基于改进Das协议的无线传感器网络用户认证协议UAPL

针对在无线传感器网络中采用用户认证的方式获取节点数据时，容易出现密码被破译，以及容易遭受多种网络攻击等安全性问题，在改进Das协议的双因素身份验证的基础上，引入了用户与网关、网关与传感器节点之间的互相验证机制以及用户密码变更机制，提出了UAPL协议。UAPL协议具有防止网关节点旁路攻击、伪装攻击等网络攻击的安全验证机制，提供的密码变更防护能防止由于密码泄露而引发的安全问题。实验结果表明，UAPL协议与其他改进Das协议相比具有较高的安全性。

UAPL: Wireless sensor network user authentication based on improved Das protocol

When obtaining node data through user identification in wireless sensor networks, passwords may be cracked and some other security problems such as being prone to network attacks may occur. Concerning these problems and based on the improved Das'protocols of two-factor user authentication, UAPL protocol was proposed after introducing a verification mechanism between users and gateway nodes as well as between gateway nodes and sensor nodes, and a mechanism for changing's password. This protocol had security features that prevented gateway node sideway attacks, masked attacks and other network attacks and its provided capability of password change protection could prevent security problems when passwords were leaked out. The experimental results show UAPL protocol offers much higher security than other improved Das'protocols.