diff options
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 |