A novel dual-key management protocol based on a hierarchical multicast infrastructure in mobile internet

Cao, Jiannong; Liao, Lin; Wang, Guojun; Ma, Hao; Xiao, Bin

doi:10.1504/ijahuc.2009.024521

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…In conventional group communications scheme, all members in a group have the same access privileges. Many approaches for scalable group rekeying [1][2][3][4] have been proposed. The logical key hierarchy (LKH) [2] is a basic method in centralized environment.…”

Section: Related Workmentioning

confidence: 99%

Decentralized group key management for hierarchical access control using multilinear forms

Zhou

Wang

2014

Concurrency and Computation

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SUMMARYKey management becomes more difficult in multiprivileged group communications due to the dynamic membership and the complex relations between users and resources. Because centralized key management schemes have the drawbacks of the single point of failure, and performance bottleneck and distributed key management schemes are not scalable and lack of central control, decentralized key management schemes are proposed as a tradeoff between them. In this paper, we propose a decentralized group key management scheme using multilinear forms for dynamic multiprivileged groups. Once users join/leave the group and change their privileges, the related session keys should be updated. The rekeying in the joining operation is relatively simple because the keys are deduced from the previous keys based on a one-way function. When rekeying for one leaving/switching operation, a uniform rekeying material is negotiated between the related service groups (SGs) by using multilinear forms. Compared with other schemes in which several rounds of negotiations are executed for rekeying in each joining/leaving/switching operation, only one round of negotiation is required in each leaving/switching operation of our decentralized group key management scheme. At last, the affected session keys can be deduced by the related SGs. Our proposed scheme also supports the dynamic formation and decomposition of SGs, which provides good scalability. Security analysis is provided to show that the proposed scheme is secure. The performance analysis and the simulation results show that the proposed scheme reduces the communication cost greatly.

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Section: Related Workmentioning

confidence: 99%

Decentralized group key management for hierarchical access control using multilinear forms

Zhou

Wang

2014

Concurrency and Computation

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Tree-based Multicast Key Management in ubiquitous computing environment

Yao

Kong

et al. 2011

IJAHUC

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On channel assignment and multicast routing in multi-channel multi-radio wireless mesh networks

Jahanshahi

Dehghan

Meybodi

2013

IJAHUC

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Multicast is a key networking service, enabling one-shot delivery of information from a source to multiple destinations and is considered underlying for collaborating multimedia applications such as video conferencing, distance learning and other forms of content distributing over Multi-Channel Multi-Radio Wireless Mesh Networks (MCMR WMNs). Multicast protocol as designed in these networks, however, is tightly coupled with the specifics of the nodes' channel-radio associations to realise minimum interference communication. The mainstream of research in WMN multicasting is oriented towards heuristic or meta-heuristic strategies which basically take on a sequential approach to solve the channel assignment and the multicast routing as two disjoint sub-problems. The resulting network configurations would be sub-optimal in this case. It is given that the cross-interaction between the two sub-problems is an effect of the problem's specifications. In this paper, first, we propose a cross-layer mathematical formulation of joint channel assignment and multicast tree construction in MCMR WMNs, which, opposed to the existing schemes guarantees optimal solution. The simulation results demonstrate that our cross-layer design outperforms the Level Channel Assignment (LCA), Multi-Channel Multicast (MCM), the Genetic Algorithm (GA), Simulated Annealing (SA) and the Tabu Search (TS)-based methods proposed by Zeng et al. (2010) and Cheng et al. (2011) respectively, in terms of inter-channel interference. Second, since joint optimisation modelling has been relatively demanding in terms of complexity, we relax the optimality requirement and alternatively explore the option of a layered formulation in which to ensure an optimal solution for each sub-problem. Our alternative design is proved superior to the prior art in terms of interference minimisation too. We conduct an extensive series of simulations to analyse the optimality and complexity of our two design strategies. The overall result of the interference, is our optimality measurement. Also, complexity is evaluated in terms of the memory consumption as well as the required time to solve the multicast problem.

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A novel dual-key management protocol based on a hierarchical multicast infrastructure in mobile internet

Cited by 3 publications

References 13 publications

Decentralized group key management for hierarchical access control using multilinear forms

Decentralized group key management for hierarchical access control using multilinear forms

Tree-based Multicast Key Management in ubiquitous computing environment

On channel assignment and multicast routing in multi-channel multi-radio wireless mesh networks

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