title: phpseclib 2 RSA decryption works fine but phpseclib 3 RSA decryption not work properly
body: <p><strong>phpseclib2 sample</strong> - <strong>working</strong></p>
  <pre><code>use phpseclib\Crypt\RSA;
  $rsa = new RSA();
  $rsa-&gt;loadKey($PRIVATE_KEY);
  $key = $rsa-&gt;decrypt(base64_decode($a));
  </code></pre>
  <p><strong>phpseclib3 sample</strong> - <strong>not working</strong></p>
  <pre><code>use phpseclib3\Crypt\PublicKeyLoader;
  
  $private = PublicKeyLoader::load($PRIVATE_KEY);
  $key = $private-&gt;decrypt(base64_decode($a));
  </code></pre>