linux-kernel - Re: [PATCH 00/17] SHA-3 library

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Message-ID: <CAMj1kXEh=nS+pFgJUm5Vsyk1fMvY0dJNjLzA90Zj4AQPrD5ZYg@mail.gmail.com>
Date: Wed, 22 Oct 2025 12:13:22 +0200
From: Ard Biesheuvel <ardb@...nel.org>
To: Eric Biggers <ebiggers@...nel.org>
Cc: linux-crypto@...r.kernel.org, David Howells <dhowells@...hat.com>, 
	"Jason A . Donenfeld" <Jason@...c4.com>, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-s390@...r.kernel.org
Subject: Re: [PATCH 00/17] SHA-3 library

On Mon, 20 Oct 2025 at 02:53, Eric Biggers <ebiggers@...nel.org> wrote:
>
> This series is targeting libcrypto-next.  It can also be retrieved from:
>
>     git fetch https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git sha3-lib-v1
>
> This series builds on the first 5 patches of David's v6 series
> (https://lore.kernel.org/r/20251017144311.817771-1-dhowells@redhat.com),
> which I've included unmodified as the initial patches.  The remaining
> patches improve the SHA-3 library, for example by simplifying the API
> and migrating the existing arm64 and s390-optimized SHA-3 code into the
> library.  The last patch reimplements the sha3-* crypto_shash algorithms
> on top of the library.
>
> If the s390 folks could re-test the s390 optimized SHA-3 code, that
> would be helpful.  QEMU doesn't support the instructions it uses.
>
> David Howells (5):
>   s390/sha3: Rename conflicting functions
>   arm64/sha3: Rename conflicting functions
>   lib/crypto: Add SHA3-224, SHA3-256, SHA3-384, SHA3-512, SHAKE128,
>     SHAKE256
>   lib/crypto: Move the SHA3 Iota transform into the single round
>     function
>   lib/crypto: Add SHA3 kunit tests
>
> Eric Biggers (12):
>   lib/crypto: sha3: Fix libsha3 build condition
>   lib/crypto: sha3: Use appropriate conversions in
>     sha3_keccakf_generic()
>   lib/crypto: sha3: Drop unfinished SHAKE support from
>     gen-hash-testvecs.py
>   lib/crypto: sha3: Consistently use EXPORT_SYMBOL_GPL
>   lib/crypto: sha3: Replace redundant ad-hoc test with FIPS test
>   lib/crypto: sha3: Simplify the API
>   lib/crypto: sha3: Document one-shot functions in header and improve
>     docs
>   crypto: arm64/sha3 - Update sha3_ce_transform() to prepare for library
>   lib/crypto: arm64/sha3: Migrate optimized code into library
>   lib/crypto: s390/sha3: Migrate optimized code into library
>   crypto: jitterentropy - use default sha3 implementation
>   crypto: sha3 - Reimplement using library API
>

Reviewed-by: Ard Biesheuvel <ardb@...nel.org>