crypto: arm - add support for SHA1 using ARMv8 Crypto Instructions

This implements the SHA1 secure hash algorithm using the AArch32
versions of the ARMv8 Crypto Extensions for SHA1.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index 66fe82857e99..d7bc10beb8ac 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -27,6 +27,16 @@ config CRYPTO_SHA1_ARM_NEON
           using optimized ARM NEON assembly, when NEON instructions are
           available.
 
+config CRYPTO_SHA1_ARM_CE
+        tristate "SHA1 digest algorithm (ARM v8 Crypto Extensions)"
+        depends on KERNEL_MODE_NEON
+        select CRYPTO_SHA1_ARM
+        select CRYPTO_SHA1
+        select CRYPTO_HASH
+        help
+          SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
+          using special ARMv8 Crypto Extensions.
+
 config CRYPTO_SHA512_ARM_NEON
         tristate "SHA384 and SHA512 digest algorithm (ARM NEON)"
         depends on KERNEL_MODE_NEON