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Zhiwei Wang Improvement on the fault-tolerant group key agreement protocol of Zhao et al. Security and Communication Networks 9

Version of Record online: 27 JAN 2012 | DOI: 10.1002/sec.414

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There exists a drawback in the protocol of Zhao et al. After two rounds of trying, an adversary can impersonate any other group member in the third round. We propose an improved protocol to overcome this drawback.

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