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I have a remote wcf service, I connect it by WSHttpBinding. If I use the empty service constructor which mean it will take all the configurations from the app.config , everything is ok, (I mean MyService s = new MyService()). Now I want to configure the wcf programmatically . it's simple till I arrive to the authentication issue , it was so hard to do that . Here is the app.config which I use , you can see there my security configurations . 

<system.serviceModel> <bindings> <wsHttpBinding> <binding name="SecuredEndPoint" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="UserName" negotiateServiceCredential="true" algorithmSuite="Default" /> </security> </binding> </wsHttpBinding> </bindings> <client> <endpoint address="http://MyWcfService.svc" binding="wsHttpBinding" bindingConfiguration="SecuredEndPoint" contract="ServiceReference1.IMyService" name="SecuredEndPoint"> <identity> <certificate encodedValue="*******************************************************************" /> </identity> </endpoint> </client> </system.serviceModel>
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I have done this, you might have to modify your code for security mode you have in config

public virtual ChannelFactory<T> Proxy<T>(string address) { //Validate Address if (string.IsNullOrEmpty(address)) throw new ArgumentNullException("Address can not be null or empty."); //Address EndpointAddress endpointAddress = new EndpointAddress(address); //Binding WSHttpBinding wsHttpBinding = new WSHttpBinding(SecurityMode.None, false); wsHttpBinding.OpenTimeout = wsHttpBinding.CloseTimeout = new TimeSpan(0, 1, 0); wsHttpBinding.ReceiveTimeout = wsHttpBinding.SendTimeout = new TimeSpan(0, 10, 0); wsHttpBinding.MaxReceivedMessageSize = wsHttpBinding.MaxBufferPoolSize = 2147483647; wsHttpBinding.BypassProxyOnLocal = wsHttpBinding.AllowCookies = wsHttpBinding.TransactionFlow = false; wsHttpBinding.MessageEncoding = WSMessageEncoding.Text; wsHttpBinding.TextEncoding = Encoding.UTF8; wsHttpBinding.UseDefaultWebProxy = true; wsHttpBinding.HostNameComparisonMode = HostNameComparisonMode.StrongWildcard; wsHttpBinding.ReaderQuotas = new XmlDictionaryReaderQuotas(); //ReaderQuotas, setting to Max wsHttpBinding.ReaderQuotas.MaxArrayLength = wsHttpBinding.ReaderQuotas.MaxBytesPerRead = 2147483647; wsHttpBinding.ReaderQuotas.MaxStringContentLength = wsHttpBinding.ReaderQuotas.MaxNameTableCharCount = 2147483647; wsHttpBinding.ReaderQuotas.MaxDepth = 2147483647; //Create the Proxy ChannelFactory<T> proxy = new ChannelFactory<T>(wsHttpBinding, endpointAddress); //Sets the MaxItemsInObjectGraph, so that client can receive large objects foreach (var operation in proxy.Endpoint.Contract.Operations) { DataContractSerializerOperationBehavior operationBehavior = operation.Behaviors.Find<DataContractSerializerOperationBehavior>(); //If DataContractSerializerOperationBehavior is not present in the Behavior, then add if (operationBehavior == null) { operationBehavior = new DataContractSerializerOperationBehavior(operation); operation.Behaviors.Add(operationBehavior); } //IMPORTANT: As 'operationBehavior' is a reference, changing anything here will automatically update the value in list, so no need to add this behavior to behaviorlist operationBehavior.MaxItemsInObjectGraph = 2147483647; } return proxy; }

On this proxy object you will need to do .CreateChannel() to use it.

Hope this helps.

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But where I can see the certificate encodedValue issue in the identity code , this was really my big problem .
Try this EndpointIdentity identity = EndpointIdentity.CreateX509CertificateIdentity(new System.Security.Cryptography.X509Certificates.X509Certificate2(Encoding.UTF8.GetBytes("Your Certificate")); and put give this identity to EndpointAddress constructor. You will have to modify Security Mode.
I got : Client cannot determine the Service Principal Name based on the identity in the target address MyService.svc/securedendpoint' for the purpose of SspiNegotiation/Kerberos. The target address identity must be a UPN identity (like acmedomain\alice) or SPN identity (like host/bobs-machine). My code to set the idenetiy is : var encodedValue = "****Y"; EndpointIdentity identity = EndpointIdentity.CreateX509CertificateIdentity(new System.Security.Cryptography.X509Certificates.X509Certificate2(Encoding.UTF8.GetBytes(encodedValue)));
did you know, that there's eg TimeSpan.FromSeconds(int seconds) - instead of doing sth like new TimeSpan(0, 0, 0, int seconds) :)
Yes. This had written this code almost 2 yrs back. Are you crawling my post ;) I guess I need to start refactoring my code :)
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