Abstract
The Internet keeps flourishing and enables unexpected possibilities to all aspects of individuals' life. Such distributed networking systems as wireless sensor networks and Internet of things are widely deployed. Yet, in the meantime secure group communication remains a challenging task in these environments. To address this challenge, this paper aims at lightweight group key establishment with strong security properties. We propose a broadcast encryption scheme based on one-way function trees and specify a dual-evolving approach for dynamic group-membership update. Then we complement the scheme by a content-protection protocol and further optimize the protocol in terms of communication efficiency. As with our analysis, our scheme can successfully prevent a key leakage attack, namely, collusion attack. Through our comprehensive evaluations, we confirm the effectiveness and the adequacy of our solution in distributed networking systems. Copyright © 2016 John Wiley & Sons, Ltd.
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