Commit f569ca16 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Herbert Xu
Browse files

crypto: arm64/poly1305 - incorporate OpenSSL/CRYPTOGAMS NEON implementation 

This is a straight import of the OpenSSL/CRYPTOGAMS Poly1305 implementation
for NEON authored by Andy Polyakov, and contributed by him to the OpenSSL
project. The file 'poly1305-armv8.pl' is taken straight from this upstream
GitHub repository [0] at commit ec55a08dc0244ce570c4fc7cade330c60798952f,
and already contains all the changes required to build it as part of a
Linux kernel module.

[0] https://github.com/dot-asm/cryptogams



Co-developed-by: default avatarAndy Polyakov <appro@cryptogams.org>
Signed-off-by: default avatarAndy Polyakov <appro@cryptogams.org>
Signed-off-by: default avatarArd Biesheuvel <ardb@kernel.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f0e89bcf

arch/arm64/crypto/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -106,6 +106,12 @@ config CRYPTO_CHACHA20_NEON 
	select CRYPTO_LIB_CHACHA_GENERIC

	select CRYPTO_ARCH_HAVE_LIB_CHACHA



config CRYPTO_POLY1305_NEON

	tristate "Poly1305 hash function using scalar or NEON instructions"

	depends on KERNEL_MODE_NEON

	select CRYPTO_HASH

	select CRYPTO_ARCH_HAVE_LIB_POLY1305



config CRYPTO_NHPOLY1305_NEON

	tristate "NHPoly1305 hash function using NEON instructions (for Adiantum)"

	depends on KERNEL_MODE_NEON

arch/arm64/crypto/Makefile

+9 −1
Original line number Diff line number Diff line
@@ -50,6 +50,10 @@ sha512-arm64-y := sha512-glue.o sha512-core.o 
obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o

chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o



obj-$(CONFIG_CRYPTO_POLY1305_NEON) += poly1305-neon.o

poly1305-neon-y := poly1305-core.o poly1305-glue.o

AFLAGS_poly1305-core.o += -Dpoly1305_init=poly1305_init_arm64



obj-$(CONFIG_CRYPTO_NHPOLY1305_NEON) += nhpoly1305-neon.o

nhpoly1305-neon-y := nh-neon-core.o nhpoly1305-neon-glue.o
@@ -68,11 +72,15 @@ ifdef REGENERATE_ARM64_CRYPTO 
quiet_cmd_perlasm = PERLASM $@

      cmd_perlasm = $(PERL) $(<) void $(@)



$(src)/poly1305-core.S_shipped: $(src)/poly1305-armv8.pl

	$(call cmd,perlasm)



$(src)/sha256-core.S_shipped: $(src)/sha512-armv8.pl

	$(call cmd,perlasm)



$(src)/sha512-core.S_shipped: $(src)/sha512-armv8.pl

	$(call cmd,perlasm)



endif



clean-files += sha256-core.S sha512-core.S
 
clean-files += poly1305-core.S sha256-core.S sha512-core.S

arch/arm64/crypto/poly1305-armv8.pl

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arch/arm64/crypto/poly1305-core.S_shipped

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+835 −0

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arch/arm64/crypto/poly1305-glue.c

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+237 −0

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