MYKIL: A SECURE AND HIGHLY AVAILABLE KEY MANAGEMENT SYSTEM FOR LARGE GROUP MULTICAST

J.-H. Huang and S. Mishra

Keywords

Key management, large group multicast, scalability, availability, mobility

Abstract

This paper describes the design, implementation and evaluation of Mykil, a new key management system for supporting secure group multicast. Mykil was developed on a combination of group-based hierarchy and key-based hierarchy systems for secure group key management. The advantages of Mykil include a fast and efficient rekeying operation for large group sizes, continuous availability of the key management service in a disconnected network environment, an ability to map group structure to the underlying network infrastructure, and support for user mobility and smaller, hand-held devices. A prototype of Mykil has been implemented. The paper describes this implementation and reports on the performance measured.

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