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diff --git a/frozen_deps/Cryptodome/Hash/TupleHash256.py b/frozen_deps/Cryptodome/Hash/TupleHash256.py
new file mode 100644
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+++ b/frozen_deps/Cryptodome/Hash/TupleHash256.py
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+# ===================================================================
+#
+# Copyright (c) 2021, Legrandin <[email protected]>
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+# ===================================================================
+
+from . import cSHAKE256
+from .TupleHash128 import TupleHash
+
+
+def new(**kwargs):
+ """Create a new TupleHash256 object.
+
+ Args:
+ digest_bytes (integer):
+ Optional. The size of the digest, in bytes.
+ Default is 64. Minimum is 8.
+ digest_bits (integer):
+ Optional and alternative to ``digest_bytes``.
+ The size of the digest, in bits (and in steps of 8).
+ Default is 512. Minimum is 64.
+ custom (bytes):
+ Optional.
+ A customization bytestring (``S`` in SP 800-185).
+
+ :Return: A :class:`TupleHash` object
+ """
+
+ digest_bytes = kwargs.pop("digest_bytes", None)
+ digest_bits = kwargs.pop("digest_bits", None)
+ if None not in (digest_bytes, digest_bits):
+ raise TypeError("Only one digest parameter must be provided")
+ if (None, None) == (digest_bytes, digest_bits):
+ digest_bytes = 64
+ if digest_bytes is not None:
+ if digest_bytes < 8:
+ raise ValueError("'digest_bytes' must be at least 8")
+ else:
+ if digest_bits < 64 or digest_bits % 8:
+ raise ValueError("'digest_bytes' must be at least 64 "
+ "in steps of 8")
+ digest_bytes = digest_bits // 8
+
+ custom = kwargs.pop("custom", b'')
+
+ if kwargs:
+ raise TypeError("Unknown parameters: " + str(kwargs))
+
+ return TupleHash(custom, cSHAKE256, digest_bytes)