An approach for establishing secure communication among multiple multicast groups using a multi-master directory is disclosed. The multi-master directory is on a per object and per attribute access controls basis. The event service nodes, which can implemented as event servers, are distributed throughout...http://www.google.de/patents/US7089211?utm_source=gb-gplus-sharePatent US7089211 - Directory enabled secure multicast group communications
Directory enabled secure multicast group communications
