【摘要】 目前 ,绝大多数计算机系统的安全性都是通过口令保护机制实现的 ,但口令易被盗用 ,存在着安全隐患。为此本文提出了将传统的口令认证机制同用户输入口令时生成的击键特征相结合进行身份认证 ,以此来加强传统的口令认证方式的安全性。同时建立了 BP神经网络对此进行实验 ,并给出了实验结果。更多还原

【Abstract】 Nowadays,the security of most computers is based on password. The drawb ack of the password is that it is easily given away. Therefore, we present an ap proach to improving the security of password. In our approach, the user’s typing patterns are combined with the user’s password to generate a hardened password. Also, a BP neural network is built for the experiment.更多还原