System.ServiceModel 4.0.0.0 System.Configuration.ConfigurationElement To be added. Represent a configuration element that specifies the sender's requirement for an X.509 certificate, which is used by the recipient when replying to the sender. This class cannot be inherited. Constructor 4.0.0.0 To be added. Initializes a new instance of the class. Property 4.0.0.0 System.Configuration.ConfigurationProperty("authentication", Options=System.Configuration.ConfigurationPropertyOptions.None) System.ServiceModel.Configuration.X509ClientCertificateAuthenticationElement To be added. To be added. Gets the client certificate used for authentication. Property 4.0.0.0 System.Configuration.ConfigurationProperty("certificate", Options=System.Configuration.ConfigurationPropertyOptions.None) System.ServiceModel.Configuration.X509ClientCertificateCredentialsElement To be added. To be added. Gets the certificate that is used to represent the service when communicating back to the client. Property 4.0.0.0 System.Configuration.ConfigurationPropertyCollection To be added. To be added. To be added.