Secure multicast groups on ad hoc networks

Abstract

In this paper we address the problem of secure multicast of data streams over a multihop wireless ad hoc network. We propose a dynamic multicast group management protocol that aims at solving problems that are specific to ad hoc networks such as mobility, unreliable links, and cost of multihop communication.The main idea is to have group members actively participate to the security of the multicast group, therefore reducing the communication and computation load on the source. Since the group security is distributed among the group members, we propose a service right certificate, to verify that a node is authorized to join the group, and also a corresponding revocation mechanism. We simulated our protocol within the ns-2 environment under various mobility, group size, and group dynamic scenarios. Our simulation results indicate that the communication cost and join delay of the protocol scale well when the group dynamic and nodes mobility increase. We have implemented the basic protocol in our ad hoc network testbed. We also proposed an extension to the basic secure multicast tree using multi-link capability combined with a k-out-of-N coding approach.

Reducing Frequency of Group Rekeying Operation

“…Centralized approach is suffered from the O(n) problem and bottleneck problem. GKMPAN [3], CKDS [12], Kaya et al solution [13] belong this group. In Decentralized approach, it divides the group into several sub groups to relieve O(n) problem and bottleneck problem.…”

“…The first category of research focuses on reducing the cost of each re-keying operation [1,3,5,7,9,13,14]. Especially, the local key hierarchy (LKH) method [1] reduces the cost into O(log n) by utilizing a binary key tree.…”

The Evolution of IDS Solutions in Wireless Ad-Hoc Networks To Wireless Mesh Networks

“…All aspects of the wireless sensor network are being examined including secure and efficient routing [29,31,32], data aggregation [33,34], group formation [35,36], and so on. Researchers therefore began focusing on building a sensor trust model to solve the problems beyond the capability of cryptographic security [37].…”

Power proximity based key management for secure multicast in ad hoc networks

“…Revocation is done periodically through the flooding of a certificate revocation list. Two significant differences between [11] and our work is that in [11], the authors assume the availability of mobile devices that are capable of performing asymmetric cryptographic operations, and do not consider the energy expenditure of the communication overhead as a design parameter.…”