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crypto: aegis128 - provide a SIMD implementation based on NEON intrinsics

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Provide an accelerated implementation of aegis128 by wiring up the
SIMD hooks in the generic driver to an implementation based on NEON
intrinsics, which can be compiled to both ARM and arm64 code.

This results in a performance of 2.2 cycles per byte on Cortex-A53,
which is a performance increase of ~11x compared to the generic
code.

Reviewed-by: Ondrej Mosnacek <[email protected]>
Signed-off-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Ard Biesheuvel 2019-07-03 10:55:11 +02:00 • committed by Herbert Xu
commit ecc8bc81f2
4 changed files with 208 additions and 0 deletions
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5
crypto/Kconfig
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@ -306,6 +306,11 @@ config CRYPTO_AEGIS128
help
Support for the AEGIS-128 dedicated AEAD algorithm.
config CRYPTO_AEGIS128_SIMD
bool "Support SIMD acceleration for AEGIS-128"
depends on CRYPTO_AEGIS128 && ((ARM || ARM64) && KERNEL_MODE_NEON)
default y
config CRYPTO_AEGIS128_AESNI_SSE2
tristate "AEGIS-128 AEAD algorithm (x86_64 AESNI+SSE2 implementation)"
depends on X86 && 64BIT