Represents a key identifier clause that identifies a X509SecurityToken security token using the X.509 certificate's subject key identifier extension.
Assembly: System.IdentityModel (in System.IdentityModel.dll)
Typically, the 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 and unattached references are 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 subject key identifier extension. The GetX509SubjectKeyIdentifier method returns the subject key identifier extension.
Windows Communication Foundation (WCF) supports the following types of security token references for X509SecurityToken security tokens.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.