摘要
在复杂、无人值守的无线传感器网络环境中,传感器节点容易遭受攻击者对节点的俘获攻击。基于对称多项式的随机密钥预分配方案为节点的通信提供了一种安全机制,但是此方案存在t门限性质的问题。为了更好地解决这一问题,提高节点的抗俘获能力,通过一种安全的密钥协商方式,使用单向hash函数对多项式的值进行处理,并设计一种完善的有新节点加入时的密钥分配方法。分析表明,改进后的方案在原方案安全机制的基础上,能更有效地抵御攻击者的合谋攻击。
In a complex and unmanned Wireless Sensor Network （WSN） environment, the sensor nodes are vulnerable to attackers in the node capture attack. Based on symmetric polynomials of random key pre-distributlun scheme, a safety mechanism was provided for the nodes communication, but this scheme has the issue of t threshold nature. In order to solve this issue, and to improve the anti-trapping capacity of the node, a secure key negotiation seherne was proposed using one-way function to process the value of the polynomial and a sound key distribution method was designed when a new node was added to the wireless sensor network. Analysis shows that in the base of security mechanisms of original scheme, the improved scheme can withstand conspiracy attack from attackers more effectively.
出处
《计算机应用》
CSCD
北大核心
2010年第A01期112-116,共5页
journal of Computer Applications
关键词
异构传感器网络
对称多项式
门限
单向函数
分簇
heterogeneous sensor network
symmetric polynomial
threshold
one-way function
clustering
