计算机及其外部设备的防信息泄漏技术

Technology of information leakage prevention of computer and peripheral equipment

计算机中的电磁泄漏严重威胁系统的安全，必须采取有效的防泄漏措施。概要地说明了计算机中信息的泄漏方式，分析ＴＥＭＰＥＳＴ技术研究的内容，探讨了计算机中利用噪声干扰源、采用屏蔽技术、“红”／“黑”隔离技术、滤波技术和布线与元器件选择等防泄漏技术，以及键盘、软盘驱动器、ＣＲＴ显示器和打印机等外部设备的防泄漏技术，探讨了发展我国ＴＥＭＰＥＳＴ技术的５项措施。

The electromagnetism leakage of computer is a great threaten to system security. It must implement some ways to prevent the electromagnetism leakage of it. It proposals the ways of information leakage in computer system and analyzes the content of TEMPEST technology and introduces the ways to prevent electromagnetism leakage.The ways are as the following :noise interruption;shielding;'red'/'black' line separation ;wave filter;bus line configuration and parts selection;the ways to prevent of electromagnetism leakage for peripheral equipment such as keyboard, disk driver, CRT monitor and printer. And finally, it discusses the 5 ways to develop Tempest technology in China.