aboutsummaryrefslogtreecommitdiff
path: root/crypto/Kconfig
diff options
context:
space:
mode:
authorMegha Dey <megha.dey@linux.intel.com>2016-06-27 10:20:05 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2016-06-28 16:06:37 +0800
commit026bb8aaf5162b881fdd56f12fa8a6f5a052e097 (patch)
tree781c21692ba4529fe8bfd8966ba728845fa1c558 /crypto/Kconfig
parent8c603ff28659e65fdae960cd3f952ec168fc773a (diff)
downloadlinux-stericsson-026bb8aaf5162b881fdd56f12fa8a6f5a052e097.tar.gz
crypto: sha512-mb - Enable SHA512 multibuffer support
Add the config CRYPTO_SHA512_MB which will enable the computation using the SHA512 multi-buffer algorithm. Signed-off-by: Megha Dey <megha.dey@linux.intel.com> Reviewed-by: Fenghua Yu <fenghua.yu@intel.com> Reviewed-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/Kconfig')
-rw-r--r--crypto/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index d8cc0f085278..62fcbb923753 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -720,6 +720,22 @@ config CRYPTO_SHA256_MB
lanes remain unfilled, a flush operation will be initiated to
process the crypto jobs, adding a slight latency.
+config CRYPTO_SHA512_MB
+ tristate "SHA512 digest algorithm (x86_64 Multi-Buffer, Experimental)"
+ depends on X86 && 64BIT
+ select CRYPTO_SHA512
+ select CRYPTO_HASH
+ select CRYPTO_MCRYPTD
+ help
+ SHA-512 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
+ using multi-buffer technique. This algorithm computes on
+ multiple data lanes concurrently with SIMD instructions for
+ better throughput. It should not be enabled by default but
+ used when there is significant amount of work to keep the keep
+ the data lanes filled to get performance benefit. If the data
+ lanes remain unfilled, a flush operation will be initiated to
+ process the crypto jobs, adding a slight latency.
+
config CRYPTO_SHA256
tristate "SHA224 and SHA256 digest algorithm"
select CRYPTO_HASH