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� KMAC_Hashz[A KMAC hash object.
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data (bytes/bytearray/memoryview): The next chunk of the message to
authenticate.
z8You can only call 'digest' or 'hexdigest' on this object)r � TypeErrorr r )r r s r r zKMAC_Hash.update= s9 � � �9� X�� V�W�W� W� � ���D�!�!�!�� r" c �� � | j sS| j � t | j dz � � � � | j � | j � � | _ | j S )z�Return the **binary** (non-printable) MAC tag of the message.
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�d�.>��.B� C� C� D� D� D� � �)�)�$�*:�;�;�D�I��y�r" c �~ � d� d� t | � � � � � D � � � � S )z�Return the **printable** MAC tag of the message.
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is valid.
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mac_tag (bytes/bytearray/memoryview): the expected MAC of the message.
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ValueError: if the MAC does not match. It means that the message
has been tampered with or that the MAC key is incorrect.
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ValueError)r �mac_tag�secret�mac1�mac2s r �verifyzKMAC_Hash.verifya ss � � "�"�%�%���|�F�W� ,�-�-���|�F�T�[�[�]�]� 2�3�3�� �;�;�=�=�D�K�K�M�M� )� )� � /�0�0� 0� *� )r" c �d � | � t t |� � � � � � dS )an Verify that a given **printable** MAC (computed by another party)
is valid.
Args:
hex_mac_tag (string): the expected MAC of the message, as a hexadecimal string.
Raises:
ValueError: if the MAC does not match. It means that the message
has been tampered with or that the MAC key is incorrect.
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Args:
key (bytes/bytearray/memoryview):
The key to use to compute the MAC.
It must be at least 128 bits long (16 bytes).
data (bytes/bytearray/memoryview):
Optional. The very first chunk of the message to authenticate.
It is equivalent to an early call to :meth:`KMAC_Hash.update`.
mac_len (integer):
Optional. The size of the authentication tag, in bytes.
Default is 64. Minimum is 8.
custom (bytes/bytearray/memoryview):
Optional. A customization byte string (``S`` in SP 800-185).
Returns:
A :class:`KMAC_Hash` hash object
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