Abstract: In order to assure the information security of financial ATM, this paper studies and analyzes the keyboard and mouse drivers in Windows operating system, and based on filter driver, designs and implements keyboard and mouse insertion authorization system. The authorization system can detect the insertion of USB or PS/2 interfaced keyboard and mouse into the computer, and keeps the new device disabled before authorized. The final tests demonstrate that the system can be deployed and run on Windows XP and Windows 7 stably and efficiently.

Key words: filter drive, insertion detection, input interception, authorization, round query

摘要： 为保证ATM的信息安全，分析Windows上键盘和鼠标设备驱动的工作原理，设计并实现基于过滤驱动的键盘鼠标插入事件授权系统。该授权系统能准确捕捉USB和PS/2接口的键盘鼠标设备的插拔事件，保证新插入的设备在系统授权前处于禁用状态。测试结果表明，系统能在Windows XP和Windows 7操作系统上高效稳定地运行。

关键词: 过滤驱动, 插入检测, 输入拦截, 授权, 轮询

CLC Number: 

• TP309