secretfield.php

<?php
namespace Bitrix\Main\ORM\Fields;
 
use Bitrix\Main\Security;
 
class SecretField extends CryptoField
{
    protected $secretLength = 20;
 
    public function __construct($name, $parameters = [])
    {
        //the order of modifiers is important
        $this->addSaveDataModifier([$this, 'encode']);
 
        parent::__construct($name, $parameters);
 
        $this->addFetchDataModifier([$this, 'decode']);
 
        if(isset($parameters['secret_length']))
        {
            $this->configureSecretLength($parameters['secret_length']);
        }
 
        $this->configureDefaultValue([$this, 'getRandomBytes']);
    }
 
    public function configureSecretLength($length)
    {
        if($length > 0)
        {
            $this->secretLength = (int)$length;
        }
    }
 
    public function encode($data)
    {
        return base64_encode($data);
    }
 
    public function decode($data)
    {
        return base64_decode($data);
    }
 
    public function getRandomBytes()
    {
        return Security\Random::getBytes($this->secretLength);
    }
}