lib/crypto/Kconfig

# SPDX-License-Identifier: GPL-2.0

menu "Crypto library routines"

config CRYPTO_LIB_UTILS
	tristate

config CRYPTO_LIB_AES
	tristate

config CRYPTO_LIB_AESCFB
	tristate
	select CRYPTO_LIB_AES
	select CRYPTO_LIB_UTILS

config CRYPTO_LIB_AESGCM
	tristate
	select CRYPTO_LIB_AES
	select CRYPTO_LIB_GF128MUL
	select CRYPTO_LIB_UTILS

config CRYPTO_LIB_ARC4
	tristate

config CRYPTO_LIB_GF128MUL
	tristate

config CRYPTO_ARCH_HAVE_LIB_BLAKE2S
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the Blake2s library interface,
	  either builtin or as a module.

config CRYPTO_LIB_BLAKE2S_GENERIC
	def_bool !CRYPTO_ARCH_HAVE_LIB_BLAKE2S
	help
	  This symbol can be depended upon by arch implementations of the
	  Blake2s library interface that require the generic code as a
	  fallback, e.g., for SIMD implementations. If no arch specific
	  implementation is enabled, this implementation serves the users
	  of CRYPTO_LIB_BLAKE2S.

config CRYPTO_ARCH_HAVE_LIB_CHACHA
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the ChaCha library interface,
	  either builtin or as a module.

config CRYPTO_LIB_CHACHA_GENERIC
	tristate
	default CRYPTO_LIB_CHACHA if !CRYPTO_ARCH_HAVE_LIB_CHACHA
	select CRYPTO_LIB_UTILS
	help
	  This symbol can be selected by arch implementations of the ChaCha
	  library interface that require the generic code as a fallback, e.g.,
	  for SIMD implementations. If no arch specific implementation is
	  enabled, this implementation serves the users of CRYPTO_LIB_CHACHA.

config CRYPTO_LIB_CHACHA
	tristate
	help
	  Enable the ChaCha library interface. This interface may be fulfilled
	  by either the generic implementation or an arch-specific one, if one
	  is available and enabled.

config CRYPTO_ARCH_HAVE_LIB_CURVE25519
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the Curve25519 library interface,
	  either builtin or as a module.

config CRYPTO_LIB_CURVE25519_GENERIC
	tristate
	select CRYPTO_LIB_UTILS
	help
	  This symbol can be depended upon by arch implementations of the
	  Curve25519 library interface that require the generic code as a
	  fallback, e.g., for SIMD implementations. If no arch specific
	  implementation is enabled, this implementation serves the users
	  of CRYPTO_LIB_CURVE25519.

config CRYPTO_LIB_CURVE25519_INTERNAL
	tristate
	select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n

config CRYPTO_LIB_CURVE25519
	tristate
	select CRYPTO
	select CRYPTO_LIB_CURVE25519_INTERNAL
	help
	  Enable the Curve25519 library interface. This interface may be
	  fulfilled by either the generic implementation or an arch-specific
	  one, if one is available and enabled.

config CRYPTO_LIB_DES
	tristate

config CRYPTO_LIB_POLY1305_RSIZE
	int
	default 2 if MIPS
	default 11 if X86_64
	default 9 if ARM || ARM64
	default 1

config CRYPTO_ARCH_HAVE_LIB_POLY1305
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the Poly1305 library interface,
	  either builtin or as a module.

config CRYPTO_LIB_POLY1305_GENERIC
	tristate
	default CRYPTO_LIB_POLY1305 if !CRYPTO_ARCH_HAVE_LIB_POLY1305
	help
	  This symbol can be selected by arch implementations of the Poly1305
	  library interface that require the generic code as a fallback, e.g.,
	  for SIMD implementations. If no arch specific implementation is
	  enabled, this implementation serves the users of CRYPTO_LIB_POLY1305.

config CRYPTO_LIB_POLY1305
	tristate
	help
	  Enable the Poly1305 library interface. This interface may be fulfilled
	  by either the generic implementation or an arch-specific one, if one
	  is available and enabled.

config CRYPTO_LIB_CHACHA20POLY1305
	tristate
	select CRYPTO_LIB_CHACHA
	select CRYPTO_LIB_POLY1305
	select CRYPTO_LIB_UTILS

config CRYPTO_LIB_SHA1
	tristate

config CRYPTO_LIB_SHA256
	tristate
	help
	  Enable the SHA-256 library interface. This interface may be fulfilled
	  by either the generic implementation or an arch-specific one, if one
	  is available and enabled.

config CRYPTO_ARCH_HAVE_LIB_SHA256
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the SHA-256 library interface.

config CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD
	bool
	help
	  Declares whether the architecture provides an arch-specific
	  accelerated implementation of the SHA-256 library interface
	  that is SIMD-based and therefore not usable in hardirq
	  context.

config CRYPTO_LIB_SHA256_GENERIC
	tristate
	default CRYPTO_LIB_SHA256 if !CRYPTO_ARCH_HAVE_LIB_SHA256
	help
	  This symbol can be selected by arch implementations of the SHA-256
	  library interface that require the generic code as a fallback, e.g.,
	  for SIMD implementations. If no arch specific implementation is
	  enabled, this implementation serves the users of CRYPTO_LIB_SHA256.

config CRYPTO_LIB_SM3
	tristate

if !KMSAN # avoid false positives from assembly
if ARM
source "arch/arm/lib/crypto/Kconfig"
endif
if ARM64
source "arch/arm64/lib/crypto/Kconfig"
endif
if MIPS
source "arch/mips/lib/crypto/Kconfig"
endif
if PPC
source "arch/powerpc/lib/crypto/Kconfig"
endif
if RISCV
source "arch/riscv/lib/crypto/Kconfig"
endif
if S390
source "arch/s390/lib/crypto/Kconfig"
endif
if SPARC
source "arch/sparc/lib/crypto/Kconfig"
endif
if X86
source "arch/x86/lib/crypto/Kconfig"
endif
endif

endmenu