Group rekey is triggered by the managers in the lower layer. The new group key is produced by the group manager and is distributed to all other managers except itself.

组密钥的更新由低层管理域触发，由子组管理者产生新的组密钥并发送给所有的管理域。

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Group rekey is triggered by the managers in the lower layer. The new group key is produced by the group manager and is distributed to all other managers except itself.

组密钥的更新由低层管理域触发，由子组管理者产生新的组密钥并发送给所有的管理域。

youdao