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authorJussi Kivilinna <jussi.kivilinna@iki.fi>2014-07-29 17:15:24 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-08-02 08:51:50 +0100
commitc8611d712ad01289a0b6a83cc93bba3a1ef4e990 (patch)
treef3988ae6af0e0719fe501cbe3f040c41a917f345 /crypto
parent604682551aa511e00e57706ad5d9fcf955ee0323 (diff)
downloadop-kernel-dev-c8611d712ad01289a0b6a83cc93bba3a1ef4e990.zip
op-kernel-dev-c8611d712ad01289a0b6a83cc93bba3a1ef4e990.tar.gz
ARM: 8120/1: crypto: sha512: add ARM NEON implementation
This patch adds ARM NEON assembly implementation of SHA-512 and SHA-384 algorithms. tcrypt benchmark results on Cortex-A8, sha512-generic vs sha512-neon-asm: block-size bytes/update old-vs-new 16 16 2.99x 64 16 2.67x 64 64 3.00x 256 16 2.64x 256 64 3.06x 256 256 3.33x 1024 16 2.53x 1024 256 3.39x 1024 1024 3.52x 2048 16 2.50x 2048 256 3.41x 2048 1024 3.54x 2048 2048 3.57x 4096 16 2.49x 4096 256 3.42x 4096 1024 3.56x 4096 4096 3.59x 8192 16 2.48x 8192 256 3.42x 8192 1024 3.56x 8192 4096 3.60x 8192 8192 3.60x Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index a379dad..749b1e0 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -600,6 +600,21 @@ config CRYPTO_SHA512_SPARC64
SHA-512 secure hash standard (DFIPS 180-2) implemented
using sparc64 crypto instructions, when available.
+config CRYPTO_SHA512_ARM_NEON
+ tristate "SHA384 and SHA512 digest algorithm (ARM NEON)"
+ depends on ARM && KERNEL_MODE_NEON && !CPU_BIG_ENDIAN
+ select CRYPTO_SHA512
+ select CRYPTO_HASH
+ help
+ SHA-512 secure hash standard (DFIPS 180-2) implemented
+ using ARM NEON instructions, when available.
+
+ This version of SHA implements a 512 bit hash with 256 bits of
+ security against collision attacks.
+
+ This code also includes SHA-384, a 384 bit hash with 192 bits
+ of security against collision attacks.
+
config CRYPTO_TGR192
tristate "Tiger digest algorithms"
select CRYPTO_HASH
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