The privacyIDEA Credential Provider is a tool to improve the logon security of your Windows Desktops, Servers and Windows Terminal Servers. It is used to add a second factor for authentication, when logging into your Windows system.
The privacyIDEA Credential Provider does this by communicating with the privacyIDEA Authentication System . The privacyIDEA Authentication System can manage many different kind of second factors for the domain users. Ranging from classical OTP tokens, one time codes via SMS, Smartphone Apps to the Yubikey.
Users need to authenticate with their windows password and additionally with their token as second factor.