基于组件的混合模式考试系统通讯控制设计

The communication control system design of network examination system of mixed modes based on component

出于考试系统安全性以及对考生端的有序控制需要,建立了混合模式考试系统设计模型。提出了实现网络考试控制的设计方法。主要思路是设计了具有Web访问、解析和通讯控制功能的考生浏览器端与考试监控端并建立控制流通道实现考试控制。分析了它们之间的通讯控制功能和通讯过程。设计了基于文字消息通讯的对称加密算法。在100 M局域网实验表明,有效解决了客户端存在的安全控制和屏蔽等问题。最后给出了实现方法。

For the examination system security and orderly control,the mixed-mode examination system design model and communication control system design between client and examination monitor was proposed.The examination control based on the control stream of client browser and examination monitor was achieved.The client browser with the Web access,resolution and control features were designed by WebBrowser component and TCP component.The communication process,control method and symmetric encryption algorithm were analyzed.Problems of client browser shielding and security control were achieved.