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====================================
Raw Generic Hash (Blake2b) Functions
====================================
The nacl library comes with blake hashing libraries.
More information on Blake can be found here:
https://blake2.net
The blake2b hashing algorithm is a keyed hashing algorithm, which allows
for a key to be associated with a hash. Blake can be executed with or without
a key.
With a key (they key can should be between 16 and 64 bytes):
.. code-block:: python
import libnacl
msg = 'Is there someone else up there we could talk to?'
key = libnacl.randombytes(32)
h_msg = libnacl.crypto_generichash(msg, key)
Without a key:
.. code-block:: python
import libnacl
msg = 'Is there someone else up there we could talk to?'
h_msg = libnacl.crypto_generichash(msg)
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