基于密码数据安全防护的机键接口电路研究

The research about the interface circuit of the computer and keyboard base on Security of the Password

本文通过阐述LED数码管显示器接口技术、行列式键盘及其接口技术,实现在密码键盘上产生按一定顺序变化的随机数(LED显示),对密码起到保护作用。

This text, through explaining the interface technology of LED number display, to realize produce the random number on the password keyboard. Thus can play a role in protecting to the password.