The hardware of the system is composed by center server ( PC ), handheld terminal and wireless network access point ( wireless router ). They provide the basic platform for the system. 系统硬件包括服务中心服务器(PC)、手持无线终端、无线网络接入点(WNAP)AP(无线路由器)等,它们为无线点餐系统提供基本的设备支持。
In wireless network structure, Access Point ( AP ) has its own important function in wireless security defence. 无线网络中,无线接入点AP作为网络第一层安全防护起着举足轻重的作用,通过对AP的安全设计,可以进一步提高无线网络的安全性。
While in a wireless network, the access point through which a mobile terminal access to the ATM network is unknown before a connection, moreover, the access point may change during the connection. 在无线网络中,移动用户的接入点在连接建立前是未知的,并且在连接建立后仍有可能发生变化。
As a result, the general platforms take a long operating time to realize the authentication process based on public key algorithm especially small wireless devices such as network Access Point. 于是一般的运算平台尤其是小型的无线设备如网络接入点(Accesspoint)就需要较长的运算时间来实现基于公钥密码的安全认证过程。
Wireless local area network consists of wireless stations, wireless access point and computers. 无线局域网由无线工作站、无线接入点、计算机及相关设备组成。