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从密钥管理与多播安全通信的循环模型出发 ,引出多播安全通信中组密钥更新的可扩展性需求和批量处理需求 .基于密钥图方案给出了独立更新的实现算法 ,以及批量密钥更新的实现算法 .
Based on the round-robin model of key management and multicast secure communication, the scalability requirements and batch processing requirements of group key update in multicast secure communication are introduced.An algorithm for implementing independent updating based on key-graph scheme is proposed, Key update algorithm.