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ec8f7f4821
Since the Linux RNG no longer uses sha1_transform(), the SHA-1 library is no longer needed unconditionally. Make it possible to build the Linux kernel without the SHA-1 library by putting it behind a kconfig option, and selecting this new option from the kconfig options that gate the remaining users: CRYPTO_SHA1 for crypto/sha1_generic.c, BPF for kernel/bpf/core.c, and IPV6 for net/ipv6/addrconf.c. Unfortunately, since BPF is selected by NET, for now this can only make a difference for kernels built without networking support. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
131 lines
4.1 KiB
Plaintext
131 lines
4.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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menu "Crypto library routines"
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config CRYPTO_LIB_AES
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tristate
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config CRYPTO_LIB_ARC4
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tristate
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config CRYPTO_ARCH_HAVE_LIB_BLAKE2S
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bool
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Blake2s library interface,
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either builtin or as a module.
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config CRYPTO_LIB_BLAKE2S_GENERIC
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def_bool !CRYPTO_ARCH_HAVE_LIB_BLAKE2S
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help
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This symbol can be depended upon by arch implementations of the
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Blake2s library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_BLAKE2S.
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config CRYPTO_ARCH_HAVE_LIB_CHACHA
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the ChaCha library interface,
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either builtin or as a module.
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config CRYPTO_LIB_CHACHA_GENERIC
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tristate
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select XOR_BLOCKS
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help
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This symbol can be depended upon by arch implementations of the
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ChaCha library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_CHACHA.
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config CRYPTO_LIB_CHACHA
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tristate "ChaCha library interface"
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depends on CRYPTO
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depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
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select CRYPTO_LIB_CHACHA_GENERIC if CRYPTO_ARCH_HAVE_LIB_CHACHA=n
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help
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Enable the ChaCha library interface. This interface may be fulfilled
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by either the generic implementation or an arch-specific one, if one
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is available and enabled.
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config CRYPTO_ARCH_HAVE_LIB_CURVE25519
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Curve25519 library interface,
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either builtin or as a module.
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config CRYPTO_LIB_CURVE25519_GENERIC
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tristate
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help
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This symbol can be depended upon by arch implementations of the
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Curve25519 library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_CURVE25519.
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config CRYPTO_LIB_CURVE25519
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tristate "Curve25519 scalar multiplication library"
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depends on CRYPTO_ARCH_HAVE_LIB_CURVE25519 || !CRYPTO_ARCH_HAVE_LIB_CURVE25519
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select CRYPTO_LIB_CURVE25519_GENERIC if CRYPTO_ARCH_HAVE_LIB_CURVE25519=n
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select LIB_MEMNEQ
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help
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Enable the Curve25519 library interface. This interface may be
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fulfilled by either the generic implementation or an arch-specific
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one, if one is available and enabled.
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config CRYPTO_LIB_DES
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tristate
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config CRYPTO_LIB_POLY1305_RSIZE
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int
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default 2 if MIPS
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default 11 if X86_64
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default 9 if ARM || ARM64
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default 1
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config CRYPTO_ARCH_HAVE_LIB_POLY1305
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tristate
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help
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Declares whether the architecture provides an arch-specific
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accelerated implementation of the Poly1305 library interface,
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either builtin or as a module.
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config CRYPTO_LIB_POLY1305_GENERIC
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tristate
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help
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This symbol can be depended upon by arch implementations of the
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Poly1305 library interface that require the generic code as a
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fallback, e.g., for SIMD implementations. If no arch specific
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implementation is enabled, this implementation serves the users
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of CRYPTO_LIB_POLY1305.
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config CRYPTO_LIB_POLY1305
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tristate "Poly1305 library interface"
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depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
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select CRYPTO_LIB_POLY1305_GENERIC if CRYPTO_ARCH_HAVE_LIB_POLY1305=n
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help
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Enable the Poly1305 library interface. This interface may be fulfilled
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by either the generic implementation or an arch-specific one, if one
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is available and enabled.
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config CRYPTO_LIB_CHACHA20POLY1305
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tristate "ChaCha20-Poly1305 AEAD support (8-byte nonce library version)"
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depends on CRYPTO_ARCH_HAVE_LIB_CHACHA || !CRYPTO_ARCH_HAVE_LIB_CHACHA
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depends on CRYPTO_ARCH_HAVE_LIB_POLY1305 || !CRYPTO_ARCH_HAVE_LIB_POLY1305
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depends on CRYPTO
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select CRYPTO_LIB_CHACHA
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select CRYPTO_LIB_POLY1305
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select CRYPTO_ALGAPI
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config CRYPTO_LIB_SHA1
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tristate
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config CRYPTO_LIB_SHA256
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tristate
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endmenu
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