Member filter technique is employed in the cluster key distribution.

簇密钥分发则采用成员过滤技术来实施。

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Through creating the cluster key, the protocol reduces the key storage cost and resolves the problem of high communication cost for key distribution and renewing.

通过建立簇密钥对，降低了密钥存储开销，解决了密钥对建立和更新过程中通信开销大的问题。

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According to the root-controlling and distributing group key management schemes, this paper proposes a novel layer-cluster key management technique and resolves specific defects of the two schemes.

并在集中式和分布式两种组密钥管理方案的基础上，提出了新的层簇式密钥管理架构，并解决了这两种方案存在的安全缺陷。

youdao

According to the root-controlling and distributing group key management schemes, this paper proposes a novel layer-cluster key management technique and resolves specific defects of the two schemes.

并在集中式和分布式两种组密钥管理方案的基础上，提出了新的层簇式密钥管理架构，并解决了这两种方案存在的安全缺陷。

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