AlkantarClanX12
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# Copyright (c) 2021, Legrandin <helderijs@gmail.com>
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# ===================================================================
from Crypto.Util._raw_api import c_size_t
from Crypto.Hash.cSHAKE128 import cSHAKE_XOF
def _new(data, custom, function):
# Use Keccak[512]
return cSHAKE_XOF(data, custom, 512, function)
def new(data=None, custom=None):
"""Return a fresh instance of a cSHAKE256 object.
Args:
data (bytes/bytearray/memoryview):
The very first chunk of the message to hash.
It is equivalent to an early call to :meth:`update`.
Optional.
custom (bytes):
Optional.
A customization bytestring (``S`` in SP 800-185).
:Return: A :class:`cSHAKE_XOF` object
"""
# Use Keccak[512]
return cSHAKE_XOF(data, custom, 512, b'')