技大学,计算机科学与技术学院,湖北,武汉,430074
基金项目:国家自然科学基金 , 湖北省教育厅中青年人才基金
摘    要:将公钥自认证的概念引入门限签名,提出了一种公钥自认证的(t,n)门限签名方案.该方案实现了门限签名,并且能在验证个人签名(或群签名)有效性的过程中通过一个逻辑单步同时对个人公钥(或群公钥)的真实性进行自认证,而不需认证机构颁发额外的公钥证书.分析表明,所提出的方案能够抵抗泄密、共谋、伪造和假冒等主动攻击.

关 键 词:密码学  门限签名  公钥自认证  主动攻击
文章编号:1671-4512(2007)11-0099-04
修稿时间:2006年10月10

A (t, n) threshold signature scheme based on self-certified public keys
Zheng Minghui,Wang Xiaofei,Cui Guohua,Zhu Jianhua.A (t, n) threshold signature scheme based on self-certified public keys[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(11):99-102.
Authors:Zheng Minghui  Wang Xiaofei  Cui Guohua  Zhu Jianhua
Abstract:The concept of self-certified public keys was introduced in threshold signature.Self-certified public keys-based(t,n) threshold signature scheme based on was proposed,in which any t or more members in the group could cooperate with each other to generate a valid group signature,and the authentication of the self-certified member/group public keys can be confirmed simultaneously with a logically single step in the procedure of verifying the member/group signature.This scheme was secure against active attacks including compromising,conspiracy,forgery,and impersonation attacks.
Keywords:cryptography  threshold signature  self-certified public keys  active attacks
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