Windows Server 2003 and Windows XP clients cannot obtain certificates from a Windows Server 2008-based certification authority (CA) if the CA is configured to use SHA2 256 or higher encryption

On a Windows Server 2003-based or Windows XP-based computer, you cannot obtain certificates from a Windows Server 2008-based certification authority (CA). This issue occurs if the CA is configured to use SHA2 256 encryption or higher encryption (SHA2 384 or SHA2 512).

In this case, you receive the following event for the certificate autoenrollment operation:

Event Type: Error
Event Source: AutoEnrollment
Event Category: None
Event ID: 13
Description: Automatic certificate enrollment for local system failed to enroll for one Computer2008 certificate (0x80092009). Cannot find the requested object.

When you manually request a certificate by using the Certificates Microsoft Management Console (MMC), you receive the following error message:

Hotfix information for Windows Server 2003

A 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: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, the computer must have Windows Server 2003 Service Pack 2 (SP2) installed.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

File information

The 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 Server 2003 SP2, x86-based versions

Windows Server 2003 SP2, Itanium-based versions

Windows Server 2003 SP2 and Windows XP SP2, x64-based versions

Hotfix information for Windows XP

A 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.

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, submit a request to 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: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix, the computer must have Windows XP Service Pack 3 (SP3) installed.

Restart requirement

You have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

File information

The 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 XP SP3, x86-based versions

To work around the issue, you have to reinstall the Windows Server 2008-based CA and configure it to use SHA1 encryption.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Changes in Windows XP SP3

Windows XP SP3 implements and supports the SHA2 hashing algorithms (SHA256, SHA384, and SHA512) in the X.509 certificate validation. The changes in the certificate validation are meant to enable the scenario of the SSL/TLS authentication. Other scenarios that involve certificate validation may not work if you use certificates that are secured by using the SHA2 algorithms if the protocols and the applications do not support the SHA2 hashing algorithms. For example, the S/MIME signed e-mail verification and the Authenticode signature verification do not support the SHA2 hashing algorithms on a computer that is running Windows XP SP3.

For more information about the changes in Windows XP SP3, visit the following Microsoft Web site: For more information, click the following article number to view the article in the Microsoft Knowledge Base: