Improved Multicast Security Mechanism in Multi-Hop WiMax Network

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Provided by: Binary Information Press
Topic: Security
Format: PDF
Secure multicast has become more and more popular in multi-hop Wimax network service, however, many multicast algorithms do not provide backward and forward security, cannot ensure efficient key's updating and calculation cost, cannot scalable to a large group either. To solve these issues, this paper reviews the two typical multicast group key management schemes Logical Key Hierarchy (LKH) and One-way Function Tree (OFT), and then proposes an improved group key updating protocol for 802.16e Wimax network system based on the one way function.
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