Commit 9ea9c58b authored by Eric Biggers's avatar Eric Biggers Committed by Herbert Xu
Browse files

crypto: lib/sha256 - add sha256() function 



Add a function sha256() which computes a SHA-256 digest in one step,
combining sha256_init() + sha256_update() + sha256_final().

This is similar to how we also have blake2s().

Reviewed-by: default avatarArd Biesheuvel <ardb@kernel.org>
Tested-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 6e8f972f

include/crypto/sha.h

+1 −0
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ static inline void sha256_init(struct sha256_state *sctx) 
}

void sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len);

void sha256_final(struct sha256_state *sctx, u8 *out);

void sha256(const u8 *data, unsigned int len, u8 *out);



static inline void sha224_init(struct sha256_state *sctx)

{

lib/crypto/sha256.c

+10 −0
Original line number Diff line number Diff line
@@ -280,4 +280,14 @@ void sha224_final(struct sha256_state *sctx, u8 *out) 
}

EXPORT_SYMBOL(sha224_final);



void sha256(const u8 *data, unsigned int len, u8 *out)

{

	struct sha256_state sctx;



	sha256_init(&sctx);

	sha256_update(&sctx, data, len);

	sha256_final(&sctx, out);

}

EXPORT_SYMBOL(sha256);



MODULE_LICENSE("GPL");

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