无线传感器网络广播认证存在DOS攻击问题,攻击者可以通过伪造大量的广播包,耗费接收节点大量能量进行数字签名验证,从而使目标节点致命.针对这种情况,提出一种无线传感器网络中基于节点ID验证的防御DOS攻击策略,充分利用节点ID验证,先于复杂的数字签名验证,有效地防御DOS攻击,且避免了对同一数据包的重复数字签名验证.从仿真实验结果看出,该策略比现有的两个方案具有较强的攻击防御性和较低的时耗和能耗. In the wireless sensor network broadcast authentication, there is a DOS attack problem. An attacker can fake a large number of broadcast packets and consume a large amount of energy of the receiving node to perform digital signature verification, so as to make the target node fatal. In this case, a wireless sensor network node ID verification defense DOS attack strategy, make full use of node ID verification, prior to the complex digital signature verification, effectively defend against DOS attacks, and to avoid duplication of digital signature verification of the same data packet from the simulation results show that the strategy Than the existing two programs have strong attack defensive and lower time consumption and energy consumption.