On 27.05.2016 06:54, Raymond Hettinger wrote: > >> On May 25, 2016, at 3:29 AM, Christian Heimes <christ...@python.org> wrote: >> >> I have three hashing-related patches for Python 3.6 that are waiting for >> review. Altogether the three patches add ten new hash algorithms to the >> hashlib module: SHA3 (224, 256, 384, 512), SHAKE (SHA3 XOF 128, 256), >> BLAKE2 (blake2b, blake2s) and truncated SHA512 (224, 256). > > Do we really need ten? I don't think the standard library is the place to > offer all variants of hashing. And we should avoid getting in a cycle of > "this was just released by NIST" and "nobody uses that one anymore". Is any > one of them an emergent best practice (i.e. starting to be commonly used in > network protocols because it is better, faster, stronger, etc)? > > Your last message on https://bugs.python.org/issue16113 suggests that these > aren't essential and that there is room for debate about whether some of them > are standard-library worthy (i.e. we will have them around forever).
I can understand your eagerness to get this landed, since it's been 4 years since work started, but I think we should wait with the addition until OpenSSL has them: https://github.com/openssl/openssl/issues/439 The current patch is 1.2MB for SHA-3 - that's pretty heavy for just a few hash functions, which aren't in any wide spread use yet and probably won't be for quite a few years ahead. IMO, relying on OpenSSL is a better strategy than providing (and maintaining) our own compatibility versions. Until OpenSSL has them, people can use Björn's package: https://github.com/bjornedstrom/python-sha3 Perhaps you could join forces with Björn to create a standard SHA-3 standalone package on PyPI based on your two variants which we could recommend to people in the docs ?! -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Experts (#1, May 27 2016) >>> Python Projects, Coaching and Consulting ... http://www.egenix.com/ >>> Python Database Interfaces ... http://products.egenix.com/ >>> Plone/Zope Database Interfaces ... http://zope.egenix.com/ ________________________________________________________________________ ::: We implement business ideas - efficiently in both time and costs ::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ http://www.malemburg.com/ _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
