CERNET2 super-scale dynamic multicast network-based security system framework principles

With the continuous increase of multicast nodes and the introduction of IPv6 technology, CERNET2 ultra-large-scale multicast applications and security will be facing greater challenges. Therefore, a new security framework for dynamic multicast, in which multicast key management domain is divided into the trunk and leaves domains, is presented to avoid the overall system cost about re-keying because of the frequent changes of the members in the group.