基于嵌入式802.1x协议的多元素绑定技术

Research on Binding of Multi-elements Based on Embedded System with 802.1x Protocol

嵌入式系统连接的设备数量较多,如果采用传统的用户名加密码的认证方式,存在地址被盗用,非法设备接入和一个帐号多人使用等问题。由于802.1x协议实现简单、易于移植并提供了基于端口的认证方式,同时嵌入式系统所连设备的位置相对固定,在此基础上本文提出了基于802.1x协议的多元素绑定技术的解决方案。在原802.1x协议的认证基础上,对接入设备的MAC(Media Access Con-trol)地址、CAR(Committed Access Rate)参数和端口号等信息绑定后进行统一验证。通过实验证明系统的安全性得到了进一步提高,而且认证效率较高。

Because the number of the devices connected to the embedded system is vastness, if the traditional technique of user name with password authentication is adopted, there will be a lot of problems, such as the embezzlement of address, illegal connection of devices and the share of the same account by different users and so on. The 802. 1x protocol can be realized simply and transplanted easily, and it can also provide a method based on port authentication. The positions of the devices connected to the embedded system are immobility. A technique of binding multi-elements based on the 802.1x pr dr otocol is then given,in which the uniform information validation is made together with the MAC adess,the CAR parameter and the port number. With this technique, the safety and the efficiency of e embedded system are improved evidently in the experiment.