linux/include/crypto/sha256_base.h, branch v4.5Mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=v4.52015-04-10T13:39:39Zcrypto: sha256 - implement base layer for SHA-2562015-04-10T13:39:39ZArd Biesheuvelard.biesheuvel@linaro.org2015-04-09T10:55:34Zurn:sha1:11b8d5ef91388162103bf28f2e9d6dfd400d192d
To reduce the number of copies of boilerplate code throughout
the tree, this patch implements generic glue for the SHA-256
algorithm. This allows a specific arch or hardware implementation
to only implement the special handling that it needs.
The users need to supply an implementation of
void (sha256_block_fn)(struct sha256_state *sst, u8 const *src, int blocks)
and pass it to the SHA-256 base functions. For easy casting between the
prototype above and existing block functions that take a 'u32 state[]'
as their first argument, the 'state' member of struct sha256_state is
moved to the base of the struct.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>