Classic ASP Requires Chilkat v10.1.2+

Secure FTP with Client Certificate

Chilkat FTP2 provides the ability to use a client certificate with secure FTP (implicit or explicit SSL/TLS). This example demonstrates how to load a certificate from a .pfx and use it as the client-side SSL cert. Note: Client-side certificates are only needed in situations where the server demands one.

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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

'  This example requires the Chilkat API to have been previously unlocked.
'  See Global Unlock Sample for sample code.

set ftp = Server.CreateObject("Chilkat.Ftp2")

ftp.Hostname = "ftp.example.com"
ftp.Port = 21
ftp.Username = "test"
ftp.Password = "test"

'  This example will use explict TLS/SSL.
'  Establish an explicit secure channel after connection
'  on the standard FTP port 21.
ftp.AuthTls = 1

'  The Ssl property is for establishing an implicit SSL connection
'  on port 990.  Because this example uses explicit SSL, it 
'  should remain 0.
ftp.Ssl = 0

'  Load a certificate from a .pfx
'  A PFX may contain several certs, including the certificates
'  in a chain of authority.
set certStore = Server.CreateObject("Chilkat.CertStore")

password = "***"
'  Load the certs from a PFX into an in-memory certificate store:
success = certStore.LoadPfxFile("chilkat.pfx",password)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( certStore.LastErrorText) & "</pre>"
    Response.End
End If

'  Find the desired certificate.
set jsonCN = Server.CreateObject("Chilkat.JsonObject")
success = jsonCN.UpdateString("CN","cert common name")

set cert = Server.CreateObject("Chilkat.Cert")
success = certStore.FindCert(jsonCN,cert)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( "Certificate not found!") & "</pre>"
    Response.End
End If

'  Use this certificate for our secure (SSL/TLS) connection:
success = ftp.SetSslClientCert(cert)

'  Connect and login to the FTP server.  The connection is 
'  made secure because of the AuthTls setting.
success = ftp.Connect()
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
    Response.End
Else
    '  LastErrorText contains information even when
    '  successful. This allows you to visually verify
    '  that the secure connection actually occurred.
    Response.Write "<pre>" & Server.HTMLEncode( ftp.LastErrorText) & "</pre>"
End If

Response.Write "<pre>" & Server.HTMLEncode( "Secure FTP Channel Established!") & "</pre>"

'  Do whatever you're doing to do ...
'  upload files, download files, etc...

'  .....
'  .....

success = ftp.Disconnect()

%>
</body>
</html>