NegotiateStream::AuthenticateAsClient Method (NetworkCredential^, String^)
Called by clients to authenticate the client, and optionally the server, in a client-server connection. The authentication process uses the specified client credential.
Assembly: System (in System.dll)
public: virtual void AuthenticateAsClient( NetworkCredential^ credential, String^ targetName )
Parameters
- credential
-
Type:
System.Net::NetworkCredential^
The NetworkCredential that is used to establish the identity of the client.
- targetName
-
Type:
System::String^
The Service Principal Name (SPN) that uniquely identifies the server to authenticate.
| Exception | Condition |
|---|---|
| AuthenticationException | The authentication failed. You can use this object to retry the authentication. |
| InvalidCredentialException | The authentication failed. You can use this object to retry the authentication. |
| ObjectDisposedException | This object has been closed. |
| InvalidOperationException | Authentication has already occurred. - or - This stream was used previously to attempt authentication as the server. You cannot use the stream to retry authentication as the client. |
| ArgumentNullException | targetName is null. |
The impersonation level is Identification, the security level is EncryptAndSign, and mutual authentication is requested. The NegotiateStream class will construct the SPN used for mutual authentication.
When authentication succeeds, you must check the IsEncrypted and IsSigned properties to determine what security services are used by the NegotiateStream. Check the IsMutuallyAuthenticated property to determine whether mutual authentication occurred.
to use the explicit System.Net::NetworkCredential. Associated enumeration: SecurityPermissionFlag::ControlPrincipal.
Available since 2.0