Update Skein-512 for the new 1.3 specification, just changes the key

schedule constant to prevent rotational attacks.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/hash/skein/skein_512.cpp b/src/hash/skein/skein_512.cpp
index 1434f0b3e..3ed3e32a7 100644
--- a/src/hash/skein/skein_512.cpp
+++ b/src/hash/skein/skein_512.cpp
@@ -1,6 +1,6 @@
 /*
 * The Skein-512 hash function
-* (C) 2009 Jack Lloyd
+* (C) 2009-2010 Jack Lloyd
 *
 * Distributed under the terms of the Botan license
 */
@@ -47,7 +47,7 @@ void ubi_512(MemoryRegion<u64bit>& H,
          }
 
       H[8] = H[0] ^ H[1] ^ H[2] ^ H[3] ^
-             H[4] ^ H[5] ^ H[6] ^ H[7] ^ 0x5555555555555555;
+             H[4] ^ H[5] ^ H[6] ^ H[7] ^ 0x1BD11BDAA9FC1A22;
 
       T[2] = T[0] ^ T[1];