.. _doc_pages_pck_godot_encryption:

.. note::
    Godot Official documentation on PCK encryption `PCK Encryption <https://docs.godotengine.org/en/stable/contributing/development/compiling/compiling_with_script_encryption_key.html>`_.

Compiling Godot with Encryption Key
===================================


Follow these steps to create a **Godot Matrix** and configure it with a new AES-256 encryption key.


#. Visit the **Matrix Blueprints** page.
#. Click **Create Godot Matrix**.
#. Click the **cog icon** to configure the matrix.
    .. image:: ../img/modal.png
       :alt: Godot Modal
#. Enable **Environment Variables** by clicking the corresponding button.
    .. image:: ../img/enable.png
       :alt: Enable vars
#. Click the **Add +** button to add a new environment variable.
    .. image:: ../img/click_add.png
       :alt: Enable vars
#. Set the variable name to:
    ``SCRIPT_AES256_ENCRYPTION_KEY``

    .. image:: ../img/var_name.png
       :alt: Enable vars

#. Set the variable value to a **256-bit AES key**.

   You can generate this key using the "Generate a 256-bit AES key" button:

   .. image:: ../img/var_value.png
      :alt: Variable Value

   Or use `openssl` to generate it manually:

   .. code-block:: bash

      openssl rand -hex 32 > godot.gdkey

#. Copy the AES key value, since it will be used to export your game

Click **Save**.

.. warning::
   **Make sure to click Save!**
   If you don't, the variables will not be added.