Title: A novel scheme for secure group communication in multicast network

Authors: N.M. Saravana Kumar; S. Lavanya

Addresses: Department of CSE, Bannari Amman Institute of Technology, Erode, Tamilnadu 638401, India ' Department of IT, Sri Krishna College of Engineering and Technology, Coimbatore, Tamilnadu 641008, India

Abstract: Group key management is an important framework and functional building block for any secure multicast architecture. To improve the performance and scalability of rekeying for group key management in large-scale systems, a novel scheme was proposed. In this paper, we present dynamic and large-scale groups, and the overhead of key generating and key updating is usually relevant to the group size, which becomes a performance bottleneck in achieving scalability. The overhead of key management can be shared by the sub-group controller (SGC) and group controller, and in addition, the new protocol conduces to constant computation and communication overhead during rekeying and enhances more security. Users in the systems are grouped into sub-groups based on their subscription span. The inter-group and intra-group communication is done with the help of group key and sub-group key, respectively. An analysis shows that the cost of rekeying operations is reduced and security breaches have been reduced with the proposed group key management.

Keywords: network security; group communication; secure communication; multicast networks; group key management; rekeying; group size.

DOI: 10.1504/IJSN.2015.070409

International Journal of Security and Networks, 2015 Vol.10 No.2, pp.65 - 75

Received: 07 Jan 2014
Accepted: 24 Jun 2014
Published online: 05 Jul 2015 *

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