关键词: 域密钥管理, 自恢复, 分布式管理框架

Abstract: The traditional group key management doesn’t account for the difficulties caused by the characteristics of wireless mobile network，so it can’t be applied directly.Based on the analysis of the limitations of the traditional group key management，this paper focuses on a new kind of group key management applicable to wireless mobile network，the self-healing group key management.However，it is limited by the number of rekeying and its centralized management model doesn’t meet the large-scale network’s needs very well.Hence，this paper introduces the asynchronous update strategy of nodes’ private key，the digital signature technology and distributed management framework to one representative of the self-healing group key management，expands the finite rekeying to infinite and enhances the ability to resist attacks，which is more applicable to the large-scale wireless mobile network.

Key words: group key management, self-healing, distributed management framework