2G ems initial

include/nettle/md5.h

@@ -0,0 +1,86 @@
+/* md5.h
+
+   The MD5 hash function, described in RFC 1321.
+
+   Copyright (C) 2001 Niels Möller
+
+   This file is part of GNU Nettle.
+
+   GNU Nettle is free software: you can redistribute it and/or
+   modify it under the terms of either:
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at your
+       option) any later version.
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at your
+       option) any later version.
+
+   or both in parallel, as here.
+
+   GNU Nettle 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 copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see http://www.gnu.org/licenses/.
+*/
+ 
+#ifndef NETTLE_MD5_H_INCLUDED
+#define NETTLE_MD5_H_INCLUDED
+
+#include "nettle-types.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Name mangling */
+#define md5_init nettle_md5_init
+#define md5_update nettle_md5_update
+#define md5_digest nettle_md5_digest
+
+#define MD5_DIGEST_SIZE 16
+#define MD5_BLOCK_SIZE 64
+/* For backwards compatibility */
+#define MD5_DATA_SIZE MD5_BLOCK_SIZE
+
+/* Digest is kept internally as 4 32-bit words. */
+#define _MD5_DIGEST_LENGTH 4
+
+struct md5_ctx
+{
+  uint32_t state[_MD5_DIGEST_LENGTH];
+  uint64_t count;               /* Block count */
+  uint8_t block[MD5_BLOCK_SIZE]; /* Block buffer */
+  unsigned index;               /* Into buffer */
+};
+
+void
+md5_init(struct md5_ctx *ctx);
+
+void
+md5_update(struct md5_ctx *ctx,
+	   size_t length,
+	   const uint8_t *data);
+
+void
+md5_digest(struct md5_ctx *ctx,
+	   size_t length,
+	   uint8_t *digest);
+
+/* Internal compression function. STATE points to 4 uint32_t words,
+   and DATA points to 64 bytes of input data, possibly unaligned. */
+void
+_nettle_md5_compress(uint32_t *state, const uint8_t *data);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NETTLE_MD5_H_INCLUDED */