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Directory : /proc/thread-self/root/lib/modules/5.15.0-1084-aws/build/arch/arm/crypto/

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Current File : /proc/thread-self/root/lib/modules/5.15.0-1084-aws/build/arch/arm/crypto/Kconfig

# SPDX-License-Identifier: GPL-2.0

menuconfig ARM_CRYPTO
	bool "ARM Accelerated Cryptographic Algorithms"
	depends on ARM
	help
	  Say Y here to choose from a selection of cryptographic algorithms
	  implemented using ARM specific CPU features or instructions.

if ARM_CRYPTO

config CRYPTO_SHA1_ARM
	tristate "SHA1 digest algorithm (ARM-asm)"
	select CRYPTO_SHA1
	select CRYPTO_HASH
	help
	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
	  using optimized ARM assembler.

config CRYPTO_SHA1_ARM_NEON
	tristate "SHA1 digest algorithm (ARM NEON)"
	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 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_HASH
	help
	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
	  using special ARMv8 Crypto Extensions.

config CRYPTO_SHA2_ARM_CE
	tristate "SHA-224/256 digest algorithm (ARM v8 Crypto Extensions)"
	depends on KERNEL_MODE_NEON
	select CRYPTO_SHA256_ARM
	select CRYPTO_HASH
	help
	  SHA-256 secure hash standard (DFIPS 180-2) implemented
	  using special ARMv8 Crypto Extensions.

config CRYPTO_SHA256_ARM
	tristate "SHA-224/256 digest algorithm (ARM-asm and NEON)"
	select CRYPTO_HASH
	depends on !CPU_V7M
	help
	  SHA-256 secure hash standard (DFIPS 180-2) implemented
	  using optimized ARM assembler and NEON, when available.

config CRYPTO_SHA512_ARM
	tristate "SHA-384/512 digest algorithm (ARM-asm and NEON)"
	select CRYPTO_HASH
	depends on !CPU_V7M
	help
	  SHA-512 secure hash standard (DFIPS 180-2) implemented
	  using optimized ARM assembler and NEON, when available.

config CRYPTO_BLAKE2S_ARM
	bool "BLAKE2s digest algorithm (ARM)"
	select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
	help
	  BLAKE2s digest algorithm optimized with ARM scalar instructions.  This
	  is faster than the generic implementations of BLAKE2s and BLAKE2b, but
	  slower than the NEON implementation of BLAKE2b.  (There is no NEON
	  implementation of BLAKE2s, since NEON doesn't really help with it.)

config CRYPTO_BLAKE2B_NEON
	tristate "BLAKE2b digest algorithm (ARM NEON)"
	depends on KERNEL_MODE_NEON
	select CRYPTO_BLAKE2B
	help
	  BLAKE2b digest algorithm optimized with ARM NEON instructions.
	  On ARM processors that have NEON support but not the ARMv8
	  Crypto Extensions, typically this BLAKE2b implementation is
	  much faster than SHA-2 and slightly faster than SHA-1.

config CRYPTO_AES_ARM
	tristate "Scalar AES cipher for ARM"
	select CRYPTO_ALGAPI
	select CRYPTO_AES
	help
	  Use optimized AES assembler routines for ARM platforms.

	  On ARM processors without the Crypto Extensions, this is the
	  fastest AES implementation for single blocks.  For multiple
	  blocks, the NEON bit-sliced implementation is usually faster.

	  This implementation may be vulnerable to cache timing attacks,
	  since it uses lookup tables.  However, as countermeasures it
	  disables IRQs and preloads the tables; it is hoped this makes
	  such attacks very difficult.

config CRYPTO_AES_ARM_BS
	tristate "Bit sliced AES using NEON instructions"
	depends on KERNEL_MODE_NEON
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_AES
	select CRYPTO_AES
	select CRYPTO_CBC
	select CRYPTO_SIMD
	help
	  Use a faster and more secure NEON based implementation of AES in CBC,
	  CTR and XTS modes

	  Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
	  and for XTS mode encryption, CBC and XTS mode decryption speedup is
	  around 25%. (CBC encryption speed is not affected by this driver.)
	  This implementation does not rely on any lookup tables so it is
	  believed to be invulnerable to cache timing attacks.

config CRYPTO_AES_ARM_CE
	tristate "Accelerated AES using ARMv8 Crypto Extensions"
	depends on KERNEL_MODE_NEON
	select CRYPTO_SKCIPHER
	select CRYPTO_LIB_AES
	select CRYPTO_SIMD
	help
	  Use an implementation of AES in CBC, CTR and XTS modes that uses
	  ARMv8 Crypto Extensions

config CRYPTO_GHASH_ARM_CE
	tristate "PMULL-accelerated GHASH using NEON/ARMv8 Crypto Extensions"
	depends on KERNEL_MODE_NEON
	select CRYPTO_HASH
	select CRYPTO_CRYPTD
	select CRYPTO_GF128MUL
	help
	  Use an implementation of GHASH (used by the GCM AEAD chaining mode)
	  that uses the 64x64 to 128 bit polynomial multiplication (vmull.p64)
	  that is part of the ARMv8 Crypto Extensions, or a slower variant that
	  uses the vmull.p8 instruction that is part of the basic NEON ISA.

config CRYPTO_CRCT10DIF_ARM_CE
	tristate "CRCT10DIF digest algorithm using PMULL instructions"
	depends on KERNEL_MODE_NEON
	depends on CRC_T10DIF
	select CRYPTO_HASH

config CRYPTO_CRC32_ARM_CE
	tristate "CRC32(C) digest algorithm using CRC and/or PMULL instructions"
	depends on KERNEL_MODE_NEON
	depends on CRC32
	select CRYPTO_HASH

config CRYPTO_CHACHA20_NEON
	tristate "NEON and scalar accelerated ChaCha stream cipher algorithms"
	select CRYPTO_SKCIPHER
	select CRYPTO_ARCH_HAVE_LIB_CHACHA

config CRYPTO_POLY1305_ARM
	tristate "Accelerated scalar and SIMD Poly1305 hash implementations"
	select CRYPTO_HASH
	select CRYPTO_ARCH_HAVE_LIB_POLY1305

config CRYPTO_NHPOLY1305_NEON
	tristate "NEON accelerated NHPoly1305 hash function (for Adiantum)"
	depends on KERNEL_MODE_NEON
	select CRYPTO_NHPOLY1305

config CRYPTO_CURVE25519_NEON
	tristate "NEON accelerated Curve25519 scalar multiplication library"
	depends on KERNEL_MODE_NEON
	select CRYPTO_LIB_CURVE25519_GENERIC
	select CRYPTO_ARCH_HAVE_LIB_CURVE25519

endif

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