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SecurityBindingElement.CreateMutualCertificateBindingElement Method (MessageSecurityVersion)

Creates an asymmetric security binding element that is configured to require certificate-based client authentication as well as certificate-based server authentication.

Namespace:  System.ServiceModel.Channels
Assembly:  System.ServiceModel (in System.ServiceModel.dll)
public static SecurityBindingElement CreateMutualCertificateBindingElement(
	MessageSecurityVersion version


Type: System.ServiceModel.MessageSecurityVersion

The message security version.


version is null.

If the version is WSSecurity10, then the binding element is configured so that the client request is signed by its certificate and encrypted with the server certificate.

If the version is WSSecurity11, then the binding element is configured so that a new random symmetric key (encrypted for the server) is generated for every request by the client and is used to protect the request as well as the response from the server. The client's certificate is used as an endorsing supporting token on the request.


Once a SecurityBindingElement object is created by calling this method, the MessageSecurityVersion property is immutable. Calling set on it does not change it.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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