shithub: blake2

Info  •  Files  •  Log  •  Branches

length bug

--- a/ref/blake2xs-ref.c

+++ b/ref/blake2xs-ref.c

@@ -93,11 +93,12 @@

   for (i = 0; outlen > 0; ++i) {

     const size_t block_size = (outlen < BLAKE2S_OUTBYTES) ? outlen : BLAKE2S_OUTBYTES;

     /* Initialize state */

+    P->digest_length = block_size;

     store32(&P->node_offset, i);

     blake2s_init_param(C, P);

     /* Process key if needed */

     blake2s_update(C, root, BLAKE2S_OUTBYTES);

-    blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, BLAKE2S_OUTBYTES);

+    blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, block_size);

     outlen -= block_size;

   }

   secure_zero_memory(root, sizeof(root));

@@ -132,12 +133,12 @@

     return -1;

   }

-  /* Compute the root of the tree */

+  /* Absorb the input message */

   if (blake2xs_update(S, in, inlen) < 0) {

     return -1;

   }

-  /* Compute the final hash using the counter construction */

+  /* Compute the root node of the tree and the final hash using the counter construction */

   return blake2xs_final(S, out, outlen);

 }

-- 

⑨