Digipass Authentication for Windows Logonuses secure connections to OneSpan Authentication Server Appliance using the Secure Sockets Layer (SSL) protocol. It can be configured to validate the server certificate when establishing a connection. Validation requires the server certificate to be registered in the certificate store on the client workstation.
For more information about using and exporting that certificate, refer to the OneSpan Authentication Server Appliance Administrator Guide, Section "Digipass Authentication for Windows Logon".