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The :mod:`nacl.hash` module exposes one-shot interfaces
for libsodium selected hash primitives and the constants needed
for their usage.
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Hashes ``message`` with SHA256.
:param message: The message to hash.
:type message: bytes
:param encoder: A class that is able to encode the hashed message.
:returns: The hashed message.
:rtype: bytes
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Hashes ``message`` with SHA512.
:param message: The message to hash.
:type message: bytes
:param encoder: A class that is able to encode the hashed message.
:returns: The hashed message.
:rtype: bytes
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Hashes ``data`` with blake2b.
:param data: the digest input byte sequence
:type data: bytes
:param digest_size: the requested digest size; must be at most
:const:`BLAKE2B_BYTES_MAX`;
the default digest size is
:const:`BLAKE2B_BYTES`
:type digest_size: int
:param key: the key to be set for keyed MAC/PRF usage; if set, the key
must be at most :data:`~nacl.hash.BLAKE2B_KEYBYTES_MAX` long
:type key: bytes
:param salt: an initialization salt at most
:const:`BLAKE2B_SALTBYTES` long;
it will be zero-padded if needed
:type salt: bytes
:param person: a personalization string at most
:const:`BLAKE2B_PERSONALBYTES` long;
it will be zero-padded if needed
:type person: bytes
:param encoder: the encoder to use on returned digest
:type encoder: class
:returns: The hashed message.
:rtype: bytes
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Computes a keyed MAC of ``message`` using the short-input-optimized
siphash-2-4 construction.
:param message: The message to hash.
:type message: bytes
:param key: the message authentication key for the siphash MAC construct
:type key: bytes(:const:`SIPHASH_KEYBYTES`)
:param encoder: A class that is able to encode the hashed message.
:returns: The hashed message.
:rtype: bytes(:const:`SIPHASH_BYTES`)
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Computes a keyed MAC of ``message`` using the 128 bit variant of the
siphash-2-4 construction.
:param message: The message to hash.
:type message: bytes
:param key: the message authentication key for the siphash MAC construct
:type key: bytes(:const:`SIPHASHX_KEYBYTES`)
:param encoder: A class that is able to encode the hashed message.
:returns: The hashed message.
:rtype: bytes(:const:`SIPHASHX_BYTES`)
:raises nacl.exceptions.UnavailableError: If called when using a
minimal build of libsodium.
.. versionadded:: 1.2
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