The invention discloses a key management method for a distributed wireless sensor network based on a one-way function, which supports network expansion and node dynamic movement. The new node is added to the network, the new nodes and network neighbor nodes can establish a secure communication on the key; when the node from the neighbor node communication range is removed, the original and the communication of neighbor node revocation key; key used for a long time, update on key nodes. The method has low requirement to node storage resources, pre storage nodes need only a one-way function, a pair of private key and public key subset, the neighbor node can establish a high probability of communication on the key; improve the network security performance, network node capture does not affect other nodes, link security, implementation of the invention the purpose of.
【技术实现步骤摘要】
【技术保护点】
1.一种基于单向函数的分布式无线传感器网络密钥管理方法,其特征在于,无线传感器网络包括基站、传感器节点两类节点,各节点有唯一身份编号IDij,所述密钥管理方法包括如下步骤:1)在网络规模为n的网络中,部署前,基站首先产生拥有N个初始公钥的初始公钥集合S:{UK10,UK20L UKi0L UKN0},其中UKi0为第i个初始公钥,n=N×N;2)基站利用单向函数H(x),及初始公钥集合S产生一个公钥集合P:(math)??(mfencedopen='['close=']')?(mtable)?(mtr)?(mtd)?(msub)?(mi)ID(/mi)?(mn)11(/mn)?(/msub)?(msub)?(mi)UK(/mi)?(mn)11(/mn)?(/msub)?(/mtd)?(mtd)?(msub)?(mi)ID(/mi)?(mn)12(/mn)?(/msub)?(msub)?(mi)UK(/mi)?(mn)12(/mn)?(/msub)?(/mtd)?(mtd)?(mi)L(/mi)?(/mtd)?(mtd)?(msub)?(mi)IDKij对应私钥;4)基站从公钥集合P中选 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:黄杰,黄蓓,欧国华,黎娟,邓夏阳,
申请(专利权)人:东南大学,
类型:发明
国别省市:84
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