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--- a/src/utils/md5.h
+++ b/src/utils/md5.h
@@ -1,49 +1,34 @@
+/*	$OpenBSD: md5.h,v 1.15 2004/05/03 17:30:14 millert Exp $	*/
+
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ */
+
 #ifndef _MD5_H_
 #define _MD5_H_
-/* MD5.H - header file for MD5C.C
- * Id: md5.h,v 1.6.2.1 1998/02/18 02:28:14 jkh Exp $
- */
 
-/* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
-rights reserved.
+#define	MD5_BLOCK_LENGTH		64
+#define	MD5_DIGEST_LENGTH		16
+#define	MD5_DIGEST_STRING_LENGTH	(MD5_DIGEST_LENGTH * 2 + 1)
 
-License to copy and use this software is granted provided that it
-is identified as the "RSA Data Security, Inc. MD5 Message-Digest
-Algorithm" in all material mentioning or referencing this software
-or this function.
-
-License is also granted to make and use derivative works provided
-that such works are identified as "derived from the RSA Data
-Security, Inc. MD5 Message-Digest Algorithm" in all material
-mentioning or referencing the derived work.
-
-RSA Data Security, Inc. makes no representations concerning either
-the merchantability of this software or the suitability of this
-software for any particular purpose. It is provided "as is"
-without express or implied warranty of any kind.
-
-These notices must be retained in any copies of any part of this
-documentation and/or software.
- */
-
-/* Base functions from original file */
-/* MD5 context. */
 typedef struct MD5Context {
-  unsigned int state[4];	/* state (ABCD) */
-  unsigned int count[2];	/* number of bits, modulo 2^64 (lsb first) */
-  unsigned char buffer[64];	/* input buffer */
+	u_int32_t state[4];			/* state */
+	u_int64_t count;			/* number of bits, mod 2^64 */
+	u_int8_t buffer[MD5_BLOCK_LENGTH];	/* input buffer */
 } MD5_CTX;
 
-extern void   MD5Init (MD5_CTX *);
-extern void   MD5Update (MD5_CTX *, const unsigned char *, unsigned int);
-extern void   MD5Final (unsigned char [16], MD5_CTX *);
+void	 MD5Init(MD5_CTX *);
+void	 MD5Update(MD5_CTX *, const u_int8_t *, size_t);
+void	 MD5Pad(MD5_CTX *);
+void	 MD5Final(u_int8_t [MD5_DIGEST_LENGTH], MD5_CTX *);
+void	 MD5Transform(u_int32_t [4], const u_int8_t [MD5_BLOCK_LENGTH]);
 
-/* Convenience / utilities */
-#include <string>
-using std::string;
-extern void MD5Final(string& digest, MD5_CTX *);
-extern bool MD5File(const string& filename, string& digest, string *reason);
-extern string& MD5String(const string& data, string& digest);
-extern string& MD5HexPrint(const string& digest, string& xdigest);
-extern string& MD5HexScan(const string& xdigest, string& digest);
 #endif /* _MD5_H_ */