gistfile1.txt

EndpointAddress endpoint = new EndpointAddress("endpoint");
                CustomBinding binding = new CustomBinding();
                var security = TransportSecurityBindingElement.CreateUserNameOverTransportBindingElement();
                security.IncludeTimestamp = false;
                security.DefaultAlgorithmSuite = SecurityAlgorithmSuite.Basic256;
                security.MessageSecurityVersion = MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10;

                var encoding = new TextMessageEncodingBindingElement();
                encoding.MessageVersion = MessageVersion.Soap11;

                var transport = new HttpsTransportBindingElement();
                transport.MaxReceivedMessageSize = 20000000;

                binding.Elements.Add(security);
                binding.Elements.Add(encoding);
                binding.Elements.Add(transport);

                webservice service = new webservice(binding, endpoint);

                cient.ClientCredentials.UserName.UserName = "user";
                cient.ClientCredentials.UserName.Password = "pass";
                cient.ClientCredentials.HttpDigest.ClientCredential.UserName = "user";
                cient.ClientCredentials.HttpDigest.ClientCredential.Password = "pass";