Public security digital certificate USB Key equipment control method and system

The invention provides a public security digital certificate USB Key equipment control method. The method comprises the following steps: a client identifies the insertion of USB Key equipment; the fingerprint authentication command is sent to the USB Key device; the receiving USB Key device performs fingerprint authentication and returns an authentication result to the client; and after the fingerprint authentication succeeds, the client uses the public security digital certificate and the key corresponding to the fingerprint feature template. And the potential safety hazard caused by loss of the equipment or password leakage when the password is input when the user uses the common USB Key equipment is avoided. 本发明提供一种公安数字证书USB Key设备控制方法，客户端识别USB Key设备的插入；将指纹认证命令发送给USB Key设备；接收USB Key设备进行指纹认证将认证结果返回客户端；指纹认证成功后，客户端使用与指纹特征模板对应的公安数字证书和密钥。免除了因用户在使用普通USB Key设备时，设备遗失或在输入口令时口令泄露带来的安全隐患。