北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2006, Vol. 29 ›› Issue (s2): 1-3.doi: 10.13190/jbupt.2006s2.1.293

• 论文 •    下一篇

一个实用的门限方案成员加入协议

于佳1, 李国文2,郝蓉1,2,程震3   

  1. 1. 青岛大学 信息工程学院, 青岛 266071; 2. 山东大学 网络信息安全研究所,济南 250100; 3. 山东理工大学 计算机科学与技术学院, 淄博 255049
  • 收稿日期:2006-09-06 修回日期:1900-01-01 出版日期:2006-11-30 发布日期:2006-11-30
  • 通讯作者: 于佳

A Practical Member Enrollment Protocol for Threshold Schemes

YU Jia1, LI Guo-wen2, HAO Rong1,2, CHENG Zhen3   

  1. 1.College of Information Engineering, Qingdao University, Qingdao 266071,China;
    2.Institute of Network Security, Shandong University, Jinan 250100,China
    3. School of Computer Science and Technology, Shandong University of Technology, Zibo 255049
  • Received:2006-09-06 Revised:1900-01-01 Online:2006-11-30 Published:2006-11-30
  • Contact: YU Jia

摘要:

提出了一个实用的门限方案成员加入协议。当门限系统中加入新的成员时,协议可以为新成员产生新份额,同时旧的成员不需要改变他们自己的旧份额。与以前的协议不同,提出的协议非常简单、高效。最后,证明了协议的正确性和安全性。

关键词: 可验证秘密共享, 秘密再分发, 门限方案

Abstract:

A practical member enrollment protocol for threshold schemes is presented. The protocol can generate a new share for a new member when this member joins a threshold system. At the same time, the old members do not need to change their old shares. Different with previous protocols, the new protocol is very simple and efficient. Also, it is proved that the new protocol is correct and secure.

Key words: verifiable secret sharing, secret redistribution, threshold scheme

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