oAuth 2.0 and C# WCF Service - wcf

Question

I want to put some security in my C# WCF Rest Service and I was following this tutorial:
http://www.codeproject.com/Tips/372422/Secure-WCF-RESTful-service-using-OAUTH
How can I upgrade these informations to use oAuth 2.0?
I downloaded the DotNetOpenAuth and installed it to my simple project.
This is my IRestService.cs:
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Web;
using System.Text;
namespace WCFoAuth2
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IRestService" in both code and config file together.
[ServiceContract]
public interface IRestService
{
[OperationContract]
[WebInvoke(Method="GET", ResponseFormat=WebMessageFormat.Xml,BodyStyle=WebMessageBodyStyle.Wrapped,UriTemplate="xml/ {id}")]
string DoWork(string id);
}
}
And my RestService.svc:
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;
namespace WCFoAuth2
{
// NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "RestService" in code, svc and config file together.
// NOTE: In order to launch WCF Test Client for testing this service, please select RestService.svc or RestService.svc.cs at the Solution Explorer and start debugging.
public class RestService : IRestService
{
public string DoWork(string id)
{
return id;
}
}
}
And the Web.config:
<?xml version="1.0"?>
<configuration>
<appSettings/>
<connectionStrings/>
<system.web>
<compilation debug="true" targetFramework="4.0"/>
<authentication mode="Windows"/>
<pages controlRenderingCompatibilityVersion="3.5" clientIDMode="AutoID"/>
</system.web>
<system.webServer>
<directoryBrowse enabled="true"/>
</system.webServer>
<system.serviceModel>
<services>
<service behaviorConfiguration="WCFoAuth2.Service1Behavior" name="WCFoAuth2.Service1">
<endpoint address="" binding="webHttpBinding" contract="WCFoAuth2.IService1" behaviorConfiguration="web">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="webHttpBinding" contract="IMetadataExchange"/>
</service>
<service behaviorConfiguration="WCFoAuth2.RestServiceBehavior" name="WCFoAuth2.RestService">
<endpoint address="" binding="webHttpBinding" contract="WCFoAuth2.IRestService" behaviorConfiguration="web">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="webHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="WCFoAuth2.Service1Behavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
<behavior name="WCFoAuth2.RestServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="web">
<webHttp/>
</behavior>
</endpointBehaviors>
</behaviors>
</system.serviceModel>
</configuration>
Tks.