自组织Ad Hoc网络的信任路径研究

信任机制是Ad Hoc网络安全通信的前提。针对AdHoc网络自组织信任模型，给出信任和推荐信任的定义，设计由最大入度算法和基于证据理论度量信任的评估算法共同构成的一种最优信任路径选择算法．模拟结果和性能分析表明在小规模的Ad Hoc网络中，该算法具有良好的复杂度O（n），信任路径经过恶意节点的比率下降3％．5％，丢包率也降低4％～10％。事实证明该算法在小规模Ad Hoc网络中具有良好性能。

Study on trust path of self-organized Ad Hoc networks

Trust mechanism is the premise of Ad Hoc network security communication.According to self-organized publickey management for mobile Ad Hoc, the definition of trust and recommendation trust are given.The optimal certificate path algorithm is designed,which is composed of the maximum in-degree algorithm and the trust evaluation algorithm that is based on D-S evidence theory.The simulation results show that the time complexity of the algorithm O（n）is good,the rate of passed malicious nodes is reduced by 3%-5% in small scale Ad Hoc networksand package loss rate is reduced by 4%-10%.The fact proves the algorithm has excellent performance in small scale Ad Hoc networks.