/*
- * $Source$
- * $Author$
- * $Id$
- *
- * Copyright 1990,1991 by the Massachusetts Institute of Technology.
- * All Rights Reserved.
- *
- * For copying and distribution information, please see the file
- * <krb5/copyright.h>.
- *
- * Definitions for the MD4 checksum.
+ **********************************************************************
+ ** md4.h -- Header file for implementation of MD4 **
+ ** RSA Data Security, Inc. MD4 Message Digest Algorithm **
+ ** Created: 2/17/90 RLR **
+ ** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version **
+ **********************************************************************
*/
/*
- * md4.h from RFC1186
- *
- * $Log$
- * Revision 5.4 1991/02/13 15:58:08 jtkohl
- * change lengths to include the count
- *
- * Revision 5.3 91/01/03 16:54:49 jtkohl
- * add encrypted version entries
- *
- * Revision 5.2 90/11/20 10:23:54 jtkohl
- * don't need types defined here, see <encryption.h>
- *
- * Revision 5.1 90/11/08 11:30:49 jtkohl
- * add STDC function prototypes
- * add declaration of MDreverse
- * add Kerberos V5 additions.
- *
- * Revision 5.0 90/11/07 14:12:21 jtkohl
- * Initial code from RFC
- *
+ **********************************************************************
+ ** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. **
+ ** **
+ ** License to copy and use this software is granted provided that **
+ ** it is identified as the "RSA Data Security, Inc. MD4 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. MD4 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. **
+ **********************************************************************
*/
-#include <krb5/copyright.h>
+/* typedef a 32 bit type */
+typedef unsigned long int UINT4;
-#ifndef KRB5_RSA_MD4__
-#define KRB5_RSA_MD4__
-
-/* 4 words of buffer, plus 8 bytes of count */
-#define RSA_MD4_CKSUM_LENGTH (4*sizeof(krb5_int32)+8)
-#define RSA_MD4_DES_CKSUM_LENGTH (4*sizeof(krb5_int32)+8)
-
-extern krb5_checksum_entry
- rsa_md4_cksumtable_entry,
- rsa_md4_des_cksumtable_entry;
-
-/*
-** ********************************************************************
-** md4.h -- Header file for implementation of **
-** MD4 Message Digest Algorithm **
-** Updated: 2/13/90 by Ronald L. Rivest **
-** (C) 1990 RSA Data Security, Inc. **
-** ********************************************************************
-*/
-
-#ifdef BITS32
-/* MDstruct is the data structure for a message digest computation.
-*/
+/* Data structure for MD4 (Message Digest) computation */
typedef struct {
- unsigned int buffer[4]; /* Holds 4-word result of MD computation */
- unsigned char count[8]; /* Number of bits processed so far */
- unsigned int done; /* Nonzero means MD computation finished */
-} MDstruct, *MDptr;
-#else
- error: you gotta fix this implementation to deal with non-32 bit words;
-#endif
+ UINT4 i[2]; /* number of _bits_ handled mod 2^64 */
+ UINT4 buf[4]; /* scratch buffer */
+ unsigned char in[64]; /* input buffer */
+ unsigned char digest[16]; /* actual digest after MD4Final call */
+} MD4_CTX;
-/* MDbegin(MD)
-** Input: MD -- an MDptr
-** Initialize the MDstruct prepatory to doing a message digest
-** computation.
-*/
-#ifdef __STDC__
-extern void MDbegin(MDptr);
-#else
-extern void MDbegin();
-#endif
-
-/* MDupdate(MD,X,count)
-** Input: MD -- an MDptr
-** X -- a pointer to an array of unsigned characters.
-** count -- the number of bits of X to use (an unsigned int).
-** Updates MD using the first "count" bits of X.
-** The array pointed to by X is not modified.
-** If count is not a multiple of 8, MDupdate uses high bits of
-** last byte.
-** This is the basic input routine for a user.
-** The routine terminates the MD computation when count < 512, so
-** every MD computation should end with one call to MDupdate with a
-** count less than 512. Zero is OK for a count.
-*/
-#ifdef __STDC__
-extern void MDupdate(MDptr, unsigned char *, unsigned int);
-#else
-extern void MDupdate();
-#endif
-
-/* MDprint(MD)
-** Input: MD -- an MDptr
-** Prints message digest buffer MD as 32 hexadecimal digits.
-** Order is from low-order byte of buffer[0] to high-order byte
-** of buffer[3].
-** Each byte is printed with high-order hexadecimal digit first.
-*/
-#ifdef __STDC__
-extern void MDprint(MDptr);
-#else
-extern void MDprint();
-#endif
-
-/* MDreverse(X)
-** Reverse the byte-ordering of every int in X.
-** Assumes X is an array of 16 ints.
-*/
-#ifdef __STDC__
-extern void MDreverse(unsigned int *);
-#else
-extern void MDreverse();
-#endif
+void MD4Init ();
+void MD4Update ();
+void MD4Final ();
/*
-** End of md4.h
-*/
-#endif /* KRB5_RSA_MD4__ */
+ **********************************************************************
+ ** End of md4.h **
+ ******************************* (cut) ********************************
+ */
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