phpencryptionphpseclib3des

phpseclib zero byte padding

How to add zero byte padding in phpseclib with encryption method 3des in EBC mode?

Here my current code: 

$cipher = new TripleDES(TripleDES::MODE_ECB);
$cipher->setKey('1234567890ABCDEFGHIJKLMN');
Solution

  • Just figure it out:

    1. Disable padding: <hack

      $cipher->disablePadding();

    2. Manually pad message (depending on size here I used multiple of 8): <hack

      $message_padded = $urlencoded;
if (strlen($message_padded) % 8) {
    $message_padded = str_pad($message_padded,
        strlen($message_padded) + 8 - strlen($message_padded) % 8, "\0");
}

    3. encrypt: <hack

      $result = $cipher -> encrypt($message_padded);