mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
b8399819b2
The temporary W[] array is currently zeroed out once every call to sha256_transform(), i.e. once every 64 bytes of input data. Moving it to sha256_update() instead so that it is cleared only once per update can save about 2-3% of the total time taken to compute the digest, with a reasonable memset() implementation, and considerably more (~20%) with a bad one (eg the x86 purgatory currently uses a memset() coded in C). Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Reviewed-by: Eric Biggers <ebiggers@google.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
||
|---|---|---|
| .. | ||
| aes.c | ||
| arc4.c | ||
| blake2s-generic.c | ||
| blake2s-selftest.c | ||
| blake2s.c | ||
| chacha.c | ||
| chacha20poly1305-selftest.c | ||
| chacha20poly1305.c | ||
| curve25519-fiat32.c | ||
| curve25519-generic.c | ||
| curve25519-hacl64.c | ||
| curve25519-selftest.c | ||
| curve25519.c | ||
| des.c | ||
| Kconfig | ||
| libchacha.c | ||
| Makefile | ||
| poly1305-donna32.c | ||
| poly1305-donna64.c | ||
| poly1305.c | ||
| sha256.c | ||