Add bulk processing for hash transform functions

* cipher/hash-common.c (_gcry_md_block_write): Preload 'hd->blocksize'
to stack, pass number of blocks to 'hd->bwrite'.
* cipher/hash-common.c (_gcry_md_block_write_t): Add 'nblks'.
* cipher/gostr3411-94.c: Rename 'transform' function to
'transform_blk', add new 'transform' function with 'nblks' as
additional input.
* cipher/md4.c: Ditto.
* cipher/md5.c: Ditto.
* cipher/md4.c: Ditto.
* cipher/rmd160.c: Ditto.
* cipher/sha1.c: Ditto.
* cipher/sha256.c: Ditto.
* cipher/sha512.c: Ditto.
* cipher/stribog.c: Ditto.
* cipher/tiger.c: Ditto.
* cipher/whirlpool.c: Ditto.
--

Pass number of blocks to algorithm for futher optimizations.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>

1 files changed, 19 insertions, 2 deletions

diff --git a/cipher/gostr3411-94.c b/cipher/gostr3411-94.c
index 12672165..b3326aa5 100644
--- a/cipher/gostr3411-94.c
+++ b/cipher/gostr3411-94.c
@@ -41,7 +41,7 @@ typedef struct {
 } GOSTR3411_CONTEXT;
 
 static unsigned int
-transform (void *c, const unsigned char *data);
+transform (void *c, const unsigned char *data, size_t nblks);
 
 static void
 gost3411_init (void *context)
@@ -211,7 +211,7 @@ do_hash_step (GOST28147_context *hd, unsigned char *h, unsigned char *m)
 
 
 static unsigned int
-transform (void *ctx, const unsigned char *data)
+transform_blk (void *ctx, const unsigned char *data)
 {
   GOSTR3411_CONTEXT *hd = ctx;
   byte m[32];
@@ -224,6 +224,23 @@ transform (void *ctx, const unsigned char *data)
   return /* burn_stack */ burn + 3 * sizeof(void*) + 32 + 2 * sizeof(void*);
 }
 
+
+static unsigned int
+transform ( void *c, const unsigned char *data, size_t nblks )
+{
+  unsigned int burn;
+
+  do
+    {
+      burn = transform_blk (c, data);
+      data += 32;
+    }
+  while (--nblks);
+
+  return burn;
+}
+
+
 /*
    The routine finally terminates the computation and returns the
    digest.  The handle is prepared for a new cycle, but adding bytes