arm64/crypto: SHA-1 using ARMv8 Crypto Extensions

This patch adds support for the SHA-1 Secure Hash Algorithm for CPUs that
have support for the SHA-1 part of the ARM v8 Crypto Extensions.

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

1 files changed, 16 insertions, 0 deletions

diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
new file mode 100644
index 000000000000..7956881b5986
--- /dev/null
+++ b/arch/arm64/crypto/Kconfig
@@ -0,0 +1,16 @@
+
+menuconfig ARM64_CRYPTO
+        bool "ARM64 Accelerated Cryptographic Algorithms"
+        depends on ARM64
+        help
+          Say Y here to choose from a selection of cryptographic algorithms
+          implemented using ARM64 specific CPU features or instructions.
+
+if ARM64_CRYPTO
+
+config CRYPTO_SHA1_ARM64_CE
+        tristate "SHA-1 digest algorithm (ARMv8 Crypto Extensions)"
+        depends on ARM64 && KERNEL_MODE_NEON
+        select CRYPTO_HASH
+
+endif