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| author | Sami Tolvanen <samitolvanen@google.com> | 2015-04-03 10:03:40 (GMT) |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-03 10:03:40 (GMT) |
| commit | f2f770d74a8d12265e023f2792ad2eb996cabe1a (patch) | |
| tree | 063649f19b656ad05f618da8fcce992a1d58d2ab /arch/arm/crypto/Kconfig | |
| parent | 87b1675634e1e9f1570445c55604204771ac9078 (diff) | |
| download | linux-f2f770d74a8d12265e023f2792ad2eb996cabe1a.tar.xz | |
crypto: arm/sha256 - Add optimized SHA-256/224
Add Andy Polyakov's optimized assembly and NEON implementations for
SHA-256/224.
The sha256-armv4.pl script for generating the assembly code is from
OpenSSL commit 51f8d095562f36cdaa6893597b5c609e943b0565.
Compared to sha256-generic these implementations have the following
tcrypt speed improvements on Motorola Nexus 6 (Snapdragon 805):
bs b/u sha256-neon sha256-asm
16 16 x1.32 x1.19
64 16 x1.27 x1.15
64 64 x1.36 x1.20
256 16 x1.22 x1.11
256 64 x1.36 x1.19
256 256 x1.59 x1.23
1024 16 x1.21 x1.10
1024 256 x1.65 x1.23
1024 1024 x1.76 x1.25
2048 16 x1.21 x1.10
2048 256 x1.66 x1.23
2048 1024 x1.78 x1.25
2048 2048 x1.79 x1.25
4096 16 x1.20 x1.09
4096 256 x1.66 x1.23
4096 1024 x1.79 x1.26
4096 4096 x1.82 x1.26
8192 16 x1.20 x1.09
8192 256 x1.67 x1.23
8192 1024 x1.80 x1.26
8192 4096 x1.85 x1.28
8192 8192 x1.85 x1.27
Where bs refers to block size and b/u to bytes per update.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Cc: Andy Polyakov <appro@openssl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto/Kconfig')
| -rw-r--r-- | arch/arm/crypto/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig index d63f319..458729d 100644 --- a/arch/arm/crypto/Kconfig +++ b/arch/arm/crypto/Kconfig @@ -46,6 +46,13 @@ config CRYPTO_SHA2_ARM_CE SHA-256 secure hash standard (DFIPS 180-2) implemented using special ARMv8 Crypto Extensions. +config CRYPTO_SHA256_ARM + tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)" + select CRYPTO_HASH + help + SHA-256 secure hash standard (DFIPS 180-2) implemented + using optimized ARM assembler and NEON, when available. + config CRYPTO_SHA512_ARM_NEON tristate "SHA384 and SHA512 digest algorithm (ARM NEON)" depends on KERNEL_MODE_NEON |