Delphi ActiveX Requires Chilkat v10.1.2+

Using WS_FTP Self-signed Certificate file (.crt) and Private Key File. (.key)

See more FTP Examples

Demonstrates how to use a self-signed certificate created by WS_FTP with Chilkat FTP2.

Note: It is usually not necessary for the FTP client to use a client-side certificate. Most FTP servers using SSL and TLS connections (explicit or implicit) do not require client-side certs. In addition, some high-security FTP servers require "real" certificates -- meaning certificates issued by a real certificate authority with a chain of authentication that leads to a trusted root certificate. The certificates created by WS_FTP are self-signed and untrusted.

Delphi ActiveX

var
success: Integer;
ftp: TChilkatFtp2;
certStore: TChilkatCertStore;
jsonCN: TChilkatJsonObject;
cert: TChilkatCert;

begin
success := 0;

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

//  Important:  Before running this program, convert your
//  .crt and .key files to a .p12 using OpenSSL:
//  The command is this:
//  openssl pkcs12 -export -in test.crt -inkey test.key -out test.p12
//  

ftp := TChilkatFtp2.Create(Self);

ftp.Hostname := 'ftp.example.com';
ftp.Port := 21;
ftp.Username := 'testLogin';
ftp.Password := 'testPassword';

//  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;

//  Create an instance of a certificate store object, load a .p12 file,
//  locate the certificate we need, and use it for signing.
//  (a P12/PFX file may contain more than one certificate.)
certStore := TChilkatCertStore.Create(Self);
//  The 1st argument is the filename, the 2nd arg is the 
//  .p12 file's password.  (OpenSSL will prompty you to set a password
//  when converting the .crt and .key into a .p12).
success := certStore.LoadPfxFile('test.p12','secret');
if (success <> 1) then
  begin
    Memo1.Lines.Add(certStore.LastErrorText);
    Exit;
  end;

jsonCN := TChilkatJsonObject.Create(Self);
jsonCN.UpdateString('CN','cert common name');

cert := TChilkatCert.Create(Self);
success := certStore.FindCert(jsonCN.ControlInterface,cert.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(certStore.LastErrorText);
    Exit;
  end;

success := ftp.SetSslClientCert(cert.ControlInterface);

//  Connect and login to the FTP server.
success := ftp.Connect();
if (success <> 1) then
  begin
    Memo1.Lines.Add(ftp.LastErrorText);
    Exit;
  end
else
  begin
    //  LastErrorText contains information even when
    //  successful. This allows you to visually verify
    //  that the secure connection actually occurred.
    Memo1.Lines.Add(ftp.LastErrorText);
  end;

Memo1.Lines.Add('Secure FTP Channel Established!');
Memo1.Lines.Add(ftp.LastErrorText);

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

//  ...
//  ...

success := ftp.Disconnect();