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Visual Basic 6.0 Examples

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(Visual Basic 6.0) SFTP Public-Key Authentication

Demonstrates how to authenticate with an SSH/SFTP server using publickey authentication.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

'  Important: It is helpful to send the contents of the
'  sftp.LastErrorText property when requesting support.

Dim sftp As New ChilkatSFtp

'  Any string automatically begins a fully-functional 30-day trial.
Dim success As Long
success = sftp.UnlockComponent("Anything for 30-day trial")
If (success <> 1) Then
    Debug.Print sftp.LastErrorText
    Exit Sub
End If

'  Set some timeouts, in milliseconds:
sftp.ConnectTimeoutMs = 5000
sftp.IdleTimeoutMs = 15000

'  Connect to the SSH server.
'  The standard SSH port = 22
'  The hostname may be a hostname or IP address.
Dim port As Long
Dim hostname As String
hostname = "www.my-ssh-server.com"
port = 22
success = sftp.Connect(hostname,port)
If (success <> 1) Then
    Debug.Print sftp.LastErrorText
    Exit Sub
End If

Dim key As New ChilkatSshKey

'  Load a PEM file into a string variable:
'  (This does not load the PEM file into the key.  The LoadText
'  method is a convenience method for loading the full contents of ANY text
'  file into a string variable.)
Dim privKey As String
privKey = key.LoadText("myPrivateKey.pem")
If (key.LastMethodSuccess <> 1) Then
    Debug.Print key.LastErrorText
    Exit Sub
End If

'  Load a private key from a PEM string:
'  (Private keys may be loaded from OpenSSH and Putty formats.
'  Both encrypted and unencrypted private key file formats
'  are supported.  This example loads an unencrypted private
'  key in OpenSSH format.
success = key.FromOpenSshPrivateKey(privKey)
If (success <> 1) Then
    Debug.Print key.LastErrorText
    Exit Sub
End If

'  Authenticate with the SSH server.  Chilkat SFTP supports
'  both password-based authenication as well as public-key
'  authentication.
success = sftp.AuthenticatePk("myLogin",key)
If (success <> 1) Then
    Debug.Print sftp.LastErrorText
    Exit Sub
End If

Debug.Print sftp.LastErrorText
Debug.Print "Public-Key Authentication Successful!"

 

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