Display string when smart card is blocked

This policy setting allows you to manage the displayed message when a smart card is blocked. If you enable this policy setting the specified message will be displayed to the user when the smart card is blocked. Note: The following policy setting must be enabled – Allow Integrated Unblock screen to be displayed at the time of logon. If you disable or do not configure this policy setting the default message will be displayed to the user when the smart card is blocked if the integrated unblock feature is enabled.

Turn on root certificate propagation from smart card

This policy setting allows you to manage the root certificate propagation that occurs when a smart card is inserted. If you enable or do not configure this policy setting then root certificate propagation will occur when you insert your smart card. Note: For this policy setting to work the following policy setting must also be enabled: Turn on certificate propagation from smart card. If you disable this policy setting then root certificates will not be propagated from the smart card.

Configure root certificate clean up

This policy setting allows you to manage the clean up behavior of root certificates. If you enable this policy setting then root certificate cleanup will occur according to the option selected. If you disable or do not configure this setting then root certificate clean up will occur on log off.

Turn on certificate propagation from smart card

This policy setting allows you to manage the certificate propagation that occurs when a smart card is inserted. If you enable or do not configure this policy setting then certificate propagation will occur when you insert your smart card. If you disable this policy setting certificate propagation will not occur and the certificates will not be made available to applications such as Outlook.

Allow time invalid certificates

This policy setting permits those certificates to be displayed for logon that are either expired or not yet valid. Under previous versions of Microsoft Windows certificates were required to contain a valid time and not be expired. The certificate must still be accepted by the domain controller in order to be used. This setting only controls the displaying of the certificate on the client machine. If you enable this policy setting certificates will be listed on the logon screen regardless of whether they have an invalid time or their time validity has expired. If you disable or do not configure this policy setting certificates which are expired or not yet valid will not be listed on the logon screen.

Allow signature keys valid for Logon

This policy setting lets you allow signature key-based certificates to be enumerated and available for logon. If you enable this policy setting then any certificates available on the smart card with a signature only key will be listed on the logon screen. If you disable or do not configure this policy setting any available smart card signature key-based certificates will not be listed on the logon screen.

Force the reading of all certificates from the smart card

This policy setting allows you to manage the reading of all certificates from the smart card for logon. During logon Windows will by default only read the default certificate from the smart card unless it supports retrieval of all certificates in a single call. This setting forces Windows to read all the certificates from the card. This can introduce a significant performance decrease in certain situations. Please contact your smart card vendor to determine if your smart card and associated CSP supports the required behavior. If you enable this setting then Windows will attempt to read all certificates from the smart card regardless of the feature set of the CSP. If you disable or do not configure this setting Windows will only attempt to read the default certificate from those cards that do not support retrieval of all certificates in a single call. Certificates other than the default will not be available for logon.

Filter duplicate logon certificates

This policy settings lets you configure if all your valid logon certificates are displayed. During the certificate renewal period a user can have multiple valid logon certificates issued from the same certificate template. This can cause confusion as to which certificate to select for logon. The common case for this behavior is when a certificate is renewed and the old one has not yet expired. Two certificates are determined to be the same if they are issued from the same template with the same major version and they are for the same user (determined by their UPN). If there are two or more of the “same” certificate on a smart card and this policy is enabled then the certificate that is used for logon on Windows 2000 Windows XP and Windows 2003 Server will be shown otherwise the the certificate with the expiration time furthest in the future will be shown. Note: This setting will be applied after the following policy: “Allow time invalid certificates”If you enable or do not configure this policy setting filtering will take place. If you disable this policy setting no filtering will take place.

Allow Integrated Unblock screen to be displayed at the time of logon

This policy setting lets you determine whether the integrated unblock feature will be available in the logon User Interface (UI). In order to use the integrated unblock feature your smart card must support this feature. Please check with your hardware manufacturer to see if your smart card supports this feature. If you enable this policy setting the integrated unblock feature will be available. If you disable or do not configure this policy setting then the integrated unblock feature will not be available.

Allow certificates with no extended key usage certificate attribute

This policy setting lets you allow certificates without an Extended Key Usage (EKU) set to be used for logon. In versions of Windows prior to Windows Vista smart card certificates that are used for logon require an enhanced key usage (EKU) extension with a smart card logon object identifier. This policy setting can be used to modify that restriction. If you enable this policy setting certificates with the following attributes can also be used to log on with a smart card:- Certificates with no EKU- Certificates with an All Purpose EKU- Certificates with a Client Authentication EKUIf you disable or do not configure this policy setting only certificates that contain the smart card logon object identifier can be used to log on with a smart card.