【摘要】 为进一步提高传感器网络节点之间建立直接密钥的概率,降低间接密钥建立过程的通信开销,提高密钥的安全性能,提出了一种新的基于对偶编码的随机密钥建立算法。在新算法中,首先,采用随机数字对节点进行编码;然后,节点之间通过不同位进行第一次通信,并经过三次握手确定最终的密钥参数。理论分析和仿真实验结果表明,与传统的对偶密钥建立算法相比,新算法具有更高的密钥建立概率、密钥安全性能和更低的通信开销。更多还原

【Abstract】 In order to further enhance the probability of direct key establishment between nodes in wireless sensor networks,reduce the communication cost of indirect key establishment,and improve the safety performance,a new algorithm for establishing random key based on pairwise coding was proposed.In this new algorithm,first,the nodes were coded with random digit.Then,the first time communication was set up between any two nodes,and the last key’s parameter was ensured by thrice handshake.The theoretical analysis and experimental result show that,compared to the traditional algorithm of pairwise key establishment,the new algorithm has higher probability of direct key establishment and key safety,and lower communication costs.更多还原