diff options
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/library/sys.rst | 11 | ||||
| -rw-r--r-- | Doc/license.rst | 29 | ||||
| -rw-r--r-- | Doc/whatsnew/3.4.rst | 1 |
3 files changed, 41 insertions, 0 deletions
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index 341764a..b885de8 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -594,9 +594,20 @@ always available. | :const:`imag` | multiplier used for the imaginary part of a | | | complex number | +---------------------+--------------------------------------------------+ + | :const:`algorithm` | name of the algorithm for hashing of str, bytes, | + | | and memoryview | + +---------------------+--------------------------------------------------+ + | :const:`hash_bits` | internal output size of the hash algorithm | + +---------------------+--------------------------------------------------+ + | :const:`seed_bits` | size of the seed key of the hash algorithm | + +---------------------+--------------------------------------------------+ + .. versionadded:: 3.2 + .. versionchanged: 3.4 + Added *algorithm*, *hash_bits* and *seed_bits* + .. data:: hexversion diff --git a/Doc/license.rst b/Doc/license.rst index 598ba86..5e6ed26 100644 --- a/Doc/license.rst +++ b/Doc/license.rst @@ -609,6 +609,35 @@ the following note:: http://creativecommons.org/publicdomain/zero/1.0/ +SipHash24 +--------- + +The file :file:`Python/pyhash.c` contains Marek Majkowski' implementation of +Dan Bernstein's SipHash24 algorithm. The contains the following note:: + + <MIT License> + Copyright (c) 2013 Marek Majkowski <marek@popcount.org> + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in + all copies or substantial portions of the Software. + </MIT License> + + Original location: + https://github.com/majek/csiphash/ + + Solution inspired by code from: + Samuel Neves (supercop/crypto_auth/siphash24/little) + djb (supercop/crypto_auth/siphash24/little2) + Jean-Philippe Aumasson (https://131002.net/siphash/siphash24.c) + + strtod and dtoa --------------- diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index f72f544..19b20bf 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -116,6 +116,7 @@ CPython implementation improvements: * :ref:`PEP 442: Safe object finalization <pep-442>` * :ref:`PEP 445: Configurable memory allocators <pep-445>` +* :pep:`456` Secure and interchangeable hash algorithm * Improve finalization of Python modules to avoid setting their globals to None, in most cases (:issue:`18214`). * A more efficient :mod:`marshal` format (:issue:`16475`). |