(PHP ActiveX) SFTP use Cert's Private Key for Authentication (Windows)

Demonstrates how to use the private key of a pre-installed certificate (on Windows) for SFTP authentication. The certificate's private key must be marked as "exportable" when originally installed.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert')
$cert = new COM("Chilkat.Cert");

// Load the certificate from the Windows certificate store
$success = $cert->LoadByCommonName('my_cert_common_name');
if ($success == 0) {
    print $cert->LastErrorText . "\n";
    exit;
}

// Get the private key.  
// privKey is a Chilkat.PrivateKey
$privKey = $cert->ExportPrivateKey();
if ($cert->LastMethodSuccess == 0) {
    print $cert->LastErrorText . "\n";
    exit;
}

$privKeyPem = $privKey->getPkcs8Pem();
if ($privKey->LastMethodSuccess == 0) {
    print $privKey->LastErrorText . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.SshKey')
$sshKey = new COM("Chilkat.SshKey");
$success = $sshKey->FromOpenSshPrivateKey($privKeyPem);
if ($success == 0) {
    print $sshKey->LastErrorText . "\n";
    exit;
}

// Connect to an SSH/SFTP server
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.SFtp')
$sftp = new COM("Chilkat.SFtp");
$success = $sftp->Connect('sftp.example.com',22);
if ($success == 0) {
    print $sftp->LastErrorText . "\n";
    exit;
}

// Authenticate with the SSH server using a username + private key.
// (The private key serves as the password.  The username identifies
// the SSH user account on the server.)
$success = $sftp->AuthenticatePk('mySshLogin',$sshKey);
if ($success == 0) {
    print $sftp->LastErrorText . "\n";
    exit;
}

print 'OK, the connection and authentication with the SSH server is completed.' . "\n";

// This example is only to show the connection + authentication using a private key associated with a certificate in the Windows certificate store...

?>