Construction Methodologies for Improving Distributed System Security - The Horus and Ensemble Projects

Gossip-based scalable and reliable group key distribution framework

“…To support reliably group key distribution for large and dynamic groups, we add probabilistic reliable layer, which provides probabilistic reliable guarantees. Although it can not full reliability, its probabilistic reliability is almost a hundred percent [18], which can ensure most nodes receive message reliably. The highest layer, i.e., virtual synchrony layer (deterministic guarantees, such as SRM,RMTP, LBRM ) , only needs deal with few nodes recovery request, which avoids deterministic method scalability problem.…”

“…Gossip-based ones can overcome scalability problems [ 18]. Gossip algorithms [18] [19] recently became popular as a solution to address scalable and reliable multicast dissemination of information These algorithms are inspired by the theory of epidemics, in that communication is achieved by trying to "infect" as many nodes as possible. In these protocols, each member is in charge of forwarding each message to a set of other, randomly chosen group members.…”