linux/arch/arm64/crypto/Kconfig
Ard Biesheuvel c77da4867c crypto: arm64/chacha - depend on generic chacha library instead of crypto driver
Depend on the generic ChaCha library routines instead of pulling in the
generic ChaCha skcipher driver, which is more than we need, and makes
managing the dependencies between the generic library, generic driver,
accelerated library and driver more complicated.

While at it, drop the logic to prefer the scalar code on short inputs.
Turning the NEON on and off is cheap these days, and one major use case
for ChaCha20 is ChaCha20-Poly1305, which is guaranteed to hit the scalar
path upon every invocation  (when doing the Poly1305 nonce generation)

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-11-17 09:02:39 +08:00

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# SPDX-License-Identifier: GPL-2.0
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_SHA256_ARM64
tristate "SHA-224/SHA-256 digest algorithm for arm64"
select CRYPTO_HASH
config CRYPTO_SHA512_ARM64
tristate "SHA-384/SHA-512 digest algorithm for arm64"
select CRYPTO_HASH
config CRYPTO_SHA1_ARM64_CE
tristate "SHA-1 digest algorithm (ARMv8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SHA1
config CRYPTO_SHA2_ARM64_CE
tristate "SHA-224/SHA-256 digest algorithm (ARMv8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SHA256_ARM64
config CRYPTO_SHA512_ARM64_CE
tristate "SHA-384/SHA-512 digest algorithm (ARMv8 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SHA512_ARM64
config CRYPTO_SHA3_ARM64
tristate "SHA3 digest algorithm (ARMv8.2 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SHA3
config CRYPTO_SM3_ARM64_CE
tristate "SM3 digest algorithm (ARMv8.2 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_SM3
config CRYPTO_SM4_ARM64_CE
tristate "SM4 symmetric cipher (ARMv8.2 Crypto Extensions)"
depends on KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_SM4
config CRYPTO_GHASH_ARM64_CE
tristate "GHASH/AES-GCM using ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_HASH
select CRYPTO_GF128MUL
select CRYPTO_LIB_AES
config CRYPTO_CRCT10DIF_ARM64_CE
tristate "CRCT10DIF digest algorithm using PMULL instructions"
depends on KERNEL_MODE_NEON && CRC_T10DIF
select CRYPTO_HASH
config CRYPTO_AES_ARM64
tristate "AES core cipher using scalar instructions"
select CRYPTO_AES
config CRYPTO_AES_ARM64_CE
tristate "AES core cipher using ARMv8 Crypto Extensions"
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_LIB_AES
config CRYPTO_AES_ARM64_CE_CCM
tristate "AES in CCM mode using ARMv8 Crypto Extensions"
depends on ARM64 && KERNEL_MODE_NEON
select CRYPTO_ALGAPI
select CRYPTO_AES_ARM64_CE
select CRYPTO_AEAD
select CRYPTO_LIB_AES
config CRYPTO_AES_ARM64_CE_BLK
tristate "AES in ECB/CBC/CTR/XTS modes using ARMv8 Crypto Extensions"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_AES_ARM64_CE
select CRYPTO_AES_ARM64
select CRYPTO_SIMD
config CRYPTO_AES_ARM64_NEON_BLK
tristate "AES in ECB/CBC/CTR/XTS modes using NEON instructions"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_AES_ARM64
select CRYPTO_LIB_AES
select CRYPTO_SIMD
config CRYPTO_CHACHA20_NEON
tristate "ChaCha20, XChaCha20, and XChaCha12 stream ciphers using NEON instructions"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_LIB_CHACHA_GENERIC
config CRYPTO_NHPOLY1305_NEON
tristate "NHPoly1305 hash function using NEON instructions (for Adiantum)"
depends on KERNEL_MODE_NEON
select CRYPTO_NHPOLY1305
config CRYPTO_AES_ARM64_BS
tristate "AES in ECB/CBC/CTR/XTS modes using bit-sliced NEON algorithm"
depends on KERNEL_MODE_NEON
select CRYPTO_SKCIPHER
select CRYPTO_AES_ARM64_NEON_BLK
select CRYPTO_AES_ARM64
select CRYPTO_LIB_AES
select CRYPTO_SIMD
endif