--- /dev/null
+/* threefish_mix_c.c */
+/*
+ This file is part of the AVR-Crypto-Lib.
+ Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+/*
+ * \author Daniel Otte
+ * \email daniel.otte@rub.de
+ * \date 2009-03-16
+ * \license GPLv3 or later
+ *
+ *
+ *
+ */
+
+#include <stdint.h>
+
+#define X0 (((uint64_t*)data)[0])
+#define X1 (((uint64_t*)data)[1])
+void threefish_mix(void* data, uint8_t rot){
+ uint64_t x;
+ x = X1;
+ X0 += x;
+ X1 = ((x<<rot)|(x>>(64-rot))) ^ X0;
+}