Add CRYPTO_ARCH_HAVE_LIB_SHA256_SIMD and a SIMD block function
so that the caller can decide whether to use SIMD.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Instead of providing crypto_shash algorithms for the arch-optimized
SHA-256 code, instead implement the SHA-256 library. This is much
simpler, it makes the SHA-256 library functions be arch-optimized, and
it fixes the longstanding issue where the arch-optimized SHA-256 was
disabled by default. SHA-256 still remains available through
crypto_shash, but individual architectures no longer need to handle it.
To match sha256_blocks_arch(), change the type of the nblocks parameter
of the assembly functions from int to size_t. The assembly functions
actually already treated it as size_t.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Now that the architecture-optimized Poly1305 kconfig symbols are defined
regardless of CRYPTO, there is no need for CRYPTO_LIB_POLY1305 to select
CRYPTO. So, remove that. This makes the indirection through the
CRYPTO_LIB_POLY1305_INTERNAL symbol unnecessary, so get rid of that and
just use CRYPTO_LIB_POLY1305 directly. Finally, make the fallback to
the generic implementation use a default value instead of a select; this
makes it consistent with how the arch-optimized code gets enabled and
also with how CRYPTO_LIB_BLAKE2S_GENERIC gets enabled.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Now that the architecture-optimized ChaCha kconfig symbols are defined
regardless of CRYPTO, there is no need for CRYPTO_LIB_CHACHA to select
CRYPTO. So, remove that. This makes the indirection through the
CRYPTO_LIB_CHACHA_INTERNAL symbol unnecessary, so get rid of that and
just use CRYPTO_LIB_CHACHA directly. Finally, make the fallback to the
generic implementation use a default value instead of a select; this
makes it consistent with how the arch-optimized code gets enabled and
also with how CRYPTO_LIB_BLAKE2S_GENERIC gets enabled.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Continue disentangling the crypto library functions from the generic
crypto infrastructure by moving the x86 BLAKE2s, ChaCha, and Poly1305
library functions into a new directory arch/x86/lib/crypto/ that does
not depend on CRYPTO. This mirrors the distinction between crypto/ and
lib/crypto/.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
