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针对异构分组无线传感器网络结构和应用特点,在加密通信中使用组密钥和对密钥.组密钥使用基于双向散列链自愈组密钥分发方法按会话进行更新.网络中有直接通信需求的节点间都以双线性对方式建立对密钥.对密钥与组密钥相结合,以非交互方式按会话进行更新.分析表明:方案支持节点插入和撤销,安全高效,资源开销合理,适用于无线传感器集中式管理网络.
Aiming at the structure and application characteristics of heterogeneous packet wireless sensor network, the group key and the key are used in the encrypted communication, and the group key is updated on a session-by-session basis using the key distribution method based on bidirectional hash chain self-healing group. The communication needs of nodes are bilinear paired way to establish the key.Key and group key combination, non-interactive way to update by session.Analysis shows that: program support node insertion and withdrawal, safe and efficient, resource Reasonable cost, suitable for wireless sensor centralized management network.