diff options
| author | Determinant <[email protected]> | 2022-11-17 18:08:59 -0800 |
|---|---|---|
| committer | Determinant <[email protected]> | 2022-11-17 18:08:59 -0800 |
| commit | 8154806fe2fccacdc3dafaa68181a07bcf8d6c4c (patch) | |
| tree | f477e6a005599bb88c18db142c267b9297c6060b /frozen_deps/Cryptodome/Hash/cSHAKE256.py | |
| parent | be4dc086591c9bced04a507d127c83811c5700c4 (diff) | |
v0.1.7
Diffstat (limited to 'frozen_deps/Cryptodome/Hash/cSHAKE256.py')
| -rw-r--r-- | frozen_deps/Cryptodome/Hash/cSHAKE256.py | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/frozen_deps/Cryptodome/Hash/cSHAKE256.py b/frozen_deps/Cryptodome/Hash/cSHAKE256.py new file mode 100644 index 0000000..a5b8701 --- /dev/null +++ b/frozen_deps/Cryptodome/Hash/cSHAKE256.py @@ -0,0 +1,56 @@ +# =================================================================== +# +# 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 Cryptodome.Util._raw_api import c_size_t +from Cryptodome.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'') |