Microsoft KB Archive/888999

= FIX: You may receive false results when you use the CheckSignature method of the SignedXml class in the .NET Framework =

Article ID: 888999

Article Last Modified on 4/7/2006

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APPLIES TO


 * Microsoft .NET Framework 1.1

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SYMPTOMS
When you use the CheckSignature method of the SignedXml class, the method may return false results. However, the provided signature is valid. This problem occurs if the signed XML contains namespace attributes on elements other than the root element.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft .NET Framework 1.1 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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 tool in Control Panel.

Note You must install the .NET Framework 1.1 Service Pack 1 (SP1) before you install this hotfix.   Date         Time   Version        Size    File name 02-Nov-2004 21:31  1.1.4322.2045  77,824  System.security.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbqfe kbhotfixserver kbbug kbfix KB888999

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