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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:50:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:50:02 -0800
commit37d4008484977f60d5d37499a2670c79b214dd46 (patch)
treee73ef4b7c3eee1543e13d7be2ecb1593e77eb123 /crypto/md5.c
parent68c6b859846bd078b37c6ca5f3882032f129e72d (diff)
parent8d0c123f8b710561cfd34f6e1a5bebc27988edbe (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (31 commits) crypto: aes_generic - Fix checkpatch errors crypto: fcrypt - Fix checkpatch errors crypto: ecb - Fix checkpatch errors crypto: des_generic - Fix checkpatch errors crypto: deflate - Fix checkpatch errors crypto: crypto_null - Fix checkpatch errors crypto: cipher - Fix checkpatch errors crypto: crc32 - Fix checkpatch errors crypto: compress - Fix checkpatch errors crypto: cast6 - Fix checkpatch errors crypto: cast5 - Fix checkpatch errors crypto: camellia - Fix checkpatch errors crypto: authenc - Fix checkpatch errors crypto: api - Fix checkpatch errors crypto: anubis - Fix checkpatch errors crypto: algapi - Fix checkpatch errors crypto: blowfish - Fix checkpatch errors crypto: aead - Fix checkpatch errors crypto: ablkcipher - Fix checkpatch errors crypto: pcrypt - call the complete function on error ...
Diffstat (limited to 'crypto/md5.c')
-rw-r--r--crypto/md5.c40
1 files changed, 24 insertions, 16 deletions
diff --git a/crypto/md5.c b/crypto/md5.c
index 83eb52961750..9fda213a592e 100644
--- a/crypto/md5.c
+++ b/crypto/md5.c
@@ -16,17 +16,13 @@
*
*/
#include <crypto/internal/hash.h>
+#include <crypto/md5.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/byteorder.h>
-#define MD5_DIGEST_SIZE 16
-#define MD5_HMAC_BLOCK_SIZE 64
-#define MD5_BLOCK_WORDS 16
-#define MD5_HASH_WORDS 4
-
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
@@ -35,12 +31,6 @@
#define MD5STEP(f, w, x, y, z, in, s) \
(w += f(x, y, z) + in, w = (w<<s | w>>(32-s)) + x)
-struct md5_ctx {
- u32 hash[MD5_HASH_WORDS];
- u32 block[MD5_BLOCK_WORDS];
- u64 byte_count;
-};
-
static void md5_transform(u32 *hash, u32 const *in)
{
u32 a, b, c, d;
@@ -141,7 +131,7 @@ static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
}
}
-static inline void md5_transform_helper(struct md5_ctx *ctx)
+static inline void md5_transform_helper(struct md5_state *ctx)
{
le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(u32));
md5_transform(ctx->hash, ctx->block);
@@ -149,7 +139,7 @@ static inline void md5_transform_helper(struct md5_ctx *ctx)
static int md5_init(struct shash_desc *desc)
{
- struct md5_ctx *mctx = shash_desc_ctx(desc);
+ struct md5_state *mctx = shash_desc_ctx(desc);
mctx->hash[0] = 0x67452301;
mctx->hash[1] = 0xefcdab89;
@@ -162,7 +152,7 @@ static int md5_init(struct shash_desc *desc)
static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
{
- struct md5_ctx *mctx = shash_desc_ctx(desc);
+ struct md5_state *mctx = shash_desc_ctx(desc);
const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
mctx->byte_count += len;
@@ -194,7 +184,7 @@ static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
static int md5_final(struct shash_desc *desc, u8 *out)
{
- struct md5_ctx *mctx = shash_desc_ctx(desc);
+ struct md5_state *mctx = shash_desc_ctx(desc);
const unsigned int offset = mctx->byte_count & 0x3f;
char *p = (char *)mctx->block + offset;
int padding = 56 - (offset + 1);
@@ -220,12 +210,30 @@ static int md5_final(struct shash_desc *desc, u8 *out)
return 0;
}
+static int md5_export(struct shash_desc *desc, void *out)
+{
+ struct md5_state *ctx = shash_desc_ctx(desc);
+
+ memcpy(out, ctx, sizeof(*ctx));
+ return 0;
+}
+
+static int md5_import(struct shash_desc *desc, const void *in)
+{
+ struct md5_state *ctx = shash_desc_ctx(desc);
+
+ memcpy(ctx, in, sizeof(*ctx));
+ return 0;
+}
+
static struct shash_alg alg = {
.digestsize = MD5_DIGEST_SIZE,
.init = md5_init,
.update = md5_update,
.final = md5_final,
- .descsize = sizeof(struct md5_ctx),
+ .export = md5_export,
+ .import = md5_import,
+ .descsize = sizeof(struct md5_state),
.base = {
.cra_name = "md5",
.cra_flags = CRYPTO_ALG_TYPE_SHASH,