Assembly: System.IdentityModel (in system.identitymodel.dll)
Typically, the X509ThumbprintKeyIdentifierClause does not need to be used, other than when a custom security token service is created. When a security token service returns a security token, the issued security token contains references to attached and unattached security tokens. Attached references refer to security tokens that are contained within the security header of a SOAP message token and unattached references reference security tokens that are not included within the security header of a SOAP message. These references typically affirm the authenticity of the issued security token. Use the X509ThumbprintKeyIdentifierClause class to reference a X509SecurityToken security token using the X.509 certificate's thumbprint. The GetX509Thumbprint method returns the thumbprint.
Windows Communication Foundation (WCF) supports the following types of security token references for X509SecurityToken security tokens.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.