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X509KeyIdentifierClauseType Enumeration

X509KeyIdentifierClauseType Enumeration

An enumeration listing the possible types of X.509 key identifier clauses.

Namespace:  System.ServiceModel.Security.Tokens
Assembly:  System.ServiceModel (in System.ServiceModel.dll)

public enum X509KeyIdentifierClauseType

Member nameDescription
AnySubjectKeyIdentifier is used if present in the X.509 certificate, otherwise IssuerSerial is used.
IssuerSerialThe IssuerSerial reference is used: the issuer identifier plus a serial number that is unique for an issuer.
RawDataKeyIdentifierThe reference contains the raw data for the entire X.509 certificate.
SubjectKeyIdentifierReference is based on the subject key identifier extension of an X.509 certificate (not all certificates have one, it is an optional property).
ThumbprintThe X.509 Thumbprint is used.

The following code shows how to set the X509ReferenceStyle property to a member of this enumeration.

AsymmetricSecurityBindingElement abe =


X509SecurityTokenParameters istp =
   abe.InitiatorTokenParameters as X509SecurityTokenParameters;
if (istp != null)
    istp.X509ReferenceStyle =

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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