FIX: A hotfix is available that makes the SecurityMessageProperty.OutgoingSupportingToken property public in the Microsoft .NET Framework 3.5 Service Pack 1

INTRODUCTION

In the Microsoft .NET Framework 3.5, a random RSA key is created for each issued token request to authenticate Windows Communication Foundation (WCF) services. However, some applications do not require a unique RSA key per issued token. Instead, these applications require a unique RSA key per application domain. Additionally, every time that an RSA key is generated, the performance of the application is adversely affected. This hotfix lets the same RSA key be reused. This provides a marginal improvement in performance.

This hotfix makes the SecurityMessageProperty.OutgoingSupportingToken property public in the Microsoft .NET Framework 3.5 Service Pack 1 (SP1). This lets you use a shared RSA key in an application domain. For example, this lets a Web page that consumes multiple WCF services safely use the same RSA key. Web pages that consume multiple WCF services are common in SharePoint services.

Resolution

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 version of the Microsoft .NET Framework that contains this hotfix.

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

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

To download this hotfix from the MSDN Code Gallery, visit the following Microsoft Web site:

http://code.msdn.microsoft.com/KB976394Note The MSDN Code Gallery displays the languages for which the hotfix is available. If you do not see your language listed, it is because the Code Gallery resource page is not available for that language.

Note Alternatively, you can download this hotfix rollup from the following Microsoft Connect Web site:

http://connect.microsoft.com/VisualStudio/Downloads/DownloadDetails.aspx?DownloadID=23807The 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.

x86 versions of Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2

File name

File version

File size

Date

Time

Smdiagnostics.dll

3.0.4506.4429

110,592

02-Nov- 2009

07:54

Servicemonikersupport.dll

3.0.4506.4429

17,240

02-Nov- 2009

07:54

System.identitymodel.dll

3.0.4506.4429

434,176

02-Nov- 2009

07:53

System.runtime.serialization.dll

3.0.4506.4429

970,752

02-Nov- 2009

07:54

System.servicemodel.dll

3.0.4506.4429

5,943,296

02-Nov-2009

07:54

x64 versions of Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2

File name

File version

File size

Date

Time

Platform

Servicemonikersupport.dll

3.0.4506.4429

19,304

02-Nov- 2009

07:53

x64

Smdiagnostics.dll

3.0.4506.4429

94,208

02-Nov- 2009

07:53

x64

System.identitymodel.dll

3.0.4506.4429

393,216

02-Nov- 2009

07:53

x64

System.runtime.serialization.dll

3.0.4506.4429

847,872

02-Nov- 2009

07:53

x64

System.servicemodel.dll

3.0.4506.4429

5,279,744

02-Nov- 2009

07:53

x64

Itanium versions of Windows Vista Service Pack 2 and Windows Server 2008 Service Pack 2

File name

File version

File size

Date

Time

Platform

Servicemonikersupport.dll

3.0.4506.4429

33,624

02-Nov- 2009

07:54

IA-64

Smdiagnostics.dll

3.0.4506.4429

94,208

02-Nov- 2009

07:54

IA-64

System.identitymodel.dll

3.0.4506.4429

393,216

02-Nov- 2009

07:53

IA-64

System.runtime.serialization.dll

3.0.4506.4429

847,872

02-Nov- 2009

07:53

IA-64

System.servicemodel.dll

3.0.4506.4429

5,279,744

02-Nov- 2009

07:53

IA-64

Prerequisites

You must have .NET Framework 3.5 SP1 installed to apply this hotfix.

Restart information

You do not have to restart the computer after you install this hotfix if there is no .NET Framework instance currently being used.

Status

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

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