Group key agreement scheme is more adaptable than group key distribution in DPG in which its membership can be frequently changed.
在群成员随时变动的动态对等群组中，群密钥协商比群密钥分配更适用。
Dynamic security of group key distribution is always the key point and difficult point in the research field of multicast security.
群密钥分配的动态安全性一直是组播安全研究的重点和难点。
A group key distribution scheme utilizing a polynomial expansion is proposed, which features in no traditional encryption and decryption.
提出了一种利用多项式展开的组密钥分配方案，其特点是不使用传统加密和解密。
In order to decrease the storage cost of group key distribution protocol, a secure group key distribute protocol based on the status key tree is proposed.
为了减少群组密钥分发协议的存储代价，提出了一种基于状态密钥树的群组密钥分发协议。
However, the modes of centralized access control and key distribution limit the extension of their group sizes.
然而，由于其集中式访问控制和密钥分配方式，限制了组规模的进一步扩展。
At present, group key management mainly divided into goup key distribution and group key agreement, both of them have their own character and can be used in different applications.
目前已有的组密钥管理协议主要包括组密钥分配协议和组密钥协商协议，总体来说，他们各有优缺点，适用于不同的情况。
The platform is suitable to the condition that a small group of people would like to exchange the information instantly among their laptop computers without the key distribution center.
该平台适用于在没有密钥分配中心的情况下，几个地位平等的用户临时的利用便携式电脑安全的进行信息交流。
Firstly, a composite method of part agreement and part distribution is adopted to establishment the cluster key, then, a full agreement method is adopted to establishment the group key.
该方案首先采用部分协商和部分分发相结合的方式建立簇密钥，然后采用完全协商的方式来建立组密钥。
The group key management problems this thesis studies mainly include energy-saving multicast key distribution, secure and efficient group rekeying, and key pre-distribution.
论文重点对节能的密钥分发、安全和高效的组密钥更新以及密钥预分发等组密钥管理的关键问题进行研究。
The group key management problems this thesis studies mainly include energy-saving multicast key distribution, secure and efficient group rekeying, and key pre-distribution.
论文重点对节能的密钥分发、安全和高效的组密钥更新以及密钥预分发等组密钥管理的关键问题进行研究。
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