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arm/crypto: Add optimized AES and SHA1 routines

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Add assembler versions of AES and SHA1 for ARM platforms.  This has provided
up to a 50% improvement in IPsec/TCP throughout for tunnels using AES128/SHA1.

Platform   CPU SPeed    Endian   Before (bps)   After (bps)   Improvement

IXP425      533 MHz      big     11217042        15566294        ~38%
KS8695      166 MHz     little    3828549         5795373        ~51%

Signed-off-by: David McCullough <ucdevel@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
David McCullough
2012-09-07 04:17:02 +08:00
committed by Herbert Xu
parent 956c203c5e
commit f0be44f4fb
7 changed files with 1945 additions and 0 deletions
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33
crypto/Kconfig
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@ -433,6 +433,15 @@ config CRYPTO_SHA1_SSSE3
using Supplemental SSE3 (SSSE3) instructions or Advanced Vector
Extensions (AVX), when available.
config CRYPTO_SHA1_ARM
tristate "SHA1 digest algorithm (ARM-asm)"
depends on ARM
select CRYPTO_SHA1
select CRYPTO_HASH
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using optimized ARM assembler.
config CRYPTO_SHA256
tristate "SHA224 and SHA256 digest algorithm"
select CRYPTO_HASH
@ -590,6 +599,30 @@ config CRYPTO_AES_NI_INTEL
ECB, CBC, LRW, PCBC, XTS. The 64 bit version has additional
acceleration for CTR.
config CRYPTO_AES_ARM
tristate "AES cipher algorithms (ARM-asm)"
depends on ARM
select CRYPTO_ALGAPI
select CRYPTO_AES
help
Use optimized AES assembler routines for ARM platforms.
AES cipher algorithms (FIPS-197). AES uses the Rijndael
algorithm.
Rijndael appears to be consistently a very good performer in
both hardware and software across a wide range of computing
environments regardless of its use in feedback or non-feedback
modes. Its key setup time is excellent, and its key agility is
good. Rijndael's very low memory requirements make it very well
suited for restricted-space environments, in which it also
demonstrates excellent performance. Rijndael's operations are
among the easiest to defend against power and timing attacks.
The AES specifies three key sizes: 128, 192 and 256 bits
See <http://csrc.nist.gov/encryption/aes/> for more information.
config CRYPTO_ANUBIS
tristate "Anubis cipher algorithm"
select CRYPTO_ALGAPI