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[avr-crypto-lib.git] / xtea / xtea.h

diff --git a/xtea/xtea.h b/xtea/xtea.h
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+/* xtea.h */
+/*
+    This file is part of the AVR-Crypto-Lib.
+    Copyright (C) 2008  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
+ * Date:               06.06.2006
+ * License:    GPL
+ */
+
+#ifndef XTEA_H_
+#define XTEA_H_
+
+#include <stdint.h> 
+ 
+/*
+ * this fits for xtea.c and xtea-asm.S
+ * 
+ */
+#define XTEA_BLOCKSIZE 64
+#define XTEA_BLOCKSIZEB ((XTEA_BLOCKSIZE+7)/8)
+#define XTEA_KEYSIZE 128
+#define XTEA_KEYSIZEB ((XTEA_KEYSIZE+7)/8)
+
+
+/*
+ * dest: the destination where result of operation will be placed (64 bit)
+ * v:   the block to operate on (64 bit)
+ * k:   the key for en/decryption (128 bit)
+ */
+void xtea_enc(void* dest, const void* v, const void* k);
+void xtea_dec(void* dest, const void* v, const void* k);
+
+
+#endif /*XTEA_H_*/