diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2019-09-01 22:35:31 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-05 14:54:54 +1000 |
| commit | 34d6245fbc81e764806a65fceaeb3ab3274a1e63 (patch) | |
| tree | ec464144e0cea02d4d998e6d07777fcf78fa63d9 /include/crypto/sha.h | |
| parent | 527aa8958f6e112e10479a8a8989c94164e090c0 (diff) | |
crypto: sha256 - Merge crypto/sha256.h into crypto/sha.h
The generic sha256 implementation from lib/crypto/sha256.c uses data
structs defined in crypto/sha.h, so lets move the function prototypes
there too.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto/sha.h')
| -rw-r--r-- | include/crypto/sha.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/crypto/sha.h b/include/crypto/sha.h index 8a46202b1857..535955c84187 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -112,4 +112,25 @@ extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data, extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data, unsigned int len, u8 *hash); + +/* + * Stand-alone implementation of the SHA256 algorithm. It is designed to + * have as little dependencies as possible so it can be used in the + * kexec_file purgatory. In other cases you should generally use the + * hash APIs from include/crypto/hash.h. Especially when hashing large + * amounts of data as those APIs may be hw-accelerated. + * + * For details see lib/crypto/sha256.c + */ + +extern int sha256_init(struct sha256_state *sctx); +extern int sha256_update(struct sha256_state *sctx, const u8 *input, + unsigned int length); +extern int sha256_final(struct sha256_state *sctx, u8 *hash); + +extern int sha224_init(struct sha256_state *sctx); +extern int sha224_update(struct sha256_state *sctx, const u8 *input, + unsigned int length); +extern int sha224_final(struct sha256_state *sctx, u8 *hash); + #endif |