PHP ActiveX

SFTP Authenticate Secure

Demonstrates how to do SFTP password authentication with secure strings.

This example requires Chilkat v9.5.0.71 or greater.

PHP ActiveX

<?php

$success = 0;

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

// Imagine we've previously saved our encrypted login and password within a JSON config file
// that contains this:

// {
//   "ssh_login": "2+qylFfC56Ck7OQQt/U2/w==",
//   "ssh_password": "5neIq9Jmn0E3p71N6Yc8TA=="
// }

$json = new COM("Chilkat.JsonObject");
$json->LoadFile('qa_data/passwords/ssh.json');

$crypt = new COM("Chilkat.Crypt2");

// These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
$crypt->CryptAlgorithm = 'aes';
$crypt->CipherMode = 'cbc';
$crypt->KeyLength = 128;
$crypt->SetEncodedKey('000102030405060708090A0B0C0D0E0F','hex');
$crypt->SetEncodedIV('000102030405060708090A0B0C0D0E0F','hex');
$crypt->EncodingMode = 'base64';

$ssLogin = new COM("Chilkat.SecureString");
$ssPassword = new COM("Chilkat.SecureString");

// Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
// a randomly generated session key.)
$crypt->DecryptSecureENC($json->stringOf('ssh_login'),$ssLogin);
$crypt->DecryptSecureENC($json->stringOf('ssh_password'),$ssPassword);

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

$success = $sftp->Connect('MY-SSH-SERVER-DOMAIN-OR-IP',22);
if ($success != 1) {
    print $sftp->LastErrorText . "\n";
    exit;
}

// Authenticate using secure strings
$success = $sftp->AuthenticateSecPw($ssLogin,$ssPassword);
if ($success != 1) {
    print $sftp->LastErrorText . "\n";
    exit;
}

print 'SFTP Authentication successful.' . "\n";

$sftp->Disconnect();

?>