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[avr-crypto-lib.git] / md5 / md5.h

diff --git a/md5/md5.h b/md5/md5.h
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+/* md5.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/>.
+*/
+/* 
+ * File:       md5.h
+ * Author:     Daniel Otte
+ * Date:       31.07.2006
+ * License: GPL
+ * Description: Implementation of the MD5 hash algorithm as described in RFC 1321
+ * 
+ */
+
+
+#ifndef MD5_H_
+#define MD5_H_
+
+#include <stdint.h>
+
+
+#define MD5_HASH_BITS  128
+#define MD5_HASH_BYTES (MD5_HASH_BITS/8)
+#define MD5_BLOCK_BITS 512
+#define MD5_BLOCK_BYTES (MD5_BLOCK_BITS/8)
+
+
+typedef struct md5_ctx_st {
+       uint32_t a[4];
+       uint32_t counter;
+} md5_ctx_t;
+
+typedef uint8_t md5_hash_t[MD5_HASH_BYTES];
+
+ 
+void md5_init(md5_ctx_t *s);
+void md5_nextBlock(md5_ctx_t *state, const void* block);
+void md5_lastBlock(md5_ctx_t *state, const void* block, uint16_t length);
+void md5_ctx2hash(md5_hash_t* dest, const md5_ctx_t* state);
+void md5(md5_hash_t* dest, const void* msg, uint32_t length_b);
+
+#endif /*MD5_H_*/