在考虑IPv6多地址多成员的基础上,提出一种基于IPv6的大型安全组播分层分组体系结构。不仅可实现负载均衡,而且增加了密钥传输的可靠性。根据IPv6地址分配特点,利用异或操作使节点最近加入系统,逻辑位置与物理位置相统一,同时使失效节点具有良好的自愈性。在利用网络时钟同步的前提下,组播源与各个子组管理服务器上采用统一混沌映射生成密钥,运用批处理方式更新密钥,有效减少了网络流量。 Based on the consideration of IPv6 multi-address multi-member, a large secure multicast hierarchical packet architecture based on IPv6 is proposed. Not only can achieve load balancing, but also increase the reliability of key transmission. According to the characteristics of IPv6 address allocation, the XOR operation is used to make the node join the system recently. The logical position and the physical position are unified, and the failed node has good self-healing capability. Under the premise of using network clock synchronization, the multicast source and each sub-group management server generate the key by using unified chaos mapping, and update the key by the batch processing method to effectively reduce the network traffic.