The objective in this step is to copy all certificates that you want to use for logon to a location accessible to the server such as a local or network drive. Make sure that use .cer files.
Note: This assumes that the certificates already exists.
Next, make the determination which users you want to allow to logon on. Copy their .cer files to the server (to a local or network drive).
If you do not have certificate available please see "Creating a User Certificates"
If you do not have .cer files to copy then you need to Export them from the certificate..
If you need to create .PFX file for use on the client. Details