[issue47125] Explore hashlib use of the Windows Crypto API NG

[Dong-hee Na]

Change by Dong-hee Na :


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nosy: +corona10

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[issue47125] Explore hashlib use of the Windows Crypto API NG

[Steve Dower]

Steve Dower  added the comment:

Did a basic test (with timeit and a work-internal library I already have) and 
the native functionality is *slightly* faster than OpenSSL.

But I think it's worthwhile anyway, to help reduce our dependency on OpenSSL.

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[issue47125] Explore hashlib use of the Windows Crypto API NG

[Gregory P. Smith]

New submission from Gregory P. Smith :

https://docs.microsoft.com/en-us/windows/win32/seccng/creating-a-hash-with-cng

See if these are worthwhile vs using OpenSSL for the hashlib algorithms it 
supports.  OS APIs can in theory take better advantage of HW acceleration for 
performance.  Verify this on supported architectures.  Regardless it would 
allow some things to be fast if someone wanted to use a build without OpenSSL.

I'm not a Windows or Microsoft user.  I'm filing this for completeness, someone 
else would need to do the work.

similar macOS issue: https://bugs.python.org/issue47124
similar Linux issue: https://bugs.python.org/issue47102

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components: Extension Modules, Windows
messages: 416033
nosy: gregory.p.smith, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Explore hashlib use of the Windows Crypto API NG
type: performance

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