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gh-99108: Mention HACL\* in the hashlib docs. #105634

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Jun 10, 2023
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gh-99108: Mention HACL\* in the hashlib docs. #105634

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11 changes: 6 additions & 5 deletions Doc/library/hashlib.rst
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Expand Up @@ -93,6 +93,11 @@ accessible by name via :func:`new`. See :data:`algorithms_available`.
.. versionchanged:: 3.9
Hashlib now uses SHA3 and SHAKE from OpenSSL if it provides it.

.. versionchanged:: 3.12
For any of the MD5, SHA1, SHA2, or SHA3 algorithms that the linked
OpenSSL does not provide we fall back to a verified implementation from
the `HACL\* project`_.

Usage
-----

Expand Down Expand Up @@ -205,11 +210,6 @@ A hash object has the following methods:
concatenation of all the arguments: ``m.update(a); m.update(b)`` is
equivalent to ``m.update(a+b)``.

.. versionchanged:: 3.1
The Python GIL is released to allow other threads to run while hash
updates on data larger than 2047 bytes is taking place when using hash
algorithms supplied by OpenSSL.


.. method:: hash.digest()

Expand Down Expand Up @@ -811,6 +811,7 @@ Domain Dedication 1.0 Universal:
.. _Attacks on cryptographic hash algorithms: https://en.wikipedia.org/wiki/Cryptographic_hash_function#Attacks_on_cryptographic_hash_algorithms
.. _the FIPS 180-4 standard: https://csrc.nist.gov/publications/detail/fips/180/4/final
.. _the FIPS 202 standard: https://csrc.nist.gov/publications/detail/fips/202/final
.. _HACL\* project: https://github.com/hacl-star/hacl-star


.. _hashlib-seealso:
Expand Down