EncryptionServiceProvider.php

<?php
namespace Concrete\Core\Encryption;

use Concrete\Core\Foundation\Service\Provider as ServiceProvider;

class EncryptionServiceProvider extends ServiceProvider
{
    public function register()
    {
        $singletons = array(
            'helper/encryption' => '\Concrete\Core\Encryption\EncryptionService',
        );

        foreach ($singletons as $key => $value) {
            $this->app->singleton($key, $value);
        }
    }
}