Compared with the existing schemes, the proposed scheme can rekey real-time, provide a high level of security and reduce communication overhead at the same time.
与已有方
相比较，此方
时地更新组密钥，有着更好的安全性并具有较小的通信
销。
Compared with the existing schemes, the proposed scheme can rekey real-time, provide a high level of security and reduce communication overhead at the same time.
与已有方相比较，此方时地更新组密钥，有着更好的安全性并具有较小的通信销。
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