Расшифровка MD5 при авторизации в UCP

[N1kS]

Мод шифрует пароли MD5 способом. Как сделать чтобы при авторизации в UCP этот пароль расшифровывался ?

<?
    session_start();
    if($_POST['captcha'] == $_SESSION['rand_code'])
    {   
            $_SESSION['server'] = $_POST['server'];
            require_once('../core/connect.php');
            $password = $mysqli->real_escape_string(stripslashes(htmlspecialchars(trim($_POST['password']))));
            $name = $mysqli->real_escape_string(stripslashes(htmlspecialchars(trim($_POST['username']))));
            $key = $mysqli->real_escape_string(stripslashes(htmlspecialchars(trim($_POST['code']))));
            
            $mysqli->set_charset("utf-8");
            $sql = "SELECT `pKey`, `id`, `pSecCode` FROM `accounts` WHERE `Name` = '{$name}'";
            $result = $mysqli->query($sql);

            if($result->num_rows == 1)
            {   
                $result->data_seek(0);
                $account = $result->fetch_assoc();
                $dbpassword = $account['pKey'];
                $dbkey = $account['pSecCode'];
                $id = $account['id'];
                if($password == $dbpassword)
                {           
                    if($dbkey > 0)
                    {
                        if($dbkey == $key)
                        {
                            $_SESSION['account_name'] = $name;
                            $_SESSION['account_id'] = $id;
                            $_SESSION['account_logged'] = 'try';
                            header("Location: /account");
                        }
                        else
                        {
                            $_SESSION['error'] = 3;               
                            header("Location: /login");
                        }
                    }
                    else
                    {
                        $_SESSION['account_name'] = $name;
                        $_SESSION['account_id'] = $id;
                        $_SESSION['account_logged'] = 'try';
                        header("Location: /account");
                    }
                    
                }
                else
                {
                    $_SESSION['error'] = 2;
                    header("Location: /login");
                }
            }
            else
            {
                $_SESSION['error'] = 1;
                   header("Location: /login");
            }
            $result->close();
            $mysqli->close();
    }
    else
    {
        $_SESSION['error'] = 4;
           header("Location: /login");
    }
?>