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

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, handheld devices. A prototype of Mykil has been implemented. The paper describes this implementation and reports on the performance measured. [ABSTRACT FROM AUTHOR]