Procedura: usare certificati X.509 separati per la firma e la crittografia

In questo argomento viene illustrato come configurare Windows Communication Foundation per utilizzare certificati diversi per la firma e la crittografia dei messaggi sul client e nel servizio.

Per consentire l'utilizzo di certificati separati per la firma e la crittografia, è necessario creare credenziali personalizzate del client o del servizio (o di entrambi) poiché in WCF non viene fornita alcuna API per impostare più certificati client o del servizio. È inoltre necessario specificare un gestore del token di sicurezza per utilizzare le informazioni di più certificati e creare un provider di token di sicurezza appropriato per l'utilizzo della chiave specificata e la direzione del messaggio.

Nel diagramma seguente vengono illustrate le principali classi utilizzate, le classi da cui ereditano (contrassegnate da una freccia rivolta verso l'alto) e i tipi restituiti di alcuni metodi e proprietà.

• MyClientCredentials è un'implementazione personalizzata di ClientCredentials.

  • Tutte le relative proprietà illustrate nel diagramma restituiscono istanze di X509Certificate2.

  • Il relativo metodo CreateSecurityTokenManager restituisce un'istanza di MyClientCredentialsSecurityTokenManager.

• MyClientCredentialsSecurityTokenManager è un'implementazione personalizzata di ClientCredentialsSecurityTokenManager.

  • Il relativo metodo CreateSecurityTokenProvider restituisce un'istanza di X509SecurityTokenProvider.

Per altre informazioni sulle credenziali personalizzate, vedere Procedura dettagliata: Creazione di credenziali client e servizio personalizzate.

Inoltre, è necessario creare un sistema di verifica dell'identità personalizzato e collegarlo a un elemento di associazione di sicurezza in un'associazione personalizzata. È inoltre necessario utilizzare le credenziali personalizzate anziché quelle predefinite.

Nel diagramma seguente vengono illustrate le classi coinvolte nell'associazione personalizzata e il modo in cui viene collegato il sistema di verifica dell'identità personalizzato. I diversi elementi di associazione coinvolti ereditano tutti da BindingElement. AsymmetricSecurityBindingElement dispone della proprietà LocalClientSecuritySettings che restituisce un'istanza di IdentityVerifier, da cui viene personalizzato MyIdentityVerifier.

Per altre informazioni sulla creazione di un verificatore di identità personalizzato, vedere Procedura: Creare un verificatore di identità client personalizzato.

Per utilizzare certificati separati per la firma e la crittografia

1. Definire una nuova classe di credenziali client che eredita dalla classe ClientCredentials. Implementare quattro nuove proprietà per consentire di specificare più certificati: ClientSigningCertificate, ClientEncryptingCertificate, ServiceSigningCertificate e ServiceEncryptingCertificate. Eseguire inoltre l'override del metodo CreateSecurityTokenManager per restituire un'istanza della classe ClientCredentialsSecurityTokenManager personalizzata definita nel passaggio successivo.

   public class MyClientCredentials : ClientCredentials
   {
       X509Certificate2 clientSigningCert;
       X509Certificate2 clientEncryptingCert;
       X509Certificate2 serviceSigningCert;
       X509Certificate2 serviceEncryptingCert;
   
       public MyClientCredentials()
       {
       }
   
       protected MyClientCredentials(MyClientCredentials other)
           : base(other)
       {
           this.clientEncryptingCert = other.clientEncryptingCert;
           this.clientSigningCert = other.clientSigningCert;
           this.serviceEncryptingCert = other.serviceEncryptingCert;
           this.serviceSigningCert = other.serviceSigningCert;
       }
   
       public X509Certificate2 ClientSigningCertificate
       {
           get
           {
               return this.clientSigningCert;
           }
           set
           {
               this.clientSigningCert = value;
           }
       }
   
       public X509Certificate2 ClientEncryptingCertificate
       {
           get
           {
               return this.clientEncryptingCert;
           }
           set
           {
               this.clientEncryptingCert = value;
           }
       }
   
       public X509Certificate2 ServiceSigningCertificate
       {
           get
           {
               return this.serviceSigningCert;
           }
           set
           {
               this.serviceSigningCert = value;
           }
       }
   
       public X509Certificate2 ServiceEncryptingCertificate
       {
           get
           {
               return this.serviceEncryptingCert;
           }
           set
           {
               this.serviceEncryptingCert = value;
           }
       }
   
       public override SecurityTokenManager CreateSecurityTokenManager()
       {
           return new MyClientCredentialsSecurityTokenManager(this);
       }
   
       protected override ClientCredentials CloneCore()
       {
           return new MyClientCredentials(this);
       }
   }
   

   Public Class MyClientCredentials
       Inherits ClientCredentials
   
       Private clientSigningCert As X509Certificate2
       Private clientEncryptingCert As X509Certificate2
       Private serviceSigningCert As X509Certificate2
       Private serviceEncryptingCert As X509Certificate2
   
       Public Sub New()
       End Sub
   
       Protected Sub New(ByVal other As MyClientCredentials)
           MyBase.New(other)
           Me.clientEncryptingCert = other.clientEncryptingCert
           Me.clientSigningCert = other.clientSigningCert
           Me.serviceEncryptingCert = other.serviceEncryptingCert
           Me.serviceSigningCert = other.serviceSigningCert
       End Sub
   
       Public Property ClientSigningCertificate() As X509Certificate2
           Get
               Return Me.clientSigningCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.clientSigningCert = value
           End Set
       End Property
   
       Public Property ClientEncryptingCertificate() As X509Certificate2
           Get
               Return Me.clientEncryptingCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.clientEncryptingCert = value
           End Set
       End Property
   
       Public Property ServiceSigningCertificate() As X509Certificate2
           Get
               Return Me.serviceSigningCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.serviceSigningCert = value
           End Set
       End Property
   
       Public Property ServiceEncryptingCertificate() As X509Certificate2
           Get
               Return Me.serviceEncryptingCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.serviceEncryptingCert = value
           End Set
       End Property
   
       Public Overrides Function CreateSecurityTokenManager() As SecurityTokenManager
           Return New MyClientCredentialsSecurityTokenManager(Me)
       End Function
   
       Protected Overrides Function CloneCore() As ClientCredentials
           Return New MyClientCredentials(Me)
       End Function
   
   End Class
   

2. Definire un nuovo gestore del token di sicurezza che eredita dalla classe ClientCredentialsSecurityTokenManager. Eseguire l'override del metodo CreateSecurityTokenProvider per creare un provider di token di sicurezza appropriato. Il parametro requirement (SecurityTokenRequirement) specifica la direzione del messaggio e l'utilizzo della chiave.

   internal class MyClientCredentialsSecurityTokenManager :
       ClientCredentialsSecurityTokenManager
   {
       MyClientCredentials credentials;
   
       public MyClientCredentialsSecurityTokenManager(
           MyClientCredentials credentials): base(credentials)
       {
           this.credentials = credentials;
       }
   
       public override SecurityTokenProvider CreateSecurityTokenProvider(
           SecurityTokenRequirement requirement)
       {
           SecurityTokenProvider result = null;
           if (requirement.TokenType == SecurityTokenTypes.X509Certificate)
           {
               MessageDirection direction = requirement.GetProperty
                   <MessageDirection>(ServiceModelSecurityTokenRequirement.
                   MessageDirectionProperty);
               if (direction == MessageDirection.Output)
               {
                   if (requirement.KeyUsage == SecurityKeyUsage.Signature)
                   {
                       result = new X509SecurityTokenProvider(
                           this.credentials.ClientSigningCertificate);
                   }
                   else
                   {
                       result = new X509SecurityTokenProvider(this.credentials.
                           ServiceEncryptingCertificate);
                   }
               }
               else
               {
                   if (requirement.KeyUsage == SecurityKeyUsage.Signature)
                   {
                       result = new X509SecurityTokenProvider(this.
                           credentials.ServiceSigningCertificate);
                   }
                   else
                   {
                       result = new X509SecurityTokenProvider(credentials.
                           ClientEncryptingCertificate);
                   }
               }
           }
           else
           {
               result = base.CreateSecurityTokenProvider(requirement);
           }
   
           return result;
       }
   
       public override SecurityTokenAuthenticator
           CreateSecurityTokenAuthenticator(SecurityTokenRequirement
           tokenRequirement, out SecurityTokenResolver outOfBandTokenResolver)
       {
           return base.CreateSecurityTokenAuthenticator(tokenRequirement,
               out outOfBandTokenResolver);
       }
   }
   

   Friend Class MyClientCredentialsSecurityTokenManager
       Inherits ClientCredentialsSecurityTokenManager
   
       Private credentials As MyClientCredentials
   
       Public Sub New(ByVal credentials As MyClientCredentials)
           MyBase.New(credentials)
           Me.credentials = credentials
       End Sub
   
       Public Overrides Function CreateSecurityTokenProvider(ByVal requirement As SecurityTokenRequirement) As SecurityTokenProvider
           Dim result As SecurityTokenProvider = Nothing
           If requirement.TokenType = SecurityTokenTypes.X509Certificate Then
               Dim direction = requirement.GetProperty(Of MessageDirection)(ServiceModelSecurityTokenRequirement.MessageDirectionProperty)
               If direction = MessageDirection.Output Then
                   If requirement.KeyUsage = SecurityKeyUsage.Signature Then
                       result = New X509SecurityTokenProvider(Me.credentials.ClientSigningCertificate)
                   Else
                       result = New X509SecurityTokenProvider(Me.credentials.ServiceEncryptingCertificate)
                   End If
               Else
                   If requirement.KeyUsage = SecurityKeyUsage.Signature Then
                       result = New X509SecurityTokenProvider(Me.credentials.ServiceSigningCertificate)
                   Else
                       result = New X509SecurityTokenProvider(credentials.ClientEncryptingCertificate)
                   End If
               End If
           Else
               result = MyBase.CreateSecurityTokenProvider(requirement)
           End If
   
           Return result
       End Function
   
       Public Overrides Function CreateSecurityTokenAuthenticator(ByVal tokenRequirement As SecurityTokenRequirement, _
                                                                  <System.Runtime.InteropServices.Out()> ByRef outOfBandTokenResolver As SecurityTokenResolver) As SecurityTokenAuthenticator
           Return MyBase.CreateSecurityTokenAuthenticator(tokenRequirement, _
                                                          outOfBandTokenResolver)
       End Function
   
   End Class
   

3. Definire una nuova classe di credenziali del servizio che eredita dalla classe ServiceCredentials. Implementare quattro nuove proprietà per consentire di specificare più certificati: ClientSigningCertificate, ClientEncryptingCertificate, ServiceSigningCertificate e ServiceEncryptingCertificate. Eseguire inoltre l'override del metodo CreateSecurityTokenManager per restituire un'istanza della classe ServiceCredentialsSecurityTokenManager personalizzata definita nel passaggio successivo.

   public class MyServiceCredentials : ServiceCredentials
   {
       X509Certificate2 clientSigningCert;
       X509Certificate2 clientEncryptingCert;
       X509Certificate2 serviceSigningCert;
       X509Certificate2 serviceEncryptingCert;
   
       public MyServiceCredentials()
       {
       }
   
       protected MyServiceCredentials(MyServiceCredentials other)
           : base(other)
       {
           this.clientEncryptingCert = other.clientEncryptingCert;
           this.clientSigningCert = other.clientSigningCert;
           this.serviceEncryptingCert = other.serviceEncryptingCert;
           this.serviceSigningCert = other.serviceSigningCert;
       }
   
       public X509Certificate2 ClientSigningCertificate
       {
           get
           {
               return this.clientSigningCert;
           }
           set
           {
               this.clientSigningCert = value;
           }
       }
   
       public X509Certificate2 ClientEncryptingCertificate
       {
           get
           {
               return this.clientEncryptingCert;
           }
           set
           {
               this.clientEncryptingCert = value;
           }
       }
   
       public X509Certificate2 ServiceSigningCertificate
       {
           get
           {
               return this.serviceSigningCert;
           }
           set
           {
               this.serviceSigningCert = value;
           }
       }
   
       public X509Certificate2 ServiceEncryptingCertificate
       {
           get
           {
               return this.serviceEncryptingCert;
           }
           set
           {
               this.serviceEncryptingCert = value;
           }
       }
   
       public override SecurityTokenManager CreateSecurityTokenManager()
       {
           return new MyServiceCredentialsSecurityTokenManager(this);
       }
   
       protected override ServiceCredentials CloneCore()
       {
           return new MyServiceCredentials(this);
       }
   }
   

   Public Class MyServiceCredentials
       Inherits ServiceCredentials
   
       Private clientSigningCert As X509Certificate2
       Private clientEncryptingCert As X509Certificate2
       Private serviceSigningCert As X509Certificate2
       Private serviceEncryptingCert As X509Certificate2
   
       Public Sub New()
       End Sub
   
       Protected Sub New(ByVal other As MyServiceCredentials)
           MyBase.New(other)
           Me.clientEncryptingCert = other.clientEncryptingCert
           Me.clientSigningCert = other.clientSigningCert
           Me.serviceEncryptingCert = other.serviceEncryptingCert
           Me.serviceSigningCert = other.serviceSigningCert
       End Sub
   
       Public Property ClientSigningCertificate() As X509Certificate2
           Get
               Return Me.clientSigningCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.clientSigningCert = value
           End Set
       End Property
   
       Public Property ClientEncryptingCertificate() As X509Certificate2
           Get
               Return Me.clientEncryptingCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.clientEncryptingCert = value
           End Set
       End Property
   
       Public Property ServiceSigningCertificate() As X509Certificate2
           Get
               Return Me.serviceSigningCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.serviceSigningCert = value
           End Set
       End Property
   
       Public Property ServiceEncryptingCertificate() As X509Certificate2
           Get
               Return Me.serviceEncryptingCert
           End Get
           Set(ByVal value As X509Certificate2)
               Me.serviceEncryptingCert = value
           End Set
       End Property
   
       Public Overrides Function CreateSecurityTokenManager() As SecurityTokenManager
           Return New MyServiceCredentialsSecurityTokenManager(Me)
       End Function
   
       Protected Overrides Function CloneCore() As ServiceCredentials
           Return New MyServiceCredentials(Me)
       End Function
   
   End Class
   

4. Definire un nuovo gestore del token di sicurezza del servizio che eredita dalla classe ServiceCredentialsSecurityTokenManager. Eseguire l'override del metodo CreateSecurityTokenProvider per creare un provider di token di sicurezza appropriato per la direzione del messaggio passato e l'utilizzo della chiave.

   internal class MyServiceCredentialsSecurityTokenManager :
       ServiceCredentialsSecurityTokenManager
   {
       MyServiceCredentials credentials;
   
       public MyServiceCredentialsSecurityTokenManager(
           MyServiceCredentials credentials)
           : base(credentials)
       {
           this.credentials = credentials;
       }
   
       public override SecurityTokenProvider CreateSecurityTokenProvider(
           SecurityTokenRequirement requirement)
       {
           SecurityTokenProvider result = null;
           if (requirement.TokenType == SecurityTokenTypes.X509Certificate)
           {
               MessageDirection direction = requirement.
                   GetProperty<MessageDirection>(
                   ServiceModelSecurityTokenRequirement.
                   MessageDirectionProperty);
               if (direction == MessageDirection.Input)
               {
                   if (requirement.KeyUsage == SecurityKeyUsage.Exchange)
                   {
                       result = new X509SecurityTokenProvider(
                           credentials.ServiceEncryptingCertificate);
                   }
                   else
                   {
                       result = new X509SecurityTokenProvider(
                           credentials.ClientSigningCertificate);
                   }
               }
               else
               {
                   if (requirement.KeyUsage == SecurityKeyUsage.Signature)
                   {
                       result = new X509SecurityTokenProvider(
                           credentials.ServiceSigningCertificate);
                   }
                   else
                   {
                       result = new X509SecurityTokenProvider(
                           credentials.ClientEncryptingCertificate);
                   }
               }
           }
           else
           {
               result = base.CreateSecurityTokenProvider(requirement);
           }
           return result;
       }
   }
   

   Friend Class MyServiceCredentialsSecurityTokenManager
       Inherits ServiceCredentialsSecurityTokenManager
   
       Private credentials As MyServiceCredentials
   
       Public Sub New(ByVal credentials As MyServiceCredentials)
           MyBase.New(credentials)
           Me.credentials = credentials
       End Sub
   
       Public Overrides Function CreateSecurityTokenProvider(ByVal requirement As SecurityTokenRequirement) As SecurityTokenProvider
           Dim result As SecurityTokenProvider = Nothing
           If requirement.TokenType = SecurityTokenTypes.X509Certificate Then
               Dim direction = requirement.GetProperty(Of MessageDirection)(ServiceModelSecurityTokenRequirement.MessageDirectionProperty)
               If direction = MessageDirection.Input Then
                   If requirement.KeyUsage = SecurityKeyUsage.Exchange Then
                       result = New X509SecurityTokenProvider(credentials.ServiceEncryptingCertificate)
                   Else
                       result = New X509SecurityTokenProvider(credentials.ClientSigningCertificate)
                   End If
               Else
                   If requirement.KeyUsage = SecurityKeyUsage.Signature Then
                       result = New X509SecurityTokenProvider(credentials.ServiceSigningCertificate)
                   Else
                       result = New X509SecurityTokenProvider(credentials.ClientEncryptingCertificate)
                   End If
               End If
           Else
               result = MyBase.CreateSecurityTokenProvider(requirement)
           End If
           Return result
       End Function
   
   End Class
   

Per utilizzare più certificati sul client

1. Creare un'associazione personalizzata. È necessario che l'elemento di associazione di sicurezza operi in modalità duplex per consentire ai provider di token di sicurezza diversi di essere presenti per le richieste e le risposte. A questo scopo, è possibile aggiungere un trasporto con funzionalità duplex o utilizzare la classe CompositeDuplexBindingElement come illustrato nel codice seguente. Collegare l'oggetto IdentityVerifier personalizzato definito nel passaggio successivo all'elemento di associazione di sicurezza. Sostituire le credenziali client predefinite con le credenziali client personalizzate create precedentemente.

               EndpointAddress serviceEndpoint =
                   new EndpointAddress(new Uri("http://localhost:6060/service"));
   
               CustomBinding binding = new CustomBinding();
   
               AsymmetricSecurityBindingElement securityBE =
                   SecurityBindingElement.CreateMutualCertificateDuplexBindingElement(
                   MessageSecurityVersion.
   WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10);
               // Add a custom IdentityVerifier because the service uses two certificates
               // (one for signing and one for encryption) and an endpoint identity that
               // contains a single identity claim.
               securityBE.LocalClientSettings.IdentityVerifier = new MyIdentityVerifier();
               binding.Elements.Add(securityBE);
   
               CompositeDuplexBindingElement compositeDuplex =
                   new CompositeDuplexBindingElement();
               compositeDuplex.ClientBaseAddress = new Uri("http://localhost:6061/client");
               binding.Elements.Add(compositeDuplex);
   
               binding.Elements.Add(new OneWayBindingElement());
   
               binding.Elements.Add(new HttpTransportBindingElement());
   
               using (ChannelFactory<IMyServiceChannel> factory =
                   new ChannelFactory<IMyServiceChannel>(binding, serviceEndpoint))
               {
                   MyClientCredentials credentials = new MyClientCredentials();
                   SetupCertificates(credentials);
                   factory.Endpoint.Behaviors.Remove(typeof(ClientCredentials));
                   factory.Endpoint.Behaviors.Add(credentials);
   
                   IMyServiceChannel channel = factory.CreateChannel();
                   Console.WriteLine(channel.Hello("world"));
                   channel.Close();
               }
   

   Dim serviceEndpoint As New EndpointAddress(New Uri("http://localhost:6060/service"))
   
   Dim binding As New CustomBinding()
   
   Dim securityBE = SecurityBindingElement.CreateMutualCertificateDuplexBindingElement(MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10)
   ' Add a custom IdentityVerifier because the service uses two certificates 
   ' (one for signing and one for encryption) and an endpoint identity that 
   ' contains a single identity claim.
   securityBE.LocalClientSettings.IdentityVerifier = New MyIdentityVerifier()
   binding.Elements.Add(securityBE)
   
   Dim compositeDuplex As New CompositeDuplexBindingElement()
   
   compositeDuplex.ClientBaseAddress = New Uri("http://localhost:6061/client")
   
   With binding.Elements
       .Add(compositeDuplex)
       .Add(New OneWayBindingElement())
       .Add(New HttpTransportBindingElement())
   End With
   
   Using factory As New ChannelFactory(Of IMyServiceChannel)(binding, serviceEndpoint)
       Dim credentials As New MyClientCredentials()
       SetupCertificates(credentials)
   
       With factory.Endpoint.Behaviors
           .Remove(GetType(ClientCredentials))
           .Add(credentials)
       End With
   
       Dim channel = factory.CreateChannel()
       Console.WriteLine(channel.Hello("world"))
       channel.Close()
   End Using
   

2. Definire un oggetto IdentityVerifier personalizzato. Il servizio possiede più identità poiché vengono utilizzati certificati diversi per crittografare la richiesta e firmare la risposta.

   Nota

   Nell'esempio seguente, il verificatore di identità personalizzato non esegue alcun controllo di identità dell'endpoint a scopo dimostrativo. Non è tuttavia una pratica consigliabile per il codice di produzione.

   class MyIdentityVerifier : IdentityVerifier
   {
       IdentityVerifier defaultVerifier;
   
       public MyIdentityVerifier()
       {
           this.defaultVerifier = IdentityVerifier.CreateDefault();
       }
   
       public override bool CheckAccess(EndpointIdentity identity,
           AuthorizationContext authContext)
       {
           // The following implementation is for demonstration only, and
           // does not perform any checks regarding EndpointIdentity.
           // Do not use this for production code.
           return true;
       }
   
       public override bool TryGetIdentity(EndpointAddress reference,
           out EndpointIdentity identity)
       {
           return this.defaultVerifier.TryGetIdentity(reference, out identity);
       }
   }
   
   

   Friend Class MyIdentityVerifier
       Inherits IdentityVerifier
   
       Private defaultVerifier As IdentityVerifier
   
       Public Sub New()
           Me.defaultVerifier = IdentityVerifier.CreateDefault()
       End Sub
   
       Public Overrides Function CheckAccess(ByVal identity As EndpointIdentity, ByVal authContext As AuthorizationContext) As Boolean
           ' The following implementation is for demonstration only, and
           ' does not perform any checks regarding EndpointIdentity.
           ' Do not use this for production code.
           Return True
       End Function
   
       Public Overrides Function TryGetIdentity(ByVal reference As EndpointAddress, <System.Runtime.InteropServices.Out()> ByRef identity As EndpointIdentity) As Boolean
           Return Me.defaultVerifier.TryGetIdentity(reference, identity)
       End Function
   
   End Class
   

Per utilizzare più certificati nel servizio

1. Creare un'associazione personalizzata. È necessario che l'elemento di associazione di sicurezza operi in modalità duplex per consentire ai provider di token di sicurezza diversi di essere presenti per le richieste e le risposte. Come per il lato client, utilizzare un trasporto con funzionalità duplex o la classe CompositeDuplexBindingElement come illustrato nel codice seguente. Sostituire le credenziali del servizio predefinite con quelle personalizzate create precedentemente.

               Uri serviceEndpoint = new Uri("http://localhost:6060/service");
               using (ServiceHost host = new ServiceHost(typeof(Service), serviceEndpoint))
               {
                   CustomBinding binding = new CustomBinding();
                   binding.Elements.Add(SecurityBindingElement.
                       CreateMutualCertificateDuplexBindingElement(
   MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10));
                   binding.Elements.Add(new CompositeDuplexBindingElement());
                   binding.Elements.Add(new OneWayBindingElement());
                   binding.Elements.Add(new HttpTransportBindingElement());
   
                   MyServiceCredentials credentials = new MyServiceCredentials();
                   SetupCertificates(credentials);
                   host.Description.Behaviors.Remove(typeof(ServiceCredentials));
                   host.Description.Behaviors.Add(credentials);
   
                   ServiceEndpoint endpoint = host.AddServiceEndpoint(
                       typeof(IMyService), binding, "");
                   host.Open();
   
                   Console.WriteLine("Service started, press ENTER to stop...");
                   Console.ReadLine();
               }
   

   Dim serviceEndpoint As New Uri("http://localhost:6060/service")
   Using host As New ServiceHost(GetType(Service), serviceEndpoint)
       Dim binding As New CustomBinding()
   
       With binding.Elements
           .Add(SecurityBindingElement.CreateMutualCertificateDuplexBindingElement(MessageSecurityVersion.WSSecurity10WSTrustFebruary2005WSSecureConversationFebruary2005WSSecurityPolicy11BasicSecurityProfile10))
           .Add(New CompositeDuplexBindingElement())
           .Add(New OneWayBindingElement())
           .Add(New HttpTransportBindingElement())
       End With
   
       Dim credentials As New MyServiceCredentials()
       SetupCertificates(credentials)
       With host.Description.Behaviors
           .Remove(GetType(ServiceCredentials))
           .Add(credentials)
       End With
   
       Dim endpoint = host.AddServiceEndpoint(GetType(IMyService), binding, "")
       host.Open()
   
       Console.WriteLine("Service started, press ENTER to stop...")
       Console.ReadLine()
   End Using
   

Vedi anche

• ClientCredentials
• ServiceCredentials
• ClientCredentialsSecurityTokenManager
• ServiceCredentialsSecurityTokenManager
• IdentityVerifier
• Procedura dettagliata: creazione di credenziali client e del servizio personalizzate