WCF serviceAuthorizationManager

ServiceAuthorizationManager can be used as custom authentication mechanism for WCF operations. So we can configure this in behavior tag

<behavior name="Behavior">
      <serviceAuthorization serviceAuthorizationManagerType="ClassThatImplementsServiceAuthorizationManager, Assembly" />
</behavior>

This is can code thru code like below

host = new WebServiceHost(typeof(Rest), address.Uri);
host.Authorization.ServiceAuthorizationManager=ClassThatImplementsServiceAuthorizationManager;