Keeping group communications private: An up-to-date review on centralized secure multicast

Abstract

The secure multicast field has been extensively studied for more than a decade now and there exist numerous proposals throughout academic literature. This paper presents a selection of those most important and popular to the date, focusing on centralized schemes due to their high popularity and the recent publication of alternatives that do not appear in previous revisions. Comparisons are provided and special attention is paid to communications and storage overhead. © 2011 Springer-Verlag.