Article ID: 935576 - View products that this article applies to.
Consider the following scenario:
Note PKINIT is an Internet Engineering Task Force (IETF) Internet Draft for "Public Key Cryptography for Initial Authentication in Kerberos." Windows Vista uses the PKINIT protocol when you use a smart card to perform an interactive logon.
This problem occurs because the Kerberos.dll file does not try to obtain the fully qualified domain name (FQDN) of the user account from the smart card.
Service pack informationTo resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/935791/ )How to obtain the latest Windows Vista service pack
Hotfix informationA supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
PrerequisitesNo prerequisites are required.
Restart requirementYou have to restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other previously released hotfixes.
Registry informationTo use one of the hotfixes in this package, you do not have to make any changes to the registry.
File informationThe English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista, 32-bit versions
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Windows Vista, 64-bit versions
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To work around this problem, use an implicit user principal name (UPN) in the smart card certificate.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.
An implicit UPN uses the following form:
user_name@DNS_domain_name.comIn an implicit UPN, the UPN suffix is an actual domain name.
An explicit UPN uses the following form:
name@suffixIn an explicit UPN, both the user account name and the UPN suffix are explicitly defined by the domain administrator. Therefore, the UPN suffix part may not be an actual domain name.
For more information about user name formats, visit the following Microsoft Web site:
http://msdn2.microsoft.com/en-us/library/aa380525.aspxFor more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/LN/ )Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 935576 - Last Review: October 8, 2011 - Revision: 4.0
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