In this document we will see how we can associate the digital certificates of the DNIe with SmartID (Electronic ID card) with the user accounts in our Active Directory, It is ideal for authenticating our employees without a username and password, of course, we can later associate it with the rest of the services we need, if we have access via the web, Citrix… we'd just need a card reader on each piece of equipment and you're good to go, It could even be used to put a device at the front door in the office to validate physical entry, Time Management… all through smart card-based authentication.