目的:设计一种针对无源rfId标签的身份认证方法。方法:考虑到无源标签的弱计算能力,使用简单高效的哈希函数进行运算比较。结果:实现了阅读器与rfId标签之间的双向身份认证,从而保障了物流运输的安全。结论:该方法可以有效地增强战时环境下军事物资rfId标签的安全性。Objective To design an authentication method for passive RFID tag.Methods Taking the weak computing ability of passive tags into account,the simple and efficient Hash function was used for computing and comparing.Results Two-way authentication between the reader and RFID tags was realized,which could protect the safety of our military logistics.Conclusion This method can effectively improve the security of the RFID tags of military supplies during the war.南京军区重点课题(08Z021);南京军区“十一五”计划课题项目(06MA99