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Start SSH Keyboard-Interactive Authentication

Demonstrates the Chilkat Ssh.StartKeyboardAuth method, which begins keyboard-interactive authentication. The only argument is the login name. It returns XML describing the server's prompts and whether each response should be echoed. Answer the prompts with ContinueKeyboardAuth.

Background: Keyboard-interactive is the flexible, prompt-driven SSH method — the server sends one or more questions (a password, a one-time code, a security question) and the client answers each. It is how SSH supports two-factor and other challenge-response schemes. The returned XML tells you exactly what to ask the user and whether to mask their input.

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Local $bSuccess = False

;  Demonstrates the Ssh.StartKeyboardAuth method, which begins keyboard-interactive
;  authentication.  The only argument is the login name.  It returns XML describing the server's
;  prompts and whether each response should be echoed.

$oSsh = ObjCreate("Chilkat.Ssh")

;  Connect to the SSH server.  Port 22 is the usual SSH port.
Local $iSshPort = 22
$bSuccess = $oSsh.Connect("ssh.example.com",$iSshPort)
If ($bSuccess = False) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

;  Begin keyboard-interactive authentication.  The returned XML describes the prompts.
Local $sInfoRequestXml = $oSsh.StartKeyboardAuth("mySshLogin")
If ($oSsh.LastMethodSuccess = False) Then
    ConsoleWrite($oSsh.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite($sInfoRequestXml & @CRLF)

;  Answer the prompt(s) with ContinueKeyboardAuth.

$oSsh.Disconnect