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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
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    :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.
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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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