Comment puis-je définir ClientCredentials?

Je suis en train de consommer un service WCF:

La configuration du service est:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<system.serviceModel>
<bindings>
<netNamedPipeBinding>
<binding name="netNamedPipeEndpoint" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288"
maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport protectionLevel="EncryptAndSign" />
</security>
</binding>
</netNamedPipeBinding>
<netTcpBinding>
<binding name="netTcpEndpoint" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" transactionFlow="false"
transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" listenBacklog="10"
maxBufferPoolSize="524288" maxBufferSize="65536" maxConnections="10"
maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="None">
<transport clientCredentialType="Windows" protectionLevel="EncryptAndSign" />
<message clientCredentialType="Windows" />
</security>
</binding>
</netTcpBinding>
<wsHttpBinding>
<binding name="wsHttpBindingConfiguration" 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="false" />
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="net.tcp://webapppro-v11/FlightInfoWebService/FlightInfoService.svc"
binding="netTcpBinding" bindingConfiguration="netTcpEndpoint"
contract="FlightInfoService" name="netTcpEndpoint" />
<endpoint address="net.pipe://webapppro-v11/FlightInfoWebService/FlightInfoService.svc"
binding="netNamedPipeBinding" bindingConfiguration="netNamedPipeEndpoint"
contract="FlightInfoService" name="netNamedPipeEndpoint" />
<endpoint address="http://webapppro-v11/FlightInfoWebService/FlightInfoService.svc"
binding="wsHttpBinding" bindingConfiguration="wsHttpBindingConfiguration"
contract="FlightInfoService" name="wsHttpBindingConfiguration" />
</client>
</system.serviceModel>
</configuration>

Quand j'essaie d'appeler le service:

public async void LoadCities()
{
_client = new FlightInfoServiceClient(Maquette_MyAirport_Win8.FlightService.FlightInfoServiceClient.EndpointConfiguration.wsHttpBindingConfiguration, "http://servuucs.fr/FlightInfoWebService/FlightInfoService.svc");
var citiesResponse = await _client.GetAllCitiesAsync(new BaseRequest());
var  myCities = citiesResponse.Cities;
}

Je attraper cette exception:

ERREUR: UnAuthorizedAccess description:Vous n'êtes pas autorisé à accéder à ce service

Comment puis-je configurer mon ClientCredentials?

source d'informationauteur user1428798