:py:mod:`cryptnoxpy.card.genuineness`
=====================================

.. py:module:: cryptnoxpy.card.genuineness

.. autoapi-nested-parse::

   Module containing check for verification of genuineness of a card



Module Contents
---------------


Functions
~~~~~~~~~

.. autoapisummary::

   cryptnoxpy.card.genuineness.check
   cryptnoxpy.card.genuineness.manufacturer_certificate
   cryptnoxpy.card.genuineness._manufacturer_public_keys
   cryptnoxpy.card.genuineness._check_manufacturer_certificate
   cryptnoxpy.card.genuineness._check_signature
   cryptnoxpy.card.genuineness._certificate_parts
   cryptnoxpy.card.genuineness._public_key
   cryptnoxpy.card.genuineness._manufacturer_certificate_data
   cryptnoxpy.card.genuineness._get_card_certificate
   cryptnoxpy.card.genuineness._manufacturer_signature



Attributes
~~~~~~~~~~

.. autoapisummary::

   cryptnoxpy.card.genuineness._ECDSA_SHA256
   cryptnoxpy.card.genuineness._MANUFACTURER_CERTIFICATE_URL
   cryptnoxpy.card.genuineness._PUBLIC_K1_OID


.. py:data:: _ECDSA_SHA256
   

   

.. py:data:: _MANUFACTURER_CERTIFICATE_URL
   :annotation: = https://verify.cryptnox.tech/certificates/

   

.. py:data:: _PUBLIC_K1_OID
   :annotation: = 2a8648ce3d030107034200

   

.. py:function:: check(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> str

   Check if the card in the reader is genuine Cryptnox product

   :param Connection connection: Connection to use for operation
   :param bool debug: Prints information about communication

   :return: Session public key to use opening secure channel
   :rtype: str

   :raise GenuineCheckException: The card is not genuine


.. py:function:: manufacturer_certificate(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> str

   Get the manufacturer certificate from the card in connection.

   :param Connection connection: Connection to use for operation
   :param bool debug: Prints information about communication

   :return: Manufacturer certificate read from the card
   :rtype: str


.. py:function:: _manufacturer_public_keys()


.. py:function:: _check_manufacturer_certificate(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> None


.. py:function:: _check_signature(message: bytes, public_key: cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey, signature_hex: str) -> bool


.. py:function:: _certificate_parts(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> List[str]


.. py:function:: _public_key(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> str


.. py:function:: _manufacturer_certificate_data(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> bytes


.. py:function:: _get_card_certificate(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> str


.. py:function:: _manufacturer_signature(connection: cryptnoxpy.connection.Connection, debug: bool = False) -> str