PHP ActiveX

SFTP Public-Key Authentication

See more SFTP Examples

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

<?php

$success = 0;

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

$sftp = new COM("Chilkat.SFtp");

// 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.
$hostname = 'sftp.example.com';
$port = 22;
$success = $sftp->Connect($hostname,$port);
if ($success != 1) {
    print $sftp->LastErrorText . "\n";
    exit;
}

$key = new COM("Chilkat.SshKey");

// 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.)
$privKey = $key->loadText('myPrivateKey.pem');
if ($key->LastMethodSuccess != 1) {
    print $key->LastErrorText . "\n";
    exit;
}

// 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) {
    print $key->LastErrorText . "\n";
    exit;
}

// 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) {
    print $sftp->LastErrorText . "\n";
    exit;
}

print $sftp->LastErrorText . "\n";
print 'Public-Key Authentication Successful!' . "\n";

?>