You can load a digital certificate >
Manage My Certificates
The correct ROS digital certificate must be loaded in the browser to login.
Click on the Manage My Certificates link to locate the certificate you saved on your device and load it.
Cannot find certificate or forgot password >
Reset Login should only be used by ROS Administrators if :
certificate is expired or lost
you forgot your password
(You can only change a ROS password by downloading a new certificate)
Digital certificate explained.
See How it Works