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« | j d d « }| rt d t | « z « t ||||dt d« S )aµ Create a new KMAC256 object.
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Args:
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key (bytes/bytearray/memoryview):
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The key to use to compute the MAC.
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It must be at least 256 bits long (32 bytes).
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data (bytes/bytearray/memoryview):
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Optional. The very first chunk of the message to authenticate.
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It is equivalent to an early call to :meth:`KMAC_Hash.update`.
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mac_len (integer):
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Optional. The size of the authentication tag, in bytes.
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Default is 64. Minimum is 8.
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custom (bytes/bytearray/memoryview):
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Optional. A customization byte string (``S`` in SP 800-185).
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Returns:
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A :class:`KMAC_Hash` hash object
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