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| author | Tim Chen <tim.c.chen@linux.intel.com> | 2013-03-26 13:58:49 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-04-03 09:06:31 +0800 |
| commit | 35d2c9d0c3cfd90850dc647250610587743e1f29 (patch) | |
| tree | d395d18fa88811ed2e3e477cb438e7521b9a9858 | |
| parent | 873b9cafa8cae695d92f0faabe7166af10078b78 (diff) | |
| download | linux-35d2c9d0c3cfd90850dc647250610587743e1f29.tar.bz2 | |
crypto: sha256 - Expose SHA256 generic routine to be callable externally.
Other SHA256 routine may need to use the generic routine when
FPU is not available.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/sha256_generic.c | 11 | ||||
| -rw-r--r-- | include/crypto/sha.h | 2 |
2 files changed, 8 insertions, 5 deletions
diff --git a/crypto/sha256_generic.c b/crypto/sha256_generic.c index c3ed4ec924e1..543366779524 100644 --- a/crypto/sha256_generic.c +++ b/crypto/sha256_generic.c @@ -246,7 +246,7 @@ static int sha256_init(struct shash_desc *desc) return 0; } -static int sha256_update(struct shash_desc *desc, const u8 *data, +int crypto_sha256_update(struct shash_desc *desc, const u8 *data, unsigned int len) { struct sha256_state *sctx = shash_desc_ctx(desc); @@ -277,6 +277,7 @@ static int sha256_update(struct shash_desc *desc, const u8 *data, return 0; } +EXPORT_SYMBOL(crypto_sha256_update); static int sha256_final(struct shash_desc *desc, u8 *out) { @@ -293,10 +294,10 @@ static int sha256_final(struct shash_desc *desc, u8 *out) /* Pad out to 56 mod 64. */ index = sctx->count & 0x3f; pad_len = (index < 56) ? (56 - index) : ((64+56) - index); - sha256_update(desc, padding, pad_len); + crypto_sha256_update(desc, padding, pad_len); /* Append length (before padding) */ - sha256_update(desc, (const u8 *)&bits, sizeof(bits)); + crypto_sha256_update(desc, (const u8 *)&bits, sizeof(bits)); /* Store state in digest */ for (i = 0; i < 8; i++) @@ -339,7 +340,7 @@ static int sha256_import(struct shash_desc *desc, const void *in) static struct shash_alg sha256_algs[2] = { { .digestsize = SHA256_DIGEST_SIZE, .init = sha256_init, - .update = sha256_update, + .update = crypto_sha256_update, .final = sha256_final, .export = sha256_export, .import = sha256_import, @@ -355,7 +356,7 @@ static struct shash_alg sha256_algs[2] = { { }, { .digestsize = SHA224_DIGEST_SIZE, .init = sha224_init, - .update = sha256_update, + .update = crypto_sha256_update, .final = sha224_final, .descsize = sizeof(struct sha256_state), .base = { diff --git a/include/crypto/sha.h b/include/crypto/sha.h index c6c9c1fe460c..f46ff61e3780 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -87,4 +87,6 @@ struct shash_desc; extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data, unsigned int len); +extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data, + unsigned int len); #endif |