Consistency of group key exchange protocols

CAO Chun-jie1; MA Jian-feng1; GUO Yuan-bo2

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Consistency of group key exchange protocols

更新时间：2024-10-14

- Consistency of group key exchange protocols
- Issue 4, Pages: 71-76(2008)
- 作者机构：
  
  1. 西安电子科技大学计算机网络与信息安全教育部重点实验室
  2. 解放军信息工程大学电子技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN918
- Published：2008
- 稿件说明：
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CAO Chun-jie1, MA Jian-feng1, GUO Yuan-bo2. Consistency of group key exchange protocols[J]. 2008, (4): 71-76.
DOI：

CAO Chun-jie1, MA Jian-feng1, GUO Yuan-bo2. Consistency of group key exchange protocols[J]. 2008, (4): 71-76. DOI：

摘要

一致性是密钥交换协议的基本安全目标

但是在协议设计过程中非常难于把握且经常被忽视。对近年来基于GDH、基于口令和基于身份的几类可证明安全的群组密钥交换协议中几个经典的协议进行了仔细分析

分别发现了针对这些协议一致性的有效攻击。这些攻击破坏了群组的完整性

造成错误的群组通信。最后分别出了改进方案以克服存在的安全缺陷。

Abstract

The consistency is a basic security requirement

but it is much trickier and many times overlooked. By care-fully analyzed to several famous were found provably-secure group key exchange protocols at present

different attacks of the consistency to these protocols were found respectively. These attacks will result in that all the members have different view of peers’ identities and destroying the integrity of the current group. Furthermore

improvements to overcome the security vulnerabilities of these protocols were proposed.

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