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

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.

Download 32-bit Chilkat FTP2 ActiveX (.msi)

Download All 32-bit Chilkat ActiveX Components (.zip)

Download All 64-bit Chilkat ActiveX Components (.zip)

<?php

//  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 = new COM("Chilkat.Ftp2");

//  Any string unlocks the component for the 1st 30-days.
$success = $ftp->UnlockComponent('Anything for 30-day trial');
if ($success != true) {
    print $ftp->lastErrorText() . "\n";
    exit;
}

$ftp->Hostname = 'ftp.***.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 = true;

//  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 = false;

//  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 = new COM("Chilkat.CertStore");
//  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 != true) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

// cert is a Chilkat.Cert
$cert = $certStore->FindCertBySubjectCN('Your cert's common name');
if (is_null($cert)) {
    print $certStore->lastErrorText() . "\n";
    exit;
}

$ftp->SetSslClientCert($cert);

//  Connect and login to the FTP server.
$success = $ftp->Connect();
if ($success != true) {
    print $ftp->lastErrorText() . "\n";
    exit;
}
else {
    //  LastErrorText contains information even when
    //  successful. This allows you to visually verify
    //  that the secure connection actually occurred.
    print $ftp->lastErrorText() . "\n";
}

print 'Secure FTP Channel Established!' . "\n";
print $ftp->lastErrorText() . "\n";

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

//  ...
//  ...

$ftp->Disconnect();
?>