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authorAdrian-Ken Rueegsegger <ken@codelabs.ch>2008-12-02 21:08:20 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2008-12-25 11:02:15 +1100
commit54ccb36776eb7e03b592bfab60393c7800851a0b (patch)
tree9f9c1ae359761d7748e1e9a967c7b98b13065561 /crypto
parent3b8efb4c4147094652570d7791a516d07b7df8c2 (diff)
downloadconfigs-54ccb36776eb7e03b592bfab60393c7800851a0b.tar.gz
crypto: sha1 - Switch to shash
This patch changes sha1 to the new shash interface. Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig2
-rw-r--r--crypto/sha1_generic.c56
2 files changed, 32 insertions, 26 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index edf6c71b576..5386beb503e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -351,7 +351,7 @@ config CRYPTO_RMD320
config CRYPTO_SHA1
tristate "SHA1 digest algorithm"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
diff --git a/crypto/sha1_generic.c b/crypto/sha1_generic.c
index c7c6899e1fc..9efef20454c 100644
--- a/crypto/sha1_generic.c
+++ b/crypto/sha1_generic.c
@@ -16,10 +16,10 @@
* any later version.
*
*/
+#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
-#include <linux/crypto.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <crypto/sha.h>
@@ -31,9 +31,10 @@ struct sha1_ctx {
u8 buffer[64];
};
-static void sha1_init(struct crypto_tfm *tfm)
+static int sha1_init(struct shash_desc *desc)
{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ struct sha1_ctx *sctx = shash_desc_ctx(desc);
+
static const struct sha1_ctx initstate = {
0,
{ SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4 },
@@ -41,12 +42,14 @@ static void sha1_init(struct crypto_tfm *tfm)
};
*sctx = initstate;
+
+ return 0;
}
-static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
+static int sha1_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ struct sha1_ctx *sctx = shash_desc_ctx(desc);
unsigned int partial, done;
const u8 *src;
@@ -74,13 +77,15 @@ static void sha1_update(struct crypto_tfm *tfm, const u8 *data,
partial = 0;
}
memcpy(sctx->buffer + partial, src, len - done);
+
+ return 0;
}
/* Add padding and return the message digest. */
-static void sha1_final(struct crypto_tfm *tfm, u8 *out)
+static int sha1_final(struct shash_desc *desc, u8 *out)
{
- struct sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ struct sha1_ctx *sctx = shash_desc_ctx(desc);
__be32 *dst = (__be32 *)out;
u32 i, index, padlen;
__be64 bits;
@@ -91,10 +96,10 @@ static void sha1_final(struct crypto_tfm *tfm, u8 *out)
/* Pad out to 56 mod 64 */
index = sctx->count & 0x3f;
padlen = (index < 56) ? (56 - index) : ((64+56) - index);
- sha1_update(tfm, padding, padlen);
+ sha1_update(desc, padding, padlen);
/* Append length */
- sha1_update(tfm, (const u8 *)&bits, sizeof(bits));
+ sha1_update(desc, (const u8 *)&bits, sizeof(bits));
/* Store state in digest */
for (i = 0; i < 5; i++)
@@ -102,32 +107,33 @@ static void sha1_final(struct crypto_tfm *tfm, u8 *out)
/* Wipe context */
memset(sctx, 0, sizeof *sctx);
+
+ return 0;
}
-static struct crypto_alg alg = {
- .cra_name = "sha1",
- .cra_driver_name= "sha1-generic",
- .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct sha1_ctx),
- .cra_module = THIS_MODULE,
- .cra_alignmask = 3,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = { .digest = {
- .dia_digestsize = SHA1_DIGEST_SIZE,
- .dia_init = sha1_init,
- .dia_update = sha1_update,
- .dia_final = sha1_final } }
+static struct shash_alg alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_init,
+ .update = sha1_update,
+ .final = sha1_final,
+ .descsize = sizeof(struct sha1_ctx),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name= "sha1-generic",
+ .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
};
static int __init sha1_generic_mod_init(void)
{
- return crypto_register_alg(&alg);
+ return crypto_register_shash(&alg);
}
static void __exit sha1_generic_mod_fini(void)
{
- crypto_unregister_alg(&alg);
+ crypto_unregister_shash(&alg);
}
module_init(sha1_generic_mod_init);