(sha1_digest): Use _nettle_write_be32.

Rev: nettle/sha1.c:1.2

diff --git a/sha1.c b/sha1.c
index e0498f70ddcbc805b1913823686d58ae21243fa4..c04ab7756eb1823ea95cd414d9cfb8b3a7ffee14 100644 (file)
--- a/sha1.c
+++ b/sha1.c
@@ -47,6 +47,7 @@
 #include "sha.h"
 
 #include "macros.h"
+#include "nettle-write.h"
 
 /* A block, treated as a sequence of 32-bit words. */
 #define SHA1_DATA_LENGTH 16
@@ -164,42 +165,9 @@ sha1_digest(struct sha1_ctx *ctx,
            unsigned length,
            uint8_t *digest)
 {
-  unsigned i;
-  unsigned words;
-  unsigned leftover;
-  
   assert(length <= SHA1_DIGEST_SIZE);
 
   sha1_final(ctx);
-  
-  words = length / 4;
-  leftover = length % 4;
-
-  for (i = 0; i < words; i++, digest += 4)
-    WRITE_UINT32(digest, ctx->digest[i]);
-
-  if (leftover)
-    {
-      uint32_t word;
-      unsigned j = leftover;
-      
-      assert(i < _SHA1_DIGEST_LENGTH);
-      
-      word = ctx->digest[i];
-      
-      switch (leftover)
-       {
-       default:
-         abort();
-       case 3:
-         digest[--j] = (word >> 8) & 0xff;
-         /* Fall through */
-       case 2:
-         digest[--j] = (word >> 16) & 0xff;
-         /* Fall through */
-       case 1:
-         digest[--j] = (word >> 24) & 0xff;
-       }
-    }
+  _nettle_write_be32(length, digest, ctx->digest);
   sha1_init(ctx);
 }