| 摘要 |
This method of key distribution rekeys (605) a group of communication units (107) within an encrypted communication system with over-the-channel rekeying. The method uses a key management controller (101) to manage and distribute keys (1541) to a plurality of communication units and handle acknowledgments from the plurality of communication units that are delayed from receipt of the rekeying message. The rekeying message (615) is sent to any of the group of communication units (107) when an acknowledgment is not received (611) from one or more of the group of communication units (107).
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