[PATCH 00/12] SM3 library

[Ard Biesheuvel]

On Sat, 21 Mar 2026, at 05:09, Eric Biggers 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 
> sm3-lib-v1
>
> This series cleans up the kernel's existing SM3 hashing code:
>
> - First, it updates lib/crypto/sm3.c to implement the full SM3 instead
>   of just SM3's compression function.
>
> - Next, it adds a KUnit test suite for the new library API.
>
> - Next, it replaces the "sm3-generic" crypto_shash with a wrapper around
>   the new library API.
>
> - Finally, it accelerates the API using the existing SM3 assembly code
>   for arm64, riscv, and x86.  The architecture-specific crypto_shash
>   glue code for SM3 is no longer needed and is removed.
>
> This should look quite boring.  It's the same cleanup that I've already
> done for the other hash functions.
>
> Note: I don't recommend using SM3.  There also don't appear to be any
> immediate candidate users of the SM3 library other than crypto_shash.
>
> Still, this seems like the clear way to go.  It's simpler, and it gets
> the hash algorithms integrated in a consistent way.  We won't have to
> keep track of two quite different ways of doing things.  With KUnit the
> code becomes much easier to test and benchmark, as well.
>
> Eric Biggers (12):
>   crypto: sm3 - Fold sm3_init() into its caller
>   crypto: sm3 - Remove sm3_zero_message_hash and SM3_T[1-2]
>   crypto: sm3 - Rename CRYPTO_SM3_GENERIC to CRYPTO_SM3
>   lib/crypto: sm3: Add SM3 library API
>   lib/crypto: tests: Add KUnit tests for SM3
>   crypto: sm3 - Replace with wrapper around library
>   lib/crypto: arm64/sm3: Migrate optimized code into library
>   lib/crypto: riscv/sm3: Migrate optimized code into library
>   lib/crypto: x86/sm3: Migrate optimized code into library
>   crypto: sm3 - Remove sm3_base.h
>   crypto: sm3 - Remove the original "sm3_block_generic()"
>   crypto: sm3 - Remove 'struct sm3_state'
>

Acked-by: Ard Biesheuvel <ardb at kernel.org>