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一个公开可验证的秘密共享新个体加入协议
引用本文:李李,莫礼平,周恺卿.一个公开可验证的秘密共享新个体加入协议[J].计算机应用与软件,2011,28(5).
作者姓名:李李  莫礼平  周恺卿
作者单位:1. 郴州职业技术学院计算机系,湖南,郴州,423000
2. 吉首大学数学与计算机科学学院,湖南,吉首,416000
3. 长沙理工大学计算机与通信工程学院,湖南,长沙,410114
基金项目:湖南省自然科学基金项目(08JJ3124)
摘    要:针对文献4]中的秘密共享新个体加入协议的不足之处,改进并构造了一种非交互式的公开可验证的秘密共享新个体加入协议。在改进的协议中,任何人都可公开验证新加入个体秘密份额的正确性,弥补了原协议的安全缺陷。经过分析与验证,改进的协议是正确且安全的。

关 键 词:秘密共享  新个体加入  公开可验证  

A PUBLICLY VERIFIABLE SECRET SHARING NEW MEMBER EXPANSION PROTOCOL
Li Li,Mo Liping,Zhou Kaiqing.A PUBLICLY VERIFIABLE SECRET SHARING NEW MEMBER EXPANSION PROTOCOL[J].Computer Applications and Software,2011,28(5).
Authors:Li Li  Mo Liping  Zhou Kaiqing
Affiliation:Li Li1 Mo Liping2 Zhou Kaiqing31(Department of Computer,Chenzhou Vocation Technology College,Chenzhou 423000,Hunan,China)2(College of Mathematics and Computer Science,Jishou University,Jishou 416000,China)3(College of Computer and Communication Engineering,Changsha University of Science and Technology,Changsha 410114,China)
Abstract:Based on Xu Jingfang's protocol for member expansion in a secret sharing scheme,a publicly verifiable protocol for member expansion in secret sharing scheme is proposed.In this scheme,everybody can verify correctness of the share of new member,which eliminates defect of the original protocol.Validity and security of the proposed protocol has been verified.
Keywords:Secret sharing New member expansion Public verification  
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