PHP

SFTP Authenticate Secure

Demonstrates how to do SFTP password authentication with secure strings.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat2 PHP

<?php

use Chilkat2\Crypt2;
use Chilkat2\JsonObject;
use Chilkat2\SFtp;
use Chilkat2\SecureString;

// 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 JsonObject();
$json->LoadFile('qa_data/passwords/ssh.json');

$crypt = new 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 SecureString();
$ssPassword = new 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 SFtp();

try {
    $sftp->Connect('MY-SSH-SERVER-DOMAIN-OR-IP', 22);

    // Authenticate using secure strings
    $sftp->AuthenticateSecPw($ssLogin, $ssPassword);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "SFTP Authentication successful.\n";

$sftp->Disconnect();