Provably secure anonymous authentication key agreement protocol for multicast group

被引：2

作者：

Feng T. ^{[1
,2
,3
]}

Liu Y.-Y. ^{[1
,4
]}

Ma J.-F. ^{[3
]}

机构：

[1] School of Computer and Communication, Lanzhou University of Technology

[2] Key Lab of the Network Security and Cryptology, Fujian Normal University

[3] Key Laboratory of Computer Networks and Information Security of Ministry of Education, Xidian University

[4] Technical Equipment Department, Economic Daily

来源：

Dianzi Keji Daxue Xuebao/Journal of the University of Electronic Science and Technology of China | 2011年 / 40卷 / 02期

关键词：

Anonymity; Authentication; Group technology; Key agreement; Network protocols; Network security;

D O I：

10.3969/j.issn.1001-0548.2011.02.023

中图分类号：

学科分类号：

摘要：

With the idea of ring signcryption, an efficient anonymous group key agreement scheme is presented based on the Bilinear Diffie-Hellman (BDH) assumption. The scheme establishes a secure group key under the premise of authenticating group members. For both internal and external group members the scheme achieves different degree of anonymity, that is, the external users can absolutely not learn any information about the internal membership structure, and the internal users only can find out the member composition but cannot recognize the identity of any member. In order to achieve the forward security and backward security of group key, new scheme supports group members to renew their group key when the external nodes join the group or the internal members leave the group. The proposed scheme can establish the group session key through only one round, and therefore, its computation complexity and storage cost are efficiently reduced.

引用

页码：273 / 277

页数：4

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