crypto: sha1 - implement base layer for SHA-1

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To reduce the number of copies of boilerplate code throughout
the tree, this patch implements generic glue for the SHA-1
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 (sha1_block_fn)(struct sha1_state *sst, u8 const *src, int blocks)

and pass it to the SHA-1 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 sha1_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>

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Ard Biesheuvel 2015-04-09 12:55:33 +02:00 • committed by Herbert Xu

parent 9c521a200b

commit c4d5b9ffa3

2 changed files with 107 additions and 1 deletions

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2

include/crypto/sha.h

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106

include/crypto/sha1_base.h

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