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RemoteIdentity Property

NegotiateStream.RemoteIdentity Property

Gets information about the identity of the remote party sharing this authenticated stream.

Namespace:  System.Net.Security
Assembly:  System (in System.dll)

public virtual IIdentity RemoteIdentity { get; }

Property Value

Type: System.Security.Principal.IIdentity
An IIdentity object that describes the identity of the remote endpoint.

ExceptionCondition
InvalidOperationException

Authentication failed or has not occurred.

When accessed by the client, this property returns a GenericIdentity containing the Service Principal Name (SPN) of the server and the authentication protocol used. When accessed by the server, this property returns a WindowsIdentity that describes the client. If the WindowsIdentity is not available, client information is returned to the server in a GenericIdentity.

The following code example demonstrates displaying the value of this property.

    public static void EndAuthenticateCallback (IAsyncResult ar)
    {
        // Get the saved data.
        ClientState cState = (ClientState) ar.AsyncState;
        TcpClient clientRequest = cState.Client;
        NegotiateStream authStream = (NegotiateStream) cState.AuthenticatedStream;
        Console.WriteLine("Ending authentication.");
        // Any exceptions that occurred during authentication are 
        // thrown by the EndAuthenticateAsServer method. 
        try 
        {
            // This call blocks until the authentication is complete.
            authStream.EndAuthenticateAsServer(ar);
        }
        catch (AuthenticationException e)
        {
            Console.WriteLine(e);
            Console.WriteLine("Authentication failed - closing connection.");
            cState.Waiter.Set();
            return;
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
            Console.WriteLine("Closing connection.");
            cState.Waiter.Set();
            return;
        }
        // Display properties of the authenticated client.
        IIdentity id = authStream.RemoteIdentity;
        Console.WriteLine("{0} was authenticated using {1}.", 
            id.Name, 
            id.AuthenticationType
            );
        cState.Waiter.Set();

}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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