SslStream.AuthenticateAsClient Method (String)
Called by clients to authenticate the server and optionally the client in a client-server connection.
Namespace: System.Net.Security
Assembly: System (in System.dll)
| Exception | Condition |
|---|---|
| ArgumentNullException | targetHost is null. |
| AuthenticationException | The authentication failed and left this object in an unusable state. |
| InvalidOperationException | Authentication has already occurred. -or- Server authentication using this SslStream was tried previously. -or- Authentication is already in progress. |
| ObjectDisposedException | This object has been closed. |
This method authenticates using Default. No client certificates are used in the authentication. The certificate revocation list is not checked during authentication. The value specified for targetHost must match the name on the server's certificate.
When authentication succeeds, you must check the IsEncrypted and IsSigned properties to determine what security services are used by the SslStream. Check the IsMutuallyAuthenticated property to determine whether mutual authentication occurred.
If the authentication fails, you receive a AuthenticationException, and this SslStream is no longer useable. You should close this object and remove all references to it so that it can be collected by the garbage collector.
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
