New constructions on broadcast encryption and key pre-distribution schemes

Abstract

This paper presents various new techniques on secure group communication schemes. We present a new broadcast encryption scheme RBE, being particularly efficient in multiple revocation, and a node-based key pre-distribution scheme, remedying the key overlapping problem of pool-based schemes. Starting with a detailed analysis on broadcast encryption and group key distribution schemes, we discuss the influence of join as well as the feasibility of including it in broadcast encryption schemes by means of performing full updating or overprovisioning. ©2005 IEEE.