| 摘要 |
Nodes, systems and methods for distributing a group key control message are disclosed. The system mainly includes a root node and child nodes. The apparatus includes a distribution tree establishment node. The method mainly includes: establishing a distribution tree for the group key control message in the group key management system, a root node delivering the group key control message to the child nodes according to the distribution tree; the child nodes receiving the group key control message delivered from the root node, forwarding or locally processing the received group key control message. With the present disclosure, a replication/distribution mechanism for the group key control message is established within the group key management system, thereby eliminating the dependence of the group key management system on the deployed environment multicast service, and improving the availability and expansibility of the group key management system.
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