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CRAW: Combination of Re-Keying and Authentication in Wireless Networks for Secure Multicast Increasing Efficiency of Member Join/Leave and Movement

Author(s): Elina Eidkhani | Melisa Hajyvahabzadeh | S. Anahita Mortazavi | Alireza Nemaney Pour

Journal: International Journal of Computer Networks & Communications
ISSN 0975-2293

Volume: 4;
Issue: 4;
Start page: 107;
Date: 2012;
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Keywords: Secure Multicast | Group Key Management | Wireless Networks | Member Authentication | One-Time Password

Recently, the number of requests for multicast services through the wireless networks has been increased. However, for successful deployment, security and efficiency of content delivery must be provided at first. This paper presents a new approach for secure multicast in wireless networks. This approach, CRAW (Combination of Re-keying and Authentication in Wireless networks) combines member authentication procedure with group key management protocol to provide an efficient group re-keying process. Onetime password is proposed for member authentication and CKC (Code for Key Calculation) is suggested for group key management in wireless networks. In fact, the combination of authentication with group key management in wireless networks results in a simple and secure mechanism both for authentication and group key management while mobile members join/leave a group or move inter-area. Simulation results show that CRAW reduces re-keying overhead at join from O(log2n+1) to O(1) while security requirements are saved. Also, CRAW introduces storing a main list to manage mobile members' location while they move intra-group inter-area.
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