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authorEric Biggers <ebiggers@google.com>2018-11-16 17:26:30 -0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-11-20 14:26:56 +0800
commit16aae3595a9d41c97d983889b341c455779c2ecf (patch)
tree8a96f72547b997e6e889583ef64b9512edf7e857 /arch/arm/crypto/Kconfig
parent26609a21a9460145e37d90947ad957b358a05288 (diff)
crypto: arm/nhpoly1305 - add NEON-accelerated NHPoly1305
Add an ARM NEON implementation of NHPoly1305, an ε-almost-∆-universal hash function used in the Adiantum encryption mode. For now, only the NH portion is actually NEON-accelerated; the Poly1305 part is less performance-critical so is just implemented in C. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto/Kconfig')
-rw-r--r--arch/arm/crypto/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index 59c674cf08ef..a95322b59799 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -131,4 +131,9 @@ config CRYPTO_CHACHA20_NEON
select CRYPTO_BLKCIPHER
select CRYPTO_CHACHA20
+config CRYPTO_NHPOLY1305_NEON
+ tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
+ depends on KERNEL_MODE_NEON
+ select CRYPTO_NHPOLY1305
+
endif