Encrypt configuration field

[Michacy]

Hi everyone,

I'm beginner in prestashop.

I would like create a integration plugin, but I have a problem.

I created configuration page for this plugin, but one field should be encrypted by md5.

I don't know how I can do this. Can you help me?

 

In controller I have this:

public function __construct()
{
 $this->className = 'Configuration';
 $this->table = 'configuration';
 parent::__construct();
 // Options list
 $this->fields_options = array(
  'general' => array(
   'title' => $this->l('General'),
   'fields' => array(
 'A_LOGIN' => array(
  'title' => $this->l('Login'),
  'type' => 'text',
  'required' => true,
  'size' => 25,
  'visibility' => Shop::CONTEXT_ALL
 ),
 'A_PASSWORD' => array(
  'title' => $this->l('Passwird'),
  'type' => 'password',
  'required' => true,
  'size' => 32,
  'visibility' => Shop::CONTEXT_ALL
 ),
   ),
   'submit' => array()
  )
 );

 

The field password should be encrypted.