Abstract
In this paper, we present a secure group key management scheme for hierarchical mobile ad hoc networks. Our approach aims to improve both scalability and survivability of group key management for large-scale wireless ad hoc networks. To achieve our goal, we propose the following approaches: (1) a multi-level security model, which follows a modified Bell-La Padula security model that is suitable in a hierarchical mobile ad hoc networking environment, and (2) a decentralized group key management infrastructure to achieve such a multi-level security model. Our approaches reduce the key management overhead and improve resilience to any single point failure problem. In addition, we have developed a roaming protocol that is able to provide secure group communication involving group members from different groups without requiring new keys; an advantage of this protocol is that it is able to provide continuous group communication even when the group manager fails.
Original language | English (US) |
---|---|
Pages (from-to) | 560-577 |
Number of pages | 18 |
Journal | Ad Hoc Networks |
Volume | 6 |
Issue number | 4 |
DOIs | |
State | Published - Jun 2008 |
Keywords
- Ad hoc network
- Group key management
- Hierarchy
- Many-to-many group communication
- Security
ASJC Scopus subject areas
- Software
- Hardware and Architecture
- Computer Networks and Communications