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#Smart card toolset pro externtions windows#
This causes the context acquired in Step 3 to be released.Ībout Certificate support for compatibilityĪlthough versions of Windows earlier than Windows Vista include support for smart cards, the types of certificates that smart cards can contain are limited. LogonUI.exe packages the information and sends it to Lsass.exe to process the sign-in attempt. The process then chooses a certificate, and the PIN is entered. You can override many of them by using Group Policy settings. Note These requirements are the same as those in Windows Server 2003, but they are performed before the user enters the PIN. The certificate must have the smart card logon EKU.Īny certificate that meets these requirements is displayed to the user with the certificate's UPN (or e-mail address or subject, depending on the presence of the certificate extensions). The certificate must have the digital signature key usage. The certificate must have a valid user principal name (UPN). The certificate must not be in the AT_SIGNATURE part of a container. The certificate must be valid, based on the computer system clock (not expired or valid with a future date). The certificate is added to an in-memory certificate store.įor each certificate in the certificate store from Step 5 or Step 7, the following checks are performed: The certificate is then queried from the key context by using KP_CERTIFICATE. If the operation in Step 5 fails, the default container context from Step 3 is queried for the AT_KEYEXCHANGE key. If the operation is successful, the name of a certificate store is returned, and the program flow skips to Step 8. For more information, see Smart Card Architecture. Using the context acquired in Step 3, the CSP is queried for the PP_USER_CERTSTORE parameter (added in Windows Vista). The name of the container is retrieved by using the PP_CONTAINER parameter with CryptGetProvParam. If a failure occurs, the smart card will be unusable for smart card sign-in. The format is \\.\\ĬryptAcquireContext is called to retrieve a context to the default container.
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The smart card resource manager database searches for the smart card's cryptographic service provider (CSP).Ī qualified container name is constructed by using the smart card reader name, and it is passed to the CSP. Note Unless otherwise mentioned, all operations are performed silently (CRYPT_SILENT is passed to CryptAcquireContext).
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When a smart card is inserted, the following steps are performed.
#Smart card toolset pro externtions professional#
This topic for the IT professional and smart card developers describes how certificates are managed and used for smart card sign-in. Applies To: Windows 10, Windows 11, Windows Server 2016 and above