SodiumFreePasswordEncryptor ( Salt-less MD5, SHA, &c ) - The necessary evil for seamlessly migrating accounts/passwords into SilverStripe 3.1 + projects

SodiumFreePasswordEncryptor.php

<?php

/**
 * Sodium Free Password Encryptor -- for importing legacy passwords
 * into SilverSripe 3.1+ projects 
 * 
 *   1. Register via mysite/_config/encryptors.yml, e.g.
 **

---
PasswordEncryptor:
  encryptors:
    sf_md5:
      SodiumFreePasswordEncryptor: md5
    sf_sha1:
      SodiumFreePasswordEncryptor: sha1

 * example usage
 **

$member = new Member();

$member->Email = 'brice@brice.com';
$member->Password = 'brice';
$member->PasswordEncryption = 'sf_md5';
$member->write();

 **
 */

class SodiumFreePasswordEncryptor extends PasswordEncryptor_PHPHash {

    public function salt($password, $member = null){
        return '';
    }
}