期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2009
卷号：9
期号：10
页码：80-84
出版社：International Journal of Computer Science and Network Security
摘要：In this paper, we address the problem of multi-party user authentication and key agreement whereby a party gains assurance of the identity of other parties involved in a protocol for preventing impersonation and unauthorized access. Our scheme utilizes the idea of Buttyan, Nagy proposed multi-party challenge -response protocol. The proposed protocol allows each participant to directly verify all the other parties that were alive during the protocol run. Our protocol uses minimum number of messages required to solve the multi-party entity authentication problem. Specifically, we construct a multiparty secret key generation scheme which employs simple XOR operations. The authenticity of the protocol is assured by a digital signature scheme. Security attributes of our protocol are presented and analyzed as well.
关键词：authentication; public key cryptography; nonce; key agreement
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