EAX bug fix, for 32-bit platforms.

ChangeLog

 2014-04-11  Niels Möller  <nisse@lysator.liu.se>
 
+	* eax.c (block16_xor): Fixed bug effecting 32-bit platforms.
+
 	* Makefile.in (DISTFILES): Deleted memxor.c, already included via
 	nettle_SOURCES.
 	* tools/Makefile.in (SOURCES): Add nettle-pbkdf2.c.

eax.c

@@ -49,8 +49,8 @@ block16_xor (union nettle_block16 *dst, const union nettle_block16 *src)
   dst->w[0] ^= src->w[0];
   dst->w[1] ^= src->w[1];
 #if SIZEOF_LONG == 4
-  dst->w[2] = src->w[2];
-  dst->w[3] = src->w[3];
+  dst->w[2] ^= src->w[2];
+  dst->w[3] ^= src->w[3];
 #endif
 }