crypto: arm64/aes-ccm - Merge finalization into en/decrypt asm helpers

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The C glue code already infers whether or not the current iteration is
the final one, by comparing walk.nbytes with walk.total. This means we
can easily inform the asm helpers of this as well, by conditionally
passing a pointer to the original IV, which is used in the finalization
of the MAC. This removes the need for a separate call into the asm code
to perform the finalization.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Ard Biesheuvel 2024-01-18 18:06:37 +01:00 • committed by Herbert Xu

parent 7150528849

commit f691d444f9

2 changed files with 29 additions and 38 deletions

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40

arch/arm64/crypto/aes-ce-ccm-core.S

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27

arch/arm64/crypto/aes-ce-ccm-glue.c

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