Abstract
Network security and its energy efficiency are facing tougher challenges for mobile ad hoc networks (MANETs) due to emerging purposive strategic internal attacks conducted by smart malicious nodes and unavoidable external attacks. Most of the current works investigated the group key management for scalability and efficiency performance in MANETs to defend the external attacks, while some works envisioned the intrusion detection system or trust management to defend the internal attacks. However, fewer related protocols or algorithms could combine them well to enhance dual security performance as well as energy efficiency in MANETs. To this end, we have proposed a novel group key management protocol with high energy efficiency for the strategic mobile scenario of MANETs, which is provided with three functions to address the issues of improving security and energy efficiency performance: (1) designing a self-organized group establishing algorithm for strategy mobile application scenarios to ensure stable groups in spite of users' mobility with reducing the cost of rekeying operation, (2) proposing a lightweight contributory key agreement and authentication mechanism based on the group Diffie-Hellman protocol for enhancing global security, and (3) researching a strategic mobile management mechanism based on the Prufer codec method handling the effect of mobility impacts to enhance the multicast energy efficiency and provide secret communication among roaming users in MANETs. Both theoretical analyses and simulation results have demonstrated that our protocol is more energy-efficient for strategy mobile application scenario of MANETs with a large number of users.
Highlights
Mobile ad hoc networks (MANETs) are composed of a set of mobile nodes wirelessly connected without a support of any fixed infrastructure
4 Group key management we mainly present our group key management for the strategic mobile scenario of MANETs which relies on the aforementioned grouping algorithm and DH method
To sum up, compared with the other two schemes, our method could reduce the value of Average number of group operations (ANO) always being the lower level, which reflected that our group key management protocol can effectively save the communication, computation, and storage overhead in the strategic mobile scenario of MANETs
Summary
Mobile ad hoc networks (MANETs) are composed of a set of mobile nodes wirelessly connected without a support of any fixed infrastructure. We design and propose a lightweight contributory key agreement and authentication mechanism based on the group Diffie-Hellman key management protocol in MANETs. we build a strategic mobile management model based on the Prufer codec algorithm handling the energy effect of mobility issues to enhance the multicast efficiency and provide secret communication among roaming users in MANETs. 2 Related works A possible way to resist malicious nodes is to use behavior-based detection technology performed by normal network nodes through overhearing the communication in their neighborhood. To the best of our knowledge, fewer existing works consider the combination of group key management with high scalability, energy efficiency, and survivable group communication system in MANETs. In addition, to build a strategic mobile management model based on the Prufer codec algorithm handling the effect of mobility issues, our work is the first that considers the strategy mobile application scenarios for MANETs and designs an online self-organized group establishing algorithm of such scenarios to enhance the maneuverability putting the secure group operation in MANETs into effect
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