diff options
| author | Eric Biggers <ebiggers@google.com> | 2020-07-08 09:39:40 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-07-16 21:49:05 +1000 |
| commit | 9ea9c58b40a441a0babef8c615acedcfb3733919 (patch) | |
| tree | dc3f3877b658e2a9ce6432550e0e5a6d22095d75 | |
| parent | 6e8f972fc3fb03797abb88feee6704dccada93f6 (diff) | |
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: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/crypto/sha.h | 1 | ||||
| -rw-r--r-- | lib/crypto/sha256.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/crypto/sha.h b/include/crypto/sha.h index 10753ff71d46..4ff3da816630 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -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) { diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c index 2e621697c5c3..2321f6cb322f 100644 --- a/lib/crypto/sha256.c +++ b/lib/crypto/sha256.c @@ -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"); |